KR20110116361A - Safety hinge using spring - Google Patents

Abstract

The present invention relates to a safety hinge using a spring, comprising: a safety hinge mounted on a case of a switchboard or an information and communication device to maintain a door at a predetermined angle when the door is opened; A fixing member fixed to the case and having one side formed with a hollow shaft tube; Molding member embedded in the shaft tube, the rotating shaft exposed to the upper and lower ends of the shaft tube, biaxially divided into the upper and lower springs and the upper and lower springs respectively inserted into the shaft tube, molding the upper spring and the lower spring and the rotating shaft to integrate Stopper assembly consisting of; It provides a safety hinge using a spring, characterized in that it comprises an upper cap and a lower cap are assembled and fixed to both ends of the rotating shaft exposed to the upper and lower ends of the shaft tube.
According to the present invention, the structure of the safety hinge is simple and simple, it is easy to assemble, the manufacturing cost can be reduced, the safety is improved, and the effect of maintaining a clean appearance quality can be obtained.

Description

Safety Hinges with Springs {SAFETY HINGE USING SPRING}

The present invention relates to a safety hinge using a spring, and more particularly, it is possible to prevent the door from being closed irrespective of the user's intention by preventing the door from being opened any more by opening the door at a certain angle. Safety hinges used in case of switchboard or telecommunication equipment.

In general, the hinge (Hinge) is composed of a structure of a fixed plate including a movable plate fixed to the door to rotate, and a rotating shaft fixed to the door frame to rotate the movable plate, wherein the hinge simply rotates the movable plate about the rotation axis It is mainly used to open the door.

However, in recent years, the hinge is provided with a stopper device so that the door can be stopped at a certain angle so that the door closes abruptly during work, thereby preventing the safety accident to prevent work or impinge on a part of the worker's body. It is becoming.

These safety hinges are released in various forms with adjustable angles and are used for safety hinges in many fields. Most of them have a complicated structure and are expensive.

In addition, since the stopper device is installed on the exterior of the hinge, the exterior is not beautiful and there is a disadvantage in that the repair work must be frequently performed due to foreign substances such as dust when used for a long time.

As a part of supplementing this, Utility Model Registration No. 0357136 has been disclosed. However, there is a drawback that the process efficiency has not been achieved in the manufacturing and assembly process of the hinge.

As another example, Patent No. 0766010 has been disclosed that implements a stopper function by using a friction force through a plurality of washers.

However, although the disclosed technology has the advantage of improving the appearance quality and maximizing the stopper function, the disadvantages of low working efficiency and increased cost due to the complicated internal structure still remain.

The present invention was created in view of the above-mentioned problems in the prior art as described above, and implements a simple and simple structure of the safety hinge, while ensuring the maximum safety of the operator by preventing the closing of the door due to increased frictional force, Its main purpose is to provide a safety hinge using a spring that can reduce manufacturing costs while achieving ease of manufacture.

The present invention is a means for achieving the above object, the safety hinge which is mounted on the case of the switchboard or information and communication equipment to maintain the door at a certain angle when the door is opened; A fixing member fixed to the case and having one side formed with a hollow shaft tube; Molding member embedded in the shaft tube, the rotating shaft exposed to the upper and lower ends of the shaft tube, biaxially divided into the upper and lower springs and the upper and lower springs respectively inserted into the shaft tube, molding the upper spring and the lower spring and the rotating shaft to integrate Stopper assembly consisting of; It provides a safety hinge using a spring, characterized in that it comprises an upper cap and a lower cap are assembled and fixed to both ends of the rotating shaft exposed to the upper and lower ends of the shaft tube.

At this time, the upper spring and the lower spring is characterized in that the spiral direction is disposed opposite each other.

In addition, the molding member is characterized in that the acetal or polycarbonate which is one of the thermoplastic resins.

In addition, the frictional force of the rotating shaft is characterized in that it is adjusted by varying the thickness, the number of turns (bare), the length of the upper spring and the lower spring.

In addition, the cross section of the upper spring and the lower spring is characterized in that the circular or polygonal.

According to the present invention, the structure of the safety hinge is simple and simple, it is easy to assemble, the manufacturing cost can be reduced, the safety is improved, and the effect of maintaining a clean appearance quality can be obtained.

1 is an exploded perspective view of an exemplary safety hinge in accordance with the present invention.
2 is an assembled perspective view of the safety hinge according to the present invention.
3 is a cross-sectional view taken along the line AA of FIG. 2.
4 is a sectional view taken along line BB of Fig.

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

Safety hinge according to the present invention is mainly mounted on the case of the switchboard or information and communication equipment to keep the door at a certain angle when opening the door so that it does not close easily can smoothly and easily work required by the operator without interference of the door To make sure.

In particular, a stopper having sufficient frictional force on the rotating shaft is provided to prevent the door from being closed without regard to the intention of the operator during the operation.

More specifically, as shown in Figure 1, the safety hinge according to the present invention includes a fixing member (100).

The fixing member 100 is a body of the safety hinge, is fixed to the side of the case (not shown) of the switchboard or information and communication equipment.

In addition, one side of the fixing member 100 is integrally formed with a hollow tube 110 inside.

At this time, the lower portion of the shaft tube 110 is opened, the upper portion of the shaft hole 112 is formed so that the rotary shaft 130 is fitted, the rest has a closed structure.

On the other hand, as shown in Figures 1 to 4, the shaft member 110, the molding member 120, the rotating shaft 130, the upper spring 140 and the lower spring 150 is integrated with one stopper to form a body The assembly S is inserted.

Here, in FIG. 1, only the molding member 120, the rotation shaft 130, the upper spring 140, and the lower spring 150 are shown separately from each other for convenience of description, and these are the upper spring 140 on the rotation shaft 130. And molded into the molding member 120 in a state in which the lower spring 150 is fitted to form an integrated body having one body.

In this case, the molding member 120 is made of acetal or polycarbonate (PC), the upper end 132 and the lower end 134 of the rotating shaft 130 maintains the state exposed to the molding member 120 outside do.

In this case, the molding member 120 is formed of acetal or polycarbonate because the thermoplastic resins have less compression deformation and maintain an expanded state at room temperature, so that the upper spring 140 and the lower spring 150 are disposed on the rotating shaft 130. This is because the contact is as close as possible to maximize the friction force, thereby effectively achieving the desired stopping function.

In particular, the upper end 132 and the lower end 134 is formed in the longitudinal direction of the sawtooth irregularities of the rotary shaft 130, the upper cap 170 and the lower cap 180 to be described later to be fitted in engagement with the irregularities The rotating shaft 130 and the upper cap 170 and the lower cap 180 is preferably configured to be rotated together.

In addition, the upper spring 140 and the lower spring 150 is arranged so that the spiral direction is opposite to each other up and down so that the rotational torque by the elastic always zero base regardless of the rotation direction of the rotation shaft 130 It is more preferably configured to maximize the stopping of the rotating shaft 130 to be made.

In addition, the upper spring 140 and the lower spring 150 may have a circular cross section or a polygon such as a rectangle.

This is because the contact area in contact with the rotating shaft 130 is different depending on the cross-sectional shape can induce a change in the friction force.

In addition, the open lower end of the shaft tube 110 is closed by the sealing member 160, in which the same shaft hole 162 as the shaft hole 112 described above is formed in the sealing member 160 to rotate the shaft 130 The top 132 and the bottom 134 of each guides to pass through.

In addition, the upper cap 170 and the lower cap 180 are assembled to the upper end 132 and the lower end 134 of the rotating shaft 130 penetrating the shaft holes 112 and 162, respectively, so that the safety hinge of the present invention is constructed.

The safety hinge of the present invention made in this configuration is molded in a state in which the molding member 120 constituting the stopper assembly S is molded in the state in which the upper spring 140 and the lower spring 150 are fitted to the rotation shaft 130. Each of the upper spring 140 and the lower spring 150, as well as the gap except for the portion where the rotary shaft 130 is in contact with each other, has a structure filled by the molding member 120.

Therefore, when the rotating shaft 130 rotates in such a state, the rotating shaft 130 causes extreme friction with the upper spring 140 and the lower spring 150, thereby preventing free rotation of the rotating shaft 130.

In addition, since the molding member 120 is further expanded by heat generated by friction, the upper spring 140 and the lower spring 150 and the rotation shaft 130 are further in close contact with each other to rotate the rotation shaft 130. It will keep the degrees of freedom close to zero.

As a result, the stopper assembly (S) according to the present invention has a very simple and simple structure, but performs a very efficient and effective stopper function, so that the safety hinge employing such a structure is closed when the door is not desired by the operator. It is possible to prevent safety accidents that occur in advance.

Furthermore, as described above, since the upper spring 140 and the lower spring 150 are opposite to each other in a spiral direction, the mutually staggered sides always elastically tighten and loosen regardless of the rotation direction of the rotation shaft 130, so that the rotation shaft is naturally 130) The impact force is zero, but acts to maximize the frictional force with the rotating shaft 130.

In addition, in the present invention, the friction force of the rotating shaft 130 can be freely adjusted by varying the thickness, the number of turns (barrel), the length of the upper spring 140 and the lower spring 150.

Through this, it is possible to provide an efficient safety hinge having an uncomplicated structure and having an effect equal to or greater than that of the safety hinge disclosed so far.

100: fixing member 110: shaft pipe
120: molding member 130: rotating shaft
140: upper spring 150: lower spring
160: sealing member 170: upper cap
180: lower cap

Claims (5)

In the safety hinge that is attached to the case of the switchboard or information and communication equipment to maintain the door at a certain angle when opening the door;
A fixing member fixed to the case and having one side formed with a hollow shaft tube;
Molding member embedded in the shaft tube, the rotating shaft exposed to the upper and lower ends of the shaft tube, biaxially divided into the upper and lower springs and the upper and lower springs respectively inserted into the shaft tube, molding the upper spring and the lower spring and the rotating shaft to integrate Stopper assembly consisting of;
Safety hinge using a spring, characterized in that it comprises an upper cap and a lower cap are assembled and fixed to both ends of the rotating shaft exposed to the top and bottom of the shaft tube, respectively. The method according to claim 1;
The upper spring and the lower spring is a safety hinge using a spring, characterized in that the spiral direction is disposed opposite each other. The method according to claim 1;
The molding member is a safety hinge using a spring, characterized in that one of the thermoplastic resin, acetal or polycarbonate. The method according to claim 1;
The friction force of the rotating shaft is a safety hinge using a spring, characterized in that the adjustment of the thickness, the number of turns (bare), the length of the upper spring and the lower spring variable. The method according to claim 1;
Cross section of the upper spring and the lower spring is a safety hinge using a spring, characterized in that the circular or polygonal.

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