KR100646956B1 - Damper device - Google Patents

Abstract

(Problem) Provided is a damper device capable of maintaining a braking torque with a certain accuracy and improving durability by preventing a large load from being applied to the valve.

(Resolution) The silicone oil leaks between the housings 11 and 21, the silicone oil 41 contained in the housing, the rotor 51 rotatably housed in the housing, and the rotor and the housing. In the damper device D which consists of the O-rings 71 which prevent a thing, the accommodating part 15 of the housings 11 and 21 which move in the circumferential direction of the silicone oil 41, and accommodates the silicone oil 41 is carried out. ) Is formed in the rotor 51 extending radially to define the first rotating blade 54 having the cutout 54a, and opening the cutout 54a while the rotor 51 rotates in one direction. Then, a first valve 61 formed of an elastically deformable elastic body that closes the cutout 54a while the rotor 51 rotates in the other direction is provided on the first rotating blade 54.

Description

Damper device {DAMPER DEVICE}             

1 is an exploded perspective view of a damper device which is an embodiment of the present invention

2 is a plan view of the case shown in FIG.

3 is a front view of the case shown in FIG.

4 is a bottom view of the case shown in FIG.

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

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

7 is a plan view of the cap shown in FIG.

8 is a cross-sectional view taken along the line C-C of FIG.

9 is a plan view of the second valve shown in FIG.

10 is a front view of the second valve shown in FIG.

FIG. 11 is a bottom view of the second valve shown in FIG. 9. FIG.

12 is a plan view of the rotor shown in FIG.

FIG. 13 is a front view of the left half of the rotor shown in FIG. 12 taken in cross section; FIG.

14 is a bottom view of the rotor shown in FIG. 12;

15 is a plan view of the first valve shown in FIG.

FIG. 16 is a front view of the first valve shown in FIG. 15. FIG.

FIG. 17 is a bottom view of the first valve shown in FIG. 15. FIG.

FIG. 18 is a right side view of the first valve shown in FIG. 15

19 is a plan view of the arm shown in FIG.

20 is a front view of a portion of the arm shown in FIG. 19 broken;

FIG. 21 is an enlarged cross-sectional view taken along line D-D of FIG. 19.

22 is a plan view of a damper device which is an embodiment of the present invention;

Figure 23 is a front view of a damper device which is an embodiment of the present invention

24 is a rear view of a damper device according to one embodiment of the present invention.

25 is a bottom view of a damper device according to one embodiment of the present invention.

26 is a right side view of a damper device according to one embodiment of the present invention.

27 is a left side view of a damper device according to one embodiment of the present invention;

FIG. 28 is a cross-sectional view taken along line E-E of FIG. 22;

FIG. 29 is a partially enlarged cross-sectional view taken along line E-E of FIG. 22.

30 is an enlarged cross-sectional view taken along line F-F in FIG. 22.

31 is an operation explanatory diagram of a damper device according to one embodiment of the present invention;

32 is an operation explanatory diagram of a damper device according to one embodiment of the present invention;

33 is an explanatory view of the operation of the damper device as an embodiment of the present invention;

34 is an operation explanatory diagram of a damper device according to one embodiment of the present invention;

Explanation of symbols on the main parts of the drawings

D-Damper Unit 11-Case

12-Case body 13-Bottom

14-Cylindrical wall portion 14a-Lower wide diameter step

14b-Conical part 14c-Upper diameter stepped part

15-receptacle 16-bearing

17-2nd rotating wing (wall part) 17a-Notch (2nd viscous fluid passage)

17b-bearing notch 17c-conical surface

18-female part 18a-mounting holes

21-Cap (Housing) 22-Through Hole

23-Expansion step 24-Cone

25-Upper side expansion step 31-Second valve

32-Shaft 33-Valve

33a-Notch 41-Silicone Oil (Viscous Fluid)

51-rotor 52-shaft

52a-recess 52b-cut I

52c-fitting groove 53-flange

53a-hole 54-first pivotal wing

54a-Notch (first viscous fluid passage) 54b-Bearing notch

55-Conical side 58-Passage

61-first valve 62-shaft

63-valve part 64-protruding part

71-O-Ring (Seal) 81-Annular Sheet

91-arm 92-1st horizontal part

92a-mounting holes 92b-fitting protrusions

92c-groove 93-slope

94-second horizontal section 94a-mounting holes

A, B-compartment

The present invention relates to, for example, a one-way damper device that brakes the rotation of the door in the opening direction and makes the rotation of the door non-braking in the closing direction.

The damper device includes a rotor having a housing and a viscous fluid contained in the housing, a rotor rotatably housed in the housing and a part protruding from the housing, and a viscous fluid leaking between the shaft and the housing of the rotor. A first fluid which is formed of a seal member which prevents it from becoming axially, and has a axially formed protrusion having a fluid passage in the rotor, and a flow rate of the viscous fluid with respect to the fluid passage of the protrusion as a small flow rate while the rotor rotates in one direction. It is proposed to cover the protrusion with a valve having a passage and a second fluid passage having a high flow rate of the viscous fluid to the fluid passage of the protrusion while the rotor rotates in the other direction.

[Patent Document 1] Japanese Patent No. 2571655

Since the valve in the damper device is arranged to be movable and rotatable, the viscous fluid passes through the gap with the housing so that the desired braking torque cannot be obtained, and it is difficult to maintain the braking torque with a constant accuracy. It was.

In addition, since a large load is applied to the valve, the valve may be damaged and the durability is inferior.

The present invention is to provide a damper device that can maintain the braking torque with a certain accuracy and can improve durability by not applying a large load to the valve.

The present invention is as follows.

(1) A damper device comprising a housing, a viscous fluid contained in the housing, a rotor rotatably housed in the housing, and a seal member that prevents the viscous fluid from leaking between the rotor and the housing. A rotational blade extending in the circumferential direction in a relatively circumferential direction and extending radially to define a receiving portion of the housing containing the viscous fluid, the rotating blade having a viscous fluid passage in the housing or the rotor; And a valve formed of an elastically deformable elastic body which opens the viscous fluid passage while the rotor rotates in one direction and closes the viscous fluid passage while the rotor rotates in the other direction. It is characterized by one.

(2) The damper device (1), wherein the valve is in elastic contact with at least an inner surface of the housing.

(3) The damper device according to (1) or (2), wherein the viscous fluid is made of silicone oil, and the valve is formed of ethylene propylene diene rubber having non-swelling ability with respect to the silicone oil.

(4) A damper device comprising a housing, a viscous fluid contained in the housing, a rotor rotatably housed in the housing, and a seal member that prevents the viscous fluid from leaking between the rotor and the housing. A rotational blade extending in the circumferential direction in a relatively circumferential direction and extending radially to define a receiving portion of the housing containing the viscous fluid, the rotating blade having a viscous fluid passage in the housing or the rotor; A valve for opening the viscous fluid passage while the rotor rotates in one direction, and closing the viscous fluid passage while the rotor rotates in the other direction, and installing the valve on the rotary blade, and the axial direction of the rotor. A wall portion protruding toward the wall is formed in the housing, and orthogonal to the rotation axis of the rotor; And characterized in that between the rotor side with the quadrature component side to the wall surface and orthogonal to the rotational axis line and in which the surface and replaced, portion having a quadrant, a passage through which passes the compressed the viscous fluid.

(The best form to carry out invention)

EMBODIMENT OF THE INVENTION Hereinafter, the Example of this invention is described based on drawing.

1 is an exploded perspective view of a damper device according to an embodiment of the present invention.

In FIG. 1, (D) shows a damper device, and is a synthetic resin agent having rigidity, for example, the case 11 made of polycarbonate, and the synthetic resin agent which has the rigidity which closes the opening part of this case 11, for example. , A polycarbonate cap 21, a synthetic resin attached to the second pivoting blade 17 formed on the bottom of the case 11, for example, a second valve 31 made of polyacetal, and a cap 21. The silicone oil 41 as a viscous fluid accommodated in the case 11 (the accommodating part 15) occluded by the < RTI ID = 0.0 > 1) < / RTI > and the through hole 22 of the cap 21 are rotatably housed. A synthetic resin having a shaft portion 52 protruding from the outside to the outside, for example, a polyacetal made of a rotor 51 and an example attached to the first rotating blade 54 formed on the rotor 51 For example, with ethylene propylene diene rubber having non-swelling property to the silicone oil 41 and having elasticity The zero ring 71 formed of, for example, self-lubricating silicone rubber, which is a seal member which prevents leakage of the silicone oil 41 between the formed first valve 61 and the cap 21 and the rotor 51. ) And an annular sheet made of synthetic resin having an outer circumferential diameter slightly smaller than the outer circumferential diameter of the flange portion 53 of the rotor 51 and disposed between the cap 21 and the flange portion 53 of the rotor 51 ( 81 and a synthetic resin agent, for example, an arm 91 made of a polyacetal agent, which has rigidity attached to the shaft portion 52 of the rotor 51 protruding from the cap 21.

In addition, the housing is comprised from the case 11 and the cap 21.

FIG. 2 is a plan view of the case shown in FIG. 1, FIG. 3 is a front view of the case shown in FIG. 2, FIG. 4 is a bottom view of the case shown in FIG. 2, FIG. 5 is a sectional view taken along line AA of FIG. It is sectional drawing by the BB line of FIG.

In these drawings, the case 11 is the center of the case main body 12 and the bottom face of the bottom part 13 in which the cylindrical wall part 14 was formed by circling the outer edge of the bottom part 13 which is circular in planar shape. Axial direction of bearing part 16 at a symmetrical position centering on the bearing part 16 formed in the circumferential shape and bearing part 16 of the bottom face of bottom part 13 at a predetermined distance from bearing part 16. {The axial direction of the shaft portion 52 of the rotor 51} and two second pivoting blades 17 extending radially to the cylindrical wall portion 14 and the outer periphery of the case body 12; It consists of the arm part 18 formed in the radial direction.

On the inner circumferential upper side of the cylindrical wall portion 14, the lower wide diameter step portion 14a, the conical portion 14b that extends upward from the upper end of the lower wide diameter step portion 14a, and the conical portion 14b of The upper enlarged stepped portion 14c which is continuous to the upper end is formed.

The second rotating blade 17 serves as a wall portion protruding in the direction of the shaft portion 52 of the rotor 51, and the second viscous fluid through which the silicone oil 41 flows through the second rotating blade 17. The notch 17a as a passage and the notch 17a are opened while the rotor 51 rotates in one direction (clockwise in FIG. 2), and the rotor 51 is counterclockwise in the other direction (FIG. 2). Bearing 17b for attaching the second valve 31 which closes the notch 17a during the rotation in the direction of FIG.

And the height of the 2nd rotating blade 17 becomes a horizontal height which the lower surface of the flange part 53 of the rotor 51 makes sliding contact, and the inner peripheral side upper end part of the 2nd rotating blade 17 toward the center. The descending conical surface 17c is provided.

The attachment hole 18a is formed in the front-end | tip part of the arm part 18 mentioned above.

In addition, 15 represents the accommodating part formed in the case main body 12 (housing), and is a part which accommodates the silicone oil 41, and corresponds to the space formed by the case 11 and the cap 21. As shown in FIG.

And the accommodating part 15 of the state which accommodated the rotor 51 in the housing is partitioned by the 1st rotating blade 54 and the 2nd rotating blade 17 of the rotor 51. As shown in FIG.

7 is a plan view of the cap shown in FIG. 1, and FIG. 8 is a cross-sectional view taken along the line C-C in FIG.

In FIG. 7 or FIG. 8, the cap 21 is formed with a through hole 22 through which the shaft portion 52 of the rotor 51 penetrates in the center thereof, and reaches a lower end portion below the through hole 22. The conical part which is enlarged upwards which hits the conical part 14b of the case main body 12 in the outer periphery is formed, and the diameter expansion step part 23 which accommodates the 0 ring 71 which was thin in cylindrical shape is formed ( 24 and an upper enlarged stepped portion 25 which is continuous to the upper end of the conical portion 24 and collide with the upper enlarged stepped portion 14c of the case body 12 are formed.

9 is a plan view of the second valve shown in FIG. 1, FIG. 10 is a front view of the second valve shown in FIG. 9, and FIG. 11 is a bottom view of the second valve shown in FIG. 9.

In these drawings, the second valve 31 extends from the shaft portion 32 rotatably inserted into the bearing notch 17b of the case 11, extends from the shaft portion 32, and cuts the case 11. It consists of the valve part 33 which opens and closes 17a).

Moreover, although the notch 33a is formed in the lower part of the valve part 33, this notch 33a overlaps with the notch 17a of the case 11, and is set to the magnitude | size which does not form an opening.

12 is a plan view of the rotor shown in FIG. 1, FIG. 13 is a front view of the left half of the rotor shown in FIG. 12 in cross section, and FIG. 14 is a bottom view of the rotor shown in FIG.

In these drawings, the rotor 51 has a cylindrical shaft portion 52, a circular flange portion 53 in plan view around the shaft portion 52 on the outer circumference of the shaft portion 52, and this plan. Subsequently formed on the lower surface of the branch portion 53 so as to partition the receiving portion 15 of the case 11 radially (radially in the radial direction) from the outer circumference of the shaft portion 52 at a symmetrical position about the shaft portion 52. It is comprised by the single-wing blade 54.

In the shaft portion 52, a cylindrical recess 52a, which is rotatably engaged with the bearing portion 16 of the case 11, is formed on the bottom face side, and protrudes from the through hole 22 of the cap 21. The cut I cut step 52b is formed in the part to be cut, and the fitting groove 52c of the horizontal direction is formed in the flat part (vertical surface) cut I, respectively.

In the flange portion 53, two holes 53a are formed on a concentric circle centered on the shaft portion 52, for example, at intervals of 180 degrees.

The flange portion 53 is formed so that the pressure due to the compression of the section A of torque generation, which will be described later, is not directly transmitted to the 0 ring 71. The section A and the section of the silicone oil 41 ( It is formed in disk shape so as to close between B) and the 0 ring 71, and to seal the cylindrical wall part 14. As shown in FIG.

In addition, since the positive pressure is generated by the large compression force in the section A when rotating in the torque generation direction (clockwise in FIG. 30), the silicone oil 41 is formed between the cap 21 and the flange portion 53. ) Is a hole in the flange portion 53 of the rotor 51 so as to be a passage for opening the silicone oil 41 and to be located in a section B which becomes a section of negative pressure during torque generation rotation. Since the 53a is formed, the silicone oil 41 penetrated between the cap 21 and the flange portion 53 moves through the hole 53a to the negative pressure section B, and the cap 21 ) And the cap 21 is deformed due to the state in which the silicone oil 41 is held between the flange portion 53 and the flange portion 53.

In addition, since no load is applied to the zero ring 71, the silicone oil 41 does not leak between the rotor 51 and the housing, and durability is improved.

The first rotating blade 54 described above has a cutout 54a as the first viscous fluid passage through which the silicone oil 41 flows, and a cutout while the rotor 51 rotates in one direction (clockwise in FIG. 12). The bearing notch 54b which opens the 54a and attaches the 1st valve 61 which closes the notch 54a while the rotor 51 rotates to another direction (counterclockwise in FIG. 12) is Formed.

Further, the lower side of the joint portion between the shaft portion 52 and the flange portion 53, that is, the portion facing the conical surface 17c of the case 11 becomes the conical surface 55 narrowing downward, and the conical surface 55 Between the conical surface 17c of the case 11 and becomes the passage 58 through which the compressed silicone oil 41 passes.

15 is a plan view of the first valve shown in FIG. 1, FIG. 16 is a front view of the first valve shown in FIG. 15, FIG. 17 is a bottom view of the first valve shown in FIG. 15, and FIG. 18 is a first view shown in FIG. 15. Right side view of the valve.

In these figures, the 1st valve 61 is the shaft part 62 press-fitted in the bearing notch 54b of the rotor 51, and extends from this shaft part 62, and the notch 54a of the rotor 51 is carried out. ) And the valve portion 63 which opens and closes, and extends in the vertical direction at the distal end of the valve portion 63 so as to efficiently receive the pressure of the compressed silicone oil 41 and to the valve portion 63. It is comprised by the protrusion part 64 for closing the notch 54a.

FIG. 19 is a plan view of the arm shown in FIG. 1, FIG. 20 is a front view of part of the arm shown in FIG. 19, and FIG. 21 is an enlarged cross-sectional view taken along the line D-D in FIG. 19.

In these figures, the arm 91 is continuous with the first horizontal portion 92, the inclined portion 93 continuous to the right end of the horizontal portion 92, and the right end portion of the inclined portion 93. It consists of the 2nd horizontal part 94, and each part 92-94 is continued in linear form by planar view.

In the first horizontal portion 92, an I-cut attachment hole 92a is formed at the center of the arc of the left end, and the shaft portion 52 of the rotor 51 is formed at the vertical surface portion of the attachment hole 92a. Fitting protrusions 92b fitted to the fitting grooves 52c formed in the grooves are formed, respectively, and the thickness of the fitting protrusions 92b is made thin so that the fitting protrusions 92b can move back and forth slightly outside the fitting protrusions 92b. Grooves 92c are formed, respectively.

In the second horizontal portion 94, a circular attachment hole 94a is formed at the center of the arc on the right end.

Next, an example of assembly of the damper apparatus D is demonstrated.

First, the shaft part 32 of the 2nd valve 31 is rotatably inserted in the two bearing notches 17b of the case 11, respectively.

Then, the shaft portions 32 of the first valve 61 are press-fitted into the two bearing notches 54b of the rotor 51, respectively.

Next, an appropriate amount of silicone oil 41 is injected into the accommodating portion 15, and the silicone oil 41 is disposed in the recess 52a of the rotor 51, the lower side of the shaft portion 52, and the flange portion 53. After coating, the bearing portion 16 of the case 11 is fitted into the recess 52a to accommodate a part of the shaft portion 52 and the flange portion 53 in the housing portion 15.

In this way, when a part of the shaft portion 52 and the flange portion 53 are accommodated in the accommodating portion 15 into which the silicone oil 41 is injected, a hole 53a is formed in the flange portion 53. Air from the lower portion of the branch portion 53 (in the accommodating portion 15) is discharged upward from the hole 53a, and some silicone oil 41 overflows from the hole 53a to the upper side of the flange portion 53. .

Therefore, air is not mixed in the lower side (in the accommodating part 15) of the flange part 53, and the nonuniformity of the braking torque resulting from the air mixed in the accommodating part 15 can be made small.

Then, the shaft portion 52 of the rotor 51 is fitted to the 0 ring 71, and the annular sheet 81 is placed on the outer edge of the flange portion 53 to mount the annular sheet 81. Then, the through hole of the cap 21 is provided. The conical portion 24 of the cap 21 is inserted into the case 11 while inserting the shaft portion 52 of the rotor 51 into the 22 and pressing the 0 ring 71 into the enlarged stepped portion 23. The convex portion 14b of the ()) is hit, and the upper diameter stepped portion 25 is hit against the upper diameter stepped portion 14c to close the opening of the case 11 with the cap 21.

When the opening of the case 11 is closed by the cap 21 in this manner, most of the air above the flange portion 53 is discharged out of the housing, and the flange portion 53 and the cap 21 are silicone oil 41. And the 0 ring 71 in the enlarged stepped portion 23 to prevent the silicone oil 41 from leaking between the cap 21 and the shaft portion 52 through the annular sheet 81.

Next, between the inside of the upper end of the case 11 and the outer periphery of the cap 21, it welds and seals so that it may wind around by high frequency welding, for example.

Then, when the shaft portion 52 of the rotor 51 protruding from the cap 21 is press-fitted into the attachment hole 92a of the arm 91, the fitting protrusion 92b is fitted into the fitting groove 52c. It can be assembled as shown in FIGS. 22-30, and the assembly of the damper apparatus D is complete | finished.

In this way, when the damper device D is assembled, the first valve 61 is in a state of elastically contacting the inner surface of the housing, that is, the bottom and inner circumferential surfaces of the case 11 and the lower surface of the cap 21. The receiving portion 15 is partitioned.

31 to 34 are diagrams illustrating the operation of the damper device according to one embodiment of the present invention.

Next, the operation will be described.

In the damper device D, for example, the case 11 is attached to the opening of the main body of the device at the arm 18 in the vertical direction, and the arm 91 opens and closes the opening of the main body at the second horizontal portion 94. It shall be attached to the cover body.

The state in which the lid is closed corresponds to FIG. 31, and the state in which the lid is opened corresponds to FIG. 34.

First, in the state in which the cover body shown in FIG. 31 is blocking the opening part of a main body, in order to release the lock mechanism etc. which were not shown in figure and to open a cover body, the arm 91 is shown by the arrow in FIG. When the rotor rotates in the direction, the rotor 51 connected to the lid through the arm 91 rotates in the counterclockwise direction, whereby the accommodation portion between the first valve 61 and the second valve 31 ( Since the silicone oil 41 in the compartment A in the section 15 is compressed, as shown in FIG. 32, the first valve 61 is rotated by the pressure of the silicone oil 41 in the section A in the rotor 51. 2nd rotation in which the 2nd valve 31 was formed in the case 11 by the pressure of the silicone oil 41 in the partition A, and closed the notch 54a of the 1st rotation blade 54 formed in The cutout 17a of the blade 17 is blocked.

Accordingly, the compressed silicone oil 41 in the section A in which the cutouts 54a and 17a are blocked by the first valve 61 and the second valve 31 becomes difficult to escape from this section A. , The braking body rotates in the opening direction.

In addition, the compressed silicone oil 41 in the section A flows out to the section B in the vicinity of the accommodating portion 15 through the passage 58 as shown in an enlarged view in FIG. 30.

When the compressed silicone oil 41 passes through the passage 58, the conical surface 17c of the second pivoting blade 17 forming the passage 58 and the conical surface 55 of the rotor 51 Since it has the orthogonal component surface orthogonal to the rotation axis of the rotor 51, ie, the conical surfaces 17c and 55 are orthogonal surfaces orthogonal to the rotation axis of the rotor 51, and the rotation axis of the rotor 51, respectively. Since the conical surfaces 17c and 55 have an orthogonal surface (orthogonal component surface) orthogonal to the rotation axis of the rotor 51 and can be decomposed into parallel planes parallel to the line, the silicone oil passing through the passage 58 ( The passage 58 may be widened due to the stress in the direction away from the bottom of the case 11 and the rotor 51 by the pressure of 41, but the distance between the passages 58 is kept constant by the rigidity of the housing. do.

Therefore, the distance between the passages 58 is kept constant, whereby the braking torque can be maintained with constant accuracy.

Then, when the cover body rotates to the open position and the cover body collides with the illustrated stopper, the damper device D stops in the state shown in FIG.

In this state, when the lid is rotated to close the opening of the main body, and the arm 91 is rotated in the clockwise direction opposite to the arrow direction shown in Fig. 22, the silicone oil 41 in the section A is not compressed. As the silicone oil 41 in the compartment B is compressed, the first valve 61 is driven by the pressure of the silicone oil 41 in the compressed compartment B, as shown in FIG. 34. 54, the cutout 54a is opened, and the second valve 31 opens the cutout 17a of the second rotary blade 17 by the pressure of the silicone oil 41 in the compressed section B. .

Accordingly, the silicon oil 41 is notched in the cutout 54a of the first pivoting blade 54, between the first pivoting blade 54 and the cylindrical wall portion 14, and notching 17a of the second pivoting blade 17. Since the inner body and the inside of the notch 33a of the valve part 33 move quickly from the compartment B to the compartment A, the operation | movement which a cover body rotates to a blocking direction is made non-braking.

As described above, according to the embodiment of the present invention, the circumferential direction of the silicone oil 41 is moved in a circumferential direction, and radially extends to partition the receiving portion 15 of the housing containing the silicone oil 41. A first rotating blade 54 having a cutout 54a is formed in the rotor 51, the cutout 54a is opened while the rotor 51 rotates in one direction, and the rotor 51 is in the other direction. Since the first valve 61 formed of the elastically deformable elastic body, which closes the notch 54a during the rotation, is provided on the first pivot vane 54, the first valve 61 at the time of braking torque is generated. By reliably closing the notch 54a, the silicone oil 41 passes through only the predetermined passage 58, and can maintain the braking torque with a certain accuracy.

In addition, since the first valve 61 is formed of an elastically deformable elastic body, the durability of the first valve 61 can be improved, and the durability of the damper device D can also be improved.

In addition, since the first valve 61 is elastically contacted with the inner surface of the housing and the outer surface of the rotor 51, the silicone oil 41 certainly passes only the predetermined passage 58, so that the accuracy of the braking torque is achieved. Can be further improved.

In addition, since the first valve 61 is formed of ethylene propylene diene rubber having non-swellability with respect to the silicone oil 41, the malfunction of the first valve 61 against temperature change can be eliminated, and it is inconvenient even in cold regions. Can be used without

Further, a wall portion (second rotating blade 17) protruding toward the shaft portion 52 direction of the rotor 51 is formed in the housing, and a wall portion having an orthogonal component surface orthogonal to the rotation axis of the rotor 51 is formed. Between the surface 17c and the surface 55 of the rotor 51 having an orthogonal component surface orthogonal to the rotation axis of the rotor 51 opposed to the surface 17c, the compressed silicone oil 41 The passage 58 can be widened by the pressure of the silicone oil 41 passing through the passage 58 at the time of braking torque since the passage 58 passes through the passage 58. By being kept constant by the rigidity of the housing, it is possible to maintain the braking torque with a certain accuracy.

And since the rigidity can be made to the housing and the rotor 51 which form the channel | path 58, the durability of the damper apparatus D can be improved.

In addition, the notch 17a is opened while the rotor 51 rotates in one direction, and the second valve 31 which closes the notch 17a while the rotor 51 is rotated in the other direction is rotated secondly. Since it is installed in the blade 17, the compressed silicone oil 41 is passed through at least two cutouts 17a and 54a so as not to generate a braking torque in the silicone oil 41 during non-braking. The braking torque can be reduced low.

Moreover, since the load of the 1st valve 61 can be reduced by providing the 2nd valve 31, the durability of the 1st valve 61 can be improved and the durability of the damper apparatus D can also be improved. have.

And since the annular sheet 81 was arrange | positioned between the cap 21 and the flange part 53 of the rotor 51, the silicone oil (between the cap 21 and the rotor 51 at the time of initial operation | movement ( It is possible to suppress the occurrence of frictional resistance between the cap 21 and the rotor 51 without turning 41.

In the above embodiment, an example in which the second valve 31 is made of synthetic resin is shown, but the second valve may also be formed of an elastic body.

And although the example which used the silicone oil 41 as a viscous fluid was shown, other viscous fluids which have the same function, for example, grease etc., can also be used.

Moreover, the 2nd rotating blade 17 is formed in the housing, the 2nd valve 31 is provided in this 2nd rotating blade 17, and the 1st rotating blade 54 is formed in the rotor 51. Although the example which provided the 1st valve 61 to this 1st rotating blade 54 was shown, the 1st rotating blade is formed in a housing, and a 1st valve is provided to this 1st rotating blade, The same effect can be acquired also if it is set as the structure which provides a 2nd rotating blade to a rotor and attaches a 2nd valve to this 2nd rotating blade.

In this way, the first rotating wing is formed in the housing, the first valve is provided on the first rotating wing, the second rotating wing is formed on the rotor, and the second valve is installed on the second rotating wing. In this case, since both valves are press-fitted and attached, the valves do not come off from the rotating blades, so the assembling work is easy and the damper device D can be efficiently assembled.

Although the example in which the viscous fluid passages are cut outs 17a and 54a is shown, the viscous fluid passages can be reliably opened and closed by using the viscous fluid passages as holes.

Moreover, although the example which protruded the shaft part 52 of the rotor 51 from the housing was shown, the fitting recessed part is formed in the shaft part of the rotor exposed from the housing, without protruding the shaft part of the rotor from the housing, The connecting member may be fitted to the fitting recess to rotate the rotor with respect to the housing.

And although the example in which the channel | path 58 was formed in the conical surface 17c, 55 was shown, of course, you may form only in the orthogonal surface orthogonal to the rotation axis of the rotor 51. As shown in FIG.

Moreover, although the example in which the 2nd valve 31 was formed from the inelastic body was shown, the same effect is acquired even if the 2nd valve is formed from the elastic body.

Moreover, although the example which formed the 0 ring 71 with the self-lubricating silicone rubber was shown, the 0 ring was formed from the ethylene propylene diene rubber which has non-swellability with respect to the silicone oil 41, and it originates in the 0 ring with respect to temperature change. The fluctuation in braking torque can be reduced, and it can be used without any inconvenience even in cold regions.

In addition, the housing is composed of a case 11 and a cap 21, the housing portion 15 of the silicone oil 41 is formed in the case 11, and the shaft portion 52 of the rotor 51 penetrates. The through hole 22 is formed in the cap 21, and an example in which the silicone ring 41 is prevented from leaking between the cap 21 and the shaft portion 52 by the 0 ring 71 is shown. However, it is good also as a structure which forms the accommodating part of a silicone oil in a cap, forms the through-hole which a shaft part of a rotor penetrates in a case, and prevents a silicone oil from leaking between a case and a shaft part by a 0 ring.

According to the present invention, a viscous fluid is moved in a relatively circumferential direction, extends in a radial direction so as to partition a receiving portion of the housing containing the viscous fluid, and a rotating wing having a viscous fluid passage is formed in the housing or the rotor, When the braking torque is generated, a valve made of elastically deformable elastic body is installed on the rotor blade, which opens the viscous fluid passage while the rotor rotates in one direction and closes the viscous fluid passage while the rotor rotates in the other direction. By reliably occluding the viscous fluid passage at, the viscous fluid can only pass through the predetermined passage and maintain the braking torque with a certain precision.

In addition, since the valve is formed of an elastically deformable elastic body, the durability of the valve can be improved, and the durability of the damper device can also be improved.

In addition, since the valve is elastically in contact with at least the inner surface of the housing, the viscous fluid can reliably pass only a predetermined passage, thereby further improving the accuracy of the braking torque.

In addition, since the viscous fluid is made of silicone oil and the valve is made of ethylene propylene diene rubber which is non-swellable with respect to the silicone oil, it is possible to eliminate the malfunction of the valve due to temperature change and to use it in the cold region without inconvenience.

In addition, the viscous fluid is moved in the circumferential direction in a relatively circumferential direction, and extends in a radial direction to partition the accommodating portion of the housing containing the viscous fluid. To open the viscous fluid passage during rotation, and to install the valve on the rotor blade to close the viscous fluid passage while the rotor rotates in the other direction, and to form the wall part protruding toward the axial direction of the rotor in the housing. A passage allowing a compressed viscous fluid to pass between the face of the wall portion having an orthogonal component plane orthogonal to the electron axis of rotation and the face of the rotor having an orthogonal component plane orthogonal to the plane of rotation of the rotor Since the passage can be widened by the pressure of the viscous fluid passing through the passage when braking torque is generated, the interval between passages By being kept constant by the rigidity of the housing, it is possible to maintain the braking torque with a certain accuracy.

And since the member which forms a channel | path can be made rigid, the durability of a damper apparatus can be improved.

Claims (4)

Housings, A viscous fluid contained within the housing, A rotor rotatably housed in the housing, In the damper device comprising a seal member for preventing the viscous fluid from leaking between the rotor and the housing, Moving the viscous fluid weight in a relatively circumferential direction, extending radially to partition the accommodating portion of the housing containing the viscous fluid, the first and second pivot blades having first and second viscous fluid passages; Formed in the housing or the rotor, Formed of an elastically deformable elastic body that opens the first and second viscous fluid passages while the rotor rotates in one direction, and closes the first and second viscous fluid passages while the rotor rotates in the other direction. A damper device, characterized in that the first and second valves are provided on the pivoting blade. The method according to claim 1, And the first valve is in elastic contact with at least an inner surface of the housing. The method according to claim 1 or 2, The viscous fluid is a silicone oil, And the valve is formed of ethylene propylene diene rubber having a non-swelling property with respect to the silicone oil. Housings, A viscous fluid contained within the housing, A rotor rotatably housed in the housing, In the damper device comprising a seal member for preventing the viscous fluid from leaking between the rotor and the housing, Moving the viscous fluid weight in a relatively circumferential direction, extending radially to partition the accommodating portion of the housing containing the viscous fluid, the first and second pivot blades having first and second viscous fluid passages; Formed in the housing or the rotor, Opening the first and second viscous fluid passages while the rotor rotates in one direction, and closing the first and second viscous fluid passages while the rotor rotates in the other direction. Installed on the first and second rotating wing, A wall portion protruding in the axial direction of the rotor is formed in the housing, Passes through the compressed viscous fluid between a surface of the wall portion having an orthogonal component surface orthogonal to the rotation axis of the rotor and a surface of the rotor having an orthogonal component surface orthogonal to the rotation axis opposed to the surface. Damper device characterized in that the passage.

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