Correction tape

Abstract

The utility model discloses a correction tape and belongs to the technical field of stationery design. The correction tape comprises a tape winding wheel, a tape unwinding wheel and a non-return wheel. A clamping fork is further arranged in the inner cavity of the correction tape, a fork head is arranged at one end of the clamping fork, and the other end of the clamping fork is fixed to the correction tape bottom shell. A sliding inner groove column is further arranged in the inner cavity of the correction tape, the bottom of the sliding inner groove column is fixed to the correction tape bottom shell, and a sliding groove is formed in an opening of the sliding inner groove column. Gear teeth of the non-return wheel are meshed with the belt collecting wheel; and the sliding base of the non-return wheel is embedded and inserted into the sliding groove of the opening of the sliding inner groove column. Compared with the prior art, the correction tape can effectively prevent the correction tape winding and unwinding wheel from moving reversely; in addition, the non-return device is firm in structure and not prone to being bent or even broken due to stress; when the take-up wheel rotates in the forward direction, the friction force is small, and the force exerting force of an operator cannot be increased.

Description

Technical Field

[0001] The utility model relates to the technical field of stationery design, in particular to a correction tape. Background Art

[0002] In the prior art, there has been a technical solution for preventing the retractable belt pulley from running backward.

[0003] CN201070937Y discloses a non-return correction belt, which includes a housing and a tape-feeding wheel and a tape-receiving wheel arranged in the housing, a ratchet is arranged on the inner side of the housing located on the axial side of the tape-feeding wheel or the tape-receiving wheel, a non-return ring is arranged between the tape-feeding wheel or the tape-receiving wheel and the ratchet, the non-return ring is a base ring and a fastening ring connected and coaxially arranged in one body, the fastening ring is axially sleeved with the tape-feeding wheel or the tape-receiving wheel so that the two rotate synchronously, at least two flexible abutting rods are arranged near the radial outer side of the base ring, and the end of each abutting rod is provided with a ratchet pawl adapted to the ratchet to prevent the tape-feeding wheel or the tape-receiving wheel from reversing. After testing and analysis, the defect is that the two flexible abutting rods arranged therein are relatively weak in structure due to space limitation, and if the reverse operation is too strong, the flexible abutting rods are easily bent or even broken by force.

[0004] CN217574662U discloses a silent anti-return mechanism and a correction tape with the mechanism. It comprises: an anti-return piece clamped in the outer shell, adapted to a plurality of first wedge-shaped teeth arranged on the tape feed wheel, comprising a clamping ring clamped with the outer shell, a plurality of clamping pieces formed on the outer side of the clamping ring, and the extension direction of the plurality of clamping pieces toward the clamping ring coincides with the center of the circle of the clamping ring; when the tape feed wheel is in a one-way locking state, only one of the clamping pieces and the first wedge-shaped teeth are in a clamping state. After testing and analysis, its defects are: the anti-return piece 8 is placed in the narrow space between the clamping plate 9 and the tape feed wheel 5, and the dimensional accuracy and material toughness of the anti-return piece are relatively high. In addition, when the tape feed wheel is running in the forward direction, although the anti-return piece stops working, the friction force generated by the larger friction surface of the anti-return piece and the tape feed wheel and the clamping plate will still increase the force applied by the operator.

[0005] CN117901568A discloses a silent one-way transmission mechanism and a correction tape having the mechanism. When the tape is scratched, the second retractable belt wheel rotates forward, driving the hook on the anti-return wheel to automatically separate from the hook teeth, so as to realize silent scratching of the correction tape. When the second retractable belt wheel rotates reversely, the first surface of the second retractable belt wheel abuts against the third surface of the anti-return wheel, so as to achieve the effect of reverse rotation and anti-rotation. After testing and analysis, the defects are: the shape of the hook teeth of the second retractable belt wheel and the anti-return wheel are relatively special, the design requirements of the hook teeth of the above two gears are relatively strict, and the processing difficulty of the mold is relatively high. Therefore, the cost of the product is also increased. Summary of the invention

[0006] The invention of the utility model aims to design and provide a correction tape based on a detailed analysis of the shortcomings of the prior art, which can effectively prevent the problem of the correction tape retracting and releasing pulley from reversing. Compared with the prior art, the anti-reversal device has a stronger structure.

[0007] It is not easy to bend or even break due to stress. When the take-up wheel is running in the forward direction, the friction is very small and will not increase the operator's force.

[0008] The specific technical solution proposed by the utility model is as follows: a correction tape, comprising: a take-up wheel, a pay-off wheel, and a non-return wheel; further, a clamping fork is also provided in the inner cavity of the correction tape, one end of the clamping fork is provided with a fork head, and the other end of the clamping fork is fixed to the bottom shell of the correction tape; a sliding inner groove column is also provided in the inner cavity of the correction tape, the bottom of the sliding inner groove column is fixed to the bottom shell of the correction tape, and a sliding groove is provided at the opening of the sliding inner groove column.

[0009] The gear teeth of the non-return wheel are meshed with the belt-taking wheel; the sliding base of the non-return wheel is inserted into the sliding groove of the opening of the sliding inner groove column.

[0010] When the take-up wheel and the unwinding wheel rotate forward, the teeth of the non-return wheel are thrusted by the take-up wheel, and the sliding base inserted in the sliding groove of the sliding inner groove column opening slides to a position at the groove end of the sliding groove away from the fork head.

[0011] When the take-up wheel and the unwinding wheel rotate in opposite directions, the teeth of the anti-return wheel are thrusted by the take-up wheel, and the sliding base inserted in the sliding groove of the sliding inner groove column opening slides to the second position of the groove end of the sliding groove close to the fork head; the teeth of the anti-return wheel mesh with the fork head of the clamping fork.

[0012] The arc groove wall 1 and the arc groove wall 2 of the sliding groove are co-centered with the take-up wheel, so as to ensure that when the non-return wheel slides in the sliding groove, the gear teeth of the non-return wheel are meshed with the take-up wheel at any position.

[0013] The module of the check wheel teeth is the same as the module of the take-up wheel teeth. Beneficial Effects

[0014] It can be seen from the above technical solution that the anti-return device provided in the correction belt includes an anti-return wheel, a sliding inner groove column and a clamping fork, and the anti-return wheel can move in the sliding inner groove.

[0015] When the take-up wheel and the unwinding wheel rotate in the opposite direction, the teeth of the anti-return wheel mesh with the fork of the clamping fork, so that the anti-return wheel cannot rotate, and the take-up wheel meshed with the anti-return wheel cannot rotate either, effectively preventing the correction tape from reversing. Since the clamping fork is connected to the bottom shell of the correction tape as a whole, the structure is relatively strong and is not easily bent or even broken by stress.

[0016] When the take-up wheel and the unwinding wheel rotate in the forward direction, the teeth of the anti-return wheel separate from the fork head of the clamping fork, and the anti-return wheel rotates idly with the take-up wheel, and the friction force is very small. Therefore, it does not increase the operator's force. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG. 1 is a schematic diagram of the internal structure of a correction tape.

[0018] FIG. 2 is a schematic diagram showing the structural disassembly of a correction tape.

[0019] FIG. 3 is a schematic diagram showing the meshing of the check wheel teeth with the take-up wheel.

[0020] FIG. 4 is a schematic diagram of the components of the anti-return device.

[0021] FIG. 5 is a schematic diagram of the front and cross-sectional views of the check wheel.

[0022] FIG. 6 is a perspective schematic diagram of the sliding inner groove column and the clamping fork.

[0023] FIG. 7 is a schematic diagram showing the separation of the anti-return wheel teeth from the fork head when the take-up wheel rotates in the forward direction.

[0024] FIG. 8 is a schematic diagram showing that the teeth of the anti-return wheel are meshed with the fork head of the clamping fork when the take-up wheel rotates in the reverse direction.

[0025] Attached photos

[0026] 1-correction belt bottom shell; 2-fork; 21-fork head; 3-sliding inner groove column; 31-sliding groove; 32-groove end one; 33-groove end two; 34-arc groove wall one; 35-arc groove wall two; 4-check wheel; 41-sliding base; 5-take-up wheel; 51-take-up wheel center rotating hole; 6-take-off wheel. DETAILED DESCRIPTION

[0027] In order to better explain the present invention, the above technical solution is further described in detail through specific implementation methods in conjunction with the accompanying drawings.

[0028] A correction tape comprises: a take-up wheel 5, a pay-off wheel 6, and a check wheel 4; further, a clamping fork 2 is arranged in the inner cavity of the correction tape, one end of the clamping fork 2 is provided with a fork head 21, and the other end of the clamping fork 2 is fixed on the bottom shell of the correction tape.

[0029] A sliding inner groove column 3 is also provided in the inner cavity of the correction tape, the bottom of the sliding inner groove column 3 is fixed on the bottom shell of the correction tape, and a sliding groove 31 is provided at the opening of the sliding inner groove column 3 .

[0030] The gear teeth of the non-return wheel 4 mesh with the take-up wheel 5 ; the sliding base 41 of the non-return wheel 4 is inserted into the sliding groove 31 of the opening of the sliding inner groove column 3 .

[0031] When the take-up wheel 5 and the unwinding wheel 6 rotate forward, the teeth of the check wheel 4 are pushed by the take-up wheel 5, and the sliding base 41 inserted in the sliding groove 31 of the sliding inner groove column 3 slides to the groove end 32 of the sliding groove 31 away from the fork 21.

[0032] When the take-up wheel 5 and the unwinding wheel 6 rotate in opposite directions, the teeth of the anti-return wheel 4 are thrusted by the take-up wheel 5, and the sliding base 41 inserted in the sliding groove 31 of the opening of the sliding inner groove column 3 slides to the position of the groove end 2 33 of the sliding groove 31 close to the fork 21; the teeth of the anti-return wheel 4 are meshed with the fork 21 of the clamping fork 2.

[0033] The arcuate groove wall 1 34 and the arcuate groove wall 2 35 of the sliding groove 31 are co-centered with the take-up wheel 5. The purpose is to ensure that when the check wheel 4 slides in the sliding groove 31, the gear teeth of the check wheel 4 are meshed with the take-up wheel 5 at any position.

[0034] The sliding base 41 of the anti-return wheel 4 is cylindrical.

[0035] The module of the teeth of the check wheel 4 is the same as the module of the teeth of the take-up wheel 5 to ensure the optimal meshing of the check wheel 4 and the take-up wheel 5.

Claims

1. A correction tape, comprising: a take-up wheel (5), a pay-off wheel (6), and a non-return wheel (4); characterized in that: A clamping fork (2) is also provided in the inner cavity of the correction tape, one end of the clamping fork (2) is provided with a fork head (21), and the other end of the clamping fork (2) is fixed to the bottom shell of the correction tape; A sliding inner groove column (3) is also provided in the inner cavity of the correction tape, the bottom of the sliding inner groove column (3) is fixed on the bottom shell of the correction tape, and the opening of the sliding inner groove column (3) has a sliding groove (31); The gear teeth of the non-return wheel (4) mesh with the belt-receiving wheel (5); the sliding base (41) of the non-return wheel (4) is inserted into the sliding groove (31) of the opening of the sliding inner groove column (3); When the take-up wheel (5) and the unwinding wheel (6) rotate in the forward direction, the teeth of the non-return wheel (4) are pushed by the take-up wheel (5), and the sliding base (41) inserted in the sliding groove (31) of the sliding inner groove column (3) slides to the position of the groove end (32) of the sliding groove (31) away from the fork head (21); When the take-up wheel (5) and the unwinding wheel (6) rotate in opposite directions, the teeth of the anti-return wheel (4) are thrusted by the take-up wheel (5), and the sliding base (41) inserted into the sliding groove (31) at the opening of the sliding inner groove column (3) slides to the position of the second groove end (33) of the sliding groove (31) close to the fork head (21); the teeth of the anti-return wheel (4) mesh with the fork head (21) of the clamping fork (2).

2. A correction tape according to claim 1, characterized in that: To ensure that the teeth of the check wheel (4) are meshed with the take-up wheel (5) at any position when the check wheel (4) slides in the sliding groove (31), the arcuate groove wall 1 (34) and the arcuate groove wall 2 (35) of the sliding groove (31) are co-centered with the take-up wheel (5).

3. A correction tape according to claim 1, characterized in that: The sliding base (41) of the non-return wheel (4) is cylindrical.

4. A correction tape according to claim 1, 2 or 3, characterized in that: The module of the gear teeth of the check wheel (4) is the same as the module of the gear teeth of the take-up wheel (5).

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