Improved automatic zipper puller

Abstract

An improved zipper automatic puller comprises a puller body, a pulling piece, a horse hook, an elastic piece and a cap, the puller body comprises an upper wing plate, a lower wing plate and a connecting column, a front mounting column and a rear mounting column are arranged on the top face of the upper wing plate, a pivot groove and a horse hook mounting hole are formed in the inner side of the front mounting column and the inner side of the rear mounting column respectively, and the two ends of the horse hook are mounted in the pivot groove and the horse hook mounting hole. A containing cavity is formed between the horse hook and the upper wing plate, the top face of the front installation column and the top face of the rear installation column are each provided with a limiting protruding column, the inner side of each limiting protruding column is provided with a limiting notch groove, the two ends of the elastic piece are each provided with an opening groove, and each opening groove is correspondingly inserted into the corresponding limiting notch groove. The elastic sheet is limited between the two limiting convex columns on the horizontal plane and the vertical plane; and the caps are assembled on the front mounting columns and the rear mounting columns. The limiting protruding column and the limiting notch groove can limit the elastic piece in the horizontal plane and the vertical plane, and the elastic piece assembled on the puller body is prevented from being thrown out when the rotating disc rotates.

Description

Technical Field

[0001] The utility model relates to the technical field of zippers, and more specifically to an improved automatic zipper head. Background Art

[0002] The zipper automatic head mainly includes a slider body, a pull tab, a horse hook, a spring piece and a cap, wherein the slider body includes an upper wing plate, a lower wing plate and a chain column, the front end portion of the upper wing plate is connected with the front end portion of the lower wing plate by the chain column and forms a chain tooth guide passage for the chain teeth to pass through, a front mounting column and a rear mounting column are provided on the top surface of the upper wing plate, a pivot groove is provided on the inner side of the front mounting column, a horse hook mounting hole is provided on the inner side of the rear mounting column, the horse hook includes a pivot end, a brake end and an arched portion connecting the pivot end and the brake end, the pivot end is installed in the pivot groove, the brake end is penetrated in the horse hook mounting hole, the arched portion and the top surface of the upper wing plate form a accommodating cavity for accommodating the pull tab rod, the spring piece is installed in the cap, the cap is assembled on the front mounting column and the rear mounting column, and the lower surface of the spring piece is supported on the upper surface of the arched portion.

[0003] When assembling the automatic zipper head of the above structure, the spring piece needs to be pre-clamped in the cap by a spring piece cap assembly machine. In order to save the cost of the spring piece cap assembly machine, many zipper manufacturers have improved the structure of the slider body, respectively adding a convex column on the top surface of the front mounting column and the rear mounting column, and respectively providing an open groove at both ends of the spring piece, and the two open grooves are correspondingly clamped between the two convex columns to form a limit for the spring piece. However, this convex column can only limit the spring piece in the horizontal plane, but after the spring piece is assembled, it needs to be rotated to the next station for cap assembly. Since the spring piece lacks limit in the vertical direction, the spring piece is easily thrown out due to the centrifugal force when rotating, resulting in assembly failure and waste. To this end, we provide an improved automatic zipper head. Utility Model Content

[0004] The utility model provides an improved zipper automatic head to solve the shortcomings of the existing zipper automatic head, such as the spring piece is easily thrown out during assembly, resulting in assembly failure and waste.

[0005] The utility model adopts the following technical solutions:

[0006] An improved zipper automatic head, comprising a slider body, a pull tab, a horse hook, a spring sheet and a cap, wherein the slider body comprises an upper wing plate and a lower wing plate, wherein the upper wing plate and the lower wing plate are connected at the front end by a connecting column, wherein a front mounting column and a rear mounting column are arranged on the top surface of the upper wing plate, wherein a pivot groove is arranged on the inner side of the front mounting column, and a horse hook mounting hole is arranged on the inner side of the rear mounting column, wherein two ends of the horse hook are respectively correspondingly mounted on the pivot groove and the horse hook mounting hole, and a space for accommodating the slider is formed between the horse hook and the upper wing plate A accommodating cavity for the sheet pull rod, a limiting protrusion is respectively provided on the top surface of the front mounting column and the top surface of the rear mounting column, each limiting protrusion is provided with a limiting notch groove facing the inner side of the horse hook, and an opening groove is respectively provided at both ends of the spring sheet, and each opening groove is correspondingly clamped in the limiting notch groove, so that the spring sheet is limited between the two limiting protrusions on both the horizontal plane and the vertical plane; the lower surface of the spring sheet is supported on the top of the horse hook, and the cap is assembled on the front mounting column and the rear mounting column.

[0007] Preferably, the above-mentioned limiting notch groove is arranged at the lower middle part of the inner side of the limiting boss facing the horse hook.

[0008] In a preferred embodiment, the above-mentioned limiting boss is square, the limiting notch groove is a rectangular groove, and the opening groove is a U-shaped groove, and the opening width of the opening groove is slightly larger than the width of the limiting boss in the corresponding direction.

[0009] In a preferred embodiment, the above-mentioned limiting boss is cylindrical, the limiting notch groove is an arc groove no larger than a semicircle, the opening groove is a semicircle with a diameter slightly larger than the diameter of the limiting boss, or is a U-shaped groove with an opening width slightly larger than the diameter of the limiting boss.

[0010] Furthermore, when the above-mentioned opening groove is a U-shaped groove, two bottom corners inside the U-shaped groove are both provided with arc chamfers.

[0011] Specifically, the above-mentioned horse hook includes a pivot end, a brake end and an arched portion connecting the pivot end and the brake end, the pivot end is installed in the pivot groove, the brake end is inserted into the horse hook installation hole, and the arched portion and the top surface of the upper wing plate form the accommodating cavity.

[0012] The utility model can also adopt the following scheme:

[0013] An improved zipper automatic head comprises a slider body, a pull tab, a horse hook, a spring piece and a cap, wherein the slider body comprises an upper wing plate and a lower wing plate, wherein the upper wing plate and the lower wing plate are connected at the front end by a connecting column, wherein a front mounting column and a rear mounting column are arranged on the top surface of the upper wing plate, wherein a pivot groove is arranged on the inner side of the front mounting column, wherein a horse hook mounting hole is arranged on the inner side of the rear mounting column, wherein two ends of the horse hook are respectively correspondingly mounted on the pivot groove and the horse hook mounting hole, wherein an accommodating cavity for accommodating a pull tab rod is formed between the horse hook and the upper wing plate, wherein the front mounting column and the rear mounting column are provided with a front mounting column and a rear mounting column are provided with a rear mounting column ..., wherein the front mounting column and the rear mounting column are provided with a front mounting column and a rear mounting column, wherein the front mounting column and the rear mounting column are provided with a front mounting column and a rear mounting column, wherein the front mounting column and the rear mounting column are provided with a front mounting column and a rear mounting column, wherein the front mounting column and the rear mounting column are provided with a front mounting column and a rear mounting column, wherein the front mounting column and the rear mounting column are provided with a front mounting column and a rear mounting column, wherein the front mounting column and the rear mounting column are provided with a front A limiting boss is respectively provided on the top surface of the front mounting column and the top surface of the rear mounting column, a limiting notch groove is respectively provided on the left and right sides of each limiting boss, an opening groove is respectively provided at both ends of the spring sheet, a clamping strip is respectively provided on both sides of each opening groove, and each clamping strip is correspondingly clamped in the limiting notch groove, so that the spring sheet is limited between the two limiting bosses on both the horizontal and vertical planes; the lower surface of the spring sheet is supported on the top of the horse hook, and the cap is assembled on the front mounting column and the rear mounting column.

[0014] In a preferred embodiment, the above-mentioned limiting protrusion is square, the above-mentioned limiting notch groove is straight-lined; the above-mentioned opening groove is a U-shaped groove, and the above-mentioned clamping strip is long and strip-shaped.

[0015] In a preferred embodiment, the above-mentioned limiting protrusion is cylindrical, the above-mentioned limiting notch groove is straight-lined; the above-mentioned opening groove is an arc groove, and the above-mentioned clamping strip is long strip-shaped.

[0016] From the above description of the structure of the utility model, it can be seen that compared with the prior art, the utility model has the following advantages:

[0017] The zipper automatic head of the utility model has the inner side of the limiting convex column facing the horse hook (or the left and right sides are provided with limiting notch grooves), so that the opening grooves at both ends of the spring piece are correspondingly inserted into the limiting notch grooves (or the clamping strips on both sides of the spring piece are correspondingly clamped into the side walls of the limiting convex column on the left and right sides of the limiting convex column). This way of the opening groove and the limiting notch groove being engaged with each other (or the clamping strip being clamped in the limiting notch groove) can limit the spring piece in the horizontal plane and the vertical plane, prevent the spring piece assembled on the slider body from being thrown out when the turntable rotates, and improve the assembly qualification rate of the zipper automatic head. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the first embodiment of the present utility model.

[0019] Figure 2 This is a schematic diagram of the first embodiment of the present invention.

[0020] Figure 3 It is a cross-sectional view of the first embodiment of the present utility model.

[0021] Figure 4This is a schematic diagram of the decomposition of the second embodiment of the present utility model.

[0022] Figure 5 This is a schematic diagram of the decomposition of the third embodiment of the present utility model.

[0023] Figure 6 This is a schematic diagram of the decomposition of the fourth embodiment of the present utility model. DETAILED DESCRIPTION

[0024] The specific implementation of the present invention is described below with reference to the accompanying drawings. In order to fully understand the present invention, many details will be described below, but for those skilled in the art, the present invention can be implemented without these details. For well-known components, methods and processes, no detailed description will be given below.

[0025] Embodiment 1

[0026] An improved zipper automatic head, referring to Figure 1 and Figure 2 , including a slider body 10, a pull tab 20, a hook 30, a spring sheet 40 and a cap 50. The following description is made with the length of the slider body extending in the front-to-back direction and the width of the slider body in the left-to-right direction. The slider body 10 includes an upper wing plate 11 and a lower wing plate 12, which are connected at the front end by a connecting column 13, and a front mounting column 111 and a rear mounting column 112 are provided on the top surface of the upper wing plate 11.

[0027] Reference Figure 2 A pivot groove 113 is provided on the inner side of the front mounting column 111, and a hook mounting hole 114 is provided on the inner side of the rear mounting column 112. The hook mounting hole 114 is provided on the side that deviates from the central axis of the slider body 10. The hook 30 includes a pivot end 31, a brake end 32, and an arched portion 33 connecting the pivot end 31 and the brake end 32. The pivot end 31 is installed in the pivot groove 113, and the brake end 32 is inserted into the hook mounting hole 114. The arched portion 33 and the top surface of the upper wing plate 11 form a receiving cavity for accommodating the pull rod of the pull tab 20.

[0028] Reference Figure 2 and Figure 3 A front limiting boss 115 is provided on the top surface of the front mounting column 111, and a front limiting notch groove 1150 is provided on the inner side of the front limiting boss 115 facing the horse hook; a rear limiting boss 116 is provided on the top surface of the rear mounting column 112, and a rear limiting notch groove 1160 is provided on the inner side of the rear limiting boss 116 facing the horse hook. Preferably, the front limiting notch groove 1150 and the rear limiting notch groove 1160 are respectively correspondingly arranged at the middle and lower parts of the front limiting boss 115 and the rear limiting boss 116.

[0029] Reference Figure 2 and Figure 3The front limiting boss 115 and the rear limiting boss 116 shown in this embodiment are both square, and the tops of the front limiting boss 115 and the rear limiting boss 116 form a reduced cone angle structure. The front limiting notch groove 1150 and the rear limiting notch groove 1160 are both rectangular grooves, and the rectangular grooves form notches toward the inner side of the horse hook and its two adjacent side surfaces.

[0030] Reference Figure 2 and Figure 3 , an opening slot 41 is respectively provided at both ends of the above-mentioned spring piece 40, and each opening slot 41 is correspondingly inserted into the front limiting notch slot 1150 and the rear limiting notch slot 1160. A clamping strip 42 is formed on both sides of each opening slot 41, and the two clamping strips 42 are correspondingly located on both sides of the front limiting boss 115 (or the rear limiting boss 116), and the two clamping strips may contact or not contact the front limiting boss. Since the front limiting notch slot 1150 and the rear limiting notch slot 1160 are both rectangular slots, the shape of the opening slot 41 in this embodiment is correspondingly U-shaped.

[0031] Reference Figure 2 and Figure 3 , since the spring sheet 40 is a strip-shaped structure before being cut, the opening groove at the rear end of the previous spring sheet and the opening groove at the front end of the next spring sheet are actually divided into two by a rectangular cutout. In order to facilitate the assembly of the opening grooves 41 at both ends of the spring sheet 40 into the front limiting notch groove 1150 and the rear limiting notch groove 1160, the opening width (length along the spring sheet width direction) of the spring sheet opening groove 41 is slightly larger than the width of the front limiting boss 115 (or the rear limiting boss 116) in the corresponding direction, and the depth of each opening groove 41 (length along the spring sheet length direction) is slightly larger than the length of the front limiting boss 115 (or the rear limiting boss 116) in the corresponding direction.

[0032] Embodiment 2

[0033] Reference Figure 4 The main difference between this embodiment and the first embodiment is that the front limiting boss 115 and the rear limiting boss 116 shown in this embodiment are both cylindrical, and the front limiting notch groove 1150 and the rear limiting notch groove 1160 are both arc grooves no larger than a semicircle.

[0034] In order to ensure the limiting effect of the spring piece 40, and at the same time enable the opening groove 41 to be smoothly inserted from the top of the front limiting boss 115 or the rear limiting boss 116 into its corresponding front limiting notch groove 1150 or the rear limiting notch groove 1160, the top ends of the front limiting boss 115 and the rear limiting boss 116 form a spherical shape, and the opening grooves at both ends of the above-mentioned spring piece are composed of a circular punching cut into two semicircles, and the diameter of the semicircle is slightly larger than the diameter of the limiting boss.

[0035] Embodiment 3

[0036] Reference Figure 5 The front limiting boss 115 and the rear limiting boss 116 of this embodiment are also cylindrical. The main difference between this embodiment and the second embodiment is that the opening groove 41 at both ends of the spring piece in this embodiment is a U-shaped groove divided into two by a rectangular punching cut, and the two bottom corners inside the U-shaped groove are provided with arc chamfers.

[0037] In order to ensure the limiting effect of the spring piece and enable the opening groove 41 to be smoothly inserted from above the front limiting boss 115 or the rear limiting boss 116 into its corresponding front limiting notch groove 1150 or the rear limiting notch groove 1160, the opening width of the above-mentioned U-shaped groove is slightly larger than the diameter of the front limiting boss 115 (or the rear limiting boss 116), and the length of the U-shaped groove along the extension direction of the spring piece is greater than or slightly greater than the radius of the front limiting boss 115 (or the rear limiting boss 116).

[0038] Embodiment 4

[0039] Reference Figure 6 The main difference between this embodiment and the previous three embodiments is that: in this embodiment, a front limiting notch groove 1150 is respectively provided on the left and right sides of the front limiting boss 115; a front limiting notch groove 1160 is respectively provided on the left and right sides of the rear limiting boss 116, and an opening groove 41 is respectively provided at both ends of the spring piece 40, and a clamping strip 42 is respectively provided on both sides of each opening groove 41, and each clamping strip 42 is correspondingly clamped in the front limiting notch groove 1150 or the rear limiting notch groove 1160, so that the spring piece 40 is limited between the two limiting bosses in both the horizontal plane and the vertical plane.

[0040] The front limiting boss 115 and the rear limiting boss 116 shown in this embodiment are square, the front limiting notch groove 1150 and the rear limiting notch groove 1150 are both in the shape of a straight line, the two limiting notches are parallel to each other, and are extended along the length direction of the slider body; the opening groove 41 is a U-shaped groove, and the clamping strip 42 is a long strip. Of course, in other embodiments, the front limiting boss or the rear limiting boss can also be round, and the opening groove 41 is an arc groove.

[0041] The above is only a specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial changes to the utility model using this concept shall be deemed as an infringement of the protection scope of the utility model.

Claims

1. An improved zipper automatic head, comprising a slider body, a pull tab, a horse hook, a spring sheet and a cap, wherein the slider body comprises an upper wing plate and a lower wing plate, wherein the upper wing plate and the lower wing plate are connected at the front end by a connecting column, wherein a front mounting column and a rear mounting column are arranged on the top surface of the upper wing plate, wherein a pivot groove is arranged on the inner side of the front mounting column, wherein a horse hook mounting hole is arranged on the inner side of the rear mounting column, wherein two ends of the horse hook are respectively correspondingly mounted on the pivot groove and the horse hook mounting hole, wherein an accommodating cavity for accommodating a pull tab rod is formed between the horse hook and the upper wing plate, wherein a limiting convex column is respectively arranged on the top surface of the front mounting column and the top surface of the rear mounting column, wherein the limiting convex column is characterized in that: Each limiting boss is provided with a limiting notch groove on the inner side of the horse hook, and an opening groove is provided at both ends of the spring sheet, and each opening groove is correspondingly clamped in the limiting notch groove, so that the spring sheet is limited between the two limiting bosses on the horizontal plane and the vertical plane; the lower surface of the spring sheet is supported on the top of the horse hook, and the cap is assembled on the front mounting column and the rear mounting column.

2. An improved zipper automatic head as claimed in claim 1, characterized in that: The limiting notch groove is arranged at the lower middle part of the inner side of the limiting boss facing the horse hook.

3. An improved zipper automatic head as claimed in claim 1, characterized in that: The limiting boss is square, the limiting notch groove is a rectangular groove, the opening groove is a U-shaped groove, and the opening width of the opening groove is slightly larger than the width of the limiting boss in the corresponding direction.

4. An improved zipper automatic head as claimed in claim 1, characterized in that: The limiting boss is cylindrical, the limiting notch groove is an arc groove no larger than a semicircle, the opening groove is a semicircle with a diameter slightly larger than the diameter of the limiting boss, or a U-shaped groove with an opening width slightly larger than the diameter of the limiting boss.

5. An improved zipper automatic head as claimed in claim 4, characterized in that: When the opening groove is a U-shaped groove, two bottom corners inside the U-shaped groove are both provided with arc chamfers.

6. An improved zipper automatic head as claimed in claim 1, characterized in that: The horse hook includes a pivot end, a brake end and an arched portion connecting the pivot end and the brake end, the pivot end is installed in the pivot groove, the brake end is inserted into the horse hook installation hole, and the arched portion and the top surface of the upper wing plate form the accommodating cavity.

7. An improved zipper automatic head, comprising a slider body, a pull tab, a horse hook, a spring piece and a cap, the slider body comprising an upper wing plate and a lower wing plate, the upper wing plate and the lower wing plate are connected at the front end by a connecting column, a front mounting column and a rear mounting column are provided on the top surface of the upper wing plate, a pivot groove is provided on the inner side of the front mounting column, a horse hook mounting hole is provided on the inner side of the rear mounting column, two ends of the horse hook are respectively correspondingly mounted on the pivot groove and the horse hook mounting hole, a receiving cavity for accommodating a pull tab rod is formed between the horse hook and the upper wing plate, a limiting convex column is provided on the top surface of the front mounting column and the top surface of the rear mounting column, characterized in that: A limiting notch groove is provided on the left and right sides of each limiting boss respectively, an opening groove is provided at both ends of the spring sheet respectively, and a clamping strip is provided on both sides of each opening groove respectively, and each clamping strip is correspondingly clamped in the limiting notch groove, so that the spring sheet is limited between the two limiting bosses on both the horizontal and vertical planes; the lower surface of the spring sheet is supported on the top of the horse hook, and the cap is assembled on the front mounting column and the rear mounting column.

8. An improved zipper automatic head as claimed in claim 7, characterized in that: The limiting protrusion is square, the limiting notch groove is straight; the opening groove is a U-shaped groove, and the clamping strip is long.

9. An improved zipper automatic head as claimed in claim 7, characterized in that: The limiting protrusion is cylindrical, the limiting notch groove is straight; the opening groove is an arc groove, and the clamping strip is long strip.

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