JP3330550B2 - Car door outside handle device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a door outside handle device for a motor vehicle.

[0002]

2. Description of the Related Art As a door outside handle device of an automobile, one disclosed in Japanese Patent Application Laid-Open No. Hei 10-205181 is known. In this conventional example, the handle body is rotatably supported on the handle case by a pivot passing through the handle body and the handle case.
A torsion spring is wound around the pivot, and urges the handle body toward the initial rotation position.

[0003]

However, the above-mentioned prior art has the following disadvantages. That is, the torsion spring is wound around a pivot that pivotally supports the handle main body, and the return force increases substantially in proportion to the rotation angle of the handle main body. If the spring constant of the torsion spring is large, the resistance when the handle body is rotated until the latch inside the door is released (full stroke state) becomes large, and a good operational feeling cannot be obtained. This problem can be solved by reducing the spring constant of the torsion spring, but in order to reduce the spring constant, it is necessary to increase the number of turns and the center diameter of the torsion spring. Has the disadvantage that it becomes larger.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks, and an object of the present invention is to provide a door outside handle device for an automobile having a good operability without excessive operating force even in a position near a full stroke state. And

[0005]

SUMMARY OF THE INVENTION According to the present invention, the above-mentioned object is achieved as shown in FIG. 1 by being urged by a torsion spring 1 to an initial rotation position and rotatably connected to a handle case 2. A door outside handle device for an automobile having a handle body 3, wherein a spring-wound shaft 4 is fixed to the handle body 3 at a position appropriately spaced from a pivotal support position to the handle case 2, One end of the torsion spring 1 is connected to the handle body 3 and wound around the spring winding shaft 4, and the other end of the torsion spring 1 is connected to the handle case 2.
The present invention is attained by providing a door outside handle device of an automobile which comes into sliding contact with a cam portion 5 formed in the vehicle.

The torsion spring 1 fixes or locks one leg 1a to the handle body 3 and the other leg 1b.
The contact is movably locked to a cam portion 5 of the handle case 2, and the handle body 3 is held at an initial rotation position (a state in which no operating force is applied to the handle body 3) by a reaction force received from the cam portion 5. . When the handle body 3 is rotated about the pivot 7 from the initial rotation position, the entire torsion spring 1 wound around the spring winding shaft 4 of the handle body 3 rotates together with the handle body 3 and the other of the torsion spring 1 The leg 1b moves along the cam portion 5 while changing the contact position with the cam portion 5. The cam portion 5 increases the deflection angle of the torsion spring 1 by restricting the movement of the other leg 1b accompanying the movement of the winding center of the torsion spring 1.

[0007] The torsion spring 1 is a handle body 3
In contrast to the conventional handle device which is arranged concentrically with respect to the pivot 7 of the steering wheel, the operating force increases proportionally as the operating angle of the handle body 3 increases, whereas in the present invention, as shown in FIG. Since the increment δθ of the deflection angle of the torsion spring 1 does not coincide with the increment δα of the rotation operation angle of the handle body 3, it is determined by the position of the cam portion 5 and the shape of the contact surface of the cam portion 5 with the leg 1b. There are the following advantages.

That is, in the conventional example, the change in the resistance (resistance torque) when the handle main body 3 is operated changes linearly with an increase in the rotation operation angle of the handle main body 3, and is not necessarily required when the user performs the opening operation. Does not match the feel of For this reason, the conventional example has a drawback that the operational feeling of the handle main body 3 is poor, but in the present invention, the change in the resistance torque can be appropriately set by the position of the cam portion 5 or the design of the contact surface shape. , The operation feeling can be further improved.

Further, when the torsion spring 1 is mounted with an initial deflection in order to prevent rattling of the handle main body 3 in the initial rotation position, in order to surely prevent rattling, the handle main body 3 is required. It is necessary to make the initial resistance torque at the initial rotation position larger than a predetermined threshold value in consideration of the weight and the like. In order to increase the initial resistance torque at the initial rotation position and to reduce the operating force for opening, particularly the resistance torque at the end of the stroke on the opening operation side as much as possible, in the conventional example, as described above. It is necessary to reduce the spring constant. For this purpose, it is necessary to increase the center diameter or increase the number of windings, so that the mounting space for the torsion spring 1 increases, but the rotation angle of the handle body 3 does not match the deflection angle of the torsion spring 1. In
It does not require that the spring constant is small. That is, even if the spring constant is large, the change in the deflection angle is reduced, so that a high initial resistance torque can be exhibited and the resistance torque near the stroke end position can be suppressed to a low value. Further, in the conventional example, in order to increase the initial resistance force by using the torsion spring 1 having a small spring constant, it is necessary to increase the initial deflection angle, and mounting work is troublesome. In the present invention in which the torsion spring 1 can be used, the initial bending angle is small, so that the mounting workability is improved.

According to a second aspect of the present invention, there is provided a torsion splitter.
1 to the initial rotation position
Self equipped with a handle body 3 rotatably connected to the
A door outside handle device for a vehicle, wherein
The handle body 3 has a pivotal position to the handle case 2
The counterweight 6 is fixed at a position spaced from the
The torsion spring is attached to the counterweight 6.
Reference numeral 1 denotes a door outside handle device of an automobile to be wound .

A counterweight 6 is fixed to the handle body 3 for canceling the rotational force in the opening direction of the handle body 3 generated when an impact force is applied to the vehicle body. In the present invention in which the torsion spring 1 is wound around the counterweight 6, since the total weight of the counterweight 6 and the torsion spring 1 functions as a counterweight element, the weight of the counterweight 6 itself can be reduced.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 to 4, a door outside handle device for an automobile has a handle case 2 formed in a dish shape by recessing a handle accommodating recess 2a in the center of the surface, and a handle. It has a handle main body 3 rotatably supported by the case 2 and a torsion spring 1 for urging the handle main body 3 toward the initial rotation position.

The handle body 3 is provided with a handle 3a housed in a handle housing recess 2a of the handle case 2 and a handle arm extending to the back side of the handle case 2 through an arm insertion hole 2b formed in the handle case 2. 3b
And is rotatably supported by the handle case 2 by a pivot 7 inserted into the handle arm 3b. A holder fitting hole 3c for fitting a rod holder (not shown) is provided at the distal end of one of the handle arms 3b, and a connecting rod whose one end is connected to a lock device (not shown) inside the door body. Are connected to each other. With the handle case 2 fixed to the door panel of the automobile, the handle body 3 is rotated clockwise about the pivot 7 from the initial rotation position shown in FIG.
That is, when the lock device is rotated so as to be pulled out to the side of the vehicle body, the lock device operates and the engagement between the lock device and the striker (not shown) of the vehicle body is released, and the door body can be opened.

In order to prevent the handle body 3 from rotating relatively in the opening direction due to inertial force when a lateral impact is applied to the vehicle body and to prevent the door body from being opened carelessly, , A counter weight 6 is fixed. The counterweight 6 pivots to the handle case 2 so as to apply a rotational force in the closing direction to the handle body 3 when an impact load is applied, and to cancel the inertial force of the handle body 3 in the opening operation direction. 7 is fixed at a position separated by an interval L as appropriate. In this embodiment, one end of the counterweight 6 is inserted into the weight holding hole 3d of one handle arm 3b, and the other end is fitted into the weight fitting portion 3e of the other handle arm 3b. And fixed to the handle body 3 (see FIG. 2).

The torsion spring 1 is mounted to bias the handle body 3 in the direction of the initial rotation position, and is formed by extending legs 1a and 1b at both ends of the coil portion 1c. The torsion spring 1 is mounted by using the counter weight 6 as a spring winding shaft 4, and one leg 1a of the torsion spring 1 in which the coil portion 1c is fitted on the spring winding shaft 4 is shown in FIG. Thus, the other leg 1b is pressed against the cam portion 5 of the handle case 2 as shown in FIG. The cam portion 5 is formed by erecting a metal pin on the side wall of the body pivoting arm portion 2c of the handle case 2, and a tip of the cam portion 5 for preventing the leg 1b of the torsion spring 1 from falling off. A large diameter head 5a is provided.

The operation of the torsion spring 1 will be described with reference to FIGS. Leg 1 of torsion spring 1
In the no-load state (initial state) between a and 1b, FIG.
, A cross angle of θ0 is formed, and when the other leg 1b is mounted on the cam portion 5 and the torsion spring 1 is mounted, the cross angle increases from θ0 to θ1, and the coil portion 1c has An initial deflection of θ is given. In this state, the elastic restoring force generated in the coil portion 1c causes the leg 1b
Presses the cam portion 5 with the force F, and the reaction force generates a rotational force T0 on the handle body 3, and the handle body 3 comes into pressure contact with an initial rotation position setting stopper (not shown) provided at an appropriate position. The rattling at the initial rotation position is prevented.

In this state, the handle body 3 is opened,
That is, when rotated counterclockwise in FIG. 4, as shown in FIG. 5, the spring winding shaft 4, the coil portion 1c of the torsion spring 1, and the handle body 3
One of the legs 1a is also connected to the pivot 7 of the handle body 3.
The other leg 1b of the torsion spring 1
Moves while sliding on the cam portion 5. Since the cam portion 5 is located at a position that restricts the movement of the other leg 1b accompanying the movement of the torsion spring 1, the handle body 3
Is rotated by δα from the initial position, the bending angle of the torsion spring 1 is increased by δθ, and in the stroke end posture of the handle main body 3 shown in FIG. 6, the bending increases by θ2-θ1. In FIG. 5, the position of the handle main body 3 in the initial posture is indicated by a chain line C, and the other leg 1b without the cam portion 5 is indicated by a chain line.

In this embodiment in which the cam portion 5 is formed in a cylindrical shape, the increment of the deflection angle is determined by the position of the cam portion 5 and the diameter of the cam portion 5, and by appropriately changing these elements, the deflection is increased. The increment of the angle, that is, the increment of the operation force of the handle body 3 due to the operation angle can be adjusted. In addition, by changing the cross section of the cam portion 5 into an appropriate shape other than the circular shape, it is possible to adjust the state of change in the bending angle. Further, the cam portion 5 can be bulged integrally from the handle case 2, but as shown in FIG.
When the iron pin is fixed to the cam portion 5 by insert molding or a fastener, wear of the surface of the torsion spring 1 due to the leg 1b can be effectively prevented.

Therefore, in this embodiment, by adjusting the shape and position of the pin, that is, the cam portion 5, various operational feelings can be imparted without being restricted by the linear spring characteristics of the torsion spring 1. it can.

In the conventional example in which the torsion spring 1 is arranged concentrically with the pivot 7, in order to make the initial resistance torque and the torque at the stroke end position on the opening operation side close, the spring constant is reduced and the inclination is made gentle. However, in this embodiment, the spring constant can be increased, and the mounting space can be reduced. Further, by increasing the spring constant, the bending angle for obtaining the initial resistance torque can be reduced as compared with the conventional example, so that the mounting efficiency is improved. In addition, since the torsion spring 1 is wound around the counterweight 6 and functions as a counterweight component, the weight of the counterweight 6 alone can be reduced, and the manufacturing cost can be reduced.

[0021]

As is apparent from the above description, according to the present invention, the operational feeling can be improved without excessive operating force even in the position near the full stroke state.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a sectional view taken along line 3A-3A in FIG. 2 when the handle main body is located at an initial rotation position.

FIG. 4 is a sectional view taken along line 4A-4A in FIG. 2 when the handle main body is located at an initial rotation position.

FIG. 5 is a sectional view taken along line 4A-4A in FIG. 2 when the handle main body is located at an intermediate rotation position.

FIG. 6 is a sectional view taken along the line 4A-4A in FIG. 2 when the handle main body is located at the end of the stroke on the opening operation side.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Torsion spring 2 Handle case 3 Handle body 4 Spring winding shaft 5 Cam part 6 Counter weight

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-10-205181 (JP, A) JP-A-9-144394 (JP, A) JP-A 10-252317 (JP, A) 62273 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) E05B 1/00 301

Claims (5)

(57) [Claims] 1. A door outside handle device for an automobile, comprising a handle body urged by an torsion spring toward an initial rotation position and rotatably connected to a handle case, wherein the handle body includes a handle case. A spring-wound shaft is fixed at a position appropriately spaced from a pivotal position of the torsion spring, and the torsion spring is wound around the spring-wound shaft with one end connected to a handle body; A door outside handle device of an automobile having an end slidingly contacting a cam portion formed in a handle case. 2. An initial rotation position by a torsion spring.
Biased to the side and pivotally connected to the handle case
Car door outside hand with handle body
A handle device, wherein the handle body has a pivotal position with respect to the handle case.
The counterweight is fixed at a position spaced from the
And the torsion spring is wound around the counterweight.
Car door outside handle device to be. 3. A torsion according to rotation of the handle body.
3. The door outside handle device for an automobile according to claim 2, wherein a deflection angle of the spring is changed . 4. One of the legs of the torsion spring is
Contact position on handle case side when the handle body rotates
The door outside handle device for an automobile according to claim 2, wherein the sliding contact is performed while changing the position . 5. The sliding of one leg of the torsion spring.
Contact angle changes the torsion spring deflection angle
The vehicle outside handle device according to claim 4.