JPH0353302Y2 - - 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, this type of operating lever has been provided with an elongated hole into which a support shaft is inserted so that it can rotate and slide in the longitudinal direction in the base member, and an arc-shaped hole provided in the base member. A guide pin that slidably engages with the guide groove is protrudingly provided, and a tip protruding from a slit provided in the operation panel is provided so as to be linearly operable parallel to the operation panel, and the operation end is reciprocated. Therefore, there are devices in which an object to be operated, such as a heater device, is remotely controlled via a wire connected to the other end.

To assemble this operating lever to the base member,
After the operating end is inserted diagonally from above into the slit of the operating panel, the guide pin is inserted into the guide groove from above. For this reason, if the guide groove is located near the operation panel, the guide pin cannot be fitted into the guide groove, so the guide groove is provided at a position a certain distance from the operation panel.

(Problem that the invention attempts to solve) However, if the guide groove is separated from the operation panel, the distance from the operating end of the operating lever to the position of the guide pin becomes long. The arcuate shape of the guide groove has a large curvature, which increases the sliding resistance between the guide pin and the guide groove, resulting in poor operability.

Therefore, a guide groove is provided in the form of a wall that stands up from the base member to bring it closer to the operation panel, and a notch is provided in the wall of the guide groove so that the operation end of the operation lever can be inserted into the slit of the operation panel from the horizontal direction. It is also conceivable that while the guide pin is inserted, the guide pin also fits into the guide groove from the notch in the horizontal direction.

However, when a notch is provided in the guide groove, the strength of the base member is reduced, and the operating lever tends to come off from the notch.

The present invention was developed in view of such problems, and the purpose of the present invention is to provide an operating lever in which the guide groove in which the guide pin of the operating lever engages can be provided as close to the operating panel as possible and with less sliding resistance. shall be.

(Means for Solving the Problems) In order to solve the above problems, the present invention provides a base member that is rotatable and slidable in the longitudinal direction, and an arc-shaped guide groove provided in the base member. In an operating lever, the operating lever is provided with a protruding guide pin that slidably engages with the operating panel so that the tip protruding from the operating panel can be operated in a straight line parallel to the operating panel. A pin insertion groove extends in the direction away from the pin.

(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, and is attached to the base member 2 by fitting a support shaft 10 into the elongated hole 9 so as to be rotatable and slidable along the elongated hole 9, and at the other end. 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 engagement protrusions 26, 26 and second engagement 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. portions 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 member 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. 3, the first elastic pieces 28, 28, 2
8 is pressed by the drive lever 6 and elastically deforms, and the first claw part 30 is pressed by the first step part 32 of the drive lever 6, as shown in FIG. and,
In this state, when the drive lever 6 is rotated counterclockwise in FIG.
6 is locked in the first engagement hole 12 of the drive lever 6, and the drive lever 6 is assembled to the connecting member 8 without wobbling due to the elasticity of the first elastic pieces 28, 28, 28. Further, since the first step portion 32 of the drive lever 6 is separated from the first claw portion 30 of the connecting member 8, the first claw portion 30 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 this way, since the pin insertion groove 15 is used for assembling the operating lever 1 to the base member 2, the position of the guide groove 14 is not restricted for assembling, and the guide groove 14 is not limited. It can be brought close to the operation panel 3, or in this embodiment, the base portion 2a. As a result, the guide pin 13 is positioned closer to the operating end, that is, closer to the knob 11, so the shape of the guide groove 14 can be an arc close to a straight line, reducing sliding resistance and improving operability. .

Operation lever 1 assembled as described above
1, when the knob 11 is moved to the right and the drive lever 6 is rotated counterclockwise about the support shaft 10, the rotation force is applied to the first engagement shaft 24 and the connecting member. 8. Further, the signal is transmitted to the driven lever 7 via the second engagement shaft 25, and the driven lever 7 is rotated counterclockwise to rotate the inner 21 of the wire 20.
is pushed into the outer 22, making it possible to control 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 embodiment described above, the pin insertion groove 15 was provided extending to one end of the guide groove 14, but it may be provided in the center. However, it is safer to provide the guide pin at one end and outside the operating range as in this embodiment, since the guide pin will not enter the pin insertion groove 15 during operation and become inoperable.

Further, in the above embodiment, the link type operation lever is made up of the driving lever 6, the driven lever 7, and the connecting member 8, but it goes without saying that the present invention can also be applied to one made of a single lever.

(Effect of the invention) As is clear from the above explanation, according to the invention, since the pin insertion groove is continuous with the guide groove and extends in the direction away from the operation panel, the pin insertion groove of the guide pin is The operating panel and the base member do not interfere with each other when inserted into the groove, and the operating lever can be easily assembled to the base member.

Therefore, the guide groove can be provided closer to the operation panel without considering the ease of assembling the operation lever, and it can be formed with an arc close to a straight line with a small curvature, so the sliding resistance with the guide pin is reduced. Small size, smooth operation, and improved operability.

In addition, after the guide pin is inserted into the guide groove using the pin insertion groove, as long as the guide pin remains in the guide groove, it will not come off from the base member.
This has the effect of making assembly work easier.

[Brief explanation of drawings]

Fig. 1 is a plan view of an automobile heater control device equipped with an operating lever according to the present invention, Fig. 2 is a plan view showing how the drive lever and 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... Operating lever, 2... Base member, 3...
Operation panel, 13... Guide pin, 14... Guide groove, 15... Pin insertion groove.

Claims (1)

[Scope of utility model registration request] A guide pin is provided on the base member so as to be rotatable and slidable in the longitudinal direction, and a guide pin that slidably engages with an arc-shaped guide groove provided on the base member is provided, and the tip protrudes from the operation panel. What is claimed is: 1. An operating lever which is provided so as to be linearly operable parallel to an operating panel, characterized in that a pin insertion groove is continuously provided in the guide groove and extends in a direction away from the operating panel.