JPS61290678A - Manual connection tool - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Object of the invention (industrial application field) The present invention relates to a manual wiring tool for connectors or wire connection terminals, and particularly has a mechanism for stripping the outer sheath of wires. This relates to manual wiring tools.

(Prior Art) Conventionally, this type of manual wiring tool is mainly composed of a fixed grip 1, a movable grip 2, a pressure regulating device 3, and a wiring head 4, as shown in FIG. l
The movable grip 2 and the movable grip 2 are a pair of grips, which are connected by a pressure regulating device 3 and pivotally supported by a pin la, so that they can be freely opened from each other. A wire connection head 4 including a connector pedestal 5 and a movable head 6 is constructed in front (on the left side) of the fixed grip 1.

A connector pedestal 5 is fixed to the wiring head 4 with screws 4a, and a connector, that is, a modular connector plug (not shown) is inserted into the connector pedestal 5 to connect the ends of electric wires by pressure contact. A connector insertion hole 5a is opened.

A movable head 6 is provided at the rear (right side) of the connector holder 5 and is connected to the movable grip 2 and moves left and right with the movement of the movable grip 2. At the tip of the movable head 6, there is a connector holder. A press-fitting part 6a is provided for press-fitting the wire fixing part and the terminal of the modular connector plug inserted into the connector plug.

Wires are connected to the modular connector plug using a wiring tool configured as described above.

In this case, the following steps will be taken:

■ First, use a special wire sheath stripping tool to strip the outer sheath at the end of the wire to a specified length (.

(2) Next, the modular connector plug is inserted in a predetermined direction into the plug insertion hole 5a of the connector holder 5 of the aforementioned hand tool.

■ Next, the wires stripped in ■ are modularized.
Insert into the wire insertion opening of the connector.

(2) Next, when the fixed grip 1 and the movable grip 2 of the manual tool are firmly grasped by hand, the movable grip 2 approaches the fixed grip 1, and the movable head 6 moves forward in conjunction with the movement of the movable grip 2. . Then, the press-fitting part 6a provided at the tip of the movable head 6 finally comes into pressure contact with the wire fixing part and the terminal of the modular connector plug, and the wire is fixed to the plug and the terminal and the core wire of the wire are connected. electrically connected.

■ When the modular connector plug and wire are firmly attached,
When the latch of the pressure regulating device 3 is released and the grip force on the movable grip 2 is removed, the grip 2 is returned to its original position, and the movable head 6 is also moved back and returned to its original position, and the connected moji error connector is removed. It is completed by being removed from the connector insertion hole.

Although the above example has been explained using a modular connector, these connection tools are not limited to that (the configurations of connection tools for general connectors and connection tools for various types of contacts are similar).

(Problems to be Solved by the Invention) With the conventional manual wiring tool as described above, the outer sheath of the wire must first be stripped using a separate wire sheath stripping tool, which requires a lot of effort when connecting connectors and contacts. As a result, wiring has become expensive. In recent years, there has been a need for tools that are convenient to carry, especially when performing wiring work outdoors, but with conventional tools, it is cumbersome to carry the wiring tool and the wire sheath stripping tool separately. .

An object of the present invention is to provide a wire connection tool equipped with a wire stripping mechanism that can solve these conventional problems.

(2) Structure of the Invention (Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention has a fixed grip that can be opened freely and a movable grip, and the front position of the fixed grip is The manual wiring tool is provided with a wiring head that incorporates a connector holder for receiving a connector or a contact, and a movable head that moves to caulk and connect the connector or contact and an electric wire, wherein the fixed grip has a wire holding member having a wire insertion hole on its upper side, and at a lower position of the wire holding member, the wire connection head has a fixed blade having a blade surface that cuts into half the circumference of the outer sheath of the wire. , and each of the movable heads is provided with a movable blade that is paired with the fixed blade and has a mating blade surface that cuts into half the circumference of the remaining outer skin of the electric wire.

(Function) In the present invention configured as described above, the outer sheath of the electric wire is stripped in the following manner using the tool of the present invention prior to the wire connection work.

First, the electric wire is inserted into the insertion hole of the electric wire holding member.

Next, when the fixed grip and the movable grip are grasped in this state, the movable blade provided on the movable head approaches the fixed blade, and the blade surfaces of the double blades bite into the outer sheath of the electric wire.

If the electric wire is pulled upward while maintaining this state, the outer sheath will come off from the electric wire.

The wire thus stripped and the connector are connected using the above-mentioned tool.

(Embodiments) Next, the present invention will be described in more detail with regard to embodiments of the present invention based on FIGS. 1 to 4 of the accompanying drawings.

FIG. 1 is an exploded perspective view of the main parts of a manual wiring tool as an embodiment of the present invention viewed from the plane side, and FIG.
The cross-sectional view taken along line A-A in the figure shows the state before stripping with electric wires inserted.1. Figure 3 is similar to Figure 1A-
Although it is a sectional view along line A, it shows a state in which the electric wire is stripped.

As shown in these figures, the manual wiring tool of this embodiment is provided with a rectangular holding member insertion opening 13 in the front (left side) of the upper surface 10 of the fixed grip 1. Oval-shaped wire confirmation holes 1)a and 12a, which will be described later, are formed on the right side surface 12 and the right side surface 12, respectively. At the front (left side) inside the holding member insertion opening 13,
A blade holder 41 is provided integrally with the wire connection head 4 and at the rear of the wire connection head to receive a fixed blade 42 fixed thereto with screws 43.

A blade surface 42° for stripping the outer sheath of the electric wire is provided at the tip or right side of the fixed blade body 42. A semicircular concave blade surface 42'' is formed on the blade surface 42'' at a position corresponding to a circular wire insertion hole 72 provided in a wire holding member 70, which will be described later. At the end (right side), there is provided a blade holder 61 that receives a movable blade 62 fixed with screws 63 on the same level as the blade holder 41 described above.The movable blade 'h62 There is a blade surface 6 on the tip or left side for stripping the outer sheath of the electric wire.
2° is provided. Further, a semicircular concave cutting surface 62'' is formed on the cutting surface 62' at a position corresponding to the semicircular cutting surface 42'' provided on the cutting surface 42' of the fixed blade body 42 described above. The blade holder 61 moves back and forth (left and right) together with the movable head 6 by the gripping action of the movable grip 2. A wire receiving surface 64 for receiving the tip of the electric wire 80 is provided on a surface in front of the blade holder 61 and one step lower than the blade holder 61.

An electric wire holding member 70 is provided above the holding member insertion opening 13. A square electric wire insertion hole 71 that is angular and penetrating and a circular electric wire insertion hole 72 that is circular and penetrating are formed in parallel approximately in the center of the electric wire holding member 70, and furthermore, the wire holding member 70 has a rectangular electric wire insertion hole 71 that has a penetrating shape and a circular electric wire insertion hole 72 that has a penetrating shape. Screw holes 73 are opened at two locations for fixing with set screws 75 into the screw holes 14 in the upper surface 10 of the fixed grip 1. Further, on the lower surface of the wire holding member 70, an extension portion 74 extending downward from the wire insertion holes 71, 72 is provided to more securely hold the wire 80.

Next, a procedure for stripping the outer sheath of an electric wire using the manual wiring tool of this embodiment will be explained.

■ First, check whether the cross section of the wire is square or circular. If it is square, insert the tip of the wire into the square wire insertion hole 71 of the wire holding member 70. Insert the circular wire into the circular wire insertion hole 72. In this case, visually check whether the tip of the wire is securely in contact with the wire receiving surface 64. Wire confirmation hole 1) a on the left side surface 1) of the grip 1 or wire confirmation hole 1 on the right side surface 1)
This can be confirmed from 2a. (See Figure 2) ■ Next, when the fixed grip l and the movable grip 2 are firmly grasped by hand, the movable head 6 linked to the movable grip 2 moves forward (to the left) and the movable blade body 62 moves forward (to the left). Blade surface 62゛
The blade surface 42'' of the fixed blade 42, which is paired with the movable blade 62 on the same level, similarly bites into the outer skin of the wire on the opposite side (see Fig. 3). By pulling the upper wire 80 upward in this state, the outer sheath of the wire will be stripped.

The structure and method for connecting the stripped end of the wire to the connector or contact is exactly the same as the conventional method described above, so detailed explanation will be omitted.

FIG. 4 shows another embodiment in which three types of circular electric wires having different thicknesses can be stripped using one type of tool. That is, the wire holding member 70A has a wire insertion hole 71A so that wires of different thicknesses can be inserted into the wire holding member 70A.
It penetrates through large, medium, and small. The fixed blade body 42A and the movable blade body 62A are provided with large, medium, and small semicircular concave blade surfaces 42゛^ and 62°^ at positions corresponding to the wire insertion hole 71^, respectively. There is.

With the structure of the wire sheath strip configured in this way, it is possible to handle strips of wires of different thicknesses with one tool.

Although the above examples were applied to circular electric wires, the present invention is not limited to the above examples, but can also be applied to square electric wires, flat cables, etc. by combining the wire holding member and the blade. It is something that

(3) Effects of the Invention As described above, according to the structure of the manual wiring tool having the wire sheath stripping mechanism of the present invention, it is possible to strip the wire sheath without the need for a special dedicated stripping tool. Since the outer sheath can be stripped and wires can be connected to the connector or contact, the wiring work is extremely simple and the cost of wiring can be reduced. Furthermore, when performing wire connection work outdoors, the wire sheath strip and wire connection can be performed with the same tool, making it a very convenient tool to carry.

Furthermore, according to the manual wiring tool of the present invention, the wire holding member and the blade body can be easily installed and removed using the tool using set screws and screws, so it is possible to strip the outer sheath of various types of wires by selecting them. This makes it an even more convenient manual wiring tool.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of the main parts of a manual wiring tool as an embodiment of the present invention viewed from the plane side, and FIG. 2 is a sectional view taken along line A-A in FIG. Figure 3 is a cross-sectional view taken along the line A-A in Figure 1, showing the state before the wire stripping knob, Figure 4 shows a manual wiring tool as another embodiment of the present invention. FIG. 5 is an exploded perspective view of the main parts seen from the plane side, and is a front view of a conventional manual wiring tool. 1...Fixed grip 2...Movable grip 4...Wiring head 5...Connector holder Base 6...Movable head 10...Upper side 41...Blade holder 42...Fixed Blade body 61...Blade holder 62...Movable blade body 70...Wire holding members 71, 72... ...Wire insertion hole 80...
...Wire patent applicant Hirose Electric Co., Ltd. Nippon Telegraph and Telephone Corporation

Claims (4)

[Claims] (1) It has a fixed grip that can be opened freely and a movable grip, and in the front position of the fixed grip there is a connector cradle for receiving a connector or a contact, and a movable grip for crimping and connecting the connector or contact and an electric wire. In the manual wiring tool, the fixed grip has a wire holding member having a wire insertion hole on its upper surface, and the wire holding member is positioned below the wire holding member. The connection head has a fixed blade having a blade surface that cuts into half the circumference of the outer sheath of the wire, and the movable head has a mating blade that pairs with the fixed blade and cuts into the remaining half of the outer sheath of the wire. A manual wiring tool characterized in that each movable blade body has a surface. (2) The wire holding member is constructed separately from the fixed grip, is fixed to the upper surface of the fixed grip with a set screw, and can be freely attached to and removed from the upper surface. A manual wiring tool according to claim (1). (3) The fixed blade is constructed separately from the wiring head and is removably attached to the blade holder of the wiring head with screws, and the movable blade is constructed separately from the movable head. A manual wiring tool according to claims (1) and (2), characterized in that the manual wiring tool is constructed of a blade holder of the movable head and is removably attached to the blade holder of the movable head with a screw. (4) One of claims (1) to (3), characterized in that the wire insertion hole of the wire holding member has a plurality of wire insertion holes with different shapes. Manual wiring tool described in .