KR200380537Y1 - A free-stop and slow-down hinge device - Google Patents

Abstract

The present invention relates to a freestop and slowdown hinge device in which a door is a free stop and a slowdown area, which are most open areas, to improve safety and usability, and to improve productivity and operation reliability with a simple configuration. .

The present invention for realizing this, the housing consisting of a housing body and a cover coupled to the end of the housing body fixed to the main body and the inner space is formed through the longitudinal direction, is installed on one side of the housing and the door side Door-side cam member integrally formed on the fixed shaft, the body-side cam member is installed corresponding to the door-side cam member and linearly moved by the rotational movement of the door-side cam member, for pressing and supporting the body-side cam member A hinge apparatus including a prestop portion including a pressing member, wherein the freestop portions are disposed on opposite sides of the freestop portion, and are fixed to the housing body between the freestop portions on both sides, and the helical cam surface is symmetrical on both sides of the body. The fixed cam is formed, the cam surface corresponding to the fixed cam is formed to be installed opposite to both sides of the fixed cam and to the pressing member A pair of rotary slide cams, which are supported by rotation and linear movement with rotation, is connected to the door side cam member of the free stop part and the rotary slide cam so as to be integrally rotated and installed opposite to both sides to guide the pressure member. It is characterized in that the slow down portion is composed of the rod is arranged.

Description

FREE-STOP AND SLOW-DOWN HINGE DEVICE}

The present invention relates to a hinge device, in particular, in the free-stop area where the door is the most open area, the open state is stably maintained at any point, and the remaining area is a slow-down area in which sudden free fall of the door is blocked. Minimizes impact and improves safety and usability. In addition, the simple construction reduces the number of parts and assembly, significantly improving productivity, and free-stop and slow-down for improved reliability as slow-down operation is not affected by temperature changes. A hinge device.

The door that opens and closes upwards, such as a kimchi refrigerator, is opened completely close to the upright when the storage is taken out. It is required to be safe from the danger of free fall.

Accordingly, the present applicant has proposed a hinge device for stably opening and closing the operation of the door by the application number 10-2004-0011975 ("free stop and slow down hinge device").

As shown in FIGS. 1 and 2, the hinge device 10 of the technology previously filed by the present applicant has a slow state using a free stop part 200 by a cam in the housing 100 and an inlet / outlet pressure of a fluid. The down part 330 is provided in combination.

The free stop part 200 is installed at one side of the housing 100 and is formed on the door side cam member 210 integrally formed on the first shaft 213 fixed to the door side, and the door side cam member 210. A main body side cam member 230 which is installed in correspondence and linearly moves by the rotational movement of the door side cam member 210, and a first pressing member 250 for pressing and supporting the main body side cam member 230; It is configured to include.

The slow down part 300 is installed on the other side of the housing main body 110 to face the free stop part 200, and is fixed to the door side of the second shaft 310 and the second shaft 310. Rotating piston 320 is coupled to and integrated with the fluid chamber 330 is provided so that the rotary piston 320 is accommodated and the inner space for filling the fluid and the rotation is prevented in the housing inner space 111 and The rotary piston 320 is configured as a chamber cover 340 to prevent the departure from the fluid chamber 330.

Looking at the state of operation of the prior art of such a configuration as follows.

The door side cam member 210 having the spiral cam frictional surface 211 of the free stop part is fixed integrally with the door and rotates according to the opening and closing of the door 3. The housing is accommodated so that rotation is prevented by the housing 100 to perform a linear slide movement and the elasticity of the first pressing member 250 during this linear movement.

In the open state of the door 3, the door-side cam member and the main body-side cam member are mutually securely engaged (see FIG. 1A and FIG. 2A), and when the door 3 is closed, the body-side cam member 230 is closed. It is slid and connected to the door-side cam member 210 at the front end (see FIG. 1B and FIG. 2B), and when the door is opened at an angle at a predetermined angle, the cam cam surface 211 (231) is in the middle. Connected (not shown).

The rotation range of the door-side cam member 210 is designed to be in the range of -5 to 85 ± 5 °, and the pressing force of the first pressing member is designed to exceed the torque value of the door in the region where the opening angle is approximately 15 ° or more. Area F, and the stop state of the door is maintained at any point in the free stop area F. FIG.

In addition, the slow down part 300 formed on one side of the housing 100 is suppressed from rotating the rotary piston 320 in the fluid chamber 330 filled with the fluid, the second shaft on the rotary piston 320 The 310 is integrated to reduce the rotational motion so that the opening and closing rotational motion of the door is smoothly decelerated.

In addition, the region in which the door opening angle is rotated to about 15 ° or less out of the freestop region F is closed at the low speed even though the door weight is acted upon by the decelerating rotation of the slow down part 300. It becomes a slow down area (S).

However, the prior art has a problem in terms of productivity due to the large number of parts and difficult assembly of the slowdown part, and the slowdown operation is affected by the change in the pressure and temperature of the fluid, and thus the reliability is inferior.

The present invention has been devised to solve the above problems,

The purpose of the present invention is to keep the open state stably at any point in the free stop area where the door is the most open area, and the remaining area is a slow down area where the sudden free fall of the door is blocked, thereby minimizing the impact on the device. The present invention provides a freestop and slow down hinge device that improves safety and usability, as well as a significant reduction in the number of parts and assembly labor due to a simple configuration.

Another object of the present invention is to provide a freestop and slowdown hinge device for improving the reliability since the slowdown operation is not affected by temperature change.

Free stop and slow down hinge device according to the present invention to achieve the above object is a housing consisting of a housing body is formed through the inner space in the longitudinal direction and is fixed to the main body side and the cover is respectively coupled to the end of the housing body, A door side cam member installed on one side of the housing and integrally formed on a shaft fixed to the door side, a body side cam member installed corresponding to the door side cam member and linearly moved by a rotational movement of the door side cam member; In the hinge device comprising a prestop portion including a pressing member for pressing and holding the main body side cam member,

The free stop is provided on both sides facing each other,

Between the free stops on both sides, a fixed cam is fixed to the housing body and the helical cam surface is symmetrically formed on both sides of the body, and a cam surface corresponding to the fixed cam is formed so as to be opposite to both sides of the fixed cam and is provided by the pressing member. A pair of rotary slide cams, which are strung together and linearly moved together with rotation, is connected to the door side cam member of the free stop part and the rotary slide cam so as to rotate integrally, and a pair of opposite sides installed to guide the pressure member. It is characterized in that the slow-down portion consisting of the rod is arranged.

According to one embodiment of the present invention, the free stop part has a spiral cam surface of the door side cam member and a corresponding main body side cam member, and the pressing member freely rotates in an area of 85 ° to 20 ± 5 ° of the door opening rotation. Configured to stop,

The slow-down portion is formed in the shape and angle of the fixed cam and the rotating slide cam so that the low-speed rotation is made in the 20 ± 5 ° ~-5 ° region of the remaining area of the free stop door opening rotation area.

In one embodiment according to the present invention, one side is the free stop portion is arranged and the other side is configured to the slow down portion,

The shaft fixed to the door of the other side may have a rod which is directly inserted into the fixed cam through hole of the slow down part so as to be freely rotated.

Hereinafter, with reference to the accompanying drawings an embodiment of the free stop and slow down hinge device of the present invention will be described in more detail.

Figure 3 is an exploded cross-sectional view showing the configuration of an embodiment according to the present invention, Figure 4a is an assembled cross-sectional view of Figure 3, Figure 4b is a closed state, Figure 2 is a side view of FIG.

As shown in Figures 2 to 4, the free stop and slow down hinge device according to the present invention, the housing body 110 and the housing body 110 is formed in the inner space through the longitudinal direction and fixed to the main body side A housing 100 consisting of a cover 130 coupled to each end of the door 100, a door side cam member 210 integrally formed on a shaft 213 fixed to the door side and installed on one side of the housing 100, Pressed to pressurize and support the main body side cam member 230 and the main body side cam member 230 which are installed corresponding to the door side cam member 210 and are linearly moved by the rotational movement of the door side cam member 210. In the hinge device including a free stop portion 200 is configured to include a member 250,

The free stop portion 200 is installed on both sides of the opposite side, between the free stop portion 200 of both sides, is fixed to the housing main body 110 and the helical cam surface 512 is symmetrically formed on both sides of the body 511 The fixed cam 510 is formed, the cam surface 531 corresponding to the fixed cam 510 is formed on both sides of the fixed cam 510 and is supported by the pressing member 250 to be linearly moved with rotation. A pair of rotary slide cams 530, the door side cam member 210 and the rotary slide cam 630 of the free stop unit are connected to rotate integrally and to face both sides to guide the pressing member 250 The slow down part 500, which consists of a pair of rods 550 to be installed, is disposed and configured.

The free stop part 200 is a spiral cam surface 211 of the door side cam member 510 and a corresponding body side cam member 230 and the pressing member 25 are rotated in a door opening 85 ° to 20 ± 5 degrees. It is configured to freeze the rotational movement in the region

The slow down part 500 is the fixed cam 510 and the rotating slide cam 530 to achieve low-speed rotation and slow down in the 20 ± 5 ° ~-5 ° region of the remaining area of the free stop door opening rotation area ) Shape and angle arrangement.

The angle arrangement for the slowdown is configured such that the cam member movement of the prestop portion 200 and the cam movement of the slowdown portion 500 are made in linkage.

As shown in FIG. 5, the fixed cam 510 of the slow down part 500 is provided to the cam members 210 and 230 of the free stop part in order to rotate at a low speed in the door opening rotation region to both sides of the body 511. In comparison, a serrated cam portion having a relatively gentle spiral cam surface 512 is formed, and the body 511 is fixed to the housing main body 110 to correspond to the linear guide protrusion 113 formed in the housing to prevent rotation. The groove 513 is formed on the outer edge and the rod 550 is inserted in the center to form a through hole 515 for free rotation.

As shown in FIG. 6, the rotating slide cam 530 has a helix cam surface 531 formed smoothly corresponding to the fixed cam 510.

In addition, the rod 550 of the slow down portion 500 has a polygonal rod shape as shown in FIG. 7, and a circumferential stepped insertion portion 552 is inserted into the fixed cam 510 at one end thereof. The door side cam member 210 has a polygonal hollow portion 216 formed corresponding to the rod 550 in the protruding shaft 215 into which the main body side cam member 230 is fitted. The rotating slide cam 530 is fitted to the rod 550 is formed with a polygonal through hole 535 to be rotated together.

The engagement angle of the door-side cam member 210 and the rotary slide cam 530 through the rod rod 550 of the polygonal rod is the cam member motion of the free stop 200 and the cam motion of the slow down part 500. Will determine the association of.

As another embodiment 1A according to the present invention, as shown in FIG. 9, one side of the free stop part 200 is disposed and the other side of the slow down part 500 is disposed, and the other side door The shaft 220 is fixed to the rod 225, which is directly inserted into the fixed cam through hole 515 of the slow-down portion so as to rotate freely protrudes.

That is, the slow down part 500 is formed on one side instead of the center and the other shaft 220 is a simple configuration in which the cam member is excluded. At this time, the cam surface 512 of the fixed cam 510 is formed only on one side. .

Reference numeral 212 is a lubricant filling groove, 237 is a guide groove for preventing rotation of the main body side cam member, 270 is a bushing, 533 is a protrusion of the rotary slide cam 530 for assembling the pressure member. It is a stage (see FIG. 6).

It looks at the operating state of the free stop and slow down hinge device 1 according to the present invention having such a configuration.

Since the operation of the free stop unit 200 is the same as that of the above-described prior art, the operation of the slow down unit 500 and the series of the free stop unit 200 and the slow down unit 500 are briefly described herein. Examine the relation of operation.

As the door side cam member 210 is rotated along with the door rotation, the body side cam member 230 rides on the linear guide protrusion 113 of the housing body 110 by the spiral cam surface 211 (231). The slide of the door 3 and the door-side cam member 210 is pushed straight from the cam member 210 and is linearly slid to receive the elasticity of the pressing member 250 so that no external force is applied at any point in the free stop region F. The stationary state remains stable (see FIG. 2).

Meanwhile, the slow down part 500 rotates the rotary slide cam 530 coupled to rotate together with the door side cam member 210 through the rod 550 together with the rotation of the door side cam member 210. do.

The rotary slide cam 530 is pushed from the fixed cam 510 due to the helical cam friction with the fixed cam 510 coupled to the housing body so that the rotation is prevented with such rotation, and the pressure member 250 is also pushed. You will receive the momentum.

Here, the sequential relationship between the cam motion of the free stop part 200 and the cam motion of the slow down part 500 will be described with reference to FIG. 10.

In the open state of the door 3, the rotating side cam member 530 and the fixed cam 510 of the door side cam member 210 and the main body side cam member 230 and the slow down part 500 of the free stop part 200 are fixed. Is a mutually stable engagement (see a of Figure 10).

In the slow-down region immediately before closing, the free stop portion 200 is connected to the door side cam member 210 at the front end by sliding the main body side cam member 230, and at this time, the free stop portion 20 Loses the stop function.

The slow down part 500 starts the friction before leaving the free stop area and reaches the slow down area S, which is 20 ± 5 ° or less, so that the friction coefficient is increased by the pressing force of the pressing member 250, thereby rotating the rotating cam. A low speed rotation of the 530 is made, which results in a low speed rotation of the door side cam member 210 (see b of FIG. 10).

In addition, the slow down part 500 is configured to be disposed on both sides of the rotating slide cam 530 and the pressing member 250 with respect to the fixed cam 510, and then closes and closes completely after a more stable low speed rotation (Fig. 10). C).

The present invention maintains the stable state at any point in the free stop area (F) where the door is the most open area, and the remaining area is a slow down area (S) in which sudden free fall of the door is blocked. Minimized impact and improve the safety and usability, as well as the configuration of the slow-down portion with seven components in the prior art is reduced to only three, there is a significant reduction in the number of parts and assembly labor has the effect of improving productivity.

In addition, since the slow down function is achieved by the cam structure, it is not affected by temperature change, thereby improving reliability of operation.

On the other hand, in another case (1A) according to the present invention is configured for the case where the relatively small door is installed on one side of the free stop portion 200, the other side is a slow down portion 500, The configuration is very simple, so it has both free-stop and slow-down functions, making it very easy to manufacture.

In the above, preferred embodiments of the present invention have been described with reference to the accompanying drawings. Here, the terms or words used in the present specification and claims should not be construed as being limited to ordinary or dictionary meanings, but should be construed as meanings and concepts corresponding to the technical spirit of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical ideas of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

As described in detail above, in the freestop and slowdown hinge devices according to the present invention, the open state is stably maintained at any point in the freestop area in which the door is the most open area, and the remaining area is sudden free fall of the door. Is a slow-down area to block the impact to the device is minimized, improves safety and usability, and a simple configuration significantly reduces the number of parts and assembly labor has an excellent effect of improving productivity.

In addition, since the slow down function is made by the cam structure, it is not affected by the surrounding environment such as temperature, thereby improving reliability of the slow down operation.

1 is a cross-sectional configuration of the prior art as a diagram open state, b diagram closed state

2 is a side view in which the prior art and the present invention are commonly applied;

a is open, b is closed

3 is an exploded cross-sectional view showing the configuration of an embodiment according to the present invention

Figure 4a is an assembled cross-sectional view of Figure 3

4b is a closed state diagram

Figure 5 is a left side view of Figure 4 a is an open state, b is a closed state

6 is a perspective view of a fixed cam of an embodiment according to the present invention

7 is a perspective view of a rotary slide cam of an embodiment according to the present invention

8 is a perspective view of a rod of an embodiment according to the present invention

9 is a perspective view of a door side cam member according to the present invention

10 is an explanatory view of the operation relationship between the free stop part and the slow down part according to the present invention;

*** Explanation of symbols for the main parts of the drawings

1: Free stop and slow down hinge device of the present invention 2: Main body

3: door 100: housing 110: main body

113: straight guide protrusion 130: cover 200: free stop

210: door side cam member 213: shaft 214: bracket

230: main body side cam member 235: central hole 250: pressing member

500: slow down portion 510: fixed cam 511: body

512: cam surface 513: groove 515: through hole

530: rotating slide cam 531: cam surface 535: polygon through hole

550: rod 552: step insertion unit 10: the hinge device of the prior art

Claims (5)

The housing 100 and the housing 100, each of which includes a housing body 110 formed through the inner space in a longitudinal direction and fixed to the main body side, and a cover 130 coupled to an end of the housing body 110, respectively. Door-side cam member 210, which is installed on one side and is integrally formed on the shaft 213 fixed to the door side, is installed corresponding to the door-side cam member 210 and to the rotational movement of the door-side cam member 210 In the hinge device comprising a main body side cam member 230 that is linearly moved by the free stop portion 200, including a pressing member 250 for pressing and supporting the body side cam member 230, The free stop portion 200 is installed on both sides facing each other, The fixed cam 510 and the fixed cam 510 are fixed to the housing main body 110 and the spiral cam surface 512 is symmetrically formed on both sides of the body 511 between the free stop portions 200 on both sides. A pair of rotating slide cams 530, which are formed on opposite sides of the fixed cam 510 and are supported by the pressing member 250 and linearly move with rotation, are formed on the cam surface 531, and the door of the free stop part. Slow down part consisting of a pair of rods 550 which are connected to both sides to connect the side cam member 210 and the rotating slide cam 630 integrally to guide the pressing member 250 Free stop and slow down hinge device, characterized in that 500 is arranged arranged. The method of claim 1, The free stop part 200 is a spiral cam surface 211 of the door side cam member 510 and a corresponding body side cam member 230 and the pressing member 25 are rotated in a door opening 85 ° to 20 ± 5 degrees. The rotational movement is pre-stopped in the The slow down part 500 has a shape of the fixed cam 510 and the rotating slide cam 530 such that the low-speed rotation is performed in the 20 ± 5 ° ~-5 ° region of the remaining area of the free stop door opening rotation area And Free stop and slow down hinge device characterized in that the angle is made. The method according to claim 1 or 2, The fixed cam 510 of the slow down part 500 has a sawtooth shape having a spiral cam surface 512 which is relatively gentle compared to the cam member of the free stop part in order to rotate at a low speed in the door opening rotation region on both sides of the body 511. Cam portion is formed, The body 511 is fixed to the housing main body 110, the groove 513 corresponding to the linear guide protrusion 113 formed in the housing to prevent rotation is formed on the outer edge and the rod 550 is inserted in the center Free-stop and slow-down hinge device, characterized in that the through-hole 515 is formed for free rotation. The method of claim 1, The rod 550 of the slow down part 500 has a polygonal rod shape and is formed with a columnar stepped insertion part 552 inserted into the fixed cam 510 at one end thereof.  The door side cam member 210 has a polygonal hollow portion 216 formed corresponding to the rod 550 in the protruding shaft 215 to which the main body side cam member 230 is fitted. The rotating slide cam 530 is a free stop and slow down hinge device, characterized in that the polygonal through hole 535 is formed to be inserted into the rod 550 to rotate together. The method of claim 1, One side is the free stop portion 200 is disposed and the other side is the slow down portion 500 is arranged, The shaft 220 is fixed to the door of the other side is a free stop and slow down hinge device, characterized in that the rod 225 is directly inserted into the fixed cam through hole 515 of the slow down portion to be freely rotated.