KR100865494B1 - A hinge device with brake function - Google Patents

Abstract

According to the present invention, the cam and the spring are made to smoothly rotate the door, and the damping wing is engaged to move the fluid when the door is rotated. The present invention relates to a hinge device having a braking function for stopping a breath and then closing it slowly to prevent noise and impact of the device and to significantly improve the feeling of use.

The present invention for realizing this is composed of a housing fixedly installed in the door, a fixed cam installed in the housing and a shaft integral with the fixed cam and fixed to the body side bracket and the fixed cam in the housing. A hinge device comprising a movable cam installed in correspondence with the spring and supported by a spring and integrally rotated with the housing, wherein the damping wing is fixedly installed in the middle of the extension portion in which the shaft extends upward, and the housing And a cam chamber in which the fixed cam, the movable cam and the spring are accommodated, and a cylindrical damping chamber in which the shaft extension portion in which the damping blade is fixed is accommodated and the fluid is sealed. The damping blade is normally open and the housing is closed. As it is characterized in that the flow path is blocked by the damper plate when rotating.

Description

Hinge device with braking function {A HINGE DEVICE WITH BRAKE FUNCTION}

1 is an exploded perspective view showing the configuration of an embodiment according to the present invention

2 is a partial detailed perspective view of FIG. 1

3 is an exploded view of a portion of Figure 1

4 is a perspective view of the combination of FIG.

5 is a longitudinal cross-sectional view of FIG.

6 is a cross-sectional view taken along the line A-A of FIG.

7 is a variable state diagram of FIG. 6.

FIG. 8 is a variable state diagram of FIG. 6.

9 is an installation state diagram of the present invention

10 is a block diagram of a prior art

* Explanation of symbols for the main parts of the drawings

1: Hinge device with braking function of the present invention

10 housing 10a cam chamber 10b damping chamber

11: Cam seal member 13: Intermediate plate 15: Damping chamber member

17: finish plate 19: shaft through hole 20: fluid

21: O-ring 30: fixed member 31: fixed cam

33: shaft 50: movable cam 51: square flange

53: guide ring 60: spring 70: damping wing

71: fixed portion 73: wing 75: flow path (through)

77: brake blade 79: damper plate

2: body 2a: body bracket 3: door

The present invention relates to a hinge device, in particular, by the cam and the spring to smoothly rotate the door and the damping wing is involved in the movement of the fluid filled in the damping chamber is provided, the hinge operation is made more smooth and closed In the case of rapid rotation, the hinge device is provided with a braking function to temporarily stop the rotational motion, take a breath, and then close it slowly to prevent noise and impact of the device and to significantly improve the feeling of use.

Recently, as the refrigerator is enlarged, a so-called double-door refrigerator with two doors installed in a front door is preferred.

The door of the refrigerator is installed to be rotatable to the main body through the hinge device, but as the size of the refrigerator increases, the importance of the performance and the quality of the use of the hinge device is further highlighted.

The refrigerator door hinge device of the related art is generally configured to include a spring and a cam when the shaft rotates to generate a predetermined torque, so that the door rotates smoothly when the door is opened and closed automatically in a certain section.

The hinge device 100 of the prior art, as shown in Figure 10, the housing 160 is installed in the door and the cam portion is placed in the interior of the housing and one side is fixed to the main body side bracket in a non-rotating state integrally The fixed member 110 and the movable member corresponding to the fixed member 110, which is supported by the spring 130 and rotates integrally with the housing 160 and the door when the door is opened and closed rotates to perform a linear slide movement in the housing. It is composed of a cam (120).

By such a configuration, when the door is opened and closed, the movable member 120 is fixed to the main body side bracket while the movable cam 120 is rotated together with the housing and the door, and is lifted while pressing the spring 130 to generate a predetermined torque. As the door rotates smoothly.

By the way, such a prior art has a problem that when a strong force is applied when closing the door is rapidly rotated to generate a large noise, not only to generate shock and vibration to the device, but also to reduce the feeling of use.

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

It is an object of the present invention to smoothly rotate the door by the cam and the spring, and to provide a damping wing that is involved in the movement of the fluid filled in the damping chamber, thereby making the hinge operation smoother and closing at the time of rapid rotation. It is to provide a hinge device with a braking function to stop the rotation operation to hide and then close slowly to prevent the occurrence of noise and impact of the device and to significantly improve the feeling of use.

Hinged device equipped with a braking function according to the present invention for achieving the above object,

A fixing member fixed to the door, a fixed cam installed inside the housing, and a shaft integrated with the fixed cam, the fixing member fixed to the main body side bracket, and correspondingly installed in the housing by a spring, In the hinge device is configured to include a movable cam which is supported to be rotated integrally with the housing,

A damping wing is fixedly installed in the middle of the extension portion in which the shaft extends upwards,

The housing is composed of a cam chamber in which the fixed cam, the movable cam and the spring are accommodated, and a cylindrical damping chamber in which the shaft extension portion in which the damping blade is fixed is received and the fluid is filled and sealed.

The damping wing is characterized in that the passage is always open and is blocked by the damper plate when the housing rotates in the closing direction.

Hereinafter, an embodiment of a hinge device with a braking function of the present invention will be described in more detail with reference to the accompanying drawings.

1 is an exploded perspective view showing the configuration of an embodiment according to the present invention, Figure 2 is a partial detailed perspective view of Figure 1, Figure 3 is a partial exploded view of Figure 1, Figure 4 is a combined perspective view of Figure 1, Figure 5 6 is a cross-sectional view taken along line AA of FIG. 5, FIG. 7 is a variable state diagram 1 of FIG. 6, and FIG. 8 is a variable state diagram 2 of FIG. 6, and FIG. 9 is an installation state diagram of the present invention.

As shown in Figures 1 to 9, the hinge device 1 with a braking function according to an embodiment of the present invention is a housing 10 which is fixed to the door 3, the fixing is installed inside the housing The fixed cam (30) and the fixed cam (30) which are composed of a cam (31) and a shaft (33) integrated with the fixed cam (31) and fixed to the bracket (2a) on the main body (2). In the hinge device corresponding to 31 and comprising a movable cam 50 which is supported by a spring 60 and configured to rotate integrally with the housing 10, the shaft 33 extends upwards. A damping wing 70 is fixedly installed in the middle of the formed extension, and the housing 10 includes a cam chamber 10a in which the fixed cam 31, the movable cam 50, and the spring 60 are accommodated, and the damping wing. It consists of a cylindrical damping chamber (10b) in which the shaft extension portion 70 is fixed and the fluid 20 is filled and sealed. Damping blades 70, there will be at all times has opened and the housing is a passage 75 is blocked by the rotation when the damper plate 79 is formed in a closing direction.

Here, the damping wing 70 has a blade 73 protruding from one side of the fixing portion 71 fixed to the shaft 33 to prevent rotation, and the inner circumferential surface of the damping chamber 10b at the tip of the blade 73. It is preferable that the brake blades 77 are disposed to form a gap s at 152 and are in close contact with the inner circumferential surface 152 by a centrifugal force during rapid rotation.

In addition, an insertion groove 731 is formed at the tip of the blade 73, and a part of the brake blade 77 is inserted into the insertion groove 731.

The brake blade 77 is not fixed to the insertion groove 731 is formed so as to be moved to the outside when the centrifugal force is generated.

The shaft 33 and the fixing portion 71 of the damping blade are provided with anti-rotation flat surfaces so that the damping blade 70 is coupled to prevent rotation of the shaft 33 (see FIG. 3).

In addition, the flow path 75 is a through-hole formed horizontally through the blade 73, the damper plate 79 is preferably composed of a leaf spring is fixed to the upper end in the through-hole flow path (75). .

In addition, the cam chamber 10a of the housing is formed in a rectangular shape,

The movable cam 50 may be integrally formed with a square flange 51 corresponding to the cam chamber 10a below to be integrally rotated with the housing 10.

In addition, the housing 10 is the cam chamber member 11 forming the cam chamber 10a, the intermediate plate 13, the coupling flange 151 is coupled to the upper cam chamber member 11, the shaft through-hole 19 is formed; ) Is formed at the upper and lower ends, the lower end is coupled to the intermediate plate 13 and is coupled to the damping chamber member 15 and the upper anti-ping chamber member 15 to form the columnar damping chamber 10b, and the shaft through hole 18. It is composed of the finishing plate 17 is formed, the damping chamber (10b) and the intermediate plate 13, the coupling portion of the damping chamber (10b) and the closing plate 17, the shaft 33 and the intermediate plate 13 It is preferable that an O-ring 21 for preventing fluid leakage is provided between the shaft hole 19 and the closing plate 17.

In addition, a guide ring 53 may be provided around the coupling portion of the fixed cam 31 and the movable cam 50.

The fixed cam 31 and the movable cam 50 are formed in the form of a plurality of spiral teeth, it is preferable that the door is designed as an automatic closing area that automatically closes even if no external force is applied in the 0 ° ~ 60 ° region.

In the drawings, reference numeral 23 denotes a packing, and 72 denotes a damping wing fixing means.

It looks at the operating state of the hinge device (1) equipped with a braking function according to the present invention having such a configuration.

When the door 3 is opened and closed, the housing 10 and the movable cam 50 are rotated about the fixing member 30 together with the door and the movable cam 50 compresses the spring 60 in the cam chamber 10a. While moving straight.

Therefore, the torque for the door rotation is generated by the reaction force of the spring 60 is made smoothly the rotation operation.

At the same time, the damping chamber 10b slows down the rotation speed while the fluid 20 passes through the narrow passage 75 and the gap s between the damping chamber inner circumferential surface 152 and the brake blade 77 as the door rotates. To smooth the opening and closing of the door.

The damper plate 79 is always lifted slightly away from the flow path 75 (see FIG. 6), and when the door 3 is rotated in the open direction, the fluid 20 moves from the blade 73 to the damper. Since the flow path 75 is opened by moving in the direction of pushing out the plate 79, the open rotation operation is naturally performed (see FIG. 7).

When the door 3 rotates in the closing direction, the fluid 20 pushes the damper plate 79 in the direction of blocking the flow path 75 (see FIG. 8).

At this time, when the rotational speed is slow, the brake blade 77 maintains a gap s between the damping chamber inner circumferential surface 152 and the rotational speed is further decelerated than in the open rotation, but the rotational motion continues. do.

When the door is tightly closed, the damper plate 79 of the fluid 20 blocks the flow path 75, and the brake blade 77 is pushed out by the centrifugal force to closely contact the inner circumferential surface 152 of the damping chamber. Since all passages are blocked, rotation of the housing 10 and the door stops temporarily, and when the fluid pressure is released, the flow path 75 is spaced apart from the blade 73 by the return force of the damper plate 79 made of a leaf spring. Is opened and the door is rotated again so that the brake blade 77 is also returned by the fluid pressure.

Therefore, in the present invention, the torque is generated by the fixed cam 31, the movable cam 50, and the spring 60, and the damping wing 70 is provided so that the hinge operation is further decelerated and made smooth, and the closing rapid rotation is achieved. At the time, the rotation operation is temporarily stopped, and then the rotation operation is gradually closed.

As described above, the present invention may be variously substituted, modified, and changed without departing from the technical spirit of the present invention by those skilled in the art to which the present invention pertains. It is not.

As described in detail above, in the hinge device with a braking function according to the present invention, a damping wing that is engaged in the movement of the fluid filled in the damping chamber while also smoothly rotating the door by the cam and the spring is provided. Hinged operation is made smoother by closing, and when the closing rapid rotation temporarily stops the rotation operation to hide and then close slowly to prevent the occurrence of noise and impact of the device has an excellent effect to significantly improve the feeling of use.

Claims (7)

A housing 10 fixed to the door 3, a fixed cam 31 installed inside the housing, and a shaft 33 integral with the fixed cam 31, and having a main body 2 side bracket ( A movable cam fixed to the fixing member 30 and the housing 10 corresponding to the fixing cam 31 in the housing 10 and supported by the spring 60 and configured to rotate integrally with the housing 10 ( In the hinge device comprising a 50), A damping wing 70 is fixedly installed in the middle of the extension portion in which the shaft 33 extends upward, The housing 10 includes a cam chamber 10a in which the fixed cam 31, the movable cam 50, and the spring 60 are accommodated, and a shaft extension in which the damping wing 70 is fixed, and the fluid 20. Is made of a cylindrical damping chamber (10b) is filled and sealed, The damping wing (70) is a hinge device having a braking function, characterized in that the channel 75 is opened at all times and is blocked by the damper plate (79) when the housing rotates in the closing direction. The method according to claim 1, The damping wing 70 has a blade 73 protruding from one side of the fixing part 71 fixed to the shaft 33 to prevent rotation thereof, and an inner circumferential surface of the damping chamber 10b at the tip of the blade 73. 152 is a hinge device having a braking function, characterized in that the brake blade 77 is arranged to form a gap (s) and is in close contact with the inner peripheral surface (152) by a centrifugal force during rapid rotation. The method according to claim 2, The blade 73 is a hinge device having a braking function, characterized in that the insertion groove 731 is formed at the tip and the brake blade 77 is inserted into the insertion groove 731. The method according to claim 2, The flow path 75 is a through-hole formed horizontally through the wing 73, The damper plate (79) is a hinge device having a braking function, characterized in that consisting of a leaf spring, one end is fixed to the upper portion in the through-flow channel (75). The method according to claim 1, Cam housing (10a) of the housing is formed in a square inside, The movable cam 50 is a hinge device with a braking function, characterized in that the square flange 51 corresponding to the cam seal (10a) is formed integrally to be rotated integrally with the housing (10). The method according to claim 1 or 5, The housing 10 has a cam chamber member 11 forming the cam chamber 10a, an intermediate plate 13 and a coupling flange 151 that are coupled to an upper portion of the cam chamber member 11 and have shaft holes 19 formed therein. Is formed in the upper and lower end is coupled to the upper damping chamber member 15 and the damping chamber member 15 to form a cylindrical damping chamber (10b) is coupled to the intermediate plate 13 and the shaft through hole 18 is formed Consisting of a closing plate 17, The damping chamber 10b and the intermediate plate 13, the coupling portion of the damping chamber 10b and the closing plate 17, the shaft hole 19 of the shaft 33 and the intermediate plate 13 and the closing plate 17. The hinge device with a braking function, characterized in that the respective fluid leakage prevention O-ring 21 is provided therebetween. The method according to claim 1, The hinge device with a braking function, characterized in that the guide ring 53 is provided around the coupling portion of the fixed cam 31 and the movable cam 50.

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