JPH02300479A - Handle device - Google Patents

Abstract

PURPOSE:To make gentle revolution at the time of closing by installing a spring turned and energized in the direction of closing when a handle with a shaft section is opened while interposing viscous grease between the shaft member and a fixing side member. CONSTITUTION:A handle 1 and a shaft member 3 are unified, and a return spring 8 giving returning force in the direction of closing when the handle 1 is rotated and opened is mounted. An inner fin 4 is fixed to the shaft member 3, and set up rotatably to a fixing side member 5. Viscous grease 7 is interposed between the inner fin 4 and the fixing member 5. When the handle is returned, the handle is turned at slow speed by the shearing force of viscous grease. Accordingly, impact noises at the time of closing can be suppressed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a handle device that is attached to a door of a building or an automobile, or a lid of a container, and is operated to open the door.

[Prior Art] The handle device attached to the above-mentioned member has a mechanism in which when the handle is rotated in the unlocking direction, the handle automatically rotates in the locking direction and returns to its original state. There is. For this reason, the handle device has conventionally included a return spring that biases the handle to rotate in the locking direction. This return spring uses a spring that rotates the handle with a large repulsive force because it is necessary to securely lock the lock.

[Problem to be solved by the invention] However, if the repulsive force of the return spring is large, the return rotation of the handle will be sped up, resulting in a strong impact at the time of return, increasing the size of the impulse platform, and causing failure. It is also accompanied by

Therefore, it is an object of the present invention to provide a handle device that can operate with a good feeling by slowing down the return speed of the handle even when the repulsive force of the return spring is large.

[Means for Solving the Problems] The handle device of the present invention includes a shaft member that is rotatably attached to a fixed side member and rotates integrally with the handle, and a handle that locks the handle by rotating the handle in the unlocking direction. The present invention is characterized in that it includes a return spring that biases rotation in the direction, and viscous grease interposed between the shaft member and the stationary side member. Further, the fixed side member of the present invention may be formed with a contact surface that restrains the rotation of the fixed side member by surface contact with an external support member.

[Function] In the above configuration, the handle rotates in the locking direction by the spring force of the return spring and returns automatically, but when the handle rotates, shearing force is applied to the viscous grease between the shaft member and the fixed side member. , the handle rotates at a gentle speed. Further, the contact surface of the stationary side member comes into surface contact with the external support member, and the stationary side member is rotationally locked.

[Embodiment Figures 1 to 4 show an embodiment in which the present invention is applied to a door of a building.A shaft with a rectangular cross-section is attached to the upper right side of the handle 1 formed into an inverted "L" shape. 3 are connected to each other, and an inner fin 4 is fitted onto the shaft 3. The shaft 3 and the inner fin 4 constitute a shaft member that rotates together with the handle 1, and the inner fin 4 has a portion that contacts the bent end of the handle 1 that is bent in the radial direction, and is further folded to have an inverted cross section. It is formed into a U-shape. A bushing 2 is fixed to the door surface 9 together with the bottom plate 6 with screws, and screw holes 2a into which screws are inserted are formed in the upper and lower parts thereof. This bushing 2 serves as an external support member, and an outer fin 5 that serves as a fixed side member is attached to this bushing 2. The outer fins 5 are bent to have a U-shaped cross section, and interlock with the inner fins 4. As shown in FIG. 3, both side surfaces of the outer fin 5 are formed with arcuate contact surfaces 5a, which contact the inner surface of the bushing 2.

The outer fin 5 has such a bush 2 on the contact surface 5a.
Rotation is restrained by surface contact with the inner fin 4 of the shaft member, so that the inner fin 4 of the shaft member is a fixed side member that rotatably supports the inner fin 4. According to such attachment by surface contact, the rotation of the outer fin 5 can be restrained simply by fitting it into the bushing 2 without using screws or adhesives, which has the advantage of facilitating assembly and reducing the number of parts. Furthermore, since the reaction force due to the rotation of the inner fin 4 is received by the entire contact surface 5a, the mechanical strength is increased. In FIG. 2, reference numeral 8 denotes a return spring that biases the handle l to rotate in the locking direction, and in this embodiment, a torsion spring is used. This return spring 8 has a shaft 3 loosely inserted into its coil portion, and a hook portion 8a at one end.
is locked to the bottom plate 6, and the hook portion 8b at the other end is inserted into the shaft 3 from a direction perpendicular to the axial direction.

As a result, the return spring 8 biases the handle l in the locking direction via the shaft 3. In this case, the return spring 8 is assembled with initial torque stored, that is, in a state where it is tightened to some extent, so as to reliably return the handle 1 to the locked position.

A viscous grease 7 is interposed between the front inner fin 4 and the outer fin 5. When the inner fin 4 rotates with respect to the outer fin 5, the viscous grease 7 generates a shearing force that acts to reduce the rotational speed of the inner fin 4, so that the handle 1 resists the spring force of the return spring 8. It will automatically return at a slow speed.

In FIG. 1, 10 is a stopper key formed below the bent end of the handle 1, and an arcuate key groove 11 of a predetermined length is formed on the inner surface of the bush 2 in correspondence with this stopper key lO. There is. A stopper key 10 is inserted into a keyway 11 in the gap for assembling the handle 1 to the bushing 2, and the rotation range of the handle 1 is regulated by the length of the keyway 11.

As a result, the handle 1 rotates within the range between the solid line and the two-dot chain line in FIG.

In the above configuration, when the handle 1 is rotated in the unlocking direction, the shaft 3 rotates integrally, so the return spring 8 is tightened and spring force is accumulated. For this reason,
When you let go of the handle 1, the return spring 8 rotates the shaft 3 in the opposite direction, thereby automatically rotating the handle 1 in the locking direction.At this time, the inner fin 4 rotates integrally with the shaft 3, A shearing force acts on the viscous grease 7 interposed between the outer shaft 5 and the outer shaft 5 . As a result, the handle 1 rotates gently in the locking direction, reducing the impact upon return and eliminating impact noise, improving the operational feel.

Furthermore, failures caused by impact can also be prevented.

5 to 7 show an embodiment in which the present invention is applied to an outside knob of an automobile. A pair of left and right rotating arms 20
A handle plate 21 is attached to the lower part of the handle plate 21 to provide a handle for unlocking the lock. Further, the rotating shaft 22 is passed between the rotating arms 2o. Both ends 22a of the zero-rotating shaft 22, which are fitted into the rotating arms 20, are formed in a rectangular shape.
is a shaft member that rotates integrally with the rotating arm 20.

Further, a fixed vibrator 23 is externally inserted into the rotating shaft 22 except for both ends, and a viscous grease 24 is inserted between the fixed vibe 23 and the rotating shaft 22. Here, the fixed vibrator 23 is attached to the mounting bracket 2 which has a U-shaped plane.
5. The hook is passed and fixed. The outer surface of the mounting bracket 25 is a contact surface 25a that comes into surface contact with a support member 26 such as an automobile door, and rotation of the mounting bracket 25 is restrained by this surface contact.

Therefore, in this embodiment, the stationary side member is constituted by the stationary vibrator 23 which is hooked and fixed to the mounting bracket 25. 27 is inserted into the fixed vibrator 23, and the hook portion 27a at one end is brought into contact with the mounting bracket 25, and the hook portion 27b at the other end is hooked to one of the rotating arms 20 to move the rotating arm 20 in the locking direction. This is a return spring that biases the rotation.

In such a configuration, when the handle plate 21 is rotated in the direction of the arrow in FIG. 6, the rotating arm 20 and the rotating shaft 22 are rotated together, and the return spring 27 is tightened. Therefore, when the handle plate 21 is released, the handle plate 21 rotates in the opposite direction together with the rotary arm 20 and returns to its original position. At this time, the rotary shaft 22 rotates and the viscous By using the grease 24, it rotates at a gentle speed.

Figures 8 to 11 show an embodiment in which the present invention is applied to an inside knob of an automobile door.
A handle 31 is housed in a knob box 30 equipped with a handle 31. Both sides of the handle 31 are pivotally supported by the knob box 30 so as to rotate in a direction in which it is pulled out from the knob box 30. One of these pivot supports is composed of a rotating shaft 32 that serves as a shaft member.The zero-rotation shaft 32 has a square columnar portion 32a formed at one end of a circular columnar portion.
A flange 32b is formed at the other end. The rotating shaft 32 is attached so as to rotate integrally with the handle 31 by fitting the square columnar part 32a into a square hole formed in the shaft support of the handle 31, and the flange part 32b is attached to the outside of the side surface of the knob box 30. A circular columnar portion is rotatably supported by the knob box 30 so as to be positioned on the opposite side.

A fixed vibrator 33 serving as a fixed member is inserted into the circular columnar portion of the rotating shaft 32. Fixed vibrator 3 here
3 is integrally provided with a flange plate 36 in contact with the knob box 30, and the flange portion 30a of this flange plate 36
The contact surface 36a to the back surface of is formed as a flat surface, and
The contact surface 36a abuts against the flange portion 30a, so that rotation is restricted and the flange portion 30a is mounted. A viscous grease 34 is sealed between the rotating shaft 32 and the fixed vibrator 33.

Further, a return spring 35 is fitted onto the fixed vibrator 33, and each hook 35a, 35b of the spring 35 connects to the flange portion 32b of the rotating shaft 32 and the fixed vibrator 33.
flange plates 36, respectively. In such a structure, when the handle 31 is rotated back after being rotated in the direction of the arrow in FIG. 10, the viscous grease 34 acts and a gentle rotation can be confirmed.

As shown in FIG. 10, the handle 31 has stop surfaces 31a and 3 that are inscribed in the knob box 30 when the handle 31 rotates.
1b is formed. These stopper surfaces 31a and 31
b, the handle 31 is restricted to operate within a rotation range of about 90 degrees.

[Effects of the Invention] As explained above, in the present invention, viscous grease is interposed between the shaft member that rotates by the spring force of the return spring and the fixed side member, so that the return rotation of the handle in the locking direction is gradual. Therefore, the impact is small, and the occurrence of impact noise and failure can be suppressed. Furthermore, since the rotation of the fixed side member is restrained by surface contact with an external support member, the number of parts is small and assembly is easy.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of the first embodiment of the present invention, FIG. 2 is a cross-sectional view thereof, FIGS. 3 and 4 are a cross-sectional view taken along the line In--III and a front view thereof, and FIG. 5 is a second embodiment of the present invention. A perspective view of the example, FIGS. 6 and 7 are a side view and a sectional view taken along the line ■-■, FIG. 8 is a perspective view of the third embodiment, FIG. 9 is a front view thereof, and FIGS. Figure 11 shows its X-x and XI-
It is a sectional view taken along the line XI. 1.21.31... Handle, 3.22.32... Shaft member, 5.23.33... Fixed side member, 7.24.34... Viscous grease, 8.27.35.・Return spring, 5a, 25
a, 36a... contact surface. tB convex? spring 51

Claims (2)

[Claims] (1) a shaft member that is rotatably attached to the fixed side member and rotates integrally with the handle; a return spring that biases the handle to rotate in the locking direction when the handle rotates in the unlocking direction; A handle device comprising viscous grease interposed between a shaft member and a fixed side member. (2) A handle device characterized in that the stationary side member is formed with a contact surface that restricts rotation of the stationary side member by surface contact with an external support member.