JP2003231391A - Paint film transfer tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the resistance and noises of a ratchet mechanism while maintaining a sufficient ratchet function upon using a paint film transfer tool having the ratchet mechanism. <P>SOLUTION: The paint film transfer tool 1A comprises cases 2, 3 in which a feed reel 13 and a reeler 14 are arranged. According to the paint film transfer tool 1A, a transfer tape 15 reeled out from the feed reel 13 is reversed at the tip of a transfer head 6, and then is reeled up by the reeler 14, which is driven by the torque of the feed reel 13 transmitted via a feed gear 7 and a reeling gear 8. In the cases, a ratchet teeth wheel 23 is provided in concentric with the feed gear 7, and an arm 24 is also provided, of which the base is fixed to the feed gear 7 and the middle part is formed as an elastically deforming part (curved part 24b). On the front end of the arm 24, a ratchet click 25 engaging with the ratchet teeth wheel 23 is provided to form a reverse preventive mechanism. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating film for correction or sizing that is applied to a transfer tape fed from a supply reel by gripping and moving backward while pressing a paper surface or the like. Regarding the coating film transfer tool that transfers the
In particular, it relates to a coating film transfer tool having a novel reverse rotation prevention mechanism.

[0002]

2. Description of the Related Art When a coating film transfer tool is used, the transfer tape is mistakenly moved in the opposite direction, or when the coated film transfer tool is partially carried around, the transfer tape moves back due to vibration or the like. In order to prevent
A reverse rotation prevention mechanism is provided in the supply gear or the winding gear.

FIG. 10 is an exploded perspective view of a conventional coating film transfer tool (01), and FIG. 11 is a plan view of a main portion of a supply reel side assembly state of the coating film transfer tool (01) shown in FIG. 12 is a longitudinal sectional view of an essential part in the same assembled state.

The upper and lower case members (02) and (03), which are a pair of flat lidless containers, are made to face each other so that their opening faces are integrated with each other to form a case. The front ends of the upper and lower case members (02) and (03) are notched to form openings (04) and (05), and the transfer head (06) is opened from this opening.
Is projected.

On the inner surface of the lower case member (03), the supply gear (0
The support shafts (09) (010) of the 7) and the winding gear (08) are erected. On the support shaft (09) of the supply gear (07), take-up button
(011) is rotatably fitted on the winding button (011),
The supply gear (07) is rotatably fitted onto the lower surface of the winding button (011) by the locking claws (011a) of the lower end of the winding button (011), and the compression coil spring (012) is connected to the winding button. Upper edge of (011) (011b)
The sliding mechanism is arranged between the take-up button (011) and the supply gear (07) by interposing it between the lower surface of the supply gear (07) and the upper surface of the supply gear (07). .

On the upper peripheral edge (011b) of the winding button (011),
A plurality of outward locking pieces (011c) are provided.
11c) locks with the inward locking piece (013a) provided on the inner surface of the supply reel (013), and the winding button (011) and the supply reel (013).
The rotation torque is transmitted between 3).

The take-up gear (08) meshes with the supply gear (07), and the upper surface of the take-up gear (08) has a take-up reel (014).
Are integrally formed.

Transfer tape wound around a supply reel (013)
(015) is fed out, then inverted at the tip of the transfer head (06) and wound up on the winding reel (014).

The reverse rotation preventing mechanism is provided on the inner surface of the lower case member (03).
On the (03a), a ratchet tooth wheel (016) having engaging teeth (016a) vertically upward with respect to the inner surface (03a) is provided concentrically with the support shaft (09) of the supply gear (07). , Supply gear (0
A downward ratchet claw (018) is provided on the lower surface of (7) via an arm (017), and the ratchet claw (018) is engaged with the ratchet tooth ring (016) in a pressure contact state to supply a gear ( 0
7) and the supply reel (013) are rotated only in the feeding direction of the transfer tape (015), and are not rotated in the opposite direction.

FIG. 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) whose base (017a) is fixed to the supply gear (07) and whose side view is linear. During use, the middle part of the linear arm (017) is hardly deformed, and the ratchet pawl (018) causes the ratchet tooth ring (018) due to a slight hinge action of the base part (017a) of the arm (017). Both the state shown by the phantom line overcoming the tooth tip (016b) of the engaging tooth (016a) in (016) and the state shown by the solid line in which the ratchet pawl (018) is engaged with the ratchet tooth ring (016). It is designed to work in the range between.

[0011]

However, the conventional reverse rotation preventing mechanism has the following problems. The ratchet tooth wheel (016), together with the support shafts (09) (010), together with the lower case member (0
3) is integrally molded when molding, but at the time of molding, since the mold is removed in the vertical direction, in order to prevent reverse rotation, the ratchet tooth ring (engaged with the ratchet pawl (018) ( The angle of the tooth surface of the engaging tooth (016a) in 016) cannot be formed into an acute angle with respect to the inner surface of the lower case member (03). Therefore, when the load in the direction of rotating the supply reel (013) in the reverse direction is large, the ratchet pawl (018) may escape upward, and the engagement with the ratchet tooth wheel (016) may be disengaged.

In order to prevent the disengagement of the engagement, the arm
The ratchet claw (018) provided at the tip of (017) is pressed against the ratchet tooth ring (016) with a force of a corresponding magnitude. Therefore, the resistance of the ratchet mechanism during use of the coating film transfer tool (01) is large and not only causes a considerable load, but also the ratchet sound is loud and annoying in some cases.

In view of the above situation, the present invention reduces the resistance of the ratchet mechanism during use of the coating film transfer tool, reduces the load on the user, reduces ratchet noise, and reverses the supply reel. 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 in the rotating direction is large.

[0014]

According to the present invention, the above problems can be solved as follows. (1) After arranging a supply reel and a take-up reel in a case having an opening at the front end, projecting a transfer head from the opening, and inverting the transfer tape fed from the supply reel at the tip of the transfer head. In a coating film transfer tool adapted to be wound on a take-up reel driven by transmitting the rotational torque of the supply reel via a supply gear and a take-up gear, a supply gear or a take-up gear is provided on the inner surface of the case. Concentrically,
By providing a ratchet tooth wheel, fixing the base portion to the supply gear or the take-up gear, and providing a ratchet pawl that engages with the ratchet tooth wheel at the tip of an arm having an elastically deformable portion in the middle portion, A reverse rotation preventing mechanism for the reel or the take-up reel is formed.

(2) In the above item (1), it is assumed that the elastically deformable portion is provided with a curved portion at an intermediate portion of the arm.

(3) In the above item (1), the elastically deforming portion has an intermediate portion of the arm which is thin, narrow, perforated or corrugated.

(4) In the above item (2), the ratchet tooth ring has engaging teeth vertically upward with respect to the inner surface of the case, the ratchet pawl is downward, and the curved portion of the arm. Is curved upwardly so that the ratchet pawl provided at the tip of the arm is engaged with the ratchet tooth ring in a pressure contact state.

(5) In the above item (2), the ratchet wheel is concentrically formed with the supply gear or the take-up gear and has engaging teeth radially inward, and
The ratchet pawl is outward in the radial direction and the curved portion of the arm is convex inward 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. To do so.

(6) In any one of the above items (2), (4), and (5), a plurality of curved portions are provided in the intermediate portion of the arm.

(7) In any one of the above items (2), (4), and (5), the curved portion at the intermediate portion of the arm is
It is formed so that the entire arm is arcuate.

[0021]

1 is an exploded perspective view of a coating film transfer tool showing an embodiment of the present invention, and FIG. 2 is a ratchet pawl in an assembled state on a supply reel side in the coating film transfer tool shown in FIG. FIG. 6 is a longitudinal cross-sectional view of a main part showing the engagement of a ratchet tooth wheel with a ratchet wheel. 1 to 9, the parts corresponding to the reference numerals in FIGS. 10 to 13 are denoted by the same reference numerals except "0", and the description thereof will be omitted.

The reverse rotation preventing mechanism in the coating film transfer tool (1) of the present invention is characterized in that an elastically deforming portion is provided at an intermediate portion of an arm (17) having a ratchet pawl (18) at the tip thereof. As the elastically deformable portion, it is most preferable to provide a curved portion at the intermediate portion of the arm (17) and use the curved portion as the elastically deformable portion. Therefore, in the following embodiments, the elastically deformable portion will be described by using the curved portion as a representative. As the elastically deformable portion, in addition to providing the curved portion in the middle portion of the arm, the middle portion of the arm is made thin, narrow, perforated, corrugated, or the like,
Those that can be easily elastically deformed are included.

The coating film transfer tool of the first embodiment of the present invention
As the reverse rotation prevention mechanism in (1), the lower case member (3)
Ratchet wheel (16) having engaging teeth (16a) vertically upward with respect to the inner surface (3a) concentrically with the support shaft (9) of the supply gear (7) on the inner surface (3a) of the Provide and supply gear
A ratchet claw (18) is attached to the tip of an arm (17) that has a base (17a) fixed to the lower surface of (7) and an upwardly convex curved portion (17b) that can be easily elastically deformed in the middle. And the ratchet pawl (18) is engaged with the ratchet tooth ring (16) in a pressure contact state.

The arm (01) in the conventional coating film transfer tool (01)
As described above, 7) was linear in a side view as shown in FIG. On the other hand, in the present invention, the upward convex curved portion (17b) is formed in the middle portion of the arm (17).
By providing the curved portion (17b), the curved portion (17b) acts as a hinge and the arm (17) is easily elastically deformed. Therefore, when using the coating film transfer tool (1),
The arm (17) is easily elastically deformed so that the ratchet pawl (18) can easily get over the tooth tips (16b) of the engaging teeth (16a) in the ratchet tooth ring (16) as shown by the phantom line in FIG. it can. Therefore, the resistance of the ratchet mechanism during use is small, and the load on the user can be reduced.

Further, since the arm (17) is easily elastically deformed, the ratchet pawl (18) passes over the tip (16b) of the engaging tooth (16a) of the ratchet tooth ring (16) and then engages again. Restoration stress when returning to the state is also relatively small, so ratchet noise is also reduced.

FIG. 3 is a view corresponding to FIG. 2 showing another embodiment. In this embodiment, two upwardly convex 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 the plurality of curved portions (19b) and (19c), the hinge action of these arms further facilitates elastic deformation of the arm (19), and further reduces resistance of the ratchet mechanism and ratchet noise during use.

FIG. 4 is a diagram corresponding to FIG. 2 showing still another embodiment. In this embodiment, the arm (21)
A curved portion (21a) in the middle portion of the arm (21) is formed so that almost the entire arm (21) has an upward convex bow shape, and a ratchet claw (22) is provided at the tip of the arm (21). Also in this embodiment, the same effect as that of the above-described embodiment is obtained.

FIG. 5 is an exploded perspective view of a coating film transfer tool (1A) showing still another embodiment, and FIG. 6 is an assembled state of the supply reel side in the coating film transfer tool (1A) shown in FIG. FIG. 7 is a plan view of an essential part of FIG.
FIG. 8 is a perspective view of the essential part showing the engagement between the ratchet pawl and the ratchet tooth ring in the same assembled state.

Ratchet tooth ring (23) in this embodiment
Is on the inner surface (3a) of the lower case member (3) concentrically with the support shaft (9) of the supply gear (7) and in the radially inward engaging teeth (2
3a) is arranged. In the illustrated embodiment, the supply gear (7) is provided on the inner surface (3a) of the lower case member (3).
Provided with a protruding annular ring concentric with the support shaft (9), and the radially inward engaging teeth (23a) are uniformly arranged on the inner peripheral surface thereof,
A ratchet wheel (23) is formed.

As another embodiment, for example, a concave circle portion is provided on the inner surface (3a) of the lower case member (3) concentrically with the support shaft (9) of the supply gear (7), and the inside of the concave circle portion is provided. Engaging teeth may be provided on the peripheral surface. The ratchet tooth wheel (23) can be easily integrally formed when the lower case members (2) and (3) are molded with synthetic resin.

The ratchet pawl (25) is located at the base of the supply gear (7).
The end of the arm (24) to which (24a) is fixed is provided radially outward of the supply gear (7) so as to engage with the ratchet tooth wheel (23). Ratchet pawl (25) and arm
(24) is also made of synthetic resin and is integrally formed with the supply gear (7).

As shown in FIG. 6, the arm (24) has, at its intermediate portion, a curved portion which is convex inward in the radial direction of the supply gear (7).
(24b) is provided, and the tip end of the arm (24) is elastically urged radially outward by the hinge action of the bending portion (24b). Therefore, the ratchet claw (25) provided at the tip of the arm (24) is engaged with the engagement tooth (23a) of the ratchet tooth wheel (23) in a favorable pressure contact state.
By providing the curved portion (24b) on the arm (24), the same effect as that of the above-described embodiment can be obtained.

Further, the following advantages are exhibited in this embodiment. That is, the ratchet wheel (23) is
As shown in FIG. 8, the engaging teeth of the ratchet tooth ring (23)
Since the orientation of (23a) is parallel to the inner surface (3a) of the lower case member (3), the tooth surface (23b) of the ratchet tooth ring (23) with respect to the inner surface (3a) of the lower case member (3). The vertical angle of the tooth surface (23b) of the ratchet tooth ring (23) with which the ratchet pawl (25) engages when preventing reverse rotation without hindering vertical removal of the mold. The tangent to the circumference of the ratchet wheel (23)
It can be formed into an acute angle (α) with respect to the (23c) direction. Therefore, even when the load in the direction of rotating the supply reel (13) in the reverse direction is large, the ratchet pawl (24) and the ratchet tooth ring (23) are not disengaged from each other, and the reliability of the ratchet function is improved. You can

As shown in FIG. 7, the ratchet claw (2
5) is an arm (2) whose base is fixed to the lower surface of the supply gear (7).
It projects from the tip of 4) toward the inner surface (3a) of the lower case member (2) and is provided radially outward. Since the ratchet pawl (25) is projected as described above, it can be easily and favorably engaged with the ratchet tooth wheel (23).

FIG. 9 is a view corresponding to FIG. 6 showing still another embodiment. An arm provided with two curved portions (26a) and (26b) that are convex inward in the radial direction of the supply gear (7) in the middle portion.
A ratchet pawl (27) is provided at the tip of (26). By providing a plurality of curved portions (26a) (26b) in this way,
A better effect can be obtained.

In the above embodiment, the reverse rotation preventing mechanism is provided on the supply gear (7) side, but it may be provided on the winding gear (8) side. But in general,
The reverse rotation prevention mechanism is more effective when it is provided on the supply gear (7) side.

That is, an unused transfer tape (15) is wound around the supply reel (13), and a take-up reel (on which a used transfer tape having a coating film transferred onto a paper surface or the like is wound is wound. Compared to (14), the supply reel (1
The diameter of 3) is larger than that of the take-up reel (14). Therefore, the supply gear (7) has a larger diameter than the winding gear (8). Therefore, if the reverse rotation prevention mechanism is provided on the supply gear (7) side rather than the winding gear (8) side, the effect of the reverse rotation prevention is greater because of the rotation ratio of both gears.

[0038]

According to the present invention, the following effects can be obtained. (1) According to the first aspect of the present invention, the presence of the elastically deformable portion in the middle portion of the arm reduces the resistance of the ratchet mechanism during use of the coating film transfer tool and reduces the load on the user. , Ratchet sound can be reduced. Further, the ratchet function is not impaired by the presence of the elastically deformable portion, and the ratchet function practically sufficient can be obtained.

(2) According to the second aspect of the invention, the bending portion can effectively reduce both the resistance of the ratchet mechanism and the ratchet sound, and the bending portion reversely rotates the supply reel. For directional loads,
Since it acts so as to increase the force against it, a sufficient ratchet function can be obtained.

(3) According to the invention described in claim 3,
The same effect as the item (1) can be obtained.

(4) According to the invention described in claim 4, the effect of the above item (1) can be easily obtained only by changing the arm in the conventional coating film transfer tool to the one provided with the curved portion.

(5) According to the invention described in claim 5,
In addition to the effect of item (1), the following effect is achieved. That is,
The ratchet tooth wheel is integrally formed when the lower case member is molded, but the direction of the engaging teeth in the ratchet tooth wheel is
Since it is parallel to the inner surface of the lower case member, the angle of the tooth surface of the ratchet tooth ring with which the ratchet pawl engages when preventing reverse rotation without hindering removal of the mold in the vertical direction, It can be formed into an acute angle with respect to the tangential direction of the circumference of the ratchet wheel. Therefore, even when the load in the direction of rotating the supply reel in the reverse direction is large, the ratchet pawl and the ratchet tooth ring are not disengaged from each other, and the reliability of the ratchet function can be effectively improved.

(6) According to the invention described in claim 6,
The effect of item (1) can be obtained more favorably.

(7) According to the invention described in claim 7,
The same effect as the item (4) can be obtained.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a coating film transfer tool showing an embodiment of the present invention.

FIG. 2 is a longitudinal cross-sectional view of essential parts showing engagement between a ratchet pawl and a ratchet tooth wheel in an assembled state on the supply reel side in the coating film transfer tool in FIG.

FIG. 3 is a view corresponding to FIG. 2, showing another embodiment.

FIG. 4 is a drawing corresponding to FIG. 2, 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 relevant parts of the coating film transfer tool shown in FIG. 5 in an assembled state on the supply reel side.

FIG. 7 is likewise a longitudinal sectional view of an essential part in an assembled state.

FIG. 8 is likewise a perspective view of relevant parts showing engagement between the ratchet pawl and the ratchet tooth ring in the assembled state.

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 relevant parts of the supply reel side of the coating film transfer tool shown in FIG. 10 in an assembled state.

FIG. 12 is a longitudinal sectional view of an essential part of the supply reel side in an assembled state.

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) Inside (4) (5) Opening (6) Transfer head (7) Supply gear (7a) Internal cutout (8) Take-up gear (9) (10) Support shaft (11) Take-up 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 teeth (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 teeth (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) Inside (04) (05) Aperture (06) Transfer head (07) Supply gear (08) Winding gear (09) (010) Spindle (011) Take-up 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 (7)

[Claims] 1. A supply reel and a take-up reel are provided in a case whose front end is opened, a transfer head is projected from the opening, and a transfer tape fed from the supply reel is inverted at the tip of the transfer head. After that, in the coating film transfer tool that is adapted to be wound up on the take-up reel driven by transmitting the rotational torque of the supply reel through the supply gear and the take-up gear, A ratchet pawl is provided concentrically with the gear, the base portion is fixed to the supply gear or the take-up gear, and an elastically deformable portion is provided in the middle portion, and the ratchet pawl engages with the ratchet tooth ring at the tip of the arm. The coating film transfer tool is characterized in that a reverse rotation preventing mechanism for the supply reel or the take-up reel is formed by providing the. 2. The coating film transfer tool according to claim 1, wherein the elastically deformable portion is provided with a curved portion at an intermediate portion of an arm. 3. The coating film transfer tool according to claim 1, wherein the elastically deformable portion is one in which the middle portion of the arm is thin, narrow, perforated, or corrugated. 4. The ratchet wheel has engagement teeth that are vertically upward with respect to the inner surface of the case, the ratchet pawl is downward, and the curved portion of the arm is upwardly curved. 3. The coating film transfer tool according to claim 2, wherein the ratchet claw provided at the tip of the arm is engaged with the ratchet tooth ring in a pressure contact state. 5. The ratchet wheel is concentric with the supply gear or the take-up gear and has engaging teeth inward in the radial direction, and ratchet pawls are outward in the radial direction, and the arm is provided. 3. A curved portion of the armature is convexly curved inward 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. Coating film transfer tool. 6. The coating film transfer tool according to claim 2, wherein a plurality of curved portions are provided in an intermediate portion of the arm. 7. The curved portion in the middle portion of the arm is
The coating film transfer tool according to claim 2, wherein the arm is formed so as to have an arcuate shape.