JPS6129057Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a control box suitable for operating various dampers, switches, resistance guides, etc. of an automobile air conditioner.

In a control box for an automobile air conditioner or the like, the control lever is most commonly configured such that one end is pivotally supported, the other end is inserted through a long hole in the indicator surface, and a knob is provided at the tip. In this case, when the control lever is operated left or right, the knob moves in an arc around the fulcrum. Therefore, in the center of the arc, the knob protrudes larger than the indicator surface, which is not only dangerous but also undesirable in terms of appearance.

In order to solve this problem, the engagement hole of the lever with respect to the fulcrum is made into a long hole, and the guide pin in the middle part of the lever is inserted into the arc-shaped guide groove formed in the control base and convex to the rear of the control box. has been proposed. When moving the lever left and right, the guide pin is regulated by the arc-shaped hole, so the tip knob of the lever moves along the indicator surface to compensate for the relative backward displacement between the long hole at the rear end of the lever and the fulcrum. Move approximately parallel. As a result, the amount of protrusion of the knob from the front of the indicator remains constant regardless of the position of the lever.
The above problems are resolved. However, at the rear end, the lever performs a relative displacement with respect to the fulcrum. At the center position of the lever, the amount of rearward protrusion becomes large.
Therefore, a new problem arises in that a considerable amount of space is required at the rear of the control box. In addition to this, there is also the problem that the number of parts is much more complex than in the original case.

In view of the drawbacks of the prior art, in the present invention, the amount of front and rear protrusion does not change with respect to left and right movement of the lever, neither at the front end nor at the rear end of the lever.
Another object of the present invention is to provide a new configuration that requires fewer parts.

The configuration of the present invention will be explained below with reference to the drawings.
In FIG. 1, reference numeral 10 denotes a control base on which a fulcrum pin 12 is fixed upright. Fulcrum pin 12
The rear end of the operating lever 14 is fitted onto the top and is attached with an E-ring (or chrysanthemum washer) 16 to prevent it from coming off. Both front ends 10A of the control base 10 are bent, and the indicator panel 18 is applied thereto and fixed to a vehicle side control (not shown) with screws 20. Operation lever 14
The left and right widths become narrower at the front end 14A. The knob 24 inserted into the elongated hole 19 of the indicator 18 has an axial hole 25, into which the tapered portion 14A of the operating lever 14 is fitted so as to be slidable in the longitudinal direction. . The knob 24 is made of a plastic molded product with elasticity, and includes a portion 24A that is slidably inserted into the elongated hole 19 of the indicator 18 from side to side, and an indicator panel 18.
The shoulder part 24C connecting these parts is the indicator panel 1 of the knob 24.
It is a stopper against 8. The indicator panel 18 is a plastic molded product, and a guide member 30 is integrally molded on the inside along the elongated hole 19. An elastic pawl 32 formed on the knob 24 comes into contact with the guide member 30, and the stopper shoulder of the knob 24 comes into contact with the guide member 30. 24C
An elastic force is generated that urges the elongated hole 19 to come into contact with the edge of the elongated hole 19. The guide member 30 has a raised shape at the center, while the elastic pawl 32 is formed in a substantially half-moon shape so that when the knob 24 is moved from side to side, the knob portion 24B moves substantially parallel to the indicator panel 18. I have to.

It is well known that the lever 14, which is only shown schematically, is connected to a damper for an air conditioner or the like through a pin 34, a link 36, etc., and its operation is controlled according to the left and right movement of the knob 24.

A word about assembling the knob 24 is that the elastic claw 3
2 is wider than the knob passage hole 19 of the indicator panel (see Figures 2 and 3), but since it widens toward the front of the panel 18, it contracts with its own elasticity, allowing it to pass through. . After insertion, the resilient pawls 32 expand to their original shape and assume the illustrated position in which they engage the guide member 30.

When using the control box of the present invention as described above, when the knob 24B is moved left and right, the lever 14 rotates around the pin 12 as shown by the dashed lines on the left and right, and the device such as a damper connected to the lever 14 is rotated. Drive. When the knob 24 moves from side to side, the knob 24 slides relative to the tip 14A of the lever 14 and moves along a predetermined trajectory depending on the shape of the engagement portion between the guide member 30 and the pawl 32. If the shape is as shown in the illustrated embodiment, the knob 24B of the knob 24 can be moved substantially in parallel so that the amount of protrusion from the indicator surface 18 does not change regardless of the left or right position of the knob 24. Instead of such parallel movement, by changing the shape of the guide portion 30 that is integrated with the indicator panel 18, a desired knob operation locus can be achieved.

As described above, according to the present invention, the knob 24 is made slidable on the lever 14, and the guide pawl 32 formed on the knob is brought into contact with the guide portion 30 of the indicator panel 18. Therefore, by appropriately selecting the shape of the guide parts, it is possible to obtain a predetermined knob operation locus despite the simple configuration with a small number of parts. Further, when the knob is moved from side to side, the lever does not protrude forward or backward, so the space of the control box can be minimized.

[Brief explanation of the drawing]

FIG. 1 is a top view of the control box of the present invention, FIG. 2 is a side view, and FIG. 3 is a partial sectional view showing a state in which a knob, an indicator panel, and an operating lever are fitted. 10... Control base, 14... Control lever, 18... Indicator panel, 1
9... Long hole, 24... Knob, 24C... Shoulder, 3
0... Guide portion, 32... Guide claw.

Claims (1)

[Scope of utility model registration request] A knob is inserted into the other end of the control lever, one end of which is pivotally connected to the control base, so as to be slidable in the longitudinal direction.The knob is inserted through a horizontal elongated hole on the indicator surface, and is guided along the elongated hole on the rear surface of the indicator. The knob has a shoulder portion that abuts the front surface of the indicator and a claw portion that abuts the guide portion;
The shape of the guide part and the claw part is selected so that the knob moves along a predetermined trajectory along the elongated hole.