A film applicator push button structure facilitating tape replacement

Abstract

The application discloses a film applicator push button structure convenient for replacing a belt, comprising a body and a filling body for supplying and recovering a film belt. The body comprises a first shell and a second shell capable of being relatively opened and closed, a front opening is formed at the front ends of the first shell and the second shell, and a space for accommodating the filling body is formed between the first shell and the second shell, so that the filling body is separably combined therebetween. The body further comprises a push button, a sliding seat and an applicator head capable of moving forward and backward synchronously between a front position and a rear position. The push button is arranged on the first shell and can move forward and backward along a guide groove of the first shell. When the body is synchronously in the front position, the applicator head is extended out of the front opening and can abut against the film belt of the filling body, and the first shell and the second shell are locked to prevent relative opening. When the body is synchronously in the rear position, the applicator head is withdrawn into the front opening and can be loose with the film belt of the filling body, and the first shell and the second shell are unlocked to be relatively opened.

Description

Technical Field

[0001] This invention relates to the field of film applicator technology, specifically to a push-button structure for a film applicator that facilitates tape replacement. Background Technology

[0002] Conventional push-button type film applicators (commonly known as correction tapes) mostly use a push button instead of a rear button to move the tape assembly back and forth relative to the housing, allowing the applicator head of the tape assembly to extend and retract relative to the housing, achieving the function of extending forward when in use and retracting backward when not in use. For example, the push-button locking structure of the film transfer device (correction tape) shown in Chinese Patent Publication No. I403424 primarily provides adjustment of the extension or retraction of the applicator head when in use or not in use. Although this case also includes a function to adjust the extension of the rear eraser, from a practical standpoint, correction tape has far greater versatility than an eraser. Therefore, the presence or absence of an eraser does not affect consumer choice or preference. A cumbersome and complex push-button structure inevitably leads to increased material and production costs, as well as reduced ease of use, thus reducing product competitiveness and making it difficult to meet consumer preferences and demands.

[0003] Another example is the coating transfer tool (correction tape) shown in Chinese Patent Publication No. 108068446, which discloses a push-button correction tape structure with a gear transmission mechanism and a transfer head separating from a replacement component (core tape assembly). The push-button structure shown in this case mainly drives the transfer head to extend or retract relative to the outer casing when in use and not in use. Since the transfer head and the replacement component (coating tape) do not move synchronously, in order to avoid the problem of the transfer head not being able to hold the coating tape tightly after being pushed forward during use, the push-button structure of this case has a complex linkage mechanism inside, so that when the transfer head is moved, the gear transmission mechanism is activated to tighten the coating tape. However, in the actual application of this invention (i.e., PLUS WH-665 MR2 mini correction tape), due to its small size and complex and compact structure, the push-button parts cannot cooperate smoothly with each other, and jamming often occurs during the push-operation, causing difficulties in use.

[0004] In view of the fact that most of the known push-button type film applicators on the market have the disadvantage of being inconvenient to move due to their complex structure and compact parts, the inventor of this case has specially studied and improved this method, and completed this invention through continuous attempts. Summary of the Invention

[0005] The purpose of this invention is to provide a push button structure for a film applicator that facilitates tape replacement, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a push button structure for a film applicator that facilitates tape replacement, comprising a body and a filler for supplying and retrieving film tape. The body includes a first housing and a second housing that can be opened and closed relative to each other, with a front opening formed at the front end of the first housing and the second housing, and a space for accommodating the filler formed between the first housing and the second housing, allowing the filler to be detachably attached therein. The body further includes a push button, a slide, and an applicator head that can move synchronously back and forth between a front position and a rear position. The push button is disposed in the first housing and can move back and forth along a guide groove in the first housing. The slide connects to the push button and is located between the first housing and the second housing, while the applicator head is disposed at the front end of the slide. The slide has a first positioning part and a second positioning part on opposite sides for locking the first housing and the second housing, respectively. The first housing has a first positioned part for engaging the first positioning part in the front position, and the second housing has a second positioned part for engaging the second positioning part in the front position.

[0007] When the push button, slide, and applicator are in the front position, the applicator extends out of the front opening and presses against the film strip of the filler. The first positioning part and the second positioning part can respectively engage with the first positioned part and the second positioned part, locking the first housing and the second housing and preventing them from opening relative to each other. When the push button, slide, and applicator are in the rear position, the applicator retracts into the front opening and can detach from the film strip of the filler. The first positioning part and the second positioning part disengage from the first positioned part and the second positioned part, unlocking the first housing and the second housing and allowing them to open relative to each other.

[0008] Preferably, the first housing is further provided with a front positioning part and a rear positioning part at the position of the guide groove, which are respectively used to position the push button in the front position and the rear position.

[0009] Preferably, the slide extends an elastic arm with a reset elasticity on one side of the first positioning part, and the slide is connected to the push button via the elastic arm. When the push button is pressed, the elastic arm can elastically shift in the direction of pressure.

[0010] Preferably, the elastic arm is further provided with a positioning protrusion, and the front positioning part and the rear positioning part are recesses that can be engaged and positioned by the positioning protrusion; thereby, when the elastic arm is pressed and deviated, the positioning protrusion can disengage from the front positioning part or the rear positioning part, so that the push button can move back and forth along the guide groove; and when the push button moves to the front position or the rear position, the elastic arm can elastically reset after the pressure is released, so that the positioning protrusion engages and is positioned in the front positioning part or the rear positioning part, thereby positioning the push button together with the slide and the applicator head in the front position or the rear position.

[0011] Preferably, the push button is located on the surface of the first housing and is fixed to the elastic arm via a connecting part with a guide groove.

[0012] Preferably, the applicator head includes a pressing part horizontally disposed at the front end for pressing against the film strip, and the first housing is provided with a cover cylinder parallel to the pressing part and a cover pivotally disposed on the cover cylinder for covering the applicator head on one side outside the front opening.

[0013] Preferably, the first positioning part and the first positioned part, and the second positioning part and the second positioned part are latches and slots that can engage and position each other.

[0014] Preferably, the second shell system has a pivot portion at its rear end, and the pivot portion is pivotally connected to the rear end of the first shell, so that the second shell can pivotally open and close relative to the first shell.

[0015] Preferably, the first housing is provided with a supply shaft assembly and a recovery shaft assembly for positioning the filler, and includes a supply reel that can be combined with the supply shaft assembly and a recovery reel that can be combined with the recovery shaft assembly.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] When the present invention is in the front position, the applicator extends out of the front opening and presses against the film strip of the filler, and the first and second housings are locked and prevented from opening relative to each other. When the present invention is in the rear position, the applicator retracts into the front opening and can detach from the film strip of the filler, and the first and second housings are unlocked and can open relative to each other. Attached Figure Description

[0018] Figure 1 This is a schematic diagram showing the overall appearance of the film applicator according to an embodiment of the present invention;

[0019] Figure 2 This is an exploded view of the main structure of an embodiment of the present invention;

[0020] Figure 3 This is a three-dimensional schematic diagram of a partial component of an embodiment of the present invention;

[0021] Figure 4 This is a cross-sectional view of a partial component according to an embodiment of the present invention;

[0022] Figure 5 This is a cross-sectional view of the push button positioned in the front position according to an embodiment of the present invention;

[0023] Figure 6 for Figure 5 A cross-sectional schematic diagram of the push button under pressure operation;

[0024] Figure 7 for Figure 6 A cross-sectional view of the push button moving backward.

[0025] Figure 8 This is a cross-sectional view of the push button positioned at the rear position according to an embodiment of the present invention;

[0026] Figure 9 This is a three-dimensional schematic diagram of the belt changing process according to an embodiment of the present invention.

[0027] In the figure: 11, front opening; 20, first housing; 21, first positioning part; 22, guide groove; 221, front positioning part; 222, rear positioning part; 25, sleeve cover cylinder; 26, sleeve cover; 40, push button; 41, connecting part; 50, slide; 51, extension part; 52, elastic arm; 521, positioning protrusion; 52, top support; 53, first positioning part; 54, second positioning part; 60, application head; 61, pressing part. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] like Figure 1 and Figure 2 As shown, the film applicator 1 in this embodiment mainly consists of a body 10 and a filler 70. The body 10 includes a first housing 20 and a second housing 30 disposed on two opposite sides, and a front opening 11 is formed at the front end of both, and a space is formed between the two to accommodate the filler 70, so that the filler 70 can be detachably assembled into the body 10.

[0031] In this embodiment, the second housing 30 is provided with a pivot portion 32 at its rear end, and is pivotally connected to the rear end of the first housing 20 via the pivot portion 32, so that the first housing 20 and the second housing 30 can pivotally open and close relative to each other.

[0032] The first housing 20 has a guide groove 22 at the front section near the front opening 11, and a push button 40 on the outer side and a slide block 50 on the inner side are provided in the guide groove 22 so that the push button 40 and the slide block 50 can move back and forth along the guide groove 22; the first housing 20 also has a supply shaft assembly 23 and a recovery shaft assembly 24 for the filling body 70 to be engaged and engaged on the inner side of the middle and rear section, as well as a connecting gear and other components that drive the two, wherein the supply shaft assembly 23 is engaged and positioned with a supply reel 71 corresponding to the filling body 70, and the recovery shaft assembly 24 is engaged and positioned with a recovery reel 72 corresponding to the filling body 70.

[0033] Furthermore, the first housing 20 is also provided with a cover shaft cylinder 25 and a cover 26 on one side outside the front opening 11. The cover shaft cylinder 25 is approximately parallel to a pressing part 61 horizontally disposed at the front end of the applicator head 60, and the cover 26 is pivotally disposed on the cover shaft cylinder 25 to cover the applicator head 60 when not in use.

[0034] Please refer to the following as well. Figure 3 and Figure 4 In this embodiment, the slide 50 is located between the first housing 20 and the second housing 30, and an applicator head 60 is provided thereon, which can move back and forth with the slide 50. The slide 50 has a second positioning part 54 on the side near the second housing 30 and a first positioning part 53 on the side near the first housing 20. An extension part 51 and an elastic arm 52 with a reset elasticity are formed on the side of the first positioning part 53. The push button 40 is connected to the elastic arm 52 through a connecting part 41 and a guide groove 22.

[0035] The push button 40, slide 50, and applicator head 60 can move synchronously back and forth between a front position and a rear position along the direction of the guide groove 22. The guide groove 22 is provided with a front positioning part 221 and a rear positioning part 222 at corresponding positions, which are used to position the push button 40 in the front position and the rear position, respectively. Furthermore, the first housing 20 and the second housing 30 are respectively provided with a first positioning part 21 and a second positioning part 31 near the front opening 11. The first positioning part 21 is used for the first positioning part 53 to engage in the front position, and the second positioning part 31 is used for the second positioning part 54 to engage in the front position.

[0036] Therefore, when the push button 40, slide 50, and applicator 60 are moved or positioned in the front position, the applicator 60 extends out of the front opening 11 and presses against the film strip 73 of the filler 70. The first positioning part 53 and the second positioning part 54 can respectively engage with the first positioned part 21 and the second positioned part 31, so that the first housing 20 and the second housing 30 are relatively locked to each other and cannot be opened relative to each other. When the push button 40, slide 50, and applicator 60 are moved or positioned in the rear position, the applicator 60 retracts into the front opening 11 and can loosen from the film strip 73 of the filler 70. The first positioning part 53 and the second positioning part 54 respectively disengage from the first positioned part 21 and the second positioned part 31, so that the first housing 20 and the second housing 30 are unlocked to each other and can be pivotally opened relative to each other.

[0037] In feasible embodiments, the first positioning part 53 and the first positioned part 21, and the second positioning part 54 and the second positioned part 31 are respectively a latch and a slot that can engage and position each other.

[0038] In this embodiment, the elastic arm 52 of the slide 50 is located in the center of the annular extension 51, so that the elastic arm 52 can elastically shift when the push button 40 is pressed, and can elastically restore its original shape or the shifted position when the pressure is removed.

[0039] Furthermore, the elastic arm 52 is provided at its end or at an appropriate position with a positioning protrusion 521 that can interact with the front positioning part 221 and the rear positioning part 222 (e.g., Figures 4 to 8 As shown), the front positioning part 221 and the rear positioning part 222 are recesses that can be engaged and positioned by the positioning protrusion 521. In this embodiment, a push top 522 for supporting the push button 40 is also provided on the positioning protrusion 521. In this way, when the push button 40 is pressed, it can also be pressed to make the elastic arm 52 deflected. The positioning protrusion 521 can then disengage from the front positioning part 221 or the rear positioning part 222, so that the push button 40 can move back and forth along the guide groove 22. When the push button 40 moves to the front position or the rear position, the elastic arm 52 can elastically reset after the pressure is released, so that the positioning protrusion 521 is engaged and positioned in the front positioning part 221 or the rear positioning part 222, thereby enabling the push button 40 together with the slide 50 and the applicator head 60 to be positioned in the front position or the rear position.

[0040] In practical applications, this embodiment, such as Figure 5As shown, the push button 40, slide 50 and applicator head 60 are normally positioned in the front position, with the applicator head 60 protruding from the front opening 11. At this time, the first positioning part 53 and the second positioning part 54 can respectively engage with the first positioned part 21 and the second positioned part 31, so that the first housing 20 and the second housing 30 are locked together. The user can apply the applicator after lifting the cover 26, and flip the cover 26 back to cover the applicator head 60 when not in use.

[0041] When the coating on the thin film belt 73 is exhausted and the filler 70 needs to be replaced, such as Figure 6 As shown, the user can first press the push button 40, causing the elastic arm 52 to be pressed and shifted. At this time, the positioning protrusion 521 on the elastic arm 52 can disengage from the front positioning part 221. Then, the user can push the push button 40 backward (as shown). Figure 7 (As shown), and the pressing force is released. At this time, the slide 60 and the applicator head 60 move backward synchronously with the push button 40. The first positioning part 53 and the second positioning part 54 on the slide 50 can disengage from the first positioned part 21 and the second positioned part 31 respectively, releasing the relative locking state between the first housing 20 and the second housing 30. At the same time, the applicator head 60 retracts into the front opening 11 and can form a loose state with the film tape 73. When it moves to the rear position, the elastic arm 52 can use its elastic reset ability to make the positioning protrusion 521 engage and be positioned in the rear positioning part 222, that is, as shown. Figure 8 As shown, the user can now directly open the first housing 20 and the second housing 30 (as shown). Figure 9 As shown), the filling material 70 can be replaced more easily without having to unlock the housing.

[0042] When the new filler 70 is inserted, the film tape 73 is detached from the retracted applicator head 60. Then, the user only needs to close the first housing 20 and the second housing 30, and operate the push button 40 to move forward to the forward position, so that the applicator head 60 can move forward to press against the film tape 73, and simultaneously lock the first housing 20 and the second housing 30. The tape replacement process is extremely easy and convenient.

[0043] As described above, the improved push button 40 of this invention has an extremely simple pushing mechanism, which can maintain a high degree of smoothness without the need for a gear mechanism. Moreover, the movement of the push button 40 can simultaneously lock and unlock the housing, simplifying the belt changing process and improving convenience. It is a creation that meets the patent requirements and is also practical. Therefore, a patent application is filed in accordance with the law. However, the above description is only a description of the preferred embodiment of this invention. All variations, modifications, alterations or equivalent substitutions that extend from the technical means and scope of this invention should fall within the scope of this patent application.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A push-button structure for a film applicator that facilitates tape replacement, comprising a body and a filler for supplying and retrieving film tape, the body including a first housing (20) and a second housing that can be opened and closed relative to each other, a front opening (11) formed at the front end of the first housing (20) and the second housing, and a space for accommodating the filler formed between the first housing (20) and the second housing; wherein, The main body also includes a push button (40), a slide (50), and an applicator (60) that can move back and forth synchronously between a front position and a rear position. The push button (40) is disposed on the first housing (20) and can move back and forth along a guide groove (22) of the first housing (20). The slide (50) is connected to the push button (40) and is located between the first housing (20) and the second housing. The applicator (60) is disposed at the front end of the slide (50). The slide (50) is characterized in that: the slide (50) is provided with a first positioning part (53) and a second positioning part (54) on opposite sides for locking the first housing (20) and the second housing respectively; the first housing (20) is provided with a first positioning part (21) for engaging the first positioning part (53) in the front position, and the second housing is provided with a second positioning part for engaging the second positioning part (54) in the front position. When the push button (40), slide (50) and applicator (60) are moved or positioned in the front position, the applicator (60) extends out of the front opening (11) and presses against the film strip of the filler. The first positioning part (53) and the second positioning part (54) can respectively engage with the first positioned part (21) and the second positioned part (31), so that the first housing (20) and the second housing (30) are relatively locked to each other and cannot be opened relative to each other. When the push button (40), slide (50) and applicator (60) are moved or positioned in the rear position, the applicator (60) retracts into the front opening (11) and can loosen from the film strip of the filler. The first positioning part (53) and the second positioning part (54) disengage from the first positioned part (21) and the second positioned part (31), so that the first housing (20) and the second housing (30) are unlocked to each other and can be pivotally opened relative to each other.

2. The push-button structure for a film applicator that facilitates tape replacement according to claim 1, characterized in that: The first housing (20) is further provided with a front positioning part (221) and a rear positioning part (222) at the position of the guide groove (22).

3. The push-button structure for a film applicator that facilitates tape replacement according to claim 1, characterized in that: The slide (50) extends a resilient arm (52) with a reset elasticity on one side of the first positioning part (53), and the slide (50) is connected to the push button (40) via the resilient arm (52).

4. The push-button structure for a film applicator that facilitates tape replacement according to claim 3, characterized in that: The elastic arm (52) is further provided with a positioning protrusion (521).

5. The push-button structure for a film applicator that facilitates tape replacement according to claim 3, characterized in that: The push button (40) is located on the surface of the first housing (20) and is fixed to the elastic arm (52) by a connecting part (41) through a guide groove (22).

6. A push-button structure for a film applicator that facilitates tape replacement according to any one of claims 1-5, characterized in that: The applicator (60) includes a pressing part (61) horizontally disposed at the front end for pressing against the film strip, and the first housing (20) has a cover cylinder (25) parallel to the pressing part (61) and a cover (26) pivotally disposed on the cover cylinder (25) for covering the applicator (60) on one side outside the front opening (11).

7. The push-button structure for a film applicator that facilitates tape replacement according to claim 1, characterized in that: The first positioning part (53) and the first positioned part (21), and the second positioning part (54) and the second positioned part are latches and slots that can engage and position each other.

8. The push button structure for a film applicator that facilitates tape replacement according to claim 1, characterized in that: The second housing has a pivot portion at its rear end, and is pivotally connected to the rear end of the first housing (20) via the pivot portion.

9. The push button structure for a film applicator that facilitates tape replacement according to claim 1, characterized in that: The first housing (20) is provided with a supply shaft assembly and a recovery shaft assembly for positioning the filling material.

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