JPS6150164B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a position adjustment device for relatively movable members such as a steering wheel and a seat.

Conventionally, devices as shown in FIGS. 1 and 2 have been used as steering handle position adjustment devices. FIG. 1 shows a device for adjusting the longitudinal position of the steering handle 2. A bracket 16 and a bracket 9 are provided on the steering column 1, and the bracket 16 is supported by a bracket 7 on the vehicle body side with a pin 8. The bolt 13 supported at 9 is inserted into the arc-shaped elongated hole 10a of the bracket 10 on the vehicle body side, and then tightened and fixed with a nut.

FIG. 2 shows how to adjust the position of the handle 2 in the front-rear and up-down directions. That is, the bracket 7 is placed in the lower part of the vehicle body, and the planar cross section is U in the upper part.
A cylindrical holding member 6 fitted onto the steering column 1 is connected to the bracket 7 with a pin 8, while the bracket 10 has a planar cross section of U.
The letter-shaped brackets 9 are placed one on top of the other, and a nut 12 is screwed onto a bolt 13 passing through them to connect them to each other. The bolt 13 passes through an elongated hole 10a provided in the bracket 10 that extends substantially horizontally, and an elongated hole 9a provided in the bracket 9 that extends in the vertical direction, so that the bracket 9 can be fixed in a predetermined position with respect to the bracket 10. It's becoming like that.

However, in the conventional adjustment device described above, if the nut loosens from the bolt 13 due to vibrations of the vehicle body, the handle 2 may become misaligned.

To deal with such loosening of the nut, as shown in FIG. 3, both the brackets 10 and 9 are provided with teeth 10c and 9c that engage with each other, so that even if a certain degree of loosening occurs due to this engagement, the handle will remain intact. However, if the nut 14 is forcibly tightened when the teeth 10c and 9c are not completely and deeply engaged, the bolt 13 will loosen later and the handle will shake. This may damage the teeth and make subsequent adjustments difficult.

Furthermore, as shown in FIG. 4, in order to suppress relative sliding between the bracket 10 on the vehicle body side and the bracket 9 on the steering column side, a plurality of pin holes 10d are provided in parallel in place of the elongated holes in the bracket 10. , the pin 17 supported on the bracket 9 is inserted into the pin hole 10d.
It has also been proposed to fix the position of the handle by inserting it through one of the brackets, but in this conventional example, it takes a lot of effort to align the pins of the brackets with the pin holes and tighten and secure both brackets. It takes a lot of time, and the operability is poor.

An object of the present invention is to provide a position adjustment device for relatively movable members that are superimposed on each other and fixed by a clamping member, in which a pin supported on one member is automatically connected to a pin supported on one member by a tightening operation of the clamping member. An object of the present invention is to obtain a position adjusting device in which engagement of a member with a pin hole is achieved.

Therefore, in the configuration of the present invention, the pin is supported on a connecting plate coupled to a first member, and the pin is supported on a second connecting plate coupled to a second member movable relative to the first member. The elongated hole and the plurality of pin holes are arranged so that the second member can be moved relative to each other, and the pin of the first connecting plate is inserted into the pin hole of the second connecting plate, and the first and second overlapping the connecting plates of the first
A first tightening member supported on the connecting plate and a second tightening member supported on the second connecting plate are screwed together through the elongated hole, and the first tightening member is screwed into the first tightening member. The pin is forcefully engaged with the formed cam surface, and the first
The pin is inserted into the pin hole by tightening the tightening member.

The configuration of the present invention will be explained based on an example.
Figures 5 and 6 show an embodiment of the handle position adjustment device. A bracket 21 is fixed to the lower part of the vehicle body, and a bracket or a connecting plate 23 is fixed to the upper part of the vehicle body. The brackets or connecting plates 26 fixed at 1 are superimposed and tightened at predetermined positions using tightening bolts and nuts or tightening members 29, which will be described later. A holding member 27 is fixed to the connecting plate 26, and the pin 3 is attached to this.
I support 3. Further, the connecting plate 23 is provided with an arc-shaped elongated hole 31 centered on the pin 22, and furthermore, a plurality of pin holes 39 are formed along the elongated hole 31 at the upper edge with the same pitch as the pin holes 39. Notches 24 are provided respectively. Further, a bolt 34 is fixed to the steering column 1, passes through the elongated hole 31 and the connecting plate 26, and a tightening member 29 is screwed to the end thereof. A cam surface 37 is provided on the inner end surface of the tightening member 29 along the circumferential direction, so that the pin 33 is inserted into the pin hole 39 by the cam surface 37 when the tightening member 29 is tightened. For this reason, the pin 33 is slidably supported by the cylindrical holding member 27 and biased against the cam surface 37 by a spring (not shown).

Since the present invention is configured as described above, by loosening the tightening nut 29, the steering column 1 can be tilted in the front-rear direction about the pin 22.
At this time, the claw piece 25 rides over the teeth of the notch 24 of the connecting plate 23 and falls between the teeth, and the pin 33 just aligns with one of the pin holes 39. When the tightening member 29 is tightened, the pin 33 is automatically inserted into the pin hole 39 by the cam surface 37 of the tightening member 29, and at the same time, the tightening member 29 and the tightening bolt 34 are screwed together. Connecting plate 26 and connecting plate 2
3 is pressed against the wall portion 38 of the steering column 1 and is firmly fixed.

In addition, in the above embodiment, the notch 24 and the claw piece 2
5, the notch 24 is attached to the connecting plate 26 on the steering column side, and the claw piece 25 is attached to the connecting plate 2 on the vehicle body side.
3 may be provided respectively.

Figures 7 and 8 show an embodiment in which the handle position can be adjusted both forward and backward and up and down. A bracket 101 is supported in the upper part of the vehicle body, and a bracket 21 is supported in the lower part of the vehicle body.One end of the link 50 is supported by the bracket 101 with a shaft 100, and the other end is connected to the steering column 1 via a four-bar link mechanism to be described later. is connected with. Further, one end of the link 20 is connected to the bracket 21 with a pin 28, and the other end is connected with a boss portion 1a provided on the steering column 1 with a pin 32. The four-bar link mechanism connects links 30 and 65 to boss portions 1b and 1c provided on the steering column 1 with shafts 34 and 62, respectively.
This four-bar link mechanism is connected to the other end of the aforementioned link 50 using the shaft 51. Each link 50, 30, 65, 60 has 1 left and right
It consists of a pair of link plates.

As shown in FIG. 8, the links 50 are connected to each other by a cylindrical boss portion 53 at one end side of a pair of link plates 50a, and this boss portion 53 is connected to a pair of brackets 101 with a shaft 100. Supported. At the other end of each link plate 50a, a boss portion 54 is connected to a shaft 51. In the link 30, a pair of link plates 30a are connected to each other by a connecting plate 44, and a boss portion 43 provided at one end is supported by the aforementioned boss portion 1b by a tightening bolt or shaft 34. The right end of the shaft 34 is fixed to the link plate 30a by welding or the like, and a tightening member 29 having a cam surface 37 is screwed onto the left end threaded shaft. The other end of the link plate 30a is connected to the link plate 50a through the aforementioned shaft 51. The links 60 have one end portions of a pair of link plates 60a connected to each other by a boss portion 63, are supported by the shaft 51 between the boss portions 54, and are connected to each other by a boss 64 at intermediate portions. .

In FIG. 8, connecting plates 70, 80, and 90 are superimposed on the outer surface of the left link plate 30a,
Each is rotatably supported by a shaft 51. The connecting plate 70 is supported by the shaft 51 and the shaft 34, and is adapted to move integrally with the link 30. Connecting plate 80
is fixed at its upper end to the link plate 50a with a bolt 87, and is configured to move integrally with the link 50. The upper end of the connecting plate 90 is fixed to the end of the boss 64 by a bolt 97 in FIG. 8, so that the connecting plate 90 moves integrally with the link 60.

As shown in FIG. 9, the connecting plate 70 has a notch 73 formed in an arc-shaped edge centered on the shaft 51.
The pitch angle of the notch 73 is the same as that of the holes 92 and 82 described above.
is configured to match the pitch angle of A holding member 27 that guides and supports the pin 33 is fixedly supported on the connecting plate 70 adjacent to the hole of the shaft 34 . This holding member 27 is similar to that shown in FIG. The connecting plate 80 has an arc-shaped elongated hole 81 centered on the shaft 51.
A plurality of pin holes 82 are arranged in parallel along this elongated hole 81. And there is a notch 8 on the edge.
3 is formed. As shown in FIG. 11, the connecting plate 90 is provided with an arc-shaped elongated hole 91 centered on the shaft 51, and a plurality of pin holes 92 are arranged in parallel along this elongated hole 91.

When the connecting plate 70, the connecting plate 80, and the connecting plate 90 are stacked on top of each other and supported on the shaft 51, the elongated hole 81
and the elongated hole 91 match, and the pin 33 fits into the pin hole 82 1.
and one of the pin holes 92, and the teeth of the notches 73 and 83 match each other.

As shown in FIG. 8, a claw piece 25 is supported with a pin 42 at the end of the link plate 30a, and a notch 7
3,83.

The present invention is constructed as described above, and by rotating the link 50 about the shaft 100 in FIG. The position can be adjusted. Further, by rotating the link 30 about the shaft 51, the link 30
By changing the angle β between the steering wheel and the link 60, the vertical position of the steering handle 2 can be adjusted. When adjusting the angle α,
Relative rotation about the shaft 51 occurs between the connecting plate 90 that moves integrally with the link 50 and the connecting plate 70 that moves integrally with the link 60, and the pawl piece 25 made of a leaf spring clicks into the notch. At the point where the pin 33 falls between the teeth of 73, it matches one of the pin holes 82 and 92, respectively. By tightening the tightening member 29, the pin 33 is pushed into the pin hole 8 by the cam surface 37.
2,92.

Further, when adjusting the angle β, a relative rotation about the shaft 51 occurs between the connecting plate 80 that moves integrally with the link 30 and the connecting plate 70 that moves integrally with the ring 60, At the point where the claw piece 25 falls between the teeth of the notch 73 of the connecting plate 70, the pin 33
coincides with the pin hole 82.

In this way, the pin 33 supported by the connecting plate 70 automatically aligns with each pin hole 82, 92 of the connecting plate 80, 90, and when the tightening member 29 is tightened to the shaft 34, the pin 33 is attached to the cam surface 37. Therefore, the pin 33 is pushed and inserted into the pin holes 82 and 92. At the same time, the connecting plates 80 and 90 are tightly overlapped with each other by the tightening member 29, and the boss portion 43 of the link plate 30a
is firmly pressed against the end face of the

The connecting plate 70 plays the same role as the connecting plate 26 in the embodiment of FIGS. Similarly, the connecting plate 90 plays the same role as the connecting plate 23.

Since each link is not fixed directly, but is fixed between the connecting plates, the connecting plates can flex to be close to each other, and the rigidity of each link, which plays the role of supporting the steering column, can be maintained as necessary. can be increased. In addition, the connecting plate 7
0, 80, and 90 do not directly act on the lateral support of the steering column as mentioned above, so its lateral rigidity is not a problem, and flexible materials can be used, so the tightening effect of the tightening nut is ensured. becomes.

In the above embodiment, the claw piece 25 may be supported on the connecting plate 70 and the notch may be provided on the connecting plate 90. Further, instead of forming a notch in the connecting plate 80, the claw piece 25 may be supported and a notch may be formed in the connecting plate 90.

12 and 13 show an embodiment of a position adjustment device for a vehicle seat, etc. Frame 10 fixed to the floor of the vehicle
2, a sliding frame 103 supporting the seat is slidably supported.

The connecting plate 1 is attached to the fixed frame 102 by bolts 113.
04 is fixed, and a connecting plate 105 is connected to the sliding frame 103 with bolts 114. These connecting plates 104 and 105 are overlapped with each other, and the connecting plate 104 is overlapped at this overlapped portion.
A long hole 119 extending in the sliding direction of the sliding frame 103
A plurality of pin holes 118 are provided, and a notch 110 is formed at the edge of the connecting plate 104 at the same pitch as the pin holes 118. A cylindrical holding member 106 is fixed to the connecting plate 105, a pin 112 is slidably supported on the holding member 106, and a spring 116
is biased against the cam surface 107 of the tightening member 108. The tip of the pin 112 is connected to the connecting plate 1
05 and is adapted to be engaged with one of the pin holes 118. The tightening member 108 is the bolt 12
0 is integrally provided, and the elongated hole 11 of the connecting plate 104
9 and is screwed into a square nut 117. This nut 117 abuts against a guide 122 fixed to the connecting plate 104 and is prevented from rotating freely. A claw piece 109 is supported at the end of the connecting plate 105, and the tip thereof is engaged with a notch 110.

In the above-described embodiment, when the tightening member 108 is loosened from the state shown in FIG. Sliding frame 10
3 along the fixed frame 102, the connecting plate 105 stops when the claw piece 109 passes over the teeth of the notch 110 and falls between new teeth. At this time, the pin 112 just matches one of the pin holes 118. Therefore, the tightening member 10
When pin 8 is tightened, the cam surface 107 causes pin 1 to tighten.
12 is pushed down and engaged with the pin hole 118,
At the same time, the tightening member 108 is tightly screwed into the nut 117, and the connecting plate 105 is fixed to the connecting plate 104. This embodiment can also provide the same effects as those of the previous embodiment.

[Brief explanation of the drawing]

FIG. 1 is a side view of a conventional relatively movable position adjustment device, FIG. 2 is a side view of another conventional adjustment device,
FIG. 3 is a plan view of the fixing part of another conventional adjusting device;
FIG. 4 is a plan view of another fixing part, FIG. 5 is a perspective view of an adjusting device according to a second embodiment of the present invention, FIG. 6 is a front sectional view of the same, and FIG. 7 is a second embodiment of the present invention. FIG. 8 is a sectional view taken along the line - of FIG. 7, FIGS. 9, 10, and 11 are side views of each connecting plate, and FIG. 12 is a side view of the adjusting device according to the present invention. Front sectional view of the adjustment device according to the third embodiment, 13th
The figure is a perspective view of the same. 1: Steering column, 20: Link, 2
1: Bracket, 23, 26: Connecting plate, 24: Notch, 25: Claw piece, 27: Holding member, 29: Tightening nut, 30: Link, 31: Elongated hole, 33: Pin, 34: Tightening bolt, 35: Spring, 37: Cam surface, 39: Pin hole, 51, 61: Shaft, 64: Boss, 50, 60, 65: Link, 70, 80, 9
0: Connecting plate, 73, 83: Notch, 81, 91:
Long hole, 82, 92: Pin hole, 100: Shaft, 10
1: Bracket, 104, 105: Connection plate, 10
7: Cam surface, 108: Tightening member, 109: Claw piece,
110: Notch, 112: Pin, 117: Nut, 118: Pin hole, 119: Oblong hole.

Claims (1)

[Scope of Claims] 1. A pin is supported on a connecting plate coupled to a first member, and a pin is supported on a second connecting plate coupled to a second member movable relative to the first member. A long hole and a plurality of pin holes are arranged in the direction of relative movement of the second member, and the pin of the first connecting plate is inserted into the pin hole of the second connecting plate, and the first and second members are connected to each other. The connecting plates are stacked on top of each other, and a first tightening member supported on the first connecting plate and a second tightening member supported on the second connecting plate are arranged.
and a tightening member are screwed together through the elongated hole, and the pin is forcefully engaged with a cam surface formed on the first tightening member, and the first tightening member is tightened. A position adjusting device for a relatively movable member, characterized in that the pin is inserted into the pin hole by operation. 2. A plurality of notches are disposed on one of the first and second connecting plates in the same direction and at the same pitch as the pin hole, and the other supports an elastic claw piece that engages with the notch. The position adjustment device for a relatively movable member according to.