JPH0353301Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to an operating lever used in an automobile heater control device, etc.

(Prior Art) Conventionally, in this type of operating lever, a driving lever and a driven lever, which are rotatably attached to a base member, are connected by a connecting member, and one end of the driving lever is reciprocated to connect the driven lever. There is a device in which an object to be operated, such as a heater device, is remotely controlled via a wire connected to the tip of the device.

With this link type operation lever, when operating the drive lever in the direction of pushing the driven lever via the connecting member, the connecting member may buckle due to compressive force in the longitudinal direction. Like the lever, it is made of metal material, and is appropriately reinforced or made of a thick plate.

Further, the connection between the drive lever or the driven lever and the connecting member is achieved by inserting the connecting shaft together with a washer, a hat collar, etc. into a hole bored in both members, and caulking the ends thereof.

(Problems to be solved by the invention) However, in the conventional operating lever, the connecting member is made of a metal material, and is thick or reinforced, so it is heavy and difficult to handle, and the connecting member is heavy and difficult to handle. The number of parts was large, and jigs were required for caulking, making assembly difficult.

The present invention was devised in view of such problems, and an object of the present invention is to provide an operating lever that is lightweight and does not buckle.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides an operation lever in which a driving lever and a driven lever, which are rotatably attached to a base member, are connected by a connecting member. It is made of a resin material and has a backing part protruding from the base member that faces substantially the middle of the connecting member.

(Example) Next, an example of the present invention will be described with reference to the accompanying drawings.

FIG. 1 shows an automobile heater control device equipped with an operating lever 1 according to the present invention, where 2 is a base member, 3 is an operating panel, and 4 and 5 are other operating levers.

The operating lever 1 is composed of a driving lever 6, a driven lever 7, and a connecting member 8.

The drive lever 6 has an elongated hole 9 formed at one end, a support shaft 10 fitted into the elongated hole 9, and is attached to the base member 2 so as to be rotatable and slidable along the elongated hole 9. passes through a slit (not shown) provided in the operation panel 3 and protrudes outward, to which a knob 11 is attached. And this drive lever 6
A substantially keyhole-shaped first engagement hole 12 is formed in the middle. Also, this drive lever 6 has a guide pin 1.
3 is provided to protrude downward and is slidably fitted into an arcuate guide groove 14 formed in the base member 2, so that the knob 11 can move parallel to the surface of the operation panel 3. A pin insertion groove 15 is formed at one end of the arc-shaped guide groove 14 in a direction away from the operation panel 3. An elastic piece 17 having a claw portion 16 at its tip is fixed to the upper surface of the drive lever 6 by the guide pin 13 . The claw portion 16 is connected to the base portion 2a of the base member 2.
A plurality of grooves 1 are arranged in a row in the direction of rotation of the drive lever 6.
8 and are pressed into contact with each other to form a click mechanism.

The driven lever 7 is rotatably attached to the base member 2 about a support shaft 19 in the middle, and the tip of the inner 21 of the wire 20 is connected to one end. The outer 22 of the wire 20 is the base member 2
The other end is connected to a heater device (not shown). Moreover, at the other end of the driven lever 7,
A substantially keyhole-shaped second engagement hole 23 is formed.

The connecting member 8 is made of synthetic resin and is shown in FIGS.
As shown in FIG. 4, a first engagement shaft 24 and a second engagement shaft 25 are provided protrudingly on the upper surface of both ends, and
A pair of first engaging protrusions 26, 26 and a pair of second engaging protrusions 27, 27 are provided protrudingly provided on both sides of the distal ends of the first engaging shaft 24 and the second engaging shaft 25, respectively. These first engaging protrusions 26, 26 and second engaging protrusions 27, 27
are the first engagement holes 12 of the drive lever 6, respectively.
and into the second engagement hole 23 of the driven lever 7 at a predetermined position (hereinafter referred to as the engagement position) outside the operating range of the drive lever 6 or the driven lever 7, as shown by the two-dot chain line in FIG. Its protruding direction is determined so that it will fit in.

Further, on both end surfaces of the connecting member 8,
As shown in the figure, each set of three first elastic pieces 2
8, 28, 28 and second elastic pieces 29, 29, 29
is provided to protrude obliquely upward from the lower edge, and the plane formed by each elastic piece 28, 28, 28 or 29, 29, 29 is located above the upper surface of the connecting member 8.

Furthermore, between the first engagement shaft 24 and the second engagement shaft 25 of the connecting member 8, a first claw portion 30 is provided closer to the first engagement shaft 24, and a second claw portion is provided closer to the second engagement shaft 25. 31 are cut and raised diagonally in opposite directions on the upper surface side, and are formed to be elastically deformable in a direction perpendicular to the upper surface of the connecting member 8.

The first claw portion 30 and the second claw portion 31
As shown by the two-dot chain line in FIG.
2 and the second step part 33 from above, and is separated from the first step part 32 and the second step part 33 at a position where the drive lever 6 or the driven lever 7 is slightly rotated counterclockwise in the figure. If it returns elastically and attempts to rotate to the engagement position outside the operating range, the first
It comes into contact with the stepped portion 32 and the second stepped portion 33 to prevent further rotation.

On the other hand, the other operating levers 4 and 5 are as shown in FIGS.
As shown in the figure, a support shaft 35 is attached to the bottom of the operation panel 3.
(The spindle of the operating lever 5 is not shown.) It is rotatably mounted around the operating lever 5, and is reciprocated in parallel with the operating lever 1 to operate the wires 35 and 36, respectively. As shown in FIG. 5, the portion of the base member 2 on which the support shafts 34 of these operating levers 4 and 5 are screwed has a screw that protrudes toward the upper surface of the base member 2 and comes into contact with the connecting member 8. A backing portion 37 is formed.

First, a method for assembling the operating lever 1 having the above structure will be explained.

As shown in FIG. 2, the first engagement protrusions 26, 26 of the connecting member 8 are engaged with the first engagement hole 12 of the drive lever 6, and the drive lever 6 is pushed in. At this time, as shown in FIG.
is pressed by the drive lever 6 and elastically deforms, and the first claw portion 30 is pressed against the first step portion 32 of the drive lever 6, as shown in FIG. In this state, when the drive lever 6 is rotated counterclockwise in FIG.
is locked in the first engagement hole 12 of the drive lever 6, and the first
Due to the elasticity of the elastic pieces 28, 28, 28, the drive lever 6 is assembled to the connecting member 8 without play.
Further, the first step portion 32 of the drive lever 6 is connected to the connecting member 8.
The first claw part 30 is spaced apart from the first claw part 30 of
returns upward and faces the first step portion 32. Therefore, in this assembled state, even if the drive lever 6 is rotated clockwise, the first step portion 32 of the drive lever 6 will not be connected until it reaches the engagement position shown by the two-dot chain line in FIG. Since it comes into contact with the first claw portion 30 of the member 8, it will not come off.

Similarly, the driven lever 7 also has its second engagement hole 23
By engaging and pushing in the second engagement protrusions 27, 27 of the connecting member 8, and rotating counterclockwise, the elasticity of the second elastic pieces 29, 29, 29 allows the assembly to be performed without wobbling. 2 claws 3
1 and the second step portion 33, it can be assembled without coming off.

Therefore, the operation lever 1 does not require any assembly parts and is simply inserted into the first and second engagement holes 12 and 23 of the drive lever 6 and the driven lever 7 of the connecting member 8. It can be assembled by simply inserting and rotating the mating shafts 24 and 25, and the number of parts is small, and the assembly work can be performed extremely quickly and easily.

Next, a method for attaching the operating lever 1 assembled as described above to the base member 2 will be explained.

As shown in FIG. 5, from a state in which the drive lever 6 of the operation lever 1 (the driven lever 7 and the connecting member 8 are not shown) is positioned approximately parallel to the operation panel 3, the guide pin 13 is inserted into the pin insertion position. The groove 15 is inserted. At this time, since the pin insertion groove 15 is provided in the direction away from the operation panel 3,
When the guide pin 13 is fitted into the pin insertion groove 15, the drive lever 6 does not hit the base portion 2a of the base member 2 in which the groove 18 is formed.

Then, the operation lever 1 is rotated clockwise in the figure to fit the tip into the slit (not shown) of the operation panel 3, and the elastic piece 17 (not shown) is inserted into the slit (not shown) of the operation panel 3.
After the claw portion 16 (see FIG. 1) is engaged with the groove 18, the guide pin 13 is slid along the guide groove 14 to a predetermined position. Subsequently, the drive lever 6 and the driven lever 7 are mounted on the support shaft 10 and the support shaft 19, and the knob 11 is attached.

In the operation lever 1 assembled in this way, when the knob 11 is moved to the right and the drive lever 6 is rotated counterclockwise around the support shaft 10 from the state shown in FIG. is transmitted to the driven lever 7 via the first engagement shaft 24, the connecting member 8, and the second engagement shaft 25, and rotates the driven lever 7 counterclockwise, so that the inner 21 of the wire 20 is moved inside the outer 22. This enables control of a heater device (not shown).

When the rotational force of the operating lever 1 is transmitted to the driven lever 7, the connecting member 8 receives a compressive force from the driving lever 6 via the first engagement shaft 24, but as shown in FIG. Since the point receiving the compressive force is eccentrically upward in the figure from the neutral axis of the connecting member 8, it tends to buckle downward, as shown by the two-dot chain line in the figure. However, since the lower surface of the connecting member 8 is in contact with the backing portion 37, the deformation is restrained and buckling does not occur. Therefore, the connecting member 8 itself is
There is no need to increase the plate thickness or provide reinforcing ribs to prevent buckling, and a thin resin plate can be used.

In the above embodiment, the bases of the support shafts 34 of the other operating levers 4 and 5 were used as the backing portions 37 of the connecting member 8, but if these cannot be used due to the position, the backing portions 37 of the connecting member 8 may be used. A special backing portion 37 may be provided.

Furthermore, in the embodiment described above, the backing portion 37 was provided so as to be in contact with the connecting member 8, but it may be provided with a slight interval.

(Effects of the invention) As is clear from the above explanation, according to the invention, the backing part can prevent the connecting member from buckling, so the connecting member can be made thinner, and the operating lever is lightweight and easy to handle. This has the effect of making it easier and improving the assembly work.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a heater control device for an automobile equipped with an operating lever according to the present invention, Fig. 2 is a plan view showing how the driving lever and the driven lever are assembled to the connecting member, and Fig. 3 is the Fig. 2 of-
4 is a sectional view taken along the - line in FIG. 2, FIG. 5 is a plan view showing a state in which the operating lever is assembled to the base member, and FIG. 6 is a sectional view taken along the - line in FIG. 1. 1... Operation lever, 6... Drive lever, 7...
Driven lever, 8...Connection member, 37...Backing portion.

Claims (1)

[Scope of utility model registration request] In an operating lever in which a driving lever and a driven lever, which are rotatably attached to a base member, are connected by a connecting member, the connecting member is formed of a resin material, and
An operating lever characterized in that a backing portion that faces substantially the middle of a connecting member is provided in a protruding manner on a base member.