CN207836922U - Zipper sprocket - Google Patents

Abstract

The utility model provides a kind of zipper sprocket, one end of the zipper sprocket is engaging section, the other end is the curved surface tooth body portion being correspondingly connected with the engaging section, the neck of a narrow diameter is formed between the engaging section and the curved surface tooth body portion, a left side for the neck and the curved surface tooth body portion junction, right both sides have the shoulder of block-like protrusions, and the outer top edge of the engaging section has an indent and what can be meshed with the shoulder nibble slot, the curved surface tooth body portion has a notch towards tail end again, and can be fixed and straddle clip slot in the core of zipper cloth belt inside edge and the edge, so that the curved surface tooth body portion and the mutually fixed positioning of zipper cloth belt.Accordingly, by the design in curved surface tooth body portion, allow using slide fastener made of the utility model zipper sprocket, can it is flexible and be closed when it is more smooth.

Description

Zipper sprocket

Technical field

The utility model is related to the technical field of slide fastener, espespecially a kind of zipper sprocket applied on slide fastener.

Background technology

Existing zipper sprocket, structure are to be engaged in the occlusion portion in zipper cloth belt front and the back side by one, one protrude from The chain conjunction portion of zipper cloth belt inner edge and the neck that is connected between occlusion portion and chain conjunction portion are formed, however such slide fastener chain Tooth, since the upper and lower two side in its tooth body portion is all tabular, after slide fastener is made with such sprocket, sprocket itself Volume is larger, and the spacing between tooth and tooth is smaller, and being can be harder not flexible with the slide fastener after being made, and because of both sides when closure Wall is flat relationship, be easy with sliding wedge inner wall phase mutual friction, lead to closure the problem of having some setbacks.

In view of this, how to solve the problem above-mentioned, sprocket volume can be reduced by developing one kind so that manufactured slide fastener It is flexible, and zipper sprocket more smooth when closure, become the idea and research topic for the utility model creator.

Utility model content

The utility model aim is that sprocket volume can be reduced by providing one kind so that manufactured slide fastener is flexible, and is closed When more smooth zipper sprocket.

In order to solve the above problem and reach the purpose of this utility model, the technical solution of the utility model is realized in 's：

One end of a kind of zipper sprocket, the zipper sprocket is engaging section, and the other end is correspondingly connected with the engaging section Curved surface tooth body portion, be formed with the neck of a narrow diameter between the engaging section and the curved surface tooth body portion, the neck with it is described The arranged on left and right sides of curved surface tooth body portion junction has the shoulder of block-like protrusions, and the outer top edge of the engaging section has in one It is recessed and what can be meshed with the shoulder nibbles slot, but the curved surface tooth body portion have a notch towards tail end and can it is fixed and across Ride over the clip slot of the core of zipper cloth belt inside edge and the edge so that the curved surface tooth body portion and zipper cloth belt are mutually solid Positioning.

It is further preferred that the curved surface tooth body portion is using the center line of the clip slot as boundary, it is thereon upper clamping part, Under be with the upper clamping part be in mirror symmetry setting lower clamping part.

It is further preferred that the upper and lower clamping part, surface are all an arcwall face, the arcwall face includes one and institute It states the first connecting pin of neck connection and one straddles second connection end in the zipper cloth belt inside edge, and the first connection It holds width W to be less than second connection end width W, the wider form of the relatively narrow other end in one end is presented.

According to above-mentioned technical proposal, effect and function that the utility model can be realized are：The utility model passes through curved surface tooth The design in body portion allows using slide fastener made of the utility model zipper sprocket, can it is flexible and be closed when it is more smooth.

Description of the drawings

Fig. 1 is the stereoscopic schematic diagram of the utility model.

Fig. 2 is the stereoscopic schematic diagram of another angle of the utility model.

Fig. 3 is the schematic top plan view of the utility model.

Fig. 4 is the application state schematic diagram of the utility model.

Reference sign：

1 zipper sprocket, 1,241 first connecting pin

11 engaging section, 1242 second connection end

111 nibble 13 neck of slot

12 curved surface tooth body portion, 14 shoulder

121 clip slot, 10 zipper cloth belt

20 core of clamping part on 122

123 times the first connecting pins clamping part W1 width

124 arcwall face W2 second connection end width

Specific implementation mode

It is described in detail based on the following embodiment shown in drawing：

It as shown in Fig. 1,2,4, is disclosed in schema, is a kind of zipper sprocket, one end of the zipper sprocket 1 is engaging section 11, the other end is the curved surface tooth body portion 12 being correspondingly connected with the engaging section 11, the engaging section 11 and the curved surface tooth body portion The neck 13 of a narrow diameter is formed between 12, the neck 13 and the arranged on left and right sides of 12 junction of curved surface tooth body portion have The shoulder 14 of block-like protrusions, and the outer top edge of the engaging section 11 has an indent and can be nibbled with what the shoulder 14 was meshed Slot 111, but the curved surface tooth body portion 12 has a notch towards tail end and energy fixation and straddles in 10 inside edge of zipper cloth belt And the clip slot 121 of the core 20 at the edge so that the curved surface tooth body portion 12 and the mutually fixed positioning of zipper cloth belt 10.

Wherein, by the design in the curved surface tooth body portion 12, cunning of the zipper sprocket 1 in closing course can be promoted Degree, reduces the body of curved surface tooth described in closing course portion 12 and does not disclose the phase mutual friction between inner wall in sliding wedge figure, makes described 1 entire closing course of zipper sprocket is more smooth.

As shown in figure 3, the curved surface tooth body portion 12 is using the center line of the clip slot 121 as boundary, it is thereon upper clamping Portion 122, under be with the upper clamping part 122 be in mirror symmetry setting lower clamping part 123, the upper and lower clamping part 122, 123 surface is all an arcwall face 124, and the arcwall face 124 includes first connecting pin being connect with the neck 13 1241 and one second connection end 1242 in 10 inside edge of the zipper cloth belt is straddled, and the first connecting pin width W1 is less than The wider form of the relatively narrow other end in one end is presented in second connection end width W2.Thus, which the upper and lower clamping part can be made 122, the form that is recessed inwardly is presented in 123 arranged on left and right sides wall, to reduce the volume of the zipper sprocket 1, increase tooth and tooth it Between space, can be flexible using slide fastener made of the zipper sprocket 1 to allow.

Secondly as the first connecting pin width W1 is less than the design of second connection end width W2, make the upper and lower folder Form to rounded corner is presented in the arranged on left and right sides for holding portion 122,123, and the zipper sprocket 1 can be enabled to have the effect of being easy demoulding, And in demoulding, the situation that abrasion disintegration is not had at the rounded corner occurs.

The structure, feature and effect of the utility model are described in detail according to embodiment shown in drawing above, with Upper described is only the preferred embodiment of the utility model, but the utility model is to limit practical range shown in drawing, it is every according to Change made by conception according to the utility model, or be revised as the equivalent embodiment of equivalent variations, still without departing from specification and figure When showing covered spirit, it should be within the protection scope of the present utility model.

Claims (3)

1. a kind of zipper sprocket, which is characterized in that one end of the zipper sprocket (1) is engaging section (11), and the other end is and institute State the curved surface tooth body portion (12) that engaging section (11) is correspondingly connected with, shape between the engaging section (11) and the curved surface tooth body portion (12) The neck (13) of the narrow diameters of Cheng Youyi, the neck (13) and the arranged on left and right sides of curved surface tooth body portion (12) junction have block The shoulder (14) of shape protrusion, and the outer top edge of the engaging section (11) has an indent and can be meshed with the shoulder (14) Nibble slot (111), and the curved surface tooth body portion (12) has a notch towards tail end and can be fixed and straddles in zipper cloth belt (10) clip slot (121) of the core (20) of inside edge and the edge so that the curved surface tooth body portion (12) and zipper cloth belt (10) mutually fixed positioning.

2. zipper sprocket according to claim 1, which is characterized in that the curved surface tooth body portion (12) is with the clip slot (121) center line is thereon upper clamping part (122) as boundary, under be to be set in mirror symmetry with the upper clamping part (122) The lower clamping part (123) set.

3. zipper sprocket according to claim 2, which is characterized in that the surface of the upper and lower clamping part (122,123) is all For an arcwall face (124), the arcwall face (124) include one connect with the neck (13) the first connecting pin (1241), And one straddle second connection end (1242) in the zipper cloth belt (10) inside edge, and the first connecting pin width (W1) is less than The wider form of the relatively narrow other end in one end is presented in second connection end width (W2).