JPH0236189Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a pivoting structure for a rotating member that is an improved structure for supporting the shaft protruding from the rotating member. It is an object of the present invention to provide a pivoting structure for a rotating member which is temporarily held rotatably within a support recess of a machine frame by pressing a spherical portion with a convex portion protruding into the support recess.

An embodiment in which the present invention is applied to a column switch for a vehicle will be described below with reference to the drawings. Reference numeral 1 denotes a base plate serving as a machine frame fixed to a steering column (not shown), and a steering shaft (both not shown) having a steering wheel attached to its tip passes through the cylindrical part 2 of this board. . Reference numeral 3 denotes a cancel cam that is rotatably fitted around the outer periphery of the cylindrical portion 2, and has two cam ridges 3 on the outer periphery.
The protrusion 3b engages with the lower surface of the steering wheel to rotate together with the steering shaft, and is always biased toward the steering wheel by a coil spring 4. 5 is a bracket, which connects the cylindrical portion 5a to the substrate 1.
It is rotatably supported in a through hole 1a provided in a through hole 1a, and a holding recess 5b is provided at the end on the cancel cam 3 side and is open in the direction of the cancel cam 3 and is approximately parallel to the substrate 1. There is. Reference numerals 5c and 5c are shaft holes provided to sandwich the holding recess 5b, and 5d is a slit groove formed on both sides of each shaft hole 5c.
Reference numeral 6 denotes a ratchet whose shaft parts 6a, 6a are rotatably supported by shaft holes 5c, 5c and held in the holding recess 5b, and the ratchet is returned to both ends on the cancel cam 3 side so as to sandwich the cancel cam 3 therebetween. Claw portions 7 and 8 are provided in a protruding manner. 6b is an arcuate recess formed on the lower surface of the ratchet 6, and 5e is an arcuate recess provided in the bracket 5 to face the recess 6b. A compression coil spring 9 keeps the ratchet 6 in a neutral state with respect to the bracket 5 at all times. Reference numeral 10 denotes a rotation regulating body that is integrally molded on the base plate 1 so as to face the tip of the bracket 5, and has three cam recesses 10a.
10c are arranged in a row. A hole 5f formed at the tip of the bracket 5 has a ball 11 that engages with the recesses 10a to 10c, and a ball 11 that engages with the recesses 10a to 10c.
A coil spring 12 is inserted which urges the recess 1 in the direction of the recesses 10a to 10c. 5g is a connecting recess formed at the tip of the bracket 5. 13
is an elongated through hole bored in the substrate 1 so as to correspond to the tip of the bracket 5. 14 is the board 1
This is a support recess formed approximately in the center of the opposing long sides of the through hole 13, which has an arcuate bottom and an open top. Reference numeral 15 denotes a rotating member passing through the through hole 13; 16, 16 are shaft portions protruding from both sides of the rotating member 15 as a first rotational axis; is formed and rotatably supported within the support recess 14. 1
A pair of protrusions 8 are integrally molded with the substrate 1 and protrude into the support recess 14, which partially covers the upper edge of the open surface of the support recess 14, and extends the lower surface 18a of the shaft 16. It is formed into an arc shape that approximately matches the spherical portion 17. Reference numeral 19 denotes a punched hole formed in the bottom wall portion 14a of the support recess 14 opposite to the convex portion. Further, the rotating member 15 is provided with a lever portion 20 that is oriented toward the back surface of the substrate 1 . 21 is this rotating member 15
The intermediate portion of the operating lever 23 is rotatably supported by a convex portion protruding from the front side of the lever via a pin 22 serving as a second rotation axis. The pin 22 is set to be substantially parallel to the front surface of the substrate 1 and the long side of the through hole 13, and to be oriented in a direction substantially perpendicular to the orientation direction of the shaft portions 16, 16. Further, the operating lever 23 includes a flat knob portion 24 protruding toward the front side of the board 1 and a lever portion 25 oriented toward the back side of the board 1, and the tip of the lever portion 20 is inserted into the connecting recess 5g. Insert concatenation. 2
Reference numeral 6 denotes a light guide as a backing plate that comes into contact with the front surface of the board 1. This is fixed by a cover 27 attached to the front board of the board 1 by screws, etc. in contact with the shaft portion 16
is prevented from coming off from the support recess 14. An operating lever 2 is located in the center of this cover 27.
A slit hole 27a is provided that allows the knob portion 24 of No. 3 to protrude toward the front side. Incidentally, reference numeral 28 denotes a dimmer passing switch fixed to the back side of the base plate 1 by screws, and the lever portion 20 of the rotating member 15 is brought into contact with the operator 28a of this switch. and,
This daymap passing switch 28 is the operator 28.
It incorporates a passing switch part that closes when the operator 28a is pushed in, and a dimming switch part that alternately energizes high beams and low beams each time the operator 28a is pushed in. Reference numeral 29 denotes a turn signal switch that is installed on the back side of the board 1 via a holder 30, in which the operator 29a is engaged with a protrusion 5h protruding from the tip of the bracket 5, and is controlled by the rotation of the bracket 5. It is designed to slide accordingly. According to the above embodiment having such a configuration, the cover 27 and the light guide 26 are connected to the substrate 1.
The rotating member 15 is inserted into the through hole 13 of the substrate 1 without being attached to the base plate 1, and the shaft portion 16 is placed on the upper part of the convex portion 18 so as to face the support recess 14 as shown by the two-dot chain line in FIG. If this shaft portion 16 is strongly pushed downward, the spherical portions 17, 17 at each end of the shaft portion 16 will slide along the spherical surfaces, expand the convex portions 18 on both sides to the left and right, and be housed in the support recess 14. Ru. Shaft 1
6 and 16 are housed in the support recess 14, the protrusion 1
8 is restored to its original position by its elasticity, and its lower surface portion 18a comes to engage with the spherical surface portion 17 at the tip of the shaft portion 16 from above, and the shaft portion 16 is no longer pulled outward from the support recess 14. It is irremovably retained. Since the shaft portion 16 of the rotating member 15 is held in the holding recess 14 in this way, the operation of the operating lever 23 can be checked without the light guide 26 attached.
In addition, the opening/closing inspection of the dimmer passing switch 28 and turn signal switch 29, which operate in conjunction with the operation of the operating lever 23, can be carried out.
The work can be done while visually checking the turn signal switch 29 and the turn signal switch 29, making assembly easier.

As is clear from the above description, the present invention has a spherical surface formed on both ends of the shaft of the rotating member, and a punched hole that corresponds to the spherical surface and passes through the bottom of the support recess. A convex portion is integrally formed with the machine frame and protrudes into the support recess on the open side of the support recess, and when the shaft portion is inserted into the support recess, the convex portion engages with the spherical surface portion. Since the shaft portion is held within the support recess, various inspections related to the operating lever can be completed during assembly, thereby improving assembly efficiency.

[Brief explanation of the drawing]

The drawings show an embodiment in which the present invention is applied to a column switch for a vehicle. FIG. 1 is an overall plan view, FIG.
FIG. 3 is an enlarged vertical cross-sectional view taken along the line. In the figure, 1 is the board (machine frame), 14 is the support recess, 1
5 is a rotating member, 16 is a shaft portion, 17 is a spherical surface portion, 26
indicates a light guide (backing plate).

Claims (1)

[Scope of utility model registration request] Insert both ends of the shaft protruding from the rotating member into a support recess formed in one side of the machine frame and having an arc shape with a bottom corresponding to the shaft, and The shaft portion is rotatably supported within the support recess by closing the open surface of the support recess with a backing plate that comes into contact with the support recess, wherein two spherical portions are formed on both end edges of the shaft portion. 2, which correspond to these spherical parts and are integrally formed with the machine frame so as to face the punched holes passing through the bottom of the support recess, and protrude into the support recess on the open surface side of the support recess. when the shaft is inserted into the support recess, each of the two projections engages with a corresponding spherical surface to hold the shaft in the support recess in a state where it does not come off. A pivoting structure for a rotating member, characterized in that: