1. Field of the Invention
The present invention relates to a transfer tool including a case member having a head cap which can turn between a close position where a transfer head is covered and an open position where a transfer head is exposed.
2. Background of the Related Art
Conventionally, in a transfer tool in which a transfer tape supplied from a supply reel rotatable around a spindle is wound around a winding reel through a transfer head, a structure in which a refill which holds the supply reel, the transfer head and the winding reel is provided with a head cap which can cover the transfer head is widely used. In the transfer tool having such a structure, there is conceived a structure in which the head cap can be locked at any of the close position where the transfer head is covered and the open position where the transfer head is exposed near the pivot shaft of the head cap (see Japanese Patent Application Laid-open No. 2006-305839 for example).
In the structure described in Japanese Patent Application Laid-open No. 2006-305839, a recess formed in the head cap and a projection provided on a cover are engaged with each other and the head cap is locked only by moving the head cap to the close position or the open position. With such a structure, however, when an operator moves the head cap to a position near the close position or the open position and discontinues moving the head cap thereabout, since the recess and the projection are not engaged with each other, a problem that the head cap moves from a position near the close position toward the open position and the transfer head is exposed after the transfer operation is completed may occur.
The present invention has been accomplished to solve the problem.
That is, the present invention provides a transfer tool in which a transfer tape supplied from a supply reel rotatable around a spindle is wound around a winding reel through a transfer head, comprising a transfer tool body which holds at least the supply reel and the winding reel, the transfer head provided on the transfer tool body, a head cap which is pivotally mounted on the transfer tool body or the transfer head through a pivot shaft portion and which can turn between a close position where the transfer head is covered and an open position where the transfer head is exposed, and an urging mechanism provided near the pivot shaft portion, the urging mechanism elastically capable of urging the head cap, toward the close position when the head cap is located closer to the close position than a dead point provided at only one location near an intermediate portion between the close position and the open position, and toward the open position when the head cap is located closer to the open position than the dead point.
With this structure, when the head cap is located between the close position and the open position, the head cap is reliably urges selectively toward the close position and the open position by the urging mechanism, and the head cap is held in any of the close position and the open position. Therefore, it is possible to avoid a problem that the head cap moves from a position near the close position toward the open position when the transfer tool is not used and the transfer head is exposed, or a problem that the head cap moves from a position near the open position toward the close position when the transfer tool is used and the head cap is suspended toward a transfer face.
As one example of a concrete structure of the urging mechanism, there is one in which the urging mechanism comprises a projection provided on the pivot shaft portion and a cam face provided near a bearing portion engaging with the pivot shaft portion and slidable on the projection, the head cap is urged by elastically deforming a portion of the head cap near the projection or a portion of the transfer tool body provided with the cam face in a state where the projection and the cam face abut against each other. With this structure, when the projection abuts against the cam face, any of the head cap provided with the projection and the bearing portion provided with the cam face elastically retracts.
As one structure for further concretely realizing the urging mechanism, there is one in which the head cap includes a cap body capable of covering a transfer tape passage of the transfer head in the close position, a pair of connecting arms extending from both side edges of the case body, and a pivot shaft portion which is provided on one end of the connecting arm and which is capable of engaging with a bearing portion provided on the cap body, and when the cam face abuts against the projection provided on the pivot shaft portion, the connecting arm is capable of elastically deforming.
As another structure for further concretely realizing the urging mechanism, there is one in which the head cap includes a cap body which is capable of covering a transfer tape passage of the transfer head in the close position, a pair of connecting arms extending from both side edges of the cap body, and a pivot shaft portion provided on one end of the connecting arm and capable of engaging with a bearing portion provided on the cap body, the bearing portion includes a pair of bearing elements which extend from the case body and which are provided at their tip ends with bearing recesses in which the pivot shaft portion can be accommodated, and as a projection provided on the pivot shaft turns, at least one of the bearing elements is capable of elastically deforming in a direction separating away from the other bearing element.
According to the structure of the transfer tool of the present invention, when the head cap is located between the close position and the open position, the head cap is reliably urges selectively toward the close position and the open position by the urging mechanism, and the head cap is held in any of the close position and the open position. Therefore, it is possible to avoid a problem that the head cap moves from a position near the close position toward the open position after the transfer operation is completed and the transfer head is exposed, or a problem that the head cap moves from a position near the open position toward the close position when the transfer tool is used and the head cap is suspended toward a transfer face.
An embodiment of the present invention will be explained with reference to the drawings.
As shown in
Parts constituting the transfer tool A will be explained below. In the following explanation, unless otherwise specified, “front” means a side where the transfer head 4 exists and “back” means a side opposite from the transfer head 4. An example of a transferring object is paste, or a correcting ink coating film or the like for correcting a character or a figure written or printed on a paper sheet or a film which is an object to be transferred.
As described above, the transfer tool body 1 includes the case portion 2 and the refill 3 which is detachably held in the case portion 2. The case portion 2 includes a first case 6, a second case 7 which pairs off with the first case 6, and a hinge 21 which connects the first and second cases 6 and 7 such that they can relatively move between a use position S and an open position O.
Constituent parts of the case portion 2 will be explained in more detail. As shown in
The main wall 61 is provided therein with a supply reel mounting portion 611 for rotatably mounting a supply reel 32 of the refill 3, and a winding reel mounting portion 612 for rotatably supporting a winding reel 33 of the refill 3. The supply reel mounting portion 611 includes a supply reel support portion 611a which can rotate together with the supply reel 32 if the supply reel support portion 611a is inserted into a later-described meshing hole (not shown) of the supply reel 32, and a drive gear 611b which is coaxially mounted on the supply reel support portion 611a through a slide mechanism (not shown). The winding reel mounting portion 612 is integrally formed from the main wall 61 into a substantially cylindrical shape, and the winding reel mounting portion 612 can be inserted into a later-described winding reel mounting hole (not shown) formed in a tip end of the winding reel 33.
The outer wall 62 projects from a portion of the outer edge of the main wall 61 except the front end. The rear end of the outer wall 62 is formed as a hinge corresponding portion 62a to provide the hinge 21 on the rear end of the outer wall 62. An outer peripheral surface of the hinge corresponding portion 62a is continuous with an outer peripheral surface of other portion of the outer wall 62. The transfer head 4 passes through a head-exposing opening and is exposed outside. The head-exposing opening is a portion where the outer wall 62 is not provided.
As shown in
The lid 71 is formed with insertion projections 711 and 712 which can be fitted into supported holes 34x and 34y formed in a support plate 34 at two locations corresponding to centers of the supply reel 32 and the winding reel 33.
To provide the hinge 21 on the rear end of the outer wall 72, the rear end of the outer wall 72 is formed as a hinge corresponding portion 72a. An outer peripheral surface of the hinge corresponding portion 72a is continuous with an outer peripheral surface of the other portion of the outer wall 72.
Front engaging part and rear engaging part are provided between the first case 6 and the second case 7 to realize a reliable engagement between the first and second cases 6 and 7. The front engaging part engages a front engaging recess 62x formed in a front portion of the outer wall 62 of the first case 6 and a front engaging pawl 721 provided on the outer wall 72 of the second case 7 at a location where a position thereof in the longitudinal direction matches with the front engaging recess 62x in the use position S with each other. The rear engaging part engages a rear engaging recess 62y provided at a central portion of the outer wall 62 of the first case 6 in the longitudinal direction and a rear engaging pawl 722 with each other. The rear engaging pawl 722 is provided on a portion of the outer wall 72 of the second case 7 which matches with the rear engaging recess 62y in the use position S in the longitudinal direction. The rear engaging pawl 722 can move between an engaging position where the rear engaging pawl 722 engages with the rear engaging recess 62y and a separating position where the rear engaging pawl 722 is separated from the rear engaging recess 62y. An operating portion 723 is provided near the rear engaging pawl 722. If the operating portion 723 receives an operating force, the rear engaging pawl 722 elastically deforms and moves from the engaging position to the separating position.
On the other hand, the hinge 21 connects the first and second cases 6 and 7 with each other such that the cases can relatively move between the use position S and the open position O as described above. In this embodiment, the hinge 21 is provided inward of the outer edge of the second case 7. More specifically, the hinge 21 is formed by utilizing a shaft member 211 projecting from the second case 7, and a pair of bearings 212 and 212 which are provided on the first case 6 and which pivotally support the shaft member 211 from both sides thereof. An evacuation space SS is provided near the hinge 21 of the first case 6, preferably in front of the bearings 212 and 212 for receiving the second case 7 in the close position Q.
The transfer tool A of the embodiment further includes a transmission mechanism which is provided between the first case 6 and the refill 3 for transmitting rotation of the supply reel 32 to the winding reel 33.
The refill 3 is held between the first case 6 and the second case 7. The refill 3 includes the supply reel 32 which holds an unused transfer tape in a state, the unused transfer tape being wounded on the supply reel 32 in the state, the winding reel 33 around which a used transfer tape film is wound, and a support plate 34 which rotatably supports the supply reel 32 and the winding reel 33 and which integrally holds the transfer head 4.
The transfer head 4 can transfer a transferring object provided on a transfer tape to an object to be transferred. In this embodiment, the transfer head 4 is supported by the refill 3, and the refill 3 and the transfer head 4 are integrally handled.
As shown in
As shown in
As shown in
In addition, a stopping member 9 can be inserted and pulled out between the supply reel 32 and the support plate 34 to prevent the supply reel 32 from rotating when the refill 3 is transported alone. As shown in
As shown in
The head cap 5 is pivotally supported by the first case 6 through the pivot shaft 53. The head cap 5 can turn between the close position P where the head cap 5 can cover a tip end of the transfer head 4 and an open position Q where the tip end of the transfer head 4, i.e., at least the restriction plates 43 and 43 and the transfer roller 44 are exposed.
More specifically, as shown in
An urging mechanism 54 which selectively elastically urges the head cap 5 toward the close position P or the open position Q is provided in the vicinity of the pivot shaft portion 53 of the head cap 5. More specifically, as shown in
As described above, according to the transfer tool A of the embodiment, the transfer tape T supplied from the supply reel rotatable around the spindle is wound around the winding reel 33 through a transfer head. The transfer tool A includes a transfer tool body 1 which holds at least the supply reel 32 and the winding reel 33, the transfer head 4 provided on the transfer tool body 1, concretely, on the refill 3, the head cap 5 which is pivotally mounted on the transfer tool body 1, more specifically, on the case portion 2 through the pivot shaft portion 53, and which can turn between the close position P where the transfer head 4 is covered and the open position Q where the transfer head 4 is exposed, and an urging mechanism 54 provided near the pivot shaft portion 53 capable of elastically urging the head cap 5, toward the close position P when the head cap 5 is located closer to the close position P than the dead point provided at only one location near an intermediate portion between the close position P and the open position Q, and toward the open position Q when the head cap 5 is located closer to the open position Q than the dead point. Thus, when the head cap 5 is located between the close position P and the open position Q, the head cap 5 is reliably urged by the urging mechanism 54 selectively toward the close position P and the open position Q, and the head cap 5 is held in any of the close position P and the open position Q. Therefore, it is possible to avoid a problem that after the transfer operation is completed, the head cap 5 is moved toward the open position Q from a position near the close position P and the transfer head 4 is exposed, and a problem that when the transfer tool A is used, the head cap 5 is moved toward the close position P from a position near the open position Q and the head cap 5 is suspended toward the transfer face.
The urging mechanism 54 comprises a projection 55 provided on the pivot shaft portion 53, and a cam face 6a which is provided near the cap receiver 621 and which can slide with the projection 55. The urging mechanism 54 has such a structure that in a state where the projection 55 and the cam face 6a abut against each other, a portion of the head cap 5 near the projection 55, more specifically the connecting arm 52 is retracted by elastic deformation, and the head cap 5 is urged by the elasticity. Therefore, it is possible to realize the urging mechanism 54 with a simple structure without adding a special part such as a torsion coil spring or the like.
The present invention is not limited to the above-described embodiment.
For example, a structure as will be described with reference to
A head cap A5 in this structure includes a cap body A51 capable of covering a transfer tape passage of the transfer head 4 in the close position P, a pair of connecting arms A52 extending from both side edges of the cap body A51, and a pivot shaft portion A53 which is provided on one end of each of the connecting arms A52 and which can be engaged with the head cap receiver A621 which is a bearing provided on the cap body 1. A projection A55 constituting the urging mechanism A54 is provided near the pivot shaft A53.
The transfer tool body 1 of this structure is provided with the head cap receiver A621 extending outward from the first case 6. The head cap receiver A621 includes a pair of first and second bearing elements A622 and A622 provided at their tip ends with bearing recesses A622X and A623X in which the pivot shaft portion A53 can be accommodated. The first bearing element A622 is provided on a side closer to the first case 6, and the second bearing element A623 is provided on a side further from the first case 6. The bearing recess A623X of the second bearing element A623 constitutes the urging mechanism A54.
The urging mechanism A54 which selectively elastically urges the head cap A5 to one of the close position P and the open position Q is provided near the pivot shaft portion A53 of the head cap A5. In this structure, other portions of the transfer tool A have the same structures as those of the above-described embodiment.
When the head cap A5 is located in the close position P or the open position Q, as shown in
With this structure also, it is possible to realize the urging mechanism A54 with a simple structure without adding a special part such as a torsion coil spring or the like.
Elasticity of the head cap itself or elasticity generated by elastic deformation of the bearing portion of the case may not be utilized. For example, the urging mechanism may have permanent magnets disposed near the tip end of the head cap body, and portions of the case opposed to the head caps located in the close position and the open position may be provided.
A bearing portion pivotally supporting the pivot shaft portion of the head cap may be provided on the transfer head instead of the transfer tool body. That is, the head cap may pivotally be mounted on the transfer head.
In addition, the present invention can be variously be modified within a range not departing from the subject matter of the present invention.
Number | Date | Country | Kind |
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P2007-196636 | Jul 2007 | JP | national |