JPH0425785Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) This invention is based on the invention that when a terminal is inserted into the insertion hole of the terminal receiver, a protrusion formed by cutting and raising the terminal becomes the terminal. The present invention relates to a terminal mounting device in which the terminal is retained in the terminal receiver by being engaged with the engagement stepped portion of the receiver.

(Prior art) For example, in a door switch device for a vehicle,
Conventionally, as shown in FIG. 5, a terminal 3 is inserted into an insertion hole 2 provided at the tip of a movable rod 1. In this case, a protrusion 4 is provided on the terminal 3 by cutting and bending, and the tip of the protrusion 4 is engaged with an engagement step 5 provided on the movable rod 1 to prevent it from coming off. Terminal 3 is attached to movable rod 1.

(Problem to be solved by the invention) However, in the conventional device described above, the protrusion 4 formed by cutting and bending the terminal 3 has a sag A at the tip, and as the thickness of the terminal 3 increases, There are circumstances that cause the droop A to become large. Because of this sag A, the tip of the protrusion 4 has a sharp shape B at the end opposite to the cutting direction, but other than this, the tip edge of the protrusion 4 is sloped. , since the inclined portion engages with the engagement step 5, when a tensile force is applied to the terminal 3 in the direction of arrow Y, the protrusion 4 easily comes off the engagement step 5 and comes out of the insertion hole 2. There are drawbacks. On the other hand, if an attempt is made to engage the portion of shape B with the engagement step 5, the amount of lateral protrusion of the protrusion 4 increases, so when the terminal 3 is inserted into the insertion hole 2, the movable rod 1 This causes excessive deformation force to be applied to the movable rod 1, making it easy to damage the movable rod 1, and
As the plate thickness of the terminal 3 becomes thicker, the spring back becomes larger. Therefore, in order to increase the amount of lateral protrusion of the protrusion 4, it is necessary to increase the length of the protrusion 4. There is also the problem that the length of 3 becomes large and the entire switch becomes large.

Therefore, an object of the present invention is to prevent the protrusion from sagging at the tip of the protrusion when the terminal is inserted into the insertion hole of the terminal receiver. The terminal can be reliably engaged, the terminal will not come off from the insertion hole of the terminal receiver, and
It is an object of the present invention to provide a terminal mounting device in which there is no need to increase the amount of lateral protrusion of the protrusion, and there is no risk that the terminal receiver will be damaged or the entire terminal will become larger.

[Structure of the device] (Means for solving the problem) The present invention provides a terminal receiver in which an engagement step is formed in the insertion hole, and a terminal that is fitted into the insertion hole of the terminal receiver. The terminal is provided with a protrusion formed by cutting and bending, the tip of which is engaged with the engagement step when the terminal is fitted into the insertion hole of the terminal receiver; A surface pressing portion is formed at the tip on the opposite side to the cutting direction, and the surface pressing portion makes the tip of the protrusion taper to ensure engagement with the engagement step portion. It is something.

(Function) According to the above means, even if the thickness of the terminal increases, the tip of the protrusion is tapered and does not sag, so even if the amount of lateral protrusion of the protrusion is the same as that of the conventional one, the protrusion will not sag. The tip of the part reliably engages with the engagement step provided on the terminal receiver, and when a tensile force is applied to the terminal, the protrusion does not slide against the engagement step, but rather bites into it. Therefore, the terminal will not fall out of the insertion hole, and the terminal can be reliably attached to the terminal receiver.

(Example) The following is an example of the present invention in Figures 1 to 3.
This will be explained with reference to the figures. Reference numeral 11 denotes a frame manufactured by punching and bending a metal plate by press working, and a support portion 13 bent at a substantially right angle is formed at one end of a base portion 12 of this frame. 1
A receiving portion 14 is formed at the tip of 3 at a substantially right angle. A movable rod 17, which is a plastic terminal receiver, is inserted into support holes 15 and 16 provided in the receiving portion 14 and the base portion 12 so as to be slidable in the axial direction. The tip of this movable rod 17 projects outward from the base 12 by a predetermined length, and when the door (not shown) is closed,
It is pushed in the direction. The end of the movable rod 17 on the side of the receiving part 14 has an insertion hole 18 and a horizontal hole 1 that intersects the insertion hole 18 at right angles.
9 are respectively formed, and the side surface of the horizontal hole 19 on the distal end side of the movable rod 17 serves as an engaging stepped portion 20. Reference numeral 21 denotes a terminal formed by punching a metal plate, which has a plug portion 21a formed at one end for connecting a connector (not shown) and an insertion portion 21b inserted into the insertion hole 18 at the other end. ing. 22 is a protrusion formed by cutting and raising the insertion part 21b of the terminal 21;
A surface pressing portion 22a is formed at the tip opposite to the cutting direction so that the protrusion 22 becomes tapered toward the tip. Then, this terminal 21 inserts the insertion portion 21b into the insertion hole 18.
By inserting it into the movable rod 17 and engaging the tip of the protrusion 22 with the engagement step 20, it is fixedly attached to the movable rod 17. By the way, protrusion 2
2 has a tapered tip due to the presence of the surface pressing portion 22a, so the angular portion on the tip side of the surface pressing portion 22a directly engages with the engagement step portion 20.
Incidentally, the surface pressing portion 22a is formed by pressing the plate material in advance before cutting and processing the projection portion 22. On the other hand, a coil spring 23 wound around the outer periphery of the movable rod 17 biases the movable rod 17 in the opposite direction of arrow A. Reference numeral 24 denotes a bag-shaped elastic cover made of rubber, for example, and has a shape that covers the tip of the movable rod 17 and the surface of the base part 12, and the open end of this cover wraps around the back surface of the base part 2. A seal rib 25 having a triangular cross section is protruded from the open end.
Reference numeral 26 denotes a mounting screw insertion hole provided in the center of the base portion 12.

According to the above-mentioned embodiment, the surface pressing part 22a is formed at the tip of the protrusion 22 on the opposite side to the cutting direction, and has a shape that becomes tapered as the protrusion 22 goes toward the tip. Terminal 21
Since the tip of the protrusion 22 does not sag even if the thickness of the plate increases, even if the amount of lateral protrusion of the protrusion 22 is the same as that of the conventional one, the tip of the protrusion 22, that is, the surface pressing portion 22a Since the angular part at the tip of the terminal is engaged with the engagement step 20 provided on the movable rod 17 as a terminal receiver, when a tensile force is applied to the terminal 21, the protrusion 22 moves into the engagement step. 20
Rather than slipping, it acts as if it bites, and therefore,
The terminal 21 does not come off from the insertion hole 18, and the terminal 21 is securely attached to the movable rod 17. In addition, the protrusion 22
Since the amount of lateral protrusion of the protrusion 22 may be the same as that of the conventional one, when the terminal 21 is inserted into the insertion hole 18, the movable rod 17 will not be damaged due to excessive deformation force. There is no need to increase the length of the switch, so there is no need for the switch to become large.

In addition, as shown in FIG. 4, a surface pressing part 22 is provided at the tip of the protruding part 22, which is parallel to other parts and has a thin wall.
Even if the tip of the protrusion 22 is tapered by providing the protrusion 22, the same effect as in the above-described embodiment can be obtained.

In addition, although the above embodiment has been explained as being applied to a door switch, it can also be applied, for example, when connecting a terminal to a housing of a connector.
It can be implemented with various modifications.

[Effects of the invention] As is clear from the above description, the present invention provides a terminal receiver in which an engagement step is formed in the insertion hole, a terminal that is fitted into the insertion hole of the terminal receiver, This terminal is provided with a protrusion formed by cutting and bending, the tip of which is engaged with the engagement step when the terminal is fitted into the insertion hole of the terminal receiver, and the protrusion is cut. The terminal is characterized by having a surface pressing part formed at the tip on the opposite side to the raising direction so that the protrusion becomes tapered, so that when the terminal is inserted into the insertion hole of the terminal receiver, the protrusion The terminal can be reliably engaged with the engagement stepped part of the terminal receiver, and the terminal will not come off from the insertion hole of the terminal receiver, so that the terminal can be securely attached to the terminal receiver. In addition, since there is no need to increase the amount of lateral protrusion of the protrusion, there is no risk that the terminal receiver will be damaged or the terminal receiver will become larger.

[Brief explanation of the drawing]

Figures 1 to 3 show an embodiment of the present invention; Figure 1 is a vertical sectional view of the main part, Figure 2 is a vertical front view, Figure 3 is a side view, and Figure 4 is a main part. FIG. 5 is a longitudinal cross-sectional view of the main parts showing another embodiment of the invention, and FIG. 5 is a cross-sectional view of the main parts showing the conventional configuration. In the drawing, 11 is a frame body, 12 is a base part, 17 is a movable rod (terminal receiver), 18 is an insertion hole,
19 is a horizontal hole, 20 is an engagement step, 21 is a terminal, 22 is a protrusion, 22 is a protrusion, 22a and 2
2b is a surface pressing part.

Claims (1)

[Scope of utility model registration request] A terminal receiver having an engagement step formed in the insertion hole, a terminal to be fitted into the insertion hole of the terminal receiver, and a terminal formed by cutting and bending the terminal into the terminal receiver. A protrusion whose tip is engaged with the engagement step when it is fitted into the insertion hole, and the protrusion is formed to be tapered at the tip on the opposite side to the cutting direction of the protrusion. A terminal mounting device comprising a pressed surface part.