JPH0710068Y2 - Hydraulic compressor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a hydraulic compressor used for electrical work or the like, which has a remote control switch for controlling the hydraulic pressure of a hydraulic unit at hand.

(Prior Art) In electric work performed at a high place, a hydraulic compressor is used for compressing a metal sleeve or the like. The hydraulic compressor includes a hydraulic unit that sends operating hydraulic pressure, and a compression head that is connected to the hydraulic unit by a hydraulic hose and an air supply hose. An operator carries a compression head equipped with a compression die at a high place for work. The hydraulic unit
For example, it is placed on the ground work vehicle. Since the work may be performed in a live state, the control signal of the hydraulic unit and the hydraulic transmission mechanism are all made of an insulator to prevent an electric shock accident. The operation of the compression head is controlled by sending air pressure from an air balun attached to the compression head to an oil pressure unit through an insulating tube to change the oil pressure.

(Problems to be Solved by the Invention) In the above-described conventional pneumatic control method, since the operation of gripping and releasing the air balun for sending the air pressure must be performed with the compression head supported, the operability is poor. If it is bad and it is necessary to support the construction site by hand, there is a problem that another worker is absolutely necessary.

The present invention solves the above-mentioned conventional problems, and it is possible to perform a control operation extremely easily with one hand while supporting the head without using a pneumatic control method, and also to support the construction site by one person. It is intended to provide a hydraulic compressor that can be used.

(Means for Solving Problems) According to the present invention, in order to solve the above-mentioned problems of the related art, a hydraulic unit U for sending operating hydraulic pressure and a hydraulic hose.
Hydraulic unit U via 12 and optical fiber cables 2 and 3
And a compression head H provided with a switch device S for controlling the on / off of the light of the optical fiber cables 2 and 3, and the compression die is connected to The four operations of the compression head H such as standby, low pressure temporary compression, high pressure main compression, and recovery are controlled by combining four types of signals depending on whether the optical fiber cables 2 and 3 are on or off. The switch device S includes two optical fiber cables 2a, 3a, 2 having two input sides and two output sides.
b and 3b are introduced and the ends are held opposite to each other so that light can be conducted respectively. There is an optical fiber cable 2 inside the switch body 1.
4 positions of standby position, temporary compression operation position, main compression operation position and return operation position can be moved so that the ON / OFF combination of light between the ends of a, 3a, 2b, 3b can be changed in 4 ways. A blocking member 4 is provided on the outside of the switch body 1, and a trigger is rotatably provided outside the switch body 1 in a standby position, a temporary compression operating position, a main compression operating position, and a return operating position so that the blocking member 4 can be moved to the four positions. 6 is provided, and springs 8 and 10 are provided in the switch body 1 to normally urge the trigger 6 to be placed in the standby position. It is relatively weak at the temporary compression operation position and relatively strong at the main compression operation position. Trigger rotation resistance with two different strengths 6
The trigger 6 is set to send a standby signal to the hydraulic unit U, a standby signal at the temporary compression operation position, a temporary compression signal at the temporary compression operation position, a main compression signal at the main compression operation position, and a return signal at the return operation position.

(Operation) When the hydraulic compressor of the present invention is used, the finger is hung on the trigger 6 while supporting the compression head H by hand, and the trigger 6 is rotated against a comparatively weak spring force, and the spring is rotated. When the force is brought to the temporary compression operation position before the force suddenly increases, the blocking member 4 rotates together with it and the input side optical fiber cables 2a, 3
It comes to a predetermined position between a and the output side optical fiber cables 2b, 3b, makes a predetermined ON / OFF combination, and transmits a temporary compression operation signal to the hydraulic unit U. After the temporary compression, when the trigger 6 is further rotated against the large rotation resistance of the spring 8, the final compression operation position is reached. This large rotation resistance allows confirmation of the main compression operation. The blocking member 4 rotates together with the trigger 6 to reach a predetermined position different from the previous position, and transmits the main compression operation signal to the hydraulic unit U. After the main compression operation is completed, when the trigger 6 is pivoted in the opposite direction, the return operation position is reached, and the blocking member 4 is also turned to the return operation position and the return operation signal is issued. When the finger is released from the trigger 6, it returns to the standby position by the spring force, and at the same time, the blocking member 4 returns to the standby position and transmits a standby signal to the hydraulic unit U to prepare for the next compression operation. In this case, while operating the trigger 6 with a finger, the head H can be supported by one hand and the work site can be supported by the other hand, and the work can be performed by one person.

(Embodiment) As shown in FIG. 1, a hydraulic compressor according to an embodiment of the present invention includes a hydraulic unit U for delivering an operating hydraulic pressure and a compression head H. The hydraulic unit U includes a pump P, a valve unit V that switches the hydraulic pressure, and a controller C that controls the operation of the valve unit V. The hydraulic unit U and the compression head H are connected by a hydraulic hose 12 and two optical fiber cables 2 and 3. The compression head H includes a compression die D operated by hydraulic pressure, and a switch device S that controls ON / OFF of light of the optical fiber cables 2 and 3.

As shown in FIGS. 2 to 8, the main body 1 of the switch device S fixed to the grip portion of the compression head H is a hollow box type, and has two input side and two output side optical fiber cables. The ends of 2a, 3a, 2b, 3b are introduced. Input side optical fiber cables 2a, 3a and output side optical fiber cables 2b,
The ends of the 3b are oppositely supported in the main body 1 so that light can be conducted to each other via a reflecting mirror (not shown).

The blocking member 4 is fixed to the rotary shaft 5 in the main body 1, and rotates together with the rotary shaft 5 so as to connect the end portions of the optical fiber cables 2a and 3a on the input side and the optical fiber cables 2b and 3b on the output side. Can be moved. The rotating shaft 5 rotatably penetrates the main body 1.

The trigger 6 is fixed to the rotary shaft 5 on the outer side of the main body 1, and has two finger hooks 6a and 6b that extend at an angle in a substantially V shape from the rotary shaft fixing portion, and a finger hook 6a.
And a spring hook piece 6c extending along the side surface of the main body 1 at a predetermined angle with respect to. A spring hooking pin 7 is attached to the inside of the tip of the spring hooking piece 6c.

Then, in the standby position shown in FIG. 5 (A), the trigger 6 connects the blocking member 4 to the input side optical fiber cables 2a and 3a and the output side optical fiber cable as shown in FIG. 5 (B). It is placed in a standby position for blocking light between 2b and 3b, and at the temporary compression operation position shown in FIG. 6 (A), as shown in FIG. It is placed in a temporary compression operation position where light is allowed to pass between the fiber cables 2a and 2b and light is blocked between the other input / output optical fiber cables 3a and 3b, and at the main compression operation position shown in FIG. 7 (A). As shown in FIG. 7 (B), the blocking member 4 is placed in the main compression operation position which allows the conduction of light between the input and output optical fiber cables 2a, 2b, 3a, 3b, and further shown in FIG. 8 (A). In the return operation position shown, as shown in FIG. 8 (B), the blocking member 4 is connected to one of the input / output optical fiber cables. It is arranged to block the light between 2a and 2b and place it in the return operation position that allows the conduction of light between the other input / output optical fiber cables 3a and 3b.

The first spring 8 is wound around one end of the rotary shaft 5, sandwiches a spring hooking pin 7 between both legs, and both ends thereof are locked so as to sandwich both sides of a spring stop pin 9, and the trigger 6 is always held. The trigger 6 is urged to be placed in the standby position, and is given a rotational resistance while the trigger 6 moves from the standby position to the main compression operation position and from the standby position to the return operation position on the opposite side. The second springs 8 and 10 are wound around the spring winding pin 11, one end of which is locked to the end of the rotary shaft 5 and the other end of which is locked to the spring stop pin 9, so that the trigger 6 moves from the temporary compression operation position to the main position. It abuts while reaching the compression operation position, and cooperates with the first spring 8 to suddenly give a large turning resistance.

Next, the operation of this embodiment will be described. When the hydraulic compressor of this embodiment is used, the finger is applied to the trigger 6 while the compression head H is supported, and the trigger 6 is operated. When the trigger 6 is rotated against the spring 8 and brought to the temporary compression operation position where the spring hooking pin 7 contacts the spring 10 as shown in FIG. 6 (A), FIG. 6 (B) As shown in FIG.
Rotates to conduct light only between the one input side optical fiber cable 2a and one output side optical fiber cable 2b, and transmits this to the controller C of the hydraulic unit U as a temporary compression operation signal. In response to this, the controller C appropriately operates the valve unit V to perform the temporary compression operation. After the temporary compression, as shown in FIG. 7 (A), when the trigger 6 is further rotated, a large rotational resistance is applied to the finger by the spring 10 in addition to the spring 8, and the finger is in the main compression operation position. I can confirm. In this state, the blocking member 4 is, as shown in FIG. 7 (B), both input / output optical fiber cables 2a, 2b, 3a, 3b.
In the meantime, when the position where the light is conducted is reached, the main compression operation signal is transmitted to the controller C of the hydraulic unit U, and the compression head H performs the main compression operation. After the main compression operation is completed, as shown in FIG. 8 (A), when the trigger 6 is fully rotated in the opposite direction against the spring 8, the return operation position is reached, and along with this, FIG. 8 (B) As shown in FIG. 3, the blocking member 4 rotates to reach a position where light is conducted only between the other input / output optical fiber cables 3a and 3b, and a return operation signal is sent to the controller C.
The compression head H performs a return operation for returning the ram. When the finger is released from the trigger 6, as shown in FIG. 5 (A), the spring 8 returns to the standby position, and as shown in FIG. , 2b, 3a, 3b is cut off and a standby signal is transmitted to the controller C, and the compression head H prepares for the next compression operation. In this case, it is possible to carry out the work alone while supporting the head H with one hand while operating the trigger 6 with a finger and supporting the construction site with the other hand.

The present invention is not limited to the illustrated embodiment. For example, the spring may be any one as long as it can give different rotational resistances between the temporary compression operation position of the trigger and the main compression operation position. Not limited to

(Effects of the Invention) As described above, in the present invention, the hydraulic unit U for delivering the operating hydraulic pressure and the hydraulic unit U are connected via the hydraulic hose 12 and the optical fiber cables 2 and 3,
A hydraulic compressor is configured by including a compression die D that operates by hydraulic pressure and a compression head H that includes a switch device S that controls ON / OFF of light of the optical fiber cables 2 and 3. The four operations of the compression head H such as stand-by, low-pressure temporary compression, high-pressure main compression, and recovery are controlled by the combination of four types of signals depending on whether the lights 3 and 3 are turned on or off. Two optical fiber cables 2a, 3a, 2b, 3b on the input side and two on the output side are introduced into the switch device S, and their ends are opposed to each other so that light can be conducted respectively. In the switch body 1, the optical fiber cables 2a, 3a, 2b, 3b
In order to change the ON / OFF combination of the light between the end portions of 4 in four ways, the blocking member 4 is provided so as to be movable among the 4 positions of the standby position, the temporary compression operation position, the main compression operation position, and the return operation position, On the outside of the switch main body 1, a trigger 6 is provided rotatably at a standby position, a temporary compression operation position, a main compression operation position and a return operation position so that the blocking member 4 can be moved to the 4 position, and the switch main body is also provided. 1, springs 8 and 10 are provided, and the trigger 6 is normally urged to be placed in the standby position. It is relatively weak at the temporary compression operation position and relatively strong at the main compression operation position. Rotational resistance is given to the trigger 6, and a standby signal is sent to the trigger 6 at the standby position, a temporary compression signal is sent at the temporary compression operation position, a main compression signal is sent at the main compression operation position, and a return signal is sent at the return operation position to the hydraulic unit U, respectively. To do Because it is set, it is not necessary to grasp the air balun in the conventional pneumatic control method, and it is possible to control the head very easily with one hand while supporting the head. It is possible to provide a machine.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is an overall view of a hydraulic compressor, FIG. 2 is a front view of a mounted state of a switch device, FIG. 3 is a sectional view taken along line III-III of FIG. Figure 4 is Figure 5
IV-IV sectional views, FIGS. 5A to 8A show the states corresponding to each other. FIG. 4A is a front view of the switch device, and FIG. It is a front view of the opened state. D ... compression die, H ... compression head, S ... switch device, U ... hydraulic unit, 1 ... switch body, 2,3
...... Input side optical fiber cable, 2a, 3a …… Input side optical fiber cable, 2b, 3b …… Output side optical fiber cable, 4 …… Blocking member, 6 …… Trigger, 8,10 …… Spring,
12 …… Hydraulic hose.

Front page continuation (72) Inventor Ikichi Honma 10-2115 Yamashita, Ryoke, Ageo-shi, Saitama Prefecture Aichi Vehicle Co., Ltd. Ageo Plant (72) Inventor Katsuaki Kurisu 810 Nakatate, Tamabo-cho, Nakakoma-gun, Yamanashi Tetsuki Sanwa Kofu Factory Co., Ltd. (56) Bibliographic references Sho 59-50687 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A hydraulic unit for delivering an operating hydraulic pressure, and a compression die which is connected to the remote hydraulic unit via a hydraulic hose and two optical fiber cables and is operated by hydraulic pressure. And a compression head provided with a switch device for controlling ON / OFF of the compression head, and by combining four types of signals depending on ON / OFF of light of two optical fiber cables, standby of the compression head, low pressure temporary compression, high pressure book A hydraulic compressor for controlling four operations of compression and restoration, wherein the switch device is provided with two optical fiber cables on the input side and two optical fibers on the output side, and the ends of these optical fiber cables are respectively turned on to emit light. There are 4 types of light on / off combinations between the main body fixed to the head of the hydraulic compressor and held in opposition so that they can be conducted, and the ends of these optical fiber cables. A blocking member provided in the main body so as to be movable in four positions of a standby position, a temporary compression operating position, a main compression operating position, and a return operating position so that the blocking member can be moved to the four positions. A trigger rotatably provided on the outside of the main body such as a standby position, a temporary compression operation position, a main compression operation position, and a return operation position. In the main compression operation position, a spring provided in the main body so as to impart a rotational resistance having two different strengths to the trigger is relatively strong in the main compression operation position. A hydraulic compressor, which is set so as to generate a temporary compression signal at an operation position, a main compression signal at a main compression operation position, and a return signal at a return operation position, respectively.