KR200364177Y1 - Extendable buckle for belt - Google Patents

Abstract

The present invention relates to a buckle for elastic waistband, in particular, a buckle that is stretched to maintain a constant tension according to the wearer's posture, compared to the conventional stretching device, the number of its components is reduced, and integrally constructed, the structure is light By reducing the production cost and manufacturing time by fire extinguishment, there is little fear of breakage, minimizing the defective rate according to the production to increase productivity, as well as reducing the weight of the buckle according to the integrated structure, two plate-shaped spiral springs arranged symmetrically The present invention relates to a buckle for an elastic waistband by which the fit of the belt is excellent.

Description

Elastic Belt Buckle {EXTENDABLE BUCKLE FOR BELT}

The present invention relates to a buckle for elastic waistband, in particular, a buckle that is stretched to maintain a constant tension according to the wearer's posture, compared to the conventional stretching device, the number of its components is reduced, and integrally constructed, the structure is light By reducing the production cost and manufacturing time by fire extinguishment, there is little fear of breakage, minimizing the defective rate according to the production to increase productivity, as well as reducing the weight of the buckle according to the integrated structure, two plate-shaped spiral springs arranged symmetrically The present invention relates to a buckle for an elastic waistband by which the fit of the belt is excellent.

In the past, when the wearer's abdomen is swelled or the abdomen is pressed due to a change in the posture of the wearer, the abdominal breathing or overeating, the elastic waistband allows the wearable length to be appropriately stretched with moderate tension. It was developed in various forms.

Suggestions for such a stretchable waistband include Published Utility Model Publication No. 87-7829, Published Utility Model Publication No. 95-13071, and most recently, Registered Utility Model Publication No. 268683. Equipped with a spring or a rubber band inside and consists of braces that can be separated and moved independently by their expansion and construction, thereby having a structure to increase or decrease the length of the waistband. However, such a known elastic waistband has a problem in that elastic members such as springs or rubber bands are not selected and arranged in a form that can be practically used, or elastic members are not smoothly stretched. The problem may arise in the durability. In addition, in the coupling relationship between the latches, the coupling relationship is not strong, so the possibility of departure or breakage is high, or even if it is not, the configuration is complicated, resulting in a large cost in manufacturing, and a user's wearing feeling as the weight increases. There is a problem such as falling.

In addition, as the coupling relationship between the latches is complicated, there is a problem in that the fit and stretch of the both ends of the waistband in the buckle portion are not made smoothly, and thus the fit is poor.

In order to solve the problems of the prior art as described above, an object of the present invention is to reduce the number of components, and through the combination of these to provide a solid buckle for the elastic waistband of a rigid and light and simple structure as a whole having an integral structure. It is done.

In addition, the present invention, while reducing the manufacturing cost and manufacturing time, there is little concern of breakage, and aims to provide an elastic belt buckle that can increase the productivity by minimizing the defective rate according to the production.

In addition, the present invention aims to provide an elastic waist belt buckle which can improve the wearing feeling of the belt by being uniform in weight and preventing the eccentricity of the elastic member while achieving the above object.

1 is an exploded perspective view of an embodiment of a buckle for the elastic waistband of the present invention.

Figure 2 is a partially exploded perspective view of an embodiment of the stretchable buckle buckle of the present invention.

Figure 3 is a perspective view of one embodiment of a housing cover of the elastic waistband buckle of the present invention.

Figure 4 is a perspective view of the operating state showing an operating state of one embodiment of the elastic belt buckle for the present invention.

5 is an operating state perspective view showing an operating state of an embodiment of the buckle for the elastic waistband of the present invention.

<Description of the symbols for the main parts of the drawings>

10 housing 12 fixed shaft

14: bottom portion 16: side portion

18: cutting part 19: stop projection

20: housing cover 22: pivot

24: fastening portion 26: guide groove

28: opening 30: spring coupling

32: roller 34: spring

35: seating hole 36: coupler

37: engaging projection 40: hanging frame

42: hang rod 43: decay

44: belt belt 46: hanger

50: belt hanger 52: belt hang projection

The present invention to achieve the above object

In the buckle for the belt,

A bottom portion having two cylindrical fixed shafts symmetrically in a vertical line on one side, and a side portion extending upwardly by a predetermined height from an edge except the fixed shaft side of the bottom portion, wherein the bottom portion of the side portions A housing in which a rectangular open cutout is formed symmetrically on the upper and lower sides of the other side;

A plate-shaped housing cover having a shape corresponding to the bottom portion and having a fastening portion engaging with one or more of the housings;

Two hollow cylindrical rollers respectively coupled to the two fixed shafts, two plate-shaped spiral springs wound on the outer circumferential surface of the roller and drawn out in the middle of the two fixed shafts, and one side of the two springs is coupled to one end A plate-like spiral spring assembly having a coupler at the other end having a coupler; And

Hanging rods that are caught by the coupling piece and longer than the width of the housing, one side of the opening portion is stretchable waistband characterized in that it comprises a locking frame having a c-shaped hanger coupled to both ends of the engaging rods and having a belt bite on the other side. Provide a buckle.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The present invention relates to an elastic belt buckle, as shown in Figs. 1 to 2, in the belt buckle, the bottom portion having two cylindrical fixed shafts (12) on one side symmetrically in a vertical straight line 14 and a side portion 16 extending upwardly by a predetermined height from an edge except the fixed shaft 12 side of the bottom portion 14, and the other side of the bottom portion 14 of the side portion 16. A plate-shaped housing 10 having a rectangular open cutout 18 symmetrically formed on the upper and lower sides of the plate 10 and a plate 24 having a shape corresponding to the bottom 14 and engaging one or more of the two or more housings. Two hollow cylindrical rollers 32 coupled to the housing cover 20, the two fixed shafts 12, respectively, and wound around the outer circumferential surface of the roller 32, and one side thereof in the middle direction of the two fixed shafts 12. Two plate-like spiral springs 34 withdrawn, and One end of the two springs 34 are coupled to one end thereof, and the other end of the plate-shaped spiral spring assembly 30 having a coupling member 36 configured as a coupling piece and a locking rod that is caught by the coupling piece and longer than the width of the housing 10. (42), and one side that is an open portion is configured to include a locking frame 40 having a U-shaped hook 46 is coupled to both ends of the locking rod 42 and having a belt bite 44 on the other side.

That is, the housing 10 has a bottom portion 14 having two cylindrical fixed shafts 12 symmetrically in a vertical line on one side as shown, and the fixed shaft of the bottom portion 14. A rectangular open cutout 18 is symmetrically formed on the upper and lower sides of the other side of the bottom portion 14 of the side portion 16, having a side portion 16 extending upward by a predetermined height from the edge except for the (12) side. It is configured to be.

As shown in the drawing, the two fixed shafts 12 are fixed to the bottom portion and the other side of the two fixed shafts 12 are opened so that the rollers 32 can be inserted and rotated, and the rollers 32 and the springs ( 34) are arranged symmetrically in a straight line so that they are arranged symmetrically with respect to the center of the buckle. The distance between the fixed shaft 12 and the fixed shaft 12 and the side portion 16 is to maintain a sufficient distance to facilitate the coupling and rotation of the spring assembly 30.

The side portion 16 of the housing may be formed on the housing 10 side, as shown in Figures 1 to 2, may be formed extending from the edge of the housing cover 20, through which the spring assembly 30 It forms the space inside the housing which can arrange | position a back. The side portion 16 has a cutout portion 18, which is a rectangular opening portion symmetrically on the upper and lower sides, which allows the locking frame 40 to move along the expansion and contraction of the buckle. It is to ensure a slot-shaped movement path formed symmetrically on the upper and lower sides formed by. As a result of this, the movement of the fastening frame 40 extends and contracts through the movement path positioned in line with the belt connection portion, so that no force is generated on the front or rear side of the buckle according to the expansion and contraction. Can be done.

In addition, the housing 10 has a two-stage structure narrowing from the spring position to the cutout, the width reduction can be configured to exceed the distance between the side portion 16 and the spring assembly 30. This prevents the roller and the spring from coming out even when the fixed shaft 12 is damaged during expansion and contraction of the buckle, and the width of the locking frame 40 can be reduced or eliminated from being larger than the width of the entire buckle.

Also, as shown in FIGS. 1 and 2, the stop protrusion 19 may be further included in the housing. The end of the stop projection 19 is located on the outermost than the outermost surface of the spring assembly 30 when the waistband is coupled to the buckle, so that the end of the waistband does not touch the outer peripheral surface of the spring to smoothly rotate the spring Can be.

The housing cover 20 is configured in the form of a plate having a shape corresponding to the bottom portion 14 of the housing and having a fastening portion 24 engaging with one or more of the housings. The fastening part 24 may form a fastening part using various types of fastening methods known in the art, such as fastening bolts. Preferably, as shown in FIG. As shown, one side is preferably connected to the pivot (22). In addition, in order to prevent the decomposition of the components during use, the other side is preferably coupled to the bolt.

In addition, the inner wall of the housing 10 or the housing cover 20 may be configured to further include a guide groove 26 for the movement of the coupler (36). That is, as shown in FIG. 1, the spring assembly 30 is configured in the space formed by the housing 10 and the housing cover 20, and the coupling hole 36 of the spring assembly 30 is stretched and contracted. Since it is preferable to perform a linear motion according to the Figure 3 as shown in Figure 3 to form a guide groove 26 in the position corresponding to the movement of the coupler 36 to prevent the coupler 36 is separated from the linear movement This can lead to more flexible stretching and improve the fit. The guide groove 26 may be formed by adding a hatch as shown, or by simply digging a groove.

In addition, the housing cover 20 has an opening 28 connected to the pivot axis and connected to the pivot 22 at a side end of one end of the housing 10, and connected to the pivot 22 axis and the opening. The back surface consisting of one side and the waist belt engaging protrusion 52 corresponding to the part 28 may be configured to further include a waist belt hanging piece 50 consisting of an L-shape. Through this, the coupling between the buckle and the belt can be executed independently by separating the coupling between the housing 10 and the housing cover 20, thus reducing the number of cases of detaching the integrated buckle.

The plate-shaped spiral spring assembly 30 is wound on two hollow cylindrical rollers 32 respectively coupled to the two fixed shafts 12 and the outer circumferential surface of the roller 32 and one side of the two fixed shafts 12. Two plate-shaped spiral springs 34 drawn out in the middle direction, one end of the two springs 34 are coupled to one end and the other end is coupled to the coupling piece having a shape capable of connecting with the engaging rod 42 ( 36).

The roller 32 may be used in a variety of known materials to facilitate the rotation of the spring, it is preferable to use wood that is advantageous in terms of ease of processing and weight.

It is preferable to use a plate-shaped spiral spring having excellent restoring force and durability as the elastic member, and in the case of using only one conventional plate-shaped spiral spring, when the belt is stretched due to the structure of the plate-shaped spiral spring, the tension is in the lateral direction in addition to the stretching component. Since there is a component of the tension was always a problem that occurs in an eccentric form. Therefore, since the side force causes friction between parts in the stretching process, the elasticity is not made smoothly. Thus, two springs are symmetrically configured so that the side force of the tension is canceled by the force between the two springs.

The other end of the coupling piece 36, the shape of the coupling piece can be known in a variety of connection structure, and preferably have a hook shape for ease of connection and reliability of the coupling when stretched.

In addition, the plate-shaped spiral spring symmetrically configured to remove the vertical component of the component, in addition to the component of the buckle in the front and rear direction, or to prevent the plate spring from bending, the spring 34 and the coupling sphere 36 After the engaging portion has a seating hole 35 in close proximity to the engaging portion, the engaging hole 36 is engaged with the engaging projection (37) corresponding to the seating hole 35 at the time of withdrawal of the spring (34). The coupler 36 may be configured to further have a rear end. As a result of this, when the buckle is extended, the spring 34 is drawn out, and the seating hole 35 is inserted into the engaging hole projection 37 to prevent the plate-shaped spring from twisting. It can reduce the breakage and improve the fit.

The locking frame 40 is caught by the coupling piece of the coupling hole 36 and longer than the width of the housing 10, and one side that is an opening is coupled to both ends of the locking bar 42 and the other side. It is configured to have a U-shaped hanger 46 having a waist belt portion 44. In addition, the belt stitch portion 44 preferably has a protrusion shape to facilitate the removal of the belt.

Through this, the locking frame 40 is capable of stretching along the cutout 18 independently of the other side of the waistband while maintaining a constant tension by the tension of the spring 34 when the waistband is fastened. 40 may be lifted upward of the buckle to facilitate fastening with the waistband. That is, it is possible to rotate in the upward direction using the hook, which is the engaging piece of the coupling tool 36 as the rotation axis.

In addition, in order to prevent the rotational movement of the locking frame 40 from occurring at a predetermined angle or more, the locking bar 42 is latched in a lateral direction of the buckle at a portion other than a connection with the coupling hole 36 as shown. It may be configured to further include an asymmetrical extender 43 extended than the spacing between the rod 42 and the housing 10.

Operational state diagram showing the actual operating state of the present invention is shown in Figures 4 to 5 the locking frame 40 is the other side of the waistband while maintaining a constant tension by the tension of the spring 34 when the belt is fastened Independently has a structure capable of stretching movement along the cutout (18).

According to the elastic belt buckle according to the present invention, the configuration is simpler by reducing the number of components, thereby lowering the parts price and reducing the manufacturing cost and reducing the defective rate by simplifying the assembly process. In addition, the combination of the components has an integrated structure of the case-like structure and at the same time through the structure that prevents the spring escape prevention, the appearance is beautiful, robust and excellent durability, no breakage or separation of the coupling structure during use And, there is an advantage of minimizing the fear of causing damage to the human body due to the buckle.

In addition, the present invention reduces the number of components and shortens the overall length of the buckle, thereby reducing the overall weight of the buckle, which is lighter than the existing telescopic buckle when using the same material, and the overall structure is light and short, so the wearability is excellent. It consists of two sets of symmetrical plate springs symmetrically and at the same time has a guide groove so that the tension caused by the spring is not eccentric but is uniformly generated in the center, and the movement is smooth. have.

The present invention described above is not limited to the above detailed description and drawings, and various modifications and changes made by those skilled in the art without departing from the spirit and scope of the present invention described in the Utility Model Registration Claims below. Modifications are also included within the scope of the present invention.

Claims (6)

In the buckle for the belt, A bottom portion having two cylindrical fixed shafts symmetrically in a vertical line on one side, and a side portion extending upwardly by a predetermined height from an edge except the fixed shaft side of the bottom portion, wherein the bottom portion of the side portions A housing in which a rectangular open cutout is formed symmetrically on the upper and lower sides of the other side; A plate-shaped housing cover having a shape corresponding to the bottom portion and having a fastening portion engaging with one or more of the housings; Two hollow cylindrical rollers respectively coupled to the two fixed shafts, two plate-shaped spiral springs wound on the outer circumferential surface of the roller and drawn out in the middle of the two fixed shafts, and one side of the two springs is coupled to one end A plate-like spiral spring assembly having a coupler at the other end having a coupler; And Hanging rods that are caught by the coupling piece and longer than the width of the housing, and one side of the opening portion is stretched to the waist belt, characterized in that it includes a locking frame having a U-shaped hanger coupled to both ends of the engaging rod and having a belt bite on the other side. buckle. The method of claim 1, The housing has a two-stage structure narrowing from the spring position to the cutout, the width reduction buckle for elastic waist belt, characterized in that exceeds the width between the side portion and the spring. The method of claim 1, The inner waist of the housing or housing cover further comprises a guide groove for movement of the coupler buckle for elastic waist belt. The method of claim 1, The housing cover has an opening that is pivotally connected to a side portion of one end of the housing and is in contact with the pivot axis, and has one surface connected to the pivot axis and configured to conform to the opening and a back surface composed of a belt-cushing protrusion. An elastic belt buckle, characterized in that it further comprises a waist belt. The method of claim 1, The hook rod is elastic belt buckle, characterized in that it further comprises an asymmetrical extender extending beyond the distance between the hook rod and the housing in the side direction other than the connection portion with the coupler. The method of claim 1, The spring has a seating hole in close proximity to the joining portion after the joining portion with the coupler, the coupler further comprises a coupler projection corresponding to the seating hole at the rear end of the coupler end when the spring is taken out. Elastic belt buckle, characterized in that.