Mute correction tape

Abstract

The utility model relates to a correction tape, in particular to a mute correction tape which comprises an outer shell, a tape winding wheel and a tape unwinding wheel, the tape winding wheel and the tape unwinding wheel are arranged in the outer shell, and the tape winding wheel and the tape unwinding wheel are rotationally connected through a gear set. The non-return ring teeth are formed on the inner wall of the outer shell, the four elastic pieces can rotate in the circumferential direction along with the belt releasing wheel, and non-return teeth which are limited with the non-return ring teeth in a one-way mode are formed at the ends of the elastic pieces. The four elastic pieces with the non-return teeth are arranged to be matched with the non-return ring teeth in a one-way limiting mode, so that reverse rotation of the belt unwinding wheel is effectively prevented, the stability of the belt winding and unwinding process is guaranteed, meanwhile, due to the arrangement of the four elastic pieces, the limiting force is more evenly distributed in the circumferential direction of the belt unwinding wheel, and the belt unwinding effect is better. And the condition of local stress concentration is reduced, so that the belt releasing wheel is more silent when rotating in the forward direction.

Description

TECHNICAL FIELD

[0001] The utility model relates to a correction tape, specifically is a mute correction tape. BACKGROUND

[0002] Correction tape is a handwriting correction tool, and it has the advantages of pressing and writing at the same time, being clean and convenient. However, the existing products generally adopt single or double pawl or single spring sheet type one-way mechanism to prevent the reverse rotation of the tape wheel. Although this kind of structure can prevent reverse rotation, it has the following obvious defects: stress concentration and loud noise, and the single-point or single-side limiting causes a large impact between the pawl and the gear ring at the meshing moment, resulting in a loud noise. In addition, the impact is further amplified when the tape is fed at high speed, which disturbs the office and study environment. SUMMARY

[0003] The utility model aims at providing a mute correction tape to solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a mute correction tape, comprising a shell body, a take-up wheel and a tape wheel placed in the shell body, the take-up wheel and the tape wheel are connected through a gear set, further comprising: a reverse ring tooth formed on the inner wall of the shell body and four elastic members capable of rotating circumferentially with the tape wheel, the end of the elastic member is formed with a reverse tooth capable of one-way limiting the reverse ring tooth.

[0005] The mute correction tape as described above: the four elastic members are equidistantly distributed circumferentially along the tape wheel.

[0006] The mute correction tape as described above: the reverse ring tooth comprises an annular part and a tooth-shaped part, and the tooth-shaped part is formed at the inner ring of the annular part.

[0007] The mute correction tape as described above: the elastic member is arranged in an arc shape, and the reverse tooth is formed at one end of the elastic member facing the tooth-shaped part.

[0008] The mute correction tape as described above: the elastic member and the reverse tooth are integrally formed.

[0009] The mute correction tape as described above: the elastic member and the reverse tooth are both made of polyformal material.

[0010] The mute correction tape as described above: the gear set comprises: a large gear and a small gear rotatably installed in the shell body and meshing with each other, the small gear is fixedly connected with the take-up wheel, and the large gear is detachably connected with the tape wheel.

[0011] The mute correction tape as described above: an elastic inner support member is coaxially installed on the large gear, and the tape wheel is sleeved on the elastic inner support member.

[0012] Compared with the prior art, the utility model discloses the beneficial effects are: through setting up four elastic members containing check tooth and check ring tooth realizes one -way location cooperation, thereby effectively prevent the reverse rotation of the tape releasing wheel, guarantee the stability of the tape receiving and the tape releasing process, simultaneously, four elastic members'setting up, make the location force more evenly distribute on the circumference direction of the tape releasing wheel, reduced the local stress concentration situation, make the tape releasing wheel more silent when forward rotation. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is the structure schematic diagram of silent correction tape;

[0014] Fig. 2 It is the internal structure perspective view of silent correction tape;

[0015] Fig. 3 It is the internal structure front view of silent correction tape.

[0016] Fig. in: 1, outer shell body;2, tape receiving wheel;3, tape releasing wheel;4, elastic inner support piece;5, large gear;6, small gear;7, check ring tooth;8, elastic member;801, check tooth. DETAILED DESCRIPTION

[0017] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numbers in the drawings indicate elements with the same or similar functionality. Although various aspects of embodiments are illustrated in the drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0018] The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations.

[0019] In addition, in order to better illustrate the present application, a large number of specific details are given in the specific embodiments below. Those skilled in the art should understand that without certain specific details, the present application can also be implemented. In some examples, methods, means, elements well known to those skilled in the art are not described in detail, in order to highlight the main idea of the present application.

[0020] Please refer to Figs. 1-3 As a silent correction tape of the utility model, including outer shell body 1 and placing in the outer shell body 1's tape receiving wheel 2 and tape releasing wheel 3, the tape receiving wheel 2 with the tape releasing wheel 3 is rotated and is connected through gear set, still include: the check ring tooth 7 formed on the inner wall of the outer shell body 1 and four elastic members 8 that can follow the tape releasing wheel 3 circumferential rotation, the end of the elastic member 8 is formed with the check tooth 801 of one-way location of the check ring tooth 7.

[0021] By setting four elastic members 8 containing reverse teeth 801 and reverse ring teeth 7 to realize one-way limiting cooperation, the reverse rotation of the tape releasing wheel 3 is effectively prevented, and the stability of the tape releasing and winding process is ensured. At the same time, the setting of the four elastic members 8 makes the limiting force more evenly distributed in the circumferential direction of the tape releasing wheel 3, reduces the local stress concentration, and makes the tape releasing wheel 3 rotate more quietly.

[0022] When the tape releasing wheel 3 rotates forward, the reverse teeth 801 of the elastic member 8 can smoothly slide on the reverse ring teeth 7 without hindering the tape releasing action. When the tape releasing wheel 3 has a tendency to rotate in reverse, the reverse teeth 801 will immediately mesh with the reverse ring teeth 7, producing a strong limiting effect to prevent the tape releasing wheel 3 from reversing.

[0023] The four elastic members 8 are equally distributed along the circumference of the tape releasing wheel 3, thereby further increasing the uniformity of the limiting force in the circumferential direction of the tape releasing wheel 3, making the pressure and force on each elastic member 8 more balanced during the rotation of the tape releasing wheel 3, avoiding the situation that some elastic members 8 are subjected to excessive or insufficient force due to uneven distribution, and effectively eliminating the obvious noise caused by local excessive force.

[0024] Further, please refer to Fig. 2 and Fig. 3 , the reverse ring teeth 7 include a ring-shaped portion and a tooth-shaped portion, the tooth-shaped portion is formed at the inner ring of the ring-shaped portion, the elastic member 8 is arranged in an arc shape, and the reverse teeth 801 are formed at one end of the elastic member 8 towards the tooth-shaped portion, so that the elastic member 8 can better fit the tooth-shaped portion when cooperating with the reverse ring teeth 7.

[0025] It should be noted that the elastic member 8 and the reverse tooth 801 are integrally formed and are made of a silent modified polyformal material, which includes but is not limited to polyformal material, so that the elastic member 8 and the reverse tooth 801 can further effectively reduce the noise caused by collision and friction during contact with the reverse ring teeth 7.

[0026] Further, please refer to Fig. 2 and Fig. 3 , the gear set includes a large gear 5 and a small gear 6 rotatably installed in the outer housing 1 and meshing with each other, the small gear 6 is fixedly connected with the tape winding wheel 2, and the large gear 5 is detachably connected with the tape releasing wheel 3.

[0027] The first mounting shaft is sleeved with the first mounting hole of the small gear 6 and the through hole of the collecting pulley 2, so that the collecting pulley 2 and the small gear 6 can rotate freely after being mounted on the first mounting shaft.

[0028] The elastic inner supporting member 4 is coaxially mounted on the large gear 5, and the releasing pulley 3 is sleeved on the elastic inner supporting member 4.

[0029] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

[0030] In addition, it should be understood that, although the present application is described in the embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments which can be understood by those skilled in the art.

Claims

1. A silent correction tape, comprising a housing (1) and a take-up pulley (2) and a release pulley (3) disposed within the housing (1), wherein the take-up pulley (2) and the release pulley (3) are rotatably connected by a gear set, characterized in that, Also includes: The outer shell (1) has a backstop ring tooth (7) formed on its inner wall and four elastic elements (8) that can rotate circumferentially with the pulley (3). The ends of the elastic elements (8) are formed with backstop teeth (801) that limit the backstop ring tooth (7) in one direction.

2. The silent correction tape according to claim 1, characterized in that, The four elastic elements (8) are equidistantly distributed along the circumference of the pulley (3).

3. The silent correction tape according to claim 1, characterized in that, The anti-reverse ring tooth (7) includes an annular portion and a toothed portion, wherein the toothed portion is formed at the inner ring of the annular portion.

4. A silent correction tape according to claim 3, characterized in that, The elastic element (8) is arranged in an arc shape, and the anti-reverse tooth (801) is formed at one end of the elastic element (8) facing the toothed portion.

5. A silent correction tape according to claim 1, characterized in that, The elastic element (8) and the anti-reverse tooth (801) are integrally formed.

6. A silent correction tape according to claim 1, characterized in that, Both the elastic element (8) and the anti-reverse tooth (801) are made of polyoxymethylene material.

7. A silent correction tape according to claim 1, characterized in that, The gear set includes a large gear (5) and a small gear (6) that are rotatably installed inside the outer casing (1) and mesh with each other. The small gear (6) is fixedly connected to the take-up pulley (2), and the large gear (5) is detachably connected to the release pulley (3).

8. A silent correction tape according to claim 7, characterized in that, An elastic inner support (4) is coaxially mounted on the large gear (5), and the pulley (3) is fitted onto the elastic inner support (4).

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