Claims
- 1. A clutch mechanism of coat film transfer tool comprising:a feed reel with a coat film transfer tape wound thereabout and a take-up reel for collecting the coat film transfer tape after use, the feel reel and take-up reel rotatably provided in a case that is held and manipulated by one hand, the take-up reel cooperates with the feed reel in the case to synchronize a feed speed and take-up speed of the coat film transfer tape in both reels, power transmission means is provided between a tape winding portion for winding up the coat film transfer tape and a rotary drive unit for rotating and driving the tape winding portion, the power transmission means is composed in at least one of the feed and take-up reels, and has a compressible friction member interposed between confronting first axial end surfaces of the tape winding portion and the rotary drive unit, the rotary drive unit including a rotary shaft, the tape winding portion including a driven member arranged concentrically about the rotary shaft for rotation thereabout, wherein the driven member is disposed to compress the compressible friction member in a first axial direction to cause a frictional engagement state between the confronting first axial end surfaces of the tape winding portion and the rotary drive unit, the compressed friction member urging the driven member in a second axial direction opposite the first axial direction to cause confronting second axial end surfaces disposed axially apart from the confronting first axial end surfaces to engage with each other while retaining the frictional engagement state, and wherein power transmission of the power transmission means is from a frictional force caused by a thrust load between the tape winding portion and the rotary drive unit, and is connected and disconnected by a difference in torque therebetween, the thrust load, which causes the frictional force, is set by predetermined relational dimensions of the tape winding portion and the rotary drive unit in the axial direction between the tape winding portion and the rotary drive unit defined by direct and axial engaging of axial engaging portions formed in the tape winding portion and the rotary drive unit.
- 2. A clutch mechanism of coat film transfer tool of claim 1, wherein the friction member is an elastomer O-ring.
- 3. A clutch mechanism of coat film transfer tool of claim 1, wherein the friction member is a plastic sheet.
- 4. A clutch mechanism of coat film transfer tool of claim 1, wherein a position defining unit is provided for suppressing the distance between the axial end surfaces of the tape winding portion and the rotary drive unit within a set value.
- 5. A coat film transfer tool using a coat film transfer tape of disposable type, comprising:a case having shape and dimensions to be held and manipulated by one hand, a feed reel rotatably provided in the case and winding a coat film transfer tape, a take-up reel rotatably provided in the case and collecting the coat film transfer tape after use, an interlock means for linking said feed and take-up reels so as to cooperate with each other, a coat film transfer head protruding at a front end of the case and pressing the coat film transfer tape onto an object of transfer, and a clutch means for synchronizing, at least in one of the feed and take-up reels, a feed speed and take-up speed of the coat film transfer tape between the feed and take-up reels, wherein the clutch means composes, at least in one of the feed and take-up reels, power transmission means provided between a tape winding portion for winding up the coat film transfer tape and a rotary drive unit for rotating and driving the tape winding portion, and has a compressible friction member interposed between confronting first axial end surfaces of the tape winding portion and the rotary drive unit, the rotary drive unit including a rotary shaft, the tape winding portion including a driven member arranged concentrically about the rotary shaft for rotation thereabout, wherein the driven member is disposed to compress the compressible friction member in a first axial direction to cause a frictional engagement state between the confronting first axial end surfaces of the tape winding portion and the rotary drive unit, the compressed friction member urging the driven member in a second axial direction opposite the first axial direction to cause confronting second axial end surfaces disposed axially apart from the confronting first axial end surfaces to engage with each other while retaining the frictional engagement state, and wherein power transmission of the power transmission means is from a frictional force caused by a thrust load between the tape winding portion and the rotary drive unit, and is connected and disconnected by a difference in torque therebetween, the thrust load, which causes the frictional force, is set by predetermined relational dimensions of the tape winding portion and the rotary drive unit in the axial direction between the tape winding portion and the rotary drive unit defined by direct and axial engaging of axial engaging portions formed in the tape winding portion and the rotary drive unit.
- 6. A coat film transfer tool of claim 5, further comprising:a tape rewinding mechanism for eliminating and removing slack of the coat film transfer tape between the two reels, wherein the tape rewinding mechanism has an axial free end of the tape winding portion for winding the coat film transfer tape provided oppositely to the outside of the case in the feed reel, and a rewinding operation unit is integrally formed at the end surface of said free end.
- 7. A coat film transfer tool of claim 6, wherein the clutch means is provided in both the feed reel and take-up reel.
- 8. A coat film transfer tool using a coat film transfer tape of refill type, comprising:a case having shape and dimensions to be held and manipulated by one hand, a feed rotary unit rotatably provided in the case, a take-up rotary unit rotatably provided in the case, an interlock means for linking the feed and take-up rotary units so as to cooperate with each other, a tape cartridge having a feed reel and a take-up reel engaged detachably and rotatably with both the feed and take-up rotary units respectively, a coat film transfer head protruding at a front end of the case and pressing the coat film transfer tape onto an object of transfer, and a clutch means for synchronizing, at least in one of the feed and take-up reels, a feed speed and take-up speed of the coat film transfer tape between the feed and take-up rotary units, wherein the clutch means composes, at least in one of the feed and take-up rotary units, power transmission means provided between a tape winding portion for winding up the coat film transfer tape and a rotary drive unit for rotating and driving the tape winding portion, and has a compressible friction member interposed between confronting first axial end surfaces of the tape winding portion and the rotary drive unit, the rotary drive unit including a rotary shaft, the tape winding portion including a driven member arranged concentrically about the rotary shaft for rotation thereabout, wherein the driven member is disposed to compress the compressible friction member in a first axial direction to cause a frictional engagement state between the confronting first axial end surfaces of the tape winding portion and the rotary drive unit, the compressed friction member urging the driven member in a second axial direction opposite the first axial direction to cause confronting second axial end surfaces disposed axially apart from the confronting first axial end surfaces to engage with each other while retaining the frictional engagement state, and wherein power transmission of the power transmission means is from a frictional force caused by a thrust load between the tape winding portion and the rotary drive unit, and is connected and disconnected by a difference in torque therebetween, the thrust load, which causes the frictional force, is set by predetermined relational dimensions of the tape winding portion and the rotary drive unit in the axial direction between the tape winding portion and the rotary drive unit defined by direct and axial engaging of axial engaging portions formed in the tape winding portion and the rotary drive unit.
- 9. A coat film transfer tool of claim 8, further comprising:a tape rewinding mechanism for eliminating and removing slack of the coat film transfer tape between the two reels, wherein the tape rewinding mechanism has an axial free end of the tape winding portion for winding the coat film transfer tape provided oppositely to the outside of the case in the feed reel, and a rewinding operation unit is integrally formed at the end surface of said free end.
- 10. A coat film transfer tool of claim 8, wherein the clutch means is provided both the feed rotary unit and take-up rotary unit.
Priority Claims (2)
Number |
Date |
Country |
Kind |
7-286573 |
Oct 1995 |
JP |
|
7-286574 |
Oct 1995 |
JP |
|
Parent Case Info
This is a Division of application Ser. No. 09/605,056 filed Jun. 28, 2000, (which in turn is a Continuation Application of Parent application Ser. No. 08/726,175) filed Oct. 4, 1996, now abandoned. The disclosure of the prior application(s) is hereby incorporated by reference herein in its entirety.
US Referenced Citations (15)
Foreign Referenced Citations (1)
Number |
Date |
Country |
198883 |
Jan 1993 |
CN |
Continuations (1)
|
Number |
Date |
Country |
Parent |
08/726175 |
Oct 1996 |
US |
Child |
09/605056 |
|
US |