JPH07158665A - Hinge damper - Google Patents

Abstract

PURPOSE:To facilitate such layout as to be able to enlarge the volume of a glove box or the like and to make assemblage relatively simple while preventing exposure. CONSTITUTION:A hinge damper is provided with a cylinder body 1 opened on one side face, a rotor 2 rotatably inserted in the cylinder body, 1, an O-ring 5 fitted to the outer peripheral surface of the rotor 2 in such a way as to be in pressure contact with the outer peripheral surface of the rotor 2 and the inner peripheral surface of the cylinder body 1 so as to form an operating chamber jointly with the cylinder body 1 and the rotor 2, silicone oil filled in the operating chamber, a head unit 7 rotatably inserted in the cylinder body 1, more on the opened side face side than the rotor 2 and slip-off prevented by a cap 9, and a clutch spring 8 fitted to the head unit 7 so as to transmit the only unidirectional turning force of the head unit 7 to the rotor 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge damper having a hinge as a damper mechanism for braking a turning force in only one direction.

[0002]

2. Description of the Related Art Conventionally, for example, an opening / closing device for a storage box such as a glove box in a vehicle compartment of an automobile is provided with a damper mechanism for gently rotating an opening lid. And such a damper mechanism is
As disclosed in Japanese Patent No. 68391, it is arranged at a position different from the rotation axis of the lid and brakes the turning force of the lid.

[0003]

The conventional damper mechanism has a lid, that is, a position different from the rotation axis of the glove box, for example, between the vertical surface of the housing and the rear surface of the glove box or the side surface of the housing and the glove box. Since it is arranged between the side surface and the side surface, a space for disposing the damper mechanism is required between the housing and the glove box, so that the volume of the glove box becomes smaller than the total volume.

Further, since the damper mechanism is arranged at a position different from the rotation axis of the glove box, the assembling property is deteriorated. Further, when the glove box is opened, the damper mechanism is exposed, so that the appearance is deteriorated and there is a disadvantage that a layout in which the damper mechanism is not exposed is difficult.

The present invention has been made in order to eliminate the above-mentioned inconvenience, and the volume of the glove box or the like can be increased, the assembling property is relatively simple, and the layout for not exposing is easy. (EN) Provided is a hinge damper capable of easily closing the lid.

[0006]

SUMMARY OF THE INVENTION A hinge damper according to the present invention includes a cylindrical body having one open side, a rotor rotatably inserted in the cylindrical body, an outer peripheral surface of the rotor, and an outer peripheral surface of the rotor. It is attached so as to make pressure contact with the inner peripheral surface of the cylinder,
The O-ring that forms a working chamber with the tubular body and the rotor, the viscous fluid filled in the working chamber, and the cylindrical body on the side surface side that is open from the rotor are rotatably inserted and come off with a ring-shaped cap. It is provided with a stopped head unit and a clutch spring attached to this head unit and transmitting only the turning force in one direction of the head unit to the rotor. An assist spring that stores a biasing force that rotates the head unit in a direction in which the clutch spring does not transmit the rotational force of the head unit to the rotor is provided between the cylindrical body and the head unit.

[0007]

In the hinge damper according to the present invention, when the head unit is rotated in one direction, the rotational force of the head unit is transmitted to the rotor via the clutch spring, so that the rotation of the head unit in one direction is viscous. The fluid is braked, and the assist spring accumulates an urging force for rotating the head unit in the other direction. Then, when the head unit is rotated in one direction and then rotated in the other direction, the rotational force of the head unit is not transmitted to the rotor via the clutch spring, and the assist spring causes the head unit to rotate in the other direction. A biasing force is applied.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1 is an exploded perspective view showing respective parts of a hinge damper according to a first embodiment of the present invention, FIG. 2 is a sectional view of the parts shown in FIG. 1 assembled, and FIG. 3 is a sectional view taken along line AA of FIG. A sectional view and FIG. 4 are sectional views taken along the line BB of FIG. In these figures, reference numeral 1 denotes a cylindrical body with one side open, a support shaft 1x is provided on the inner surface of the bottom in the axial direction, and a plurality of engagement projections 1d in the axial direction are provided on the outer peripheral surface on the bottom side. ,
A locking hole 1h with which a locking claw 9d of the cap 9 described later is engaged is provided on the open side surface side.

Reference numeral 2 denotes a rotor rotatably inserted in the cylindrical body 1, which is composed of a rotor body 3 and a shaft 4 which is fitted into the rotor body 3 and rotates integrally. The rotor body 3 has a concave-convex surface parallel to the axial direction on the bottom side of the peripheral surface, has a hole 3o on the bottom side into which the support shaft 1x is inserted, and has an O side described later on the upper surface side of the peripheral surface. A groove 3d for accommodating the ring 5 is provided, and a fitting groove 3f into which a fitting protrusion 4d provided on the bottom surface side of the shaft 4 is fitted is provided on the upper surface.

Reference numeral 5 denotes an O-ring, which is attached to the groove 3d and is in pressure contact with the inner peripheral surface of the cylindrical body 1 and the outer peripheral surface of the rotor body 3 to form a working chamber with the cylindrical body 1 and the rotor body 3. is there. Reference numeral 6 denotes silicone oil as a viscous fluid that is filled in the working chamber by an appropriate method, and applies a braking force when the cylindrical body 1 and the rotor body 3 relatively rotate.

Reference numeral 7 denotes a head unit, which is rotatably inserted into the cylindrical body 1 on the side surface which is open from the rotor 2.
Hole 7 into which the tip of shaft 4 is rotatably inserted on the bottom side
O is provided, a slit 7s for attaching a clutch spring 8 described later is provided, and a fitting protrusion 7d is provided on the upper surface side. Reference numeral 8 denotes a clutch spring, the bent base end side of which is inserted into the slit 7s and the curled front end side of which is inserted into the hole 7o.

When the head unit 7 rotates in the direction shown by the solid line in FIG. 1, the tip side of the clutch spring 8 winds around the shaft 4, and when it rotates in the direction shown by the dotted line in FIG. The tip side of 8 does not wind around the shaft 4. Reference numeral 9 denotes a ring-shaped cap, which is inserted into the cylindrical body 1 on the side surface side that is open from the head unit 7, and the locking claw 9d provided on the peripheral surface is fitted into the locking hole 1h so that the head unit 7 is It is to prevent the cylinder body 1 from coming off.

5 (a) and 5 (b) are explanatory views of the operation of the glove box constructed by using the hinge damper of the first embodiment, and FIG. 6 is a hinge used as a hinge between the instrument panel and the glove box. It is explanatory drawing which shows a damper. In these figures, D is a hinge damper, I
Is an instrument panel as a housing, G is a glove box, and the hinge damper D is used as a part of a rotation axis X for rotatably supporting the glove box G with respect to the instrument panel I. There is.

In the hinge damper D, the bottom side of the tubular body 1 is fixedly attached to the instrument panel I in a state where the right and left sides of FIG. 2 are reversed, and the upper surface side of the tubular body 1 is attached to the glove box G. It is rotatably supported. Further, the fitting projection 7d of the head unit 7 is engaged with the glove box G so as to rotate integrally therewith. L indicates a fastener, which holds the glove box G in the closed position.

Next, the operation will be described. First, the glove box G is held in the closed state by the fastener L as shown in FIG.
In the state shown in (a), the holding state of the fastener L is released, and the glove box G is moved to the rotation axis X and the hinge damper D.
When the head unit 7 engaged with the glove box G is also rotated by rotating the head unit 7 in the clockwise direction, the turning force of the head unit 7 is transmitted to the clutch spring 8. Therefore, as described above, Since the tip end side of 8 is wrapped around the shaft 4, the turning force of the head unit 7 is transmitted to the rotor 2 and the rotor 2 rotates.

Therefore, when the head unit 7 rotates clockwise, the rotor 2 also rotates clockwise, and the rotation of the rotor 2 is braked by the action of the silicone oil 6, so that the glove box G slowly moves. And Fig. 5
It rotates to the state shown in (b) and becomes the open state. Then, the glove box G in the open state shown in FIG.
When is rotated counterclockwise about the rotation axis X and the hinge damper D, the rotational force of the head unit 7 is transmitted to the clutch spring 8, but as described above,
Since the tip end side of the clutch spring 8 does not wind around the shaft 4, the turning force of the head unit 7 is not transmitted to the rotor 2.

Therefore, when the head unit 7 rotates counterclockwise, the rotor 2 does not rotate and the rotational force of the head unit 7 is not transmitted to the rotor 2, so that the glove box G is not braked in rotation. , Promptly Figure 5
It rotates to the state shown in (a) and is in the closed state.

As described above, according to the first embodiment of the present invention, since the hinge damper D can be arranged as a part of the rotary shaft X, the volume of the glove box G can be increased and the assembling can be performed. Sex is relatively easy.
Since the hinge damper D constitutes a part of the rotation axis X, the layout can be easily arranged so as not to be exposed.

FIG. 7 is an exploded perspective view showing respective parts of a hinge damper according to a second embodiment of the present invention, and FIG. 8 is a sectional view showing a state in which the respective parts of FIG. 7 are assembled. The same or corresponding parts will be denoted by the same reference symbols and description thereof will be omitted. In these drawings, reference numeral 1i denotes an insertion hole, which is provided in a portion of the cylindrical body 1 where the working chamber is not formed, and one end of a torsion spring 10 described later is inserted therein. Reference numeral 7i denotes an insertion hole, which is provided on the bottom surface of the head unit 7 and into which the other end of the torsion spring 10 is inserted.

Reference numeral 10 denotes a torsion spring as an assist spring, and when the head unit 7 rotates in the direction shown by the solid line in FIG. 7, it rotates in the direction in which the winding loosens and attaches the head unit 7 in the direction shown by the dotted line. It is the one that accumulates the energizing force.

Next, an operation different from that of the first embodiment when used as shown in FIGS. 5 and 6 will be described. As described above, when the glove box G is opened, the torsion spring 10 rotates in the direction in which the winding is loosened by the turning force that opens the glove box G. Therefore, the direction in which the glove box G is closed via the head unit 7 It will accumulate the urging force to urge.

Therefore, the turning force for opening the glove box G is also braked by the torsion spring 10. When the glove box G in the open state is closed, the glove box G is urged by the accumulated force of the torsion spring 10 via the head unit 7. The biasing force accumulated in the torsion spring 10 is set so as to maintain the open state of the glove box G without being able to overcome the weight of the glove box G in the open state and close the glove box G by itself. Has been done.

As described above, according to the second embodiment of the present invention, in addition to the effect obtained in the first embodiment, the biasing force for biasing the open glove box G in the closing direction is applied to the torsion spring 10. Therefore, when the glove box G is closed, the glove box G can be easily closed.

In the above embodiment, an example of the clutch spring 8 is shown in FIGS. 1 and 7, but in addition to this,
Even if you use a coil spring as a clutch spring,
It can function similarly. And the rotor body 3
Although the example in which the rotor 2 is configured by the shaft 4 and the shaft 4 has been shown, the rotor body 3 and the shaft 4 may be integrally configured.

[0025]

As described above, according to the present invention, since the hinge damper is constructed so that only the rotational force in one direction of the head unit is transmitted to the rotor by the clutch spring, a part of the rotating shaft is provided. Since a hinge damper can be provided as the above, the volume of the glove box or the like can be increased, and the assembling property becomes relatively simple. Further, since the hinge damper constitutes a part of the rotating shaft, the layout in which it is arranged so as not to be exposed can be facilitated.

Further, between the cylindrical body and the head unit,
The clutch spring is equipped with an assist spring that stores the biasing force that rotates the head unit in a direction that does not transmit the rotational force of the head unit to the rotor, so when closing the glove box, etc., the glove box etc. can be easily closed. Can be made.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing parts of a hinge damper according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of a state in which the parts shown in FIG. 1 are assembled.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a sectional view taken along line BB of FIG.

5A and 5B are operation explanatory views of a glove box configured by using the hinge damper of the first embodiment.

FIG. 6 is an explanatory view showing a hinge damper used as a hinge between the instrument panel and the glove box.

FIG. 7 is an exploded perspective view showing parts of a hinge damper according to a second embodiment of the present invention.

FIG. 8 is a cross-sectional view of a state in which the parts shown in FIG. 7 are assembled.

[Explanation of symbols]

 D Hinge damper 1 Cylindrical body 1h Locking hole 1i Insertion hole 2 Rotor 3 Rotor body 3d Groove 4 Shaft 5 O-ring 6 Silicone oil 7 Head unit 7o hole 7s Slit 7d Fitting protrusion 7i Insertion hole 8 Clutch spring 9 Cap 9d Locking Claw 10 torsion spring

Claims (2)

[Claims] 1. A cylindrical body having one open side, a rotor rotatably inserted in the cylindrical body, and an outer peripheral surface of the rotor so as to come into pressure contact with the outer peripheral surface and the inner peripheral surface of the cylindrical body. An O-ring that is attached to the cylinder body and the rotor to form a working chamber, a viscous fluid filled in the working chamber, and the cylindrical body on the side surface side that is open from the rotor,
A head unit that is rotatably inserted and is retained by a ring-shaped cap; and a clutch spring that is attached to the head unit and that transmits only one-way turning force of the head unit to the rotor. Hinge damper. 2. The hinge damper according to claim 1, wherein between the cylinder and the head unit, the clutch spring rotates the head unit in a direction in which the rotational force of the head unit is not transmitted to the rotor. A hinge damper characterized by having an assist spring for accumulating a biasing force to move.