JP2002100263A - Over-drive switch for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the work efficiency in assembling and facilitate maintenance and management of a switch as a result of less number of parts by permitting a resetting means of a button acts as a click means as well. SOLUTION: A vehicle over-drive switch is provided where, with a press button inserted reciprocatingly in a casing, an over-drive state of a vehicle is alternately turned off/on, via a control circuit, when the press button is depressed to turn on the switch. A click-type rubber bowl spring is inserted between the casing and the press button.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an overdrive switch for a vehicle, and more particularly to a so-called momentary overdrive switch.

[0002]

2. Description of the Related Art In a conventional overdrive switch of this type, a push button is fitted in a casing so as to be able to move forward and backward, and a return means (compression coil spring) is interposed between the casing and the push button. The push button is urged in the return direction, and a separate click means (comprised of a ball, a spring, and a cam) is provided between the push button and the casing. Switch ON while
By doing so, the driver was surely felt that the operation was performed.

[0003]

However, in such a conventional overdrive switch, since the click means is provided separately from the return means of the push button, the number of parts is increased, and as a result, the number of parts is increased. It has the inconvenience that it is troublesome and that it is difficult to maintain and manage the product. Further, since the clicking means is in mechanical contact, the inconvenience is that it is worn during use and the clicking feeling is apt to change.

An object of the present invention is to eliminate these disadvantages.

[0005]

In a vehicle overdrive switch according to the present invention, a push button is fitted in a casing so as to be able to advance and retreat, and the switch is turned on by pressing the push button to control the vehicle via a control circuit. In the vehicle overdrive switch for turning the overdrive state off and on alternately, a click-type rubber bowl spring is interposed between the casing and the push button, so that the push button is pressed against the click-type rubber bowl spring. Thus, the switch can be turned on while obtaining a click feeling, and the push button can be returned to the original state by the elasticity of the click type rubber bowl spring.

If the switch is set to be turned on between the click position of the click bowl rubber spring and the time of maximum compression, the switch does not operate unless the driver pushes the switch to the click position during operation. It can be clearly understood that the switch is turned on when the click position is exceeded.

[0007]

1 is a sectional view of a vehicle overdrive switch according to the present invention taken along line II in FIG. 2, FIG. 2 is a sectional view taken along line II-II in FIG. 1, and FIG. FIGS. 4A and 4B are schematic diagrams of operation waveforms when the click-type rubber bowl spring of the present invention is pressed.

In FIG. 3, reference numeral 10 denotes a shift lever of an automobile, and reference numeral 11 denotes a grip thereof. S is an overdrive switch, which is installed on the side of the grip 11. The overdrive switch S is a momentary type, and when pressed, is turned on, and the control circuit C alternately turns the overdrive state of the vehicle off and on. When the engine is stopped, the control circuit C
Control is performed so that restart can be performed when the overdrive state is ON.

Next, the overdrive switch S will be described in detail with reference to FIGS.

In FIG. 1, reference numeral 20 denotes a casing, which comprises a bottomed case 30 and a cover body 50 fitted into an opening 301 of the bottomed case 30.

Reference numeral 51 denotes a cylindrical fitting portion, which protrudes from the cover body 50. This cylindrical fitting portion 51 is
It is a part to be fitted inside. Reference numeral 52 denotes a spring seat, which is formed at the bottom of the tubular fitting portion 51. The spring seat 52 has a circular hole shape.

Reference numeral 60 denotes a click-type rubber bowl spring, which is installed on the spring seat 52. This click rubber bowl spring 60
Has a bottom 61 made of rubber material, a tapered portion 62 connected to the bottom 61, and an annular support 63 connected to the periphery of the tapered portion 62. The annular support 63 is inserted into the spring seat 52 of the cover body 60 so that the bottom 61 is projected. 64
Is a recess formed in the bottom 61. The function of the recess 64 will be described later. The operation waveform of the rubber bowl spring 60 is
As shown in FIG. 4, a peak load P exists in the range of the stroke. For this reason, once the peak load P is exceeded, the momentum reaches the full stroke with the momentum.

Reference numeral 53 denotes a through hole, which is formed at an end of the spring seat 52 in the cover body 50. Reference numerals 54, 54 denote a pair of plate fitting insertion grooves, which extend from the inner wall surface of the through hole 53 substantially in parallel along the inner wall surface of the cylindrical fitting portion 51. Five
5 and 55 are fixed electrode plates, and
4,54 respectively. This fixed electrode plate 55,
The surface of 55 is exposed on the inner wall surface of the cylindrical fitting portion 51 in a substantially flush state. The roots of the fixed electrode plates 55, 55 are bent in an L-shape, and the ends protrude from the cover body 50, and harnesses 56, 56 are connected by caulking, respectively. Reference numeral 57 denotes a through hole provided at the bottom of the tapered portion 62, and air flows in and out when the rubber bowl spring 60 is compressed and expanded.

Next, reference numeral 31 denotes a through hole, and the bottomed case 31
Formed at the bottom of 30. The axis of the through hole 31 substantially coincides with the axis of the bottomed case 30. Also, 32,32,3
Reference numerals 2,... Are guide grooves projecting from the inner peripheral surface of the side wall of the bottomed case 30. The guide groove 32 extends along the axis of the bottomed case 30.

Next, 70 is a cylindrical advance / retreat member, and 71, 71,.
Is a guide ridge protruding from the outer peripheral surface of the cylindrical advance / retreat member 70. With the guide ridge 71 fitted in the guide groove 32 of the bottomed case 30, the cylindrical advance / retreat member 70 is fitted inside the bottomed case 30 so as to be able to advance / retreat.

Numeral 72 denotes a button portion, which is a cylindrical member 70
Is connected to the rear end in a reduced diameter state. The button portion 72 has a cylindrical shape and protrudes from the through hole 31 of the bottomed case 30.

Numeral 73 denotes a plate seat, which is the cylindrical advance / retreat member.
70 is formed in a planar shape on the outer peripheral surface. This plate seat
Reference numeral 73 extends to the distal end (the right side in FIG. 1) of the cylindrical advance / retreat member 70. Numeral 74 denotes a holding slit, which is formed on the rear edge of the plate seat 33 (left side in FIG. 1).
The holding slit 74 extends in the horizontal direction.

Reference numeral 75 denotes a center shaft, which is provided on the rear surface of the button 72 so as to protrude therefrom. The center shaft 75 extends along the axis of the cylindrical advance / retreat member 70. The center shaft 75 slightly protrudes from the cylindrical advance / retreat member 70. Reference numeral 77 denotes a locking projection, which protrudes from the front end surface of the central shaft 75. The function of the locking projection 77 will be described later.

Reference numeral 80 denotes a movable electrode plate which is held by the holding slit 74. This movable electrode plate 80
Is composed of a base piece 81 sandwiched, a support piece 82 extending from the base piece 81, and contact pieces 83, 83 on both sides thereof. The tip of the support piece 82 is bent into a substantially L-shape, and a through hole 84 is formed in the vertical piece.
After the locking projection 77 of the center shaft 75 passes through this through hole 84,
The click-type rubber bowl spring 60 is fitted in a recess 64 (of the bottom 61).

Convex curved portions 85, 85 are continuously provided at the tip portions of the contact pieces 83, 83. The convex curved portions 85, 85 are provided on the inner wall surface of the cylindrical fitting portion 51. Being energized. The convex curved portions 85, 85 of the contact piece portions 83, 83 advance when the button portion 72 is pressed against the elasticity of the click type rubber bowl spring 60, and respectively move forward of the fixed electrode plates 55, 55. It comes into contact with the surface, energizes both, and turns on a so-called switch. When the button 72 is released from being pressed, the contact piece
83,83 convex curved portions 85,85 are click-type rubber bowl springs
The fixed electrode plate returns to its original state by the elasticity of 60
Since they are separated from the surface of 55 and 55, the power supply to both is stopped,
The so-called switch is turned off.

When the button 72 is pressed against the click-type rubber bowl spring 60, a peak load position P (see FIG. 4) in the range of the stroke or after the position P is reached. Since the ON state of the switch starts and the ON state is maintained between the time of maximum compression and the ON state, a click feeling can be obtained when the switch is started to be ON. Therefore, the driver can clearly understand that the switch is not yet operated unless the switch is pushed to the click position during the operation, and that the switch is turned on if the driver exceeds the click position.

The switch S is turned ON / O.
The contact portion of the switch to be flipped is an example, and there is no doubt that all other existing methods can be used.

[0023]

According to the vehicle overdrive switch according to the present invention, a push button is fitted in a casing so as to be able to advance and retreat, and the switch is turned on by pushing the push button, thereby alternately switching the overdrive state of the vehicle through a control circuit. In the vehicle overdrive switch that is turned off and on, a click-type rubber bowl spring is interposed between the casing and the push button. The switch can be turned ON while obtaining, and the push button can be returned to the original state by the elasticity of the click rubber plate spring.

Therefore, when this vehicle overdrive switch is used, the return means of the push button also serves as the click means, so that the number of parts is reduced as compared with the conventional one, and the efficiency of the assembling work can be improved. It is easy to maintain and maintain the product.

If the switch is set to be ON between the click position of the click type rubber bowl spring and the time of maximum compression, the switch does not operate yet unless the driver pushes the switch to the click position during operation. It can be clearly understood that the switch is turned on when the click position is exceeded.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of the vehicle overdrive switch according to the present invention taken along line II in FIG. 2;

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a diagram showing a use state of the vehicle overdrive switch.

FIG. 4 is a schematic diagram of operation waveforms when the click rubber bowl spring of the present invention is pressed. 20… Casing 60… Click-type rubber bowl spring 72… Push button (push button) C… Control circuit S… Overdrive switch for vehicle

Claims (2)

[Claims] An overdrive switch for a vehicle in which a push button is fitted in a casing so as to be able to advance and retreat, and the push button is pressed to turn on the switch, whereby the overdrive state of the vehicle is alternately turned off and on via a control circuit. An overdrive switch for a vehicle, wherein a click-type rubber bowl spring is interposed between the casing and the push button. 2. The vehicle overdrive switch according to claim 1, wherein the switch is turned on between a click position of the click rubber bowl spring and a time of maximum compression.