JPS6242425Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a device for attaching a body for installing a switch mechanism to a vehicle, and its purpose is to improve workability during body attachment.

An embodiment of the present invention will be described below based on the drawings.

Reference numeral 1 denotes a cylindrical column as the main body, into which a steering shaft 2 is inserted. Reference numeral 3 designates a body for arranging a switch mechanism that is attached to the upper end of the column 1, which is integrally molded from plastic. A turn lever 4 and a wiper lever 5 are rotatably mounted on both sides of the body 3, and a turn switch mechanism operated by the lever 4 is provided on both sides of the lower surface of the body 3. A switch case 6 having a built-in wiper switch mechanism and a switch case 7 having a built-in wiper switch mechanism operated by a lever 5 are attached. Now, reference numeral 8 denotes a mounting portion for mounting the body 3 to the column 1, and this is integrally molded downward so as to form a substantially cylindrical shape at substantially the center of the lower surface of the body 3. The mounting portion 8 has a cylindrical peripheral wall divided into a plurality of arc-shaped pieces 8a by slits 9 extending in the axial direction, and is configured to be elastically expandable and deformable. 1
Reference numeral 0 denotes a protrusion protruding from the inner periphery of the lower end of a predetermined arcuate piece among the plurality of arcuate pieces 8a, and slopes 10a and 10b are formed on both upper and lower sides of this protrusion. A long hole 11, which is a recess, is formed at the upper end of the column 1 in correspondence with the protrusion 10. Reference numeral 12 denotes a tightening band wrapped around the outer periphery of the mounting portion 8, and tightening pieces 1 are bent at both ends of the band so as to face each other.
A bolt 13 is inserted between 2a and 12b, and the tip of the bolt 13 is screwed into a threaded portion 14 formed on one of the fastening pieces 12a. Reference numeral 15 denotes a locking piece which is a locking part that also serves as a removal assisting device and extends outward from the tip of an arc-shaped piece with a projection 10 protruding from among the plurality of arched pieces 8a. When the body 3 is pulled up, the arc-shaped piece of the attachment part 8 is elastically deformed in the expansion direction and the protrusion 10 is pulled out from the elongated hole 11 of the column 1, so that the body 3 can be easily removed from the column 1. Further, this locking piece 15 is for preventing the tightening band 12 wrapped around the outer periphery of the mounting portion 8 from slipping out.

In the above configuration, in order to attach the body 3 to the upper end of the column 1, first wrap the tightening band 12 around the attachment part 8 of the body 3, and then tighten the tightening pieces 12a, 12.
A bolt 13 is inserted between b and screwed into the threaded portion 14. At this time, the bolts 13 are loosely screwed together so that the arcuate piece 8a of the mounting portion 8 can freely expand and deform within the loosening range of the tightening band 12. In this state, the mounting portion 8 of the body 3 is fitted to the outside of the upper end of the column 1. Then, protrusion 1
The arc-shaped piece having a curve 0 elastically expands and deforms, so that the protrusion 10 rides on the outer circumferential surface of the column 1 and slides on the outer circumferential surface of the column 1. When the protrusion 10 encounters the long hole 11 of the column 1, the arc-shaped piece restores itself due to its own elastic force and the protrusion 10
0 is engaged with the elongated hole 11, thereby positioning the body 3. In the process of fitting the attachment part 8 to the column 1 as described above, the tightening band 12 is in a loosened state, but it is stopped by the locking piece 15 extending outward from the lower end of the attachment part 8. , it will not fall off from the mounting part 8. After fitting the mounting portion 8 of the body 3 into the upper end of the column 1 as described above, the bolt 13 is screwed.
Then, the tightening band 12 is tightened to strongly tighten the arc-shaped piece 8a constituting the mounting portion 8 to the column 1, thereby firmly fixing the body 3 to the upper end of the column 1.

In addition, in order to remove the body 3 from the column 1, it is sufficient to loosen the bolt 13 and pull the locking piece 15 upward. As a result, the arc-shaped piece of the attachment part 8 is elastically deformed in the expanding direction, and the protrusion 10 is extracted from the elongated hole 11 of the column 1, so the body 3 can be easily removed.

By the way, as another example of a body mounting structure, a semicircular mounting part is integrally molded on the body, one end of a semicircular fastener is rotatably connected to the semicircular mounting part, and the fastener and the mounting part are connected rotatably to the semicircular mounting part. There are some that are fixed to the column by tightening the parts with bolts and nuts. In this case, a protrusion corresponding to the protrusion 10 of the present embodiment is formed on the fastener, but in this case, the position of the body is performed by a fastener separate from the body. Therefore,
There is a problem of inferior positioning accuracy,
In addition, since the body must be positioned by fitting the protrusion of the fastener into the hole in the column while tightening the bolt and nut, there is a problem in that it is difficult to confirm that the protrusion and the hole fit together, and it takes time to install. Ta. On the other hand, in this embodiment, since the protrusion 10 is formed on the arcuate piece 8a that is integrated with the body 3, the body 3 can be accurately positioned with respect to the column 1. Since it is automatically fitted into the elongated hole 11 of the column 1, the workability is very good. Furthermore, before tightening the tightening band 12, a rotational force is applied to the body 3 on a trial basis, and by checking whether the body 3 rotates or not, it is possible to confirm that the protrusion 10 is aligned with the elongated hole 11. Since it can be determined whether or not they are fitted, it is possible to easily check the fitting between the protrusion 10 and the elongated hole 11, and then simply tighten the tightening band 12.
Since it is only necessary to tighten the body 3, the installation work of the body 3 can be completed in a short time.

In the above embodiment, the protrusion 10 was provided protruding from the mounting part 8 and the elongated hole 11, which is a recess, was formed in the column 1, but conversely, the protrusion was provided protruding from the outer peripheral surface of the column, and the recess was formed on the inner peripheral part of the mounting part. You may also do so.

As is clear from the above description, the present invention has a substantially cylindrical mounting part integrally molded on the body, and the mounting part is made elastic by forming a slit extending in the axial direction in the cylindrical peripheral wall. Since it is expandable and deformable, and protrusions and recesses are formed on one and the other of the attachment part and the attached part to position the body with respect to the attached part, the body can be positioned accurately and the protrusion is prevented. The part and the recess are automatically engaged by the elastic force of the attachment part, and the engagement can be easily confirmed, improving work efficiency.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a partially cutaway front view, Fig. 2 is a bottom view, Fig. 3 is a perspective view of the mounting part, and Fig. 4 is a vertical cross-sectional side view of the main part. 5 is a cross-sectional view of the main part along the line of FIG. 1. In the figure, 1 is a column (main body), 2 is a steering shaft, 3 is a body, 4 and 5 are levers (operating members), 6 and 7 are switch cases, 8 is a mounting part, and 9
is a slit, 10 is a protrusion, 11 is a long hole (recess),
12 is a tightening band, and 15 is a locking piece (locking portion).

Claims (1)

[Scope of utility model registration request] In a device in which a plastic body on which a switch mechanism operated by an operating member is disposed is attached to an attached part of the main body, the body is integrally molded into a substantially cylindrical shape so as to fit on the outside of the attached part. and a mounting portion formed on one and the other of the inner peripheral portion of the mounting portion and the outer peripheral portion of the attached portion. A switch comprising a protrusion and a recess that engage with each other by elastic force, and a tightening band that is wrapped around the outer circumference of the mounting part and tightens and fixes the mounting part to the mounted part. Body mounting device for mechanism installation.