JPH056518U - Valve socket fitting structure for vehicle lighting - Google Patents

Abstract

(57) [Abstract] [Purpose] In a valve socket fitting structure for a vehicle lamp, in which a valve socket having bayonet pins provided at three locations is fitted in the fitting hole provided in a conventional lamp, Since there is no choice but to provide a play (clearance) in consideration of a manufacturing error with the bulb socket, this play causes a problem in that the light distribution characteristic is impaired due to an error in the mounting position of the light bulb. [Structure] In the fitting hole 10, an eccentric spring 12 that presses a pin tip portion 22a toward the center of the fitting hole 10 corresponding to each of the bayonet pins 22 of the valve socket 20 is attached to the bayonet pin 22 mounting position. With the valve socket fitting structure provided along the rotation direction of the valve socket 20, the biasing spring 12 causes the valve socket 20 to fit into the fitting hole 10.
The problem is solved by being located in the center of.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention relates to a vehicular lamp, and more particularly to a bulb socket for this lamp. It relates to a fitting structure for mounting.

[0002]

[Prior art]

  The fitting structure of the bulb socket 20 in the conventional vehicle lamp 90 of this type is the most suitable. Figure 5 shows an example of a universally used wedge base socket. Socket for inserting the wedge base bulb (not shown) of the bulb socket 20. Bayonet pins 22 are supposed to be provided at three locations on the outer wall of the toe portion 21. On the side of the vehicular lamp 90, an escape hole 91 for passing the bayonet pin 22 is provided. A fitting hole 91 having a is provided to attach the bulb socket 20 to the vehicle lamp 90. When mounting, the bayonet pin 22 is aligned with the escape hole 91a. Insert the valve socket 20 into the fitting hole 91 with and then rotate it clockwise. It is supposed to be done in and.

[0003]

[Problems to be solved by the device]

  However, the valve socket 20 has a tolerance within the standard. In addition, the vehicular lamp 90 is also provided on the side of the fitting hole 91. A tolerance is required depending on the molding conditions and the like, which causes the valve socket 20 There is considerable play (clearance) between the fitting hole 91 and the fitting hole 91. The wedge base light bulb attached to 20 is attached to the focus position of the vehicular lamp 90. If you try to do so, it will be difficult to install it in the correct position due to the rattling described above. This causes a problem that the light distribution characteristics are impaired, and the solution to this problem is a problem. It was supposed to be done.

[0004]

[Means for Solving the Problems]

  The present invention is installed in a lamp as a concrete means for solving the above-mentioned conventional problems. A valve socket with bayonet pins provided at multiple points in the fitted fitting hole In a bulb socket fitting structure for a vehicle lamp having a ball attached, said fitting The bayonet pin tips correspond to the respective bayonet pins in the holes, and The biasing spring that pushes in the center direction rotates the bayonet pin to the mounting position. Bulb socket fitting structure for vehicle lighting characterized in that it is provided along the direction By solving the above problems, the conventional problems described above are solved.

[0005]

【Example】

  Next, the present invention will be described in detail based on an embodiment shown in the drawings.   For ease of understanding, the same wedge base socket as the conventional example is used. The same parts are given the same reference numerals for explanation, and the overlapping parts are partially explained. Omit it.   Reference numeral 1 in FIG. 1 and FIG. 2 is a vehicle lighting device. Is an escape hole for fitting the valve socket 20 provided with the bayonet pin 22. It is similar to the conventional example in that the fitting hole 10 having 11 is provided. However, according to the present invention, the biasing spring 12 is provided in the fitting hole 10. Is generated in the valve socket 20 and the fitting hole 10 by this bias spring 12. It is supposed to eliminate backlash.

[0006]   Here, the bias spring 12 will be described in more detail. The spring 12 is on the back side of the fitting hole 10, that is, the bayonet pin after being inserted. Are provided in correspondence to the bays 22 from the positions of the respective escape holes 11. The spring tip 12a along the rotation direction for attaching the net pin 22 forms a free end. Is formed in a substantially arcuate shape, and faces the spring tip portion 12a on the free end side thereof. It is said that the radius is reduced to a certain degree, for attaching the bayonet pin 22. When it is rotated to the end, the pin tip 22a of this bayonet pin 22 is The pressure is gradually increased toward the center of the hole 10.

[0007]   Further, in carrying out the present invention, as shown in FIG. A click groove 22b is provided on the pin tip portion 22a of at least one of And the spring tip portion 12a of the biasing spring 12 corresponding to the bayonet pin 22. In the click groove when the valve socket 20 is rotated to the mounting position. By installing the click protrusion 12b at a position corresponding to 22b, mounting work can be performed. When the rotation of the valve socket 20 reaches a fixed position, the click groove 22b and click protrusion 12b are fitted to each other to notify the fixed position.

[0008]   When forming the biasing spring 12, for example, a steel plate or the like is used. Although it may be configured to be molded and attached to the body, a mold K for forming the vehicular lamp 1, As shown in FIG. 4, L is formed integrally with the vehicular lamp 1 by resin molding or the like. It is preferable that the parts point for carrying out the present invention is It is possible to substantially increase the number and man-hours.

[0009]   Next, the operation and effect of the present invention configured as described above will be explained. Mounting the valve socket 20 in the fitting hole 10 by providing the eccentric spring 12 At times, in the process of giving rotation for mounting to the valve socket 20, the bayonet The biasing force toward the center of the fitting hole 10 gradually increases at the pin tip portion 22a of the contact pin 22. It will be added as soon as possible.

[0010]   At this time, the bayonet pin 22 divides the outer circumference of the valve socket 20 into approximately three equal parts. Since it is provided at the above position, the bias spring 12 biases the bias. The force balances the valve socket 20 by positioning it in the center of the fitting hole 10. Amount of play (clearance) existing between the fitting hole 10 and the valve socket 20. Regardless of the above, the valve socket 20 shall be retained at the center of the fitting hole 10. It

[0011]   Further, the click protrusion 12b is attached to the bias spring 12 and the bayonet pin 22. By providing the click structure with the click groove 22b and When the rotation of the valve socket 20 reaches a predetermined angle by the operator, At the same time, the click protrusion 12b and the click groove 22b The fitting ensures the fixation at the specified mounting position.

[0012]

[Effect of device]

  As described above, the present invention accommodates each bayonet pin in the fitting hole. And an eccentric spring that presses the tip of the bayonet pin toward the center of the fitting hole. Of the vehicular lamp installed along the direction of rotation to the mounting position of this bayonet pin The valve socket fitting structure allows the valve socket to be locked by the bias spring. Press the bayonet pins provided at three locations on the outer periphery of the socket toward the center of the fitting hole. Position the valve socket in the center of the fitting hole regardless of the amount of backlash. As a result, this type of vehicular lamp is provided without impairing the light distribution characteristics. It has an excellent effect on performance improvement.

[0013]   In addition, at least one set of the bayonet pin and the bias spring has a mounting position. By providing a click structure corresponding to the mounting position, the amount of rotation during mounting work can be clarified The workability is improved and the valve socket can be fixed securely. It is also possible to improve the reliability by preventing it from falling off.

[Brief description of drawings]

1 is a perspective view showing an embodiment of a bulb socket fitting structure for a vehicular lamp according to the present invention.

FIG. 2 is a plan view from the direction of arrow A in FIG.

FIG. 3 is a perspective view showing the main part of another embodiment of the present invention.

FIG. 4 is a cross-sectional view schematically showing the formation state of the bias spring of the present invention.

FIG. 5 is a perspective view showing a conventional example.

[Explanation of symbols]

1 ... Vehicle lamp 10: Fitting hole 11 ... Escape hole 12 ... biased spring 12a ... Spring tip, 12b ... click protrusion 20 ... Valve socket 21 ... Socket 22 ... Bayonet pin 22a ... pin end, 22b ... click groove

Claims (2)

[Scope of utility model registration request] 1. A valve socket fitting structure for a vehicular lamp, wherein a light bulb is attached to a fitting hole provided in a lamp with a bulb socket provided with bayonet pins at a plurality of locations. A vehicle for which an eccentric spring that presses the tip of the bayonet pin toward the center of the fitting hole corresponding to each of the bayonet pins is provided along the rotation direction to the mounting position of the bayonet pin. Fitting structure for bulbs of lamps. 2. The valve socket fitting structure for a vehicular lamp according to claim 1, wherein at least one set of the bayonet pin and the bias spring is provided with a click structure corresponding to a mounting position.