Patent Grant
7303521
1. Field of the Invention
The present invention relates to a folding apparatus of a rotary press which cuts a printed paper web and is capable of performing a collect run by which cut print paper sheets are superposed and folded and a straight run by which they are folded without being superposed.
2. Description of the Prior Art
Conventionally, in a folding apparatus of a rotary press which includes a cutting cylinder, a folding cylinder and a jaw cylinder and is capable of performing collect run that print paper sheets are wound around the folding cylinder and superposed and straight run that the print paper sheets are folded without being superposed, the collect run and the straight run are switched in accordance with an operation conformation of the collect run or the straight run, e.g., a change in respective operation timings of a pin device and a blade device of the folding cylinder. Further, various improvements have been carried out in order to make it easier to facilitate a switching operation of these devices. Techniques to switch between the collect run and the straight run are disclosed in some patent references (see e.g., Japanese patent application laid-open No. 254468/1986, Japanese patent application laid-open No. 185777/1988 and Japanese patent publication No. 3117256).
A technique disclosed in Japanese patent application laid-open No. 254468/1986 is a technique concerning only an operation conformation of a pin device included in a folding cylinder. However, in a folding apparatus of a rotary press capable of switching between the collect run and the straight run, there is adopted a structure that a pin which is pushed through a leading end side of a print paper sheet provided to a folding cylinder is protruded/retracted from a circumferential surface of the folding cylinder by a pin operation cam (which will be referred to as a pin cam hereinafter). The pin cam is a so-called two-ply pin cam obtained by dividing the pin cam and laminating the divided cams. A plurality of irregularities are provided to each cam, and the number of cam irregularities is changed by varying an attachment position of the two-ply cam with the folding device being paused, thereby changing an operation timing of the pin.
Specifically, the pin device and the blade device are alternately arranged so as to form a phase angle of approximately 60 degrees on a circumference of the folding cylinder having a circumferential length threefold of a cut length of the print paper sheet (which will be referred to as a length of the print paper sheet hereinafter) which is a so-called threefold cylinder, a gear x which is meshed with a folding cylinder gear is provided on one end side of a shaft disposed in parallel with the folding cylinder, and the two-ply cam is integrally provided in the adjacent manner to a gear z which is meshed with a gear y fixed on the other end side of the shaft and rotates around a shaft center on the other end side of the folding cylinder, thereby enabling the rotary driving. The two-ply cam fixed to the gear z can change an attachment phase of the two pin cams in accordance with the collect run or the straight run. It is to be noted that jaw devices can be attached at two positions of a jaw cylinder provided so as to be opposed to the folding cylinder, and a holding plate is operated by a holding cam.
A technique disclosed in Japanese patent application laid-open No. 185777/1988 is a technique concerning only an operation conformation of a blade device included in a folding cylinder. There are provided a thrust blade operation cam (which will be referred to as a blade cam hereinafter) rotatably supported by the folding cylinder, force transmitting means for transmitting a turning force to the blade cam and switching means for allowing or cutting transmission of force between the force transmitting means and the blade cam, thereby enabling switching between the collect run and the straight run without attaching/detaching a holding plate.
Specifically, a cutting cylinder has a circumferential length twofold of a length of the cut print paper sheet, whereas the folding cylinder is set to have a threefold circumferential length. A blade gear having the blade cam integrally attached thereto is rotatably supported by a shaft portion of the folding cylinder. Further, a shaft (which will be referred to as a clutch shaft hereinafter) is provided parallel with the folding cylinder, and a clutch member which can move in an axial direction and which is coupled in a rotating direction is provided to this clutch shaft. A gear which has a connection portion, which can be connected with the clutch member and which is capable of rotating is provided to the clutch shaft, and this gear is meshed with the gear fixed to the shaft end portion of the folding cylinder. Furthermore, a gear which is meshed with the blade gear is provided on the end side of the clutch shaft, and the blade cam can go into a 360-degree roll while the folding cylinder makes a ⅔ rotation when the blade cam is driven by this gear. A fixed fixation member is provided on the frame side, and the fixation member has a connection portion which can be connected with the clutch member at an end portion thereof. The clutch member has a neutral position at which it is connected with neither the connection portion of the gear nor the connection portion of the fixation member. In this neutral position, the clutch shaft can be turned from the outside by a handle when the folding cylinder is stopped, and a phase of the blade cam with respect to the folding cylinder can be adjusted so as to be associated with the collect run or the straight run. That is, when switching to the collect run or the straight run, the folding device is stopped, the clutch shaft is turned at the neutral position by a handle, a phase of the blade cam relative to the folding cylinder is adjusted, and thereafter connection is established. In case of the collect run, the clutch member is moved to the gear side and connected, switching is performed so as to enable rotation of the blade cam with the clutch shaft being capable of turning. In case of the straight run, the clutch member is moved to the fixation member side and connected, and switching is performed so as not to rotate the blade cam with the clutch shaft being prevented from turning.
A technique disclosed in Japanese patent publication No. 3117256 is a technique concerning only an operation conformation of a pin device and a blade device included in a folding cylinder. There are provided: a first rotary cam (rotary pin cam) which is disposed to a frame which is provided on one end side of a folding cylinder and rotatably supports the folding cylinder independently from the folding cylinder, and has a concave portion which carries out an operation of the straight run; a first fixed cam (fixed pin cam) which is adjacent to the rotary cam, and fixed and provided to the frame; a second rotary cam (rotary blade cam) which is disposed to a frame which is provided on the other end side of the folding cylinder and rotatably supports the folding cylinder independently from the folding cylinder, and has a concave portion which carries out an operation of the straight run; and a second fixed cam (fixed blade cam) which is adjacent to the second rotary cam, and fixed and provided to the frame, and this technique further includes a two-point clutch which matches or releases two sets of two-ply cams each consisting of the rotary cam and the fixed cam at any timing of the collecting folding or the straight run. The two-point clutch is provided on a shaft of a cam drive system which drives the two rotary cams, changes a meshing position of the clutch in accordance with a predetermined timing without replacing the cams, and switches between the collect run and the straight run.
The technique disclosed in Japanese patent application laid-open No. 254468/1986 has the following problems to be solved. That is, when switching the operation timing of the pin in case of the collect run or the straight run, it must forcibly perform a troublesome skilled operation that the folding device is stopped, then fixation of the two-ply pin cam integrated with the gear is released, and a phase of the pin cams must be changed in accordance with a pin operation timing of the folding cylinder each time. Additionally, in the folding apparatus, in order to completely perform switching between the collect run and the straight run, the blade device must also perform the switching operation, resulting in a very complicated switching operation.
Further, the technique disclosed in Japanese patent application laid-open No. 185777/1988 has the following problems to be solved. That is, when switching an operation timing of the blade to the collect run or the straight run, it must perform a very troublesome skilled operation that the folding apparatus is stopped, then the clutch member meshed with one gear is manually moved for uncoupling and set at the neutral position, a phase of the blade cam is adjusted with respect to the folding cylinder by turning the clutch shaft by using a handle and thereafter the clutch member is further moved to be meshed with the other gear. Furthermore, in the folding apparatus, in order to completely perform switching between the collect run and the straight run, the operation timing of the pin of the pin device must be individually carried out, resulting in a very complicated switching operation.
Moreover, the technique disclosed in Japanese patent publication No. 3117256 has the following problems to be solved. That is, when switching the operation timing of the pin and the blade to any one of the collect run and the straight run, it must carry out a very troublesome skilled operation that the folding apparatus is stopped, then the two-point clutch provided on the shaft of the cam drive system is moved in the axial direction to cancel the meshed state, the rotary cam is displaced with respect to the fixed cam by turning the shaft until a predetermined timing relationship is obtained, and the two-point clutch is again moved at that position in the axial direction opposite to the former direction for meshing. Additionally, the two-ply cam is provided on each of both sides of the folding cylinder, the shaft driving this is stretched from one frame to the other frame, and hence the structure is very complicated.
It is an object of the present invention to provide a folding apparatus of a rotary press, which can perform switching between collect run and straight run in a simple structure without performing a complicated operation.
The present invention is intended to solve the problems of the prior arts altogether by a structure described in claims.
That is, a folding apparatus of a rotary press includes a cutting cylinder having at least one cutting blade device, a folding cylinder having at least one pin device and the same number of blade device as that of the pin device, and a jaw cylinder having a jaw device, which can cut a printed paper web and perform collect run that print paper sheets are wound around the folding cylinder, superposed and folded and straight run that the print paper sheets are folded without being superposed, and which can switch to either run type and discharge the collect-folded or straight-folded print paper sheets.
The folding apparatus of a rotary press comprising:
a fixed pin cam which is fixed to a frame side, and can protrude/retract an end of a pin of each pin device with respect to an outer periphery of the folding cylinder once per rotation of the folding cylinder so as to perform a straight run operation;
a correction pin cam which is provided so as to be adjacent to the fixed pin cam in such a manner that it can rotate around a shaft center of the folding cylinder with a number of revolutions different from that of the folding cylinder, can stop so as not to obstruct an operation of the pin which is protruded/retracted by the fixed pin cam in case of straight run, and can protrude/retract an end portion of a pin of each pin device with respect to the outer periphery of the folding cylinder once per two rotations of the folding cylinder so as to perform a collect run operation by an interaction with the fixed pin cam in case of collect run;
a blade cam which is provided so as to be adjacent to the correction pin cam in such a manner that it can rotate around the shaft center of the folding cylinder integrally with the correction pin cam and it can operate a blade of the blade device correlatively with an operation of the pin at a position opposed to the jaw device, which can stop together with the correction pin and thrust the blade of each blade device with respect to the jaw device once per rotation of the folding cylinder so as to perform a straight run operation in case of straight run, and which can rotate together with the correction pin cam and thrust the blade of each blade device with respect to the jaw device once per two rotations of the folding cylinder so as to perform a collect run operation in case of collect run; and
a switching device consisting of: switching means provided in a force transmission path through which rotary driving is transmitted to the correction pin cam and the blade cam all at once so as to be capable of switching between a drive side connection that connection with a drive side is established and the two cams are driven to rotate and stop side connection that connection with the drive side is released and the two cams are stopped with a preset rotary phase, and capable of instantaneously establishing both the drive side connection and the stop side connection at the time of switching; detecting means for detecting a start-up timing of the switching means on the basis of a rotation of a drive source with either collect run or straight run being specified,
wherein collect run or straight run is selectively switched while operating the folding apparatus.
In switching of collect run and straight run of the folding apparatus, when the folding apparatus is operated at a low speed and the cutting cylinder, the folding cylinder and the jaw cylinder are rotated at a preset speed, the correction pin cam and the blade cam which can integrally rotate with respect to the fixed pin cam are rotated in case of collect run, while they are stopped in case of straight run, and both the drive side connection and the stop side connection can be instantaneously attained at the time of switching of the switching means. As a result, collect run or straight run is automatically and assuredly switched.
Further, according to the folding apparatus of a rotary press of the present invention, the switching means comprises:
an intermediate shaft rotatably provided parallel with a shaft center of the cutting cylinder;
a driven gear which is meshed with a gear provided to the cutting cylinder on the drive side, rotatably provided with respect to the intermediate shaft and has a concave portion on a side surface;
an intermediate shaft gear which is fixed to the other end of the intermediate gear and meshed with a relay gear relative to the correction pin cam and the blade cam on the driven side;
a fixing member which is arranged between the intermediate shaft gear and the driven gear, and has a concave portion opposed to the concave portion of the driven gear a and a hole through which the intermediate shaft is inserted;
a clutch member which is provided between the driven gear and the fixing member, capable of moving in the axial direction of the intermediate shaft and rotating integrally with the intermediate shaft in the rotating direction, and has a convex portion provided on each of both end surfaces in the axial direction, convex portion of which can be fitted to the concave portion of the drive gear or of the fixing member opposed to the end surface, a dimension from a tip of the convex portion on one end surface to a tip of the convex portion on the other end surface being slightly larger than a distance between opposed end surfaces of the driven gear and the fixing member; and
a movement mechanism which selectively moves the clutch member in one way of the axial direction of the intermediate shaft.
The dimension of the clutch member from the tip of the convex portion on one end surface to the tip of the convex portion on the other end surface is slightly larger than the distance between the opposed end surfaces of the driven gear and the fixing member, and there is a range that the convex portions provided on the both end portions of the clutch member of the switching means can be fitted in both of the opposed convex portions in a very short time during movement of the clutch member in the axial direction, thereby automatically and assuredly performing switching. Therefore, in switching between collect run and straight run in the folding apparatus, switching can be very easily achieved without requiring skills at all, a troublesome switching operation is no longer necessary, a working efficiency at the time of switching can be enhanced, and an operating efficiency of the rotary press can be improved.
Furthermore, in the folding apparatus of a rotary press it is preferable that the clutch member can rotate integrally with the intermediate shaft by a key and can move with respect to the intermediate shaft in the axial direction.
As a result, the clutch member can integrally rotate while being capable of moving with respect to the intermediate shaft in the axial direction.
Moreover, in the folding apparatus of a rotary press it is preferable that the convex portions on the both end surface of the clutch member in the axial direction are provided in a straight line form in a direction perpendicularly cutting across the shaft center of the intermediate shaft in phase and they can be fitted in and connected with the concave portion of the driven gear or the fixing member when movement of the clutch member on the intermediate shaft in the axial direction is completed.
As a result, the clutch member can be assuredly connected with the driven gear or the fixing member through each convex portion.
Additionally, in the folding apparatus of a rotary press it is preferable that the clutch member can also be connected with the fixing member at another position obtained by rotating the disconnected clutch member 180 degrees from one connection position.
As a result, the clutch member can be rapidly connected with the fixing member.
Further, in the folding apparatus of a rotary press it is preferable that the clutch member has a groove at an outer peripheral portion and is connected with the movement mechanism through this groove.
Consequently, engagement between the clutch member and the movement mechanism can be assuredly attained.
Furthermore, in the folding apparatus of a rotary press it is preferable that the movement mechanism includes a shift lever which has a guide roller inserted into the groove at one end and fixed to a rotatable shaft, an operation lever which is fixed to the shaft, and a pneumatic cylinder connected to the other end of the operation lever.
As a result, the movement mechanism can smoothly operate the clutch member.
Moreover, in the folding apparatus of a rotary press it is preferable that a cylinder rod of the pneumatic cylinder is connected to the other end of the operation lever, the shift lever is subjected to angular displacement by expansion or contraction of the cylinder rod of the pneumatic cylinder, and the clutch member can move in the axial direction of the intermediate shaft.
As a result, the movement mechanism can further smoothly operate the clutch member.
Additionally, in the folding apparatus of a rotary press it is preferable that the intermediate shaft rotates and enters a drive side connection state in which a force can be transmitted when one convex portion of the clutch member is connected with the concave portion of the driven gear, and the intermediate shaft is stopped and enters a stop side connection state when the other convex portion of the clutch member is connected with the concave portion of the fixing member.
As a result, the clutch member can be smoothly operated from the drive side connection state and the stop side connection state.
Further, in the folding apparatus of a rotary press it is preferable that the detecting means consists of a detection piece provided at a cutting cylinder shaft of the cutting cylinder and a detector which detects the detection piece.
Consequently, a start-up timing of the switching means for switching between collect run and straight run can be assuredly obtained.
The foregoing and other features of the present invention will become apparent to those skilled in the art to which the present invention relates from reading the following description with reference to the accompanying drawings, in which:
An embodiment of a folding apparatus of a rotary press according to the present invention will now be described with reference to the accompanying drawings. As shown in
Further, the cutting cylinder 11, the folding cylinder 12 and the jaw cylinder 13 are provided in such a manner that their outer peripheral surface lengths have a relationship of substantially 2:3:3 and, as shown in
The cutting cylinder 11 includes cutting blade devices 14 which cuts a printed paper web W at two positions obtained by equally dividing an outer peripheral portion of the cutting cylinder 11, and cuts the printed paper web W in a direction perpendicular to a traveling direction of the printed paper web W at every half turn in a phase opposed to the folding cylinder 12. Furthermore, the cutting cylinder 11 has a circumferential length corresponding to twofold of a length of a print paper sheet cut to a fixed length.
The folding cylinder 12 has a diameter which is 3/2 of that of the cutting cylinder 11 adjacent thereto on one side, i.e., a circumferential length corresponding to threefold of a length of the print paper sheet S, and includes at three positions obtained by equally dividing the outer peripheral portion of the folding cylinder 12 pin devices 15 which thrust the vicinity of a cut portion S1 of the print paper sheet S on the leading side (which will be referred to as a leading end hereinafter) by using a plurality of pins 151 (see
As shown in
As shown in
As shown in
As shown in
Moreover, as shown in
As shown in
A structure of the switching means 62 will now be described. A structure which drives the correction pin cam 3 and the blade cam 4 consists of a gear drive mechanism shown in
A clutch member 634 which is fitted to the clutch shaft 621 is provided between the boss end surface of the gear b 622 and the boss end surface of the fixing member 631, and the clutch member 634 can integrally rotate with the clutch shaft 621 by the key 625 and move with respect to the clutch shaft 621 in the axial direction. Straight line type convex portions 635 and 636 which perpendicularly cut across the shaft center of the clutch shaft 621 are provided on the both end surfaces of the clutch member 634 in the axial direction in phase, and they are designed to be fitted in the concave portion 623 of the gear b 622 or the concave portion 633 of the fixing member 631 when movement of the clutch member 634 on the clutch shaft 621 in the axial direction is completed. That is, the clutch member 634 can be connected with the gear b 622 at every time the gear b 622 rotates 180 degrees. Similarly, the clutch member 634 can be connected with the fixing member 631 at one connection position to which the disconnected clutch member 634 is rotated 180 degrees from the other connection position. The clutch member 634 has a groove 637 on the outer peripheral portion, and is connected to the movement mechanism 64 through the groove 637.
As shown in
Further, when the clutch member 634 moves, the convex portion 635 is fitted in the concave portion 623, or the convex portion 636 is fitted in the concave portion 633. When one convex portion (which will be referred to as a first convex portion) 635 of the clutch member 634 is connected to the concave portion 623 of the gear b 622, the clutch shaft 621 rotates and enters a drive side connection state capable of driving. When the other convex portion (which will be referred to as a second convex portion) 636 of the clutch member 634 is connected to the concave portion 633 of the fixing member 631, the clutch shaft 621 stops and enters a stop side connection state.
An intermediate shaft gear (which will be referred to as a gear c hereinafter) 624 which is integral with the clutch shaft 621 is provided between the frame F and the fixing member 631, and it is meshed with a relay gear (which will be referred to as a gear d hereinafter) 627 (see
As shown in
Structures of the fixed pin cam 2 and the rotatable correction pin cam 3 and blade cam 4 will now be described. As shown in
This cam is provided so as to cope with straight run that an end of the pin 151 temporarily enters the inner side with respect to the outer periphery of the folding cylinder 12 and immediately protrudes every time the cam follower 154 of the pin device 15 passes the trough portion 22 by rotation of the folding cylinder 12. A position of the trough portion 22 is set in such a manner that the pin 151 is prepared to enter the inner side of the outer periphery, come off the leading end S1 of the print paper sheet S and again protrude to be newly put into the printed paper web W when the print paper sheet S shown in
As shown in
As shown in
A description will now be given as to an effect when switching from collect run to straight run or switching from straight run to collect run in the embodiment of the folding apparatus according to the present invention with reference to
When switching from collect run to straight run, the folding apparatus 1 is operated at a low speed, and the cutting cylinder 11, the folding cylinder 12 and the jaw cylinder 13 are rotated at a predetermined speed. Moreover, when straight run is specified by a non-illustrated operation device which can specify either collect run or straight run and a detected portion of the detection piece 611 which rotates with the cutting cylinder 11 is detected by the detecting means 61, an operation signal corresponding to the specified and selected run is outputted by a non-illustrated control device in accordance with the first detection. Then, the cylinder rod 646 of the pneumatic cylinder 645 provided to the movement mechanism 64 shown in
Then, when a position of the second convex portion 636 of the clutch member 634 matches with a position of the concave portion 633 on the end surface of the fixing member 631, as shown in
That is, as shown in
On the other hand, as shown in
Moreover, since an end portion 176 of the holding plate 171 of the jaw device 17 and an end portion 177 of the holding fixing member 173 are provided so as to protrude from the outer periphery of the jaw cylinder 13 as shown in
That is, in case of straight run, as shown in
Subsequently, when switching from straight run to collect run, the folding apparatus 1 is operated at a low speed, and the cutting cylinder 11, the folding cylinder 12 and the jaw cylinder 13 are rotated at a predetermined speed. Then, collect run is specified by a non-illustrated operation device which can specify either collect run or straight run. Further, when the detected portion of the detection piece 611 which rotates together with the cutting cylinder 11 is detected by the detecting means 61, an operation signal corresponding to the specified run is outputted by the control device in accordance with the first detection like the case of switching to straight run. Then, the cylinder rod 646 of the pneumatic cylinder 645 provided to the movement mechanism 64 is operated in the expanding direction according to the operation signal. Subsequently, as shown in
Subsequently, when a position of the first convex portion 635 of the clutch member 634 matches with a position of the end surface of the gear b 622, as shown in
Moreover, when the folding cylinder 12 makes a ⅓ rotation from the state shown in
The pin device 15 thrusting the pin 151 into the passing print paper sheet S and holding this paper sheet is again opposed to the cutting blade device 14 of the cutting cylinder 11 by rotation of the folding cylinder 12, superposes a new print paper sheet S on the print paper sheet S and thrusts the pin 151 into them, and carries the two-ply print paper sheet S to the portion opposed to the jaw cylinder 13. When the blade device 16 moves to the position opposed to the jaw device 17 of the jaw cylinder 13, the cam follower 164 of the blade 161 is in the trough portion 42 of the rotating blade cam 4, the blade 161 is close to the outer periphery of the folding cylinder 12, and the central part of the two-ply print paper sheet S is put into the jaw device 17. With substantially the same timing as this, the cam follower 154 of the pin 151 temporarily falls in the trough portion 22 of the fixed pin cam 2, and the pin 151 comes off the print paper sheet S. The two-ply print paper sheet S is held by the jaw device 17 of the jaw cylinder 13, folded and carried to the downstream side. Then, the subsequent non-superposed print paper sheet S passes by without being held by the opposed jaw device 17.
That is, in case of collect run, as shown in
Therefore, the folding apparatus according to the present invention has one fixed pin cam 2 provided on one end side of the folding cylinder 12, the correction pin cam 3 and the blade cam 4 which are provided so as to be adjacent to the fixed pin cam 2 and can integrally rotate or stop, and the switching device 6 which can switch to either collect run or straight run. When either run is specified by a non-illustrated operation device which can selectively specify collect run or straight run, the clutch shaft 621 which can rotate with the same number of revolutions as that of the cutting cylinder 11 is automatically rotated or stopped. Further, in case of collect run, when the integral correction pin cam 3 and blade cam 4 which can rotate relative to the fixed pin cam 2 are rotated by the rotating clutch shaft 621, the two-ply print paper sheet S is folded and discharged at every time the jaw cylinder 13 makes a ⅔ rotation. Furthermore, in case of straight run, when the integral correction pin cam 3 and blade cam 4 which can rotate or stop with respect to the fixed pin cam 2 are stopped by the stopped clutch shaft 621, the print paper sheet S is folded one by one and discharged at every time the jaw cylinder 13 makes a ⅓ rotation.
In the illustrated embodiment of the folding apparatus, a cylinder diameter ratio of the cutting cylinder 11, the folding cylinder 12 and the jaw cylinder 13 is 2:3:3, the folding cylinder 12 and the jaw cylinder 13 make a ⅓ rotation when the cutting cylinder 11 makes a ½ rotation, and a movement length of the outer periphery of each cylinder in these rotation quantities corresponds to a length of the print paper sheet S. However, even if the cutting cylinder 11, the folding cylinder 12 and the jaw cylinder 13 have another cylinder diameter ratio such as 2:5:5, the same effect can be obtained by appropriately setting the number of revolutions of the correction pin cam 3 and the blade cam 4 relative to the number of revolutions of the folding cylinder 12.
As described above, according to the embodiment of the present invention, collect run and straight run of the folding apparatus can be automatically and assuredly switched since there is a range that the convex portions provided at both end portions of the clutch member of the switching means can be simultaneously fitted in the respective opposed concave portions for a very short time during movement of the clutch member in the axial direction in such a manner that the correction pin cam and the blade cam which can integrally rotate relative to the fixed pin cam are rotated in case of collect run or stopped in case of straight run when the folding apparatus is operated at a low speed and the cutting cylinder, the folding cylinder and the jaw cylinder are rotated at a predetermined speed. Therefore, in switching between collect run and straight run in the folding apparatus, switching can be very easily carried out by only specifying either run type without requiring skills at all, the complicated switching operation is no longer necessary, the working efficiency at the time of switching can be improved, and the operating efficiency of the rotary press can be enhanced.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2003-130905 | May 2003 | JP | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| 4380449 | Michalik | Apr 1983 | A |
| 5201701 | Roettger et al. | Apr 1993 | A |
| 6487965 | Stieler et al. | Dec 2002 | B2 |
| 6846279 | Stieler et al. | Jan 2005 | B2 |
| 6895858 | Kostiza et al. | May 2005 | B2 |
| 7083561 | Prum | Aug 2006 | B2 |
| Number | Date | Country |
|---|---|---|
| 43-6191 | Mar 1968 | JP |
| 61254468 | Nov 1986 | JP |
| 63-18577 | Aug 1988 | JP |
| 63-185777 | Aug 1988 | JP |
| 7-157193 | Jun 1995 | JP |
| 3117256 | Oct 2000 | JP |
| 2001-26374 | Jan 2001 | JP |
| Number | Date | Country | |
|---|---|---|---|
| 20040221749 A1 | Nov 2004 | US |
