JPS587148Y2 - headlamp tilting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for varying the linear momentum of a linkage in a headlamp tilting device, and particularly, but not exclusively, to a motion damping device for reducing linear momentum.

More particularly, the present invention relates to a motion damping device for use in a vehicle headlamp tilting device.

According to the present invention, a device for changing the linear momentum of a linkage device in a headlamp tilting device is provided,
The device includes a first element, a second element, a fixed part, a first elastic member, and a second elastic member, the first element and the second element being able to slide relative to each other and with respect to the fixed part. are slidable relative to each other, the fixed part is slidable relative to the first element and the second element, and the first element and the second element act on each other by a first elastic member. , the second elastic member is disposed between the second element and the fixing part and exerts an action on the second element opposite to the action of the first elastic member, so that the second element It assumes an equilibrium position in response to a pressing force in the opposite direction.

Preferably the first element provides an input and the second element provides an output.

Preferably the first and second elements are arranged coaxially.

The fixing part is preferably formed on a main body that accommodates adjacent ends of the pixel elements.

Also preferably, the first element has a tubular end, and extending into said end is an adjacent end of the second element.

The first element has a slot at an intermediate location and a receiver projecting laterally from the tubular end.

The second element has a receiving portion extending through the slot, and the first resilient member extends between and engages the two receiving portions.

Preferably each elastic member comprises a compression spring.

Preferably, an additional damper device is combined with one of the elements.

Most advantageously, the second element passes through the sleeve with a gap, placing the viscous material in the gap between the second element and the sleeve.

The viscous material is arranged to resist sudden relative movement between the sleeve and the second element, but to allow slow relative movement between them.

Advantageously, a reservoir for the viscous material is provided inside the sleeve.

Preferably the sleeve is formed within the main body or formed by a part of the main body.

Hereinafter, the present invention will be explained in detail based on the drawings.

Referring to FIG. 1, a motion damping device (device for varying linear momentum) includes a main body 1 housing adjacent ends of an input element 2 and an output element 3 extending from the main body 1 in opposite directions.

The input element 2 has a tubular shape and has a receiving flange 4 fixed to one end 5 through which the output element 3 passes.

The input element 2 and the output element 3 are relative to each other,
slides relative to.

A pair of opposed slots 6 are provided in the wall of the tubular input element 2 at its intermediate portion spaced from the end 5 .

A pair of receiving flanges 7 are fixed to the output element 3 adjacent to their ends located within the input element 2.

The flanges 7 each pass through the slots 6. A first compression spring 8 is arranged between and engages the flanges 4 and 7, and a second compression spring 9 is connected to a fixing part 10 formed by the internal recess of the main body 1 at the opposite end of the flange 4. It is arranged between the flanges T and engages the 7 langes 7.

The first and second compression springs 8 and 9 act in opposite directions.

The main body 1 is formed with a sleeve 11 at one end through which the output element 3 passes with a gap.

The end of the sleeve 11 remote from the rest of the main body 1 is closed off with a rubber cover member 12.

The cover member covers the end of the sleeve 11 and engages the output element 3 on the outside of the sleeve 11.

A viscous material 13 is disposed within the sleeve 11 and around the output element 30 portion within the sleeve 11 .

The viscous material is of a type that resists sudden relative movement between the sleeve 11 and the output element 30 but allows slow relative movement between them, and in this embodiment the viscous material is manufactured by Midland Silicones Limited. It is a commercially available silicone liquid with a viscosity of 60,000.0 senna to which the additive Aerosil is added.

Silicone fluids with viscosities between 20,000 and 100,000 senna can be used.

A groove 14 is provided in a part of the output element 3, said part being in the sleeve 11 and forming a reservoir for the viscous material 13.

It will be clear that the position of the output element 3 relative to the input element 2 is determined by the springs 8 and 9.

The output element 3 is in a position where the opposing actions of the two springs 8 and 9 are balanced, and in effect the output element 3 is in equilibrium with respect to the output element 2.

To explain the operation of the device of the present invention, if the input element 2 is moved to the right in the figure, the flange 4 is moved to the right and the spring 8 is compressed between the flange 4 and the flange 7.

This disturbs the equilibrium between the actions of springs 8 and 9. The equilibrium between these springs is re-established by moving the flange 7 to the right in the figure.

Therefore, the output element with the flange 7 attached is moved to the right in the figure.

If springs 8 and 9 have the same dimensions, flange 7 and output element 3
The balance between springs 8 and 9 is reset after input element 2 has moved half the distance that it has moved.

Therefore, input element 2 is moved 1 inch (2,54 crr1) to the right.
), the output element 3 moves 1/2 inch (1
, 27 cm).

Even if the output element 3 suddenly moves, this movement is suppressed by the viscous material 13 within the sleeve 11, and the output element 3 only moves relatively slowly.

In this way, when this damping device (a device that changes linear momentum) is attached to the headlamp tilting device of a vehicle,
The headlamp is not subjected to sudden movements or vibrations resulting from vibrations of the springs 8 and 9 or vibrations of the input element 2 which occur when the vehicle passes over rough terrain.

When the flange 4 is separated from the end of the main body 1 opposite to the fixed part 10 and the input element 2 is moved to the left in the figure,
The tension in spring 8 is reduced such that the equilibrium between springs 8 and 9 is broken, flange 7 moves to the left in the figure, and spring 8
and 9 will be set again.

In this case too, the displacement of the output element 3 caused by the displacement of the flange 7 is only half of the movement of the input element 2 due to the aforementioned coupling structure including the springs 8 and 9.

Referring to FIG. 2, the motion damping device and similar parts shown in FIG. 1 are designated with the same reference numerals plus 100.

In this embodiment, the main body 101 with the fixing part 110 fixed thereto is placed inside the tubular end 105 of the input element 102 .

The main body 101 and its extension 111 contain an output element 103 projecting from one end of the extension 111.

The output element 103 has a gap with respect to the main body 101 and slides relative to this main body.

The viscous material 113 is added in this amount.

The slot 108 in the middle part of the main body 101
1 and the inside of the tubular end 105 are communicated.

Tubular end 105 provides a reservoir for viscous material 113 and houses springs 108 and 109.

These springs are inserted between the seven flanges 104 and 107 and between the flange 107 and the fixed part 1100, respectively.

Flange 104 is fixed to tubular end 105 and flange 1
07 is attached to the output element 103 by a pin 115.

The air hole 116 is located in the main body 101 on the side away from the extension part 111.
Be prepared for the edge.

The main body 101 and its extension part 111 are attached to the mounting part 1 on the fixed member.
It is attached via 17.

The operation of the damping device (device for changing linear momentum) shown in FIG. 2 is the same as that shown in FIG.

A rubber cover member (not shown) is provided to seal the ends of the main body 101 and the tubular end 105 to prevent escape of viscous material during use.

Embodiments of the present invention include the following.

(1) The first element 2, 102 provides mechanical input, and the second element 3, 103 provides mechanical output.

(2) The first and second elements 2, 3, 102, 103 are arranged coaxially.

(3) The fixing part 10, 110 is formed on the main body 1, 101, and the main body has a second button and a second element 2, 3° 102.10.
Accept at least one end of 3.

(4) The first element 2, 102 has a tubular end 5, 105, the adjacent end portion of the second element 3, 103 extends into said tubular end portion, and the first element 2, 102 has a slot l- 6,
106 and extending laterally from the tubular end.
4, the second element 3,103 is also a slot) 6,106
The first elastic member 8 has a receiving portion 7,107 extending through the first elastic member 8.
．． 108 extends between and engages the two receiving parts 4, 7, 104 and 107.

(5) Each elastic member consists of compression springs 8, 9, 108, 109.

(6) The braking unit has the first and second elements 2,3°10
2 103.

(7) The second element 3, 103 is inserted into the sleeve 1 with a gap.
1,105, and a viscous material 13,113 is provided in the gap between the second element and the sleeve, said material 13,113
The arrangement is such that sudden relative movement between the sleeve and the second element is suppressed, but slow relative movement is allowed between them.

(8) Sleeve 11 for viscous material 13, 113
．． 105.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of one embodiment of the motion damping device as a device for changing linear momentum of the present invention, and FIG. 2 is a longitudinal sectional view of another embodiment of the motion damping device of the present invention. 1...Main body, 2...Input element, 3...
...output element, 4.7...flange, 6.
...Slot, 8, 9...Compression spring, 1
．． 0... Fixed part, 11... Sleeve,
12...Rubber cover part, 13...
Viscous material, 14... Groove, 101...
Main body, 102... Input member, 103...
- Output member, 105... Tubular end, 106...
...Slot, 107 ...Flange, 10
8゜109...Spring, 110...Fixing part, 111...Extension part, 113...Viscous material, 116...Air hole , 117...
・Mounting part.

Claims (1)

[Scope of utility model registration request] an actuating linkage including a device for changing linear momentum;
The device for changing the linear momentum includes a first element (♀), a second element, a fixed part, a first elastic member, and a second elastic member, and the first element and the second element are slidable relative to each other and the The first element and the second element interact with each other by means of a first elastic member, and the second elastic member is arranged between the second element and the fixed part. is arranged to exert an action on the second element in a direction opposite to the action of the first elastic member;
Thus, in a headlamp tilting device in which the second element assumes an equilibrium position under pressure forces in opposite directions from the first and second elastic members, one of the elements 2, 102 is movable. when the first and second elastic members 8, 9, 108, 109 are moved, the other element 3, 103 provides a mechanical output that moves in response to the resetting of the equilibrium. A headlamp tilting device characterized in that it is configured to give.