JPH0629017U - Contact tip engaging structure - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a contact tip engaging structure that can be easily bent, has a high yield, and can increase the stroke length S of the contact. [Structure] An elongated conductive plate 34 integrally provided on one side of the contact body 32 is bent to form a contact portion 36, and a tip portion of the elongated conductive plate 34 is engaged with a locking portion projecting from the contact body 32. In the contact 30 adapted to fit together, since this engaging portion is formed by the cut-and-raised piece 40 cut and raised from the contact main body 32, complicated bending work as in the conventional example is unnecessary, and in comparison with the conventional example. The yield of material collection can be improved. Furthermore, the elongated conductive plate 3
4 can be formed so that the tip end 38 on the contact portion 36 side penetrates the through hole 42 in which the cut-and-raised piece 40 is formed, so that the movable distance (stroke length) of the contact portion 36 is made larger than before. It will be easier.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention bends an elongated conductive plate integrally connected to one side of the contact body to form a contact portion, and engages the tip of the elongated conductive plate with a locking portion protruding from the contact body. The present invention relates to an improvement in the tip end engaging structure of the contact.

[0002]

[Prior art]

 Conventionally, the tip end engaging structure of this type of contact (for example, socket contact) has been configured as shown in FIGS. 6 and 7. That is, a wide band-shaped contact body 10 and a narrow band-shaped elongated conductive plate 12 which are integrally formed by punching are formed, and the elongated conductive plate 12 is slightly bent about 180 degrees near the boundary with the contact body 10. Then, the elongated conductive plate 12 is bent inward to form the contact portion 14, and further bent inward to make it at a right angle with the plate surface of the contact body 10, and then the tip side is bent outward at a substantially right angle. To form a tip portion 16 parallel to the plate surface of the contact body 10, and the tip portion 16 is projected from both sides of the contact body 10 and engaged with the formed locking pieces 18, 18 to form the contact portion 14. Did not move to the contact target side (upper side in Fig. 7) more than necessary. On the other side of the contact body 10, a connecting portion 20 to a substrate or the like is formed, and in the middle, a locking piece 22 that engages with the engaging portion of the housing is formed by cutting and raising.

[0003]

[Problems to be solved by the device]

 However, in the conventional example shown in FIGS. 6 and 7, the locking pieces 18, 18 for engaging the tip portion 16 are projected outward from both side portions of the contact body 10 as shown by a two-dot chain line in FIG. Since the formed tongue pieces 18m and 18m were formed by bending to the tip portion 16 side, there were problems that the bending process became complicated and the yield of material removal deteriorated. Further, since the tip portion 16 cannot move below the plate surface of the contact body 10 and it is difficult to increase the maximum movable distance L thereof, the movable distance of the contact portion 14 (stroke length). ) There is a problem that it is difficult to increase S.

The present invention has been made in view of the above-described problems, and it is easy to perform bending work, can improve the yield of material removal, and can move the contact portion 12 by a movable distance (stroke length). ) It is an object of the present invention to provide a contact tip engaging structure in which S can be easily increased.

[0005]

[Means for Solving the Problems]

 In the contact tip engaging structure according to the present invention, an elongated conductive plate integrally connected to one side of the contact body is bent to form a contact portion, and the distal end of the elongated conductive plate is projected from the contact body. In the contact adapted to engage with the locking portion, the locking portion is formed by a cut-and-raised piece cut and raised from the contact body.

[0006]

[Action]

 Since the locking part that engages the tip of the elongated conductive plate is formed by the cut-and-raised piece cut and raised from the contact body, it eliminates the need for complicated bending work as in the past, and also reduces the contact body. As compared with the conventional example in which the tongue pieces projecting outward from both sides are bent, the yield of material removal can be improved. Furthermore, since the tip of the elongated conductive plate can be formed so as to penetrate through the through hole in which the cut and raised piece is formed, it is easy to increase the movable distance (stroke length) of the contact portion as compared with the conventional case. Become.

[0007]

【Example】

 FIGS. 1 to 3 show an embodiment of a tip engaging structure of a contact (for example, a socket contact) according to the present invention. In these drawings, the same parts as those in FIGS. 6 and 7 are designated by the same reference numerals. 1 to 3, reference numeral 30 denotes a contact, which is formed by punching a conductive metal plate (for example, a copper alloy plate plated with silver) with a press, bending, and raising. It

That is, first, by punching with a press, a substantially wide strip-shaped contact body 32 and a narrow strip-shaped elongated conductive plate 34 integrally connected to one side of the contact body 32 are formed. Similar to the conventional example, the plate 34 is slightly bent about 180 degrees near the boundary with the contact body 32, then bent inward to form a contact portion 36, and further bent inward. After making a right angle with the plate surface of the contact body 32, the tip side is bent outward at a substantially right angle to form a tip portion 38 parallel to the plate surface of the contact body 32. The tip portion 38 is engaged by a cut-and-raised piece 40 as a locking portion formed by cutting and raising from the plate surface of the contact body 32, and the contact portion 36 does not move to the contact target side (upper side in FIG. 1) more than necessary. I am trying.

Reference numeral 42 denotes a through hole formed by cutting and raising the cut and raised piece 40. On the other side of the contact main body 32, a connecting portion 20 for connecting to a wiring pattern of the board is formed on the other side, and in the middle, an engaging portion for engaging with an engaging portion of the housing. The piece 22 is formed by cutting and raising. As shown in FIG. 3, the plurality of contacts 30 formed as described above are inserted through the terminal insertion holes 52 formed in parallel in the upper and lower two stages on the rear surface side of the connector housing 50 ,. , Are engaged with the engaging holes 54, ... Of the connector housing 50 to prevent them from coming off.

Next, the operation of the above embodiment will be described. Since the engaging portion that engages the tip end portion 38 of the elongated conductive plate 34 on the contact portion 36 side is formed by the cut and raised piece 40 cut and raised from the contact body 32, a complicated bending process like the conventional example is performed. In addition to the above, the yield of the material can be improved as compared with the conventional example in which the tongue pieces projecting outward from both sides of the contact body are bent. Further, since the tip 38 of the elongated conductive plate 34 on the contact portion 36 side can be formed so as to penetrate through the through hole 42 formed when the cut and raised piece 40 is cut and raised, the contact portion 36 can be moved. It becomes easy to make the distance (stroke length) S larger than before.

In the above-mentioned embodiment, the contact body and the elongated conductive plate are formed by the wide-width conductive plate and the narrow-width conductive plate which are integrally formed by punching, and the contact portion side of the elongated conductive plate is formed. The locking part that engages the tip part is formed by the cut and raised piece cut and raised along the longitudinal direction of the contact body, but the present invention is not limited to this, and it is cut and raised from the contact body. What is formed is a cut and raised piece. For example, as shown in FIGS. 4 and 5, a locking portion that engages the tip end portion 38 of the elongated conductive plate 34 on the contact portion 36 side by a cut and raised piece 40a cut and raised along the lateral direction of the contact body 32a. May be formed.

In the above-described embodiment, as in the conventional example, the elongated conductive plate 34 is slightly bent about 180 degrees near the boundary with the contact body 32, and then bent inward to form a contact portion. The contact was bent toward the plate surface of the contact body at a right angle, and then the tip side was bent outward at a substantially right angle to form a tip parallel to the plate surface of the contact body. However, the present invention is not limited to this.The elongated conductive plate integrally connected to one side of the contact body is bent to form the contact portion, and the tip of this elongated conductive plate is engaged with the locking portion protruding from the contact body. It can be used for contacts in general.

[0013]

[Effect of device]

 As described above, the contact tip engaging structure according to the present invention bends the elongated conductive plate integrally provided on one side of the contact body to form the contact portion, and the distal end of the elongated conductive plate is In a contact adapted to engage with a locking portion protruding from the contact body, since the locking portion is formed by a cut-and-raised piece cut and raised from the contact body, complicated bending as in the conventional example In addition to eliminating the need for processing, the yield of material removal can be improved as compared with the conventional example in which the tongue pieces protruding outward from both sides of the contact body are bent. Further, since the tip of the elongated conductive plate on the contact side can be formed so as to penetrate through the through hole formed with the cut and raised piece, the movable distance (stroke length) of the contact can be made larger than before. It will be easier.

[Brief description of drawings]

1 is a cross-sectional view taken along the line AA of FIG. 2 showing an embodiment of a contact tip engaging structure according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a cross-sectional view showing a state in which a plurality of contacts of FIGS. 1 and 2 are mounted in a connector housing.

FIG. 4 is a plan view showing another embodiment.

5 is a sectional view taken along line BB of FIG.

FIG. 6 is a plan view showing a conventional example.

FIG. 7 is a front view showing a conventional example.

[Explanation of symbols]

20 ... Connection part, 22 ... Locking piece, 30 ... Contact,
32, 32a ... Contact body, 34 ... Elongated conductive plate, 36 ... Contact part, 38 ... Tip part, 40, 40a
... Cut-and-raised piece (locking portion), 42 ... Through hole, 50 ... Connector housing, S ... Movable range of contact portion (stroke length).

Claims (2)

[Scope of utility model registration request] 1. A contact portion is formed by bending an elongated conductive plate integrally connected to one side of a contact body, and a tip portion of the elongated conductive plate is engaged with a locking portion protruding from the contact body. In the contact as described above, the engaging portion of the contact is formed by a cut-and-raised piece cut and raised from the contact body. 2. The contact body and the elongated conductive plate are composed of a wide strip-shaped conductive plate and a narrow strip-shaped conductive plate, which are integrally formed by punching. 2. The contact tip engaging structure according to claim 1, wherein the portion is formed by a cut and raised piece cut and raised along a longitudinal direction of the contact body.