Patent Grant
11220124
The invention relates to a stamp pad, a stamp, and a transport clamp.
Different stamps with replaceable stamp pads or replaceable carrying devices for stamp pads are already known. Such a so-called self-king stamp is described in WO 01/83 227 of the applicant. This self-inking stamp with upper inking comprises a lower part that can be placed on the surface to be stamped and a reversing mechanism—arranged therein—for a printing plate carrier that can be moved to and fro between an ink pad and a contact frame subject to simultaneous reversal. To this end, this printing plate carrier is movement-coupled with an actuation upper part, displaceable against the resetting force of a spring relative to the lower part, which surrounds the lower part, to the lateral parts of the actuation upper part through a reversing axle of the printing plate carrier guided in elongated holes of the lower part. The actuation upper pert also comprises a hinged hood part which in its closed position covers the ink pad shaft in the lower part. The ink pad shaft of the lower part of the stamp becomes accessible for replacing the ink pad by swiveling the hood part open.
Disadvantageous with the known stamps with replaceable ink or stamp pad in most cases is that for removing as well as re-inserting a stamp pad to be replaced a series of manipulations of the stamp or its parts is required, which gives many users the impression that the replacement operation is overly complicated.
From AT 503 827 B1 a stamp with a first housing part, with a second housing part that can be pivoted relative to the first housing part and with a stamp plate is known. The stamp plate can be swiveled about an axis located in a first end region of the first housing part from a rest position into a function position, wherein the stamp plate in the rest position is located between the first housing part and the second housing part. In the function position the first housing part, the second housing pad and stamp plate approximately form a triangle. The second housing part comprises a guide ink path which is in engagement with the stamp plate. On the stamp plate a control link path that is or can be brought into engagement with an actuation element is arranged. Furthermore, a stamp pad is arranged in the first housing part, wherein in the rest position the stamp plate contacts the stamp pad for picking up ink or through compression of the first and second housing part the stamp plate located in-between is pressed on to the stamp pad for picking up ink. To remove the stamp pad a depression is arranged on the first housing part on the top, so that actuation of the stamp pad is possible and it can be puled out of the housing part. Furthermore, means. more preferably engagement elements for fastening the stamp pad are arranged on the stamp pad so that falling out of the stamp pad is prevented.
Furthermore, a stamp with the designation “Mobile Printy” of the applicant is known from the prior art which approximately corresponds to the construction of AT 503 827 B1. With the “Mobile Printy”, the removal of the stamp pad for example was improved. To this end, handle elements with engagement elements arranged thereon were provided on the stamp pad on the lateral surfaces. The handle elements are slid into clearances on the lateral surfaces of the first housing part provided for this purpose, wherein the engagement elements in the interior of the housing part engage in a protrusion. To avoid wrongly positioning the stamp pad in the first housing part the handle elements and the clearances were suitably shaped, wherein for this purpose a side of the handle element and correspondingly the clearance were designed half-round, so that the stamp pad can only be fully slid into the first housing part in one direction. In order to make it possible for the stamp pad to be removed, it is slightly compressed on the lateral handle elements as a result of which the engagement elements are moved towards each other and release the engagement so that the stamp pad can be removed from the first housing par through light pulling.
With such a construction the stamp pad is inserted longitudinally via the end face so that the handle elements are arranged on the longitudinal surfaces of the stamp pad. In order to achieve improved actuation of the engagement elements arranged on the handle elements, the handle elements laterally protrude over the lateral surfaces of the stamp, as a result of which the handle elements can be simply pressed together and thus the engagement in the interior of the stamp is released.
In addition, a transport clamp or a holder for manual stamps is known from EP 0 873 245 B1 with an outer housing, a stamp-carrying body which is fastened in the outer housing in a manner capable of sliding and which comprises a lower circumferential edge, and at least one spring which ejects the stamp-carrying body from the outer housing, wherein a cover having a receiving surface in order to strike against the lower circumferential edge of the stamp-carrying body, an elastic tongue, which is provided on the cover or on the outer housing, and a locking link which is provided on the outer housing or the cover, wherein the tongue and the locking link engage with each other when the stamp-carrying body is thrust back against the spring load force, and following the locking hold the stamp-carrying body in its retracted position.
Disadvantageous here is that with a holder of this type on the outer surface of the upper part a visual locking ink or tongue has to be arranged, which impairs the appearance of the stamp. At the same time, such a protrusion or edge also constitutes a corresponding risk of injury.
It is therefore the object of the invention to create a stamp with replaceable stamp pad, wherein the replacement of the stamp pad requires fewer handling steps by the user and the operating comfort for replacing a stamp pad s increased and the risk of contamination is greatly reduced. A further object of the invention lies in creating a stamp pad, wherein downward compatibility, that is use of the stamp pad in older stamps is ensured. Another object of the invention also lies in guaranteeing safe transport of the stamp.
The objects of the invention for a stamp pad are solved in that over at least a pert region of a lateral surface of the carrying device a surface running at an angle is arranged, on which the means for fixing in a stamp is positioned.
Here it is advantageous that as a result horizontal and vertical force effects are made possible, as a result of which the stamp pad is accurately held in position. More preferably through the additional action of the horizontal force it is achieved that in the rest position of the stamp, in which the printing plate presses against the stamp pad, the stamp pad can no longer yield horizontally, so that it is always ensured that the printing plate snugly bears on the stamp pad and is able to take up sufficient ink. Exact positioning of the stamp pad becomes ever more important through the use of multi-colour stamp pads, since through the necessary separation of the individual ink pads the position has to be maintained exactly, so that sufficient and correct ink reaches the printing plate. If such a stamp pad is displaced, it can happen that one or a plurality of letters or part regions of the letters come to bear on a separating wall arranged in the stamp pad and thus no ink can be taken up in this region of the printing plate. Through this positioning, deformation of the side walls of the pad holder will no longer occur.
Advantageous is a design wherein the means is formed through an indentation corresponding to a protrusion arranged in a stamp, since simpler and cost-effective fixing and positioning is created as a result.
With a further development, wherein the means is formed through at least one protrusion, cost-effective manufacture is again achieved.
However, it is also advantageous that the surface of angular orientation is formed at an angle of preferably 45° to a base plate of the carrying device, since as a result the optimal force distribution of the acting horizontal and vertical force for fixing and positioning is achieved.
Furthermore, the objects of the invention for a stamp pad are solved in that on the lateral surface of the carrying device a handle element each for the lateral secure holding and pulling out of the carrying device from a stamp formed of a plurality of parts displaceable within one another is arranged, wherein the handle elements are designed for insertion in a clearance of a lower part of the stamp and said handle elements do not protrude over the outer surface of the lower part, so that an upper part of the stamp is displaceable with the handle elements inserted in the lower part via the clearance.
Advantageous with the lateral positioning of the handle elements is that the user automatically exerts pressure on both opposite handle elements via the two fingers upon removal, and thus the stamp pad can be held securely by pressing the fingers together, so that said stamp pad can be simply and comfortably removed without coming in contact with the stamp ink.
With a further development, wherein the handle elements are so arranged that these protrude over a lateral surface of the carrying device for the secure lateral holding of the carrying device, it is achieved in an advantageous manner that through the protruding handle elements safe and secure handling is made possible. It also serves to achieve that with the stamp pad inserted it is easier to grasp by the user.
Also advantageous however is a design wherein the handle elements are unitarily formed with the carrying device or fastened to the carrying device via fastening means, as a result of which cost-effective unitary manufacture is created and on the other hand the handle elements are equipped removeably, so that the stamp pad can be used in older stamps without handle elements. Therefore only one kind of stamp pads have to be produced for different stamps.
The objects however are also solved through a stamp wherein the lower part for receiving and fixing a stamp pad are designed as described herein.
It is advantageous here that through the arrangement of the handle elements on the lateral surfaces a new type of removal method for self-inking stamps was created, wherein the stamp pad now has to be laterally gripped with at least two fingers. It is thus prevented that the user gets into the region of the pad saturated with ink, which with the prior art is frequently the case through puling out at the front or longitudinal surface of the stamp pad, since the user for improved grip frequently grasped the pads. A further advantage lies in that through the special arrangement of the means for fastening the stamp pad the stamp pad is now exactly positioned, since both a vertical as well as a horizontal force is exerted on the stamp pad. Because of this, use of a multi-colour stamp pad is also possible without problems.
With a design, wherein in the shaft or at least over a part region of a lateral surface a surface running at an angle is arranged on which a means for fixing a slid-in stamp pad is positioned, it is an advantage that exact positioning of a slid-in stamp pad is achieved, since a horizontal and a vertical force are exerted simultaneously, so that the stamp pad can no longer be displaced from the abutting stamp plate.
Also advantageous is a design, wherein in the shaft of the lower part on two lateral surfaces clearances for inserting a handle element of a stamp pad and for the lateral secure gripping and pulling out of the stamp pad are arranged, since improved handling when replacing a stamp pad is achieved as a result.
However, it is also advantageous that the lower part is formed of a plurality of parts, wherein a part in the region of a contact surface is designed transparently, since the user is able to look into the interior region of the stamp as a result, thus making possible better positioning of the stamp print.
Advantageous is a design wherein in the region of the contact surface of the lower part positioning protrusions are arranged so that the user is able to optimally position the stamp print.
With a design, wherein the upper part is formed of at least two parts, wherein one part is designed as decoration plate, it is advantageously achieved that during the assembly the decoration plate is separated from the upper part and thus the upper part can be easily fitted over the lower part.
These objects of the invention are solved through a stamp as described herein.
The objects are particularly solved in that the upper part encloses the lower past cap-like, wherein in the starting position a lower edge of the upper part runs below the opening in the lower part and that the upper part comprises a window associated with the opening, wherein in the starting position the window is located relative to the opening in the lower part in a position that is located higher than the opening, so that the opening is at least partially covered. Through this design, the carrying device is partially covered by a section of the front wall of the upper part and thus reliably held in position. Thus unintentional removal or falling out of the carrying device is prevented in the rest position of the stamp.
A further development according to which the window in the upper part extends over a width of a front wall and continues over a depth in side walls of the upper part has the advantage that access to the carrying device via the side walls is possible in a simple manner in that the carrying device is gripped laterally.
In order to hold the upper part in the position required for changing the carrying device, a further development according to which a lock is arranged on the upper part and a stop on the lower part, wherein the lock can be brought into engagement with the stop for fixing the window in a position orientated relative to the opening. The upper pert is pressed down by the required distance and the lock activated then, as a result of which the upper part remains in this position. After completion of the replacement process the lock is released and the upper pert returns into its rest position.
A further development can also consist in that the handles comprise an extension parallel to the insertion direction which corresponds to a depth of the opening in the lower part.
A further development according to which facing sides of the two handles are connected with the carrying device through engagement connections on narrow sides of the carrying device has the advantage that the lamp can be subsequently fastened to a universal carrying device in order to customize the latter for a specific stamp. An engagement connection particularly makes possible an arrangement of the clamp on the carrying device without additional connecting means being required for this purpose. This is also advantageous since the clamp in turn can be removed from the carrying device.
A further development of the clamp is additionally characterized in that on facing sides of the two handles a tooth profile and on the shorter narrow sides of the carrying device complementary to the tooth profiles, tooth profiles are formed. Thus, a positive connection of clamp and carrying device is guaranteed. In particular, good force transmission from the handles to the carrying device is additionally ensured when it is pulled out of the stamp and thus the risk of involuntary releasing of the clamp is prevented, while arbitrary releasing of the clamp is still possible.
Another further development consists in that the carrying device is formed with handles unitarily moulded on to its short narrow sides.
For strengthening the connecting seat between carrying device and clamp a further development is advantageous according to which the two handles in the direction of the adjacent long narrow side of the carrying device comprise a guide profile, which engages in a complementarily designed guide profile of the carrying device. Through this further development fastening of the handles via two adjoining narrow sides is achieved, which is advantageous for a reliable hold. In particular, such a further development is advantageous in that a clamp can also be fastened to the carrying device wherein the web connecting the two handles is not present or has insufficient mechanical stability in order to conned the handles adequately stable with the carrying device merely through fixing to or on the tooth profiles.
According to a further development the edge between bottom and short narrow side of the carrying device are designed as chamfer, which has the advantage that through a corresponding chamfer of complementary design the receiving device or the drawer faulty insertion of the carrying device becomes impossible. Particularly with a view to multi-colour stamp pads this has the additional special advantage that it can thus be ensured that the correct colour assignment to the stamp plate is also provided. For example, the two chamfers can have a different dimension for this purpose so that only correct insertion is possible.
For fixing the carrying device in the drawer or in the receiving device the chamfer can comprise an engagement position in which a suitably complementary catch of the receiving device or the drawer engages. Likewise, the chamfer can have a catch which engages into a complementary engagement position. This further development has the advantage that through the engaging the carrying device is held in its relative position and this engagement also provides clearly sensible feedback to the user when the carrying device is correctly aligned.
The objects of the invention are independently solved also in that the receiving device comprises means for reducing the contact pressure and for eliminating the contact between the stamp plate and the stamp pad. Through these means it is ensured that when changing the carrying device the contact pressure of the stamp plate against the stamp pad is reduced to the extent that removal of the carrying device largely subject to elimination of the friction between the two parts is achieved. According to a configuration of the stamp it is provided that removing the carrying device with the stamp pad is possible through a single manipulative action without for example having to bring the upper part into a suitable relative position. The means now ensures that the contact between stamp pad and stamp plate is cancelled, before a relative movement of stamp pad and stamp plate occurs. Through this configuration incorrect use is also largely avoided since the carrying device cannot be removed without activating the receiving device and thus the means beforehand so that the contact between stamp plate and stamp pad is cancelled.
According to a further development the means of the receiving device comprise a drawer that is displaceable in the shaft transversely to the vertical direction, i.e. according to a pushing-out direction, wherein the carrying device is displaceably held on the drawer corresponding to the pushing-out direction or a pushing-in direction. Through the design of a drawer a separation between function and service part is advantageously achieved. The drawer is a function part of the stamp and receives a replaceable consumption part, the carrying device.
A further development according to which the drawer is designed with an obliquely orientated ramp which is inclined with respect to the stamp pad and with respect to the pushing-in direction has the advantage that facilitated insertion of the carrying device in the drawer is achieved.
However, it is also advantageous with such a stamp that the operator has easy access to the drawer and that it can be easily gripped through the handles. The accurately fitted termination furthermore ensures that the movement of the upper part relative to the lower part can take place unhindered so that in particular the risk of getting wedged in during the movement of the upper part relative to the lower part is diminished.
The further development according to which the means of the receiving device comprise a pad lifter and a pusher which are movement-coupled with each other, wherein the stamp lifter is guided in the lower part displaceably parallel to the vertical direction by an adjusting travel, and wherein the pusher is displaceable in the shalt transversely to the vertical direction, that is corresponding to a pushing-out direction, has the advantage that by means of the pad lifter a defined movement of the stamp pad takes place and it is thus ensured that pad and stamp plate are separated or at least the pressing-on forces are largely removed before the carrying device is pulled out of the shaft. Thus this further development in turn is a part of the means for reducing the pressing-n pressure and for eliminating the contact between the stamp plate and the stamp pad.
In addition, the objects of the invention for a transport clamp are also solved in that on a bottom plate at least one tongue with a locking element arranged thereon is arranged, wherein the locking element establishes an engagement connection with the lower part through a window of the upper part.
Here it is advantageous that this does not present any visual impairment on the outer surface of the stamp since the engagement connection is made with the lower part which is pushed into the upper part. Thus, all protrusions, depressions etc. on the upper part required from the prior art can be omitted.
To better understand the invention, it is explained in more detail by means of the following Figures.
It shows each greatly simplified in schematic representation:
By way of introduction be it recorded that in the various embodiments described same parts are provided with same reference characters or same component designations, wherein the disclosures contained in the entire description can be transferred accordingly to same parts with same reference characters or same component designations. The position specifications selected in the description such as top, bottom, lateral etc. relate to the directly described and represented figure and have to be transferred to the new position accordingly upon a position change. In addition, individual features or feature combinations from the various exemplary embodiments shown and described can represent by themselves solutions which are independent, inventive or in accordance with the invention.
All details regarding value ranges in the concrete description are to be understood in that these comprise any and all part ranges there from, e.g. the statement 1 to 10 are to be understood in that all part ranges starting from the lower limit 1 and the upper limit 10 are included, that is al part ranges start with a lower limit of 1 or greeter and end with an upper limit of 10 or smaller, e.g. 1 to 1.7, or 3.2 to 8.1 or 5.5 to 10.
Further Development: Link Guide
The position of the printing plate carrier 4 or the stamp plate 5 shown in
The carrying device 11 jointly with the stamp pad 10 forms a replaceable unit. To this end, a shaft 12 is formed in the upper marginal region of the lower part 3 in which the carrying device 11 with the stamp pad 10 is inserted. The shaft 12 is preferably designed as a break-through which extends transversely to the longitudinal extension of the lower part 3 or transversely to the actuation direction of the stamp 1 according to the vertical guide 7. To arrange or position the carrying device 11 with the stamp 10 in the shaft 12 in a position contacting the stamp plate 5 the carrying device 11 is held on a drawer 13. According to the situation shown, wherein the stamp plate 5 from the bottom bears against and is pressed against the freely accessible side of the stamp pad 10 facing down, both the box-like carrying device 11 as well as the drawer 13 are arranged in the shaft quasi “upside down”.
The lower part 3 of the stamp 1 thus constitutes a housing-like receiving device for the carrying device 11 with the stamp pad 10 arranged on the drawer 13. The lower part 3 has a substantially hollow prismatic shape wherein in the face end region located opposite or facing away from the shaft 12 a break-through or an opening is provided, whose cross section at least corresponds to the size or the cross section of the printing plate 5 or the printing plate carrier 4. In the position of the stamp plate 5 for creating a stamp imprint it reaches through the break-through or can even slightly protrude over this break-through.
The operation of the receiving device for the carrying device 11 with the stamp pad 10 in the lower part 3 of the stamp 1 is more clearly illustrated through comparing the representations according to
In a further development a handle 82 can also be arranged on the front side 15 of the drawer 13. As shown in
As is evident from the comparison of the relative positions of the drawer 13 according to
The relative arrangement of the carrying device 11 with the stamp pad 10 and the printing plate carrier 4 with the stamp plate 5 in the lower part 3 as shown in the representation according to
The interaction of the carrying device 11 of the stamp pad 10 with the drawer 13 for inserting or removing from the shaft 12 of the lower part 3 of the stamp 1 is explained in more detail in the following by means of
In that the elongated hole extends in a direction parallel to the pushing-out direction 19 over a length 29, this length 29 is also available to the driver pin 27 as adjusting travel within the elongated hole 26. Because of the friction force connected with the higher pressing-on pressure between the stamp plate 5 and the stamp pad 10 the carrying device 11 of the stamp pad 10 on removing the drawer 13 from the shaft 12 is thus initially held in its original position (
A special advantage with the described solution of the stamp 1 is that the removing of the carrying device 11 with the stamp pad 10 is substantially simplified for the user. Having grasped the drawer 13 by the two handles 16 a single movement—namely puling out the drawer 13 corresponding to the pushing-out direction 19—is sufficient to remove the stamp pad 10 from the stamp 1. No other manipulation on the stamp 1 whatsoever is thus required. Through the limitation of the relative movement of the driver pin 27 of the carrying device 11 in the elongated hoe 26 of the driver strap 25 it is additionally ensured that the carrying device 11 with the stamp pad 10 cannot fall to the ground in an uncontrolled manner. The usually high contamination risk when changing stamp pads 10 can thus also be reduced substantially.
On both of their sides the base plate 14 of the drawer 13 is followed by a side wall 34 standing parallel to the pushing-out or pushing-in direction 19, 20 and perpendicularly to the base plate 14. The base plate 14 and the two side walls 34 thus form a U-shaped encasement of the carrying device 11 of the stamp pad 10. The side walls 34 facing away from the base plate 14 in a downward direction have a limitation in form of an obliquely orientated ramp 35. The ramp 35 is orientated obliquely sloping downwards with respect to the pushing-in direction 20 and otherwise so dimensioned that it is in engagement with the axle pin 6 of the printing plate carrier 4. In the position of the drawer 13 fully pushed into the shaft 12 (as shown in
On pulling the drawer 13 out of the lower part 3 of the stamp 1 the carrying device 11 initially remains in a position held back in the lower part 3 because of the back pressure of the stamp plate 5 against the stamp pad 10 or because of the adhesive friction. Through the movement of the drawer 13 along the pushing-out direction 19 the contact pressure between the stamp plate 5 and the stamp pad 10 is reduced on the one hand because of the action of the ramp 35 on the axle pin 6 of the printing plate carrier 4 and on the other hand the driver lug 36 having covered the distance of the length 39 in the clearance 38 cones into engagement with the stop 40 of the carrying device 11. With progressing movement of the drawer 13 along the pushing-out direction 19 the carrying device 11 is then also puled out further.
With progressing puling-out of the drawer 13 the springs 31 (
For inserting a new carrying device 11 of a stamp pad 10 the drawer 13 is initially puled out of the shaft 12 in the direction of the pushing-out direction 19, wherein the printing plate carrier 4 through displacement of the axle pins 6 in the vertical guide 7 is pushed downward. In this pulled-out position of the drawer 13 the carrying device 11 is then pushed into the drawer 13 along the pushing-in direction 20 until the stop 40 of the carrying device 11 comes to bear against the driver lug 36 of the drawer 13. Here, the carrying device 11 is located n position pushed further into the shaft 12 relative to the drawer 13 then would correspond to the front side 15 of the drawer 13. Through further pushing-in of the drawer 13 into the shaft 12 of the lower part 3 the carrying device 11 of the stamp pad 10 then reaches its working position located above the stamp plate 5 of the printing plate carrier 4 and in the process is subjected to the pressing-on pressure of the stamp plate 5 once the upward movement of the axle pin 6 of the printing plate carrier 4 in the vertical guide 7 is again released by the ramps 35 of the drawer 13.
The pad lifter 41 on the one hand forms a shaft-like receptacle 102 and guideway for the carrying device 11 of the stamp pad 10 that can be inserted and pushed out from there.
On the other hand, the pad lifter 41 is designed to bring about a vertical displacement by an adjusting travel 43 parallel with respect to the vertical guide 7 relative to the lower part 3 of the stamp 1. To this end, the pad lifter 41 is adjustably guided in the lower part 3 of the stamp 1 in vertical direction.
With the carrying device 11 according to this exemplary embodiment it is provided that the transitions from the bottom 37 to the shorter narrow sides of the carrying device 11 are each formed by a chamfer 101 orientated parallel to the pushing-out or pushing-in direction 19, 20. The shaft-like receptacle 102 and guideway in the pad lifter 41 are also formed corresponding to the chamfer 101 on the carrying device 11. This means the receptacle 102 for the carrying device 11 in its upper lateral marginal regions comprises an obliquely orientated inner chamfer 103. The inclination as well as the size of the inner chamfer 103 and the chamfer 101 are selected corresponding to each other. The amount of the angle of the inclination of the chamfer 101 as well as of the inner chamfer 103 is preferentially 45°. A chamfer width 104 of the inner chamfer 103 preferentially has a value between 10% and 70% of a height 105 of the receptacle 102. Providing the inner chamfer 103 of the receptacle 102 in the pad lifter 41 and the chamfer 101 on the carrying device 11 has the advantage compared with a carrying device 11 with rectangular cross section that faults during insertion of a carrying device 11 to be replaced are prevented. For the carrying device 11 can thus only be pushed—functionally correct—into the receptacle 102 with the stamp pad 10 facing down. A further restriction of the possibilities for sliding the carrying device 11 into the receptacle 102 of the pad lifter 41 is also offered by an alternative embodiment, wherein an inner chamfer 103 and also a chamfer 101 are provided on one side of the carrying device 11 respectively. Further alternative exemplary embodiments of the carrying device 11 or the receptacle 102 could be the choice of inclination angles relative to each other or different chamfer widths 104 on the two sides of the chamfer 101 or the inner chamfer 103. A further advantage of the chamfer 101 of the carrying device 11 consists in the inherent stability of the carrying device 11 increased thus. In particular, the two corresponding chamfers 101, 103 can also have other geometrical shapes. In addition to the bevel shown radii and/or polygonal drafts are also conceivable in order to achieve a preferably simple and more preferably unambiguous insertion of the carrying device and a low jamming tendency. More preferably the chamfer 101 can for example comprise a rise on the carrying device 11 so that through the sliding-in 20 of the carrying device automatic alignment of the carrying device 11 relative to the receptacle 102 is achieved. In addition, improved vertical support of the carrying device 11 on the side wall of the pad liter or the lower part can be achieved with the chamfer.
The adjustment of the pad lifter 41 jointly with the carrying device 11 of the stamp pad 10 is brought about through a pusher 43 likewise jointly arranged in the shaft 12 of the lower part 3, which to this end is engaged with ink paths 44 of the pad lifter 41. As will be described in more detail in the following by means of
The pad lifter 41 is formed through two side walls 55 whose lower edges facing the printing plate carrier 4 are connected through a basic tame 56 bordering the stamp pad 10. In the region of the stamp lifter 41 facing the front wall 49 of the lower part 3 of the stamp 1 the two side wall 55 of the stamp lifter 41 are connected with each other through a web 57, which simultaneously forms the upper limit for the shaft-like receptacle 102 or guideway for the carrying device 11 of the stamp pad 10. The web 57 is arranged in such a manner or the side walls 55 of the pad lifter 41 are designed in such a manner that the side walls 55 protrude the web 57 upwards in vertical direction. In this protruding region of the side walls 55 the already described ink paths 44 are formed in the side walls 55. The base plate 46 of the pusher 43 substantially extends between these protruding regions of the side walls 55 of the stamp lifter 41. In the region of the base plate 46 fading the front wall 49 the handles 45 of the pusher 43 are arranged on a lateral expansion of the base plate 46, wherein the handles 45 laterally enclose the side walls 55 of the stamp lifter 41. The regions of the side walls 55 protruding the web 57 to this end are designed shorter in accordance with the lateral expansions of the base plate 46.
On the side walls 55 of the pad lifter 41 there is a sliding body 58 each which is guided in a guide slot 59 formed in the corresponding side wall of the lower part 3 of the stamp 1. The guide slots 59 each form a guide way of a linear guide which is orientated parallel to the vertical guide 7 for the axle pins 6 of the printing plate carrier 4. The siding body 58 according to this exemplary embodiment has the shape of an elongated cuboid and is displaceable in the guide groove 59 parallel to its longitudinal extension. In an end region facing away from the printing plate carrier 4 the siding body 58 comprises holding elements in form of laterally arranged engagement depressions 60. On the other side, a spring dip 61 with spring-plastic laterally adjustable catches 62 is arranged in each of the side walls of the lower part 3 of the stamp 1 in alignment with the guide groove 59. The spring clips 61 are positioned on and fastened to the lower part 3 in such a manner that in the position of the pad lifter 41 lifted off the printing plate carrier 4 the catches 62 of the spring dip 61 engage in the engagement depressions 60 of the sliding body 61 and the pad lifter 41 is thus held in this position.
The link path 44 formed in the side walls 55 of the pad lifter 41 comprises a first path section 63 that is located higher and orientated parallel to the pushing-out direction 19, a path section 64 running obliquely downwards and again a third path section 65 running parallel to the pushing-out direction 19. A movement of the driver pins 48 from the first path section 63 via the inclined second path section 64 into the third path section 65 that occurs when pulling out the pusher 43 thus brings about a displacement of the pad lifter 41 with the carrying device 11 of the stamp pad 10 upwards in vertical direction. Thus the carrying device 11 is lifted from the printing plate carrier 4 or the stamp plate 5 in vertical direction by the adjusting travel 42 and thus freed of the friction resistance acting between the stamp plate 5 and the stamp pad 10.
The following
The side walls 8 of the cap-like handle or upper part 2 of the stamp 1 as well as a front wall 69 of the upper part 2 have a lower edge 70 or 71 which in the position according to
For changing the pad the upper part 2 has to be aligned relative to the lower part 3 so that the window 72 of the upper part becomes congruent with the opening 17 of the lower part. Since for the sake of compact construction of the stamp 1 the height 74 of the window 72 is preferably only slightly greater than the height 68 of the opening 17, this orientation requires some manipulation effort under certain conditions, particularly for operators without practice who perform a pad change only very rarely. In a further development the bolt 76 can therefore have a guide profile 120 which slides along or down a corresponding stop 76 of the lower part 3 as is shown in
For changing the carrying device the bolt 75 is displaced 121 laterally, as a result of which the stop 76 comes in contact with the rising path section 122 and thus the upper part 2 is moved downwards relative to the lower part 3. At the end of the travel 123 of the path section 122 the stop 76 reaches the engagement position 125 of the guide profile after crossing the apex point of the path section, as a result of which the position of the upper part is held relative to the lower part, more preferably the window 72 of the upper part now lies over the opening 17 of the lower part, as a result of which the carrying device can be removed. Having carried out the exchange the bolt is moved back into the starting position or moved further on in accordance with the previous movement direction, as a result of which the upper part is again moved upwards into its starting position since the stop 76 now slides down on a descending path section 122.
Since for aligning window 72 and opening 17 relative to each other a relative adjustment between the upper part 2 relative to the lower part 3 is initially required, which simultaneously because of the movement coupling between the upper part 2 and the printing plate carrier 4 via the axle pins 6 of the latter brings about lowering of the printing plate carrier 4 in the direction of the vertical guide 7, the stamp pad 10 is relieved of the pressing-on pressure of the stamp plate 5 otherwise acting in the basic position of the stamp 1 and these are lifted apart by a distance 79 (
Before inserting the carrying device 11 in the stamp 1 according to
For a stamp 1, wherein the carrying device 11 is inserted in a drawer 13, or a stamp 1 according to a design shown in
When changing the stamp pad with a stamp 1 according to
To facilitate sliding-in the second ramp section 113 of the guide profile 110 of the carrying device 11 can have a minor inclination. In contrast with this, preferably fast separation of stamp plate 5 and stamp pad 10 is desirable during pushing out so that a minor displacement of the carrying device 11 in pushing-out direction 20 is sufficient for separating stamp plate and stamp pad, as a result of which the first ramp section 112 will have a preferably large inclination.
To simplify the pad change the rear wall 50 of the lower part 3 also comprises an opening 17 in a further development, wherein the two openings 17 of identical shape are located opposite each other in the front and rear walls and thus form a continuous shaft 12. This design more preferably has the advantage that a pad change can be performed from both sides of the stamp 1. For example by inserting a new carrying device the inserted carrying device can be pushed out without additional manipulation operations being necessary for this purpose. In the pushed-in position the carrying device is held in position through the operationally connected or engaged orientation of the guide profiles of the carrying device and the printing plate, which more preferably prevents displacement of the carrying device due to the back pressure through the ramps 113, 115 aligned with each other.
The exemplary embodiments show possible embodiment versions of the stamp 1, wherein it must be mentioned at this point that the invention is not restricted to the specifically shown embodiment version of said invention, but rather that diverse combinations of the individual embodiment versions are possible and this variation possibility because of the teaching to technical action through the concrete invention is within the capability of the person skilled in the art of this technical area in other words, all conceivable embodiment versions that are possible by combining individual details of the embodiment version shown and described are included in the scope of protection.
In
The dimensioning of the stamp pad 130 is preferably designed in such a manner that these can be used in self-inking stamps 1 of the same design which are already included in the prior art, as for example described in the introduction of the description. With the solution according to the invention the stamp pad 130 is designed for a self-inking stamp 1, which will be described in more detail in the following, wherein on the lateral surfaces 137 of the carrying device 11 a handle element 138 each for the lateral holding and puling out of the carrying device 11 or the stamp pad 130 from a stamp 1 formed of a plurality of parts displaceable within one another is arranged, wherein the handle elements 138 are designed for insertion in a clearance 139 of a lower part 3 of the stamp 1 and these do not protrude the outer surface 140 of the lower part 3, so that an upper part 2 of the stamp 1 can be displaced via the clearance 139 with the handle elements 138 inserted in the lower part 3.
Preferably the handle elements 138 are fixed on the lateral surfaces 137 via a fastening means 141, wherein for this purpose for example on the lateral surfaces 137 at least one groove 142 is arranged and corresponding there to, at least one protrusion 143 on the handle element 138. The grooves 142 on the lateral surfaces 137 are preferably blocked in one direction so that the protrusions 143 of the handle element 138 are only pushed in a certain direction and only as far as to the blockage in the grooves 142, as is evident in
The handle elements 138 are designed in such a manner that they protrude the carrying device 11 or the housing 131 on the lateral surfaces 137 and on the front, more preferably the longitudinal surface 136, end flush with the latter. Corresponding to this, clearances 139 are required in the lower part 3 of the stamp 1, as will be described in more detail in the following. The protruding handle elements 138 and the lower part 3, more preferably the clearance 139 in the lower part 3, are matched to one another in such a manner that with inserted stamp pad 130 the outer surfaces 140 on the lower part 3 of the stamp 1 end approximately flush with the front of the carrying device 11 and the handle elements 138, so that during a stamping operation the upper part 2, as known from the prior art, can be pushed over the lower part 3.
For improved removal of the carrying device 11 or the stamp pad 130 notches, protrusions, grooves or the like are arranged on the handle elements 138, more preferably on their surface, to prevent slipping off when pulled from the stamp 1. It is also possible that a width 144 of the handle elements 138 protrudes a width 145 of the lateral surface 137 or the housing 131 of the carrying device 11 so that a larger handling area is crested for the user.
Through the arrangement of removable handle elements it is achieved that when using the stamp pad 131 in other older types of a self-inking stamp 1 these can be removed and the stamp pad thus inserted, as a result of which downward compatibility is advantageously achieved. Obviously it is also possible that only one handle element 138 is arranged, which extends from a lateral surface 137 over a longitudinal surface 136 to the additional lateral surface 137 orientated in parallel, so that in turn lateral gripping of the stamp pad 131 with two fingers is possible. The carrying device 11 can also be designed as one part with the handle element 138, that is as one-part injection moulded component, wherein such a design does not have any downward compatibility and the handle elements 138 are not removable.
Substantial with the design having laterally arranged handle elements 138 is that these in the inserted state do not protrude the outer surface 140 of the lower part 3, so that sliding into each other of the lower and upper parts 3 and 2, that is a stamping operation, is possible.
In addition to this, means, known from the prior art, in form of grooves 133 and/or elevations 134 are arranged on the lateral surface 137 of the carrying device 11 for fixing in a stamp 1. This arrangement on the lateral surfaces 137 allows fixing the stamp pad 130 in older self-inking stamps 1 that form part of the prior art, as a result of which a downward compatibility is present. Disadvantageous with such a fastening system arranged on the lateral surfaces 137 is that the stamp pad 130 is only fixed in a horizontal plane. To achieve better fixing of the stamp pad 130 in the stamp 1 a surface 146 running at an angle is arranged over at least a pert region of a lateral surface 137 of the carrying device 11, on which a means for fixing in a stamp 1 is positioned. The means in turn is formed through grooves 133 and/or elevations 134 as they are also used in the lateral surfaces 137. Through the angular arrangement it is achieved that a horizontal and vertical force is simultaneously exerted via the protrusion or elevations 134 protruding into the grooves 133. Thus the stamp pad 130 when contacting a printing plate or the stamp plate 5 can no longer be displaced in vertical and horizontal directions. The angle of surface 146 preferably amounts to 45° to the base surface.
It can thus be said that the difference to the stamp pad 130 for self-inking stamps 1 known from the prior art is that the handle elements 138 are arranged on the lateral surfaces 137 and the means for fastening the stamp pad 130 in the stamp 1 now utilize a surface 148 running at an angle, as a result of which pressure generation in horizontal and vertical direction on the housing 131 of the stamp pad 130 is achieved.
In order to be able to insert such a stamp pad 130 it is necessary to suitably design the stamp 1 to accommodate the stamp pad 130 as shown in
In order for the previously described stamp pad 130 to be useable it is necessary that the lower part 3 is designed for receiving and fixing the stamp pad 130. To this end, a surface 148 running at an angle is arranged over at least a part region of a lateral surface 147 of the lower part 3, on which a means, more preferably elevations 149 and/or grooves 150 for fixing an inserted stamp pad 130 is positioned. The means in this case are designed corresponding to the means, more preferably the elevations 133 and grooves 134 on the stamp pad 30, so that when sliding in the stamp pad 130 it is protected from falling out and simultaneously held in the exact position since a vertical and horizontal force on the angular surface 146 of the stamp pad 130 is exerted by the means, more preferably the elevations 134, 149 and grooves 133, 150. Because of this, it is also prevented that the stamp plate 5 in rest position can be displaced through non-positive contact on the stamp pad 130 in horizontal direction. By designing the angle for the angular surface 146, 148 in the shaft 12 and on the stamp pod 130 the action of force can be additionally influenced, that is that with a flatter angle morn force is exerted in horizontal direction, whereas a steeper angle the vertical force gains the upper hand. In principle it can be mentioned here that the angular design of the surface 146, 148 in the shat 12 as well as on the stamp pad 130 need not run over the entire lateral surface 137 and 147. It is sufficient if merely a port region is designed thus. In this case it is however necessary that the starting region of the lateral surface 137 and 147 is always designed in an angular manner so that the stamp pad 130 can be pushed in and does not strike the angular surface 137 and 147 with the remaining part regions configured at a right angle.
However in order for the stamp pad 130 to be useable with the laterally arranged handle elements 138 the clearances 139 for inserting the handle element 138 of the stamp pad 130 and for the lateral gripping and pulling out of the stamp pad 130 are arranged in the shaft 12 of the lower part 3 or on the lower part 3 proper on two lateral surfaces 147. As is shown, the clearances 139 are arranged in the side wall or lateral surface 147 of the lower part 3. The depth or length and width of the clearance 139 correspond to the size of the handle elements 138, so that these can be securely inserted in the clearance 139.
It is substantial here that the upper part 2 is designed corresponding to the clearance 139 in the lower part 3, i.e. that the upper part 2 at least in a part region comprises an opening or clearance 152 on the side walls 151, so that in the removable position (
With the new type of stamp 1 according to the invention with corresponding stamp pad 130 a stamp pod replacement is carried out in such a manner that in the rest position (
In addition, the lower part 3 can be designed in multiple parts, wherein different materials can be employed for the various parts 155, 156, more preferably hard plastic for the shape retention—part 155—soft plastic—part 156—for the support and positioning. Here, a part 156 is preferably designed transparently and is used in form of a window. This part 158 is used in the region of the contact surface so that for a stamping operation the user can look through the transparent part 156 and thus exactly position the stamp 1, since the user is able to look into the interior region of the stamp 1. To this and it is possible that positioning protrusions 157 are arranged in the region of the contact surface of the lower part 3.
To make possible a more simple assembly of the stamp 1 it is advantageous if the upper part 2 is likewise designed in multiple parts, as shown in
In order to make a visual adjustment of the appearance or the colour scheme different decorative plates 158 can be used. In addition, a decorative plate 159 can likewise be used on the side walls 151 which are simply pressed on to the side wall 151 via fastening means, more preferably a snap-on connection. A further decorative plate 160 can be fastened on the upper part 2, wherein this decorative plate 160 is designed transparently. Thus the user can insert a stamp imprint under the decorative plate 160 so that the user can identify which stamp 1 and stamp imprint he has in hand.
In order to make possible engagement of the upper part 2 with the lower part 3 a locking system is coupled with the sliding lever 161, which is formed in a simple form through protrusions 162 and notches 163. With the exemplary embodiment shown the sliding lever 101 is provided with a plurality of protrusions 162 which via slots which are not shown protrude into the interior of the upper part 2. Two notches 163 are provided on the lower part 3 in which with corresponding position of the sliding lever 181 the protrusions 162 engage thus interlocking the two parts.
In
To facilitate recognising the positions it is possible that the individual positions are marked on the stamp 1. To this end, markings can be simply applied or stamped in. This is particularly advantageous if a plurality of positions for fixing are possible, so that the user can more quickly find the appropriate position. To this end it is possible for example that a suitable view window is provided on the upper part 2 so that the user can see the markings on the lower part 3.
It is substantial here that a stamp 1 with a hinged printing plate carrier 4 with a stamp plate 5 and with a receiving device for a replaceable carrying device 11 of a stamp pad 130 is used, wherein the printing plate carrier 4 and the receiving device are arranged in a lower part 3, and wherein the printing plate carrier 4 is adjustable in vertical direction from a starting position in which it contacts the stamp pad 130 with a pressing-on pressure into a position for generating a stamp imprint, and wherein the receiving device is formed by a shaft 12 running transversely to the vertical direction, wherein a locking system 161 is arranged for fixing the upper part 2 and the lower part 3 relative to each other, by means of which at least two positions can be fixed or locked. With such a solution it is achieved in an advantageous manner that in the locking situation the force application point of the lock in the position of the stamp pad change and in the transport or stamping position is always on the spring bottom on the housing 131, that is that the force of the spring acting on the housing bottom thus bringing about bending through of the latter, through which the locking knobbles, more preferably the protrusions 162, are counteracted in this region and bonding-through is thus minimized.
Furthermore, a transport clamp 104 for a self-inking stamp 1 is shown in
To this end, the transport clamp 164 has now been designed in such a manner that, other than known from the prior art the clamp is not brought in connection with the upper part but the latter engages in the lower part 3. Here, the transport clamp 164 is formed from a base plate 165 from which on the longitudinal sides protrudes a tongue 166, 167 each in the same direction, wherein a tongue 106 is provided with a locking element 108.
The locking element 168 for example is designed in such a manner that in the end region it is slightly bent in the direction of the additional tongue 167 and at the end an engagement lug 169 extending in the direction of the additional tongue 167 for engagement in an engagement depression 170 arranged in the lower part 3 is arranged. In order to be able to release the tongue 167 more easily from the engagement, an engagement lever 171 is additionally provided which on suitable actuation in opposite direction to the engagement lug 169, releases the latter from the engagement impression 170.
It is substantial here that the engagement depression 170 is positioned on the lower part 3 in such a manner that with the stamp 1 pushed together, that is in the stamping position, the engagement depression 170 is positioned within the window 72 so that the tongue 186 with the engagement lug 169 can reach through the window 72 on to the lower part 2 and the engagement lug 160 can thus snap into the engagement depression 170. If alter the snapping-in of the engagement lug 169 in the engagement depression 170 the pressure on the stamp 1 is reduced or removed, the upper part 2 because of the spring arranged therein is moved in the direction of the starting position until t comes to a stop on the tongue 169. The difference to the prior art now is that the holding force for the transport clamp 161 is now no longer exerted on the upper part 2, but on the lower part 3, so that the upper part 2 is freely moveable without the engagement connection of the transport clamp 161 being released.
It can thus be said that the transport clamp 161 is designed for a stamp 1 with a hinged printing plate carrier 4 with a stamp plate 5 and with a receiving device for a replaceable carrying device 11 of a stamp pad 130, wherein the printing plate carrier 4 and the receiving device are arranged in a lower part 3, and wherein the printing plate carrier 4 is adjustable in vertical direction from a starting position in which it contacts the stamp pad 130 with a pressing-on pressure into a position for generating a stamp impression, and wherein the receiving device is at least formed through a shaft 12 running transversely to the vertical direction, wherein on a base plate 165 at least one tongue 166 with a blocking element 168 arranged thereon is arranged, wherein the blocking element 168 establishes an engagement connection with the lower part 3 through a window 72 of the upper part 2.
The advantage of such a solution is that no externally visible protrusions, elevations, depressions etc. for the engagement of the transport clamp 161 are now necessary and thus a visually attractive stamp can be created.
In principle it is pointed out that in the individual exemplary embodiments of
As a matter of form it is pointed out in concluding that to better understand the construction of the stamp 1 the stamp or its components were partially shown not to scale and/or enlarged and/or reduced.
The object forming the basis of the independent inventive solutions can be taken from the description.
Above all, the individual embodiments shown in
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| Number | Date | Country | |
|---|---|---|---|
| Parent | 13147107 | US | |
| Child | 16653356 | US |
