JP3958596B2 - Film transfer tool - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is a coating method for transferring a coating film for correction or glue applied to a transfer tape fed from a supply reel onto a paper surface or the like by gripping and moving backward while pressing the paper surface or the like. The present invention relates to a film transfer tool, and more particularly to a coating film transfer tool having a novel reverse rotation prevention mechanism.
[0002]
[Prior art]
When using a film transfer tool, the transfer tape may be accidentally moved in the reverse direction, or when carrying a film transfer tool that uses the transfer tape halfway, the transfer tape may be reversed due to vibration or the like. In order to prevent this, a reverse rotation prevention mechanism is provided in the supply gear or the take-up gear.
[0003]
FIG. 10 is an exploded perspective view of a conventional coating film transfer tool (01), FIG. 11 is a plan view of an essential part in an assembled state on the supply reel side in the coating film transfer tool (01) shown in FIG. It is the principal part longitudinal cross-sectional view of an assembly state similarly.
[0004]
A case is formed by opening the upper and lower case members (02) and (03), which are a flat pair of open containers, facing each other and integrating them.
The front ends of the upper and lower case members (02) and (03) are notched to have openings (04) and (05), and the transfer head (06) projects from the openings.
[0005]
Support shafts (09) and (010) of the supply gear (07) and the take-up gear (08) are erected on the inner surface of the lower case member (03). A winding button (011) is rotatably fitted on the support shaft (09) of the supply gear (07), and the supply gear (07) winds up the lower surface of the winding button (011). The button (011) is engaged with the locking claw (011a) at the lower end of the button (011a) and is rotatably fitted, and the compression coil spring (012) is connected to the lower surface of the upper peripheral edge (011b) of the winding button (011). A slip mechanism is provided between the upper surface of the supply gear (07) so that a constant rotational torque can be transmitted between the take-up button (011) and the supply gear (07).
[0006]
The upper peripheral edge (011b) of the winding button (011) is provided with a plurality of outward locking pieces (011c), and these outward locking pieces (011c) are provided inwardly on the inner surface of the supply reel (013). Rotating torque is transmitted between the winding button (011) and the supply reel (013) by locking with the locking piece (013a).
[0007]
The take-up gear (08) meshes with the supply gear (07), and a take-up reel (014) is integrally formed on the upper surface of the take-up gear (08).
[0008]
The transfer tape (015) wound around the supply reel (013) is fed out, reversed at the tip of the transfer head (06), and wound around the take-up reel (014).
[0009]
An anti-reverse mechanism is provided on the inner surface (03a) of the lower case member (03) on the inner surface (03a), concentrically with the support shaft (09) of the supply gear (07). 016a) and a ratchet claw (018) provided on the lower surface of the supply gear (07) via an arm (017) on the lower surface of the supply gear (07). The supply gear (07) and the supply reel (013) are rotated only in the direction of feeding out the transfer tape (015) and are not rotated in the reverse direction. is there.
[0010]
13 is an enlarged sectional view taken along line XIII-XIII in FIG.
In the conventional coating film transfer tool (01), a ratchet claw (018) is provided at the tip of an arm (017) that is linear in a side view in which the base (017a) is fixed to the supply gear (07), In use, the intermediate portion of the linear arm (017) is hardly deformed, and the ratchet pawl (018) is moved into the ratchet ring by the slight hinge action of the base (017a) of the arm (017). Both the state indicated by the imaginary line over the tooth tip (016b) of the engaging tooth (016a) in (016) and the state indicated by the solid line where the ratchet pawl (018) is engaged with the ratchet tooth ring (016) It is designed to operate in the range between.
[0011]
[Problems to be solved by the invention]
However, the conventional reverse rotation preventing mechanism has the following problems.
The ratchet tooth ring (016) is integrally formed with the support shaft (09) (010) when the lower case member (03) is formed. At this time, the mold is removed in the vertical direction. In order to prevent reverse rotation, the angle of the tooth surface of the engaging tooth (016a) in the ratchet tooth ring (016) with which the ratchet pawl (018) engages is acute with respect to the inner surface of the lower case member (03). It cannot be molded into. Therefore, if the load in the direction of rotating the supply reel (013) is large, the ratchet pawl (018) may move upward and disengage from the ratchet tooth ring (016).
[0012]
In order to prevent the disengagement, the ratchet pawl (018) provided at the tip of the arm (017) is pressed against the ratchet tooth ring (016) with a force of an appropriate magnitude.
For this reason, the resistance of the ratchet mechanism when using the coating film transfer tool (01) is large, which is not only a considerable load, but also the ratchet sound is loud and may be bothersome.
[0013]
In view of the present situation, the present invention reduces the resistance of the ratchet mechanism when using the coating film transfer tool, reduces the load on the user, reduces the ratchet sound, and rotates the supply reel in the reverse direction. An object of the present invention is to provide a coating film transfer tool in which the ratchet function is not impaired even when the load on the film is large.
[0014]
[Means for Solving the Problems]
According to the present invention, the above problem is solved as follows.
(1) After a supply reel and a take-up reel are arranged in a case having an opening at the front end, a transfer head is projected from the opening, and the transfer tape fed from the supply reel is reversed at the tip of the transfer head In the coating film transfer tool that is wound around the take-up reel driven by transmitting the rotation torque of the supply reel through the supply gear and the take-up gear, the supply gear or the take-up gear is provided on the inner surface of the case. A ratchet tooth ring is provided concentrically, and a base portion is fixed to the supply gear or the take-up gear, and an elastic deformation portion having a curved portion is provided at an intermediate portion, and is engaged with the ratchet tooth ring. By providing the ratchet pawl, a reverse rotation prevention mechanism for the supply reel or the take-up reel is formed.
[0015]
( 2 ) In the above item ( 1 ), the ratchet tooth ring has engaging teeth that are vertically upward with respect to the inner surface of the case, the ratchet claw is downward, and the curved portion of the arm is upward. As a convex curve, the ratchet pawl provided at the tip of the arm is engaged with the ratchet tooth ring in a pressure contact state.
[0016]
( 3 ) In the above item ( 1 ), the ratchet tooth ring is concentric with the supply gear or the take-up gear and has radially inward engaging teeth, and the ratchet pawl is radially outward. In addition, the curved portion of the arm is curved inwardly in the radial direction, and the ratchet pawl provided at the tip of the arm is engaged with the ratchet tooth ring in a pressure contact state.
[0017]
( 4 ) In any one of the above items ( 1 ) to ( 3 ) , a plurality of curved portions are provided in an intermediate portion of the arm.
[0018]
( 5 ) In any one of the above items ( 1 ) to ( 3 ) , the curved portion in the intermediate portion of the arm is formed so that the entire arm has an arcuate shape.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
1 is an exploded perspective view of a coating film transfer tool showing an embodiment of the present invention, and FIG. 2 is an engagement of a ratchet claw and a ratchet tooth ring in an assembled state on the supply reel side in the coating film transfer tool shown in FIG. It is a principal part longitudinal cross-sectional view which shows this.
1 to 9, parts corresponding to the reference numerals in FIGS. 10 to 13 are denoted by the same reference numerals excluding “0”, and the description thereof is omitted.
[0020]
The reverse rotation prevention mechanism in the coating film transfer tool (1) according to the present invention is characterized in that an elastic deformation portion is provided at an intermediate portion of an arm (17) provided with a ratchet claw (18) at the tip.
As the elastically deforming portion, it is most preferable that a bending portion is provided in the middle portion of the arm (17) and the bending portion is used as an elastically deforming portion.
Accordingly, in the following embodiments, the elastic deformation portion will be described by being represented by a bending portion.
Examples of the elastically deformable portion include those in which the intermediate portion of the arm is made thin, narrow, perforated, corrugated, etc., and can be easily elastically deformed, in addition to providing a curved portion at the intermediate portion of the arm.
[0021]
As a reverse rotation prevention mechanism in the coating film transfer tool (1) of the first embodiment of the present invention, a concentric shape with the support shaft (9) of the supply gear (7) is formed on the inner surface (3a) of the lower case member (3). In addition, a ratchet tooth ring (16) having engaging teeth (16a) vertically upward with respect to the inner surface (3a) is provided, and a base (17a) is fixed to the lower surface of the supply gear (7), A ratchet claw (18) is provided at the tip of the arm (17) provided with a curved portion (17b) which is convex upward and can be easily elastically deformed, and the ratchet claw (18) is connected to the ratchet tooth ring (16). And those engaged in a pressure contact state.
[0022]
As described above, the arm (017) in the conventional coating film transfer tool (01) was linear in a side view as shown in FIG. On the other hand, in the present invention, by providing an upward convex curved portion (17b) at the intermediate portion of the arm (17), the curved portion (17b) has a hinge action, and the arm (17) is elastic. It is designed to be easily deformed.
Therefore, when the coating film transfer tool (1) is used, the arm (17) is easily elastically deformed and the ratchet pawl (18) is engaged with the ratchet tooth ring (16) as shown by the phantom line in FIG. The tip (16b) of the tooth (16a) can be easily overcome.
Therefore, the resistance of the ratchet mechanism during use is small, and the load on the user can be reduced.
[0023]
Further, since the arm (17) is easily elastically deformed, the ratchet pawl (18) returns to the engaged state again after getting over the tooth tip (16b) of the engaging tooth (16a) in the ratchet tooth ring (16). The restoring stress at the time is also relatively small, so the ratchet noise is also reduced.
[0024]
FIG. 3 is a view corresponding to FIG. 2 showing another embodiment.
In the present embodiment, two upward curved curved portions (19a) and (19b) are provided in the middle portion of the arm (19), and a ratchet claw (20) is formed at the tip of the arm (19). is there. By providing a plurality of curved portions (19b) and (19c), the arm (19) is more easily elastically deformed by these hinge actions, and the resistance of the ratchet mechanism and the ratchet noise during use are further reduced.
[0025]
FIG. 4 is a view corresponding to FIG. 2 showing still another embodiment.
In the present embodiment, the curved portion (21a) at the intermediate portion of the arm (21) is formed so that almost the whole of the arm (21) is an upward convex arcuate shape, and the tip of the arm (21) is formed. A ratchet pawl (22) is provided.
Also in this embodiment, the same effects as in the above-described embodiment can be obtained.
[0026]
FIG. 5 is an exploded perspective view of a coating film transfer tool (1A) showing still another embodiment, and FIG. 6 is a main part of the assembled state on the supply reel side in the coating film transfer tool (1A) shown in FIG. FIG. 7 is a longitudinal sectional view of the main part in the assembled state, and FIG. 8 is a perspective view of the main part showing the engagement of the ratchet pawl and the ratchet tooth ring in the assembled state.
[0027]
The ratchet tooth ring (23) in this embodiment is engaged with the support shaft (9) of the supply gear (7) concentrically and radially inwardly on the inner surface (3a) of the lower case member (3). Teeth (23a) are disposed and formed.
In the illustrated embodiment, on the inner surface (3a) of the lower case member (3), a projecting ring concentric with the support shaft (9) of the supply gear (7) is provided, and the inner circumferential surface thereof has a radial direction. The ratchet tooth ring (23) is formed by uniformly arranging the inward engagement teeth (23a).
[0028]
As another embodiment, for example, on the inner surface (3a) of the lower case member (3), a concave circle is provided concentrically with the support shaft (9) of the supply gear (7), and the inner peripheral surface thereof is provided. Engaging teeth may be provided.
The ratchet tooth ring (23) can be easily integrally formed when the lower case members (2) and (3) are formed of synthetic resin.
[0029]
The ratchet pawl (25) is arranged in the radial direction of the supply gear (7) so as to engage the ratchet tooth ring (23) at the tip of the arm (24) having the base (24a) fixed to the supply gear (7). It is provided outward.
The ratchet pawl (25) and the arm (24) are also made of synthetic resin and are integrally formed with the supply gear (7).
[0030]
As shown in FIG. 6, the arm (24) is provided with a curved portion (24b) convex inward in the radial direction of the supply gear (7) at the intermediate portion thereof, and the hinge of the curved portion (24b) is provided. By the action, the tip of the arm (24) is elastically biased outward in the radial direction. Therefore, the ratchet pawl (25) provided at the tip of the arm (24) is engaged with the engagement tooth (23a) of the ratchet tooth ring (23) in a good pressure contact state.
By providing the curved portion (24b) on the arm (24), the same effects as those of the above-described embodiment can be obtained.
[0031]
In the present embodiment, the following advantages are also exhibited. That is, as shown in FIG. 8, the ratchet tooth ring (23) has a direction of the engagement teeth (23a) in the ratchet tooth ring (23) parallel to the inner surface (3a) of the lower case member (3). The tooth surface (23b) of the ratchet tooth ring (23) is perpendicular to the inner surface (3a) of the lower case member (3) and prevents reverse rotation without causing any trouble in the vertical removal of the mold. The angle of the tooth surface (23b) of the ratchet tooth ring (23) with which the ratchet pawl (25) engages is acute with respect to the tangential (23c) direction of the circumference of the ratchet tooth ring (23) ( α).
Therefore, even when the load in the direction of rotating the supply reel (13) is large, the ratchet pawl (24) and the ratchet tooth ring (23) are not disengaged, and the reliability of the ratchet function is improved. Can do.
[0032]
Further, as shown in FIG. 7, the ratchet pawl (25) extends from the tip of the arm (24) whose base is fixed to the lower surface of the supply gear (7) toward the inner surface (3a) of the lower case member (2). It protrudes and is provided radially outward.
Since the ratchet pawl (25) protrudes as described above, it can be easily and satisfactorily engaged with the ratchet tooth ring (23).
[0033]
FIG. 9 is a view corresponding to FIG. 6 showing still another embodiment.
A ratchet pawl (27) is provided at the tip of an arm (26) provided with two curved portions (26a) and (26b) convex inward in the radial direction of the supply gear (7) at the intermediate portion.
By providing the plurality of curved portions (26a) and (26b) in this way, a better effect can be obtained.
[0034]
In the above embodiment, the reverse rotation prevention mechanism is provided on the supply gear (7) side, but this may be provided on the take-up gear (8) side.
However, in general, the effect of preventing reverse rotation is greater when the reverse rotation prevention mechanism is provided on the supply gear (7) side.
[0035]
In other words, an unused transfer tape (15) is wound around the supply reel (13), and a transfer reel after transfer of the coating film onto the paper or the like is wound around the take-up reel (14). In comparison, the diameter of the supply reel (13) is made larger than the diameter of the take-up reel (14) by considering the thickness of the coating film.
Accordingly, the supply gear (7) has a larger diameter than the take-up gear (8).
For this reason, it is more effective to prevent the reverse rotation from being provided on the supply gear (7) side than on the take-up gear (8) side because of the rotational ratio of both gears.
[0036]
【The invention's effect】
According to the present invention, the following effects can be achieved.
(1) According to the invention described in claim 1, the presence of the elastically deforming portion in the intermediate portion of the arm reduces the resistance of the ratchet mechanism when using the coating film transfer tool, and reduces the load on the user. , Ratchet sound can be reduced.
Furthermore, the ratchet function is not impaired by the presence of the elastically deformable portion, and a practically sufficient ratchet function can be obtained.
[0037]
In addition, both the resistance of the ratchet mechanism and the ratchet sound can be effectively reduced by the bending portion, and the bending portion has a large resistance force against the load in the direction of rotating the supply reel in the reverse direction. Therefore, a sufficient ratchet function can be obtained.
[0038]
( 2 ) According to the invention described in claim 2 , the effect of the item (1) can be easily obtained only by changing the arm in the conventional coating film transfer tool to one provided with a curved portion.
[0039]
( 3 ) According to the invention described in claim 3 , in addition to the effect of the item (1), the following effect can be obtained.
That is, the ratchet tooth ring is integrally formed when the lower case member is formed. However, since the direction of the engagement teeth in the ratchet tooth ring is parallel to the inner surface of the lower case member, When preventing reverse rotation without causing any trouble in removal, the angle of the tooth surface of the ratchet tooth ring with which the ratchet claw is engaged is formed with an acute angle with respect to the tangential direction of the circumference of the ratchet tooth ring. Can do.
Therefore, even when the load in the direction of rotating the supply reel is large, the ratchet pawl and the ratchet tooth ring are not disengaged, and the reliability of the ratchet function can be effectively improved.
[0040]
( 4 ) According to the invention described in claim 4 , the effect of the item (1) can be obtained more satisfactorily.
[0041]
( 5 ) According to the invention described in claim 5 , the same effect as in the above ( 2 ) can be obtained.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a coating film transfer tool showing an embodiment of the present invention.
2 is a longitudinal sectional view of a main part showing engagement of a ratchet claw and a ratchet tooth ring in an assembled state on the supply reel side in the coating film transfer tool in FIG. 1. FIG.
FIG. 3 is a view corresponding to FIG. 2, showing another embodiment.
FIG. 4 is a view corresponding to FIG. 2 and showing another embodiment.
FIG. 5 is an exploded perspective view of a coating film transfer tool showing another embodiment.
6 is a plan view of a principal part in an assembled state on the supply reel side in the coating film transfer tool shown in FIG. 5. FIG.
FIG. 7 is also a longitudinal sectional view of an essential part in an assembled state.
FIG. 8 is a perspective view of the main part showing the engagement of the ratchet pawl and the ratchet tooth ring in the assembled state, similarly;
FIG. 9 is a view corresponding to FIG. 6, showing another embodiment.
FIG. 10 is an exploded perspective view of a conventional coating film transfer tool.
11 is a plan view of an essential part in an assembled state on the supply reel side in the coating film transfer tool shown in FIG.
FIG. 12 is a longitudinal sectional view of an essential part in an assembled state on the supply reel side.
13 is an enlarged sectional view taken along line XIII-XIII in FIG.
[Explanation of symbols]
(1) Coating film transfer tool
(2) Upper case member
(3) Lower case member
(3a) Inner surface
(4) (5) Opening
(6) Transfer head
(7) Supply gear
(7a) Internal notch
(8) Winding gear
(9) (10) Spindle
(11) Winding button
(11a) Locking claw
(11b) Upper edge
(11c) Outward locking piece
(12) Compression coil spring
(13) Supply reel
(13a) Inward locking piece
(14) Take-up reel
(15) Transfer tape
(16) Ratchet tooth ring
(16a) Engaging tooth
(16b) tooth tip
(17) Arm
(17a) Base
(17b) Curved part
(18) Ratchet claw
(19) Arm
(19a) (19b) Curved part
(20) Ratchet claw
(21) Arm
(21a) Curved part
(22) Ratchet claw
(23) Ratchet tooth ring
(23a) Engaging tooth
(23b) Tooth surface
(23c) Tangent
(24) Arm
(24a) Base
(24b) Curved part
(25) Ratchet claw
(26) Arm
(26a) (26b) Curved part
(27) Ratchet claw
(01) Coating film transfer tool
(02) Upper case member
(03) Lower case member
(03a) Inner surface
(04) (05) Opening
(06) Transfer head
(07) Supply gear
(08) Winding gear
(09) (010) Spindle
(011) Winding button
(011a) Locking claw
(011b) Upper edge
(011c) Outward locking piece
(012) Compression coil spring
(013) Supply reel
(013a) Inward locking piece
(014) Take-up reel
(015) Transfer tape
(016) Ratchet Tooth Ring
(016a) engaging tooth
(016b) Tooth tip
(017) Arm
(017a) Base
(018) Ratchet claw

Claims (5)

A supply reel and a take-up reel are disposed in a case having an opening at the front end, a transfer head is projected from the opening, and the transfer tape fed from the supply reel is reversed at the tip of the transfer head, and then the supply reel In a coating film transfer tool that is wound around a take-up reel that is driven by transmitting the rotational torque of the motor via a supply gear and a take-up gear,
On the inner surface of the case, an arm provided with a ratchet tooth ring concentrically with the supply gear or the take-up gear, a base portion fixed to the supply gear or the take-up gear, and an elastic deformation portion having a curved portion at the intermediate portion A coating film transfer tool, wherein a ratchet pawl that engages with the ratchet tooth ring is provided at the tip of the sheet to form a reverse rotation prevention mechanism for the supply reel or take-up reel. The ratchet tooth ring has engaging teeth that are vertically upward with respect to the inner surface of the case, the ratchet claw is downward, and the curved portion of the arm is convex upward, and the tip of the arm coating film transfer tool according to claim 1, characterized in that so as to engage in a pressed state to said ratchet toothed ring of the ratchet pawl provided on the. The ratchet tooth ring is concentric with the supply gear or the take-up gear and has radially inward engagement teeth, the ratchet pawl is radially outward, and the curved portion of the arm has a radius as the curvature of the convex inward, the ratchet pawl provided at the tip of the arm, the coating film transfer tool according to claim 1, characterized in that so as to engage in a pressed state to said ratchet toothed ring . The coating film transfer tool according to claim 1 , wherein a plurality of curved portions are provided in an intermediate portion of the arm. The coating film transfer tool according to any one of claims 1 to 3 , wherein the curved portion in the intermediate portion of the arm is formed so that the entire arm has an arcuate shape.

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