Silent reverse-proof transmission mechanism and correction tape

Abstract

The utility model discloses a kind of mute reverse-stop transmission mechanism, including driving wheel and transmission wheel installed on correction tape shell, and the reverse-stop mechanism being set between driving wheel and transmission wheel, reverse-stop mechanism includes reverse-stop piece and the limiting slot being set on correction tape shell, reverse-stop piece is reverse-stop elastic piece, reverse-stop piece is flexibly contacted when one-way transmission occurs between driving wheel and transmission wheel, deformation is generated, when reverse-stop piece is subjected to transmission reverse direction force, reverse-stop piece stress changes and occurs rebound, limit the reverse transmission of driving wheel and / or transmission wheel.The utility model also discloses a kind of correction tape, with above-mentioned mute reverse-stop transmission mechanism, by elastic piece (i.e. reverse-stop piece) make flexible contact when wheel one-way transmission (normal rotation), eliminate hard knock noise, and reverse forced interference wheel transmission is realized reverse-stop function.

Description

Technical Field

[0001] This utility model belongs to the technical field of correction tape, and in particular relates to a silent anti-reverse transmission mechanism for correction tape. Background Technology

[0002] Traditional correction tape anti-reverse transmission mechanisms are mostly ratchet anti-reverse mechanisms. For example... Figure 1 As shown, it includes a rack 01, a tooth tip 02, and a toothed disc (ratchet) 03.

[0003] 1. The rack of this mechanism will produce a hard impact noise when passing through the ratchet teeth of the gear plate;

[0004] 2. The ratchet teeth in the gear disc of this mechanism are densely distributed and closely spaced, resulting in a small working rotation stroke of the rack as it reverses through the gear disc, thus preventing the belt from reversing. Therefore, the rack 01, tooth tip 02, or gear disc (ratchet) 03 have dimensional accuracy requirements during mold processing and injection molding.

[0005] In view of this, the inventor of this case conducted in-depth research, which led to the creation of this case. Utility Model Content

[0006] The purpose of this invention is to provide a silent anti-reverse transmission mechanism for correction tape, which solves the problem of noise caused by hard impact of tooth tips during use.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A silent anti-reverse transmission mechanism includes a drive wheel and a transmission wheel mounted on a correction tape housing, and an anti-reverse mechanism disposed between the drive wheel and the transmission wheel. The anti-reverse mechanism includes an anti-reverse element and a limiting groove disposed on the correction tape housing. The anti-reverse element is an anti-reverse elastic element made of soft material. When the drive wheel and the transmission wheel are in unidirectional transmission, the anti-reverse element makes flexible contact and deforms. When the anti-reverse element is subjected to a force in the reverse direction of transmission, the force on the anti-reverse element changes and it rebounds, thereby restricting the reverse transmission of the drive wheel and / or the transmission wheel.

[0009] Furthermore, the anti-reverse component includes a limiting seat, a first anti-reverse arm, and a second anti-reverse arm. The limiting seat is installed and limited within the limiting groove. The shape and size of the limiting seat and the limiting groove are respectively matched. A deformation space is formed between the first anti-reverse arm and the second anti-reverse arm. The first anti-reverse arm forms a flexible contact with the driving wheel, and the second anti-reverse arm forms a flexible contact with the transmission wheel.

[0010] Furthermore, both the driving wheel and the transmission wheel are gears, and the anti-reverse component is located at the inlet position of the meshing start point between the driving wheel and the transmission wheel.

[0011] Furthermore, the anti-reverse component is a anti-reverse post, the bottom of which is installed within the limiting groove. The shape and size of the bottom of the anti-reverse post match those of the limiting groove. The anti-reverse post is positioned near the point where the interaction force disengages, and it forms a flexible contact with both the driving wheel and the transmission wheel.

[0012] Furthermore, both the driving wheel and the transmission wheel are gears, and the anti-reverse pin is located at the outlet position of the meshing end point between the driving wheel and the transmission wheel.

[0013] Furthermore, the anti-reverse component is a rubber component.

[0014] A correction tape includes a correction tape housing, a tape core, a tape applicator, and the aforementioned silent anti-reverse transmission mechanism. The correction tape housing includes a housing bottom and a housing cover. The tape core is mounted on the drive wheel. The drive wheel and the transmission wheel are respectively mounted on the housing bottom. The tape applicator is mounted on the tape outlet of the housing bottom.

[0015] Furthermore, a first wheel post and a second wheel post are protruding on the bottom of the shell, the drive wheel is mounted on the first wheel post, and the transmission wheel is mounted on the second wheel post.

[0016] After adopting the above technical solution, the silent anti-reverse transmission mechanism of this utility model has the following beneficial effects: the elastic element enables flexible contact between the wheels during unidirectional transmission (forward rotation), eliminating hard impact noise, and the reverse forced interference between the wheels achieves the anti-reverse function. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a traditional corrective belt anti-reverse transmission mechanism;

[0018] Figure 2 This is an exploded view of a correction tape according to the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of a silent anti-reverse transmission mechanism according to the present invention;

[0020] Figure 4 This is the force state of the second anti-reverse arm of this utility model during forward rotation;

[0021] Figure 5 This is the force state of the first anti-reverse arm of this utility model during forward rotation;

[0022] Figure 6 This is the force state of the first anti-reverse arm of this utility model during reversal;

[0023] Figure 7This is the force state of the second anti-reverse arm of this utility model during reversal;

[0024] Figure 8 This is an exploded view of another correction tape of this utility model;

[0025] Figure 9 This is a schematic diagram of another silent anti-reverse transmission mechanism of this utility model;

[0026] Figure 10 This is the force state of the anti-reverse column of this utility model when rotating forward;

[0027] Figure 11 This is the force state of the anti-reverse column of this utility model when it reverses.

[0028] In the picture:

[0029] Drive wheel 1; transmission wheel 2; anti-reverse component 3; limit seat 31; first anti-reverse arm 32; second anti-reverse arm 33; limit groove 4; correction belt housing 51; belt core 52; scribbling nozzle 53; housing bottom 511; housing cover 512; first wheel post 54; second wheel post 55. Detailed Implementation

[0030] Example 1

[0031] This utility model discloses a silent anti-reverse transmission mechanism, such as... Figure 2 and Figure 3 As shown, the device includes a drive wheel 1 and a transmission wheel 2 mounted on the correction tape housing, and a backstop structure disposed between the drive wheel 1 and the transmission wheel 2. The backstop structure includes a backstop element 3 and a limiting groove 4 disposed on the correction tape housing. The backstop element 3 is a backstop elastic element made of a soft material, such as conventional rubber. When unidirectional transmission (forward rotation) occurs between the drive wheel 1 and the transmission wheel 2, the backstop element 3 deforms due to flexible contact. When subjected to a force in the opposite direction of transmission (reverse rotation), the force on the backstop element 3 changes, causing it to spring back, thus restricting the reverse transmission of the drive wheel 1 and / or the transmission wheel 2 to prevent backflow.

[0032] This utility model discloses a silent anti-reverse transmission mechanism, which uses a soft material component (i.e., anti-reverse component 3) to make flexible contact between the wheels during unidirectional transmission (forward rotation), eliminating hard impact noise, and also achieves the anti-reverse function by forcibly interfering with the transmission between the wheels in reverse.

[0033] In a preferred embodiment, the anti-reverse component 3 includes a limiting seat 31, a first anti-reverse arm 32, and a second anti-reverse arm 33. The limiting seat 31 is installed and limited within the limiting groove 4. The shape and size of the limiting seat 31 and the limiting groove 4 are respectively matched. A deformation space is formed between the first anti-reverse arm 32 and the second anti-reverse arm 33. The first anti-reverse arm 32 forms a flexible contact with the drive wheel 1, and the second anti-reverse arm 33 forms a flexible contact with the transmission wheel 2.

[0034] Both the driving wheel 1 and the transmission wheel 2 are gears, and the anti-reverse component 3 is located at the inlet position of the meshing start point between the driving wheel 1 and the transmission wheel 2.

[0035] When the gear rotates clockwise, as Figure 4 and Figure 5 The direction indicated by the arrow between the wheels is the forward rotation direction, and the direction indicated by F is the force direction of the anti-reverse component 3 (side force). The anti-reverse elastic component is deformed by being pushed apart by the teeth. Because the material is soft, it will not produce hard knocking noise when it rebounds and contacts the teeth. Soft contact achieves noise reduction.

[0036] When reversed, such as Figure 6 and Figure 7 As shown, the direction indicated by the arrow between the wheels is the reverse direction, and the direction indicated by F is the force direction of the anti-reverse component 3 (force on the top surface). The anti-reverse component 3 is subjected to the opposite force of the gear transmission, that is, the force direction is different, which restricts the interference gear and thus prevents the gear meshing and rotation to achieve the effect of silent anti-reverse.

[0037] As a preferred embodiment, such as Figure 8 and Figure 9 As shown, the anti-reverse component 3 is a anti-reverse post. The bottom of the anti-reverse post is installed and limited in the limiting groove 4. The shape and size of the bottom of the anti-reverse post are matched with those of the limiting groove 4. The anti-reverse post is set at a position close to the point where the interaction force disengages. The anti-reverse post forms a flexible contact with the driving wheel 1 and the transmission wheel 2 respectively.

[0038] Both the driving wheel 1 and the transmission wheel 2 are gears, and the anti-reverse pin is located at the outlet position of the meshing end point between the driving wheel 1 and the transmission wheel 2.

[0039] When the gear rotates clockwise, Figure 10 The direction indicated by the arrow between the wheels is the forward rotation direction, and the direction indicated by F is the direction indicated by the anti-reverse component 3. The anti-reverse component 3 is pushed open by the teeth and deformed outwards towards the gear; the material is soft and elastic and will not produce hard knocking noise when it contacts the teeth (silent).

[0040] When the gears reverse, Figure 11 The direction indicated by the arrow between the wheels is the reverse direction, and the direction indicated by F is the direction indicated by the reversible part 3. The reversible part 3 is subjected to the reverse force of the teeth and is jammed in the gear gap by the tooth limit interference (specifically, the exit position of the meshing end point), which restricts and blocks the gear transmission (reversible).

[0041] Example 2

[0042] A correction tape, Figure 2 As shown, it includes a correction tape housing 51, a tape core 52, a tape scribbling nozzle 53, and the silent anti-reverse transmission mechanism described in Example 1.

[0043] The correction tape housing 51 includes a housing bottom 511 and a housing cover 512. The tape core 52 is mounted on the drive wheel 1. The drive wheel 1 and the transmission wheel 2 are respectively mounted on the housing bottom 511. The tape applicator 53 is mounted on the tape outlet of the housing bottom 511.

[0044] The bottom of the shell 511 is provided with a first wheel post 54 and a second wheel post 55. The drive wheel 1 is mounted on the first wheel post 54 and the transmission wheel 2 is mounted on the second wheel post 55.

[0045] The above embodiments and accompanying drawings are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A silent, non-reverse transmission mechanism, characterized in that: The device includes a drive wheel and a transmission wheel mounted on the correction tape housing, and a backstop mechanism disposed between the drive wheel and the transmission wheel. The backstop mechanism includes a backstop member and a limiting groove disposed on the correction tape housing. The backstop member is a backstop elastic member made of soft material. When the drive wheel and the transmission wheel are in unidirectional transmission, the backstop member makes flexible contact and deforms. When the backstop member is subjected to a force in the reverse direction of transmission, the force on the backstop member changes and it rebounds, thus restricting the reverse transmission of the drive wheel and / or the transmission wheel.

2. The silent anti-reverse transmission mechanism as described in claim 1, characterized in that: The anti-reverse component includes a limiting seat, a first anti-reverse arm, and a second anti-reverse arm. The limiting seat is installed and limited within the limiting groove. The shape and size of the limiting seat and the limiting groove are respectively matched. A deformation space is formed between the first anti-reverse arm and the second anti-reverse arm. The first anti-reverse arm forms a flexible contact with the driving wheel, and the second anti-reverse arm forms a flexible contact with the transmission wheel.

3. The silent anti-reverse transmission mechanism as described in claim 2, characterized in that: Both the driving wheel and the transmission wheel are gears, and the anti-reverse component is located at the inlet position of the meshing start point between the driving wheel and the transmission wheel.

4. The silent anti-reverse transmission mechanism as described in claim 1, characterized in that: The anti-reverse component is a anti-reverse post, the bottom of which is installed within the limiting groove. The shape and size of the bottom of the anti-reverse post match those of the limiting groove. The anti-reverse post is positioned near the point where the interaction force disengages, and it forms a flexible contact with both the driving wheel and the transmission wheel.

5. The silent anti-reverse transmission mechanism as described in claim 4, characterized in that: Both the driving wheel and the transmission wheel are gears, and the anti-reverse pin is located at the outlet position of the meshing end point between the driving wheel and the transmission wheel.

6. The silent anti-reverse transmission mechanism as described in claim 1, characterized in that: The anti-reverse component is a rubber component.

7. A correction tape, characterized in that: The device includes a correction tape housing, a tape core, a tape applicator, and a silent anti-reverse transmission mechanism as described in any one of claims 1 to 6. The correction tape housing includes a housing bottom and a housing cover. The tape core is mounted on the drive wheel. The drive wheel and the transmission wheel are respectively mounted on the housing bottom. The tape applicator is mounted on the tape outlet of the housing bottom.

8. A correction tape as described in claim 7, characterized in that: The bottom of the shell is provided with a first wheel post and a second wheel post, the drive wheel is mounted on the first wheel post, and the transmission wheel is mounted on the second wheel post.

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