WO2012099280A1 - Insert ratchet belt and manufacturing method thereof - Google Patents

Abstract

The present invention pertains to an insert ratchet belt and a manufacturing method thereof. More specifically, in an insert belt for sports, a metal member is inserted to the inside of an insert ratchet belt and a portion to be coupled with the buckle of a binder is coupled with the metal member that is made from a metal material so as to prevent the abrasion of the portion of the insert ratchet belt that is coupled with the buckle. In addition, the metal member is extended and inserted to the inside of a coupling portion of the insert ratchet belt so as to prevent damage to the engagement portion and the coupling portion of the insert ratchet belt. Furthermore, according to the method for manufacturing the insert ratchet belt, the coupling portion of the metal member is formed with a circular hole such that the metal member may be fixed to an injection mold to avoid movement. Therefore, deformation is prevented at the metal member in spite of the supply of injection molding materials at high pressure, thereby reducing the rate of defects.

Description

Insert Ratchet Belt and Manufacturing Method Thereof

The present invention relates to an insert ratchet belt and a method of manufacturing the same. More specifically, a metal member is inserted into the insert ratchet belt, and a portion coupled to the buckle of the binder is coupled to the metal member made of a metallic material, thereby joining the buckle. The present invention relates to a sports insert belt which prevents wear of the insert ratchet belt portion and prevents breakage of the fastening portion and the engaging portion of the insert ratchet belt by inserting a metal member into the insert portion of the insert ratchet belt. . In addition, in manufacturing the insert belt for sports, a circular hole is also installed in the joining portion of the metal member, which can be fixed to prevent movement in the mold for injection, so that deformation of the metal member does not occur even by supplying a high-pressure injection product. It relates to a method of manufacturing an insert ratchet belt to reduce the failure rate.

Insert ratchet belts are generally combined with the teeth of the insert ratchet belt to the engaging portion of the buckle. By adjusting the length by a plurality of teeth formed in the fastening portion of the insert ratchet belt is designed so that the tightening strength can be changed according to the user's convenience. Eventually, the fastening portion of the insert ratchet belt, which is in contact with the locking projection of the buckle, is made of polyurethane, and wear occurs.

In order to reduce such wear, application No. 10-2004-0015691 filed by the present applicant on March 09, 2004 (hereinafter referred to as "prior art") inserts a metal member having teeth formed in the insert ratchet belt. do. The fastening part of the insert ratchet belt, which is in contact with the locking projection of the buckle, is combined with a metal member made of metal, not polyurethane, to reduce wear.

1 is a perspective view of a conventional insert ratchet belt.

Figure 2 is a perspective view of a metal member inserted into the insert ratchet belt of the prior art.

As shown in Figure 1, the conventional insert ratchet belt 100 is provided with an insertion portion 10, the sawtooth shape is inserted into the buckle of the binder, the fastening portion 20 is fastened to the engaging projection of the buckle of the binder And a coupling part 30 having a coupling hole 31 to be fixedly coupled with the binder.

The metal member 40 having the shape shown in FIG. 2 is inserted into the fastening part 20, so that the insert ratchet belt may be prevented from being worn or broken even when the insert ratchet belt is inserted into the buckle and fixed thereto. .

The saw-toothed shape 21 formed in the fastening part 20 is comprised from the inclined surface 21a, the vertical surface 21b, and the peak 21c by which the inclined surface 21a and the vertical surface 21b abut.

However, the conventional insert ratchet belt 100 does not extend to the coupling part 30 to which the metal member 40 inserted therein is coupled to the binder, and thus the metal member 40 is not built into the coupling part 30. Only the fastening portion 20 to be fastened with the buckle is inserted therein.

The coupling strength between the fastening part 20 and the fastening part 30 of the insert ratchet belt is characterized by the characteristics of the device that must withstand the strong tension formed by the fastening part and the part connected by the fastening part. The belt becomes weak due to long use of the belt and is broken due to deformation and breakage of the polyurethane material due to temperature change.

In addition, in the production of insert ratchet belts according to the prior art, in order to insert the metal member 40 therein, the metal member is placed on the polyurethane injection molding on the lower plate of the mold and the upper plate of the mold is closed to strongly bond with the lower plate. By inserting the injection molding material at a high pressure into the injection hole of the metal member to be inserted into the insert belt.

However, the insert belt produced by this method is exposed to the teeth of the fastener, but the metal member is exposed to be combined with the ratchet buckle, it is surrounded by the polyurethane injection or the metal member is not coupled correctly .

Such a bad insert ratchet belt is caused by the injection of the polyurethane material on the metal plate and the lower plate of the mold that is not strongly coupled by inserting the injection at a high pressure in the production process.

Particularly, incomplete fixing of the metal member is required in the situation where the injection of the injection by the higher pressure is required in order to penetrate a plurality of perforation holes formed in the metal member so that the lower and upper injection moldings of the insert ratchet belt are combined. The failure rate of the insert ratchet belt with the member is increased.

As the defective rate of the insert ratchet belt having a metal member therein increases, it becomes impossible to reuse it due to the delay of the production process and the deformation of the metal member, resulting in problems such as waste of raw materials.

Accordingly, an object of the present invention is to solve such a conventional problem, and includes a metal member that extends to the coupling portion of the insert ratchet belt and is mounted therein, and is provided with a circular hole in the metal ratchet insert belt. It is to provide an insert ratchet belt and a method for manufacturing the same that can be fixed in the mold during the production of.

Constituent means for forming the insert ratchet belt of the present invention proposed to achieve the above object, is fastened to the buckle of the binder with a locking projection, the tooth is formed, one side of the tooth has an inclined surface and the other side has a vertical surface In the insert ratchet belt which is provided with the tooth is fixed to the buckle, the insertion portion is inserted into the buckle, the insertion is provided with the tooth is fastened to the engaging portion of the buckle, the fastening portion is coupled to the binder to be fixed A coupling part having a coupling hole, the coupling part is included in the coupling part and the coupling part, and includes a metal member having a concave-convex shape corresponding to the tooth shape of the coupling part and a circular hole corresponding to the coupling hole of the coupling part. It is characterized by.

In addition, the support member for supporting the metal member inside the fastening portion is characterized in that it is further included.

Here, the metal member is characterized in that the inner surface of the fastening portion is formed so that the vertical surface and the peak portion of the uneven shape.

Here, the metal member is formed a plurality of holes, the hole is characterized in that the upper and lower surfaces of the metal member is in communication with each other so that the metal member is firmly coupled in the insert ratchet belt.

On the other hand, the structural means constituting the insert ratchet belt manufacturing method proposed by the present invention in order to achieve the above problems, is fastened to the buckle of the binder with a locking projection, the teeth are formed, one side of the teeth has an inclined surface In the method of manufacturing an insert ratchet belt having the other side is provided with a vertical surface and the teeth are engaged with the buckle, the fixing table is formed in the lower plate of the mold having a sawtooth circular hole provided in the metal member having the uneven shape Fixing the metal member to the bottom plate of the mold, mounting the support member on the top surface of the metal member, coupling the top plate of the mold with the bottom plate of the mold, and molding the resin into the injection molding hole of the mold. Characterized in that it comprises a step.

According to the present invention, both the fastening portion and the coupling portion of the insert ratchet belt are provided with a metal member to withstand the tension caused by the tightening of the insert ratchet belt, and prevent the breakage at the extreme temperature to extend the life of the belt , The ratchet belt to fix the circular hole provided in the metal member in the mold during the production of the insert ratchet belt to maintain the position in the metal member even under the strong pressure generated during the production of the insert ratchet belt And a method of manufacturing the same.

1 is a perspective view of a conventional insert ratchet belt.

Figure 2 is a perspective view of a metal member inserted into the insert ratchet belt of the prior art.

Figure 3 is a perspective view of the insert ratchet belt of the present invention.

Figure 4 is a view of fastening the insert ratchet belt of the present invention to the buckle.

5 is a perspective view of a metal member inserted into the insert ratchet belt of the present invention.

6 is a view illustrating an insert ratchet belt coupled to a snowboard binder.

Figure 7 is a schematic diagram of injection molding the insert ratchet belt of the present invention.

8 is a flow chart for manufacturing the insert ratchet belt of the present invention.

Prior to the description, in the various embodiments, components having the same configuration will be representatively described in the first embodiment using the same reference numerals, and in other embodiments, different configurations from the first embodiment will be described. do.

Hereinafter, an insert ratchet belt according to a first embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a perspective view of the insert ratchet belt of the present invention, Figure 4 is a view fastening the insert ratchet belt of the present invention to the buckle of the binder. 5 is a perspective view of a metal member inserted into the insert ratchet belt of the present invention.

3 and 4, the insert ratchet belt 100 of the present invention is fastened to the buckle 50 of the binder with the engaging protrusion 51, and the tooth shape 21 is provided, and the saw tooth shape ( In the insert ratchet belt, one side of which has an inclined surface 21a and the other side has a vertical surface 21b, in which the sawtooth is engaged with the buckle, is inserted into the buckle 50 of the binder. 10, the saw-toothed shape 21 is provided with a fastening portion 20 to be engaged with the engaging projection 51 of the buckle 50, a coupling portion 30 having a coupling hole to be coupled and fixed to the binder, It is included in the fastening portion 20 and the coupling portion 30, the concave-convex shape 47 corresponding to the sawtooth 21 of the fastening portion 20 and the coupling hole 31 of the coupling portion 30 It comprises a metal member 40 having a circular hole 41 corresponding to).

On the other hand, a support member (denoted by reference numeral 70 in FIG. 7) for supporting the metal member 40 in the fastening 20 part may be further included. The support member 70 supports the metal member 40 in the process of manufacturing the insert ratchet belt to prevent the movement of the metal member, so that the insert ratchet belt of good quality can be manufactured, and the insert ratchet belt after manufacture To increase the stiffness.

The insertion portion 10 is made of a polyurethane material and has a semicircular shape to facilitate insertion into the buckle.

The fastening part 20 is made of a polyurethane material and refers to a part in which the tooth shape 21 is formed after the insertion part 10, and the teeth formed on the fastening part 20 are locking protrusions of the buckle 50. It is a part to which durability is calculated | required as a part fastened with 51.

The metal member 40 is inserted into the fastening part 20, and the uneven shape 45 part of the metal member 40 is exposed to the upper part of the toothed part 21 of the fastening part 20. A portion of the buckle 50 abutting with the engaging protrusion 51 corresponds to a portion of the concave-convex shape 45 of the metal member 40 inside the fastening portion 20.

The fastening part 20 is about 2 mm in the thinnest part of the saw-toothed off part, and the thickest part is about 6 mm in the peak 21c which is the raised part of the tooth-shaped part 21. The peak 21c is a portion where the inclined surface 21a constituting the sawtooth 21 and the vertical surface 21b abut.

The coupling part 30 is made of polyurethane and is not formed with the tooth shape 21 like the fastening part 20 and is a part which is coupled with the binder. A coupling hole 31 is formed as a portion that is strongly bonded to the binder, and the coupling hole 31 is a circular hole having a diameter of about 10 mm. The metal member 40 is inserted into the coupling part 30, and the metal member 40 is formed with a circular hole 41 having the same diameter as the coupling hole 31. The thickness is about 4mm.

As shown in FIG. 5, the metal member 40 is a metal material, but the length of the metal member 40 is about 11 Cm to 13 Cm although there is a difference depending on the length of the insert ratchet belt. As shown in FIG. 5, the metal member 40 corresponds to the concave-convex shape 47 corresponding to the sawtooth shape 21 of the fastening part 20 and the coupling hole 31 of the coupling part 30. A circular hole 41 is provided.

The angle of the concave-convex shape 45 is formed at an angle greater than that of the inclined surface 21a constituting the sawtooth shape of the fastening part 20, and the height of the concave-convex peaks 47c is the tooth shape of the fastening part 20. It is formed higher than the height of the peak 21c of (20).

As illustrated in FIG. 5, the metal member 40 includes an extension part 43 having an uneven shape part 45 and a circular hole 41. The metal member 40 is formed inside the fastening portion 20 such that the vertical surface 47b and the peak portion 47c of the uneven shape 45 are exposed to the outside.

As shown in FIG. 5, the metal member 40 forms a plurality of holes, and the holes allow the top and bottom surfaces of the metal member to communicate with each other so that the metal member is firmly coupled to the inside of the insert ratchet belt. It should be possible. That is, when the resin is injected into the mold after fixing the metal member 40 inside the mold, the resin is injected between the holes formed so that the top and bottom surfaces of the metal member communicate with each other to form the metal member 40. It can be fixed firmly.

The insert ratchet belt is composed of an insertion part, a fastening part, and a coupling part, and the insert ratchet belt is a polyurethane belt having a length of about 16Cm to 20Cm and a length of about 2.3Cm. A plurality of tooth shapes are provided on the insert ratchet belt, and a metal member is included in each of the insert ratchet belt coupling parts and the coupling part.

6 is a view illustrating an insert ratchet belt coupled to a snowboard binder.

As shown in FIG. 6, the buckle 50 provided in the snowboard binder 60 and the insert ratchet belt 100 connected to and fixed to the binder 60 are inserted and coupled.

 Since the insert ratchet belt includes a metal member, the coupling portion and the connection portion of the coupling portion are prevented from being broken or bent due to the tension acting on the coupling portion and the coupling portion, and the metal member is formed inside the coupling portion. It is provided with a circular hole formed of a material can be more strongly coupled to the binder.

Next, a method of manufacturing the insert ratchet belt according to the second embodiment of the present invention will be described. In the first embodiment, the metal member 40 is inserted into the insert ratchet belt 100 to reduce wear on the toothed portion 21 of the insert ratchet belt, and between the coupling part 30 and the fastening part 20. The operation and mechanism of the insert belt including the metal member 40 to prevent breakage or bending of the structure were described. In the second embodiment, a method of manufacturing the insert ratchet belt manufactured by inserting the metal member 40 is described. see.

Duplicate contents identical to those mentioned in the first embodiment will be omitted.

7 is a schematic view of injection molding an insert ratchet belt. 8 is a flowchart of manufacturing an insert ratchet belt.

First, the mold used to manufacture the insert ratchet belt 100 according to the present invention will be briefly described. The mold is composed of a mold lower plate 80 and a mold upper plate 90, and the mold lower plate 80. ) And an injection molding inlet formed by coupling the upper plate 90. In particular, the mold lower plate 80 is provided with a fixing base 85 into which the circular hole 41 of the metal member 40 can be inserted. In addition, the mold lower plate is provided with a sawtooth mold.

7 and 8 are fastened to the buckle of the binder with the engaging projection 85, the tooth is formed, one side of the tooth has an inclined surface and the other side has a vertical surface to engage the tooth with the buckle. Referring to the method of manufacturing the insert ratchet belt is fixed as follows.

First, the circular hole 41 provided in the metal member 40 having the concave-convex shape is inserted into the fixing base 85 formed on the lower plate 80 of the mold having the sawtooth shape, thereby inserting the metal member into the lower plate of the mold. Fix it. Then, the support member 70 is seated on the upper surface of the metal member 40. The support member 70 prevents the metal member 40 from flowing when the resin is injected into the mold at a high pressure, and increases the rigidity of the insert ratchet belt together with the metal member 40. Do this.

After mounting the support member 70 on the metal member 40, the upper plate 90 of the mold is in close contact with the support member 70, and the upper plate of the mold is coupled with the lower plate of the mold. As such, when the upper mold plate 90 is coupled to the lower plate 80, the upper mold plate 90 presses the support member 70, and the support member 70 firmly fixes the metal member 40. Make it work.

As a result, since the circular hole 41 is fixed to the fixing base 85 of the lower plate 80 of the metal mold 40, the metal member 40 is tightly fixed by the supporting member 70. Even if the resin is injected into the mold, the metal member 40 can be manufactured to produce a good insert ratchet belt by allowing the resin to be injected around the metal member 40 in a stable state without flowing.

After the upper mold plate is bonded to the lower plate as described above, the step of molding the resin is injected into the injection hole of the mold. In this process, the resin is injected between the periphery of the metal member 40 and the holes formed in the metal member. Then, after a certain time, the finished insert ratchet belt can be completed.

After this process, it is possible to further perform the step of cutting the solidified portion of the injection leakage from the mold other than the shape of the insert ratchet belt having a metal member therein.

As the upper plate is combined with the lower plate and the injection is introduced at a high pressure through the injection inlet, the metal member 40 is buried inside the injection. However, part of the toothed portion of the fastening portion, the injection molding does not cover the metal member, so that the peak portion 21c and the vertical surface 21b of the metal member are exposed to the outside.

A more complete insert ratchet belt is produced by smoothly cutting the leaked part of the injection molding in the mold of the insert ratchet belt produced through the above steps.

The scope of the present invention is not limited to the above-described embodiments but may be implemented in various forms of embodiments within the appended claims. Without departing from the gist of the invention claimed in the claims, it is intended that any person skilled in the art to which the present invention pertains falls within the scope of the claims described herein to various extents which can be modified.

The present invention relates to an insert ratchet belt, which is basically applied to a snowboard binder, and furthermore, to all shoes and sports boots having a tightening function.

Claims (5)

In the insert ratchet belt which is fastened to the buckle of the binder with a locking projection, the teeth are formed, one side of the teeth has an inclined surface and the other side has a vertical surface, the teeth are engaged with the buckle to be fixed. Insertion portion to be inserted into the buckle; A fastening part which is provided with the saw teeth and is engaged with the locking protrusion of the buckle; A coupling part having a coupling hole to be coupled to and fixed to the binder; The insert ratchet belt, which is included in the coupling part and the coupling part, comprises a metal member having a concave-convex shape corresponding to the tooth shape of the coupling part and a circular hole corresponding to the coupling hole of the coupling part. . The method according to claim 1, Insert ratchet belt further comprises a support member for supporting the metal member in the fastening portion. The method according to claim 1 or 2, The metal member is an insert ratchet belt, characterized in that formed in the fastening portion to expose the vertical surface and the peak portion of the uneven shape. The method according to claim 3, The metal member forms a plurality of holes, and the hole allows the upper and lower surfaces of the metal member to communicate with each other so that the metal member is firmly coupled in the insert ratchet belt. In the method of manufacturing an insert ratchet belt is fastened to the buckle of the binder with a locking projection, the tooth is formed, one side of the tooth has an inclined surface and the other side has a vertical surface, the tooth is engaged with the buckle. Fixing the metal member to the lower plate of the mold by inserting a circular hole provided in the metal member having the uneven shape into a fixing plate formed on the lower plate of the mold having the tooth shape; Mounting a support member on an upper surface of the metal member; Combining the upper plate of the mold with the lower plate of the mold; Insert ratchet belt manufacturing method comprising the step of molding the resin by injection into the injection molding of the mold.

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