JP2002319466A - Glow starter socket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform electric connection and omission prevention certainly in a glow starter socket by enabling to visually check the inserted state of an electric wire at a quick terminal part. SOLUTION: The quick terminal part 8 is arranged at a position, near a large diameter part 23a, and through a cap-pin inserting hole 23 the quick terminal part 8 can be visually checked. Thereby, it can be checked that the electric wire 9 is certainly inserted to the quick terminal part 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glow starter socket having a quick-connecting terminal which can be connected to a terminal by one-touch operation when an electric wire is inserted, and to which a hook-type swan-type glow starter can be mounted.

[0002]

2. Description of the Related Art Conventionally, a glow starter socket of this type has been disclosed in Japanese Utility Model Laid-Open Publication No.
A configuration shown in, for example, Japanese Patent No. -62391 is known. A conventional socket of this type is shown in FIGS. The socket 101 has a socket body 104 made of a resin material or the like.
And an upper surface cover 102 thereof and a conductive plate 106 constituting a terminal portion housed in the socket body 104.
7 is formed, and a pair of base pin insertion holes 123 (formed of a large diameter part and a small diameter part) into which the base pins 125 of the hooked swan-type glow starter 120 are inserted are formed in the top cover 102 in a substantially arc-shaped center point symmetry. Is formed. The terminal portion of the conductive plate 106 is a linear plate-shaped base pin holding portion 107.
And a quick-connecting terminal portion 108 including a conductive portion 108a and a locking spring portion 108b for quickly connecting the electric wire 109. The socket body 104 is provided with a stopper rib 111 for stopping the end of the core wire 110 of the electric wire 109 inserted through the electric wire insertion hole 117.

The electric wire 109 inserted in the electric wire insertion hole 117
Core portion 110 constitutes quick-connecting terminal portion 108
8a and the locking spring portion 108b, it is electrically connected with one touch and is prevented from coming off. Thereafter, the base pin 125 is inserted from the large-diameter portion 123a of the base pin insertion hole 123 of the top cover 102, as shown in FIG. It comes into contact with the portion 107 and is prevented from falling off at the position of the small diameter portion 123b of the base pin insertion hole 123 by its spring property. The hanging swan-type glow starter socket having such a quick connection terminal portion 108 can connect the electric wire 109 and the glow starter 120 with one touch.

[0004]

However, in the conventional configuration as described above, it was not possible for an operator to visually check whether or not the electric wire 109 was securely connected by the quick connection terminal portion 108. The causes are (1) the large diameter portion 123a of the base pin insertion hole 123 and the quick connection terminal portion 10;
8 is far away. The visibility from the small diameter portion 123b is not sufficient because the hole is small, and the visibility is poor. (2) The position where the electric wire is sandwiched by the conductive portion 108a and the locking spring portion 108b is located on the back side from the base pin insertion hole 123,
The direction of the quick connection terminal portion 108 is bad. (3) The base pin insertion hole 123 and the quick connection terminal portion 108 are blocked by a stopper rib 111 formed on the socket body 104.

In addition, since the base pin holding portion 107 has a linear flat plate shape, the distance between the base portion of the base pin and the fulcrum becomes long, the holding force is small, and the holding portion may be fixed at an incomplete position. Since the feeling mainly depends on the shape of the base pin insertion hole 123, a sufficient one cannot always be obtained.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and enables an operator to easily visually confirm that an electric wire inserted into a socket is securely clamped by a quick connection terminal portion. It is an object of the present invention to provide a glow starter socket capable of reliably performing electric connection of a wire to a quick connection terminal portion and prevention of disconnection.

[0007]

In order to achieve the above object, according to the present invention, a pair of base pins for inserting a base pin of a hook-type glow starter into a socket body made of an insulating material. An insertion hole and an electric wire insertion hole into which an electric wire is inserted are provided, a pair of conductive fittings are housed in the socket body, and each of the conductive fittings has a base pin holding portion to which the base pin is connected and held, and A quick-connecting terminal portion to which the wire inserted from the wire insertion hole is connected, wherein the base pin insertion hole is a large-diameter portion into which the large-diameter portion of the base pin can be inserted and the glow starter is rotated by a required angle. A glow starter socket comprising a small diameter portion for locking the glow starter, wherein the quick-connecting terminal portion is disposed near the large diameter portion of the base pin insertion hole and from outside the socket body. Those disposed in a position visible through the down insertion hole.

In the above configuration, the quick-connecting terminal portion can be visually recognized from the outside of the socket body through the base pin insertion hole, so that it is possible to visually confirm that the electric wire is securely held between the quick-connecting terminal portion. Thereby, the electrical connection between the electric wire and the conductive fitting and the prevention of disconnection can be ensured.

According to a second aspect of the present invention, in the glow starter socket according to the first aspect, the insertion direction of the electric wire into the electric wire insertion hole is perpendicular to the insertion direction of the glow starter into the base pin insertion hole. Is what it is. In this configuration, a configuration in which the glow starter is mounted from the upper surface of the socket body and the electric wire is inserted from the side surface can be adopted, which can contribute to downsizing of the socket body.

According to a third aspect of the present invention, in the glow starter socket according to the first aspect, the quick-connecting terminal portion is formed by a locking spring portion that sandwiches the electric wire and a conductive portion, and the electric wire is inserted into the electric wire insertion hole. The direction is parallel to the direction in which the glow starter is inserted into the base pin insertion hole, and the locking spring portion is arranged at substantially the same height as the base pin holding portion, or slightly on the bottom side. In this configuration, a form in which the glow starter and the electric wire are mounted and inserted from the upper and lower surfaces of the socket body, respectively, can be adopted.

According to a fourth aspect of the present invention, in the glow starter socket according to the second aspect, the quick-connecting terminal portion is formed by a locking spring portion for sandwiching the electric wire and a conductive portion facing the locking spring portion. Are formed so as to open toward the inside of the socket body when the electric wire is pinched. In this configuration, it is easy to visually recognize the state in which the locking spring portion is holding the electric wire.

According to a fifth aspect of the present invention, in the glow starter socket according to the fourth aspect, the conductive member extends the conductive portion of the quick-connecting terminal portion in a direction substantially the same as the rotational mounting direction of the glow starter. Move the side to the same side as the locking spring 9
The base pin holding portion is formed by bending the base pin by 0 degree or more so that the base pin holding portion does not catch on the quick connection terminal portion. In this configuration, since the distance between the base pin holding portion and the fulcrum is short, a large glow starter holding force can be obtained.

According to a sixth aspect of the present invention, in the glow starter socket according to the fifth aspect, the tip of the base pin holding portion is bent in a direction away from the large diameter portion of the base pin insertion hole. In this configuration, the base pin holding portion does not hinder the visual recognition of the quick connection terminal portion through the base pin insertion hole, and the base pin holding portion becomes a mountain-shaped portion, and the base pin is located inside the conductive plate. To prevent
In addition, a click feeling when the glow starter is rotated is obtained.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A glow starter socket according to one embodiment of the present invention will be described below with reference to the drawings. 1 shows the appearance of the socket in a disassembled state, FIG. 2 shows the configuration of the socket viewed from the bottom side, and FIG. 3 shows the configuration of the conductive metal fittings housed in the socket. In these figures, a socket 1 has an insulating socket body 4 made of a resin material or the like.
(Hereinafter referred to as a body) and a pair of conductive fittings 6 and 6 housed in the body 4 at symmetric positions with respect to the center of the socket.
It is composed of Each conductive fitting 6 (detailed configuration will be described later) is inserted into the body 4 through openings on both side surfaces.

A glow starter 20 is provided on the upper surface of the body 4.
The base pin insertion holes 23 into which the pair of base pin large-diameter portions 25 are inserted are formed. On both left and right sides of the body 4, wire insertion holes 17, 17 into which the wires 9, 9 are inserted are formed. Each base pin insertion hole 23 is provided in the base pin large diameter portion 2.
5 (pin tip) and a small diameter portion 23b that is continuously open and passes through the base pin small diameter portion 26 (pin base), and is symmetrical in a substantially arc shape with respect to the center of the socket. Are located in

The glow starter 20 and each wire 9 are inserted into the large diameter portion 23a of the base pin insertion hole 23 of the glow starter 20 and rotated by a required angle. Is electrically and mechanically connected to each conductive metal fitting 6 with one touch by inserting the wire through each wire insertion opening 17. The small-diameter portion 23b of the base pin insertion hole 23 guides the base pin small-diameter portion 26 when the glow starter 20 rotates and moves, and
0 is stopped and the rotational movement of a predetermined value or more is stopped.

The conductive metal member 6 includes a base pin holding spring portion 7 for holding the base pin large-diameter portion 25 in contact therewith, and a core wire 10 of the electric wire 9.
And a quick-connecting terminal portion 8 for connecting the terminals to each other. The base pin holding spring portion 7 is formed by bending one end side 6b (a fulcrum) of the conductive plate base 6a to the same side as the locking spring portion 8b described later by 90 degrees or more. On the tip side of the holding spring portion 7, a mountain-shaped portion 7a in a side view is formed which protrudes in a direction away from the conductive plate base 6a.
c is bent again toward the conductive plate base 6a. The base pin holding spring portion 7 having such a mountain-shaped portion 7a prevents the base pin 25 from entering the inside of the conductive metal fitting 6, and also provides a click feeling when the glow starter is rotated.

The quick-connecting terminal portion 8 includes a locking spring portion 8b formed in a piece 8c formed by bending the other end of the conductive plate base portion 6a at a substantially right angle, and a conductive plate base portion 6a opposed to the locking spring portion 8b.
And a conductive portion 8a which is itself. Lock spring part 8
The space formed by cutting and raising the front end side of b serves as an insertion port for the core wire 10, and the inserted core wire 10 is sandwiched between the locking spring portion 8b and the conductive portion 8a and is prevented from falling off.

The distal end of the core wire 10 is
Is inserted between the inner surface of the base plate and the conductive plate base 6a.
a between the front end 7c and the conductive plate base 6a. Here, the inside 6c of the bent portion of the base pin holding spring portion 7
Is located on the extension of the core wire 10 connected to the quick connection terminal portion 8, so that even if the inserted core wire 10 is long, the bent portion inside 6 is not required without a special stopper.
Stop at c. The conductive metal fitting 6 includes a conductive plate fixing portion 6d,
8d, it is locked in the socket body 4.

In a state in which the above-described conductive metal fitting 6 is housed in the body 4, as shown in FIG. 2, each conductive plate base 6a is arranged outside the base pin insertion hole 23, and the quick connection terminal is provided. The base pin is formed by extending from the side where the conductive portion 8a of the portion 8 is located in the same direction as the rotation mounting direction of the glow starter 20, and bending one end 6b thereof to the same side as the locking spring portion 8b by 90 degrees or more. The holding spring portion 7 is formed. The holding spring portion 7 is also arranged close to the outer peripheral side of the small diameter portion 23b of each base pin insertion hole 23. The quick-connecting terminal portion 8 is arranged on the inner surface of the body on the side where the electric wire insertion ports 17 are located, and is located close to the large-diameter portion 23a of the base pin insertion hole 23 and facing the large-diameter portion 23a. Have been. In this way, the quick connection terminal portion 8 can be visually recognized from the outside of the body 4 through the base pin insertion hole 23.

Further, in order to make the connection state of the electric wire in the quick connection terminal portion 8 easily visible from the outside, that is, in order to secure the visibility, the following configuration is adopted. The tip 7c of the base pin holding spring portion 7 is bent in a direction away from the large-diameter portion 23a of the base pin insertion hole 23, and has a length such that the front end 7c does not hook on the locking spring portion 8b. The locking spring portion 8b is arranged so as to open toward the inside of the body 4 when sandwiching the electric wire 9 (core wire 10). The direction in which the electric wire 9 is inserted into the electric wire insertion hole 17 is orthogonal to the direction in which the base pin large diameter portion 25 is inserted into the base pin insertion hole 23. Thus, a configuration in which the glow starter 20 is mounted from the upper surface of the socket body 4 and the electric wire 9 is inserted from the side surface can be adopted, as compared with a configuration in which the glow starter and the electric wire are both mounted and inserted from the upper surface of the socket body 4. The socket body 4 can be downsized.

FIG. 4 shows the appearance of the socket 1, and FIG. 5 shows an enlarged view of a portion A in FIG. As shown in the drawing, a field of view for viewing the quick connection terminal portion 8 through the large diameter portion 23a of the base pin insertion hole 23 is secured. Thereby, it can be confirmed whether or not the core wire 10 of the electric wire 9 is properly held between the locking spring portion 8b and the conductive portion 8a. Also,
By visually checking the degree of deformation of the locking spring portion 8b,
Even when an inexpensive copper alloy is used and a non-reconnectable quick connection terminal is used, it can be determined whether or not the quick connection terminal has been connected / disconnected even once.

Next, the glow starter 20 is connected to the socket 1
When mounting the base pin, the base pin large-diameter section 25 is inserted into the large-diameter section 23a of the base pin insertion hole 23 and rotated in the direction of the arrow in FIG. The positional relationship is such that the spring portion 7 comes into contact with the mountain-shaped portion 7a on the distal end side. As the glow starter 20 rotates, the large diameter portions 25 of the base pins 25 are held from the distal ends of the base pin holding springs 7 over the mountain-shaped portions 7a.
At this time, since an appropriate click feeling is obtained, the glow starter 20 is not held at an incomplete position. In addition, since the distance between the one end 6b (fulcrum) of the conductive plate base 6a and the base pin holding spring 7 is relatively short,
Large capping pin holding force can be obtained. FIG. 6 shows a state where the glow starter 20 is mounted on the socket 1.

FIG. 7 shows a conductive fitting 6 according to another embodiment. In the above-described embodiment, the direction in which the electric wire 9 is inserted into the electric wire insertion hole 17 is orthogonal to the direction in which the base pin large diameter portion 25 is inserted into the base pin insertion hole 23. However, in the embodiment shown in FIG. If the conductive metal fitting 6 is used, the direction in which the wire 9 is inserted into the wire insertion hole 17 can be parallel to the direction in which the glow starter is inserted into the base pin insertion hole 23.

In the conductive metal fitting 6, a connecting piece 8e extending from the upper edge of one end of the conductive plate base 6a is bent at a substantially right angle, and the leading end is turned back to form a locking spring portion 8b. An opening through which the electric wire is inserted is provided in the connecting piece 8e. The conductive portion 8a of the conductive plate base 6a itself and the locking spring portion 8
b constitutes the quick connection terminal portion 8. In addition, the conductive plate base 6
a itself forms the base pin holding spring portion 7. The quick connection terminal portion 8 is disposed at substantially the same height as or slightly below the bottom surface of the base pin holding portion (the front side of the hand in the drawing), and is obliquely viewed in the same direction as the insertion direction of the electric wire 9 through the base pin insertion hole. become. When the conductive metal fitting 6 is used, the development of the conductive plate is not rectangular.

The direction in which the electric wire 9 is inserted into the socket body 4 is not limited to the above embodiments, and the locking spring portion 8 may be used.
As long as the holding state of the electric wire 9 by b can be visually recognized through the base pin insertion hole 23 (the large-diameter portion 23a), any direction may be used. FIGS. 8A to 8D show various forms. (A) and (b) are main part plan views of the socket,
(C) and (d) are cross-sectional views of main parts of the socket, and the same members as those described above are denoted by the same reference numerals. The insertion direction of the wire 9 is
(A) shows the case from the side of the socket body 4, (b) shows the case from the front of the socket body 4, (c) shows the case from the upper surface of the socket body 4, and (d) shows the case from the bottom of the socket body 4.

Note that the present invention is not limited to the configuration of the above embodiment, and various modifications are possible. For example, in the above-described embodiment, the mode in which the quick-connecting terminal portion that holds the electric wire is visible through the large-diameter portion of the base pin insertion hole has been described. The same-speed connection terminal portion may be visually recognized through the portion.

[0028]

As described above, according to the first aspect of the present invention,
Since the large-diameter portion of the base pin insertion hole and the quick-connecting terminal portion that sandwiches the electric wire are arranged close to each other, the connection state of the electric wire can be easily visually checked through the large-diameter portion of the base pin insertion hole, Electrical connection between the electric wire and the conductive fitting and prevention of disconnection can be reliably performed. Also, by visually checking the degree of deformation of the locking spring portion, it can be determined whether or not the electric wire connection is appropriate. According to the second aspect of the present invention, since the insertion direction of the electric wire is made orthogonal to the insertion direction of the glow starter into the base pin insertion hole, the glow starter is mounted from the upper surface of the socket body, and the electric wire is inserted from the side surface. The socket body can be downsized as compared with a mode in which both the glow starter and the electric wire are mounted and inserted from the upper surface of the socket body. According to the third aspect of the present invention, since the insertion direction of the electric wire is parallel to the insertion direction of the glow starter, it is possible to adopt a mode in which the glow starter and the electric wire are mounted and inserted from the upper and lower surfaces of the socket body, respectively. It is possible to correspond to the socket shape. According to the fourth aspect of the present invention, since the quick-connecting terminal portion is disposed facing the large-diameter portion of the base pin insertion hole, the visibility can be further improved. According to the invention of claim 5,
The base pin holding portion is formed by bending inward of the socket, and its tip does not hang on the locking spring portion after connection, so that the electric wire connection state can be accurately visually observed from the base pin insertion hole large diameter opening. . Further, since the distance between the base pin holding portion and the fulcrum is reduced, the base pin can be held with a large elastic force. According to the invention of claim 6, since the tip of the base pin holding portion is bent in the direction of the quick connection terminal portion,
The base pin holding portion has a mountain shape, prevents the base pin from entering the inside of the conductive plate, and can provide a click feeling when the glow starter is rotated and mounted.

[Brief description of the drawings]

FIG. 1 is an external view of a glow starter socket according to an embodiment of the present invention in an exploded state.

FIG. 2 is a bottom view of the socket.

FIG. 3 is a configuration diagram of a conductive fitting housed in the socket.

FIG. 4 is an external view of the socket.

FIG. 5 is an enlarged perspective view of a portion A in FIG. 4;

FIG. 6 is a perspective view showing a state where a glow starter is mounted on the socket.

FIG. 7 is a perspective view showing a conductive fitting according to another embodiment of the present invention.

FIGS. 8A and 8B are diagrams showing various insertion directions of an electric wire into a socket body, wherein FIGS. 8A and 8B are plan views of main parts of the socket, and FIGS. 8C and 8D are cross-sectional views of main parts of the socket.

FIG. 9 is an exploded perspective view of a conventional glow starter socket.

FIG. 10 is a bottom view of a conventional glow starter socket.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Socket 4 Socket body 6 Conductive metal fitting 6a Conductive plate base 7 Base pin holding spring part 7a Mountain-shaped part 8 Quick connection terminal part 8b Lock spring part 8a Conductive part 9 Electric wire 17 Electric wire insertion port 20 Glow starter 23 Base pin insertion hole 23a Large diameter part of the base pin insertion hole 25 Large diameter part of the base pin

Claims (6)

[Claims] 1. A socket body made of an insulating material is provided with a pair of base pin insertion holes into which a base pin of a hook-type glow starter is inserted, and an electric wire insertion hole into which an electric wire is inserted. A pair of conductive fittings are housed in each of the conductive fittings, and each of the conductive fittings has a base pin holding portion to which the base pin is connected and held, and a quick connection terminal portion to which the wire inserted from the wire insertion hole is connected. In the glow starter socket, the base pin insertion hole includes a large diameter part into which the large diameter part of the base pin can be inserted, and a small diameter part that locks the glow starter by rotating the glow starter by a required angle. The quick-connecting terminal portion is disposed near the large diameter portion of the base pin insertion hole and at a position visible from the outside of the socket body through the base pin insertion hole. Starter socket. 2. The insertion direction of an electric wire into the electric wire insertion hole,
2. The glow starter socket according to claim 1, wherein the glow starter socket is configured to be orthogonal to a direction in which the glow starter is inserted into the base pin insertion hole. 3. The quick-connecting terminal portion is formed of a locking spring portion for sandwiching an electric wire and a conductive portion, and the insertion direction of the electric wire into the electric wire insertion hole is the same as the insertion direction of the glow starter into the base pin insertion hole. The glow starter socket according to claim 1, wherein the locking spring portion is parallel, and is arranged at substantially the same height as or slightly below the bottom surface of the base pin holding portion. 4. The quick-connecting terminal portion is formed of a locking spring portion for sandwiching an electric wire and a conductive portion opposed thereto, and the locking spring portion is formed so as to open toward the inside of the socket body when the electric wire is sandwiched. 3. The method according to claim 2, wherein
Glow starter socket as described. 5. The conductive fitting extends the conductive portion of the quick-connecting terminal portion in a direction substantially the same as the rotation mounting direction of the glow starter, and bends its tip side to the same side as the locking spring portion by 90 degrees or more. 5. The glow starter socket according to claim 4, wherein the base pin holding section is formed so that the base pin holding section does not engage with the quick connection terminal section. 6. The glow starter socket according to claim 5, wherein a tip of the base pin holding portion is bent in a direction away from a large diameter portion of the base pin insertion hole.