KR20140004966U - Roller insert structure - Google Patents

Abstract

The present invention relates to a rail fastening structure and includes a damper assembly (10) installed inside a rail (R) provided on a door frame (F) for buffering an impact upon opening and closing a door, A locking structure of a railcar coupled to the inside of an insertion groove (26) formed to be recessed, comprising: a rake body (42) to which a plurality of parts are coupled; An adjusting bolt fixing hole 44 formed to penetrate the knurl body 42 up and down and having a thread on an inner circumferential surface thereof; An adjusting bolt 46 screwed to the adjusting bolt fixing hole 44 and having a door D mounted on one side thereof; A wheel support portion 52 protruding in a shape corresponding to each other on both sides of the knockout body 42 and one of which is received in the insertion groove 26 of the damper assembly 10; A fastening hole 56 formed in the wheel support portion 52 so as to penetrate the wheel support portion 52 in a circular manner; A coupling hole (30) formed in the insertion groove (26) and coaxial with the coupling hole (56); And a coupling member 60 passing through the coupling hole 56 and the coupling hole 30 to fix the coupling between the insertion groove 26 of the damper assembly 10 and the wheel support 52, And more particularly to a railcar fastening structure.
According to the present invention, there is provided a cam follower structure in which a locking protrusion formed in an insertion groove of a damper unit and a locking protrusion of a cam follower are formed in an auxiliary coupling groove, the locking protrusion being inserted into a locking groove of a wheel supporting portion, And is accurately located at a position to be fixed. Since the operator can easily engage the damper assembly with the damper assembly by the above-described damper fastening structure, the assembling workability of the damper assembly and the damper can be improved.
In addition, it is possible to prevent the parts breakage due to misassembly of the camshaft and the damper assembly, thereby improving the assembly failure rate and reducing the material cost due to the product defective ratio.

Description

Roller insert structure

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a railway fastening structure, and more particularly, to a railway fastening structure capable of firmly fixing a railway car coupled to a damper assembly and easily detachable.

Generally, doors and verandas are provided with a door called "Chinese door", and these doors are installed to flow left and right by being suspended or supported by a mechanism called a "car".

Since the "car" is a commonly used part, detailed description is omitted here.

The door is inserted into the guide rail of the door frame, and the door is coupled to the head of the adjustment bolt to move the door left and right in the guide rail according to the left and right movement of the door.

A common car is disclosed in Korean Patent Publication No. 10-2011-0102066. Such an articulated car is composed of a frame forming a skeleton and a wheel installed in pairs on both sides of the frame. The rolling carriage rolls along a rail provided on a door frame, and the outer surface is convex or concave depending on the shape of the contacting rail.

An adjustment bolt is coupled to the lower side of the carriage, and a door is mounted on the head of the adjustment bolt.

Further, the damper is integrally provided inside the frame to support the door to guide the movement, and to play a role of buffering the impact when the door is opened and closed.

Since the above-mentioned carriage supports the heavy door and guides the movement, the maintenance work should be performed for a certain period of time. The most damage and wear in the car is the connection and the wheel supporting the door in the car.

Therefore, the above-described automatic-opening and shutting-off carriage has a problem that the entire carriage must be replaced.

In addition, in order to replace or repair the carriage, the carriage must be detached from the rail and the repair work must be performed from the outside.

It is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to provide a damper assembly in which a wheel support portion of a car is inserted into an insertion groove of a damper assembly, Thereby providing a railcar fastening structure.

According to an aspect of the present invention, there is provided a railcar fastening structure including a damper assembly installed inside a rail provided on a door frame and buffering an impact upon opening and closing a door, And an adjusting bolt fixing hole formed on an inner circumferential surface of the adjusting bolt and passing through the upper and lower portions of the knurled body, An adjusting bolt screwed to the fixing hole and having a door mounted on and fixed to one side thereof; a wheel support portion protruding in a shape corresponding to each other on both sides of the car body, one of which is received in the insertion groove of the damper assembly; A coupling hole formed in the wheel support portion so as to be circularly penetrated therethrough, and a through hole formed in the insertion groove, And a fastening member passing through the fastening hole and the fastening hole to fasten the coupling between the insertion groove of the damper assembly and the wheel supporting part.

A fixing protrusion is formed on the upper and lower surfaces of the insertion groove so as to protrude in a shape corresponding to the fixing groove, so that the fixing protrusion is formed on the upper and lower surfaces of the wheel supporting portion do.

And an auxiliary coupling protrusion formed so as to protrude in a circular ring shape is formed at a rim portion of the coupling hole and an auxiliary coupling protrusion is formed at a rim portion of the coupling hole to be recessed in a shape corresponding to the auxiliary coupling protrusion, And an engaging groove is further formed.

According to the present invention, there is provided a locking structure for a damper unit, comprising a locking protrusion formed in an insertion groove of a damper unit and a locking protrusion for locking the locker in an auxiliary coupling groove, the locking protrusion being inserted into a locking groove of the wheel support portion, Will be located exactly where it will be. Since the operator can easily engage the damper assembly with the damper assembly, the assembling workability of the damper assembly and the damper can be improved.

In addition, it is possible to prevent the parts breakage due to misassembly of the camshaft and the damper assembly, thereby improving the assembly failure rate and reducing the material cost due to the product defective ratio.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a partial cross-sectional view showing a configuration of a preferred embodiment of a raceway and a damper assembly mounted on rails of a door frame according to the present invention; Fig.
2 is an exploded perspective view showing a configuration of a preferred embodiment of a raceway and a damper assembly according to the present invention.
3 is a cross-sectional perspective view showing a configuration of a preferred embodiment of a raceway and a damper assembly according to the present invention.
4 is a cross-sectional view showing a configuration of a preferred embodiment of a cam follower structure according to the present invention;

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

Fig. 1 is a partial cross-sectional view showing a configuration of a preferred embodiment of a damper assembly mounted on a rail of a door frame according to the present invention.

As shown in FIG. 1, the door D will be described by taking a door called 'Chinese door' as an example. The door D is hung on the door frame F or moved left and right while the door frame F is supported by the door frame F. [

A rail (R) is installed at the upper end of the door (D). The rail R is provided on the inside or outside of the door frame F to guide the flow of the door D. As shown in the drawing, the rail R is opened downward to form a penetration portion 2. The penetration portion 2 is formed at a central portion of the lower end of the rail R. [

'형상을 가지며, 좌,우로 길게 형성된다. 그리고, 상기 레일(R)의 내부에는 댐퍼어셈블리(10)와 호차(40)가 결합된 상태로 구비되어 상기 도어(D)의 좌,우 이동을 가이드하며, 상기 도어(D)가 완전히 닫히는 순간에 댐퍼어셈블리(10)가 상기 도어(D)의 속도를 감속시켜 담힘시의 충격이 방지되며 소음 발생이 감소되도록 한다.More specifically, as shown in FIG. 1,

', And is formed long left and right. The damper assembly 10 and the carriage 40 are coupled to each other to guide the movement of the door D in the left and right directions while the door D is fully closed The damper assembly 10 decelerates the speed of the door D so as to prevent an impact when the door D is loaded and reduce noise generation.

FIG. 2 is an exploded perspective view showing a configuration of a preferred embodiment of a cam follower and a damper assembly according to the present invention. FIG. 3 is a sectional perspective view showing a configuration of a cam follower and a damper assembly according to a preferred embodiment of the present invention, Fig. 4 is a cross-sectional view showing a configuration of a preferred embodiment of the cam follower structure according to the present invention.

2 to 4, a damper assembly 10 is installed inside the rail R. As shown in FIG. The damper assembly 10 includes a case 12 and a damper unit 18 as shown in FIG.

The case 12 has a hollow hexahedron shape and is elongated in the left-right direction. As shown in FIG. 3, the case 12 is open at the top to form a through-hole 14. The through-hole 14 is formed at a central portion of the upper end of the case 12.

'형상을 가지며, 전,후로 길게 형성된다. 그리고, 상기 케이스(12)의 내부에는 상기 댐퍼유닛(18)이 설치되어, 외부의 충격으로 부터 상기 댐퍼유닛(18)을 보호한다.More specifically, as shown in FIG. 2,

', And is formed long before and after. The damper unit 18 is installed inside the case 12 to protect the damper unit 18 from an external impact.

Wheel insertion grooves 16 are formed on the left and right sides of the case 12. 2, the wheel insertion grooves 16 are recessed in a semicircular shape at the front and rear sides of the case 12 so that the damper wheels 20 and the arc wheels 62 Respectively.

That is, when engaging the cam body 40 with the damper assembly 10, the cam body 40 is coupled to the damper assembly 10 without separating the case 12 and the damper unit 18 from each other To be able to do.

A damper unit (18) is installed inside the case (12). The damper unit 18 is a general damper operated by pneumatic or hydraulic pressure, and a detailed description thereof will be omitted. The damper unit 18 is engaged with the door lock 40 to reduce the speed of the door D when opening and closing the door D to the door D connected to the door lock 40, .

A pair of damper wheels 20 are installed on the rear side of the damper unit 18. The damper wheel 20 is provided with a bearing 22 therein and is rotatably fixed to the damper unit 18 by a fixing pin 24. The damper wheel 20 rolls in the rail R to move the damper unit 18 in accordance with the movement of the door D.

An insertion groove 26 is formed on the front surface of the damper unit 18 as shown in FIG. The insertion groove 26 is formed to be recessed in a rectangular parallelepiped shape, and a wheel support portion 52 to be described below is inserted.

On the inner circumferential surface of the insertion groove 26, a fixing protrusion 28 is formed. As shown in FIG. 4, the fixing protrusions 28 are formed on the upper and lower surfaces of the insertion groove 26 so as to protrude in a semicircular shape. The fixing protrusion 28 is inserted into the fixing groove 54 of the wheel supporting portion 52 to be described below and fixes the wheel supporting portion 52.

A coupling hole (30) is formed on the center left and right sides of the insertion groove (26). The coupling hole 30 is formed in a circular shape and is formed on the right side of the damper unit 18. A coupling member 60 to be described below is inserted into the coupling hole 30 to firmly fix the wheel support portion 52 and the pair of arc wheels 62.

An auxiliary coupling groove 32 is formed in the inner edge of the coupling hole 30. The auxiliary engagement groove 32 is formed to be recessed in the shape of a circular ring along the rim of the engagement hole 30. An auxiliary coupling protrusion 58 to be described below is inserted into the auxiliary coupling groove 32 to prevent the wheel supporting portion 52 coupled to the inside of the insertion groove 26 from flowing left and right.

The damper assembly 40 according to the present invention is coupled to the damper assembly 10. The damper assembly 40 includes a dam body 42 to which a plurality of parts are coupled, An adjusting bolt fixing hole 44 formed with a screw thread and an adjusting bolt 46 screwed to the adjusting bolt fixing hole 44 and having a door D mounted and fixed to one side of the adjusting bolt fixing hole 44; A wheel supporting part 52 protruding from both sides and fastened to the insertion groove 26 of the damper assembly 10 and an upper and lower surfaces of the wheel supporting part 52, A fixing groove (54) in which a fixing protrusion (28) formed to protrude into the inside of the fixing groove (26) is fastened and fixed; .

The cam body 42 is formed in a hexagonal shape and supports a plurality of parts. An adjusting bolt fixing hole 44 is formed at the center of the knurl body 42. The adjusting bolt fixing hole 44 is formed so as to pass through the knurl body 42 in the upward and downward directions, and a thread is formed on the inner circumferential surface thereof. The adjusting bolt 46 is screwed and fixed to the adjusting bolt fixing hole 44.

An adjustment bolt 46 is coupled to the adjustment bolt fixing hole 44. The adjustment bolt 46 includes a cylindrical threaded portion 48 and a head portion 50 formed at the lower end of the threaded portion 48. A male screw is formed on the outer circumferential surface of the screw portion 48 and is screwed into the adjustment bolt fixing hole 44.

The coupling structure of the head portion 50 of the control bolt 46 and the door D is a general structure and a detailed description thereof will be omitted. The door D is mounted on the head 50 of the adjustment bolt 46 and the door D is supported by the adjustment bolt 46.

Wheel supporting portions 52 are formed on the front and rear surfaces of the knurl body 42. The wheel supporting portion 52 is formed to protrude from the front and rear surfaces of the knurl body 42. The wheel support portion 52 is integrally formed with the car body 42, and is formed to be narrower toward the forward and backward directions. The wheel support portion 52 is inserted and fixed to the insertion groove 26.

Fixing grooves 54 are formed on the upper and lower surfaces of the wheel support portion 52. The fixing groove 54 is formed to be recessed in a semicircular shape in the inner direction of the wheel support portion 52 as shown in FIG. The fixing protrusion 28 is inserted into the fixing groove 54 to fix the wheel supporting portion 52.

The wheel support portion 52 is inserted into the insertion groove 26 of the damper assembly 10 so that the fixing protrusion 54 is inserted into the fixing groove 54, And the wheel support portion 52 is fixed to the insertion groove 26 by inserting the wheel support portion 28 into the insertion groove 26. When the wheel support portion 52 is fixed, the coupling member 60 to be described below is inserted into the coupling hole 56 of the wheel support portion 52 so that the car 40 is fixed to the damper assembly 10 .

A coupling hole 56 is formed in a side surface of the wheel support portion 52. The fastening holes 56 are formed to pass through the center of the wheel support 52 in the left and right directions. The coupling hole 56 is coaxial with the coupling hole 30 and is firmly fixed to the damper assembly 10 by the coupling member 60 described below.

An auxiliary coupling protrusion (58) is formed at the rim of the coupling hole (56). The auxiliary coupling protrusion 58 has a circular ring shape and is formed to protrude by a predetermined height in the lateral direction. The auxiliary coupling protrusion 58 is inserted into the auxiliary coupling groove 32 of the damper unit 18 so that the coupling hole 56 of the wheel support portion 52 and the coupling hole 30 of the damper unit 18, Is fixed to be positioned on the coaxial line.

A fastening member (60) is provided inside the fastening hole (56). The fastening member 60 is formed in a cylindrical shape and the wheel support portion 52 is firmly fixed to the damper unit 18 by the fastening member 60.

A pair of arc-shaped wheels 62 are provided on the left and right sides of the fastening member 60. The arc-shaped wheel 62 is provided with a wheel bearing 64 therein. The coupling member 60 is inserted into a through-hole 66 formed to pass through the center of the wheel, and is rotatably fixed.

A gap retaining ring (68) is provided between the arc wheel (62) and the wheel support (52). The gap retaining ring 68 is formed in a circular ring shape and is fixed to the wheel support portion 52 by inserting the coupling member 60 therein. The gap retaining ring 68 is provided between the arc wheel 62 and the wheel support 52 so that the gap retaining ring 68 can be fixed to the door frame F in accordance with the width H of the rail R And serves to adjust the left and right spacing of the pair of arc wheels 62.

Hereinafter, the operation of the ratchet fastening structure of the present invention will be described with reference to FIGS. 1 to 4. FIG.

First, the case 12 is engaged with the outer circumferential surface of the damper unit 18. The case 12 is moved to the left in the right direction of the damper unit 18 and is coupled to the outer peripheral surface of the damper unit 18. [ The wheel support portion 52 formed on the rear surface of the race car body 42 is inserted into the insertion groove 26 formed in the front surface of the damper unit 18 when the mounting of the case 12 is completed.

When the wheel support portion 52 formed on the rear surface of the rake body 42 is inserted into the insertion groove 26, the wheel support portion 52 is inserted into the auxiliary engagement groove 32 formed on the left and right sides of the insertion groove 26, The auxiliary coupling protrusion 58 is inserted. The coupling hole 56 of the wheel support portion 52 is fixed to be coaxial with the coupling hole 30 of the insertion groove 26 by the coupling of the auxiliary coupling groove 32 and the auxiliary coupling projection 58. [ do.

When the wheel supporting portion 52 formed on the rear surface of the knurl body 42 is completely inserted into the insertion groove 26, the fixing grooves 54 formed on the upper and lower surfaces of the wheel supporting portion 52 A fixing protrusion 28 formed on the upper and lower surfaces of the insertion groove 26 is coupled to the insertion groove 26 to fix the wheel support 52 to the insertion groove 26.

That is, even when the coupling member 60 is not engaged, the fixing protrusions 28 of the insertion groove 26 and the fixing grooves 54 of the wheel supporting portion 52 are engaged with the damper unit 18, The position of the coupling hole 56 and the coupling hole 30 can be accurately fixed by the auxiliary coupling protrusion 58 and the auxiliary coupling groove 32 .

Therefore, the operator can easily fix the car 40 to the damper unit 18 by inserting the coupling member 60 into the coupling hole 30 and the coupling hole 56.

A pair of arc-shaped wheels 62 are provided on the left and right sides of the fastening member 60. A through hole 66 is formed at the center of the arc wheel 62. The through hole 66 is coaxially positioned with the coupling hole 30 and the coupling hole 56, And is fixed to the damper unit 18.

A wheel bearing 64 is mounted on the inner circumferential surface of the arc-shaped wheel 62 so as to be rotatably fixed to the damper unit 18.

When the coupling of the wheel support portion 52 formed on the rear surface of the tread body 42 is completed, the coupling member 60 and the tread wheel 62 are installed on the wheel support portion 52 formed on the front surface of the tread body 42 do.

The through hole 66 of the arc-shaped wheel 62 is positioned at a position coaxial with the fastening hole 56 of the wheel support portion 52 formed on the front surface of the arc-shaped body 42. Is positioned coaxially with the through hole (66) of the arc wheel (62) on both sides of the lock hole (56), and the lock wheel (60) is inserted to fix the arc wheel to be rotatable.

The operator can adjust the spacing of the pair of arc wheels 62 according to the width H of the rail R. [ In order to adjust the spacing of the pair of arc wheels 62, a spacing ring 68 is provided between the arc wheel 62 and the wheel support 52.

The gap holding ring 68 is formed in a circular ring shape and the coupling member 60 is coupled to the inside of the cavity holding ring 68 and fixed to the wheel support portion 52 like the arc wheel 62. The operator can use the gap holding ring 68 in addition to or depending on the width (H) of the rail (R).

The scope of the present invention is not limited to the above-described embodiments, and many other modifications will be possible to those skilled in the art based on the present invention.

10. Damper assembly 26. Insert groove
28. Fixing projection 30. Coupling hole
32. Auxiliary coupling groove 42. Lug body
44. Adjusting bolt fixing hole 44. Adjusting bolt
52. Wheel support 54. Fixing groove
58. Auxiliary coupling projection

Claims (3)

A damper assembly 10 installed in the rail R installed in the door frame F for buffering an impact upon opening and closing of the door and an insertion groove 26 formed in one side of the damper assembly 10 In the fastening structure of a railcar coupled to the inside,
A bladder body (42) to which a plurality of parts are coupled;
An adjusting bolt fixing hole 44 formed to penetrate the knurl body 42 up and down and having a thread on an inner circumferential surface thereof;
An adjusting bolt 46 screwed to the adjusting bolt fixing hole 44 and having a door D mounted on one side thereof;
A wheel support portion 52 protruding in a shape corresponding to each other on both sides of the knockout body 42 and one of which is received in the insertion groove 26 of the damper assembly 10;
A fastening hole 56 formed in the wheel support portion 52 so as to penetrate the wheel support portion 52 in a circular manner;
A coupling hole (30) formed in the insertion groove (26) and coaxial with the coupling hole (56);
And a coupling member 60 passing through the coupling hole 56 and the coupling hole 30 to fix the coupling between the insertion groove 26 of the damper assembly 10 and the wheel support 52, Tightening structure.
The method according to claim 1,
Fixing grooves 54 are formed on the upper and lower surfaces of the wheel support 52, respectively.
A fixing protrusion 28 is formed on the upper and lower surfaces of the insertion groove 26 so as to protrude in a shape corresponding to the fixing groove 54 and is fastened to the fixing groove 54. Tightening structure.
The connector according to claim 1, wherein a rim of the fastening hole (56)
An auxiliary coupling protrusion 58 formed to protrude in a circular ring shape is further formed;
At the rim of the coupling hole 30,
And an auxiliary coupling groove (32) formed to be recessed in a shape corresponding to the auxiliary coupling protrusion (58) and coupled with the auxiliary coupling protrusion (58).

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