JPH047591Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to the improvement of a crimping tool with a built-in hydraulic mechanism that crimps terminals, etc. by manually rotating the handle. It is used in the industrial field of manufacturing and sales.

(Prior art) Hydraulic crimping tools for terminals, etc. have the function of moving a male die toward the female die side by operating a hydraulic mechanism built into the tool body, and crimping terminals, etc. between both dies using strong hydraulic pressure. have Because it has a built-in hydraulic mechanism, it is quite large and heavy even if it is a manual type, so when crimping work, it is necessary to firmly hold the fixed handle with one hand. It is necessary to operate the movable handle with the other hand.

(Problems to be Solved by the Invention) However, in the case of the conventional hydraulic crimping tool as described above, there were the following disadvantages and technical problems. In other words, when checking whether the terminal is correctly set between the male and female dies, it is necessary to bring the eyes close to the dies, but since both hands are tied to gripping the handle, There is a problem in that it is difficult to reliably check the set state of the terminal by getting close enough to it, and in order to prevent the terminal from coming off the die, it is necessary to hold the object to be crimped, such as the terminal, with one hand while holding the other hand. If an attempt is made to operate the handle by hand, it becomes insufficient or impossible to hold the fixed handle by hand, so the fixed handle must be fixed and crimped using the knee or the like. As a result, the crimping posture becomes unstable, making the work difficult, which not only reduces work efficiency but also makes it difficult to perform the crimping work reliably.

The present invention was developed to solve this problem, and its purpose is to eliminate the need to hold the fixed handle firmly with your knee, etc., and to enable the handle to be operated with one hand. Therefore, it is an object of the present invention to provide a manual hydraulic crimping tool which allows the user to securely apply an object to be crimped, such as a terminal, between both dies with the other hand and perform a necessary crimping operation smoothly and easily.

(Means for Solving the Problems) The present invention was developed to solve the above problems, and is a manual hydraulic crimping tool in which a movable handle is pivotally connected to a crimping tool body having a fixed handle. This invention relates to a manual hydraulic crimping tool in which a finger hook is attached to a movable handle, and the finger hook of the finger hook projects beyond the crimping tool body.

(Function) According to the configuration of the present invention, the thumb of one hand, for example, the right hand, is hung on the finger rest, the other four fingers are rotated around the tool body, and the movable handle is gripped by the tool body with the thumb. If you pull it close, you can perform crimping with one hand.

Therefore, the object to be crimped, such as a terminal, can be accurately applied to the die portion with the other hand.

(Embodiment) Hereinafter, an embodiment of the present invention will be described with reference to a manual hydraulic terminal crimping tool shown in the drawings. This crimping tool is roughly composed of a tool body 1, a fixed handle 2 integrally formed with the tool body 1, and a movable handle 3 pivotally attached to the tool body 1. A die 4 having a male die 4a and a head 4b which also serves as a female die is provided in the head portion of the tool body 1, and a hydraulic mechanism (described later) for operating the male die 4a of the die 4 is provided inside the body. Built-in. Reference numeral 5 denotes a finger rest, which is composed of a finger rest 6 and an attachment part 7. The finger hook 5 is attached to a slightly forward portion of the movable handle 3 from the middle portion, and a hook-shaped finger hook portion 6 of the finger hook 5 projects toward the side of the tool body 1.

Therefore, as shown by the two-dot chain line in Figure 1,
Hang your thumb F ₁ on the finger hook 6, turn the remaining four fingers F ₂ around the tool body 1 side, grip it with one hand, and pull your thumb F ₁ to the side of the tool body 1.
Since the movable handle 3 can be rotated toward the tool body 1, the terminal L can be positioned between the male die 4a and the female die 4b with the other hand, and crimping work can be reliably performed with one hand. Note that this work may be performed with the tool body 1 placed on the ground.

The attachment part 7 of the finger hook 5 is formed into a cylindrical shape and is fitted into the movable handle 3, so that the finger hook 5 can be moved back and forth along the movable handle 3 depending on the size of the worker's hand, for example. It is convenient to be able to configure and adjust its position. in this case,
After the position is determined, the finger hanger 5 may be fixed using an appropriate fixing means (not shown). As the fixing means, for example, a fixing screw is screwed into the mounting part 7, and the tip of the fixing screw is Various methods can be considered, such as pressing and fixing the movable handle 3 to the outer periphery of the movable handle 3, but this fixing means is not an essential requirement of the present invention.
This is not necessary if the finger hook 5 is tightly fitted into the movable handle 3. Further, if the attachment part 7 is made rotatable along the outer periphery of the movable handle 3, the thumb _F1 can be hung on the finger rest part 6 in a more tightly fitted state. Furthermore, the finger hook 5 may be detachably attached to the movable handle 3. In this case, for example, the cylindrical attachment part 7 is made of an elastic member, and a cutout part is provided in the axial direction. Various types are conceivable, such as a structure in which the split portion is expanded and fitted onto the movable handle 3. Note that the finger hook 5 may be fixed to the movable handle 3, and in the figure, 8 indicates a pivot pin.

FIG. 2 shows an embodiment of the finger hook 5, in which the finger hook 6 is constructed of a ring-shaped member, and the thumb is passed through the ring hole.

Although not shown, the hydraulic mechanism installed in the main body is a known one, and is composed of an oil tank, a piston that pushes the die 4, a plunger 9 that pumps oil, and the like. Plunger 9
is engaged with a movable handle 3, and when the movable handle 3 is repeatedly rotated toward the tool body 1, the oil in the oil tank is successively pumped into the piston cylinder by the reciprocating motion of the plunger 9, and this hydraulic pressure is The piston is driven toward the head side of the tool body 1. As a result, the male die 4a attached to the tip of the piston moves toward the female die head 4b as shown by the two-dot chain line, and the terminal L is crimped. In addition, when returning the male die 4a, manually open a return valve (not shown) and return the oil in the piston cylinder to the tank using a returning spring (not shown) while returning the piston. It is configured to be pushed to the position of .

In FIG. 1, the movable handle 3 shown by a solid line shows a state after being rotated toward the tool body 1, and the movable handle 3 shown by a two-dot chain line shows a returned state.

(Effects) As described above, in the present invention, a finger hook is attached to the movable handle, and the finger hook of this finger hook is made to protrude beyond the crimping tool body. By rotating the tool body and gripping the tool body, and pulling the movable handle towards the tool body with your thumb, you can perform crimping operations with one hand. Therefore, you can use the other hand to hold the object to be crimped, such as a terminal. It is possible to press the die part while holding it while accurately applying it to the die part. Therefore, when operating this type of crimping tool, which is heavy, there is no need to secure the fixed handle side with your knee etc. as in the conventional case, and the main body and fixed handle can be placed in a stable posture, for example, on a workbench. Moreover, the desired crimping work can be carried out reliably and easily.

In addition, since it is easy to visually check the object to be crimped inserted between both dies, it is possible to always carry out reliable crimping work while checking whether the object to be crimped is inserted correctly between both dies. .

[Brief explanation of the drawing]

The attached drawings show embodiments of the present invention, and the first
The figure is a front view of a manual hydraulic crimping tool having a finger hook, and FIG. 2 is a front view showing another embodiment of the finger hook. Explanation of symbols, 1... Tool body, 2... Fixed handle, 3... Movable handle, 5... Finger hook, 6
...Finger rest.

Claims (1)

[Scope of utility model registration request] A manual hydraulic crimping tool in which a movable handle is pivotally connected to a crimping tool body having a fixed handle, in which a finger hook is attached to the movable handle and the finger hook of the finger hook projects beyond the crimping tool body. Type crimping tool.