JPH07257151A - Control lever incorporating knob - Google Patents

Abstract

PURPOSE:To facilitate the assembly of a knob to the front end of a control lever for controlling an air-conditioner such as a heater controller or the like in an automobile, and to enhance the rigidity. CONSTITUTION:In a control lever structure incorporating a knob, in which an engaging hole 5 is formed in a planar surface in the front end part of a control lever for controlling an equipment, a knob 2 is fitted in an insertion hole 8 formed in the front end part of the control lever 1 so as to attach the knob, and a protrusion 6 adapted to be engaged in the engaging hole of the control lever 1 is formed at the inner surface of the knob insertion hole, and then is engaged in the engaging hole 5 of the control lever 1 so as to attach the knob 2, a groove for guiding the protrusion 6 is formed in the planar surface of the front end part 3 of the control lever 1, in the longitudinal direction thereof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention makes it easy to assemble a knob attached to the tip of an operating lever for operating an air conditioner such as a heater control of an automobile and to improve rigidity. The structure of an operating lever with a knob.

[0002]

2. Description of the Related Art A driver's seat of an automobile is provided with an instrument panel as an instrument panel. A ventilator is provided at the center and both sides of the instrument panel, a warm air outlet is provided at the feet of front passengers, and a front desk. Defrosters are placed on the left and right along the windshield to ensure proper ventilation and heating.

Such a heater control device for air conditioning is arranged in the central portion of the instrument panel. As shown in FIG. 11, the heater control device includes a control lever 101 (described later) that is pulled out to a central opening of an instrument panel 100 in a driver's seat, and a heater control panel 102 arranged in front of the control lever 101. And a heater control panel garnish 103 provided on the outer periphery of the heater control panel 102. As shown in FIG. 12, the control lever 101 is generally composed of an outlet switching lever A, an inside / outside air switching lever B, a temperature control lever C, a fan switch D and the like.

The control levers 101 such as the outlet switching lever A, the inside / outside air switching lever B, and the temperature control lever C are arranged on the heater control panel 102 so as to be slidable in the left-right direction, and the control lever 101 has A knob 104 is attached to the tip for facilitating grasping during operation.

13 to 15 show a conventional knob-equipped operation lever structure such as an air-conditioning control lever 101 of this type. The tip end of the control lever 101 formed in a thin plate has a square engagement hole 1 on the plate surface.
05 is formed. On the other hand, an insertion hole 106 is formed in the end surface of the knob 104 that is fitted and mounted on the control lever 101. Inside the insertion hole 106, a semi-circular protrusion 10 that engages with the engagement hole 105.
7 are formed.

This knob 104 is connected to the control lever 10
In order to fit into No. 1, the insertion hole 106 of the knob 104 is fitted into the tip of the control lever 101. Then, the protrusion 107 in the insertion hole 106 is attached to the control lever 101.
It engages with the engaging hole 105 of and is fixed.

[0007]

However, according to the above-mentioned conventional technique, when the knob 104 is assembled, the control lever 101 does not escape, so that the control lever 101 is caught by the protrusion 107 and it is difficult to assemble. Therefore, in order to lower the lower surface side 108 of the protrusion 107, an escape hole 109 is formed in the lower portion of the insertion hole 106 of the knob 104, and the lower surface side 108 is lowered. However, when the knob 104 is assembled, the protrusion 107 abuts against the control lever 101, so that the assembly is difficult. Since the protrusion 107 of the knob 104 is mainly formed of a soft material,
The protrusion 107 is scraped off by the control lever 101, resulting in a defective product.

The present invention solves the above problems and facilitates the assembly of a knob attached to the tip of an operating lever for operating an air conditioning device such as a heater control of an automobile, and improves the rigidity. An object is to provide an operating lever structure with a knob that can be used.

[0009]

In order to solve the above-mentioned problems, the present invention forms an engaging hole in a plate surface of a tip portion of an operation lever for operating equipment, and fits an insertion hole in the tip portion of the operation lever. The knob is attached to the knob, and a protrusion that engages with the engagement hole of the operation lever is formed on the inner surface of the insertion hole of the knob, and the protrusion of the knob is engaged with the engagement hole of the operation lever. In the structure of the knob-equipped operation lever in which the knob is attached to the operation lever, a concave line for guiding the protrusion is formed along the longitudinal direction of the plate surface at the tip of the operation lever.

[0010]

Operation: The knob is fitted into the tip of the operating lever through the insertion hole. The protruding part of the knob enters along the concave line of the operating lever. Then, when the protrusion reaches the back of the recess, it goes around to the lower side of the operation lever and engages with the engagement hole. In this way, the knob is attached to the tip of the operation lever.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

1 to 3, reference numeral 1 denotes a control lever (operating lever) such as an outlet switching lever, an inside / outside air switching lever, and a temperature control lever provided on a heater control panel. Reference numeral 2 is a knob formed of a soft material and attached to the tip portion 3 of the control lever 1.

As shown in FIGS. 4 to 7, the control lever 1 is formed by press-molding a metal plate, and has a plate surface that engages with an engaging projection portion (described later) 4 of the knob 2. A hole 5 is formed, and a bead 6 is formed on the tip portion 3 along the longitudinal direction. On the back surface of the bead 6, a concave ridge 7 for guiding the engaging protrusion 4 of the knob 2 is formed.

As shown in FIGS. 8 and 9, the operation knob 2 has an insertion hole 8 formed on the end face thereof, which is fitted into the tip portion 3 of the control lever 1 and has a shape corresponding to the tip portion 3 of the control lever 1. Is formed, and the bottom surface 9 of the insertion hole 8 is formed.
Further, a semi-circular engagement protrusion 4 that engages with the engagement hole 5 of the control lever 1 is provided.

The insertion hole 8 has a wall surface (ceiling surface) opposite to the bottom surface 9 provided with the engaging projection 4 expanded upward corresponding to the bead 6 to form a tunnel portion 10. .

The insertion hole 8 is formed with a relief hole 11 on the lower side of the bottom surface 9 so that the bottom surface 9 is displaced to the lower side.

The end face 12 of the recess 7 of the control lever 1 and the opening end 5a of the engagement hole 5 are formed with a radius R so that the engagement protrusion 4 can be smoothly overcome. ing.

Next, the structure of the operating lever with a knob having the above-mentioned structure will be described. The knob 2 is fitted into the tip portion 3 of the control lever 1 through the insertion hole 8. The bead 6 of the control lever 1 is guided along the tunnel portion 10, and the engaging projection portion 4 enters along the concave line 7.

When the engaging projection 4 reaches the deep end of the recess 7, the bottom surface 9 is pushed down along the end face 12 of the recess 7 and wraps around the lower side of the control lever 1 to engage with the engaging hole 5. In this way, the knob 2 is attached to the tip portion 3 of the control lever 1.

The present invention is not limited to the above-described embodiment. For example, as shown in FIG. 10, in the case of a control lever 13 made of synthetic resin, a concave groove in the longitudinal direction is formed on the lower surface side of the tip portion 14. 15 can be formed and attached to the insertion hole 8 of the knob 2. In this case, the height of the insertion hole 8 is increased and the tunnel portion 10 is omitted.

[0021]

As described above, according to the knob-equipped operation lever structure of the present invention, the following effects can be obtained. In Claim 1, an engaging hole is formed in the tip end plate surface of the operation lever for operating the device, and the knob is attached by fitting the insertion hole into the tip end part of the operation lever, and the inner surface of the insertion hole of the knob. A protrusion with which the engagement hole of the operation lever is formed, and the protrusion of the knob is engaged with the engagement hole of the operation lever to attach the knob to the operation lever. In the lever structure, since the recessed line for guiding the protrusion is formed along the longitudinal direction of the plate surface of the tip end of the operation lever, the knob can be easily assembled and the rigidity can be improved. Further, since the protrusion is not scraped by the operating lever, there is no fear of producing a defective product. 3. A metal operating lever for operating a device according to claim 2, wherein an engaging hole is formed in a plate surface of a distal end portion of the operating lever, the insertion hole is fitted to the distal end portion of the operating lever to attach the knob, and the insertion hole of the knob. A knob for forming a protrusion that engages with the engagement hole of the operation lever, and attaches the knob to the operation lever by engaging the protrusion of the knob with the engagement hole of the operation lever. In the attached operation lever structure, a bead is formed by press-molding the operation lever along the longitudinal direction of the plate surface of the operation lever, and a concave strip for guiding the protrusion is formed on the back surface of the bead. Can be easily assembled and the rigidity can be improved. Further, since there is no risk of scraping the protrusion of the knob formed of a soft material at the tip of the operating lever, there is no risk of producing a defective product. Further, since the bead is provided on the operation lever, the top and bottom of the mounting will not be mistaken. Furthermore, the rigidity of the operating lever can be improved by providing the operating lever with a bead.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a heater control panel portion.

FIG. 2 is a perspective view showing an embodiment before assembly of the knob-equipped operation lever structure according to the present invention.

FIG. 3 is a cross-sectional view showing an example of an assembled state of the structure of the operating lever with a knob according to the present invention.

FIG. 4 is a side view showing a control lever.

FIG. 5 is a plan view showing a control lever.

FIG. 6 is a front view showing a control lever.

7 is a cross-sectional view taken along the line AA of FIG.

FIG. 8 is a front view showing a knob.

9 is a cross-sectional view taken along the line AA of FIG.

FIG. 10 is a perspective view showing a resin control lever.

FIG. 11 is an exploded perspective view showing a driver seat and a heater control panel portion of an automobile.

FIG. 12 is a front view showing a heater control panel portion.

FIG. 13 is a perspective view showing a conventional knob-equipped operation lever structure.

14 is a cross-sectional view taken along the line AA of FIG.

15 is a sectional view taken along line BB of FIG.

[Explanation of symbols]

 1 Control Lever 2 Knob 3 Tip 4 Protrusion 5 Engagement Hole 6 Bead 7 Recess 8 Insertion Hole 9 Bottom 10 Tunnel Part 11 Relief Hole 12 End

Claims (2)

[Claims] 1. An engaging hole is formed in a plate surface of a tip portion of an operation lever for operating equipment, and a knob is attached by fitting an insertion hole into the tip portion of the operation lever, and an inner surface of the insertion hole of the knob. A protrusion with which the engagement hole of the operation lever is formed, and the protrusion of the knob is engaged with the engagement hole of the operation lever to attach the knob to the operation lever. In the lever structure, an operating lever structure with a knob is characterized in that a recessed line for guiding the projection is formed along a longitudinal direction of a plate surface of a tip end of the operating lever. 2. A metal operating lever for operating a device is provided with an engaging hole in a plate surface of a front end portion thereof, the insertion hole is fitted into the front end portion of the operating lever to attach a knob, and the insertion hole of the knob is provided. A knob for forming a protrusion that engages with the engagement hole of the operation lever, and attaches the knob to the operation lever by engaging the protrusion of the knob with the engagement hole of the operation lever. In the attached operation lever structure, a bead is formed along the longitudinal direction of the plate surface of the tip of the operation lever by press forming the operation lever, and a concave line for guiding the projection is formed on the back surface of the bead. Operation lever structure with knob.