JP7654940B2 - Transfer tool - Google Patents

Description

The present invention relates to a transfer tool.

Traditionally, there has been known a transfer tool that includes a supply reel that pays out a transfer tape with a transfer material such as glue attached thereto, a take-up reel that takes up the transfer tape that has been paid out from the supply reel, and a reel interlocking mechanism that interlocks the rotation of the supply reel and the take-up reel.

As shown in Patent Document 1, for example, some transfer tools of this type are provided with a reverse rotation prevention mechanism to prevent the reel from rotating backward. The reverse rotation prevention mechanism in the transfer tool shown in Patent Document 1 engages a single pawl on the payout gear (supply gear) that constitutes the reel interlocking mechanism with ratchet teeth on the inner surface of the case.

However, with this configuration, the single pawl that engages with the ratchet teeth is located away from the axis of the payout gear, which means that the gear with the single pawl is prone to become eccentric (tilted from the intended position) when rotating. If the gear becomes eccentric when rotating, this can cause the transfer tape to become distorted or loose, or the reel interlocking mechanism to malfunction.

To solve this problem, it has been considered to use two or more claws, but doing so poses the dilemma of louder noises during transfer operations, high resistance that can make the transfer operation less comfortable, and the presence of multiple claws that can spoil the appearance.

Patent No. 3834503

The present invention was made in light of the above circumstances, and aims to provide a transfer tool that can effectively suppress the problem of components becoming eccentric due to the structure for preventing reverse rotation of the reel.

That is, the present invention has the following configuration.

The invention described in claim 1 is a transfer tool in which a transfer tape paid out from a pay-out reel is wound onto a take-up reel via a transfer head, and the transfer tool is provided with a ratchet mechanism for preventing reverse rotation of either the pay-out reel or the take-up reel, the ratchet mechanism including first and second ratchet pawls provided on the reel, and a plurality of ratchet teeth provided on a support member of the reel with which the first and second ratchet pawls can engage and which are arranged at equal intervals in the circumferential direction, the first and second ratchet pawls being arranged so as not to engage with the ratchet teeth simultaneously, and the first and second ratchet pawls being arranged so as not to engage with the ratchet teeth simultaneously. a ratchet pawl having a shape that gradually narrows in a direction away from the center of rotation of the reel and having first and second tip portions that abut against the ratchet teeth, the ratchet teeth are convex toward the center of rotation of the reel , the multiple ratchet teeth are arranged spaced apart in the circumferential direction via a surface that extends in the circumferential direction and faces toward the center of rotation, and when the first tip portion is in contact with the ratchet tooth, the second tip portion is separated from the ratchet tooth, and when the second tip portion is in contact with the ratchet tooth, the first tip portion is separated from the ratchet tooth .

The invention described in claim 2 is the transfer tool described in claim 1, wherein the support member is a case that houses the reel.

The invention described in claim 3 is a transfer tool described in claim 1 or 2, wherein the first and second ratchet pawls are arranged symmetrically with respect to the center of rotation of the reel, and the ratchet teeth are arranged in an odd number in the circumferential direction.

The invention described in claim 4 is the transfer tool described in claim 1, 2 or 3, wherein the first and second ratchet pawls are provided on the winding reel.

The invention described in claim 5 is the transfer tool described in claim 1, 2, 3 or 4, further comprising a reel interlocking mechanism that interlocks the rotation of the supply reel and the take-up reel.

As described above, the present invention provides a transfer tool that can effectively prevent at least the problem of components becoming eccentric due to the configuration for preventing reverse rotation of the reel.

FIG. FIG. FIG. FIG. 3 is a cross-sectional view taken along line XX in FIG. 2. FIG. FIG. 4 is a partially enlarged left side view showing the ratchet teeth in the embodiment.

One embodiment of the present invention will be described below with reference to Figures 1 to 7.

In this embodiment, the present invention is applied to a transfer tool for transferring a transfer material, such as glue (not shown), to a transfer target surface, such as paper. The transfer tool winds the transfer tape T, which is paid out from a pay-out reel H, around a take-up reel I via a transfer head G.

The transfer tool comprises a transfer tool body A with a transfer head G at its tip, a slider B slidably held on the transfer tool body A, and a cap C rotatably supported on the slider B and shaped to cover the transfer head G. The cap C can take a covering position (D) in which it can cover the transfer head G and a retracted position (E) in which it is retracted from the transfer head G by sliding the slider B back and forth relative to the transfer tool body A.

The transfer tool is described in detail below.

The transfer tool main body A is equipped with a case F that rotatably houses a pay-out reel H and a take-up reel I inside, a transfer head G located at the front end of the case F, the pay-out reel H housed in the case F and wound with transfer tape T holding adhesive, a take-up reel I housed in the case F for taking up the transfer tape T that is paid out from the pay-out reel H and that has passed through the transfer roll g1 of the transfer head G, a reel interlocking mechanism W that interlocks the rotation of the pay-out reel H and the take-up reel I, and a ratchet mechanism K that is provided between the take-up reel I and the case F and that allows the take-up reel I to rotate forward while preventing it from rotating in the reverse direction.

The case F is made of synthetic resin capable of forming a storage space sp inside. The case F has left and right side walls 11, 21, a top wall 22 arranged between the upper ends of the left and right side walls 11, 21, a rear wall 23 arranged between the rear ends of the left and right side walls 11, 21, and a bottom wall 24 arranged between the lower ends of the left and right side walls 11, 21. An opening M is formed on the front side of the case F for leading the transfer tape T to the transfer head G and for introducing the transfer tape T via the transfer head G into the inside of the case F.

In this embodiment, the case F is composed of a first case member 1 having a left side wall 11, and a second case member 2 having a right side wall 21, an upper wall 22, a rear wall 23, and a lower wall 24. In other words, by combining the first case member 1 and the second case member 2, the case F is composed, which has a storage space sp that can store the payout reel H, the winding reel I, and the reel interlocking mechanism W.

A first support shaft j1 protrudes from the inner surface of the left side wall 11 and rotatably supports the payout reel H and the payout gear 3 that constitutes the reel interlocking mechanism W. In addition, a second support shaft j2 protrudes from the left side wall 11 and rotatably supports the winding reel I and the winding gear 4 that constitutes the reel interlocking mechanism W.

The winding gear 4 is integrally provided on the left side of the winding reel I. The first support shaft j1 and the second support shaft j2 extend in a direction substantially perpendicular to the left side wall 11. The first support shaft j1 is provided behind the second support shaft j2.

A first locking claw t1 is provided at the rear end of the left side wall 11 and extends toward the second case member 2. The first locking claw t1 is capable of engaging with a first claw receiving portion u1 provided on the rear wall 23 of the second case member 2.

A second claw receiving portion (not shown) is provided at the lower part of the front end of the left side wall 11. A second locking claw t2 provided on the bottom wall 24 of the second case member 2 can engage with the second claw receiving portion.

In other words, the first case member 1 and the second case member 2 rotatably support the payout gear 3, the payout reel H, and the winding reel I integrated with the winding gear 4 in the storage space sp by engaging the first and second locking claws t1 and t2 with the first and second claw receiving portions u1, respectively.

The payout gear 3 and the payout reel H are rotatably supported on the first support shaft j1. The take-up reel I, which is integrated with the take-up gear 4, is rotatably supported on the second support shaft j2.

The left side wall 11 is provided with a guide groove (not shown) that engages with the cap C and changes the position of the cap C so that it can take the covering position (D) and the retracted position (E).

The right side wall 21 is provided on its inner surface with a first boss b1 capable of holding the tip of the first support shaft j1, and a second boss b2 capable of holding the tip of the second support shaft j2. The first boss b1 is shaped so that it can be fitted onto the tip of the first support shaft j1 erected from the left side wall 11, and the second boss b2 is shaped so that it can be fitted onto the tip of the second support shaft j2 erected from the left side wall 11.

The upper wall 22 is provided with a groove-shaped slider support portion 22a that can support the slider B so that it can slide in the forward and backward directions.

The transfer head G is mainly composed of a transfer roll g1 that presses the transfer tape T against the surface to be transferred, and left and right support parts g2 that are plate-shaped and rotatably support the transfer roll g1. The left and right support parts g2 are supported by the left side wall 11.

The payout reel H comprises a cylindrical payout reel body h1 on which the transfer tape T is wound, and left and right flanges h2 provided on both left and right sides of the payout reel body h1. The payout reel body h1 has a central hole ca penetrating in the left-right direction that engages with the shaft 32 of the payout gear 3 that constitutes the reel interlocking mechanism W.

The take-up reel I winds up the transfer tape T sent out from the unwinding reel H via the transfer head G. The take-up reel I is equipped with a cylindrical take-up reel body i1 that winds up the transfer tape T, left and right flanges i2, i3 provided on both left and right ends of the take-up reel body i1, and a cylindrical boss i4 that protrudes outward from the right flange i3 with its axis js aligned with the take-up reel body i1.

A shaft hole ja is formed in the center of the winding reel body i1, which penetrates in the left-right direction and rotatably fits onto the second support shaft j2. In addition, a ratchet mechanism K is provided between the right side of the winding reel I and the right side wall 21 of the second case member 2, as described in detail later, to prevent the winding reel I from rotating in reverse.

The reel interlocking mechanism W includes a payout gear 3 that is rotatably supported on the first support shaft j1 and can rotate together with the payout reel H, and a winding gear 4 that is rotatably supported on the second support shaft j2 and can rotate together with the winding reel I.

The payout gear 3 is comprised of a disk-shaped payout gear body 31 with multiple teeth on its outer periphery that mesh with the winding gear 4, a shaft portion 32 that stands upright from the center of the payout gear body 31 and fits into a central hole ca in the payout reel H, and a slip-out prevention portion 33 that is provided at the tip of the shaft portion 32 and engages with the payout reel H to prevent the payout reel H from slipping out of the shaft portion 32.

A sliding mechanism S is provided between the center hole ca of the payout reel H and the shaft portion 32 of the payout gear 3, which allows relative rotation between the payout reel H and the payout gear 3 when a torque equal to or greater than a certain level is applied.

The winding gear 4 has multiple teeth on its outer periphery that mesh with the payout gear 3. The winding gear 4 is integrally mounted on the left side of the winding reel I, with its axis js aligned with that of the winding reel I.

In this embodiment, the transfer tool has a ratchet mechanism K between the winding reel I, which is the reel, and the right side wall 21 of the case F, which is the support member, to prevent the winding reel I from rotating in the reverse direction and to allow it to rotate in the forward direction.

The ratchet mechanism K includes first and second ratchet pawls k1 and k2 provided on the right side of the winding reel I, and a plurality of ratchet teeth R that are provided on the inner surface of the right side wall 21 of the case F and that are equally spaced in the circumferential direction and with which the first and second ratchet pawls k1 and k2 can engage. In other words, the first and second ratchet pawls k1 and k2 are provided on the winding reel I, and the ratchet teeth R are provided on the case F.

The ratchet mechanism K in this embodiment is arranged so that the two pawls, i.e. the first and second ratchet pawls k1 and k2, do not simultaneously engage with the ratchet teeth R. In other words, the first and second ratchet pawls k1 and k2 are arranged symmetrically with respect to the axis js, which is the center of rotation of the winding reel I. The ratchet teeth R that can engage with the first and second ratchet pawls k1 and k2 are arranged at equal intervals in an odd number (15 in this embodiment) in the circumferential direction.

The base ends of the first and second ratchet pawls k1 and k2 are connected to the right flange i3 and annular boss i4, respectively, of the winding reel I.

The first and second ratchet pawls k1, k2 are provided with first and second base walls k11, k21 that are integrally connected to the right flange i3 and boss i4, first and second arm portions k12, k22 that are cantilevered on the first and second base walls k11, k21 and curved along the outer periphery of the annular boss i4, and first and second tip portions k13, k23 that protrude from the tips of the first and second arm portions k12, k22 and abut against the ratchet teeth R.

The first and second foundation walls k11 and k21 are substantially rectangular. The first foundation wall k11 and the second foundation wall k21 are arranged symmetrically with respect to the axis js of the winding reel I.

The first and second arm portions k12 and k22 can be positioned away from the right flange portion i3 and boss portion i4 of the winding reel I. The first and second arm portions k12 and k22 extend integrally from the first and second base walls k11 and k21.

The first and second tip portions k13, k23 have a shape portion that gradually narrows in width in a direction away from the axis js in a side view. The first and second tip portions k13, k23 are formed with an inclined surface n1 that is continuous with the outer peripheral surfaces of the first and second arm portions k12, k22 and can slide against the ratchet teeth R during forward rotation, and an upright surface n2 that is located on the tip side of the inclined surface n1, is approximately perpendicular to the rotation direction of the winding reel I, and can abut against the ratchet teeth R during reverse rotation.

The ratchet teeth R are provided in an odd number (15 locations) at equal intervals in the circumferential direction. In other words, the ratchet teeth R are arranged in an annular shape based on the center corresponding to the axis js. The ratchet teeth R form a mountain shape that protrudes toward the center of rotation of the winding reel I, i.e., the axis js.

The ratchet teeth R are provided with an inclined first abutment surface r1 against which the inclined surfaces n1 of the first and second ratchet pawls k1 and k2 can abut when the winding reel I rotates forward, and an inclined second abutment surface r2 against which the upright surfaces n2 of the first and second ratchet pawls k1 and k2 can abut when the winding reel I rotates reversely. The second abutment surface r2 has a steeper slope than the first abutment surface r1. As shown in this embodiment, when an odd number of ratchet teeth R are arranged at equal intervals in the circumferential direction, the odd number of ratchet teeth R are not located symmetrically with respect to the center of rotation of the winding reel I.

When the winding reel I rotates forward, the ratchet mechanism K causes the inclined surfaces n1 of the first and second tip portions k13, k23 of the first and second ratchet pawls k1, k2 to abut against the first abutment surface r1 of the ratchet teeth R. The first and second tip portions k13, k23 of the ratchet pawls k1, k2 are guided by the first abutment surface r1 and attempt to move in the direction of the axis js. At this time, the first and second arm portions k12, k22 supporting the first and second tip portions k13, k23 temporarily elastically deform, allowing the first and second tip portions k13, k23 to move. In this way, when the winding reel I rotates forward, the first and second ratchet pawls k1, k2 can overcome the ratchet teeth R that they are abutting.

On the other hand, when the winding reel I is about to rotate in reverse, the upright surfaces n2 of the first and second tip portions k13, k23 of the first and second ratchet pawls k1, k2 abut locally (at a point) against the second abutment surface r2 of the ratchet teeth R without abutting the second abutment surface r2 in a planar manner. At this time, the first and second tip portions k13, k23 of the ratchet pawls k1, k2 cannot obtain the guiding action of the second abutment surface r2 with normal reverse torque. In this way, the winding reel I is appropriately prevented from rotating in reverse.

As described above in detail, the transfer tool shown in this embodiment is designed to wind the transfer tape T, which is unwound from the unwound reel H, onto the take-up reel I via the transfer head G.

The ratchet mechanism K, which prevents the winding reel I from rotating in reverse, is equipped with first and second ratchet pawls k1 and k2 provided on the winding reel I, which is the reel, and a plurality of ratchet teeth R that are provided on the right side wall 21 of the case F, which is the support member, and that are arranged at equal intervals in the circumferential direction and with which the first and second ratchet pawls k1 and k2 can engage.

The first and second ratchet pawls k1 and k2 that make up the ratchet mechanism K are arranged so that they do not simultaneously engage with the ratchet teeth R.

For this reason, the transfer tool shown in this embodiment can effectively suppress the problem that the winding reel I is easily eccentric due to the configuration for preventing the winding reel I from rotating in reverse.

In other words, by arranging the two ratchet claws, the first and second ratchet claws k1 and k2, at predetermined positions, the first and second ratchet claws k1 and k2 can alternately engage with the ratchet teeth R when transferring the adhesive attached to the transfer tape T to the target surface.

Therefore, compared to a conventional ratchet mechanism that uses only one ratchet pawl that is positioned off-center relative to the axis, the winding reel I is less likely to become off-center relative to the second support shaft j2.

The transfer tool of this embodiment can therefore effectively prevent problems such as distortion or loosening of the transfer tape T or malfunction of the reel interlocking mechanism W during transfer operations, which are caused by the configuration for preventing the reel I from rotating in reverse.

In addition, the first and second ratchet pawls k1 and k2 that make up the ratchet mechanism K are arranged so as not to simultaneously engage with the ratchet teeth R, which makes it possible to suitably suppress the resistance force that prevents forward rotation of the transfer tool during the transfer operation.

Furthermore, the first and second ratchet pawls k1, k2 that constitute the ratchet mechanism K are arranged so as not to engage with the ratchet teeth R at the same time, so that the sound generated when the first ratchet pawl k1 engages with the ratchet teeth R and the sound generated when the second ratchet pawl k2 engages with the ratchet teeth R are appropriately suppressed from occurring simultaneously and becoming loud.

In addition, because the ratchet mechanism K is capable of alternately engaging the first and second ratchet pawls k1, k2 with the ratchet teeth R, the total number of ratchet teeth R arranged at equal intervals in the circumferential direction can be set to a relatively small number. In other words, compared to conventional mechanisms in which one ratchet pawl is engaged with multiple ratchet teeth, the ratchet mechanism K in this embodiment can set the total number of ratchet teeth R to half without compromising the anti-reverse function.

This makes it less likely for users to get the impression that the ratchet teeth are too densely packed and cluttered, and instead makes it easier to give a clean appearance that creates a favorable impression.

In addition, each ratchet tooth R can be easily formed to be relatively large, reducing the need to form sharp angles that are prominent in known ratchet teeth. As a result, with the ratchet mechanism K of this embodiment, the shape of the ratchet teeth R can be designed easily so that they can easily come out of the mold during manufacturing, making it not only easy to process but also less likely to produce manufacturing defects.

The first and second ratchet pawls k1, k2 are provided on the winding reel I, and the ratchet teeth R are provided on the case F, which is the support member, so it is easy to precisely mold the first and second ratchet pawls k1, k2 and the ratchet teeth R into a predetermined shape.

The first and second ratchet pawls k1 and k2 are arranged symmetrically with respect to the center of rotation, i.e., the axis js, of the winding reel I, and an odd number of ratchet teeth R are provided in the circumferential direction.

For this reason, the first and second ratchet pawls k1, k2 are provided in positions that can suitably suppress eccentricity of the winding reel I. Moreover, this configuration allows for flexible design so that the first and second ratchet pawls k1, k2 do not simultaneously engage with the ratchet teeth R.

In other words, if the ratchet mechanism K is configured so that the first and second ratchet pawls k1, k2 are symmetrically arranged with respect to the axis js of the winding reel I and an odd number of ratchet teeth R are arranged in the circumferential direction, it is easy to set the timing at which the first ratchet pawl k1 engages with the ratchet teeth R and the timing at which the second ratchet pawl k2 engages with the ratchet teeth R to not coincide.

It is equipped with a reel interlocking mechanism W that interlocks the rotation of the unwinding reel H and the winding reel I. In this embodiment, as described above, the ratchet mechanism K is configured so that the winding reel I, which is integral with the winding gear 4, is less likely to become eccentric with respect to the axis js. This makes the reel interlocking mechanism W less likely to malfunction, and allows the desired operation to be properly achieved.

The present invention is not limited to the embodiments described above.

The transfer tool may be any tool that transfers the transfer material to the transfer target. In other words, the transfer material is not limited to the glue shown in this embodiment, but may be, for example, a correction agent for correction (correction tape) or a decorative agent for decoration (decorative tape).

The transfer tool is not limited to a disposable type that cannot be used after the transfer tape runs out. The transfer tool may be a refill-replaceable type that is configured so that a refill holding the transfer tape can be attached to the case.

The support member for the reel is not limited to the case, and may be, for example, a support plate for the refill. That is, one example of a refill is one that includes a support plate as a support member, and a payout reel and a winding reel that are rotatably supported on the support plate. The ratchet mechanism for the refill may be provided between the payout reel and the support plate as a support member, or may be provided between the winding reel and the support plate as a support member.

The ratchet mechanism is not limited to being provided on the take-up reel and the support member for the take-up reel, but may also be provided on the pay-out reel and the support member for the pay-out reel.

The ratchet mechanism is not limited to the embodiment described above as long as the first and second ratchet pawls do not simultaneously engage with the ratchet teeth. For example, the first and second ratchet pawls may be arranged asymmetrically with respect to the center of rotation of the reel, and the ratchet teeth with which the first and second ratchet pawls engage may be arranged in an even or odd number in the circumferential direction. In other words, whether the number of ratchet teeth is even or odd, the desired purpose can be achieved as long as the positions of the first and second ratchet pawls are set to predetermined asymmetric positions that prevent them from simultaneously engaging with the ratchet teeth.

In addition to the first and second ratchet pawls, other ratchet pawls may be added. In other words, the ratchet mechanism may have three or more ratchet pawls.

The specific configuration of each part is not limited to the above embodiment, and various modifications are possible without departing from the spirit of the present invention.

F...Case (support member)
G...Transfer head H...Reel for feeding I...Reel for winding (reel)
K...Ratchet mechanism k1, k2...First and second ratchet pawls R...Ratchet teeth T...Transfer tape

Claims (5)

A transfer tool in which a transfer tape is fed from a feed reel, and the transfer tape is wound onto a take-up reel via a transfer head,
The reel is provided with a ratchet mechanism for preventing reverse rotation of either the reel for payout or the reel for take-up,
the ratchet mechanism includes first and second ratchet pawls provided on the reel, and a plurality of ratchet teeth provided on a support member of the reel with which the first and second ratchet pawls can engage, the ratchet teeth being equally spaced in a circumferential direction,
the first and second ratchet pawls are provided so as not to simultaneously engage with the ratchet teeth,
the first and second ratchet pawls each have a shape portion that gradually narrows in a direction away from the rotation center of the reel, and each have a first and second tip portion that abuts against the ratchet teeth,
The ratchet teeth are convex toward the center of rotation of the reel ,
the plurality of ratchet teeth are arranged spaced apart in the circumferential direction via a surface that extends in the circumferential direction and faces the rotation center direction,
A transfer tool in which, when the first tip portion is in contact with the ratchet teeth, the second tip portion is separated from the ratchet teeth, and, when the second tip portion is in contact with the ratchet teeth, the first tip portion is separated from the ratchet teeth . The transfer tool of claim 1, wherein the support member is a case that houses the reel. The transfer tool according to claim 1 or 2, wherein the first and second ratchet pawls are arranged symmetrically with respect to the center of rotation of the reel, and the ratchet teeth are arranged in an odd number in the circumferential direction. A transfer tool as described in claim 1, 2 or 3, wherein the first and second ratchet pawls are provided on the winding reel. A transfer tool as claimed in claim 1, 2, 3 or 4, which is provided with a reel interlocking mechanism that interlocks the rotation of the supply reel and the winding reel.

Images