JP2008267442A - Transmission device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ratchet type transmission device with a rotor to be rotated in one direction with linearly reciprocating operative force, having simplified construction for preventing or suppressing the occurrence of friction resistance between a driving pawl and a ratchet during homeward operation, securing smooth operation of the driving pawl, the ratchet and the rotor, and preventing the abnormal noises of the driving pawl during homeward operation. <P>SOLUTION: The transmission device comprises the driving pawl 61 having reciprocating operation while receiving reciprocating operative force, the ratchet 62 provided on a winding reel R2 as the rotor to be energized by the driving pawl 61, in an integrally rotatable manner, a selective holding mechanism 8 for selectively holding the driving pawl 62 in engaging attitude C where it can drive the ratchet 62 or in evacuating attitude D where it cannot contact the ratchet 62, and an attitude change-over mechanism 9 for setting the driving pawl 62 in the engaging attitude C during the outward operation of the driving pawl 61 and for changing over the driving pawl 61 into the evacuating attitude D during the homeward operation of the driving pawl 61. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a transmission device in which a rotating body is rotated in one direction by a linear reciprocating force.

  Conventionally, as a transmission device that rotates a rotating body in one direction by a linear reciprocating force, a driving claw that performs a reciprocating operation by receiving a reciprocating operating force, and a rotating body that is urged by the driving claw And a ratchet-type aspect in which the claw wheel is rotated by engaging and energizing the tooth portion of the claw wheel when the driving claw moves forward. Can be mentioned. In addition, such a transmission device is utilized for various uses, and does not need to illustrate a specific patent document.

  However, in the conventional ratchet type transmission device, after the drive claw is moved from the operation start position to the operation end position and engaged with the tooth portion of the claw wheel to rotate the claw wheel and the rotating body, the drive claw Since it returns from the operation end position to the operation start position while sliding on the claw wheel, a frictional resistance is generated between the driving claw and the claw wheel during the return operation of the driving claw, and a load corresponding to the frictional resistance is also applied to the rotating body. There may be a problem that the smooth movement of the hook, the driving claw and the claw wheel, and thus the rotating body cannot be ensured. In addition, abnormal noise is likely to occur during the return operation of the drive claw, and further, a reverse rotation prevention mechanism that prevents reverse rotation of the claw wheel during the return operation of the drive claw is essential, resulting in a complicated structure. .

  The present invention has been made paying attention to such a problem, and a main object thereof is to prevent or suppress frictional resistance that may occur between the driving claw and the driving claw when the driving claw performs a backward operation. An object of the present invention is to provide a transmission device that can ensure the smooth operation of the claw wheel and the rotating body, prevent the generation of noise during the return operation of the driving claw, and simplify the structure.

  That is, the transmission device of the present invention is such that a rotating body is rotated in one direction by a linear reciprocating force, and a driving claw that performs a reciprocating operation by receiving the reciprocating force, and the driving claw The claw wheel provided so as to be able to rotate integrally with the rotating body to be biased by the rotating body, and the driving claw in either an engagement posture capable of driving the claw wheel or a retracting posture where the claw wheel cannot be contacted. A selective holding mechanism that selectively holds, and an attitude in which the driving claw is brought into the engagement posture when the driving claw is moved forward, and the driving claw is switched to the retracted posture when the driving claw is moved backward. And a switching mechanism.

  In such a case, the driving claw that moves forward by the posture switching mechanism is in the engaging posture, so that the claw wheel can be driven by this driving claw and the rotating body can be rotated, and the driving claw that performs backward operation Therefore, the frictional resistance that can occur between the driving claw and the claw wheel during the backward operation can be prevented or suppressed, and an unnecessary load is applied to the rotating body. The smooth movement of the driving claw and the claw wheel, and thus the rotating body can be ensured. Furthermore, since the driving claw that performs the backward movement cannot be brought into contact with the claw wheel, it is possible to prevent the engagement noise between the driving claw and the claw wheel during the backward movement. In addition, since the driving claw that moves backward is in the retracted position, it is not necessary to provide a reverse rotation prevention mechanism for preventing reverse rotation of the claw wheel during the backward movement of the driving claw, and the simplification of the structure is effective. Can be planned.

  In particular, the selection holding mechanism has a first urging posture for urging the driving claw in a direction in which the tip of the driving claw contacts the claw wheel, and the tip of the driving claw is separated from the claw wheel. A drive unit urging member capable of changing the posture between a second urging posture for urging the driving claw in a direction, and taking the first urging posture when the driving claw moves forward. If the driving pawl is held in the engaging posture, and the driving pawl is held in the retracted posture by taking the second biasing posture when the driving pawl is moved backward, the first biasing is performed. The driving claw can be held in the retracted position by the urging force of the driving claw urging member switched from the attitude to the second urging attitude, and the tip of the driving claw is reliably prevented from coming into contact with the claw wheel. be able to.

  When the posture switching mechanism receives the reciprocating force and moves the drive claw from the drive claw actuation start position to the drive claw actuation end position, the posture switching mechanism contacts the drive claw, and the drive claw further moves in the same direction. A first stopper for restricting movement; and a process of moving the drive claw from the drive claw actuation end position to the drive claw actuation start end position or when the drive claw is moved to the drive claw actuation start end position; A second stopper for restricting further movement in the same direction, and when the driving claw comes into contact with the first stopper, the driving claw urging member is moved from the first urging posture to the second urging posture. If the posture is changed to the posture and the posture of the driving claw urging member is changed from the second urging posture to the first urging posture when the driving claw contacts the second stopper, Realizing the posture switching mechanism with a simple configuration In addition to being able to do this, it is possible to forcibly change the posture of the driving claw urging member between the first urging posture and the second urging posture by bringing the driving claw into contact with the first stopper or the second stopper. In addition, by changing the position of the drive claw urging member, it is possible to accurately change the position of the drive claw from the engaged position to the retracted position and from the retracted position to the engaged position.

  And a forcible retraction mechanism that switches the drive claw to the retracted position when a rotational driving force is applied to the claw wheel from a position other than the drive claw while the drive claw is in contact with or engaged with the claw wheel. It is preferable that it does not hinder the spontaneous rotation of the rotating body.

  Each tooth portion of the claw wheel has an inclined surface inclined at a predetermined angle in a direction deviating from an imaginary straight line connecting a base end portion of each tooth portion and a rotation center of the claw wheel at a tip portion, When the retraction mechanism is subjected to a rotational driving force other than the drive claw on the claw wheel, the tip of the drive claw in the engagement posture is moved to the inclined surface of the tooth part by the rotation operation of the claw wheel. If the drive claw is switched to the retracted position by guiding it in a direction away from the tooth portion while sliding along the tooth portion, the drive claw is moved to the tooth portion by utilizing the rotation of the claw wheel that rotates integrally with the rotating body. It is possible to forcibly switch to the retracted posture by guiding it to the inclined surface, and to ensure a smooth and stable switching operation of the driving claw.

  In order to reliably prevent the tip of the drive claw from engaging the tooth when a rotational driving force is applied to the claw wheel from a position other than the drive claw, the forced retraction mechanism is configured to move the tip of the drive claw. What is necessary is just to hold | maintain the said drive nail | claw in the said retracting attitude | position by the process of guiding in the direction away from the said tooth | gear part while sliding along the said inclined surface, or the time of having completed guiding.

  When the selection holding mechanism guides the guide claw in a direction away from the tooth portion while sliding the tip end portion of the drive claw along the inclined surface, or when the guide claw is finished, the tip end portion of the drive claw is If the drive claw urging member that urges the drive claw in the direction away from the claw wheel is provided, the drive claw is accurately moved in the direction away from the tooth portion by the urging force of the drive claw urging member. be able to.

  Further, the driving claw urging member has a first urging posture for urging the driving claw in a direction in which the front end of the driving claw contacts the claw wheel, and the front end of the driving claw is separated from the claw wheel. The posture can be changed between the second biasing posture for biasing the driving claw in the separating direction, and the tip end portion of the driving claw along the inclined surface in the state of the first biasing posture. If the point that exceeds the thought point at the time of guiding in the direction away from the tooth part while being slid or the guidance is completed, and the second biasing posture is switched when the thought point is exceeded, The driving claw can be held in the retracted position by the urging force of the driving claw urging member switched from the first urging attitude to the second urging attitude, and it is ensured that the tip of the driving claw contacts the claw wheel. Can be prevented.

  The drive claw projects the tip part toward the tooth part of the claw wheel from other regions, and slides along the inclined surface in a state where the tip part is in surface contact with the inclined surface of the tooth part. Compared with the mode in which the tip of the driving claw can be slid along the inclined surface in a state where the tip of the driving claw is in linear or point contact with the inclined surface, It is possible to stabilize the sliding state between the tip portion and the inclined surface, and to receive the pressing force received from the tooth portion by rotation of the claw wheel, It is possible to prevent early damage and deformation of the teeth.

  In particular, if the drive claw urging member and the drive claw are integrally formed, the number of parts and the number of assembling steps can be reduced.

  As a specific application example of such a transmission device, a tape with a transfer material detachably attached on one side is fed out from a feeding reel, and is wound around a winding reel as the rotating body via a transfer head. Applied to the transfer tool, and functions as a forcible take-up device for eliminating the slack of the tape that may occur between the take-up reel and the take-up reel by forcibly rotating the take-up reel The aspect to be made is mentioned.

  When the driving claw is positioned at the driving claw actuation start position without receiving the reciprocating force, if it is held in a standby posture that cannot be engaged with the claw wheel, an unnecessary meshing sound during standby is required. Will not occur. Moreover, the transfer tool main body is a refill-side first half case holding at least the feeding reel and the take-up reel, and a second half case on the main body side detachably assembled to each other. By adopting a mode in which the transmission device that functions as a winding device is held in the second half case, the driving pawl is held in a standby posture in which the driving pawl cannot be engaged with the claw wheel unless the user applies a reciprocating force. Therefore, the work of exchanging the first half case on the refill side can be easily performed.

  As a preferred embodiment, there is an embodiment in which the driving claw reciprocates due to an operating force applied to an externally operable operating unit.

  As described above, according to the present invention, the frictional resistance that can be generated between the driving claw and the claw wheel when the driving claw moves backward is prevented or suppressed, and the driving claw and the claw wheel, and thus the rotating body, can be smoothly operated. In addition, it is possible to prevent the generation of noise during the return operation of the driving claw and to simplify the structure.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  In this embodiment, as shown in FIG. 1, the transmission device according to the present invention is fed from a feeding reel R1 with a transfer material detachably attached to one side, and passed to a take-up reel R2 via a transfer head 3. The transfer tool 1 is adapted to be wound up. Specifically, the take-up reel R2 corresponds to the rotating body of the present invention, and the transmission device according to the present invention functions as the forced take-up device 4 that forcibly drives the take-up reel R2 to rotate.

  The transfer tool 1 includes a transfer tool body 2 and a transfer head 3 attached to the transfer tool body 2. In FIG. 1, the transfer tool body 2 and the head cap HC are shown as transparent bodies, and the tape is omitted.

  The transfer head 3 includes a head main body 31 that guides the tape so that the tape is folded back at the leading edge 31T, and a head attachment portion 32 for attaching the head main body 31 to the transfer tool main body 2. The head mounting portion 32 is set so as to be able to rotate around the axis with respect to the transfer tool main body 2, and the head main body 31 swings with respect to the head mounting portion 32 in the width direction of the tape. Is.

  As shown in FIGS. 1 and 2, the transfer tool main body 2 includes a first half case 21 on the refill side and a second half case 22 on the main body side having a half structure, and the half cases 21 and 22 are attached to and detached from each other. It is assembled as possible. In the present embodiment, the supply reel R1, the take-up reel R2, and the take-up reel R2 and the take-up reel R1 are passed between the first half case 21 and the rotation of the supply reel R1 is transmitted to the take-up reel R2. A belt B that functions as a reel transmission mechanism is held. And as shown in FIG. 2 which is a top view of the 2nd half case 22 removed from the 1st half case 21, the 2nd half case 22 is holding the forced winding apparatus 4 which is a transmission device of this invention. . In the present embodiment, a mode in which the head cap HC is held by the second half case 22 is adopted, but the head cap HC is omitted in FIG.

  As shown in FIGS. 1 to 6, the forced winding device 4 transmits an operating portion 5 that can be externally operated and an operating force applied to the operating portion 5 to the winding reel R <b> 2 to cause the winding reel R <b> 2 to be integrated. And a transmission mechanism 6 that can be forcibly rotated in a direction (direction of arrow A shown in FIG. 3 and the like). 3 to 6 are explanatory views of the operation of the forced winding device 4 shown approximately corresponding to FIG. 2, and the second half case 22 is omitted for convenience of describing the operation of the forced winding device 4. In addition, a claw wheel 62 of the transmission mechanism 6 described later is shown by a solid line.

  The operation unit 5 is provided integrally with a lever 51 to which a user can directly apply a pressing force, and a base end side of the lever 51, and is rotated with one end portion being a rotation base end portion by an operation force applied to the lever 51. And a possible base portion 52.

  The lever 51 faces the outside through a notch formed in the second half case 22, and is set to a shape that can be pressed by a fingertip.

  The base portion 52 has a first arm 521 that is connected to a proximal end portion of the lever 51 at a substantially central portion in the longitudinal direction, and is rotatable with one end portion as a rotating proximal end portion by an operation force applied to the lever 51, and one end portion. Is connected to the other end (rotation free end) side of the first arm 521, and one end is connected to one end (rotation base end) side of the first arm 521 and the other end is connected. This part has a substantially triangular shape in a front view comprising a third arm 523 connected to the other end side of the second arm 522.

  The operation portion 5 is configured such that one end portion of the first arm 521 is pivotally attached to the first shaft portion J1 that protrudes inward from the inward surface of the second half case 22, thereby applying the pressing operation force applied to the lever 51. Based on the above, the first shaft portion J1 is rotated from the operation start end position (A) shown in FIG. 3 to the operation end position (B) shown in FIG.

  Moreover, the forced winding apparatus 4 of this embodiment moves the operation part 5 to the operation start position (A) when the operation part 5 is moved from the operation start position (A) toward the operation end position (B). An operation portion urging member 7 that elastically deforms while accumulating the urging force to be restored is provided.

  The operation portion urging member 7 is pivotally attached to a second shaft portion J2 having one end portion projecting inwardly from the inward surface of the second half case 22, and the other end portions are connected to the second arm 522 and the third arm 523. It is the thing of a general leaf | plate spring connected to the connection part. In the present embodiment, the second shaft portion J2 is provided at a position displaced in a direction away from the lever 51 of the operation portion 5 relative to the first shaft portion J1. The operation portion urging member 7 having one end pivotally attached to the second shaft portion J2 takes a posture of bending downward as a whole when the operation portion 5 is positioned at the operation start position (A). The posture of bending further downward while accumulating the urging force for returning the operation unit 5 to the operation start position (A) as the operation unit 5 moves from the operation start position (A) to the operation end position (B). It is elastically deformed. In the present embodiment, the operation portion biasing member 7 is formed integrally with the operation portion 5.

  On the other hand, the transmission mechanism 6 includes a driving claw 61 that reciprocates in response to an operating force applied to the operation unit 5 and a claw provided on the take-up reel R2 so as to be integrally rotatable so as to be biased by the driving claw 61 The vehicle 62 is provided.

  The driving claw 61 includes an arm portion 611 having a substantially partial arc shape, and a claw main body 612 that is provided at the distal end portion of the arm portion 611 and can be engaged with the claw wheel 62 (corresponding to the “tip portion of the driving claw” of the present invention). Are integrated. The base end portion of the arm portion 611 is rotatably supported on the other end portion (rotation free end portion) side of the first arm 521. The claw body 612 is protruded toward the inner side of the arc of the arm portion 611. The drive claw 61 receives an operation force applied to the operation unit 5, specifically, a linear reciprocation force applied to the lever 51, and reciprocates to drive the claw wheel 62. The posture is changed between (C) (see FIGS. 4 and 5) and the retracted posture (D) (see FIG. 6) that cannot contact the ratchet wheel 62. 3 to 6, the rotation center of the operation unit 5 and the drive claw so that the rotation angle of the operation unit 5 in the operation process and the relative angle posture between the operation unit 5 and the drive claw 61 can be intuitively grasped. A virtual straight line L1 connecting the rotation center 61 is indicated by a one-dot chain line.

  Furthermore, the forced winding device 4 of the present embodiment includes a selective holding mechanism 8 that selectively holds the drive claw 61 in either the engagement posture (C) or the retracted posture (D).

  The selection holding mechanism 8 includes a first urging posture (E) (see FIGS. 3 to 5) for urging the driving claw 61 in a direction in which the claw main body 612 of the driving claw 61 contacts the claw wheel 62, and the claw main body 612. Is provided with a drive claw urging member 81 whose posture can be changed between a second urging posture (F) (see FIG. 6) for urging the drive claw 61 in a direction away from the claw wheel 62. When the driving claw urging member 81 takes the first urging posture (E), the driving claw 61 is held in the engaging posture (C), and the driving claw urging member 81 is in the second urging posture (F). ) Is held in the retracted position (D).

  The driving claw urging member 81 has one end connected to the rotating base end side of the driving claw 61 and the other end pivotally supported by a connection portion between the second arm 522 and the third arm 523. It is a shape. In the present embodiment, one end of the driving claw urging member 81 is provided with one end of the driving claw 61 on the other end (rotary free end) side of the first arm 521 of the operation unit 5. The other end portion of the drive claw biasing member 81 is rotatably held by the second holding portion 54 provided at the connection portion between the second arm 522 and the third arm 523. Yes. And the attitude | position bent to one side (side relatively far from the nail | claw wheel 62) with respect to the virtual straight line L2 which connects the one end part and other end part of the drive nail | claw energizing member 81 is said 1st energizing attitude | position. (E), and the posture bent to the other side (side relatively close to the ratchet wheel 62) with respect to the virtual straight line L2 is the second biasing posture (F). In the present embodiment, the drive claw urging member 81 is formed integrally with the drive claw 61.

  A claw wheel 62 driven by the driving claw 61 is integrally provided with a claw wheel main body 621 having tooth portions 621a provided on the outer peripheral edge at a predetermined pitch, and a disk portion 622 having a larger diameter than the claw wheel main body 621. The vehicle main body 621 and the disk portion 622 can be rotated synchronously with the take-up reel R2. The ratchet wheel 62 of this embodiment rotates integrally with the take-up reel R2 in the direction of arrow A shown in FIG.

  Each tooth portion 621a of the ratchet wheel main body 621 has a distal end portion that deviates from a virtual straight line L3 (see FIG. 3) connecting the base end portion of each tooth portion 621a and the rotation center of the tooth wheel 62, specifically, a virtual It is inclined by a predetermined angle with respect to the straight line L3 in the counter-rotating direction of the ratchet wheel 62 (the reverse direction of the arrow A direction shown in FIG. 3 and the like).

  The disk part 622 is opposed to the second disk part R21 shown in FIG. 1 and forms a travel path of the belt B as a reel transmission mechanism between the second disk part R21 and functions as a pulley.

  Furthermore, the forced winding device 4 according to the present embodiment places the driving claw 61 in the engagement posture (C) when the driving claw 61 moves forward, and moves the driving claw 61 when the driving claw 61 performs a backward operation. A posture switching mechanism 9 for switching to the retracted posture (D) is provided.

  The posture switching mechanism 9 receives the operation force and moves the drive claw 61 from the drive claw actuation start position (G) (see FIG. 3) to the drive claw actuation end position (H) (see FIG. 6). A first stopper 91 that contacts the driving claw 61 and restricts further movement of the driving claw 61 in the same direction, and the driving claw 61 is moved from the driving claw operating end position (H) to the driving claw operating start position (G). Or a second stopper 92 that contacts the driving claw 61 when it is moved to the driving claw actuation start end position (G) and restricts the movement of the driving claw 61 in the same direction. When the drive claw urging member 81 abuts against the first stopper 91, the drive claw urging member 81 is changed in posture from the first urging posture (E) to the second urging posture (F), and the driving claw 61 is moved to the second stopper. When the drive claw urging member 81 is brought into contact with the second urging member 92 in the second urging posture ( ) From the one in which changing the position to the first biasing attitude (E). The “drive claw actuation start position (G)” is the forward movement start position of the drive claw 61 and the return movement termination position, and the “drive claw actuation end position (H)” is the forward movement movement end position. It is an operation end position and a return operation start position.

  The first stopper 91 and the second stopper 92 are each projected inward from the inward surface of the second half case 22, and are set to projecting dimensions capable of contacting only the drive claw 61.

  Next, the operation method and operation of the forced winding device 4 having such a configuration will be described.

  First, in a standby state where no operating force is applied to the operation unit 5, the operation unit 5 is positioned at the operation start end position (A), and the drive claw 61 is positioned at the drive claw actuation start end position (G) (see FIG. 3). ). In this standby state, the drive claw 61 is held in the engagement posture (C) by the drive claw urging member 81 taking the first urging posture (E), but unless an operating force is applied to the operation unit 5. The drive claw 61 is held in a standby posture (W) that cannot engage with the claw wheel 62.

  When the tape is slackened, when the user applies an operation force that presses the lever 51 of the operation unit 5 against the urging force of the operation unit urging member 7, the entire operation unit 5 is operated. The urging member 7 rotates against the urging force of the urging member 7 around the first shaft portion J <b> 1 in a direction approaching the ratchet wheel 62. As the operation unit 5 rotates, the drive claw 61 rotatably held on the rotation free end side of the operation unit 5 is engaged by the drive claw urging member 81 taking the first urging posture (E). While being held in the combined posture (C), it rotates in a direction approaching the ratchet wheel 62 together with the operation unit 5. When the operation unit 5 is rotated to some extent in the direction of approaching the claw wheel 62, the claw body 612 of the driving claw 61 comes into contact with the tooth portion 621a of the claw wheel 62 (see FIG. 4), and the operation unit is further operated based on the operation force. When the drive claw 61 held in the engagement posture (C) by the drive claw urging member 81 taking the first urging posture (E) is rotated in the same direction, the driving claw 61 grips the contacted tooth portion 621a. The vehicle 62 is pressed in the direction of rotation (the direction of arrow A shown in FIG. 3 and the like) (see FIG. 5). As a result, the entire ratchet wheel 62 rotates in the same direction, and the slack tape is wound around the take-up reel R <b> 2 by rotating the take-up reel R <b> 2 that rotates integrally with the hook wheel 62 in the same direction.

  When the operation unit 5 is moved to the operation end position (B), the driving claw 61 comes into contact with the first stopper 91 and further movement in the same direction is restricted, and the driving claw urging member 81 is moved to the first position. The posture is changed from the first biasing posture (E) to the second biasing posture (F). By the biasing force of the driving claw biasing member 81, the driving claw 61 causes the claw body 612 to move from the tooth portion 621a of the claw wheel 62. It moves in the direction to separate, and switches from the engagement posture (C) to the retracted posture (D) where it cannot contact the ratchet wheel 62 (see the imaginary line in FIG. 2 and FIG. 6). As long as the operation force is continuously applied, the driving claw 61 is held in the retracted posture (D) by the driving claw urging member 81 in the second urging posture (F). When the operation unit 5 moves to the operation end position (B), the first arm 521 of the operation unit 5 comes into contact with the third stopper S1, so that the operation unit 5 is further in the same direction by the operation force. The movement to is regulated. The third stopper S <b> 1 is protruded inward from the inward surface of the second half case 22. Further, as the operation unit 5 moves from the operation start end position (A) to the operation end position (B), the operation unit biasing member 7 is elastic while accumulating a biasing force for returning to the operation start end position (A). Deform.

  Then, when the operation force is stopped or weakened, the operation unit 5 self-returns from the operation end position (B) to the operation start end position (A) by the elastic return force of the operation unit biasing member 7 (see FIG. 3). . With the self-return from the operation end position (B) of the operation unit 5 to the operation start position (A), the drive claw 61 is held from the drive claw operation end position (H) while being held in the retracted position (D). The drive claw urging member 81 is switched from the second urging posture (F) to the first urging posture (E) at this point in time while contacting the second stopper 92 while moving to the driving claw actuation start position (G). . Note that when the operation unit 5 moves to the operation start position (A), the third arm 523 of the operation unit 5 comes into contact with the fourth stopper S2, so that the operation unit based on the urging force of the operation unit urging member 7 is used. No more than 5 movements in the same direction are restricted. The fourth stopper S <b> 2 protrudes inward from the inward surface of the second half case 22. Further, when the operation unit 5 moves to the operation start position (A), the fifth stopper 521a provided in the vicinity of the rotation free end of the first arm 521 contacts the drive claw 61, and the first biasing posture ( The rotation of the driving claw 61 in the direction approaching the claw wheel 62 by the urging force of the driving claw urging member 81 in E) is restricted. That is, the fifth stopper 521a is configured so that the driving claw 61 is positioned at the driving claw actuation start position (G) and the operating claw 61 is moved to the tooth portion 621a of the claw wheel 62 in the standby state where no operating force is applied to the operating unit 5. It functions as a standby posture holding mechanism that holds in a standby posture (W) that cannot be touched. The fifth stopper 521a is gradually separated from the drive claw 61 when an operation force is applied to the operation unit 5, and is most separated from the drive claw 61 when the operation unit 5 is positioned at the operation end position (B). It is set to.

  By repeating the above operation, that is, the operation of pressing and releasing the lever 51 of the operation unit 5 once or a plurality of times according to the amount of tape slack, it is possible to eliminate the slack of the tape.

  As a matter of course, the transfer tool 1 provided with such a forced winding device 4 can perform a transfer operation in the same manner as a normal transfer tool. Specifically, in a state where the leading edge 31T of the transfer head 3 is pressed against the transfer target surface, the transfer tool 1 is slid along a predetermined transfer direction to pull out the tape wound around the supply reel R1. The drawing reel R1 is rotated by this pulling output, and the take-up reel R2 is rotated in one direction via the reel transmission mechanism 6 by the rotating operation of the feeding reel R1. As a result, when the leading edge 31T of the transfer head 3 is folded back, the tape on which the transfer material attached to one surface is transferred to the transfer target surface is wound around the take-up reel R2. In such a transfer operation, even when the user gives an operation force to the operation unit 5 of the forced winding device 4 by mistake or unexpectedly, the driving claw engages with the claw wheel to disengage the claw wheel. If it is the aspect which urges | biases to a rotation direction, there exists a possibility that the operation | movement of the winding reel R2 which rotates following the rotation operation of the supply reel R1 may be interfered.

  Therefore, the forced winding device 4 according to the present embodiment uses the transmission mechanism 6 when the operation force is applied to the operation unit 5 during the transfer operation in which the take-up reel R2 receives a rotational driving force from other than the operation unit 5. An operation force forced shut-off mechanism X that releases the operation force transmission state between the operation unit 5 and the take-up reel R2 is provided.

  The operating force forced shut-off mechanism X is such that the driving claw 61 in the engagement posture (C) cannot contact the claw wheel 62 when the operating force is applied to the operating unit 5 during the transfer operation. Switching to the posture (D). That is, the operating force forced cutoff mechanism X corresponds to the “forced retraction mechanism” of the present invention.

  The operation force forced shut-off mechanism X includes an inclined surface 621k formed on the rotation direction (direction of arrow A in FIG. 3 and the like) of the toothed wheel 62 among the tip portions of the respective toothed parts 621a of the toothed wheel 62, and the driving claws 61. The claw body 612 and the selective holding mechanism 8 (drive claw urging member 81) are configured. As described above, the distal end portion of the tooth portion 621a is a nail with respect to the virtual straight line L3 in a direction deviating from the virtual straight line L3 connecting the base end portion of each tooth portion 621a and the rotation center of the claw wheel 62. It protrudes in a direction inclined at a predetermined angle in the counter-rotating direction of the wheel 62 (the reverse direction of the arrow A shown in FIG. 3 and the like). Forming. Further, the claw body 612 of the driving claw 61 protrudes toward the tooth part 621a of the claw wheel 62 with respect to the arm part 611, and the claw body 612 is inclined in a state of being in surface contact with the inclined surface 621k of the tooth part 621a. It can be slid along the surface 621k.

  When an operation force is applied to the operation unit 5 during the transfer operation, the nail body 612 of the drive claw 61 moves in the process of moving from the operation start end position (A) of the operation unit 5 toward the operation end position (B). The tooth portion 621a of the rotating ratchet wheel 62 can be contacted. At this time, since the claw wheel 62 rotates integrally with the take-up reel R2, the claw body 612 of the driving claw 61 is a surface on the rotation direction side of the claw wheel 62, that is, an inclined surface 621k. Can touch. In this contact state, the ratchet wheel 62 further rotates together with the take-up reel R2, and the drive claw 61 is guided along the inclined surface 621k in a state where the claw body 612 is in surface contact with the inclined surface 621k of the tooth portion 621a. However, it is biased in a direction away from the tooth portion 621a, and rotates in a direction away from the tooth portion 621a around the base end portion of the arm portion 611 rotatably held by the first holding portion 53 of the operation portion 5. Due to the rotation of the driving claw 61, the driving claw urging member 81 in the first urging posture (E) is temporarily buckled (see FIG. 7, the buckling of the driving claw urging member 81 in FIG. 7). The state is schematically shown), and when it exceeds the thought point, the state is switched to the second biasing posture (F), and as a result, the driving pawl 61 is in the retracted posture (D) in which the pawl wheel 62 cannot contact. Is held (see FIG. 8). Therefore, even when the operation unit 5 is touched accidentally or unexpectedly during the transfer operation, the driving claw 61 does not engage with the claw wheel 62, and the claw wheel 62 receives the rotational driving force from the driving claw 61. The situation of receiving can be avoided and the rotation of the take-up reel R2 during the transfer operation is not hindered. When the finger is released from the operation unit 5, the operation unit 5 self-returns to the operation start position (A) by the elastic return force of the operation unit urging member 7 (see FIG. 3), and accordingly, the drive claw 61 abuts against the second stopper 92 while moving to the driving claw actuation start position (G) while being held in the retracted position (D), and at this time, the driving claw urging member 81 is in the second urging position ( The first urging posture (E) is switched from F).

  As described above, the forced winding device 4 of the transfer tool 1 according to the present embodiment is integrated with the driving claw 61 that receives the reciprocating force and performs the reciprocating operation, and the take-up reel R <b> 2 to be biased by the driving claw 61. The driving claw 61 is selectively held in either a rotatable claw wheel 62 and an engagement posture (C) in which the claw wheel 62 can be driven or a retracted posture (D) in which the claw wheel 62 cannot be contacted. When the driving claw 61 moves forward, the driving claw 61 is brought into the engagement posture (C), and when the driving claw 61 moves backward, the driving claw 61 is switched to the retracted posture (D). Since the posture switching mechanism 9 is provided, the forward driving claw 61 is held in the engagement posture (C), and the driving claw 61 is driven by the driving claw 61 to rotate the take-up reel R2. And the driving claw 61 that moves backward is held in the retracted posture (D). Therefore, the driving claw 61 and the claw wheel 62 cannot come into contact with each other during the backward operation, and the frictional resistance that can occur between the driving claw 61 and the claw wheel 62 during the backward operation can be prevented or suppressed, and the take-up reel R2 In addition, an unnecessary load is not applied, and the smooth operation of the drive claw 61 and the claw wheel 62 and the take-up reel R2 can be ensured. Furthermore, since the driving claw 61 that moves backward is in a retracted position (D) where it cannot come into contact with the claw wheel 62, it is possible to prevent the engagement claw sound between the driving claw 61 and the claw wheel 62 during the backward movement of the driving claw 61. Can do. In addition, since the driving claw 61 that moves backward is in a retracted position, it is not necessary to provide a reverse rotation prevention mechanism for preventing reverse rotation of the claw wheel during the backward movement of the driving claw, and it is effective to simplify the structure. Can be aimed at.

  In particular, the selection holding mechanism 8 includes a first biasing posture (E) that biases the drive claw 61 in a direction in which the claw body 612 of the drive claw 61 contacts the claw wheel 62, and the claw body 612 of the drive claw 61 is clawed. A drive portion urging member 81 that can change its posture with a second urging posture (F) that urges the driving claw 61 in a direction away from the vehicle 62 is provided. The driving pawl 61 is held in the engagement posture (C) by taking the biasing posture (E), and the driving pawl 61 is taken by taking the second biasing posture (F) when the driving pawl 61 performs the backward operation. Selection to selectively hold the drive claw 61 in either the engagement posture (C) or the retraction posture (D) by the single drive claw urging member 81 because it is held in the retreat posture (D). A member that can constitute the holding mechanism 8 and holds the driving claw 61 in the engagement posture (C), and the driving claw Compared with a mode in which the members that hold 1 in the retracted posture (D) are individually required, the number of parts can be reduced and the structure can be simplified, and the first biasing posture (E) to the second can be reduced. The driving claw 61 can be held in the retracted position (D) by the urging force of the driving claw urging member 81 switched to the urging attitude (F), and the claw body 612 of the driving claw 61 contacts the claw wheel 62. Can be reliably prevented.

  In addition, when the posture switching mechanism 9 receives the reciprocating force and moves the drive claw 61 from the drive claw actuation start position (G) to the drive claw actuation end position (H), the posture switching mechanism 9 comes into contact with the drive claw 61 to drive The first stopper 91 that restricts the movement of the claw 61 in the same direction and the process of moving the drive claw 61 from the drive claw actuation end position (H) to the drive claw actuation start position (G) or the drive claw actuation start end position A second stopper 92 that contacts the driving claw 61 when it is moved to (G) and restricts further movement of the driving claw 61 in the same direction, and the driving claw 61 contacts the first stopper 91. The driving claw urging member 81 is changed in posture from the first urging posture (E) to the second urging posture (F), and when the driving claw 61 comes into contact with the second stopper 92, the driving claw urging force is applied. Changing the posture of the member 81 from the second biasing posture (F) to the first biasing posture (E) Therefore, the posture switching mechanism 9 can be realized with a relatively simple configuration, and the drive claw 61 is brought into contact with the first stopper 91 or the second stopper 92 so that the drive claw urging member 81 The posture change between the first biasing posture (E) and the second biasing posture (F) can be forcibly performed, and the engagement posture of the drive claw 61 can be achieved by changing the posture of the drive claw biasing member 81. The posture change from (C) to the retracted posture (D) and the posture change from the retracted posture (D) to the engaged posture (C) can be performed accurately.

  In particular, since the drive claw urging member 81 and the drive claw 61 are integrally formed, it is possible to effectively reduce the number of parts and the number of assembling steps, and further simplify the structure.

  In addition, the forced winding device 4 of the transfer tool 1 according to the present embodiment is used when a rotational driving force is applied to the claw wheel 62 from other than the driving claw 61 while the driving claw 61 is in contact with or engaged with the claw wheel 62. Since the operation force forced shut-off mechanism X that is the forced retraction mechanism of the present invention that switches the driving claw 61 to the retracted posture (D) is provided, an operation force is applied to the operation unit 5 without performing the transfer operation. In this case, it is possible to remove the slack of the tape by forcibly rotating the take-up reel R2 by the action of the transmission mechanism 6, while the operating force is unexpectedly applied to the operating portion 5 during the transfer operation. However, since the driving claw 61 is switched to the retracted position (D), the operating force is not transmitted to the take-up reel R2, and the transfer reel is not adversely affected to the smooth rotation of the take-up reel R2 during the transfer operation. Be excellent

  Furthermore, each tooth part 621a of the ratchet wheel 62 has an inclined surface 621k inclined at a predetermined angle in a direction away from an imaginary straight line L3 connecting the base end part of each tooth part 621a and the rotation center of the tooth wheel 62 at the tip part. The operation force forced shut-off mechanism X has the drive claw 61 in the engagement posture (C) by the rotation operation of the claw wheel 62 when the operation force is applied to the operation unit 5 during the transfer operation. The driving claw 61 is switched to the retracted position (D) by guiding the claw body 612 in a direction to escape from the tooth portion 621a while sliding along the inclined surface 621k of the tooth portion 621a. The driving claw 61 can be guided to the inclined surface 621k of the tooth portion 621a by using the rotation of the claw wheel 62 that rotates integrally with the take-up reel R2, and can be forcibly switched to the retracted position (D). Smooth and A stable switching operation can be secured.

  In addition, the selective holding mechanism when the operation force forced shut-off mechanism X is guided in the direction of moving away from the tooth portion 621a while sliding the claw body 612 of the drive claw 61 along the inclined surface 621k or when the guidance is finished. 8, the drive claw 61 is held in the retracted posture (D), so that the claw body 612 of the drive claw 61 is engaged with the tooth portion 621 a by holding the drive claw 61 in the retracted posture (D). Can be surely prevented.

  When the selective holding mechanism 8 guides the claw body 612 of the drive claw 61 in the direction away from the tooth portion 621a while sliding along the inclined surface 621k, or when the guidance is finished, the claw body 612 of the drive claw 61 is finished. Is provided with a driving claw urging member 81 that urges the driving claw 61 in a direction away from the claw wheel 62, so that the driving claw 61 is separated from the tooth portion 621a by the urging force of the driving claw urging member 81. It can be accurately moved in the direction to do.

  In particular, the process in which the driving claw urging member 81 guides the claw body 612 of the driving claw 61 in the first urging posture (E) in the direction away from the tooth portion 621a while sliding along the inclined surface 621k. Alternatively, when the guidance point is over, the thought point is exceeded, and when the guidance point is exceeded, the second biasing posture (F) is switched, so that the first biasing posture (E) to the second biasing posture ( The driving claw 61 can be held in the retracted position (D) by the urging force of the driving claw urging member 81 switched to F), and the driving claw 61 is reliably prevented from coming into contact with the claw wheel 62. Can do.

  In addition, the driving claw 61 projects the claw body 612 toward the tooth part 621a of the claw wheel 62 from other areas, and the claw body 612 is in surface contact with the inclined surface 621k of the tooth part 621a. Since it can be slid along the inclined surface 621k, the tip of the driving claw can be slid along the inclined surface in a state where the tip of the driving claw is in linear or point contact with the inclined surface. Compared with the aspect, the sliding state of the claw main body 612 and the inclined surface 621k of the driving claw 61 can be stabilized, and the pressing force received from the tooth portion 621a by the rotation of the claw wheel 62 is surface-received. It is possible to prevent the nail body 612 from being damaged early or deformed.

  Further, when the driving claw 61 is positioned at the driving claw actuation start position (G) without receiving a reciprocating force, the driving claw 61 is held in a standby posture (W) that cannot be engaged with the claw wheel 62. Unnecessary meshing noise does not occur during standby. In addition, the transfer tool main body 2 is configured such that the first half case 21 on the refill side holding at least the feeding reel R1 and the take-up reel R2 and the second half case 22 on the main body side are detachably assembled. Since the mode in which the forced winding device 4 is held in the second half case 22 is adopted, the drive claw 61 cannot be engaged with the claw wheel 62 unless the user applies an operating force to the operation unit 5. The operation of exchanging the first half case 21 on the refill side while being held in the posture (W) can be easily performed.

  The present invention is not limited to the embodiment described in detail above.

  For example, the drive claw only needs to perform a reciprocating operation by receiving a linear reciprocating force, and perform a reciprocating operation by receiving an operating force other than manual, mechanical or electrical operating force. It doesn't matter. In addition, when the operation unit can be manually operated, the operation unit is not limited to a press operation, and may be a rotation operation or a pull operation.

  Moreover, in the said embodiment, although the aspect comprised from the single member (drive claw urging member) was illustrated as a selection holding mechanism which selectively hold | maintains a drive claw in either an engagement attitude | position or a retracted attitude | position, The selective holding mechanism may include a dedicated member that holds the driving claw in the engaged posture and a dedicated member that holds the driving claw in the retracted posture.

  Furthermore, for example, a coil spring or rubber may be applied as the driving claw urging member constituting the selective holding mechanism instead of the leaf spring. Further, the driving claw urging member may be separate from the driving claw.

  Moreover, you may employ | adopt the aspect which enabled it to slide along an inclined surface in the state which the front-end | tip part of the drive nail contacted the inclined surface of the tooth | gear linearly or in a point.

  You may change suitably the shape of a driving nail, and the shape and number of a tooth part of a claw wheel.

  The transfer tool itself may not be a refill type capable of refilling the transfer tool body with a tape or the like, but may be a disposable type which cannot refill the tape with respect to the transfer tool body.

  Of course, a pressure-sensitive adhesive or an adhesive may be applied as the transfer product.

  Furthermore, the transmission device according to the present invention can be applied to structures other than the transfer tool.

  In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

The top view of the transfer tool provided with the forced winding apparatus which is a transmission device which concerns on one Embodiment of this invention. The figure which abbreviate | omits and shows the top view of the 2nd half case removed from the 1st half case in the embodiment. It is an effect explanatory view of a forced winding device concerning the embodiment, and is a figure showing a state where an operation part is in an operation start end position. FIG. 6 is an explanatory view of the same operation, and shows a state where an operation unit is moving from an operation start end position toward an operation end position. FIG. 5 is an explanatory diagram of the same operation, and shows a state where an operation unit is moving further toward an operation end position than in FIG. 4. FIG. 6 is an explanatory diagram of the same operation, and shows a state where an operation unit is at an operation end position. FIG. 9 is an explanatory diagram of the same operation, and shows a state in which an operation unit is moving from an operation start position to an operation end position during a transfer operation. FIG. 6 is an explanatory view of the same operation, and shows a state in which a driving claw that is activated during a transfer operation is switched to a retracted posture.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Transfer tool 2 ... Transfer tool main body 21 ... 1st half case 22 ... 2nd half case 3 ... Transfer head 4 ... Transmission device (forced winding device)
5 ... operation part 6 ... transmission mechanism 61 ... driving claw 62 ... claw wheel 612 ... tip end part (claw body) of driving claw
621a ... tooth portion 621k ... inclined surface 8 ... selective holding mechanism 81 ... drive claw biasing member 9 ... posture switching mechanism 91 ... first stopper 92 ... second stopper (C) ... engagement posture (D) ... retracted posture (E First biasing posture (F) Second biasing posture (G) Driving claw actuation start position (H) Driving claw actuation end position (W) Standby posture R1 Feed reel R2 Rotating body (winding) Reel)
X ... Forced retraction mechanism (operating force forced cutoff mechanism)

Claims (13)

A transmission device that rotates a rotating body in one direction by a linear reciprocating force,
A driving claw that performs the reciprocating operation in response to the reciprocating force;
A claw wheel provided on the rotating body so as to be integrally rotatable so as to be biased by the driving claw;
A selective holding mechanism that selectively holds the drive claw either in an engagement posture that can drive the claw wheel or in a retracted posture that cannot contact the claw wheel;
And a posture switching mechanism that switches the driving claw to the retracted posture when the driving claw moves to the retracted posture when the driving claw moves forward. Characteristic transmission device. The selection holding mechanism includes a first urging posture for urging the driving claw in a direction in which the tip end portion of the driving claw contacts the claw wheel, and a direction in which the tip end portion of the driving claw is separated from the claw wheel. A drive unit urging member capable of changing a posture between a second urging posture for urging the driving claw and taking the first urging posture when the driving claw moves in the forward direction; 2. The transmission device according to claim 1, wherein the driving claw is held in the retracted position by taking the second biasing attitude when the driving claw is moved backward. When the posture switching mechanism receives the reciprocating force and moves the drive claw from the drive claw actuation start position to the drive claw actuation end position, the posture switching mechanism contacts the drive claw, and the drive claw further moves in the same direction. A first stopper for restricting movement; and a process of moving the drive claw from the drive claw actuation end position to the drive claw actuation start end position or when the drive claw is moved to the drive claw actuation start end position; A second stopper for restricting further movement in the same direction, and when the driving claw comes into contact with the first stopper, the driving claw urging member is moved from the first urging posture to the second urging posture. The posture is changed to a posture, and the posture of the driving claw urging member is changed from the second urging posture to the first urging posture when the driving claw comes into contact with the second stopper. 2. The transmission device according to 2. The transmission device according to claim 2 or 3, wherein the drive claw urging member and the drive claw are integrally formed. 2. A forcible retraction mechanism that switches the drive claw to the retracted position when a rotational driving force is applied to the claw wheel from a position other than the drive claw in a state where the drive claw is in contact with or engaged with the claw wheel. 2. The transmission device according to 2, 3 or 4. Each tooth portion of the claw wheel has an inclined surface inclined at a predetermined angle in a direction deviating from a virtual straight line connecting the base end portion of each tooth portion and the rotation center of the claw wheel at the distal end portion,
When the forcible evacuation mechanism is applied with a rotational driving force other than the driving claw on the claw wheel, the tip of the driving claw in the engagement posture is moved by the rotation operation of the claw wheel. The transmission device according to claim 5, wherein the drive claw is switched to the retracted position by guiding in a direction away from the tooth portion while sliding along a surface. When the forcible retraction mechanism guides the driving claw in a direction away from the tooth part while sliding the tip part of the driving claw along the inclined surface, or when the guidance is finished, The transmission device according to claim 6, wherein the transmission device is held in the retracted posture. When the selection holding mechanism guides the guide claw in a direction away from the tooth portion while sliding the tip end portion of the drive claw along the inclined surface, or when the guide claw is finished, the tip end portion of the drive claw is The transmission device according to claim 7, further comprising a driving claw urging member that urges the driving claw in a direction away from the claw wheel. The driving claw urging member has a first urging posture that urges the driving claw in a direction in which the front end portion of the driving claw contacts the claw wheel, and the front end portion of the driving claw is separated from the claw wheel. The position of the driving claw can be changed between a second urging posture for urging the driving claw in the direction and the tip end portion of the driving claw is slid along the inclined surface in the state of the first urging posture. The process of guiding in a direction away from the tooth part while moving or when the guidance is finished, the thought point is exceeded, and when the thought point is exceeded, the second biasing posture is switched. Transmission device. The drive claw projects the tip part toward the tooth part of the claw wheel from other regions, and slides along the inclined surface in a state where the tip part is in surface contact with the inclined surface of the tooth part. The winding forcing device according to claim 6, 7, 8, or 9, wherein the forcing device is movable. The present invention is applied to a transfer tool in which a tape with a transfer material peeled off on one side is fed from a feeding reel and wound on a winding reel as the rotating body via a transfer head. A function of a forcible take-up device for eliminating slack of the tape that may occur between the supply reel and the take-up reel by forcibly rotating the take-up reel. The transmission device according to 5, 6, 7, 8, 9 or 10. When the drive claw is positioned at the drive claw actuation start position without receiving the reciprocating force, the drive claw is held in a standby posture that cannot be engaged with the claw wheel,
The transfer tool main body is a refill-side first half case holding at least the feeding reel and the take-up reel and a second half case on the main body side detachably assembled to each other. The transmission according to claim 11, wherein the transmission is held in a half case. The drive claw reciprocates due to an operation force applied to an externally operable operation unit. 11. The transmission device according to 11 or 12.

Images