JP3610535B2 - Rotating retractable assist grip - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rotary retractable assist grip provided at a door opening or the like of an automobile and capable of rotating a grip body between a storage position and a use position.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, an assist grip is provided on an upper edge of a door opening of an automobile or the like as an auxiliary tool for maintaining the posture of an occupant during vehicle travel.
[0003]
In order to ensure a sufficient space between the occupant and the assist grip, a rotating retractable assist grip is used in which the grip body rotates to a retracted position close to the vehicle body when not in use. There is.
[0004]
7 to 9 show an example of such a rotation retractable assist grip. The rotary retractable assist grip 50 includes a grip body 51 having leg portions 53 having pivot portions 54, 54 at both ends of the grip portion 52, and a grip body 51 via a support shaft 57. And a mounting base 55 for rotatably supporting the gap between them and a return spring 58 having a circumferential torsional elastic force and urging the grip body 51 to the retracted position. It had been. Reference numeral 56 denotes a shaft hole into which the support shaft 57 is fitted.
[0005]
In use, the grip body 51 in the retracted position is rotated to the use position away from the vehicle body 60 against the urging force of the return spring 58, and when the hand is released from the grip body 51, the return spring 58 is twisted. By the generated force, the grip body 51 is configured to return to the storage position by giving a rotational motion.
[0006]
During this return movement, the grip body 51 comes into contact with the mounting base 55 and the like to generate a loud hitting sound. Therefore, generally, a cushion body 59 made of a nonwoven fabric or rubber or the like is bonded to the inside of the leg portion 53 to reduce or prevent a hitting sound during a return movement.
[0007]
[Problems to be solved by the invention]
However, in the rotary retractable assist grip having such a conventional configuration, when the cushion body is permanently deformed due to the change over time, the return rotational motion is not suppressed, and the grip body directly abuts the mounting base or the like. There was a problem that occurred. The present invention has been made in view of the above problems, and an object of the present invention is to provide a rotary retractable assist grip that can stably generate long-term hitting sound during a return movement. Is.
[0008]
[Means for Solving the Problems]
The present invention has been made to achieve the above object,
The rotary retractable assist grip according to the present invention includes a grip body and a leg body provided at both ends of the grip section, each of which has a pivot portion and a braking surface orthogonal to the pivot portion axis. And a mounting base that rotatably supports the grip body via a support shaft between a retracted position and a use position; a friction surface that is fixed to the mounting base; and the friction surface of the grip body A brake member provided to face the braking surface, an axial compression resilient force, and a circumferential torsional resilient force are fitted on the support shaft to press the braking member and the grip The frictional surface of the braking member is pressed against the braking surface by the compression elastic force, and the grip main body is rotated and biased toward the retracted position by the torsional elastic force. A return spring, A rotary retractable assist grip characterized and.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0010]
The rotary retractable assist grip denoted by reference numeral 1 in the drawing includes a grip body 10 having pivot portions 15 and 18 and a braking surface 17 on the leg portions 12 at both ends of the grip portion 11, and the grip body 10 between a storage position and a use position. A pair of mounting bases 20 that rotatably support the gap, a control member 30 having a friction surface 31, and a return spring 35 having a torsional elastic force and a compression elastic force are configured.
[0011]
The grip body 10 is made of a synthetic resin material and has a grip portion 11 having a substantially circular cross section and a pair of leg portions 12 and 12 that are curved and continuous at both ends thereof, and is formed in a substantially U shape. In the following description, only one leg 12 will be described, and description of the other symmetric leg 12 will be omitted.
[0012]
The leg portion 12 is formed with opposing pivot portions 15 and 18, and shaft holes 16 and 19 on the same axis are formed, respectively. A planar braking surface 17 that is orthogonal to the axis of the shaft hole 16 is formed on the inner side surface of the pivot portion 18.
[0013]
The mount 20 includes support portions 21a and 21b protruding upward, and shaft holes 22 and 23 on the same axis are formed in the support portions 21a and 21b, respectively. In addition, a through hole 24 penetrating vertically is provided between the support portions 21a and 21b, and a fixing portion formed by notching a rib for attaching the braking member 30 in the vicinity of the through hole 24 on the bottom surface of the mounting base 20. 25 is provided. Reference numeral 26 denotes an attachment hole, and 27 denotes an attachment surface.
[0014]
In this embodiment, the braking member 30 is made of a synthetic resin material having rubber-like elasticity and wear resistance, for example, a styrene elastomer, and a flat friction surface 31 and a hole 32 into which the support shaft 34 can be loosely inserted, In addition, it is formed with a locking portion 33 that can be fitted and fixed to the fixing portion 25. The braking member 30 may be a hard synthetic resin material, and the return of the grip body 10 depends on the coefficient of friction between the friction surface 31 and the braking surface 17 and the compression and torsional elasticity of the return spring 35. The rotation speed is determined.
[0015]
The return spring 35 is wound in the shape of a compression coil spring and a torsion coil spring by a spring steel wire, and engagement ends 36a and 36b extending in the centrifugal direction are provided at both winding ends, and between the axial ends. , And has a circumferential torsional elastic force between the engagement ends 36a and 36b.
[0016]
The above-mentioned grip body 10 is pivotally attached to the mounting base 20 by penetrating the support shaft 34 with the shaft holes 16 and 19 of the pivot mounting portions 15 and 18 being aligned with the shaft holes 22 and 23 of the mounting base 20. Further, the braking member 30 is attached with the friction surface 31 facing the braking surface 17 of the pivoting portion 15, the hole 32 being externally fitted to the support shaft 34, and the locking portion 33 being fitted to the fixing portion 25. The return spring 35 is externally fitted to the support shaft 34 between the inner surface of the pivot 18 and the braking member 30, the engagement end 36 a is engaged with the mounting base 20, and the engagement end 36 b is connected to the leg 12. It is arranged to be engaged. The grip body 10 is always urged to rotate to the retracted position in close contact with the mount 20 by the torsional elastic force of the return spring 35, and the compression elastic force of the return spring 35 is applied to the inner surface of the pivot portion 18. And the braking member 30, the friction surface 31 of the braking member 30 is pressed against the braking surface 17.
[0017]
The rotary retractable assist grip 1 is attached to the vehicle body 40 by using a mounting screw (not shown) through the mounting hole 26 with the mounting surface 27 of the mounting base 20 in contact with the vehicle body 40.
[0018]
Next, the operation of the rotary retractable assist grip 1 configured as described above will be described.
[0019]
When not in use, the grip body 10 is biased by the torsional elastic force of the return spring 35 and is in the retracted position where the leg portion 12 is in close contact with the mounting base 20 (see FIGS. 1 and 6). Further, the compression elastic force of the return spring 35 presses the friction surface 31 of the braking member 30 against the braking surface 17.
[0020]
At the time of use, the grip body 10 is raised to a use position separated from the mounting base 20. At this time, pulling is performed against the torsional elastic force of the return spring 35 and the frictional force between the friction surface 31 and the braking surface 17. As a result, the return spring 35 is caught to obtain the maximum torsional elastic force and urges the grip body 10 toward the retracted position, and the compression elastic force of the return spring 35 presses the friction surface 31 against the braking surface 17. doing.
[0021]
When the hand is released from the grip body 10 in use, the grip body 10 returns and rotates toward the retracted position by the torsional elastic force of the return spring 35. At this time, the return rotation speed of the grip body 10 is controlled by the friction force generated between the friction surface 31 and the braking surface 17 due to the compression elastic force of the return spring 35.
[0022]
By this control, the return rotation speed of the grip body 10 is decelerated, and the final speed immediately before the grip body 10 abuts against the mounting base 20 becomes extremely small, preventing the occurrence of hitting sound when contacting the mounting base 20. Yes.
[0023]
The present invention is not limited to the above description and examples, and the embodiments can be changed without departing from the technical idea of the present invention. For example, you may provide a braking member in the both sides of the axial direction of a return spring. Further, a metal flat washer may be interposed between the return spring and the braking member. In addition, the pair of mounting bases in the drawing may be integrally formed on the left and right.
[0024]
Further, the return rotation speed control mechanism of the present invention can be applied to an automobile console box, a glove box, a retractable coat hook, etc. in addition to an assist grip.
[0025]
【The invention's effect】
As described above, according to the retractable assist grip of the present invention, the return rotation speed of the grip body is controlled by pressing the braking member with the compression spring force of the return spring. Can be prevented.
[0026]
In addition, since the braking force of the grip body rotation is obtained by the compression spring force of the return spring, a stable braking force can be obtained even if the braking member is deformed due to heat or a change over time, and it is stable over the long term. It can demonstrate anti-hitting performance. Furthermore, there is an effect that can be implemented at a low cost without increasing the number of components.
[Brief description of the drawings]
FIG. 1 is an external perspective view of a rotary retractable assist grip according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view of the same.
FIG. 3 is an exploded perspective view seen from the bottom side of the mounting base.
FIG. 4 is a perspective view of a mounting base portion in a use position.
FIG. 5 is a cross-sectional view of the main part in the bearing axis direction.
FIG. 6 is a cross-sectional view in a direction perpendicular to the support shaft of the main part.
FIG. 7 is an exploded perspective view of a conventional example.
FIG. 8 is a perspective view of the mounting base portion in the use position.
FIG. 9 is a cross-sectional view in a direction perpendicular to the bearing shaft.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rotating retractable assist grip 10 Grip main bodies 15 and 18 Pivoting part 17 Braking surface 20 Mounting base 25 Fixing part 30 Braking member 31 Friction surface 34 Bearing shaft 35 Return spring

Claims (1)

A grip body having a grip portion and leg portions provided at both ends of the grip portion, each leg portion having a pivot portion and a braking surface perpendicular to the pivot portion axis;
A mounting base for rotatably supporting the grip body between a storage position and a use position via a support shaft;
A braking member having a friction surface and fixed to the mounting base, the friction surface being provided facing the braking surface of the grip body;
It has an axial compressive elastic force and a circumferential torsional elastic force, is fitted on the bearing shaft, presses the braking member, and is engaged with the grip body and mounting base. A return spring that presses the friction surface of the braking member against the braking surface by the compression elastic force and urges the grip body to rotate toward the retracted position by the torsional elastic force;
Rotating retractable assist grip characterized by comprising:

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