KR100296027B1 - Hinge assembly for rack door - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge device for a rack door in a communication system. The disclosed hinge device is a cabinet-type rack for a communication system which is opened and closed by a rack door. A housing including a first mounting hole having two steps; (b) the hinge protrusion at the uppermost end, a locking portion larger than the diameter size of the hinge protrusion below the hinge protrusion, a guide extending below the locking portion, a fastening portion extending at the lower end of the guide, and the fastening portion A hinge pawl having limited vertical movement in the first mounting hole, including a first fastening hole formed in a vertical direction; (c) a compression coil spring placed between the locking portion and the second step; (d) a handle having a second mounting hole into which the fastening part is inserted, a handle extending to one side, and a second fastening hole communicating vertically with the second mounting hole; And (e) fastening means for holding the hinge pole by penetrating the first fastening hole of the fastening part and the second fastening hole of the handle in a horizontal direction to perform a stable hinge function.

Description

Hinge ASSEMBLY FOR RACK DOOR

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to racks for communication systems (including private exchanges, transmitters and wireless communication devices, etc.), and more particularly to hinge assemblies for attaching and detaching doors of cabinet-type racks.

As shown in FIG. 1, in the rack for a conventional communication system, an upper frame 110 (top frame) and a lower frame 120 (bottom frame) are supported on a side panel 130 to form a basic skeleton. It was a constitution. In this case, the rack 140 is detachably installed while the door 140 is opened and closed, and the hinge device 200 having a hinge function on the square corners A, B, C, and D to support the rack door 140 is provided. It was the structure fastened by the screw S. The rack door 140 was easily detached from the upper frame 110 or the lower frame 120 by the hinge device 200.

As shown in FIG. 2, the hinge device 200 of the rack door according to an exemplary embodiment includes a metallic housing 210, a hinge shaft 220 installed to penetrate the housing, and the housing 210. ) Is installed between the hinge shaft 220 and the compression coil spring 230 to provide an elastic force, the handle 240 placed below the housing 210, and the hinge shaft 220 is coupled to the hinge shaft ( 220 and a fastening screw 250 for restraining the handle 240. The housing 210 has a mounting hole 211 extending in the vertical direction, and fastening holes 2101 are formed at both sides to fix the rack door, and the mounting hole 211 has a first step 2102 (FIG. The configuration shown in FIG. 3A and the second step 2103 (shown in FIG. 3A) are formed. The hinge shaft 220 has a locking portion 2201 on the upper portion, and has an insertion groove 2202 for inserting a hinge 111 (shown in FIG. 3A) protruding from the upper frame on the upper surface of the locking portion. . In addition, the guide 2203 extends below the locking portion 2201. In addition, the hinge shaft 220 has a fastening hole 2104 (shown in FIG. 3A) for fastening with the screw on the bottom surface of the guide. The compression coil spring 230 is installed between the housing 210 and the hinge shaft 220, and more specifically, the compression coil spring 230 is between the engaging portion 2201 and the second step 2103. And supports the hinge shaft 220.

The handle 240 has a fastening hole 241 extending in the vertical direction, the handle 242 is configured to extend to one side. Finally, as the fastening screw 250 is coupled to the fastening hole 2104 of the hinge shaft via the hole 241 of the handle, one hinge assembly is completed. The components of such a hinge device have a fastening force in the vertical direction.

Referring to Figures 3a and 3b the operation of the conventional hinge device as follows. 3A shows the hinge device with the rack door mounted on the system, and FIG. 3B shows the operation of the hinge device for removing the rack door from the system.

In the state where the rack door is mounted in the system, the hinge protrusion 111 of the upper frame 110 is inserted into the insertion hole 2202 of the hinge shaft, and the compression coil spring 230 is the locking portion 2201. ) And the second step 2103 to provide a force to push the hinge shaft 230 upwards. Therefore, the hinge protrusion 111 is not released from the insertion groove 2202 unless a forcing force is applied to the hinge shaft.

On the other hand, when holding the handle 242 and forcibly lowered in the direction of the arrow to detach the rack door from the communication system, the insertion groove 2202 is separated from the hinge protrusion 111, the rack door is separated from the communication system. At this time, the compression coil spring 230 is placed between the first step 2102 and the second step 2103 in a state where the handle 242 is strongly pulled, and has the strongest compression force.

However, the hinge device that separates the rack door in the communication system by this operation has the following problems. Conventional hinge devices have a structure in which a fastening screw is coupled and fixed from the bottom side, but loosening of the screw is frequently performed because the fastening direction and the rotation direction of the rack door are directed in a vertical direction to fix the fastening screw to the hinge shaft. There was a problem that the rack door is separated from the communication system. In addition, when the conventional hinge assembly is mounted on the rack door, the phenomenon of loosening or detachment occurs even during earthquake or vibration test.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a hinge device for a rack door that can be strongly resistant to shock or vibration and rotational operation of the rack door.

In order to achieve the above objects, the present invention provides a cabinet-type rack for a communication system that is opened and closed by a rack door,

(a) a housing including a first mounting hole having a first step and a second step shortened from the first step;

(b) the hinge protrusion at the uppermost end, a locking portion larger than the diameter size of the hinge protrusion below the hinge protrusion, a guide extending below the locking portion, a fastening portion extending at the lower end of the guide, and the fastening portion A hinge pawl having limited vertical movement in the first mounting hole, including a first fastening hole formed in a vertical direction;

(c) a compression coil spring placed between the locking portion and the second step;

(d) a handle having a second mounting hole into which the fastening part is inserted, a handle extending to one side, and a second fastening hole communicating vertically with the second mounting hole; And

(e) a fastening means for holding the hinge pole by penetrating the first fastening hole of the fastening part and the second fastening hole of the handle in a horizontal direction.

1 is a front view showing a state in which a hinge device is installed on a door of a rack according to a conventional embodiment.

Figure 2 is an exploded perspective view showing a hinge device according to a conventional embodiment.

3A and 3B are cross-sectional views illustrating the operation of a hinge device for attaching and detaching a rack door according to an exemplary embodiment.

Figure 4 is a front view showing a state in which the hinge device is installed on the door of the rack according to an embodiment of the present invention.

Figure 5 is an exploded perspective view showing a hinge device according to an embodiment of the present invention.

6 is a perspective view showing the assembled hinge device according to an embodiment of the present invention.

7a and 7b are cross-sectional views showing the operation of the hinge device for attaching and detaching the rack door according to an embodiment of the present invention.

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

1: Housing 2: Hinge Pole

3: Compression Coil Spring 4: Handle

5: fastening means 110: upper frame

120: lower frame

Hereinafter, with reference to the accompanying drawings will be described in detail the most preferred embodiment of the present invention. First, in describing each of the drawings, only the same components have the same reference numerals as much as possible even if shown on different drawings. In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

4 is a front view showing a rack of the communication system of the present invention. Referring to the drawings, the rack for the communication system was a configuration that the upper frame 110 (top frame) and the lower frame 120 (bottom frame) is supported on the side panel 130 to form a basic skeleton. At this time, the rack 140 (rack door) is detachably installed in the rack, the hinge device 10 that functions as a hinge function on the square corners (A, B, C, D) to support the rack door 140. ) Is a configuration in which the screw (S) is fastened. The rack door 140 may be easily detached from the upper frame 110 or the lower frame 120 by the hinge assembly 10. Typically, such a cabinet-type rack has a built-in motherboard including various circuit components therein.

5 and 6, the configuration of the hinge device 10 according to an embodiment of the present invention to rotatably support the rack door, and to be detachable from the communication system as follows.

Rack door hinge device 10 of the present invention is a housing (1) (housing), a hinge pole (2) (hinge pole) which is assembled to penetrate perpendicularly to the housing, and is interposed between the housing and the hinge pole The compression coil spring 3, the handle 4 (handle) located in the lower portion of the housing 1, the hinge pawl 2 and the handle 4 is fastened to hold the hinge pole 4 Means (5).

The housing 1 is formed with a first mounting hole 11 extending in the vertical direction so that the hinge pole 2 is placed, and fastening holes 12 for installing in the rack door on both outer sides thereof are formed. Furthermore, the reinforcement part 13 protrudes along the circumference of the first mounting hole 11 formed in the upper surface of the housing.

The hinge pawl 2 has a hinge protrusion 21 positioned at the top thereof, and a cylindrical locking portion 22 larger than the diameter of the hinge protrusion 2 is positioned below the hinge protrusion, and has a cylindrical lower portion at the lower side of the hinge protrusion. The guide 23 extends, and a fastening portion 24 having a rectangular cross section is positioned at the end of the guide 23. In the fastening part 24, a fastening hole 25 through which the fastening means 5 passes extends in the horizontal direction. At this time, the hinge protrusion 21 is hemispherical.

The handle 4 is integrally fixed to the hinge pole 2 by the fastening means 5, the second mounting hole 41 and the fastening means 5 through which the fastening portion 24 of the hinge pole is placed. It has a fastening hole 42. Furthermore, the handle 4 is extended to the handle 43 to one side.

According to the assembly sequence of the components, the hinge pole 2 with the compression coil spring 3 wrapped in the guide 23 is inserted into the first mounting hole 11 of the housing, and the upper portion of the hinge pole is strongly After pressing, one assembly is completed by inserting the fastening portion 24 of the hinge pole into the second mounting hole 41 of the handle and fastening the fastening means 5 to the fastening holes 25 and 42. The fastening means 5 penetrates horizontally through the fastening portion 24 and the handle 4 of the hinge pole.

As a result, while the hinge pawl 2 is supported by the compression coil spring 3, it moves in the first mounting hole 11, and the force generated by the shankdong of the hinge pole 2 It acts perpendicular to the fastening means (5).

Looking at the operation of the hinge device with reference to Figures 7a and 7b as follows. First, referring to FIG. 7A, the first mounting hole 11 of the housing will be described in detail as follows. The housing has a first mounting hole 11 extending in the vertical direction, and the first mounting hole includes a first step 14 and a second step 15 stepped from the first step 14. do. From the upper surface of the housing to the first step 14 is a space in which the locking portion 22 is moved, and the compression coil spring 3 is placed and compressed to the locking portion 22 and the second step 15. Or a space to be tensioned.

As shown in FIG. 7A, when the hinge device is mounted to the rack door, the hinge protrusion 21 is inserted into the hinge groove 115 formed in the upper frame, and the compression coil spring 3 is In its most tensioned state, the handle 4 remains in contact with the bottom surface of the housing 1.

As shown in FIG. 7B, when the handle 4 is pulled in the direction of the arrow to detach the rack door from the communication system, the hinge protrusion 21 is detached from the hinge groove 115 and the locking portion 22 is closed. Moves until it makes contact with the first step 14. When the engaging portion 22 is in contact with the first step 14, the compression coil spring 3 maintains the most compressed state. At this time, the compression coil spring 3 is located between the first step 14 and the second step 15. On the other hand, the handle 4 is away from the housing 1. In addition, when the force applied to the handle 4 is removed, the state is as shown in Fig. 7A. By repeating these operations, the rack doors can be easily separated from the communication system, and are not affected by earthquakes, shocks, vibrations, and the rotation of the rack doors.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but it will be apparent to those skilled in the art that various modifications are possible without departing from the scope of the present invention.

As described above, in the rack for a communication system, the present invention provides a hinge device that is easily detachable from the communication system, and is not affected by vibration or shock and rotational operation of the rack door.

Claims (3)

In a cabinet rack for a communication system that is opened and closed by a rack door, (a) a housing including a first mounting hole having a first step and a second step shortened from the first step; (b) the hinge protrusion at the uppermost end, a locking portion larger than the diameter size of the hinge protrusion below the hinge protrusion, a guide extending below the locking portion, a fastening portion extending at the lower end of the guide, and the fastening portion A hinge pawl having limited vertical movement in the first mounting hole, including a first fastening hole formed in a vertical direction; (c) a compression coil spring placed between the locking portion and the second step; (d) a handle having a second mounting hole into which the fastening part is inserted, a handle extending to one side, and a second fastening hole communicating vertically with the second mounting hole; And (e) a hinge device of a rack door, comprising fastening means for holding the hinge pole by penetrating the first fastening hole of the fastening part and the second fastening hole of the handle in a horizontal direction. The method of claim 1, The fastening means is rod-type, the hinge device of the rack door, characterized in that provided with a fastening portion such as a thread. The method of claim 1, The hinge protrusion of the rack door, characterized in that the hemispherical shape.