Silencing correction tape

Abstract

This utility model discloses a silent correction tape, belonging to the technical field of stationery products. It includes a housing, inside which are a tape-feeding pulley mechanism and a tape-retracting pulley mechanism. The correction tape is led out from the tape-feeding pulley, passes through a coating head, and is wound onto the tape-retracting pulley. The tape-feeding gear of the tape-feeding pulley mechanism meshes with the tape-retracting gear of the tape-retracting gear mechanism. The housing also includes a locking gear that meshes with either the tape-feeding or tape-retracting gear. A baffle is provided on the outer edge of the locking gear. When the locking gear rotates in the reverse direction, its teeth contact the inner wall of the baffle to form interference, thus preventing reverse rotation. This utility model's silent correction tape uses a locking gear instead of the original ratchet mechanism, eliminating the intermittent rigid impact of the ratchet mechanism, avoiding a "clicking" sound, and achieving a near-silent performance.

Description

Technical Field

[0001] This utility model relates to the field of stationery technology, and in particular to a silent correction tape. Background Technology

[0002] Correction tape is a common stationery item used to cover up errors or marks on paper. Its basic principle is to move the white covering material on the core of the tape onto the paper by pressing and moving it.

[0003] Common correction tapes typically use a ratchet mechanism inside to prevent the tape core from reversing. However, ratchet mechanisms have the disadvantage of being noisy. During use, the engagement and disengagement of the ratchet will produce a "clicking" sound, which is especially noticeable in quiet environments (such as examination rooms or libraries), creating noise interference.

[0004] Therefore, it is necessary to improve the anti-reverse structure of the existing correction band. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a correction tape with simple structure, reliable anti-reverse capability and extremely low operating noise.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A silent correction tape is provided, including a housing, wherein the housing is provided with a tape feeding wheel mechanism and a tape take-up wheel mechanism, the correction tape is led out from the tape feeding wheel, passes through a coating head and is wound around the tape take-up wheel; the tape feeding gear of the tape feeding wheel mechanism meshes with the tape take-up gear mechanism. The housing is also provided with a locking gear that meshes with the unloading gear or the retracting gear. The outer edge of the locking gear is provided with a baffle. When the locking gear rotates in the opposite direction, the teeth of the gear contact the inner sidewall of the baffle to form interference, so as to prevent reverse rotation.

[0007] Furthermore, the locking gear meshes with the take-up gear.

[0008] Furthermore, there are two locking gears, which are symmetrically arranged with respect to the take-up gear.

[0009] Furthermore, the baffle has an arc-shaped structure, and its arc length covers at least one tooth groove of the locking gear.

[0010] Furthermore, the housing has a shaft hole on its body wall, into which the rotating shaft of the gear can be inserted and rotated.

[0011] Furthermore, the shaft hole is a stepped hole, comprising a guide section with a larger diameter and a load-bearing section with a smaller diameter; The end of the rotating shaft is provided with a radially protruding limiting part, the diameter of which is larger than the diameter of the bearing section and smaller than or equal to the diameter of the inlet section.

[0012] Furthermore, the housing is provided with a belt feeding wheel assembly shaft and a belt take-up wheel assembly shaft, which are used to assemble the belt feeding wheel and the belt take-up wheel, respectively.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The silent correction tape of this utility model uses a locking gear instead of the original ratchet mechanism, which eliminates the intermittent rigid impact of the ratchet mechanism, avoids the "clicking" sound, and achieves a near-silent use effect. 2. In the silent correction tape of this utility model, when rotating in the forward direction, the force exerted by the tape release gear on the tape take-up gear points towards the center of rotation. The resultant force only generates a rotational torque without any radial movement tendency. The center of the locking gear is stable and maintains a gap with the baffle without contact. When rotating in the reverse direction, the correction tape pulls the tape take-up gear to rotate in the opposite direction, causing the tape take-up gear to deviate from the center of rotation under the reaction force. The force is decomposed into a rotational component and a radial component. The radial component pushes the locking gear to move radially, and the teeth press against the baffle to achieve self-locking. Attached Figure Description

[0014] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 A schematic diagram of the assembly structure of the belt feeding and belt taking-up mechanisms; Figure 3 This is a schematic diagram of the bottom shell structure; Figure 4 This is a schematic diagram of the locking gear mounting structure; Figure 5 This is a schematic diagram of the shaft hole structure; Figure 6 This is a schematic diagram of the locking gear structure.

[0015] In the diagram: 1-housing, 2-belt release mechanism, 3-belt take-up mechanism, 4-correction belt, 5-coating head, 6-belt release pulley, 7-belt take-up pulley, 8-belt release gear, 9-belt take-up gear, 10-locking gear, 11-baffle, 12-shaft hole, 13-inlet section, 14-bearing section, 15-rotating shaft, 16-limiting part, 17-belt release pulley assembly shaft, 18-belt take-up pulley assembly shaft. Detailed Implementation

[0016] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] like Figure 1 As shown, this embodiment provides a silent correction tape, including a housing 1. The housing 1 contains a tape-releasing mechanism 2 and a tape-retracting mechanism 3. The correction tape 4 is led out from the tape-releasing wheel 6, passes through a coating head 5, and is wound onto the tape-retracting wheel 7. The tape-releasing gear 8 of the tape-releasing mechanism 2 meshes with the tape-retracting gear 9 of the tape-retracting mechanism 9. The housing 1 contains a tape-releasing wheel assembly shaft 17 and a tape-retracting wheel assembly shaft 18, respectively used for assembling the tape-releasing wheel 6 and the tape-retracting wheel 7. The principle of releasing the correction tape is similar to that of existing correction tapes and will not be described in detail here.

[0019] This embodiment eliminates the original ratchet anti-reverse structure and instead provides a locking gear 10 within the housing 1 that meshes with either the unloading gear 8 or the retracting gear 9. In this embodiment, the locking gear 10 meshes with the retracting gear 9, and a baffle 11 is provided along the outer edge of the locking gear 10. When the locking gear 10 rotates in the reverse direction, its teeth contact the inner wall of the baffle 11, creating interference to prevent reverse rotation. Figure 2-4 As shown, there are two locking gears 10, which are symmetrically arranged with respect to the take-up gear 9. This structure can improve the stability of anti-reverse rotation by symmetrical force application and avoid the problem of uneven force caused by unilateral locking. The baffle 11 is an arc-shaped structure, and its arc length covers at least one tooth groove of the locking gear 10 to ensure that when the locking gear 10 rotates in the reverse direction, the teeth can effectively contact the inner wall of the baffle 11 to form interference. When rotating in the forward direction, the force of the release gear 8 on the take-up gear 9 is along the tangent direction of the gear meshing point, and the resultant force points towards the rotation center of the take-up gear. The resultant force only generates rotational torque and has no radial movement tendency. The locking gear 10 is stable at the center and maintains a gap without contact with the baffle 11. When rotating in the reverse direction, the correction tape 4 pulls the take-up gear 9 to rotate in the reverse direction, causing the take-up gear 9 to deviate from the rotation center under the reaction force. The force is decomposed into rotational component and radial component. The radial component pushes the locking gear 10 to move radially, and the teeth press against the baffle 11 to achieve self-locking.

[0020] The housing 1 has a shaft hole 12 on its body wall, and the rotating shaft 15 of the gear can be inserted into the shaft hole 12 and rotate within it. Specifically, as shown... Figure 5-6As shown, the shaft hole 12 is a stepped hole, including a larger diameter inlet section 13 and a smaller diameter bearing section 14. The end of the rotating shaft 15 is provided with a radially protruding limiting part 16. The diameter of the limiting part 16 is larger than the diameter of the bearing section 14 but smaller than or equal to the diameter of the inlet section 13. The locking gear 10, the rotating shaft 15, and the limiting part 16 are integrally formed. During assembly, utilizing the slight elastic deformation of the plastic, force is applied to press the limiting part 16 past the smaller diameter of the bearing section 14 until the limiting part 16 extends into the inlet section 13. The limiting part 16 is then locked outside the bearing section 14, allowing the rotating shaft 15 to rotate freely within the bearing section 14.

[0021] The silent correction tape of this embodiment uses a locking gear 10 instead of the original ratchet mechanism, which eliminates the intermittent rigid impact of the ratchet mechanism, avoids the "clicking" sound, achieves a near-silent use effect, and the anti-reverse structure is stable and not easily damaged by wear.

[0022] Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-mentioned technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-mentioned technical features or their equivalent features without departing from the inventive concept. For example, technical solutions formed by substituting the above-mentioned features with technical features disclosed in this application (but not limited to) that have similar functions.

Claims

1. A silent correction tape, characterized in that, Includes a housing (1), inside which are provided a tape release mechanism (2) and a tape take-up mechanism (3). The correction tape (4) is led out from the tape release wheel (6), passes through a coating head (5), and is wound around the tape take-up wheel (7). The tape release gear (8) of the tape release mechanism (2) meshes with the tape take-up gear (9) of the tape take-up gear mechanism (9). The housing (1) is also provided with a locking gear (10) that meshes with the belt release gear (8) or the belt take-up gear (9). The outer edge of the locking gear (10) is provided with a baffle (11). When the locking gear (10) rotates in the opposite direction, the teeth of the gear contact the inner side wall of the baffle (11) to form interference, so as to prevent reversal.

2. The silent correction tape according to claim 1, characterized in that, The locking gear (10) meshes with the take-up gear (9).

3. The silent correction tape according to claim 1, characterized in that, There are two locking gears (10), and the two locking gears (10) are arranged symmetrically with respect to the take-up gear (9).

4. The silent correction tape according to claim 1, characterized in that, The baffle (11) has an arc-shaped structure, and its arc length covers at least one tooth groove of the locking gear (10).

5. A silent correction tape according to claim 1, characterized in that, The housing (1) has a shaft hole (12) on its body wall, and the rotating shaft (15) of the gear can be inserted into the shaft hole (12) and rotate in the shaft hole (12).

6. A silent correction tape according to claim 5, characterized in that, The shaft hole (12) is a stepped hole, including a larger diameter inlet section (13) and a smaller diameter bearing section (14). The end of the rotating shaft (15) is provided with a radially protruding limiting part (16), the diameter of which is greater than the diameter of the bearing section (14) and less than or equal to the diameter of the inlet section (13).

7. A silent correction tape according to claim 1, characterized in that, The housing (1) is provided with a pulley assembly shaft (17) for feeding the pulley and a take-up pulley assembly shaft (18) for assembling the pulley (6) and the take-up pulley (7), respectively.

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