TWI508679B - Double zipper zipper head - Google Patents

Description

Double-layer toothed zipper head

The invention relates to a zipper head of a double-layer tooth zipper, which relates to a lower guard plate shortening a tooth thickness distance to improve the sliding resistance at the corner of the zipper head, and the right side of the base core retains an appropriate width and thickness and is designed with a concave arc. Connecting the aforementioned under-contracted guard plate, the function has the tensile strength of the support and the reinforcing lower guard plate, and the left and right concave arcs can serve as the limit opening angle of the guide double-layer tooth chain, so that the joint teeth are pulled at the corner Maintain the same smoothness as the straight line, and the side plates on both sides of the upper guard plate are slightly extended and extended toward the base end to facilitate the length increase of the upper chain in the cavity of the zipper head during twisting to avoid the teeth. Or the blasting tooth, the upper and lower recessed grooves on both sides of the base can be used as a single-side sprocket to reduce friction, and serve as a positioning of the bent sprocket and a positioning action.

According to the same patent case of the same inventor Taiwan No. M432302, although the tongue-shaped guide piece is attached as the precise tooth-toothing and opening-off function of the double-layer tooth zipper opening and closing and sliding, it still needs further improvement to be more perfect.

In view of this, the present inventors have invented and designed a double-layered zippered zipper head through continuous research and improvement.

The main object of the present invention is to provide a zipper head of a double-layer tooth zipper, wherein the lower guard plate shortens the distance of one tooth thickness as a type space in which the time of the joint is eliminated at the turning point, eliminating the uncoordinated teeth and improving The sliding resistance of the zipper head corner.

A second object of the present invention is to provide a double-sided toothed zipper head, the lower guard plate retaining a proper width and thickness corresponding to both sides of the base, and is designed to be connected to the under-contracted guard by a concave arc. Its effect can be achieved not only by retention The appropriate twist and thickness on both sides of the heart serve as the supporting action of the extension beam arm, and the tensile strength of the lower guard plate is strengthened, and the left and right concave arc clamping distance can be used as the limit position of the guiding double-layer tooth chain in the bending and sliding. The angle is opened, and the control does not affect the friction or the outer side of the tongue-shaped balance guide, which leads to the failure of the front guide of the tongue-shaped balance guide. The relative tooth pull-slip is maintained as smooth as the straight line at the corner.

A further object of the present invention is to provide a zipper head of a double-layer tooth zipper, which is not forced by the front and rear end zipper parts in the zipper processing of the hard-shell suitcase, and can still borrow a double concave arc distance when the force is straightened. As the left and right side zipper tape opening angle has a stable value, and achieves a smooth sliding tooth.

Another object of the present invention is to provide a zipper head of a double-layer tooth zipper, wherein the side plates on both sides of the upper guard plate are slightly extended and lengthened toward the top of the base, so that the upper chain is in the cavity of the zipper head when twisted. The length of the tunnel is increased, so that the fulcrum of the side edge of the side plate corresponding to the upper guard plate is moved outward, and the pitch of the fulcrum is widened at the fulcrum position, and then the correction is restored to obtain a correction function to avoid the tooth or the tooth.

Another object of the present invention is to provide a zipper head with a double-layered tooth zipper, wherein the upper and lower concave grooves on both sides of the base can reduce friction as a single-side sprocket, and serve as a positioning of the bent sprocket and as a top-stop positioning.

The zipper head of a double-layer tooth zipper, after the development of the new patent No. M432302 in Taiwan, has the function of tongue guiding, and there is still improvement, so the inventor continues to create and improve, in order to improve the double tooth When the zipper is used in the processing of the turning, the outer tooth will be outwardly stretched at the corner of the tooth and the tooth gap, and the distance between the inner teeth is contracted and squeezed, so that the upper and lower layers are pulled by the same cavity zipper. When the upper and lower layers are combined, the time shape space is uncoordinated and hinders the sliding. Therefore, the distance between the lower guard plate and the thickness of the tooth in the base center is reduced as the time point at which the joint is eliminated at the turning point. The space eliminates the uncoordinated teeth, but at the same time, the cross-sectional area of the lower guard plate corresponding to the base is reduced by about half, so that the tensile strength of the lower guard is weakened, and in this case, the lower guard corresponds to the base. The two sides are respectively reserved with appropriate width and thickness and each has a concave arc design to be connected to the under-contracted guard. The effect can be extended not only by retaining the appropriate width and thickness on both sides of the base. Supporting the beam arm and reinforcing the tensile strength of the lower guard plate, and the left and right concave arc clamping distance can be used as the guiding opening angle of the double-layer toothed chain when bending and pulling, and the control does not affect the balance with the tongue shape. The guide piece is rubbed or biased, which leads to the failure of the front section of the tongue-shaped balance guide, so that the sliding of the joint teeth is maintained as smooth as the straight line at the corner, especially in the zipper processing of the hard-shell suitcase, which is not caused by the front and rear end zipper parts. Forcing, when the force is straightened, the double concave arc distance can be used as the left and right side of the zipper belt. The opening angle has a stable value and achieves a smooth sliding tooth. In addition, in order to prevent the zipper from being twisted, the left and right tooth spacings are also It is changed by the external force and changed to one side, the tooth pitch is flat, and the other side of the tooth is open and the tooth is bad; so that the loss of the tooth or the tooth is caused, the side plate of the gap between the two sides of the upper guard plate is slightly extended and lengthened toward the top of the base. In order to facilitate the twisting of the upper chain, the length of the tunnel of the upper chain in the cavity of the zipper head is increased. Since the side plate of the upper guard plate is extended when the zipper head is twisted, the fulcrum is moved forward, and the sprocket opening angle of the fulcrum is the largest. , fulcrum forward, etc. The tooth pitch of the joint tooth is effectively restored, and the correction effect is obtained to avoid the tooth or the tooth. In addition, the upper and lower guard plates respectively have concave grooves corresponding to the upper and lower sides of the base, which can be used as a single-side chain tooth to reduce friction and serve as a bending chain. Tooth positioning and top positioning.

〔this invention〕

(1)‧‧‧ zipper head

(11)‧‧‧Upper guard

(12) ‧‧‧ lower guard

(121) ‧‧‧Side parts

(13) ‧‧‧ base

(131)‧‧‧ Tongue balance guide

(14) (15) ‧‧‧ side panels

(141) (151) ‧‧‧ cavity

(A) ‧ ‧ concave arc

(B) ‧ ‧ distance

(C) ‧ ‧ extended extensions

(D) ‧‧‧ concave arc gap

(E) ‧‧‧ depressed trough

1 is a perspective view of an embodiment of the present invention.

Figure 2 is a side elevational view of an embodiment of the present invention.

Figure 3 is a partial plan cross-sectional view showing the upper guard portion of the embodiment of the present invention.

Fig. 4 is a partial perspective sectional view showing the upper guard portion of the embodiment of the present invention.

Figure 5 is a schematic plan cross-sectional view showing the lower guard portion of the present invention.

Figure 6 is another perspective perspective view of an embodiment of the present invention.

Fig. 7 is a plan view showing the state of use of the bending according to the embodiment of the present invention.

As shown in FIG. 1 to FIG. 6, the zipper head of the double-layer toothed zipper includes an upper guard plate 11, a lower guard plate 12, and a base connecting the upper guard plate 11 and the lower guard plate 12. a center 13 is disposed in the middle of the base 13 and is provided with a tongue-shaped balance guide 131. The two side ends of the upper guard 11 each have a side plate 14 and two sides of the lower guard 12 The ends also have side plates 15, and two cavity holes 141, 151 are formed between the upper and lower guard plates 11, 12 and the base 13 (refer to FIGS. 3 to 5); and the innovation of the present invention is: the zipper head 1 The lower guard 12 is respectively defined by the bottom of the base 13 as a reference position by a distance B of a thickness of a tooth (refer to FIG. 3), which is used as a type space for eliminating the time of the joint at the turn. Eliminating the misalignment of the teeth, it is easy to say that the foregoing features are advantageous for the sliding at the corner to reduce the drag; but at the same time, it is considered that the cross-sectional area of the lower guard 12 corresponding to the base 13 is reduced by about half or less, so that the lower guard 12 is resistant to tension. The strength is weakened, and in this case, the lower guard 12 is respectively retained corresponding to the two sides 121 of the base 13 (refer to FIG. 3) to have appropriate width and thickness, and each has a concave arc A (see also FIG. 3). The design is to be connected to the under-contracted shield 12, and the effect thereof can not only support the extension beam arm by retaining the appropriate width and thickness of the two sides 121 of the base 13 but also strengthen the lower shield 12 Tensile strength, and the left and right concave arc clamp distance D (refer to Figure 5) can be used as a guide double-layer tooth chain in the bending pull The limit position of the sliding position is opened, and the control does not affect the friction or the outer side of the tongue-shaped balance guide 131, which leads to the failure of the front guide of the tongue-shaped balance guide 131, so that the sliding of the joint teeth is maintained as smooth as the straight line at the corner. Especially in the zipper processing of the hard-shell suitcase, it will not be forced by the front and rear end zipper parts. When the force is straightened, the double concave arc distance can be used as the left and right side zipper belt opening angle has a stable value, and the smoothing is achieved. Tooth action.

Furthermore, in order to prevent the zipper from being twisted, the left and right sprocket pitches are also changed by external force traction, and the present invention is formed by the fact that the tooth pitch is flat on one side and the tooth pitch on the other side is uncomfortable, so that the tooth or the tooth is lost. The side plates on both sides of the upper guard plate 11 are slightly extended and lengthened toward the top end of the base 13 (refer to the side plates indicated in FIG. 2 and FIG. 5 to extend the extended portion C toward the top of the base) to facilitate the upper chain when twisting and pulling. The tunnel length of the cavity 141 of the zipper head 1 is increased. When the zipper head 1 is twisted, the side panel 14 of the upper guard 11 is extended, that is, the fulcrum is advanced, and the sprocket opening angle of the fulcrum is the largest, and the fulcrum is moved forward. The tooth pitch of the tooth is effectively restored, and a correction is obtained to avoid the tooth or the tooth.

In addition, the upper and lower guard plates 11 and 12 respectively have recessed grooves E on both sides of the base 13 and can be used as a single-side sprocket to reduce friction (see FIG. 7) and serve as a bend. The chain element positioning of the chain 2 and the positioning function of the upper end.

In summary, the present invention can be summarized as having the following enhancement effects:

1. The lower guard plate 12 shortens the distance B of a layer of tooth thickness as a type space in which the time of the joint is eliminated at the turning point, eliminating the uncoordinated teeth, and relatively improving the sliding resistance of the zipper head 1 corner.

2. The lower guard 12 has a proper width and thickness corresponding to both sides of the base 13 and is designed to be connected to the under-contracted shield 12 by the design of the concave arc A. The effect can be achieved not only by retaining the base 13 The appropriate width and thickness of the side are used to support the extension beam arm, and the tensile strength of the lower guard plate is strengthened, and the left and right concave arc clamping distance D can be used as a guiding double-layered tooth chain to open at the limit of bending and sliding. Angle, and the control does not affect the rubbing or biasing of the tongue-shaped balance guide 131, resulting in the failure of the front-end guide of the tongue-shaped balance guide 131, so that the tooth-slip is maintained as smooth as the straight line at the corner.

3. Especially in the zipper processing of the hard-shell suitcase, it will not be forced by the front and rear end zipper parts. When the force is straightened, the double concave arc distance can be used as the left and right side zipper belts. The opening angle has a stable value and smoothness. Tooth action.

4. The side plates on both sides of the upper guard plate 11 are slightly extended and lengthened toward the top end of the base 13 to facilitate the increase of the tunnel length of the upper chain in the cavity 141 of the zipper head 1 when twisted, due to the twist of the zipper head 1 The extension of the side plate 14 of the upper guard 11 is forwardly moved against the fulcrum, and the sprocket opening angle of the fulcrum is the largest, and the fulcrum forward is equivalent to the effective recovery of the tooth pitch, and a correction is obtained to avoid the tooth or the blast.

5. The upper and lower guard plates 11 and 12 respectively have recessed grooves E on both sides of the base 13 and can be used as a single-side sprocket to reduce friction (see FIG. 7) and as a locating and positioning of the bent chain 2 Top stop positioning.

In summary, the present invention is indeed of its industrial use value. It is an application for a patent for invention, and it is requested that the review board of the bureau inspects and grants a patent to the applicant.

However, the above-mentioned embodiments are only the preferred embodiments of the present invention, and the equivalent variations and modifications made by the scope of the present invention should still be the patents covered by the present invention. Within the scope.

(1)‧‧‧ zipper head

(11)‧‧‧Upper guard

(12) ‧‧‧ lower guard

(121) ‧‧‧Side parts

(13) ‧‧‧ base

(131)‧‧‧ Tongue balance guide

(14) (15) ‧‧‧ side panels

(151)‧‧‧ cavity

(A) ‧ ‧ concave arc

(E) ‧‧‧ depressed trough

Claims (1)

A zipper head of a double-layer toothed zipper, the zipper head comprising an upper guard plate, a lower guard plate and a base core connecting the upper guard plate and the lower guard plate, wherein the base core is provided with a tongue-type balance guide piece, The two side ends of the upper guard plate each have a side plate, and the two side ends of the lower guard plate also have a side plate, and two holes are formed between the upper and lower guard plates and the base core; and the zipper head is The lower guard plate is internally contracted by the bottom of the base center as the reference position, and is respectively reduced by the distance of the thickness of one layer of teeth, which is used as a type space for eliminating the time points of the teeth at the turning point, eliminating the uncoordinated teeth and facilitating the corners. Pulling and sliding reduces the resistance, and the lower guard plate has an appropriate width and thickness corresponding to the two sides of the base, respectively, and each has a concave arc to be connected to the under-contracted guard, and thereby by the retaining base two The appropriate width and thickness of the side parts are used to support the extension beam arm, and the tensile strength of the lower guard plate is strengthened, and the left and right concave arc clamping distance can be used as the limit opening angle of the guiding double-layer tooth chain, and the control does not affect Rubbing or out of the tongue with the tongue-shaped balance guide The front guide of the balance guide is ineffective, so that the slip of the joint is smooth at the corner, and the side plates on both sides of the upper guard have an extended length toward the top of the base to facilitate the upper chain at the zipper when twisted. The length of the tunnel of the cavity increases. Because the side plate of the upper guard plate is extended when the zipper head is twisted, that is, the fulcrum is moved forward, the angle of the sprocket opening of the fulcrum is the largest, and the fulcrum is moved forward to recover the tooth pitch. The correction function is obtained to avoid the teeth or the blasting teeth, and wherein the upper and lower guard plates respectively have concave grooves corresponding to the upper and lower sides of the base core, which can be used as a single-side sprocket to reduce friction and serve as a sprocket positioning of the bent chain and Top stop positioning.