JPS6152575U

JPS6152575U -

Info

Publication number: JPS6152575U
Application number: JP13793884U
Authority: JP
Priority date: 1984-09-13
Filing date: 1984-09-13
Publication date: 1986-04-09
Also published as: JPH0120224Y2

Description

[Brief explanation of the drawing]

第１図および第２図は、従来の運転台持上装置
を自動車に装着した場合の側面図として示し、第
１図あるいは第２図において、アクチユエータ装
置１０を本考案のアクチユエータ装置に置換した
場合、第１図あるいは第２図はそのまま本考案の
実施例となり、第３図は、従来の運転台持上装置
をシステム図によつて示したものであり、第４図
は、本考案における運転台持上装置の一実施例を
システム図によつて示したものである。実施例に使用した符合は下記のとおりである。
１および２：アクチユエータ、１ａおよび２ａ：
シリンダ、１ｂおよび２ｂ：ピストン、１ｃ，１
ｄ，２ｃおよび２ｄ：押しのけ室。３および４：
管路、３ａおよび４ａ：絞り流路、３ｂ，３ｅ，
４ｂおよび４ｅ：パイロツトチエツク弁、３ｃ，
３ｄ，３ｆ，４ｃ，４ｄおよび４ｆ：管路、３ｇ
，３ｈ，４ｇおよび４ｈ：パイロツト管路。５：
運転台、６：シヤーシ、１０Ａおよび１０Ｂ：ア
クチユエータ装置。 1 and 2 are side views of a conventional cab lifting device installed in a car, and in FIG. 1 or 2, the actuator device 10 is replaced with the actuator device of the present invention. , Fig. 1 or 2 is an embodiment of the present invention as it is, Fig. 3 is a system diagram showing a conventional cab lifting device, and Fig. 4 is a system diagram of the conventional cab lifting device. An embodiment of the platform lifting device is shown in a system diagram. The symbols used in the examples are as follows.
1 and 2: Actuator, 1a and 2a:
Cylinders, 1b and 2b: Pistons, 1c, 1
d, 2c and 2d: displacement chambers. 3 and 4:
Pipe lines, 3a and 4a: throttle channels, 3b, 3e,
4b and 4e: pilot check valve, 3c,
3d, 3f, 4c, 4d and 4f: pipe line, 3g
, 3h, 4g and 4h: pilot line. 5:
Cab, 6: Chassis, 10A and 10B: Actuator device.

Claims

[Claims for Utility Model Registration] 1. Each of the first check valve device and the second check valve device includes: a: a first pilot check between the first pipe line and the second pipe line; b: a second pilot check valve is interposed between the second pipe line and the third pipe line; c: the second pilot check valve is configured to The first pilot check valve in the case where the flow resistance when the valve is opened in response to a fluid pressure signal and the working fluid flows out from the third pipe line to the second pipe line side is the same. The first actuator and the second actuator each have a sufficiently small value compared to the value of the flow resistance in the cylinder. b: in the cylinder, a first displacement chamber is formed on one side in the axial direction of the piston, and a second displacement chamber is formed on the other side; c: the piston or One of the cylinders is connected to the driver's cab, and the other of the cylinders is connected to the chassis. The first check valve device is pivotally connected to a part of the chassis, and in the first check valve device, a. a displacement chamber communicates with the third conduit, and the second displacement chamber of either the second actuator or the first actuator communicates with the third conduit; b the first pilot check valve; and each of the pilot pipe lines in the second pilot check valve has the above-mentioned structure, wherein each of the pilot pipe lines in the second check valve device communicates with the first pipe line in the second check valve device, and the second check valve device a: The first displacement chamber in either the first actuator or the second actuator communicates with the second conduit, and the third conduit communicates with the first displacement chamber of either the first actuator or the second actuator. The first displacement chamber in either the second actuator or the first actuator communicates with each other, and b: the respective pilot pipes in the first pilot check valve and the second pilot check valve are in communication with each other. , each communicating with the first conduit in the first check valve device. The cab lifting device having the above configuration. 2. A utility model registration request in which the second pilot check valve in the first check valve device is integrally configured with the actuator on the side of the first check valve device with which the third pipe line communicates. The cab lifting device according to item 1. 3. A utility model registration request in which the second pilot check valve in the second check valve device is integrally constructed with the actuator on the side of the second check valve device with which the third pipe line communicates. The cab lifting device according to item 1. 4 a: The second pilot check valve in the first check valve device is configured integrally with the actuator on the side of the first check valve device with which the third pipe line communicates, b: The second pilot check valve in the first check valve device The second pilot check valve in the second check valve device is integrally constructed with the actuator on the side of the second check valve device with which the third pipe line communicates. 1st
Driver's cab lifting device as described in section.