JPH0454060Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a device for fixing a tilt handle of a vehicle.

[Prior Art] For example, in a tilt handle fixing device disclosed in Japanese Utility Model Application Publication No. 58-116476, an upper steering barrel is connected to a lower steering barrel so that it can be bent up and down, and the tilting of the handle is controlled together with the upper steering barrel. (vertical position),
The upper steering barrel is fixed to the fixed frame with fastening bolts and nuts. In order to prevent the support plate from slipping with respect to the fixed frame, a washer is placed on the knurl provided around the bolt insertion hole of the fixed frame and fastened with a nut.

However, the above-mentioned fixing device requires a spring to disengage the knurling when adjusting the inclination of the upper steering barrel, and has many components.
Assembly is complicated. Also, if you loosen the nut with the tilt lever, the upper steering barrel will move to the lowest position due to its own weight, so if there is no spring to pull the upper steering barrel to the highest position, you will need to hold the upper steering barrel with one hand while holding the other. Tightening the nut using the tilt lever with one hand becomes cumbersome.

[Problems to be solved by the invention] In view of the above-mentioned problems, the purpose of the invention is to create a restraining force that suppresses the movement of the upper steering tube even if the nut is loosened by the tilt lever, so that the upper steering tube can be operated with a small operating force. To provide a tilt handle fixing device capable of adjusting a cylinder to a desired inclination.

[Means for Solving the Problems] In order to achieve the above object, the structure of the present invention is such that long holes in the vertical direction are provided in both side walls of a fixed frame made of an inverted U-shaped plate fixed to the vehicle body side, and the upper A through hole is provided in both side walls of a U-shaped support plate connected to the peripheral wall of the steering tube, and the both side walls of the support plate are vertically slidably engaged with the inner surfaces of both side walls of the fixed frame, and the long hole and the through hole are formed. A nut with a tilt lever is screwed onto a fastening bolt that passes through the support plate, and a protrusion formed on an elastic plate piece that protrudes forward from one side wall of the support plate is formed on the inner surface of one side wall of the fixed frame in a vertically arranged corrugated shape. It is elastically engaged with the uneven surface of.

[Function] Since the protrusion of the elastic plate piece of the support plate connected to the upper steering tube is pressed against the corrugated uneven surface of the side wall of the fixed frame, even if the nut is loosened by the tilt lever, the upper steering tube will not move. Don't move. The inclination (vertical position) of the above-mentioned steering barrel can be adjusted by simply applying a slight operating force to the handle, and by tightening the nut using the tilt lever, the upper steering barrel is fixed. The operating force applied to the handle for adjustment is determined by the elastic engagement force between the corrugated uneven surface and the elastic plate piece.

[Embodiment of the invention] As shown in FIG. 2, a steering shaft 2 to which a handle is connected is supported by an upper steering barrel 5. Upper steering tube 5
An intermediate portion of the instrument panel is supported by a guide bracket 4 via a rubber mount 3 on the lower wall of the instrument panel on the vehicle body side. A U-shaped support plate 14 connected to the upper end of the upper steering barrel 5 is sandwiched between a fixed frame 6 made of an inverted U-shaped plate, and a fastening bolt 25 (FIG. 4) and a nut 12 are inserted through the two. tightened by. The fastening bolt 25 moves up and down together with the support plate 14 along the long holes 13 provided in both side walls of the fixed frame 6, thereby assisting in the adjustment of the upper steering barrel 5.

The nut 12 is attached to the tilt lever 9 by the bolt 10.
are combined. The fixed frame 6 is fixed to the lower wall of the instrument panel via a horizontal mounting plate 7.
A triangular mounting plate 8 is coupled to the upper end of the upper steering barrel 5, and a handle bearing portion is coupled to the mounting plate 8.

As shown in FIG. 3, the steering shaft 2 is actually divided into an upper half and a lower half, and the upper half and the lower half are connected by a connecting pipe 16. Connecting pipe 1
6 deforms in response to a collision load to protect the driver.

As shown in FIG. 4, the upper edge of the support plate 14 is joined to the peripheral wall of the upper steering tube 5 by welding. The fastening bolts 25 pass through holes provided on both side walls of the support plate 14 and elongated holes 13 in the vertical direction (preferably arcuate) provided on both side walls of the fixed frame 6, and are inserted into the sliding ring 21.
is extrapolated and the nut 12 is screwed. The tip of the nut 12 has a conical shape and is engaged with the conical hole 23 of the tilt lever 9. The tilt lever 9 is fixed to the nut 12 by screwing a bolt 10 that fits the seat plate 24 into the nut 12.

The head 25a of the fastening bolt 25 is engaged with a shallow groove provided along the long hole 13 on the outer surface of the side wall of the fixed frame 6. Similarly, the sliding ring 21 is also engaged with a shallow groove provided along the elongated hole 13 on the outer surface of the side wall of the fixed frame 6.

As shown in FIG. 1, according to the present invention, the support plate 1
4, an L-shaped elastic plate piece 32 is fixed with bolts 31. The elastic plate piece 32 extends forward from the side wall of the support plate 14 and has a ball 35 in a recess provided at the end.
(Fig. 5) is engaged. A wavy uneven surface 33 arranged in the vertical direction is formed on the inner surface of the side wall of the fixed frame 6, and the aforementioned ball 35 is elastically engaged with the uneven surface 33. As shown in FIG. 6, a protrusion 32a that engages with the uneven surface 33 may be formed at the end of the elastic plate piece 32.

Next, the operation of the tilt handle fixing device according to the present invention will be explained. When the nut 12 is loosened by the tilt lever 9, the support plate 14 sandwiched between the fixed frame 6 is loosened, and a gap is created between the two. However, since the elastic plate piece 32 coupled to the support plate 14 is engaged with the uneven surface 33 of the fixed frame 6, the upper steering barrel 5 is held at its inclination.

In FIG. 2, when the handle is moved up and down, the upper steering barrel 5 tilts about the connecting pin with the lower steering barrel, and the support plate 14 moves along the fixed frame 6. At this time, the fastening bolt 25 moves along the elongated hole 13 of the fixed frame 6, and the protrusion of the elastic plate piece 32 rides over the uneven surface 33 of the fixed frame 6 and engages with a new recess. When the nut 12 is tightened with the tilt lever 9 at the desired inclination (vertical position), the fixed frame 6
The support plate 14 is held between the upper steering cylinder 5 and the upper steering cylinder 5 to be fixed at a desired inclination.

As described above, even if the tilt lever 9 is loosened, the movement of the upper steering cylinder 5 due to its own weight is suppressed by the engagement of the protrusion of the elastic plate piece 32 of the support plate 14 and the uneven surface 33 of the fixed frame 6. By simply applying a slight operating force to the handle, the inclination of the upper steering tube 5 changes and can be adjusted to a desired inclination. Adjustment of the inclination of the upper steering tube 5 and tightening of the nut using the tilt lever 9 can be performed independently.

[Effects of the invention] As described above, the present invention forms a corrugated uneven surface on the inner surface of the side wall of the fixed frame, and fixes an elastic plate piece to the support plate of the upper steering tube, so that the protrusion of the elastic plate piece has an uneven surface. Because it is elastically engaged with the surface, even if the nut is loosened using the tilt lever, the upper steering barrel will not move, and by simply applying a slight operating force to the handle with one hand, you can adjust the tilt to the standard. , the tilt of the handle can be adjusted.

It is very easy to operate, as it can be adjusted based on the existing handle inclination, and the handle inclination can be adjusted and fixed in stages.

Compared to the conventional example, there are fewer component parts and assembly is easier.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the main parts of the tilt handle fixing device according to the present invention, FIG. 2 is a perspective view showing the overall configuration, FIG. 3 is a side view, and FIG. 4 is a front sectional view. FIG. 5 is a plan sectional view of the main part, and FIG. 6 is a plan sectional view of the main part according to another embodiment of the present invention. 5... Upper steering tube, 6... Fixed frame, 9... Tilt lever, 12... Nut, 13... Long hole, 14
... Support plate, 15 ... Through hole, 25 ... Fastening bolt, 32 ... Elastic plate piece, 33 ... Uneven surface.

Claims (1)

[Scope of utility model registration request] A fixed frame made of an inverted U-shaped plate fixed to the vehicle body has elongated holes in the vertical direction on both sides, and a through hole is provided in both sides of a U-shaped support plate connected to the peripheral wall of the upper steering tube. The two side walls of the support plate are vertically slidably engaged with the inner surfaces of both end walls of the support plate, and a nut having a tilt lever is screwed onto the fastening bolt passing through the elongated hole and the through hole. A fixing device for a tilt handle, characterized in that a protrusion formed on an elastic plate piece that protrudes from above is elastically engaged with a vertically arranged corrugated uneven surface formed on the inner surface of one side wall of a fixing frame.