JP2000068024A - Manual-type crimp tool - Google Patents

Abstract

(57) [Abstract] [Problem] It is possible to reduce the labor of the handle operator and flexibly cope with troubles in crimping work.
An inexpensive and simple manual crimping tool is provided. A crimping tool (2) is supported by sliding members (15, 16) and supported at a fulcrum (21).
9 is used to adjust the supporting position of the crimping tool 2. After adjustment,
After inserting a contact into the crimping groove 20a of the crimping blade edge 20 from one surface side of the crimping blade edge 20 and inserting an electric wire from the other surface side, the lever 11 is moved so that the handle 3 is closed in FIG. When operated in the direction of the arrow, the spur gear 1
0 and the arm 14 rotate in the direction of the arrow P in the figure, so that the spur gear 9 and the arm 13 also rotate in the direction of the arrow Q. Then, the sliding members 15.16 of the arms 13 and 14 slide along the directions of the arrow S and the arrow R, respectively, so that the handle 3 is closed. Is crimped.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crimping tool used for crimping a contact to an electric wire to form a lead terminal, and relates to a manual crimping tool capable of reducing labor in the crimping tool.

[0002]

2. Description of the Related Art As a crimping tool for crimping a contact to an electric wire to form a lead terminal and reducing the labor of a person who applies the crimping force, utility model registration No. 3014197 according to the present applicant has been proposed. There are those disclosed in the issue. As shown in FIG. 4A, the power crimping tool 100 applies a force from the outside to the handle 102 of a commercially available crimping tool 101, thereby eliminating the need for the operator of the handle operator. . Specifically, the crimping tool 101 is arranged so that its handle 102 opens and closes in a plane parallel to the horizontal plane of the base 103, and the opening / closing fulcrum 104 of the crimping tool 101 is fixed with a fixing bracket 105. The power of the air cylinder 106 is applied to the handle 102. Therefore, according to the power crimping tool 100, as shown in FIG. 4B, the contact 108 is formed in the crimping groove 107a of the crimping blade 107 on one side of the crimping blade 107 of the crimping tool 101. After inserting the electric wire 109 from the other surface side into the contact 108 loosely inserted into the crimping groove 107a,
When the handle 102 is closed by the air cylinder 106 so as to crimp the wire 1
Since it is crimped to 09, a desired lead terminal can be obtained without requiring the labor of the handle operator. still,
FIG. 4A is a configuration diagram of a conventional power crimping tool 100,
FIG. 2B is an enlarged view of the crimping blade tip 107.

[0003]

However, the above-mentioned power crimping tool is preferable in that it does not require the labor of the handle operator, but it is necessary to provide a power device such as an air cylinder. There is a problem that the entire apparatus becomes large and expensive. In addition, when performing the above-described crimping operation using a power device, it is difficult to operate the power device while correcting the operation after operating the power device, for example, even if the user notices a problem with the displacement of the wire with respect to the contact. Therefore, there is a problem that the work efficiency is consequently reduced as compared with the manual operation. Further, as in the case of this power crimping tool, the direction of inserting the contact or the wire into the crimping groove of the crimping tool is up and down (FIG.
(B arrow direction)), and there is a problem that it is not easy to visually confirm the insertion state particularly when inserting from below.

An object of the present invention is to provide an inexpensive and simple manual crimping tool which can reduce the labor of the handle operator and can flexibly cope with troubles in the crimping operation.

[0005]

In order to solve the above-mentioned problems, a manual crimping tool according to the present invention operates a handle thereof to crimp a contact to an electric wire to form a lead terminal. The crimping tool can reduce the operating force of the handle operator, so that the opening and closing direction of the handle is perpendicular to the horizontal plane and the crimping blade is on the operator side. The crimping tool is supported and, therefore, the work can be performed while visually confirming the insertion state, thereby improving the work efficiency.The handle of the crimping tool supported in this way is operated via a manually operated lever. Such as a gear mechanism that rotates by manually rotating the lever, or a slider mechanism that rotates by manually sliding the lever. It is opened and closed by a link mechanism, cam mechanism, rack mechanism, etc.Therefore, instead of attaching a conventional power device, it is possible to reduce the labor of the handle operator by using only a manual type. Therefore, it is inexpensive and simple. In this case, if the length of the lever and, for example, the reduction ratio of the gear mechanism are appropriately selected, the operating force is of course further reduced. In addition, the manual type can flexibly cope with the above-mentioned troubles, and does not reduce the work efficiency.

In the manual crimping tool according to the present invention, when the driving mechanism is a spur gear train, it is attached to the rotating shafts of two spur gears of the spur gear train, and the rotation thereof is particularly simple. A pair of arms that rotate in conjunction with the axis,
A sliding member is attached to the end of the arm, supports the handle, and slides along the longitudinal direction thereof, and a stopper for fixing a lever to one of the rotating shafts. is there. Thus, when a force is applied to the lever so that the handle of the crimping tool is closed, the spur gear of the spur gear train to which the lever is fixed, and the arm attached to the rotation shaft of the spur gear rotate. As a result, the other spur gears of this train and the arm attached to the rotating shaft of the spur gear also rotate, so that the sliding members of both arms slide along the longitudinal direction of the handle. Then, the handle is closed by this sliding, so that the contact is crimped to the electric wire at the crimping blade. Therefore, labor in such a crimping operation can be reduced. In this case, if the gear ratio of the spur gear train is appropriately selected, it goes without saying that the labor can be further reduced.
Further, it is needless to say that the sliding member may roll along the longitudinal direction of the handle.

[0007] In the manual crimping tool of the present invention,
A crimping blade or its vicinity, for example, supporting the crimping tool at the opening and closing fulcrum of the crimping blade, and provided with an adjusting mechanism for adjusting the supporting position of the crimping tool at this position, cooperates with the sliding member. In addition to stabilizing the crimping tool to support the crimping tool at three points, the crimping blade is advanced and retracted by the adjusting mechanism corresponding to various types of crimping tools, that is, according to the type of the crimping tool. Since the handle and the handle are arranged in the same plane, that is, the opening and closing direction of the handle is arranged perpendicular to the horizontal plane, labor can be reduced regardless of the type of crimping tool.

[0008]

FIG. 1 shows an example of an embodiment of the present invention.
This will be described with reference to FIGS. The manual crimping tool 1 according to the present embodiment supports the crimping tool 2 so that the opening and closing direction of a handle 3 is perpendicular to the base 4, as shown in FIG. 1, and the opening and closing of the handle 3 will be described later. By manually operating the lever 11 having a predetermined length, the labor of the person who has been operating the handle 3 and performing the crimping operation is reduced.

The hand-operated crimping tool 1 is specifically shown in FIG.
As shown in FIGS. 3 and 3, side plates 5 and 6 are provided upright on the base 4, and the rotating shaft 7 is rotatably supported on the side plates 5 and 6 via bearings 5a and 6a. 8 is also rotatably supported via bearings 5b and 6b, and a spur gear (drive mechanism) 9 axially mounted on the rotating shaft 7 is connected to a spur gear (drive mechanism) 10 axially mounted on the rotating shaft 8. The lever 11, which is operated by a crimping operation, is fixed to the rotating shaft 8 with a stopper 12. In the present embodiment, the case of a spur gear train having a pair of spur gears 9 and 10 having the same number of teeth is exemplified. However, a reduction gear ratio is increased by using a plurality of gear trains. Further, labor can be further reduced. In the manual crimping tool 1, the rotating shaft 7
An arm 13 is attached to the end of the arm, and an arm 14 is attached to the rotating shaft 8 so that the arm 13 rotates in conjunction with the rotation of the rotating shafts 7 and 8.
Sliding members 15 and 16 are attached to the ends of the handlebars 3 and 14, respectively. The sliding members 15 and 16 support the handle 3 and extend along the longitudinal direction of the handle 3 along the arms 13 and 14. Slide with each other (see FIG. 1). By the way, the sliding member 1
Each of the cylindrical members 5 and 16 has a cylindrical shape having flanges at both ends, and furthermore, has a concave central portion of the cylinder, whereby the handle 3 can be firmly supported and can slide without falling off the handle 3. .

In the manual crimping tool 1, the side plate 18 is connected to the side plate 17 erected on the base 4 via a connecting member.
Is set up in parallel with the side plate 17, and an adjustment bolt (adjustment mechanism) 19 is disposed above the side plate 18. In this embodiment, the adjusting bolt 19 adds the crimping tool 2 to the sliding members 15 and 16 and in the present embodiment,
It comprises a receiving bolt 19a supporting the fulcrum 21 so as to be supported at the opening / closing fulcrum 21 near 0, and a push bolt 19b for adjusting the supporting position of the crimping tool 2 at the fulcrum 21. . Therefore, by moving the bolt 19b forward and backward, the crimping blade edge 20 is advanced and retracted so that the crimping blade edge 20 and the handle 3 are arranged in the same plane, that is, the opening and closing direction of the handle 3 is shifted to the base 4. Vertically, in other words, the contact (not shown) or the electric wire (not shown) to be inserted into the crimping blade tip 20 can be arranged so as to be parallel to the base 4.
In this case, in addition to the push bolt 19b, the receiving bolt 19a
Can also be adjusted by moving forward and backward (see FIG. 3).
Incidentally, the crimping blade tip 20 is arranged on the side of the operator who operates the lever 11, that is, while operating the lever 11 in the direction of the arrow in FIG.
The work can be performed while visually checking whether or not the wire or the contact is properly inserted into the crimping groove 20a, so that even if the above-described insertion trouble occurs, it is possible to flexibly cope with the trouble and the working efficiency is not reduced.

Next, a crimping operation using the manual crimping tool 1 will be described with reference to the drawings. When performing crimping work of forming a lead terminal by crimping a contact to an electric wire using the manual crimping tool 1, first, the crimping tool 2 is supported by the sliding members 15 and 16, and At 21, the support state of the crimping tool 2 is adjusted using the adjustment bolt 19. After adjustment, crimping blade 2
In addition, a contact is inserted into the crimping groove 20a from one side of the crimping blade tip 20a, and an electric wire is inserted into the contact loosely inserted into the crimping groove 20a from the other side.
Thereafter, when a force is applied to the lever 11 so that the handle 3 is closed, that is, when the lever 11 is operated in the direction of the arrow in FIG. 1, the spur gear 10 and the arm 14 move in the direction of the arrow P in FIG. Accordingly, the spur gear 9 and the arm 13 also rotate in the arrow Q direction in FIG. Then, the sliding members 15.16 of the arms 13 and 14 slide along the arrow S direction and the arrow R direction, respectively. This sliding causes the handle 3 to be closed.
In, the contacts are crimped to the wires. At this time, the lever 11 is continuously operated in the direction of the arrow in FIG. 1 until the ratchet (not shown) provided on the crimping tool 2 is released. After confirming that the ratchet has been released by a clicking sound, the handle 3 is opened and the crimped lead terminal (not shown) is taken out to complete the crimping operation.

[0012]

According to the manual crimping tool of the present invention, the labor of the handle operator can be reduced, and moreover, the trouble in the crimping operation can be flexibly dealt with. In addition, the manual crimping tool is inexpensive and simple.

[Brief description of the drawings]

FIG. 1 is an operation explanatory view of a manual crimping tool according to the present embodiment.

FIG. 2 is a configuration diagram of a manual crimping tool viewed from a direction A in FIG. 1;

FIG. 3 is a configuration diagram of a manual crimping tool viewed from a direction B in FIG. 1;

FIG. 4 is a configuration diagram of a conventional power crimping tool.

[Explanation of symbols]

 Reference Signs List 1 manual crimping tool 2 crimping tool 3 handle 9,10 spur gear (drive mechanism) 11 lever 12 stopper 13,14 arm 15,16 sliding member 19 adjustment bolt (adjustment mechanism) 19a receiving bolt (adjustment bolt) 19b Push bolt (adjustment bolt) 20 Crimping blade 21 Opening and closing fulcrum (near the crimping blade)

Claims (3)

[Claims] 1. A manual crimping tool that can reduce the operating force of the handle operator with respect to a crimping tool that operates the handle to apply the crimping force in order to crimp a contact to an electric wire to form a lead terminal. The crimping tool, wherein the opening and closing direction of the handle is perpendicular to a horizontal plane, and
A manual type wherein the crimping blade tip is supported so as to be on the operator side, and the handle of the supported crimping tool is opened and closed by a drive mechanism operated via a manually operated lever. Crimping tool. 2. When the driving mechanism is a spur gear train,
A pair of arms respectively attached to the rotation shafts of two spur gears of the spur gear train and rotating in conjunction with the rotation shafts, and attached to the ends of the arms to support the handle, and The hand-operated crimping tool according to claim 1, further comprising a sliding member that slides along the longitudinal direction, and a stopper that fixes the lever to one of the rotation shafts. 3. An adjusting mechanism for supporting the crimping tool and adjusting a supporting position of the crimping tool at or near the crimping blade tip.
Or the manual crimping tool according to 2.