KR101883776B1 - Hinge having collision prevention function with improved durability and manufacturing method thereof - Google Patents

Abstract

A hinge with an anti-collision function having improved durability, comprising: a main housing having a through hole; A pair of housings provided at both ends of the main housing so that the main housing is rotatable, a coupling hole corresponding to the through hole is formed, A round bar penetrating the through-hole and having a portion of each of the opposite ends thereof inserted into the fastening hole; A rubbing portion provided to surround a part of a surface of the round bar; A protector provided to surround the surface of the round bar and the friction portion; And a guiding part formed with a guide groove having both open sides through which the round bar passes, and guiding the guiding groove into the main housing through the through hole, wherein the guiding part surrounds the outer surface of the round bar and the friction part, And is brought into close contact with the surface of the ground round bar and the friction portion.
According to another aspect of the present invention, there is provided a method of manufacturing a hinge having a durability improved anti-collision function including a main housing, a housing, a round bar, a friction portion, a protective portion and a guide portion, step; Fitting a friction portion to each of both ends of the round bar so as to surround an outer circumferential surface of the round bar; Covering the outer surface of the round bar and the friction portion; Forming a guide portion to cover a surface of the protective portion; Inserting a round bar into the through hole of the main housing so that a part of both ends of the round bar are exposed to both sides of the main housing; Closing both ends of the main housing so that the round bar inserted into the through hole is not discharged to the outside of the main housing; And joining the housing to each of the round rods exposed at both ends of the main housing. [5] The method of claim 1,

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a hinge having an anti-collision function with improved durability and a method of manufacturing the hinge.

The present invention relates to a hinge having an anti-collision function with improved durability and a method of manufacturing the hinge.

More particularly, in the process of manufacturing a hinge, when a guide portion is formed to be coupled to the inside of the main housing so as to surround the round bar and the friction portion, the guide portion is broken by the protective portion surrounding the round bar and the outer surface of the friction portion, And a hinge capable of preventing a door from being closed by a frictional force irrespective of a user's intention, and a method of manufacturing the hinge.

Generally, the hinge is used as a door or a connecting member for rotating the window or the like installed on the door frame.

That is, the hinge is mainly used to open a door or a window by performing a rotary axis function.

As one of such hinges, a hinge has been disclosed in Patent Publication No. 10-0766010.

FIG. 1 is an exploded perspective view of a hinge according to the related art. The hinge has a structure in which a central shaft tube of a fixed portion fixed to one side of a case 1 is fitted to an inner side surface of an axial tube formed at upper and lower portions of a movable portion, (12) is projected forward to form a shaft hole (14) on an inner surface of the shaft hole (14), the shaft hole (14) is open at the front side and the rear side is sealed A fixing member (10) having a hole (18) formed in a wall surface thereof and having an engagement groove (16) formed on one side of the shaft hole (14); A fixing projection 24 is formed in a gear shape along the outer periphery of both ends of the rotating shaft 22 so that one end of the rotating shaft 22 penetrates the shaft hole 14 and the hole 18 of the fixing member 10 A hinge rotation adjusting member 20 formed with a stopper 28 at a center outer circumferential edge of the rotating shaft 22 to restrict rotation of the rotating shaft 22; And shaft pipes 32 and 34 having shaft holes 32a and 34a formed on the inner surface thereof so as to be pressed against the fixing protrusions 24 of the rotary shaft 22. The shaft pipes 32 and 34 A bottom plate 32b and a bottom plate 34b integrally connected to the door 1 are bent to one side and fixed to the side surface of the door 1 by bolts and the bottom plates 32b and 34b are separated from each other, 30).

The conventional hinge has a stopper 28 formed at the center of the outer periphery of the rotary shaft 22 so that the door 2 can be kept open at a position where the operator opens the door 2. The stopper 28 is fixed It is possible to prevent the door 2 from being closed regardless of the intention of the operator by fixing one end to the shaft hole 14 and the engagement groove 16 of the member so as to restrict the rotation of the rotation shaft 22. [

However, in the conventional hinge, it is positively possible to regulate the rotation of the door 2 by implementing the stopper function by using the frictional force through the plurality of stoppers 28. However, as the rotation of the door 2 is repeated, There is a problem that the stopper 28 is abraded due to an increase in the frequency of the hinge.

In the conventional hinge assembly, the stopper 28 has a plurality of first disk plates 28a formed with protruding keys 28b to be engaged with key grooves 26 formed on the rotary shaft 22. The first disk plates 28a Is rotated by the rotation of the rotating shaft 22 and abrasion occurs due to friction so that a constant frictional force is not exerted on the first disc plate 28a provided in a plurality of discs, 28a are different from each other, the rotation of the door 2 is repeated, so that the rotational force of the first disk plate 28a is varied, and rotation restriction due to friction can not be smoothly performed.

The applicant of the present invention has a frictional member formed of a spring member or a washer member between a housing and a main housing coupled to rotate to the housing. By suppressing the smooth pivoting of the door by using friction generated when the door is rotated, The hinge is provided with an anti-collision function which can be prevented from being closed regardless of the user's intention.

As described above, the hinge with the anti-collision function of the registered patent application No. 10-1634688 filed by the applicant of the present invention will be described with reference to FIG. 2. A main housing having a through hole and a fastening hole corresponding to the through hole are formed A pair of housings provided at both ends of the main housing so as to allow the main housing to be rotatable, a pair of housings which are inserted through the through holes and which are provided at both sides of the connecting rod, .

The hinge with such a conventional anti-collision function can reliably prevent the door from being closed regardless of the intention of the user by suppressing the smooth pivoting of the door by using friction generated when the door is rotated.

However, in the hinge with the conventional anti-collision function, oil such as grease is applied for smooth operation between the round bar and the friction member during the forming of the guide portion which is coupled to the inside of the main housing so as to surround the round bar and the friction portion during the manufacturing process of the hinge, 3, the oil applied between the round bar and the friction member leaks to the outside of the guide member and cracks are generated in the guide member, as shown in FIG. 3 , It is difficult to expect the frictional force of the hinge, and the life of the hinge is shortened.

Patent Registration No. 10-0766010 (Apr. 4, 2007) Patent Registration No. 10-1634688 (June 23, 2016)

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above problems, and it is an object of the present invention to provide a hinge assembly for a hinge assembly, which, when forming a guide portion to be coupled to the inside of a main housing to surround a round rod and a friction portion, The door is prevented from being closed regardless of the intention of the user due to the frictional force, and the anti-collision function with improved durability is provided Hinge and a method of manufacturing the same.

According to an aspect of the present invention, there is provided a hinge comprising: a main housing having a through hole formed therein; A pair of housings provided at both ends of the main housing so as to allow the main housing to pivot; A round bar penetrating through the through hole and having a portion of each of the opposite ends introduced into the fastening hole; A friction portion provided to surround a part of a surface of the round bar; A protective portion provided to surround the round bar and the outer surface of the friction portion; And a guiding part having guiding grooves whose both sides are opened to allow the round bar to pass therethrough and guided into the main housing through the through holes. The guiding part covers the outer surfaces of the round bar and the friction part, And a hinge provided with an anti-collision function with improved durability, which is in close contact with the outer surface of the friction portion.

A method of manufacturing a hinge with improved anti-collision function according to the present invention is a method of manufacturing a hinge with a durability improved anti-collision function including a main housing, a housing, a round bar, a friction portion, Injecting oil into the oil groove formed on the outer peripheral surface of the round bar; Sandwiching a friction portion on each of both ends of the round bar to surround the outer circumferential surface of the round bar; Covering the surface of the round bar and the friction portion with a protective portion; Molding the guide portion so as to surround the outer surface of the protective portion; Inserting a round bar into the through hole of the main housing so that a part of both ends of the round bar are exposed to both sides of the main housing; Closing both ends of the main housing so that the round bar inserted into the through hole is not discharged to the outside of the main housing; And joining the housing to each of the round rods exposed to both ends of the main housing. [0012] According to another aspect of the present invention, there is provided a method of manufacturing a hinge with improved durability, .

The present invention has a frictional portion formed by a spring between a housing and a main housing coupled to be pivotally rotated by the housing. By suppressing the smooth pivotal movement of the door by using friction generated when the door is rotated, It has a remarkable effect that it can be prevented from being closed in advance.

In addition, the present invention provides a protector that encloses the outer surface of the round bar and the friction portion when the guide portion is formed to be coupled to the inside of the main housing to enclose the round bar and the friction portion in the manufacturing process of the hinge, So that it has a remarkable effect of smoothly performing the function according to the object of the present invention.

1 is an exploded perspective view of a conventional hinge.
2 is an exploded perspective view of a hinge with a conventional anti-collision function.
3 is a prototype photograph of a hinge with a conventional anti-collision function.
4 is an exploded perspective view of a hinge with improved anti-collision function according to the present invention.
5 is a perspective view illustrating an example in which a main housing and a housing are coupled to a door and a door frame in a hinge having an anti-collision function with improved durability according to the present invention.
6 is an exploded perspective view showing another example of an oil groove formed in a round bar in a hinge having an anti-collision function with improved durability according to the present invention.
7 is a cross-sectional view showing a part of the friction portion in the hinge with improved anti-collision function according to the present invention.
8 is a photograph of a prototype showing an example in which heat is applied to a protector in a hinge having an anti-collision function with improved durability according to the present invention.
9 is a prototype photograph showing an example in which a guide is formed in a hinge with an improved anti-collision function according to the present invention.
10 is a flowchart illustrating a method of manufacturing a hinge having an anti-collision function with improved durability according to the present invention.

Advantages and features of embodiments of the present invention and methods of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The terms and words used in the present specification and claims should not be construed to be limited to ordinary or dictionary meanings defined in consideration of functions in the embodiments of the present invention, It should be construed in the meaning and concept consistent with the technical idea of the present invention based on the principle that the concept of the term can be appropriately defined in order to explain it in the best way.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents It should be understood that water and variations may be present.

Before describing the present invention with reference to the accompanying drawings, it is not shown what is not necessary in order to reveal the gist of the present invention, that is, a publicly known structure that a person skilled in the art can easily add, .

A hinge with improved durability and a method of manufacturing the same according to the present invention includes a guide part 600 coupled to the inside of the main housing 100 to surround the round bar 300 and the friction part 400 in the process of manufacturing the hinge, The guide part 600 is prevented from being broken and the frictional force is prevented from being lowered by the provision of the protective part 500 which surrounds the round bar 300 and the outer surface of the friction part 400, Which can be prevented from being closed regardless of the user's intention, and a method of manufacturing the hinge.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a hinge with an improved anti-collision function according to the present invention will be described in detail with reference to the accompanying drawings.

4 is an exploded perspective view of a hinge with improved anti-collision function according to the present invention.

The hinge with the improved durability of the collision prevention function according to the present invention can prevent the rotation of the round bar 300 and the friction portion 400 when the guide portion 600 is formed on the outer surfaces of the round bar 300 and the friction portion 400. [ The housing 200, the round bar 300, and the friction portion (not shown) so as to prevent the guide portion 600 from being damaged by the protection portion 500 to cover the outer surface of the main housing 100, 400, a protection unit 500, and a guide unit 600.

As shown in the accompanying drawings, the main housing 100 is formed with a through hole 110 whose inside is hollow so that a round bar 300 to be described later is passed through the through hole 110, And includes an outer plate 220 extending outwardly and including a through hole 110, an auxiliary cap 120, an O-ring 130, a cap 140 and an inner plate 150.

The through hole 110 is formed to communicate with both ends of the main housing 100 through a round bar 300 to be described later, and oil is contained in the through hole 110.

The oil contained in the through hole 110 is spread in a thin layer between the round bar 300 and the friction part 400 to minimize wear of the round bar 300 and the friction part 400 .

4, each of the through holes 110 is formed with a step 111 having a diameter larger than the entire diameter of the through hole 110, and the through hole 110 is formed in a selected one of the through holes 110, A fitting groove 112 is formed in the shape of a side opening so as to communicate with a part of the outer circumferential surface 110.

When the guide portion 600 described later is inserted into the through hole 110, the fitting protrusion 620 formed in the guide portion 600 is fitted into the fitting groove 112 of the fitting groove 112, The guide part 600 formed to enclose the outer surface of the main body 300 can share the rotational force so that the guide part 600 can be smoothly rotated from the round rod 300 when the main housing 100 rotates At this time, it is possible to prevent the door from being closed regardless of the intention of the user due to the generated friction.

The auxiliary cap 120 is inserted into both ends of the through hole 110 of the main housing 100 and is hooked on the step 111 so that the auxiliary cap 120 is inserted and inserted A groove 122 is formed.

The auxiliary cap 120 is inserted into the through hole 110 of the main housing 100 and can be tightly coupled to the auxiliary cap 120.

In this case, the auxiliary cap through-hole 121 has a diameter larger than that of the auxiliary cap through-hole 121, and the O-ring 130, which will be described later, 122, respectively.

The O-ring 130 is partly inserted into the insertion groove 122 of the auxiliary cap 120 and is disposed between the auxiliary cap 120 and the cap 140 described later. The O-ring 130 is made of an elastic material such as rubber, And functions to prevent the oil contained in the main housing 100, that is, the through hole 110, from leaking to the outside.

The cap 140 is provided on the outer side of the auxiliary cap 120 and is provided between the main housing 100 and the housing 200 and has a cap hole 141 through which the round bar 300 passes.

The cap 140 closes the through hole 110 of the main housing 100 and thereby the main housing 100, the round bar 300 provided in the through hole 110 of the main housing 100, 400, the protection unit 500, the guide unit 600, the auxiliary cap 120, and the O-ring 130 are integrally formed to have a single body.

The housing 200 is rotated together with the main housing 100 with the round bar 300 as a rotation shaft to be described later. The housing 200 is formed with a coupling hole 210 corresponding to the through hole 110, And an outer plate 220 provided at both ends of the housing 100 and extending outwardly.

4, a round bar 300 is passed through a through hole 110 of the main housing 100, both ends of the round bar 300 are exposed to the outside of the main housing 100, The main housing 100 and the pair of housings 200 are brought into a state in which the main housing 100 and the pair of housings 200 can rotate relative to each other with the round bar 300 as an axis.

The inner plate 150 of the main housing 100 and the outer plate 220 of the housing 200 are respectively coupled to the door and the door frame so that the door can freely rotate.

The outer plate 220 is formed in each of the pair of housings. As shown in FIG. 4, the inner plate 150 is partially enclosed. The outer plate 220 includes a latching groove 221 and a latching protrusion 222 .

The latching grooves 221 are formed on the side surfaces of the pair of outer plates 220 facing each other and are formed on one outer plate 220 of the pair of outer plates 220.

As shown in FIG. 4, the latching groove 221 is formed in the inner side of the outer plate 220.

The latching protrusion 222 is formed in a shape corresponding to the latching groove 221 and is formed on the other outer plate 220 of the pair of outer plates 220. The latching protrusion 222 protrudes outward from the outer plate 220 .

As shown in FIG. 5, the latching protrusion 222 is fitted in the latching groove 221, but is not separated in the left and right directions of the outer plate 220 coupled to the door frame, So that when a disaster such as an earthquake occurs, the housing 200 coupled to the door frame is expanded and contracted only in the direction in which the pieces (bolts) are coupled.

Accordingly, the pair of housings 200 are expanded and contracted in different directions with respect to the forward and backward directions, and the degree of mutual misalignment of the pair of housings 200 is reduced by the doors having the long widths in the forward and backward directions It is possible to prevent the rigidly coupled housing 200 from being separated from the door frame.

On the other hand, in the case where the latching groove 221 is closed as in JP 10-1634688, it is difficult to form the latching groove 221 in a shape corresponding to the latching protrusion 222, And the like.

Further, the latching grooves 221 are not provided in the left and right directions in which the housing 200 is engaged. When the pair of outer plates 220 are expanded and contracted in the left and right directions, There is a problem in that durability is degraded because there is a limit in attenuating the extent of displacement of the pair of housings 200 due to the thin thickness of the door having the size.

Therefore, in this specification, the latching groove 221 is cut from the upper side to the lower side so as to communicate with the front and rear directions in which the housing 200 is coupled, thereby preventing the above-mentioned problems.

The round bar 300 passes through the through hole 110 of the main housing 100 and is inserted into the coupling hole 210 of the housing 200 at both ends of the round bar 300. The round bar 300 connects the main housing 100 and the housing 200 ) To rotate with each other.

The round rod 300 has an oil groove 310 formed in the outer peripheral surface thereof.

The oil groove 310 is formed in the outer circumferential surface of the round bar 300 to form a ring-shaped oil groove 311, a straight oil groove 312 and a helical oil groove 313, 4, the ring-shaped oil groove 311 and the straight oil groove 312 are formed on the outer surface of the round bar 300, or the round bar 300 is formed as shown in FIG. 6, The ring oil groove 310 and the helical oil groove 313 may be formed on the outer surface.

The ring-shaped oil groove 311 is formed in the shape of a ring at an intermediate portion of the round bar 300, so that oil is contained in the space of the ring-shaped oil groove 311.

As shown in FIG. 4, the straight oil grooves 312 are formed in the longitudinal direction of the round bar 300, and a plurality of the oil groove 312 may be radially formed around the rotary shaft of the round bar 300 according to design conditions .

The helical oil groove 313 is formed in a spiral shape on the outer circumferential surface of the round bar 300, as shown in FIG.

The linear oil groove 312 and the helical oil groove 313 allow the oil to spread between the round bar 300 and the later described friction portion 400 so that the wear between the round bar 300 and the friction portion 400 Can be minimized.

It is needless to say that the ring-shaped oil groove 311, the straight oil groove 312 and the helical oil groove 313 may be formed on the surface of the round bar 300 according to the design conditions.

At both ends of the round bar 300, the fixed ends 320 may be serially formed along the outer circumferential surface.

The fixed end 320 having the serration formed therein is formed at each of both ends of the round bar 300 and is inserted into the fastening hole 210 of the housing 200 so as to be firmly engaged with the fastening hole 210, It is possible to prevent the round bar 300 from slipping from the housing 200 when the main housing 100 and the housing 200 are rotated with the round bar 300 as a turning shaft.

According to the design conditions, serration may be formed on the inner circumferential surface of the fastening hole 210 of the main housing 100 to correspond to the fixed end 320.

The main housing 100 and the housing 200 are rotated only by the friction between the round bar 300 and the frictional portion 400 because the housing 200 and the round bar 300 are more firmly engaged with each other.

The round rod 300 is fixed to the housing 200 by a separate heat treatment so that the fixed end 320 is firmly engaged with the fastening hole 210 of the housing 200 and the abrasion due to the friction with the friction portion 400 is minimized, , Abrasion resistance and hardness can be increased.

The heat treatment of the round bar 300 may be performed using a nitriding heat treatment process in which activated nitrogen is diffused to the surface of the round bar 300 to form a high hardness nitrided layer, and an ion nitriding heat treatment process may be used in the nitriding heat treatment process.

Due to such an ion nitriding heat treatment process, a nitrided compound layer is formed on the surface of the round bar 300. The compound layer improves the corrosion resistance and improves the hardness.

At this time, the compound layer may be formed of a nitrogen (Nitrogen) type ceramic film.

The strength of the round bar 300 is greater than the strength of the coupling hole 210 of the housing 200 made of a steel material so that even if the round bar 300 is used as a turning shaft and the main housing 100 and the housing 200 are rotated The housing 200 and the round bar 300 can be firmly engaged with each other so that the rotation can be induced only by the friction between the round bar 300 and the frictional part 400 described later.

The friction portion 400 is provided to surround a part of the outer surface of the round bar 300. In the hinge according to the present invention, the friction portion 400 is formed of a spring.

4, the frictional parts 400 are provided in pairs, the inner circumferential surface thereof is in contact with the outer surface of the round bar 300, the outer circumferential surface thereof is in contact with the inner circumferential surface of the protective part 500 described later, The guide part 600 is formed into a shape which surrounds the outer surface of the guide part 600.

In this state, when the housing 200 and the round bar 300 are rotated from the main housing 100, the round bar 300 rubs against the frictional part 400, thereby preventing the free rotation of the round bar 300 do.

At this time, the elasticity may be designed differently according to the conditions such as the thickness, the number of turns, the material, and the plating of the friction portion 400. Further, the degree of friction generated between the round bar 300 and the friction portion 400 Can be adjusted.

That is, by adjusting the compressive force of the frictional part 400, the torque value of the hinge can be adjusted. Thus, by changing the frictional part 400, the degree of softness of the hinge can be adjusted.

According to the design conditions, the frictional portion 400 is formed in a spring structure in which the cross-section of the coil is a quadrangular shape. As shown in Fig. 7, a corner portion where the coil- So that the beveled portion 410 can be formed between the chamfered portion 410 and the outer circumferential surface of the round bar 300. As shown in FIG.

The chamfer groove 420 provides a space through which the oil moves and is formed between the round bar 300 and the friction portion 400 through the oil groove 310 formed in the outer surface of the round bar 300 and the chamfer groove 420. [ So that the oil spreads over a larger area.

The protective portion 500 is provided to surround the round bar 300 and the outer surface of the friction portion 400 and may be formed of a circular tube-shaped heat-shrinkable tube having both ends communicated with each other.

A heat shrinkable tube is a tube that shrinks when heat is applied. It is mainly used to wrap terminals or other materials with different shapes or sizes. It is made of a material such as polyester, polypropylene, urethane, polyvinyl choride .

When the round bar 300 and the round bar 300 are wrapped around the protective part 500 and then the heat is applied to the round bar 300 and the round bar 300, And the outer surface of the friction portion 400.

3, a guide portion 600 is formed on the outer surfaces of the round bar 300 and the friction portion 400, At this time, the air layer is formed by the irregular outer circumferential surface due to the morphological characteristics of the part where the round bar 300 and the friction part 400 are coupled and the friction part 400 made of the spring. There is a problem in that cracks are generated due to failure to be formed firmly.

That is, if cracks are generated in the guide portion 600, the durability of the guide portion 600 is likely to be damaged and the life of the guide portion 600 may be deteriorated, thereby losing the function as a hinge.

Therefore, the hinge with improved durability according to the present invention has the protector 500 on the outer surface of the round bar 300 and the friction bar 400, and the protector 500 is heated by the round bar 300 And the outer circumferential surface of the friction portion 400, so that the guide portion 600 described later can be firmly formed.

9, the guide portion 600 is formed in a shape corresponding to the through hole 110 and has a circular cross section so that the guide portion 600 can be inserted into the fitting groove 112 formed in the through hole 110 And a fitting protrusion 620 protruding outward is formed on the outer peripheral surface.

The fitting protrusion 620 has a shape that is long in the longitudinal direction of the guide part 600 when the guide part 600 is formed, / RTI > may be formed to have a length of 3/5.

When the round bar is inserted into the through hole 110 of the main housing 100, the fitting protrusion 620 of the guide portion 600 is fitted into the fitting groove 112 formed in the through hole 110 from one side So that the main housing 100 and the guide unit 600 can share the rotational force.

At this time, the guide part 600 is preferably formed by injection molding.

Further, since the guide part 600 is formed so as to be brought into close contact with the friction part 400 by the protection part 500 closely attached to the outer surface of the friction part 400 made of the spring, the frictional force is maximized, The smooth pivoting is suppressed by the generated friction, so that it can be prevented from being closed regardless of the intention of the user.

According to the present invention, the hinge with improved anti-collision function according to the present invention includes a friction part 400 formed of a spring between the housing 200 and the main housing 100 coupled to rotate the housing 200, The door can be prevented from being closed regardless of the intention of the user by suppressing the smooth pivoting of the door by using the friction generated when the door is rotated.

The guide part 600 is coupled to the inside of the main housing so as to surround the round bar 300 and the friction part 400 during the manufacturing process of the hinge, The guide unit 600 can be prevented from being damaged due to the breakage of the guide unit 600 and the frictional force can be prevented.

Hereinafter, a method of manufacturing a hinge with an improved anti-collision function according to the present invention will be described.

First, it should be noted that overlapping portions of the contents already described in Figs. 4 to 9 are not described.

10 is a flowchart illustrating a method of manufacturing a hinge having an anti-collision function with improved durability according to the present invention.

A method of manufacturing a hinge with improved durability according to the present invention includes a main housing 100, a housing 200, a round bar 300, a friction portion 400, a protection portion 500, and a guide portion 600 The method of manufacturing a hinge with improved durability, the method comprising the steps of: sandwiching a friction part (400) to surround the outer circumferential surface of the round bar (300) at both ends of the round bar (300) ); (S20) injecting oil into the oil groove 310 formed on the outer peripheral surface of the round bar 300; (S30) covering the protective part 500 to cover the round bar 300 and the outer surface of the friction part 400; A step (S40) of forming a guide part (600) so as to surround a surface of the protective part (500); Inserting the round bar 300 into the through hole 110 of the main housing 100 so that a part of both ends of the round bar 300 is exposed to both sides of the main housing 100; Closing each of both ends of the main housing 100 so that the round bar 300 inserted into the through hole 110 is not discharged to the outside of the main housing 100; And coupling the housing 200 to each of the round rods 300 exposed at both ends of the main housing 100 (S70).

Step S10 of sandwiching the frictional part 400 so as to surround the outer circumferential surface of the round bar 300 at both ends of the round bar 300 is performed so that the frictional part 400 including the spring is wound around the round bar 300 To each of the opposite ends of the round bar 300.

When the housing 200 and the round bar 300 are rotated from the main housing 100 with the round bar 300 as a rotation axis, the round bar 300 rubs against the friction bar 400, The free rotation of the rotor.

Therefore, by suppressing the smooth pivotal movement of the door by the friction generated between the round rod 300 and the friction portion 400, it is possible to prevent the door from being closed regardless of the intention of the user.

The step S20 of injecting oil into the oil groove 310 formed on the outer circumferential surface of the round bar 300 injects oil between the round bar 300 and the friction portion 400 so that the round bar 300, To minimize wear and tear.

A step S30 of covering the protective part 500 to cover the outer surfaces of the round bar 300 and the friction part 400 is performed by attaching a part of the round bar 300 and a part of the friction part 400 to the heat shrinkable tube having a circular tube shape, 400 and then the outside is heated to apply the protection part 500 to the outer circumferential surface of the frictional part 400 so as to be in close contact with the round bar 300 as shown in FIG.

When the round bar 300 and the friction portion 400 are in close contact with the irregular outer circumferential surfaces of the round bar 300 and the friction portion 400 and the guide portion 600 is formed in the guide portion forming step S40 The durability of the hinge can be improved by minimizing the air layer that can be formed between the guide portion 600 and the guide portion 600 due to the elasticity of the friction portion 400, have.

The step S40 of molding the guide unit 600 to cover the outer surface of the protector unit 500 is a step of molding the guide unit 600 by injection molding and has a shape corresponding to the through hole 110, The step of molding the protector 500 such that the protrusion 620 protruding outward is formed on the outer circumferential surface so as to be fitted in the fitting groove 112 formed in the through hole 110 .

The step S50 of inserting the round bar 300 into the through hole 110 of the main housing 100 such that a part of both ends of the round bar 300 are exposed to both sides of the main housing 100 may be performed at a portion of the through hole 110 The frictional portion 400 and the protector portion 600 are inserted into the through hole 110 so that the fitting protrusion 620 of the guide portion 600 is fitted into the fitting groove 112 having an open shape to communicate with the outer side 500 and the guide part 600 are inserted.

Thus, the fitting protrusion 620 is fitted into the fitting groove 112, so that the main housing 100 and the guide portion 600 can share the rotational force.

The step S60 of finishing the both ends of the main housing 100 to prevent the round bar 300 inserted into the through hole 110 from being discharged to the outside of the main housing 100 is performed by inserting the auxiliary cap 120 The auxiliary cap 120 is inserted into the auxiliary cap 120 in order to allow the round bar 300 exposed at both ends of the main housing 100 to pass through the auxiliary cap through- The circular rod 300 is inserted into the insertion hole 122 formed in the auxiliary cap 120 and the cap 140 is inserted into the through hole 110 to engage with the step 111, Through the cap through-hole 141 formed in the cap.

The auxiliary cap 120 is inserted into the stepped portion 111 formed at both ends of the through hole 110 and inserted into the insertion groove 122 formed in the auxiliary cap 120, 130 are sandwiched, the oil contained in the through hole 110 is minimally leaked to the outside.

The cap 140 is provided between the main housing 100 and the housing 200 to close the through hole 110 of the main housing 100 from the outside as shown in the accompanying drawings.

The step S70 of joining the housing 200 to the respective round rods 300 exposed to both ends of the main housing 100 may include joining the housing 200 to the serrated portions along the outer circumferential surface at both ends of the round rods 300, As shown in the accompanying drawings, the outer plates 220 are coupled to face each other.

The outer plate 220 is provided to surround the inner plate 150 of the main housing 100 and the main housing 100 and the housing 200 are rotated with the circular rod 300 as a rotation axis, So that the door and the like can freely rotate.

At this time, the pair of main housings 100 coupled to the outer plates 220 to face each other has the latching groove 221 formed in one outer plate 220 and the latching groove 221 is formed in the other outer plate 220, The pair of housings 200 can be rotated at predetermined intervals in the direction in which the housing 200 rotates so that when a disaster such as an earthquake occurs, It is possible to prevent the housing 200 from being detached from the door frame in advance by damping the degree of displacement of the housing 200 when the housing 200 is expanded and contracted in different directions with respect to the forward and downward directions.

The method of manufacturing a hinge with such a durability-improved anti-collision function utilizes the friction generated between the round bar 300 and the friction portion 400 to suppress the smooth pivoting of the door, It is possible to prevent it from being closed.

A protector 500 for covering the outer surface of the round bar 300 and the friction part 400 when the guide part 600 is coupled to the inside of the main housing so as to surround the round bar 300 and the friction part 400 Thereby preventing the guide portion 600 from being damaged and the frictional force from being lowered. Thus, the function according to the object of the present invention can be smoothly performed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the present invention. It can be seen that branch substitution, modification and modification are possible.

100: main housing 110: through hole
111: step 112:
120: Auxiliary cap 121: Auxiliary cap opening
122: insertion groove 130: o-ring
140: cap 141: cap opening
150: inner plate 200: housing
210: fastening hole 220: outer plate
221: Retaining groove 222:
300: Round bar 310: Oil groove
311: ring-shaped oil groove 312: linear oil groove
313: Spiral oil groove 320: Fixed end
400: Friction part 410: Chamfer part
420: chamfer groove 500: protective portion
600: guide portion 610: guide groove
620:

Claims (10)

In the hinge provided with the anti-collision function with improved durability,
A main housing 100 having a through hole 110 formed therein;
A pair of housings 200 provided at both ends of the main housing 100 so as to allow the main housing 100 to be pivotable with a coupling hole 210 corresponding to the through hole 110;
A round bar 300 penetrating the through hole 110 and having a portion of each of the opposite ends thereof inserted into the fastening hole 210;
A rubbing part 400 provided to surround a part of the outer surface of the round bar 300;
A protector 500 installed to surround the round bar 300 and the outer surface of the friction part 400; And
And a guide unit 600 formed with a guide groove 610 having both sides opened to allow the round bar 300 to pass therethrough and being inserted into the main housing 100 through the through hole 110,
The protector 500 is wrapped around the round bar 300 and the outer surface of the friction part 400 and is closely attached to the outer surface of the round bar 300 and the friction part 400 when heat is applied thereto. Hinge with function.
The method according to claim 1,
The main housing 100
Wherein a fitting groove (112) is formed in a side opening shape so that a part of the through hole (110) communicates with an outer side of the through hole (110).
The method according to claim 1,
The housing (200)
And an outer plate 220 extending in an outward direction,
A latching groove 221 formed in a side surface of the pair of outer plates 220 facing each other and formed in one of the outer plates 220 of the pair of outer plates 220; And
And a latching protrusion (222) formed in the outer plate (220) of the other one of the pair of outer plates (220) in a shape corresponding to the latching groove (221) This hinge with improved collision protection.
The method according to claim 1,
The protection unit 500 includes:
And a heat-shrinkable tube, wherein the hinge has improved durability.
The method according to claim 1,
The guide part 600
And a protrusion (620) protruding outward from the outer circumferential surface is formed on the outer circumferential surface.
A method of manufacturing a hinge having a durability improved anti-collision function including a main housing 100, a housing 200, a round bar 300, a friction portion 400, a protection portion 500, and a guide portion 600 As a result,
(S10) sandwiching the friction portion (400) to surround the outer circumferential surface of the round bar (300) at both ends of the round bar (300);
(S20) injecting oil into the oil groove 310 formed on the outer peripheral surface of the round bar 300;
(S30) covering the protective part 500 to cover the round bar 300 and the outer surface of the friction part 400;
A step (S40) of forming a guide part (600) so as to surround a surface of the protective part (500);
Inserting the round bar 300 into the through hole 110 of the main housing 100 so that a part of both ends of the round bar 300 is exposed to both sides of the main housing 100;
Closing each of both ends of the main housing 100 so that the round bar 300 inserted into the through hole 110 is not discharged to the outside of the main housing 100; And
And a step (S70) of coupling the housing (200) to each of the round rods (300) exposed at both ends of the main housing (100). Gt;
The method of claim 6,
The step S30 of covering the protector 500 to cover the outer surfaces of the round bar 300 and the friction part 400
Wherein the heat shrinkable tube is wrapped around a part of the round bar (300) and the outer surface of the friction part (400), and heat is applied thereto.
The method of claim 6,
The step S40 of forming the guide part 600 to cover the surface of the protective part 500
Injection molding,
Wherein a protrusion (620) protruding outward is formed on an outer circumferential surface of the guide part (600).
The method of claim 7,
The step S50 of inserting the round bar 300 into the through hole 110 of the main housing 100 such that a part of both ends of the round bar 300 is exposed to both sides of the main housing 100
The fitting protrusion 620 of the guide part 600 is fitted into the fitting groove 112 which is opened to the side so as to communicate with a part of the through hole 110 to connect the main housing 100 and the guide part 600, So as to share a rotational force with respect to the hinge.
The method of claim 6,
The step S60 of finishing the both ends of the main housing 100 so that the round bar 300 inserted into the through hole 110 is not discharged to the outside of the main housing 100
The auxiliary cap 120, the O-ring 130, and the auxiliary cap 120 are sequentially inserted into the through hole 110,
The auxiliary cap 120 is inserted into the through hole 110 so that the round bar 300 exposed at both ends of the main housing 100 passes through the auxiliary cap through hole 121 to be engaged with the step 111, The circular rod 300 penetrates the cap through hole 141 formed in the cap 140 after the O-ring 130 is inserted into the insertion groove 122 formed in the auxiliary cap 120. [ A method of manufacturing a hinge with improved collision avoidance.

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