Silent correction tape

Abstract

The present invention discloses a silent alteration tape, comprising a shell, a tape head is arranged on the outer side of the shell, the shell has an inner cavity, a tape delivery wheel and a tape take-up wheel are arranged in the inner cavity respectively, a tape core is connected in sequence between the tape delivery wheel, the tape take-up wheel and the tape head, a first rotating component, a second rotating component and a third rotating component are also arranged in the inner cavity, the first rotating component and the second rotating component have opposite rotation directions, the third rotating component is transmission-connected with the first rotating component, the first rotating component can drive the third rotating component to rotate when rotating, the first rotating component and the third rotating component have opposite rotation directions, a guide groove for rotating in cooperation with the third rotating component and guiding movement is arranged in the inner cavity of the shell, the guide groove is extended along the outer edge of the first rotating component, and the two ends of the guide groove are respectively arranged to point away from and close to the second rotating component. The silent alteration tape of the present invention is not only simple in structure and has few parts, but also has both check and silent effects.

Description

Technical Field

[0001] The present invention relates to a silent correction tape. Background Art

[0002] At present, the correction tape (also called correction tape) in the prior art usually includes a take-up wheel and a take-out wheel, and a transmission connection is formed between the take-up wheel and the take-out wheel, wherein the take-up wheel is used to wind and recycle the used belt core. In order to realize the one-way conveyance of the belt core, the correction tape usually also includes a one-way limiting mechanism, which usually includes a ratchet connected to the take-up wheel or the take-out wheel, and a claw elastically overlapped on the ratchet. When the belt core is conveyed in the normal use direction, the claw can move along the ratchet part of the ratchet; when the belt core is conveyed in the reverse direction, the claw and the ratchet part form a limiting fit to prevent the belt core from being conveyed in the reverse direction. For example, a non-reverse correction tape disclosed in a Chinese utility model patent (CN201070937Y) discloses a similar non-reverse structure.

[0003] Due to the existence of the above-mentioned limiting mechanism, when the correction tape is in normal use, the claw will jump and make a rattling sound when passing through each ratchet tooth of the ratchet wheel, which will generate noise. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a silent alteration tape, which has a simple structure, fewer parts, and has both non-return and silent effects.

[0005] To achieve the above-mentioned purpose, the present invention provides a silent alteration tape, comprising a shell, a tape head is arranged on the outer side of the shell, the shell has an inner cavity, a tape delivery wheel and a tape take-up wheel are respectively arranged in the inner cavity, a tape core is sequentially connected between the tape delivery wheel, the tape take-up wheel and the tape head, and a first rotating component, a second rotating component and a third rotating component which can be driven to rotate based on the conveyance of the tape core are also arranged in the inner cavity, the first rotating component and the second rotating component have opposite rotation directions, the third rotating component is transmission-connected with the first rotating component, the first rotating component can drive the third rotating component to rotate when rotating, the first rotating component and the third rotating component have opposite rotation directions, the inner cavity of the shell is provided with The guide groove cooperates with the third rotating component to rotate and guide the movement, and the guide groove extends along the outer edge of the first rotating component, and the two ends of the guide groove are respectively pointed to the directions away from and close to the second rotating component. When the first rotating component rotates in the reverse conveying direction of the belt core, it can drive the third rotating component to move along the guide groove toward the second rotating component. When the third rotating component contacts the second rotating component, it can form a limiting cooperation with it to restrict the second rotating component from rotating in the reverse conveying direction of the belt core; when the first rotating component rotates in the forward conveying direction of the belt core, it can drive the third rotating component to move along the guide groove in the direction away from the second rotating component, thereby releasing the rotation restriction on the second rotating component.

[0006] Furthermore, the first rotating component and the second rotating component both include mutually meshing teeth, and the first rotating component and the second rotating component are transmission-connected via the teeth.

[0007] Furthermore, the third rotating component includes a tooth portion, the tooth portion of the third rotating component meshes with the tooth portion of the first rotating component, the first rotating component and the third rotating component form a transmission connection through the tooth portions of both, and the tooth portion of the third rotating component is also used to cooperate with the tooth portion of the second rotating component to engage and limit.

[0008] Furthermore, the guide groove is an arc-shaped guide groove, and the arc center of the arc-shaped guide groove is located on the rotation axis center of the first rotating component.

[0009] Furthermore, the first rotating component, the second rotating component, the third rotating component, the belt-out wheel and the belt-receiving wheel are all rotatably connected between two side walls of the inner cavity, and the guide groove is arranged on the side wall of the inner cavity of the shell.

[0010] Furthermore, the guide groove is arranged on a side wall of the inner cavity of the shell, one end of the third rotating component includes a connecting shaft movably plugged into the guide groove, and a flat limiting portion is arranged on the third rotating component. The limiting portion of the third rotating component forms an axial limiting fit with the first rotating component or the second rotating component.

[0011] Furthermore, the guide groove is connected to the outside of the shell.

[0012] Further, the first rotating component and the belt delivery wheel are coaxially fixedly connected, and the second rotating component and the belt receiving wheel are coaxially fixedly connected; or the first rotating component and the belt receiving wheel are coaxially fixedly connected, and the second rotating component and the belt delivery wheel are coaxially fixedly connected.

[0013] The beneficial effect of the present invention is that when the core of the alteration tape is reversely transported, the first rotating component can drive the third rotating component to move along the guide groove toward the second rotating component. Since the third rotating component and the second rotating component have the same rotation direction, the third rotating component can form a limit fit with the second rotating component to limit the rotation of the second rotating component in the reverse transport direction of the core, thereby preventing the core from continuing to be transported in the reverse transport direction, and playing a reverse check function. The use of this reverse check structure is not only simple in structure and easy to assemble, but also does not generate rattling noise when in use, and can achieve a silent effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 An exploded view of an embodiment of the present invention;

[0015] Figure 2 is a cross-sectional view of an embodiment of the present invention;

[0016] Figure 3 It is a partial schematic diagram of an embodiment of the present invention in a normal use state;

[0017] Figure 4 It is a partial schematic diagram of the embodiment of the present invention in the backstop state;

[0018] Figure 5 Schematic diagram of a guide groove according to an embodiment of the present invention Figure 1 ;

[0019] Figure 6 Schematic diagram of a guide groove according to an embodiment of the present invention Figure 2 ;

[0020] Figure 7 The structure of the third rotating member of the embodiment of the present invention is Figure 1 ;

[0021] Figure 8 The structure of the third rotating member of the embodiment of the present invention is Figure 2 ;

[0022] Fig. 9 4 is a structural diagram of a second rotating component according to an embodiment of the present invention. DETAILED DESCRIPTION

[0023] The embodiment of the silent correction tape of the present invention is as follows: Figure 1-9As shown, it includes a shell 4, a tape head 5 is arranged on the outside of the shell 4, the shell 4 has an inner cavity, and a tape delivery wheel 61 and a tape take-up wheel 62 are respectively arranged in the inner cavity, and a tape core 0 is connected between the tape delivery wheel 61, the tape take-up wheel 62 and the tape head 5 in sequence, and a first rotating component 1, a second rotating component 2, and a third rotating component 3 that can be driven to rotate based on the transportation of the tape core 0 are also arranged in the inner cavity. The first rotating component 1 and the second rotating component 2 can be transmission components between the tape delivery wheel 61 and the tape take-up wheel 62 of the altered tape, and can also be components linked with the transmission component that establishes a transmission connection between the tape delivery wheel and the tape take-up wheel, so that the tape core can also drive the first rotating component 1 and the second rotating component 2 to rotate while being used for transportation. The first rotating component 1 and the second rotating component 2 have opposite rotation directions, and the third rotating component 3 is transmission-connected to the first rotating component 1. The first rotating component 1 can drive the third rotating component 3 to rotate when rotating. The first rotating component 1 and the third rotating component 3 have opposite rotation directions. A guide groove 41 for rotating and guiding the third rotating component 3 is provided in the inner cavity of the shell 4. The guide groove 41 extends along the outer edge of the first rotating component 1, and the two ends of the guide groove 41 are respectively pointed to the direction away from and close to the second rotating component 2. When the first rotating component 1 rotates in the reverse conveying direction of the belt core, it can drive the third rotating component 3 to move along the guide groove 41. When the third rotating component 3 is driven to rotate by the first rotating component 1, the friction force between the third rotating component 3 and the guide groove 41 when in contact can drive the third rotating component 3 to "roll" toward the second rotating component 2 along the inner wall of the guide groove 41 on the side away from the first rotating component 1. Since the rotation directions of the first rotating component 1 and the third rotating component 3 are also opposite, the third rotating component 3 and the second rotating component 2 have the same rotation direction. When the third rotating component 3 contacts the second rotating component 2, it can form a limit fit with the second rotating component 2 to limit the rotation of the second rotating component 2 in the direction of reverse conveying of the belt core, thereby preventing the belt core from being conveyed in reverse (see Figure 4 Similarly, when the first rotating member 1 rotates in the positive conveying direction of the belt core, it can drive the third rotating member 3 to "roll" along the inner wall of one side of the guide groove 41 in the direction away from the second rotating member 2. When the third rotating member 3 is separated from the second rotating member 2, the rotation restriction on the second rotating member 2 can be released, so that the second rotating member 2 can rotate normally (see Figure 3 ), thereby achieving the effect of forward conveying of the baseband and prohibiting reverse transmission. Since the present invention does not have components such as ratchets and claws, no "da da da" noise will be generated during use.

[0024] In addition, the first rotating member 1 drives the third rotating member 3 to rotate, and based on the contact and cooperation between the third rotating member 3 and the inner wall of one side of the guide groove 41, the third rotating member 3 can move along the two ends of the guide groove 41 while rotating.

[0025] In this embodiment, the first rotating component 1 and the second rotating component 2 both include mutually meshing teeth (respectively 10 and 20), which are annular and concentric with the rotation axis of the first rotating component 1 or the second rotating component 2. The first rotating component 1 and the second rotating component 2 are connected in transmission through their teeth, so that the first rotating component 1 and the second rotating component 2 can rotate in opposite directions during transmission. Of course, in other embodiments, the first rotating component 1 and the second rotating component 2 can also be connected in transmission through a transmission gear set.

[0026] The third rotating component 3 also includes a tooth portion 30, which is annular and concentric with the rotation axis of the third rotating component 3. The tooth portion of the third rotating component 3 meshes with the tooth portion of the first rotating component 1. The first rotating component 1 and the third rotating component 3 form a transmission connection through the tooth portions of the two, so that the first rotating component 1 and the third rotating component 3 can rotate in opposite directions during transmission, so that the third rotating component 3 and the second rotating component 2 always maintain the same rotation direction. The tooth portion of the third rotating component 3 is also used to engage with the tooth portion of the second rotating component 2 to limit the rotation of the second rotating component 2 when the third rotating component 3 with the same rotation direction contacts the second rotating component 2. When the first rotating component 1, the second rotating component 2 and the third rotating component 3 are meshed at the same time, the first rotating component 1 can drive the third rotating component 3 to separate from the second rotating component 2 through a slight rotation by utilizing the small gap between the tooth portions, thereby avoiding the situation of being stuck.

[0027] In addition, in other embodiments, friction wheels can be provided on the first rotating component 1, the second rotating component 2 and the third rotating component 3, and the friction wheels are used to realize the contact transmission connection between the first rotating component 1 and the second rotating component 2. At the same time, the friction wheels can also be used to limit the continued rotation of the second rotating component 2 and the third rotating component 3 when they are in contact, which can also achieve the same effect.

[0028] The guide groove 41 is an arc-shaped guide groove, the arc center of which is located on the rotation axis of the first rotating component 1. This arrangement can ensure that the second rotating component 2 can move circumferentially around the rotation axis of the first rotating component 1. Ensuring a stable spacing distance between the first rotating component 1 and the second rotating component 2 can improve the effect of the first rotating component 1 driving the second rotating component 2 to rotate and move along the guide groove.

[0029] The axial ends of the first rotating part 1 and the second rotating part 2 are both rotatably connected between the two side walls of the inner cavity, the guide groove 41 is arranged on one side wall of the inner cavity of the shell 4, one end of the third rotating part 3 includes a connecting shaft 31 movably plugged with the guide groove 41, and a flat limiting portion 32 is arranged on the third rotating part 3, and the limiting portion 32 of the third rotating part 3 forms an axial limiting match with the first rotating part 1 or the second rotating part 2. With such a structural design, it is only necessary to open the guide groove 41 on one side wall of the shell 4, so that one end of the third rotating part 3 can be movably connected with the guide groove 41, and the side wall of the shell 4 can limit one axial end of the third rotating part 3, and the limiting portion 32 of the third rotating part 3 can cooperate with the first rotating part 1 or the second rotating part 2 to limit the other axial end of the third rotating part 3, so as to ensure the stability of the third rotating part 3 in the axial direction and improve its operation effect. At the same time, such a design is not only simple in structure, convenient for production and assembly, but also can reduce the precision requirements for parts.

[0030] In other embodiments, guide grooves 41 may be symmetrically provided on the side walls of the inner cavity of the housing 4, and the two ends of the third rotating member 3 may be movably connected to the two guide grooves 41. In this case, the side walls of the inner cavity of the housing 4 may also limit the axial ends of the third rotating member 3, and this structure may achieve the same function and effect.

[0031] like Figure 6 As shown, the guide groove 41 is connected to the outside of the housing 4. This allows the position of the connecting shaft 31 of the third rotating component 3 to be observed from the outside of the housing 4. It is convenient to judge the working state of the backstop. In addition, the problem of jamming can also be solved by operating the connecting shaft 31 to move along the guide groove 41.

[0032] In this embodiment, the first rotating component 1 and the belt-out pulley 61 are coaxially fixedly connected, and the two can rotate synchronously. The belt-out pulley 61 is used to wind up and store unused belt cores. The second rotating component 2 and the belt-receiving pulley 62 are coaxially fixedly connected, and the two can rotate synchronously. The belt-receiving pulley 62 is used to wind up used belt cores. In other embodiments, it can also be: the first rotating component 1 and the belt-receiving pulley are coaxially fixedly connected, and the second rotating component 2 and the belt-out pulley are coaxially fixedly connected. Adopting such a structural design can reduce the number of parts of the product, reduce production costs, simplify the assembly process, and make the operation of the product more stable.

[0033] By adopting the above structure, the belt core 0 drives the output wheel 61 to rotate while being used for transportation, the output wheel 61 drives the first rotating component 1 which is coaxially fixedly connected, the first rotating component 1 drives the second rotating component 2 to rotate through the tooth portion, and the second rotating component 2 drives the coaxially fixedly connected take-up wheel 62 to rotate, so that the output wheel 61 delivers the unused belt core 0 while the take-up wheel 62 reels the used belt core 0.

[0034] The above embodiment is only one of the preferred specific embodiments of the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. A silent alteration tape, comprising a shell, a tape head is arranged outside the shell, the shell has an inner cavity, a tape delivery wheel and a tape take-up wheel are arranged in the inner cavity, and a tape core is connected in sequence between the tape delivery wheel, the tape take-up wheel and the tape head. Features: The inner cavity is also provided with a first rotating component, a second rotating component and a third rotating component which can be driven to rotate based on the conveying of the belt core, the first rotating component and the second rotating component have opposite rotation directions, the third rotating component is transmission-connected to the first rotating component, and the first rotating component can drive the third rotating component to rotate when rotating, and the first rotating component and the third rotating component have opposite rotation directions, and a guide groove which cooperates with the third rotating component to rotate and guide the movement is provided in the inner cavity of the shell body, and the guide groove is extended along the outer edge of the first rotating component, and the two ends of the guide groove are respectively arranged in the direction away from and close to the second rotating component, and the first rotating component can drive the third rotating component to move along the guide groove toward the second rotating component when rotating in the reverse conveying direction of the belt core, and the third rotating component can form a limiting cooperation with the second rotating component to limit the rotation of the second rotating component in the reverse conveying direction of the belt core; when the first rotating component rotates in the forward conveying direction of the belt core, it can drive the third rotating component to move along the guide groove in the direction away from the second rotating component, thereby releasing the rotation restriction of the second rotating component.

2. The silent alteration tape according to claim 1, Features: The first rotating component and the second rotating component both include mutually meshing teeth, and the first rotating component and the second rotating component are transmission-connected via the teeth.

3. The silent alteration tape according to claim 2, Features: The third rotating component includes a tooth portion, the tooth portion of the third rotating component meshes with the tooth portion of the first rotating component, the first rotating component and the third rotating component form a transmission connection through the tooth portions of the two components, and the tooth portion of the third rotating component is also used to cooperate with the tooth portion of the second rotating component to mesh and limit.

4. The silent alteration tape according to claim 1, Features: The guide groove is an arc-shaped guide groove, and the arc center of the arc-shaped guide groove is located on the rotation axis center of the first rotating component.

5. The silent alteration tape according to claim 1, Features: The first rotating component, the second rotating component, the third rotating component, the belt-out wheel and the belt-receiving wheel are all rotatably connected between the two side walls of the inner cavity, and the guide groove is arranged on the side wall of the inner cavity of the shell.

6. The silent alteration tape according to claim 5, Features: The guide groove is arranged on a side wall of the inner cavity of the shell, one end of the third rotating component includes a connecting shaft movably plugged into the guide groove, and a flat limiting portion is arranged on the third rotating component. The limiting portion of the third rotating component forms an axial limiting fit with the first rotating component or the second rotating component.

7. The silent alteration tape according to claim 6, Features: The guide groove is communicated with the outside of the shell.

8. The silent alteration tape according to any one of claims 1 to 7, Features: The first rotating component is coaxially fixedly connected to the belt delivery wheel, and the second rotating component is coaxially fixedly connected to the belt take-up wheel; or the first rotating component is coaxially fixedly connected to the belt take-up wheel, and the second rotating component is coaxially fixedly connected to the belt delivery wheel.

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