JPS6041259B2 - Actuation force adjustment device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an actuation force adjustment device, and more particularly to an actuation force adjustment device that adjusts the actuation force in response to the actuation force applied directly to an interlocking movement bag.

Conventionally, operating force adjustment means have already been proposed in which when the opening operating force applied to an operating device such as a vehicle door reaches a predetermined value, an elastic damper acts to generate a resistance force to the operating force. ing.

However, this type of conventional device has the disadvantage that it is difficult to appropriately adjust the operating speed in accordance with the operating force applied to the actuating device. SUMMARY OF THE INVENTION An object of the present invention is to provide a novel actuation force adjustment device that appropriately adjusts the actuation speed according to the actuation force applied to the actuation device.

An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, an operating force adjusting device 10 according to the present invention is disposed on a car bran body 11, and a hinge 12 is attached to the body 11.
The door 13 is connected via a wire 14 to the counterclockwise rotation movement in the drawing.

That is, one end 15 of the wire 14 is fixed to the door 13, the middle part thereof is held by a guide 16, and the other end is connected to a predetermined location of the actuation force adjustment device 10 as described later. The adjustment device 101 functions to adjust and control the tension of the wire 14 in accordance with the opening speed of the door 13 and, therefore, the speed of the wire 14, as will be described later. As is clear from FIG. 2, the operating force adjustment device 10' has a resin body 17 and a metal body 18 that are fixed to each other, and a resin or rubber cap 19 is provided at the lower left end of the body 17. Fixedly installed.

The first diaphragm 20 has an outer periphery on both bodies 17 and 1.
8, and a pair of resin reinforcing plates 21 and 22 are fixed to the inner periphery of the body, thereby partitioning an atmospheric pressure chamber 23 and a negative pressure working chamber 24 in the body. A spring 25 is stretched between the plate 21 and the body 18 in the atmospheric pressure chamber 23, and the movable means 26 consisting of the diaphragm 20 and the plates 21, 22 is arranged so that the plate 22 is connected to the shoulder 27 of the body 7 or It is normally maintained at a position where it contacts the fixing member 28. A movable rod 30. is attached to the plate 21 via a plate 29. The above-mentioned wire 14 is fixed to the right end of the rod 30 extending from the body 8 to the outside. A metal isolation member 32, which is held against the shoulder of the body 7 by the fixing member 28 and thereby holds the outer periphery of the second diaphragm 31 between it and the body 17, is formed on the left side thereof. The atmospheric pressure chamber 33 is separated from the negative pressure chamber 24 described above.

The second diaphragm 31 has a pair of resin rocking members 34 and 35 on its inner periphery to constitute a rocking means 52, and an internal space chamber 36 formed between the two members 34 and 35 is a rocking member. It is connected to the atmospheric pressure chamber 33 via an orifice passage 37 formed in the moving member 35 . Inside the space chamber 36, a spring 39 is provided on one end of a passage village 41 fixed to a seat 40 provided on the swinging member 34 and the body 7 by the other end of a spring 39, one end of which is locked to a retainer 38. sheet 4
A valve member 43 that can come into contact with 2 is disposed. Note that the retainer 3 is fixed by a screw 44 screwed into the swinging part village 35.
By being able to adjust the position of 8 as appropriate, the spring 39
The biasing force of can be adjusted as appropriate. The passage member 41 is configured to always receive negative pressure from a negative pressure source such as an intake manifold of a car shrine through an inlet 45 formed in the resin body 17, and the negative pressure inside the route section 41 is Actuation force adjustment device 1
When each part of 0 is in the normal position shown in the figure, the body is moved by the second diaphragm 31 and the swinging member 34 between the seat 42 and the valve member 43 separated from the seat 42, and between the passage member 41 and the swinging member 34. It is connected to a chamber 46 partitioned within.

The chamber 46 is constantly connected to the negative pressure operating chamber 24 via passages 47 and 48 formed in the body 7 and the isolation member 32, respectively. A spring 49 that biases the swinging member 34 to the right in the figure is disposed within the chamber 46, and the biasing force of the spring 49 can be adjusted in position by a screw 50 that is screwed into the body 17 in an airtight manner. Since one end thereof is locked to the retainer 51, it can be adjusted freely. In this manner, when the negative pressure within the chamber 46 reaches a predetermined value that overcomes the spring 49, the swinging means 52 moves to the left in the figure. When the valve member 43 engages the seat 42 in response to the movement, fluid communication between the inlet 45 and the chamber 46 is blocked. When sufficient pressure is allowed to be introduced into the chamber 46 for the swinging means 52 to move further to the left, the seat 40 of the swinging member 34 separates from the valve member 43 whose movement is regulated by the seat 42. , entrance 45
A chamber 46 spaced apart from the chamber 46 is connected to the atmospheric pressure chamber 33 via an orifice 37 . Therefore chamber 4
6 decreases and the swinging means 52 moves to the spring 49.
The illustrated position is such that the seat 40 comes into contact with the valve member 43 to block the flow between the chambers 36 and 46, and in some cases, the seat 4 of the swinging member 34 separates the valve member 43 from the seat 42. At this point, the chamber 46 is brought into communication with the entrance 45. Thereafter, as the above action is repeated, the negative pressure in the chamber 46, and thus the negative pressure in the negative pressure working chamber 24, is adjusted to approximately a predetermined value. An air hole 53 is formed in the cap 19, and the air flows through the hole 53 to the resin sheet member 5.
4 and a filter 56 held within the body 17 by a sealing material 55 to reach a chamber 57 .

The chamber 57 is constantly connected to the atmospheric pressure chamber 33 described above via a passage (not shown). A one-way valve 59 that is biased to the left in the figure by a spring 58 is disposed within the chamber 46, and a valve portion 6 provided on the valve 59 is normally in contact with the seat member 54. The chamber 46 is converted into an atmospheric chamber 57.
It is divided from When the negative pressure value in the chamber 46 reaches an extremely high set value, the one-way valve 59 is actuated in the right direction against the spring 58, and the valve portion 60 is separated from the seat member 54, thereby causing the inside of the atmospheric chamber 57. of the atmosphere is frequently introduced into the chamber 46 and thus into the chamber 24. It is clear that when the negative pressure value in the chamber 46 decreases to the set value, it returns to the open state as shown. The left end 61 of the one-way valve 69 is connected to the seat member 5
The one-way valve 59 is extended into the central hole 62 of the one-way valve 59, thereby ensuring the operation guidance of the one-way valve 59. The operation of the device of the present invention described in detail above is as follows.

Normally, when the door 13 is open, each part of the operating force adjustment device 10 is in the position shown in FIG. 2, and the negative pressure value in the negative pressure operating chamber 24 is approximately constant as described above. Adjusted and maintained at a predetermined value.

Here, when the door 13 is opened relatively slowly,
The rod 30 of the actuating force adjusting device 10 moves relatively smoothly in FIG. 2 via the wire 14 which moves during the actuation.

Therefore, the movable means 26 moves relatively slowly and the negative pressure value in the negative pressure working chamber 24 increases due to the volume increase. Therefore, when the negative pressure value in the chamber 46 connected to the chamber 24 increases and the force acting on the diaphragm becomes greater than the combined force of the spring IJ rings 49 and 39, the seat 40 separates from the valve member 43. Therefore, from the atmospheric chamber 33, through the orifice 37 and the chamber 36, to the chamber 46, and therefore to the negative pressure working chamber 2.
4, the atmosphere is allowed to be introduced. Here, since the movement of the movable means 26 is relatively slow, the amount of air introduced into the working chamber 24 via the orifice 37 is relatively well tracked.
The rate of increase in the vacuum value in the vacuum working chamber 24 in opposition to the opening actuation force of the door 13 via the movable means 26 and thus the rod 30 and the wire 14 is relatively limited. When the door 13 is opened rapidly, the volumes of the chambers 24 and 46 are rapidly increased, and the negative pressure values within the chambers 24 and 46 are rapidly increased.

Therefore, as described above, the chambers 24 and 46 are connected to the atmospheric chamber 33 by the action of the swinging means 52 and the valve member 43, but the introduction of atmospheric air into the chambers 24 and 46 narrowed by the orifice 37 causes a sudden negative pressure value. Unable to follow the increase, the negative pressure value in the negative pressure working chamber 24 that opposes the opening actuation force of the door 13 via the movable means 26, therefore the rod 30, and the wire 14 acts sufficiently large. In short, the orifice's ability to introduce atmospheric air into the negative pressure working chamber 24 is limited depending on the speed at which the door 13 opens, so the faster the door 13 opens, the faster the door opens. It is possible to increase and control the negative pressure value in the negative pressure working chamber 24 facing the power. Note that the opening speed of the door 13 is extremely rapid, and the opening speed of the door 13 is extremely rapid.
, 46 reaches the set maximum value, the one-way valve 59 opens as described above to supply atmospheric air to the chambers 24 and 46, and the negative pressure value in the working negative pressure chamber 24 is set. Prevent it from increasing beyond the maximum value. Therefore, the negative pressure value in the negative pressure working chamber 24 is increased without limit, and by opening the door 13, the negative pressure value in the negative pressure working chamber 24 is increased.
, 24 and the negative pressure value in the chamber reaches a set value or less, it is clear that the one-way valve 59 is closed again by the spring 58 and blocks further introduction of the atmosphere. The closing operation of the door 13 is performed by installing a spring 25 in the operating force adjusting device 10 to return the movable means 26 to the position shown in FIG.
It is clear that this is ensured by the negative pressure maintained within.

As detailed above, in the actuating force adjusting device according to the present invention, the actuating force is adjusted depending on the actuating force applied to the actuating device that is moved directly by the adjusting device, such as the opening speed of the door. Since it functions to generate a biasing force for adjustment, even if a strong operating force is inadvertently applied to the actuating device, the actuating adjustment will not be activated suddenly and the desired adjustment will be made. This has the effect of guaranteeing operation.

Furthermore, since the actuation force adjustment device generates negative pressure proportionally to the actuation force applied to the actuation device, sudden operation of the actuation device is extremely effective. This has the practical effect of being limited to In the embodiment of the present invention described above, the operating force adjustment device is linked to the opening operation of the door, but this is not necessarily essential to the present invention, and the operating force adjustment device is linked directly to the adjustment device. , it is easily understood that other devices may be used, and the movable means that partitions the negative pressure working chamber and the swinging means that partitions the negative pressure chamber and the atmospheric pressure chamber and have a valve member, respectively. It is obvious that the pressure operating chamber and the negative pressure chamber may be connected to each other by appropriate piping by constructing the chamber in a separate body.

[Brief explanation of drawings]

FIG. 1 is a partial system diagram showing an application system of the actuation force adjustment device according to the present invention, and FIG. 2 is an enlarged sectional view of the actuation force adjustment device of FIG. 1. 10: Actuation force adjustment device, 13: Door (actuation device), 17
, 18: Body, 23: Atmospheric pressure chamber, 24: Personnel pressure operating chamber,
26: Movable means, 30: Rod, 33: Atmospheric pressure chamber, 37
: Orifice, 40'42: Seat, 43: Valve member, 4
5: Inlet, 46: Chamber, 52: Swinging means, 59: One-way valve. Figure 1 Figure 2

Claims (1)

[Claims] 1. A movable means that is actuated in one direction by the actuating force applied to the actuating device, and a negative pressure generated by the movable means that urges the movable means in the other direction in accordance with the actuating force. A rocking means that partitions a second negative pressure chamber and an atmospheric pressure chamber connected to the first negative pressure chamber, and swings by a fluid pressure difference between the second negative pressure chamber and the atmospheric pressure chamber; selectively controlling an inlet leading to a pressure source, communication between the inlet and the second negative pressure chamber, and communication between the atmospheric pressure chamber and the second negative pressure chamber according to the swinging of the swinging means; and an orifice formed in a passage communicating between the atmospheric pressure chamber and the second negative pressure chamber, thereby reducing the first negative pressure from the atmospheric chamber in response to the actuation force. An operating force adjustment device characterized by controlling atmospheric supply to the chamber and controlling negative pressure that urges the movable means in the other direction.