KR200357309Y1 - Free hinge for a door - Google Patents

Abstract

A free hinge for a door is disclosed, in which the number of parts is significantly reduced and elasticity is adjustable. The free hinges for the doors are each provided with fixed hinge portions at both sides of the hinge installation member. Both sides of the hinge installation member are rotatably installed by each of the hinge members formed integrally with the first and second rotating members, and inside each hinge portion there is an elastic member for imparting elasticity to the first and second rotating members. It is installed in combination with the hinge member. The hinge members are inserted into the hinge parts so as not to be exposed to the outside. Each of the hinge members is provided with a plurality of adjustment holes for controlling the elastic force of the elastic member by adjusting the rotation angle of the hinge member. In order to control the elasticity of the elastic member by using the adjustment holes, the fixing member is inserted into the adjustment hole corresponding to the insertion hole among the adjustment holes after the hinge member is rotated at a predetermined angle. This maintains the angle adjustment state of the hinge member is to control the elasticity of the elastic member.

Description

Free hinge for door {FREE HINGE FOR A DOOR}

The present invention relates to a free hinge for a door, and in particular, a hinge installation member and a hinge member for rotationally supporting each rotating member in a hinge that enables bilateral opening and closing of the door. By doing so, the structure of the free hinge can be simplified and the assembly can be made easily, and the present invention relates to a free hinge for a door that can arbitrarily adjust the elasticity of the elastic member.

In general, the free hinge for the door, such as a theater, a church, a bar, can be open in both directions without difficulty, and is configured to perform a closing operation by its elasticity after being opened. That is, it is a hinge capable of bidirectional operation.

Such a free hinge according to the related art is formed by bending both sides of the fixing plate 1 to face each other, as shown in FIG. 7, to form the hinge portion 1-1, and then to the hinge portions 1-1 on both sides. Rotating plates (2, 3) are combined by the hinge shaft (4), respectively. In addition, each hinge shaft 4 is provided with an elastic member 5 together with the support shaft 5-1 for elastically supporting the respective rotary plates 2 and 3.

Therefore, when one rotating plate 2 is fixed to the door frame (not shown) and the other rotating plate 3 is fixed to the door (not shown), and then the door is pushed in one direction to open, the elastic member 5 The door is closed while the rotary plate 3 installed on the door side is returned to its original state by the elastic force. That is, opening and closing in both directions is possible.

However, since the free hinge according to the prior art having such a structure is formed by bending both sides of the fixing plate 1 in a direction facing each other as shown in FIG. 7 to form the hinge portion 1-1, the hinge shaft ( Part of 4) has been exposed to the outside.

That is, since the hinge forming portions of the rotating plates 2 and 3 were installed between the hinge portions 1-1 of the fixed plate 1 and fixed to the hinge shafts 4, a part of the hinge shafts 4 was moved to the outside. It was being exposed, which caused a problem that the hinge shaft (4) can be damaged by external forces.

In addition, the inner hinge shaft 4-1 is coupled to the support shaft 5-1 of the elastic member 5 and the outer hinge shaft coupled to the inner hinge shaft 4-1. There was a problem with a complex configuration divided into 4-2).

On the other hand, since the free hinge according to the prior art is configured as a structure that can not adjust the elasticity of the elastic member 5 to generate a rotational return elasticity as needed, it is increased to the fatigue by operating unnecessarily strong return elasticity, An increase in fatigue caused the problem of breakage of each component easily.

The present invention has been devised to solve the problems of the prior art as described above, the technical problem of the present invention can be made easy to assemble because the structure is simple, the manufacturing cost can be reduced by reducing the number of parts, the hinge It is to provide a means to prevent the phenomenon that the shaft is built in and damaged by an external force.

Another technical problem of the present invention is to provide a means for adjusting the rotational return elasticity of the elastic member to close itself again after the door is opened.

1 is a partially exploded perspective view showing a free hinge for a door according to the present invention.

Figure 2 is a perspective view of the coupled state of the free hinge shown in FIG.

3 is a front sectional view of the free hinge shown in FIG.

4 is a plan sectional view of the free hinge shown in FIG.

Figure 5a.5b is a plan view of the operating state of the free hinge shown in FIG.

6 is a partially enlarged view showing a state in which the angle of the hinge member shown in FIG. 1 is adjusted.

Figure 7 is a perspective view showing a free hinge for a door according to the prior art.

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

10: hinge mounting member 12A, 12B: fixed hinge portion

14A, 14B, 24, 34: insertion hole 20, 30: 1st and 2nd rotation member

22,32: rotating hinge part 50A, 50B: elastic member

60A, 60B: Hinge member 62: fixing pin

64A, 64B: Tool combination groove 66A, 66B: Adjuster

68A, 68B: Mounting groove 70: Friction reducing member

The present invention for solving the above technical problem is a hinged installation member formed in each of the fixed hinge portion of the hollow type on each side; First and second rotating members each having a rotating hinge portion engaged with each of the fixed hinge portions formed at both sides of the hinge installation member; An elastic member inserted into and installed in the fixed hinge portion on the first rotating member side and in the rotating hinge portion of the second rotating member, respectively; And it is inserted into each of the fixed hinge portion and the rotating hinge so as not to be exposed to the outside, and consists of two pairs coupled to both ends of each of the elastic members therein, one pair of fixed hinges on one side by the respective fixing pins The hinge is coupled to each of the branch and the rotating hinge, the other pair is a hinge member coupled to the fixed hinge portion and the rotating hinge portion of the other side by each of the other fixed pin; provides a free hinge of the door comprising a do.

At this time, the installation grooves are formed on the outer periphery of each hinge member, and each of the installation grooves is characterized in that the friction reducing member is installed.

On the other hand, the free hinge according to the present invention is provided with an elastic adjustment means for adjusting the elasticity of the elastic member, the elastic adjustment means, each insertion hole formed in each of the fixed hinge portion and each rotating hinge portion; A plurality of adjustment holes radially formed on each hinge member to selectively match the insertion holes to be inserted into the fixing pins; And a tool coupling groove formed at one end of each hinge member to adjust elasticity by rotating the hinge member coupled to each elastic member with a tool.

Thus, each hinge member for supporting the rotation of the hinge installation member and each rotating member is inserted into the fixed hinge portion and the rotating hinge portion so that the hinge member is not exposed to the outside and thus the hinge member is damaged by external force to prevent the hinge from operating. The disadvantageous phenomenon can be prevented.

In addition, since each hinge member is integrally formed and coupled to the elastic member in the rotating hinge portion and the fixed hinge portion, separate parts such as a support shaft for supporting the elastic member can be deleted.

On the other hand, it is possible to adjust the elasticity of the elastic member because it is possible to fix the rotation angle by rotating each of the hinge members coupled to both ends of the elastic member. In other words, the elasticity of the elastic member generates rotational resilience when the door is closed again after opening. The tool is coupled to the tool coupling groove of the hinge member to rotate at an angle to adjust the elasticity of the elastic member. It will be able to adjust the closing and opening elasticity randomly.

When described in detail with reference to the accompanying drawings a preferred embodiment of the present invention as follows.

1 is an exploded perspective view of a free hinge for a door according to a preferred embodiment of the present invention, Figure 2 is a perspective view of the coupling state, Figure 3 and Figure 4 is a cross-sectional view of the coupling state. Hereinafter, reference numeral 80 denotes a door frame, and 90 denotes a door.

As shown in FIGS. 1 to 4, the free hinge for the door includes a hinge installation member 10 having fixed hinge portions 12A and 12B formed at both sides thereof, and a first hinge formed to engage the fixed hinge portions 12A and 12B. Rotating support for elastic members (50A, 50B), the first and second rotating members (20, 30), the first and second rotating members (20, 30), the first and second rotating members (20, 30) to provide rotational elasticity Is installed in the hinge member (60A, 60B) for reducing the friction is composed of a member (70).

Looking at this in more detail as follows.

The hinge installation member 10 is formed such that the first and second rotation members 20 and 30 installed on the door frame 80 and the door 90 have elasticity and are rotatably installed, and have cylindrical hinges on both sides. Branches 12A and 12B are formed with different lengths.

The fixed hinge portion 12A of one side is formed in a cylindrical shape at the center of one side of the hinge installation member 10, and the fixed hinge portion 12B of the other side is cylindrical at the upper and lower sides of the hinge installation member 10, respectively. It is formed as.

In this case, each of the fixed hinge parts 12A and 12B is formed by bending a portion of the hinge installation member 10 in a cylindrical shape, and is formed by bending in opposite directions. In addition, insertion holes 14A and 14B are drilled in each of the fixed hinge portions 12A and 12B, respectively.

The first and second rotating members 20 and 30 are respectively installed in the door frame 80 and the door 90, and rotate to be engaged with each of the fixed hinge parts 12A and 12B on one side thereof. Hinge portions 22 and 32 are formed, respectively, and a front surface has a structure in which a plurality of screw holes are formed. The shape or length of each of the rotary hinge parts 22 and 32 is satisfied if it is formed to engage each of the fixed hinge parts 12A and 12B.

The first rotating member 20 according to the present embodiment has a cylindrical rotary hinge portion 22 having the same size (diameter) as the fixed hinge portion 12A of one side on the upper and lower portions except the central portion of one side. It is formed as. Therefore, the fixed hinge portion 12A of the hinge installation member 10 is positioned between the rotary hinge portions 22. That is, it has a structure that meshes with each other.

The second rotating member 30 is formed integrally with the cylindrical rotating hinge portion 32 having the same size (diameter) as the fixed hinge portion 12B of the other side in the central portion on one side. Thus, the rotary hinge 32 is located between the fixed hinge 12B. That is, they have a structure that is joined to each other.

At this time, the shape of the rotating hinge portion 22, 32 and the shape of each of the fixed hinge portion (12A, 12B) of the first and second rotating members (20, 30) is not limited to the present embodiment, the structure is engaged with each other It can be variously changed.

In addition, insertion holes 24 and 34 are drilled in the rotary hinge portions 22 and 32, respectively.

The elastic members 50A and 50B give rotational elasticity to the hinge members 60A and 60B so that the first and second rotation members 20 and 30 are rotated while overcoming elasticity and then returned to their original state by elasticity. To this end, it consists of a coil spring or a torsion spring.

Each of the elastic members 50A and 50B is installed inside the fixed hinge portion 12A on the side of the first rotating member 20 and inside the rotating hinge portion 32 of the second rotating member 30.

Each of the hinge members 60A and 60B is inserted into the rotary hinge portion 22 and the fixed hinge portion 12A on one side of the first rotating member 20 and coupled to both ends of the elastic member 50A installed therein. A pair of hinge members (60A), the rotary hinge portion 32 of the second rotary member 30 and the fixed hinge portion (12B) of the other side is inserted into and coupled to both ends of the elastic member (50B) installed therein It consists of a pair of hinge members (60B).

That is, a pair of hinge members 60A functioning as shafts at the boundary between the upper and lower rotating hinge portions 22 of the first rotating member 20 and the upper and lower fixed hinge portions 12A on one side, and the second It consists of a pair of hinge members (60B) that functions as an axis at the boundary between the upper and lower rotary hinge portion 32 of the rotary member 30 and the upper and lower fixed hinge portion (12B) of the other side.

On the outer circumference of each of the hinge members 60A and 60B, a plurality of control holes 66A and 66B are formed radially at right angles to the longitudinal direction, respectively, and tool coupling grooves 64A and 64B are respectively formed at one end surface thereof. Has a formed structure.

In addition, installation grooves 68A and 68B are formed in a part of the outer circumference of each of the hinge members 60A and 60B, and the friction reduction members 70 made of synthetic resin or the like are installed in the installation grooves 68A and 68B, respectively. . The friction reducing member 70 is preferably formed in a ring shape with one side open. The friction reducing member 70 minimizes a phenomenon in which each of the hinge members 60A and 60B directly contacts the fixed hinge portions 12A and 12B or the rotating hinge portions 22 and 32, and absorbs vibration to damage the friction. And minimize noise.

Each of the hinge members 60A and 60B is installed as shown in FIG. 4. That is, the pair of hinge members 60A are inserted into each of the rotary hinge portions 22 of the first rotating member 20, and a part thereof is positioned at a boundary with the fixed hinge portion 12A on one side, and fixed on one side. The hinge portion 12A is fitted to both ends of the elastic member 50A, respectively. And the hinge member (60A) located on the lower side is coupled to the fixed hinge portion 12A on one side by one fixing pin (62), the hinge member (60B) on the upper side is made by the other fixing pin (62) It is coupled to the rotary hinge portion 22 of the one rotating member (20).

At this time, the coupling is completed by inserting the fixing pin 62 after matching the respective insertion hole (14A, 24) and each control hole (66A).

On the other hand, the other pair of hinge members (60B) are inserted into each of the fixed hinge portion (12B) of the other side, a part of which is located at the boundary with the rotary hinge portion 32 of the second rotary member (30) In the rotary hinge portion 32 is fitted to both ends of the elastic member (50B), respectively.

And the hinge member (60B) located on the lower side is fixed to the fixed hinge portion 12B of the other side by one fixing pin 62, the hinge member (60B) located on the upper side by the other fixing pin 62 It is fixed to the rotation hinge portion 32 of the second rotating member (30). That is, the fixing pins 62 are fitted to each other in a state where each of the insertion holes 14B and 34 and the respective adjustment holes 66B coincide with each other.

Each hinge member (60A, 60B) may be coupled to be fixed by each of the fixing pins 62, can be fixed only the necessary hinge members (60A, 60B), so as to be selectively rotated by the elastic control means Can be combined.

In other words, after the tool is coupled to the tool coupling grooves 64A and 64B, the hinge members 60A and 60B are rotated to the set positions, thereby inserting the respective insertion holes 14A, 14B, 24, 34 and the respective adjustment holes 66A, 66B) to be matched to be fixed with a fixing pin (62).

In the present embodiment, the hinge member 60A positioned below the first hinge member 12A on the first rotating member 20 side is fixed by the fixing pin 62, and the hinge member 60A positioned on the upper side of the hinge member 60A has a rotation angle. It is configured to enable the coupling and removal of the fixing pin 62 to be adjustable. In addition, the hinge member (60B) located below the second hinge member (20) fixed hinge portion (12B) is configured to enable the coupling and removal of the fixing pin 62 so that the rotation angle can be adjusted, the upper side The hinge member 60B positioned at will be described based on fixing with the fixing pin 62.

On the other hand, each of the hinge members (60A, 60B), the first and second rotating members (20, 30) are in close contact with both sides of the hinge installation member 10, respectively, the rotating hinge (22, 32) and the fixed hinge ( Only when it is fixed to 12A and 12B, the return elasticity to return to the original state when the first and second rotating members 20 and 30 are rotated to the outside will be generated in each of the elastic members 50A and 50B.

The tool coupling grooves 64A and 64B are used to adjust the elasticity of the elastic members 50A and 50B by inserting a tool to adjust the rotation angle of the hinge members 60A and 60B, or the hinge members 60A and 60B. Used when disassembling / assembling

That is, when the tool is inserted into the tool coupling grooves 64A and 64B to rotate the hinge members 60A and 60B, the elastic members 50A and 50B are twisted according to the rotation direction or the rotation angle or the rotation speed, and thus the elasticity is different. Will be generated. Therefore, in consideration of this, it is to adjust the rotation angle of the hinge members (60A, 60B).

Referring to the operation of the present embodiment configured as described above are as follows.

As shown in FIG. 5A, the door 90 is shown in solid line in a state where the first rotating member 20 is screwed to the door frame 80 and the second rotating member 30 is screwed to the door 90. When pushed in the direction of the straight arrow, the hinge installation member 10 is rotated in the direction of the circular arrow shown by the solid line around each hinge member (60A) of the first rotating member 20 side.

Thus, when the hinge installation member 10 rotates in the direction of the circular arrow, the door 90 is opened in one direction.

When the door 90 is opened, the upper hinge member 60A coupled to the upper end of the elastic member 50A on the side of the first rotating member 20 is connected to the first rotating member 20 by the fixing pin 62. The lower hinge member 60A, which is fixed to the rotary hinge portion 22 and coupled to the lower end portion of the elastic member 50B, is fixed by the fixing pin 62 to the first hinge member 20 on the side of the first rotary member 20. Since the hinge installation member 10 that rotates in the direction of the circular arrow is coupled to 12A), the hinge installation member 10 rotates while overcoming the elasticity of the elastic member 50A. That is, elasticity to return to the original state is generated.

When the force pushing the door 90 in this state is removed, the hinge installation member 10, the second rotating member 30 and the door 90 are opposed to the initial rotation direction by the return elasticity of the elastic member 50A. It will rotate in the direction.

Meanwhile, when the door 90 is pushed in the direction of a straight arrow shown by a solid line, as shown in FIG. The first rotating member 20 and the hinge installation member 10 do not rotate, and the first and second hinge members 30B installed in the rotary hinge portion 32 together with the door 90 are hinged members 60B. Rotate in the direction of the circular arrow shown by the solid line around the central axis.

Thus, when the hinge installation member 10 rotates in the direction of the circular arrow, the door 90 is opened in a direction opposite to the initial direction.

When the door 90 is opened, the upper hinge member 60B coupled to the upper end of the elastic member 50B is connected to the rotating hinge portion 32 of the second hinge member 30 by the fixing pin 62. Since the lower hinge member 60B is fixed to the fixed hinge portion 12B of the lower part of the other side, the hinge installation member 10 that rotates in the direction of the arc of the arrow rotates while overcoming the elasticity of the elastic member 50B. The elasticity to return to the original state is generated.

When the force pushing the door 90 in this state is removed, the hinge installation member 10, the first rotating member 20 and the door 90 are different from the rotation direction that was opened by the return elasticity of the elastic member 50B. It will rotate in the opposite direction and close.

Therefore, the door 90 can be opened in both directions, and returns to its original state (closed) by the elasticity of the elastic members 50A and 50B.

At this time, the hinge installation member 10 and each of the hinge members (60A, 60B) for rotationally supporting the first and second rotating members (20, 30) are each rotated hinge portion (22, 32) ) And fixed hinge portions 12A and 12B, so that they do not interfere with external force during opening and closing operation of the door 90.

On the other hand, the friction reducing member 70 provided in each of the hinge member (60A, 60B) during the opening and closing operation of the door 90 is to minimize the contact between each other between the hinge member (60A, 60B) and the inner diameter of each hinge portion. Not only can damage due to friction be reduced, but also noise due to friction between metals can be significantly reduced. At this time, the lubricant can be injected into the contact portion to improve the effect.

6 is a partially enlarged view showing a state in which the angle of the hinge member shown in FIG. 1 is adjusted.

As shown in FIG. 6, the tool is inserted into the tool coupling groove 64A to adjust the elasticity of each elastic member 50A by using the elastic adjustment means according to the preferred embodiment of the present invention. Subsequently, after removing the fixing pin 62 inserted into the insertion hole 14A and the adjustment hole 66A, the tool is operated to adjust the rotation angle of the hinge member 60A, but the adjustment hole selected from the plurality of adjustment holes 66A. Match 66A with the insertion hole 14A.

At this time, the rotation direction of the hinge member 60A is determined according to the shape of the elastic member 50A (when the coil spring is wound). For example, when it is rotated in the clockwise direction before the initial rotation, the elastic force of the elastic member 50A is increased.

As such, when the user rotates the hinge member 60A at a predetermined angle by using a tool to adjust the elasticity of the elastic member 50A, the hinge member 60A is made to coincide with the insertion hole 14A. After rotating the fitting hole (62A) in the insertion hole (14A) and the adjustment hole (66A) matched with each other, the hinge member (60A) is coupled to the rotary hinge portion 22 of the first rotating member (20).

That is, the user rotates the hinge member (60A) to select one control hole (66A) of the plurality of control holes (66A) and then match with the insertion hole (14A) to secure with the fixing pin 62 door ( 90 will be able to adjust the elasticity of the elastic member (50A) to generate a rotational restoring force.

Therefore, the user can select a wide range of elasticity suitable for the characteristics and applications of the door 90.

The free hinge for the door according to the present invention is a hinge installation member and a hinge member for rotationally supporting each rotating member is installed is inserted into the fixed hinge portion and the rotating hinge portion, according to the present invention the hinge member is integrated and the elastic member support shaft Such a component can be deleted to reduce manufacturing costs, as well as the structure can be simply changed to facilitate assembly work, and since the hinge member is built, the effect of not interfering with an external force is provided. In addition, the friction reducing member is provided with the effect that the friction damage, friction noise, etc. during the opening and closing of the door can be eliminated or significantly reduced. On the other hand, by adjusting the elasticity of the elastic member for generating a rotational restoring force of the door by the elastic adjustment means, the user can be made to open and close the door to suit the characteristics and uses of the door.

Claims (3)

A hinge installation member 10 having hollow fixing hinge portions 12A and 12B formed at different lengths on both sides thereof, respectively; First and second rotating members (20,30) formed with rotating hinge parts (22,32), respectively, to engage with the fixed hinge parts (12A, 12B) formed on both sides of the hinge installation member (10); Elastic members 50A and 50B which are respectively inserted into and installed in the fixed hinge portion 12A on the side of the first rotating member 20 and in the rotating hinge portion 32 of the second rotating member 30; And Inserted into each of the fixed hinge portion (12A, 12B) and the rotating hinge portion (22, 32) so as not to be exposed to the outside, it consists of two pairs coupled to both ends of each of the elastic member (50A, 50B) inside One pair is coupled to the fixed hinge portion 12A and the rotary hinge 22 on one side by the respective fixing pins 62, and the other pair is fixed on the other side by the respective fixing pins 62 on the other side. Hinge members 60A and 60B coupled to the hinge part 12B and the rotary hinge part 32, respectively; Free hinge of the door comprising a. The method of claim 1, wherein the installation grooves (68A, 68B) are formed on the outer periphery of each of the hinge members (60A, 60B), respectively, the friction reducing member 70 is installed in each of the installation grooves (68A, 68B). Door hinges The method according to claim 1 or 2, wherein the elastic control means for adjusting the elasticity of the elastic members (50A, 50B), The elastic adjustment means, each of the insertion hole (14A, 14B, 24, 34) formed in each of the fixed hinge portion (12A, 12B) and each of the rotary hinge (22, 32); A plurality of adjusting holes 66A and 66B radially formed in the hinge members 60A and 60B to selectively match the insertion holes 14A, 14B, 24 and 34 to insert the fixing pins 62; And Tool coupling grooves 64A and 64B formed at one end of each of the hinge members 60A and 60B to adjust elasticity by rotating the hinge members 60A and 60B coupled to the respective elastic members 50A and 50B with a tool; Free hinge for the door comprising a.