KR20130004995A - Apparatus for decelerating ratation of hinge for furniture - Google Patents

Abstract

PURPOSE: An apparatus for reducing the rotation of a furniture hinge is provided to slowly close a door by reducing the rotary speed of the door with a fluid discharge amount, and to prevent noise caused by shock rapidly applied to furniture. CONSTITUTION: An apparatus for reducing the rotation of a furniture hinge comprises a first mounting place(10), a second mounting place(20), an operating link(30), a pressure projection(40), and a fluid control unit. The first mounting place is fixed to the inner wall of a furniture body(60). The second mounting place is fixed to the side of a door(70). The operating link is rotationally connected to the first and second mounting places, and folded and unfolded according to the opening and closing of the door. The pressure projection is formed on the front center of the operating link, and protrudes towards the outside to pressurize or depressurize the fluid control unit. The fluid control unit is connected to the second mounting place, and pressurized or depressurized according to the folding and unfolding of the operating link. The fluid control unit discharges fluid to the outside, and reduce the rotary speed of the door by filling the fluid.

Description

Rotating Reduction Device for Furniture Hinge {apparatus for decelerating ratation of hinge for furniture}

The present invention relates to, for example, a furniture hinge that is installed in a kitchen furniture such as a sink, a storage cabinet, a living room furniture, a built-in cabinet, a closet, and the like so as to smoothly open or close the door by restoring the force applied to the door. Decelerates the rotational speed of the door caused by the spring's elastic action, and prevents the noise generated by the sudden impact on the furniture body when the door is closed, while simultaneously rotating the furniture hinges so as to simplify the structure. It relates to a reduction gear.

In general, a swing door is installed in kitchen furniture such as a sink, a storage cabinet, a living room furniture, a built-in cabinet, a wardrobe, and the like, and a hinge for opening and closing the swing door about the body between the swing door and the body of the furniture is rotated. It is installed, the hinge has a spring is built in a variety of forms to close the door to some extent when closing the door is automatically closed, and has a functional structure to maintain the closed state. In addition, a functional structure has been added to facilitate the adjustment of the separation distance between the door and the body of the furniture.

However, the above-described furniture hinge is not provided with a deceleration device for reducing the movement of the door caused by the elastic action of the spring, when the door is closed, the noise caused by the sudden impact applied to the body of the furniture is caused there was.

To this end, in recent years, a deceleration device for inserting a viscous material between members moving in association with each other to suppress noise generation has been known and practiced.

Such devices have serious drawbacks in that the efficiency of the reduction gear is highly dependent on the ambient temperature at which the viscous material operates. It is clear that the viscosity of the viscous material depends on this temperature.

For example, the use of a high viscosity material can adversely affect the hinge temperature when the ambient temperature drops sharply. And using low viscosity materials can become inefficient when the ambient temperature rises sharply.

Moreover, when the hinge is idle for a long time, the static molecular adherence of the viscous material is larger, which increases the force required for the pivoting motion of the hinge, thus increasing the stress between the members, which may lead to shortening of the life and failure. There is a problem.

Recently, furniture hinges that reduce the rotational movement of the door by mechanical fluid compression without using viscous materials have been devised.

In general, as an example of such a conventional furniture hinge, the specification of Korean Patent No. 869160 discloses a structure in which a damper is coupled to the furniture hinge to minimize the sudden impact applied to the body of the furniture when the door is closed.

According to the specification of the aforementioned Korean Patent No. 869160 (name: furniture hinge), the damper portion is selectively coupled to at least one of the outer surfaces of the body fixing portion fixed to the inner surface of the body of the furniture, the damper portion of the door Alternatively, when the door is closed by hitting the door fixing part fixed to the door to generate a damping force, it is characterized in that the impact noise of the door is prevented due to the sudden closing of the door.

The damper part has a space part therein, and a damper housing selectively coupled to an outer surface of the body fixing part, and one end of the damper part bumps into the door or the door fixing part while being exposed to the outside of the damper housing. A plunger having a fluid storage space that is pressurized and the other end is moved back and forth along the space portion in the damper housing and has a compressible fluid stored therein, and one end is located in the fluid storage space of the plunger. It is coupled to the other end is fixed to the rear in the damper housing characterized in that it comprises a piston rod for generating a damping force while compressing the fluid in the fluid storage space when the plunger retracts.

This furniture hinge technology has the advantage of reducing the sudden impact on the body of the furniture by reducing the sudden rotation of the door by the damping force of the damper when closing the door, but this is in the body fixing portion fixed to the body of the furniture The first and second coupling holes and the engaging protrusions for joining the damper parts must be molded, respectively, and the corresponding damper parts must respectively form the first and second engaging protrusions and the recessed grooves. It is impossible to employ only parts, and the structure is complicated by a large number of members, and duplication of the structure can cause a failure. In particular, since the damper portion that dampens the impact of the door due to the damping force generation is expensive, there is a drawback that the production cost is increased.

In addition, when the fluid storage space or the piston wears due to the repeated movement of the plunger, the piston, and the piston rod of the damper part by repeated opening and closing of the door, the fluid leaks to the outside, and the damping force generation is eliminated. In this case, the damper portion occupies a considerable portion of the furniture hinge, and the replacement cost also increases.

In the conventional case, while recognizing the above-mentioned problems, it is not possible to prepare a specific countermeasure.

Therefore, the present invention was devised under the above-mentioned background, and an object of the present invention is to reduce the rotational speed of the door when the door is closed, thereby preventing the occurrence of noise due to a sudden impact applied to the body of the furniture. It is to provide a rotation reduction device of the hinge, the rotation reduction device, the fluid control means for discharging the fluid into the atmosphere during pressurization and filling the air in the air itself when the pressure is released to the hole cup of the mounting place fixed to the door side It is achieved by reducing the sudden rotational speed of the door to the discharge of the fluid to close the door slowly.

Still another object of the present invention is to provide a rotational reduction device for a furniture hinge that allows a single structure and can be easily combined with an existing furniture hinge without a separate member, and the rotation reduction device is contracted by external pressure. It is achieved by slowly discharging the fluid and consisting only of a member that expands / stands up with its elastic restoring force when depressurized to fill the fluid.

Other objects of the present invention will become more apparent from the following detailed description and the accompanying drawings.

According to the rotation reduction device of the furniture hinge according to the present invention for achieving the above objects, the first mounting place fixed to the body of the furniture, and the second mounting place fixed to the door of the furniture having a flange formed with a concave hole cup And, in the hinge hinges for furniture consisting of an actuating link coupled to the first and the second mounting place rotatably by a hinge shaft and elastically folded and unfolded according to the opening and closing of the door:

A pressurizing protrusion projecting outwardly to the front of the operation link; And a hole cup bottom surface of the flange facing the pressure protrusion, and pressurized and released by contact and non-contact with the pressure protrusion according to the folding and unfolding action of the operation link to discharge the fluid and fill the fluid therefrom. It characterized in that it comprises a fluid control means for reducing the rotational speed of the.

Optionally, the fluid control means has a fluid discharge passage formed in communication with the fluid suction opening and the fluid suction opening on an upper surface thereof and contracts when the pressure protrusion presses the fluid suction opening to seal the fluid discharge passage. A buffer member for discharging the fluid through the fluid suction port while expanding and standing by its elastic restoring force when the pressure is released from the pressure protrusion; And a snap protrusion formed on the bottom surface of the buffer member and bonded to the bottom surface of the hole cup of the flange.

Preferably, the shock absorbing member is characterized in that it has an upper and lower light (上 狹 下 廣) shape that gradually widens in diameter from the top to the bottom.

As such, the hole cup of the second mounting place fixed to the door side is provided with a fluid control means for discharging the fluid filled in itself to the atmosphere during pressurization and sucking and filling the fluid in the atmosphere with its elastic restoring force upon release of the pressurization. When the door is pushed to close the door while the door is open, the pressing projection presses the buffer member of the fluid control means by the folding of the operation link coupled to the first and second mounting places. The shock absorbing member contracts while slowly discharging the fluid in the fluid through the fluid discharge path, thereby reducing the rotation speed of the door, thereby alleviating the impact on the furniture body so that noise is not generated, and also from the pressing protrusion. When the pressure is released, the cushioning member sucks and fills the fluid through the fluid inlet with its elastic restoring force, thereby separately. There is an advantage of not having to use an expensive damper.

According to the rotation deceleration device of the furniture hinge of the present invention, when the door is closed, the rotational speed of the door is reduced by the buffer member of the fluid adjusting means, so that the sudden impact applied to the body of the furniture is alleviated and noise is not generated. In addition, damage to the furniture due to a sudden impact between the door and the body of the furniture is prevented in advance, and the structure is unified, so that the existing furniture hinge can be easily combined and used without a separate member. This does not occur, and it has the effect of mass-producing the rotation reduction device of the furniture hinge at low cost.

1 is an exploded perspective view showing a rotation reduction device of a hinge for a furniture according to the present invention,
Figure 2 is a perspective view showing a rotating deceleration device of the hinge for furniture according to the present invention,
Figure 3 is an enlarged perspective view showing in detail the fluid control means of the hinge for furniture according to the present invention,
Figure 4 is a cross-sectional view showing a state in which the door is open in the rotation reduction device of the hinge for furniture according to the present invention,
Figure 5 is a cross-sectional view showing a state in which the door is closed in the rotation reduction device of the hinge for furniture according to the present invention.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the rotation reduction device of the hinge for a furniture according to the present invention will be described in detail.

As shown in FIGS. 1 to 3, the rotation reduction device of the hinge for a furniture according to the present embodiment has a first mounting place 10 fixed to an inner wall of the body 60 of the furniture, and a side surface of the door 70. The second mounting place 20 is fixed, and the operation link 30 is pivotally coupled to the first and second mounting place 10, 20 and the folding and spreading action according to the opening and closing of the door 70 and , The fluid is coupled to the second mounting place 20 to pressurize and release the pressurization according to the folding and unfolding action of the operation link 30 to discharge the fluid into the atmosphere and fill the fluid therefrom to reduce the rotational speed of the door 70. It is made of a combination of the adjusting unit (50).

In this case, the first mounting place 10 described above is made of a steel material, and has a first flange 12 formed with a fastening hole 14 to be fixed to the inner wall of the body 60 of the furniture.

The second mounting place 20 is also made of steel and has a second flange 22 having fastening holes 22a formed to be screwed to the side of the door 70.

The second flange 22 of the second mounting place 20 is formed with a concave hole cup 24 for hinge coupling with the operation link 30, the hinge hole (24a) on both sides of the hole cup 24 Formed.

In addition, the operation link 30 has a pressing protrusion 40 protruding outward for pressing or releasing the fluid control unit 50 in the center of the front. One end of this actuating link 30 is hinged to the leading end of the first mounting place 10 by a first hinge shaft 16 and the other end of the second flange 22 by a second hinge shaft 26. Is coupled to the hinge hole (24a) of the door 70 is to be folded and unfolding action for the first mounting place 10 fixed to the body 60 of the furniture by opening and closing.

On the other hand, the fluid control unit 50 is implemented with a synthetic resin material having excellent elastic restoring force, coupled to the bottom surface of the hole cup 24 of the second flange 22 to face the pressing projection 40 of the operation link (30) do. As shown in FIG. 3, the fluid control unit 50 has a shape of upper and lower light beams gradually increasing in diameter from the upper part to the lower part, and the fluid suction port 56 and the fluid suction hole (the upper surface of the upper and lower light beams) When the pressurizing protrusion 40 pressurizes the fluid inlet 56 with the fluid discharge passage 58 formed in communication with the opening 56, the pressurized protrusion discharges the fluid through the fluid discharge passage 58 while being contracted. The buffer member 52 which sucks and fills the fluid into the fluid suction opening 56 while expanding / standing with its elastic restoring force upon release from the pressure 40, and a second flange formed on the lower surface of the buffer member 52 And a snap protrusion 54 adhesively bonded to the bottom surface of the hole cup 24 of the 22, wherein the fluid discharge passage 58 is concavely cut out from the top surface of the buffer member 52 to form the fluid inlet 56. It is preferred to be in communication with.

The present invention having the structure as described above will be described in detail with reference to Figs. 4 and 5, the operation state when opening and closing the door 70 in the installation state as shown in FIG.

First, as shown in FIG. 4, when the door 70 is closed while the door 70 is opened from the body 60 of the furniture, the operation link 30 coupled to the first and second mounting places 10 and 20. As the both ends of the) are rotated, respectively, as shown in FIG. 5, the first mounting place 10 and the second mounting place 20 are inserted into the hole cup 24 of the second flange 22 fixed to the door 70. They are in a state perpendicular to each other, whereby the door 70 is closed with respect to the body 60 of the furniture.

As described above, since the operation link 30 also gradually forms a vertical state with respect to the bottom surface of the hole cup 24 while the door 70 is closed, the pressing protrusion 40 protruding therefrom is formed on the second flange 22. The upper surface of the shock absorbing member 52 of the fluid control unit 50 attached by the snap protrusion 54 in the hole cup 24 hits the operation link 30 by the closing operation of the door 70. The protrusion 40 gradually seals the fluid inlet 56 while compressing the upper surface of the buffer member 52.

At this time, the fluid filled in the buffer member 52 is gradually compressed by the pressing force of the pressing protrusion 40 and gradually discharged through the fluid discharge path 58, so that the buffer member 52 also gradually decreases according to the discharge of the fluid. While retracting, the rotation speed of the door 70 is reduced. That is, even if the door 70 is quickly closed by the restoring force by the elastic member (not shown in the figure) of the operation link 30, the door 70 is not affected by the action of the shock absorbing member 52 before hitting the body 60 of the furniture. The cushioning force is provided, and by this, when the door 70 reaches the position where the body 60 of the furniture is completely closed, the rotation speed of the door 70 is slowed to close slowly. 70) and the impact between the body 60 of the furniture is minimized so that no noise occurs.

In addition, as shown in FIG. 5, when the door 70 is opened again while the door 70 is closed from the body 60 of the furniture, both ends of the operation link 30 are rotated, respectively, as shown in FIG. 4. A part of the second cup 22 of the second flange 22 fixed to the 70 is drawn out, so that the first mounting place 10 and the second mounting place 20 are horizontal to each other. The door 70 is opened against the body 60 of the furniture.

At this time, since the operation link 30 also gradually forms a horizontal state with respect to the bottom surface of the hole cup 24 while the door 70 is opened, the pressing protrusion 40 also has an upper portion of the buffer member 52 of the fluid control unit 50. The pressure is released while slowly deviating from the surface.

When the pressure of the pressure protrusion 40 is released as described above, the shock absorbing member 52 gradually expands / stands up while sucking the fluid in the air through the fluid suction port 56 with its elastic restoring force.

When the elastic restoring force of the shock absorbing member 52 is completed, the filling of the fluid is completed, and the filled fluid is then used to slow down the rotation speed of the door 70 when the door 70 is closed.

On the other hand, as a comparative example, unlike the prior art, that is, the fluid storage space or the piston is worn by the repeated movement of the plunger, the piston, and the piston rod of the damper part by repeated opening and closing of the door, the damping force is lowered. Is equipped with a fluid control means for discharging the fluid into the atmosphere when pressurized and filling the air with its elastic restoring force when the pressure is released, in the hole cup of the mounting place fixed to the door side. It can be seen that it will be reduced to emissions.

As a result, according to the present invention, when the door is closed, the shock applied to the furniture body by the sudden rotational speed is alleviated so that no noise is generated, and the shock absorbing member has its own elastic restoring force when the pressure is released from the pressing projection. By sucking the filling through the fluid inlet, there is an advantage that does not need to use an expensive damper separately.

In addition, although specific embodiments of the present invention have been described and illustrated above, it is obvious that the present invention may be variously modified and implemented by those skilled in the art.

Such modified embodiments should not be individually understood from the technical spirit or the prospect of the present invention, and such modified embodiments should fall within the appended claims of the present invention.

10: first mounting place 12: first flange
14 fastening holes 16: the first hinge shaft
20: second mounting place 22: second flange
24: hole cup 26: second hinge axis
30: operation link 40: pressing projection
50: fluid control unit 52: buffer member
54: snap protrusion 56: fluid intake
58: fluid discharge furnace

Claims (4)

A first mounting place fixed to the body of the furniture, a second mounting place fixed to the door with a flange having a concave hole cup formed therein, and hingedly coupled to the first and second mounting place so as to be opened and closed For furniture hinges consisting of actuating links which elastically fold and unfold according to:
A pressurizing protrusion projecting outwardly to the front of the operation link; And
It is coupled to the bottom surface of the hole cup of the flange to face the pressing projection, in accordance with the folding and unfolding action of the operating link pressurized and released by contact and non-contact with the pressing projection to discharge the fluid and to fill the fluid therefrom of the door Rotating deceleration device for a furniture hinge, characterized in that it comprises a fluid control means for reducing the rotation speed. The method according to claim 1,
The fluid control means,
It has a fluid inlet on the upper surface and the fluid discharge passage formed in communication with the fluid inlet port and is discharged when the pressure projection is pressurized while closing the fluid intake port and discharges the fluid through the fluid discharge path, and from the pressure projection A buffer member which sucks and fills the fluid to the fluid inlet while expanding / standing by its elastic restoring force when the pressure is released; And
And a snap protrusion formed on the bottom surface of the buffer member and bonded to the bottom surface of the hole cup of the second flange. The method according to claim 2,
And said fluid discharge path is concavely cut out from an upper surface of said buffer member to communicate with said fluid suction opening. The method according to claim 1,
The shock absorbing member is a rotational reduction device for a furniture hinge, characterized in that it has a shape of the upper narrow lower light (上 狹 下 廣) gradually increasing in diameter from the top to the bottom.

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