JP3165542U - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector for preventing a user's finger or the like from coming into contact with a conductor during use. SOLUTION: A first clip piece 2 is fixed in a first cover 4 having a U-shaped cross section made of synthetic resin covering from the outside of the teeth of the first clip piece to the middle of a grip portion, and the second clip piece 3 Is fixed in the second cover 5 having a U-shaped cross section made of synthetic resin that covers from the outside of the teeth of the second clip piece to the other grip portion, and the lead wire 7 is crimp-connected to the other end of the first clip piece. Then, the crimp connection portion with the lead wire was covered with the tubular cap 6 made of synthetic resin. [Selection diagram] Fig. 1

Description

  The present invention relates to a connector such as an alligator clip or a worm clip for electrically connecting electrodes and terminals.

  In general, between the electrodes and terminals of the power supply and the device, two crocodile clips (Minome clip) are connected by lead wires, or one end of the lead wire is connected to the terminal of the device and the other end of the lead wire is connected It is electrically connected using a crocodile clip (Minome clip).

Various connectors such as alligator clips and worm clips have been developed (for example, see Patent Documents 1 and 2).
The device described in Patent Document 1 relates to a connector, and specifically, an alligator clip, a worm clip, a banana jack or a BNC comprising a metal part made of a hard metal and a grip part made of a synthetic resin. In a connector such as a jack, an attachment piece is formed on a metal part, and one end of a soft metal crimp sleeve covered with an insulating tube made of soft synthetic resin is crushed and attached to the attachment part of the metal part. After the lead wire of the cord is inserted into the other end of the crimping sleeve, the cord is crimped and connected to the crimping sleeve by being crushed integrally with the insulating cylinder.

  The invention in Patent Document 2 relates to a “covered connection clip”, and specifically, at least one of two pieces of conductors provided with a pinching portion and a gripping portion spanned by a spring. A lead wire is connected to this conductor, and both of the two conductors are covered with an insulating tube from the grip portion to the anti-slip protrusion in the middle of the sandwiching portion.

No. 2-3257 JP 2008-135205 A

The connector disclosed in Patent Document 1 has a metal clamping portion exposed, and the sheathed connection clip disclosed in Patent Document 2 has a connector and a metal portion exposed.
For this reason, the devices and inventions described in Patent Documents 1 and 2 make it easy for a user's finger or the like to touch a holding part or a connector made of a conductor during use.

  The present invention has been made in view of the above problems, and an object thereof is to provide a connector that prevents a user's finger or the like from contacting a conductor during use.

In order to solve the above-mentioned problem, the device according to claim 1 is characterized in that a tooth is formed at one end, a grip portion to which a lead wire can be connected at the other end, a first clip piece made of a conductor, Another tooth is formed that meshes with the tooth, has another gripping portion at the other end, and is biased so as to close the tooth and the other tooth, and grips the gripping portion and the other gripping portion. In the connector comprising the second clip piece made of a conductor that opens the teeth and the other teeth, the first clip piece is connected to the grip portion from the outside of the tooth of the first clip piece. It is fixed in the first cover with a U-shaped cross section made of synthetic resin that covers the middle of the
The second clip piece is fixed in a second cover having a U-shaped cross section made of a synthetic resin that covers from the outside of the teeth of the second clip piece to the other gripping portion, The lead wire is crimped and connected to the end, and the crimp connection portion with the lead wire is covered with a cylindrical cap made of synthetic resin.

  The invention according to claim 2 is the invention according to claim 1, wherein both side walls of the central part of the first cover and the second cover extend in a mountain shape, and one of the covers is the other cover. And forming protrusions on both sides of the inner cover, forming recesses at the positions of the protrusions on both sides of the outer cover, and setting the protrusions in the recesses as fulcrums. .

  The invention according to claim 3 is the urging means for urging the teeth of the first clip piece and the other teeth of the second clip piece to be closed in the idea of claim 1 or 2. Is a torsion spring that is disposed between the first clip piece and the second clip piece and biases the other end of the first clip piece and the other end of the second clip piece apart from each other. It is characterized by that.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the connector which prevented a user's finger | toe etc. from contacting a conductor during use.

It is an external appearance perspective view which shows an example after the lead wire mounting | wearing of the connector which concerns on this invention. (A) is an enlarged plan view of the connector shown in FIG. 1, (b) is an enlarged front view of the connector shown in FIG. 1, and (c) is an enlarged right side view of the connector shown in FIG. FIG. 4D is an enlarged back view of the connector shown in FIG. (A)-(f) is a top view of the components used for the connector shown in FIG. 3A is a rear view of the first cover 4 shown in FIG. 3A, FIG. 3B is a plan view of the first cover 4 shown in FIG. 3A, and FIG. The right view of the 1st cover 4 shown to a), and (d) are the IVd-IVd sectional view taken on the line of FIG.4 (c). 3A is a rear view of the second cover 5 shown in FIG. 3B, FIG. 3B is a plan view of the second cover 5 shown in FIG. 3B, and FIG. The right view of the 2nd cover 5 shown to b), and (d) are the Vd-Vd sectional view taken on the line of (c). (A) is a plan view of the first clip piece 2 used in the connector shown in FIG. 1, (b) is a right side view of (a), and (c) is the connector shown in FIG. The top view of the 2nd clip piece 3 used, (d) is a right view of (c). (A) is a top view which shows the state which accommodated the 1st clip piece 2 in the 1st cover 4, (b) is a plane which shows the state which accommodated the 2nd clip piece 3 in the 2nd cover 5. FIG. It is a figure and (c) is a side view which shows the state which assembled the 1st cover 4 which accommodated the 1st clip piece 2, the 2nd cover 5 which accommodated the 2nd clip piece 3, and the torsion spring. . (A) is a top view of the cap 6 shown in FIG. 1, (b) is a side view of (a), 8 (c) is a back view of (a), (d) is , (B) is a cross-sectional view taken along line VIIId-VIIId, (e) is an arrow view in the P1 direction of (c), and (f) is an arrow view in the P2 direction of (c). It is an external appearance perspective view of the cap 6 shown in FIG. (A)-(l) is explanatory drawing for demonstrating the connection method of the lead wire to the connector shown in FIG.

Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings.
<Connector connection structure>
<Appearance>
With reference to FIGS. 1-10, the connection structure of a connector is demonstrated in the case of an alligator clip.
FIG. 1 is an external perspective view showing an example of a connector according to the present invention after lead wires are mounted.
In the figure, a connector 1 includes a first clip piece 2 made of a conductor to which a lead wire 7 is connected, a second clip piece 3 made of a conductor, a first cover 4 made of a synthetic resin, a second cover 5, and a first clip piece 2. It has a connector main body 1a composed of a torsion spring 8 and a cap 6 which are not shown in the drawing for energizing one clip piece 2 so that a later-described tooth is closed.

<External expansion>
2 (a) is an enlarged plan view of the connector shown in FIG. 1, FIG. 2 (b) is an enlarged front view of the connector shown in FIG. 1, and FIG. 2 (c) is shown in FIG. An enlarged right side view of the connector, FIG. 2D is an enlarged back view of the connector shown in FIG.

  The first clip piece 2 is fixed in the first cover 4. In the first clip piece 2, teeth are formed at the front end portion (left end in FIG. 2C) 2a, and a lead wire (not shown) is connected to the rear end portion (right end in this case) 2c. The first clip piece 2 is fixed so that the teeth of the distal end portion 2a are exposed (upward in FIG. 2C) and positioned at the distal end portion 4a of the first cover 4.

The connecting portion 2 c of the first clip piece 2 is covered by the cap 6 together with the rear end portion 4 c of the first cover 4.
A second clip piece 3 is fixed in the second cover 5. The second clip piece 3 has teeth formed at the tip portion (left end in FIG. 2C) 3a. The second clip piece 3 is fixed in the distal end portion 5a of the second cover 5 so that the teeth are exposed (downward in FIG. 2C).

  A through hole 4i is formed on one side wall 4e of the first cover 4, a projection 5f is formed on the side wall 5h of the second cover 5, and the projection 5f is inserted into the through hole 4i (FIG. 2 ( The same applies to the opposite side of c). These through holes 4 i and protrusions 5 f serve as fulcrums of the first cover 4 and the second cover 5 and are freely rotatable.

Between the first cover 4 and the second cover 5, a torsion spring 8 is arranged as a biasing means for biasing the teeth of the first clip piece 2 and the teeth of the second clip piece 3 to mesh with each other. . By grasping the cap 6 which is the grip portion of the first cover 4 and the grip portion 5c of the second cover 5, the first cover 4 is rotated in the direction of the arrow P0 by the lever principle, and the tip portions 2a and 3a are opened. It is like that.
That is, the end portion 4 c of the first cover 4, the cap 6, and the end portion 5 c of the second cover 5 form a grip portion.

  Here, in the connector of the present embodiment, the outer sides of the first clip piece 2 and the second clip piece 3 made of a conductor are covered with a synthetic resin which is an insulator, and the first clip piece 2 and the second clip piece. Since the third tooth is located on the inner side of the side surfaces of the tip portions of the first cover 4 and the second cover 5, it is possible to prevent a user's finger or the like from inadvertently contacting the teeth.

<Parts list>
FIGS. 3A to 3F are plan views of components used in the connector shown in FIG.
3A shows a first cover 4 used in the connector shown in FIG. 1, FIG. 3B shows a second cover 5 used in the connector shown in FIG. 1, and FIG. 1, the first clip piece 2 used in the connector shown in FIG. 1, FIG. 3 (d) shows the second clip piece 3 used in the connector shown in FIG. 1, and FIG. The cap 6 used in the connector shown in FIG. 3 and FIG. 3 (f) show a torsion spring 8 as a biasing means used in the connector shown in FIG.

<First cover>
4A is a rear view of the first cover 4 shown in FIG. 3A, FIG. 4B is a plan view of the first cover 4 shown in FIG. 3A, and FIG. ) Is a right side view of the first cover 4 shown in FIG. 3A, and FIG. 4D is a sectional view taken along line IVd-IVd in FIG. 4C.
The first cover 4 is a cover made of a synthetic resin (for example, polyethylene, polypropylene, etc.) having a U-shaped cross-sectional shape. The main plate 4f of the first cover 4 has a trapezoidal tip portion 4a that narrows outward, a rectangular body portion 4b, a trapezoidal first rear end portion 4ca that widens outward, and a rectangular shape. Second rear end portion 4cb. A projection 4g for fixing the first clip piece 2 is formed on the main plate 4f.

On both sides of the main plate 4f, two mountain-shaped side walls 4e, 4d having a high center are integrated, and the side walls 4e, 4d are formed so as to face through holes 4h, 4i.
On the back surface of the second rear end portion 4cb, a projection 4cc having a triangular cross-sectional shape that is thinned outward is formed. The protrusion 4 cc enters the through hole 6 b of the first cover 4 when the cap 6 described later is inserted into the second rear end portion 4 cb of the first cover 4. It is a protrusion for preventing it from coming off.
The bottom surface 4fa of the first rear end portion 4ca of the main plate 4f has a slope that goes down from the center toward the outside and a step 4fb that goes up. This is for fixing between the first cover 4 and the second cover 5 by abutting the tip 8a of one of the torsion springs 8 (for example, the lower end of FIG. 3 (f)).
Here, the inner diameters of the through holes 4h and 4i are d1, and the inner space between the side walls 4e and 4d is d2.

<Second cover>
5A is a rear view of the second cover 5 shown in FIG. 3B, FIG. 5B is a plan view of the second cover 5 shown in FIG. 3B, and FIG. ) Is a right side view of the second cover 5 shown in FIG. 3B, and FIG. 5D is a cross-sectional view taken along the line Vd-Vd in FIG. 5C.

The second cover 5 is a cover made of a synthetic resin having a U-shaped cross-sectional shape. The main plate 5k of the second cover 5 has a hexagonal tip portion 5a that becomes wider and narrows outward, a rectangular barrel portion 5b, and a rectangular gripping portion 5c that is wider than the barrel portion 5b. . As shown in FIG. 5B, a protrusion 5g for fixing the second clip piece 3 is formed on the inner side of the main plate 5k. As shown in FIG. 5A, unevenness for preventing slippage is formed on the back surface of the main plate 5k.
On both sides of the main plate 5k, two mountain-shaped side walls 5h and 5i having a high center are formed. Side walls 5j are formed at the rear ends (right ends in the figure) of the side walls 5h and 5i so as to be continuous with the side walls 5h and 5i. Projections 5e and 5f are formed on the side walls 5h and 5i so that the centers are common. The distance d2 between the outer surfaces of the side walls 5h and 5i of the second cover 5 is such that when the side walls 4d and 4e of the first cover 4 are inserted between the side walls 4d and 4e of the first cover 4, the second cover 5 It is sufficient if the interval is such that it can rotate (d2> d4).

  The protrusions 5e and 5f are, for example, trapezoids having an ellipse on a flat surface and rounded side surfaces, and are narrowed from the top to the bottom in FIG. 5 (d). This is because the protrusions 5e and 5f of the second cover 5 are easily inserted into the through holes 4h and 4i of the first cover 4. The maximum outer diameter d3 of the protrusions 5e and 5f may be such that the second cover 5 can be rotated (d3> d1).

  The first cover 4 and the second cover 5 are made of synthetic resin and have a predetermined elasticity. Therefore, when the protrusions 5e and 5f of the second cover 5 are inserted into the through holes 4h and 4i of the first cover 4, Since the side walls 4d and 4e of the first cover 4 are widened and the side walls 5h and 5i of the second cover 5 are narrowed and restored after the projections 5e and 5f are inserted into the through holes 4h and 4i of the first cover 4, the projections 5e and 5f do not come out of the through holes 4h and 4i.

  Here, the through holes 4h and 4i and the protrusions 5e and 5f have a function of a fulcrum in the connector main body 1a, and the number of processes and parts are compared with the relationship between the pin and the through hole in a general opening / closing structure. It can be expected to reduce the number. That is, in the general opening / closing structure, the first cover, the second cover, and the pin are required, but in the present embodiment, the opening / closing structure can be configured by the first cover and the second cover. .

<First clip piece and second clip piece>
6 (a) is a plan view of the first clip piece 2 used in the connector shown in FIG. 1, FIG. 6 (b) is a right side view of FIG. 6 (a), and FIG. The top view of the 2nd clip piece 3 used for the connector shown in FIG. 1, FIG.6 (d) is a right view of FIG.6 (c).

The first clip piece 2 is made of a conductor and has a substantially boat shape. The first clip piece 2 is formed with teeth at a thin tip portion (left end portion in FIG. 6A) 2a toward the tip, and a circular through hole 2d and a square through hole 2e in a substantially rectangular body portion 2b. A cylindrical lead wire conductor housing portion 2ca and a lead wire conductor housing portion 2cb having a C-shaped cross section are formed at the rear end 2c.
The through hole 2 d is a hole for being fixed in the first cover 4 by being inserted into the protrusion 4 g of the first cover 4. The through-hole 2e is for rotatably fixing between the first cover 4 and the second cover 5 when the other end 8b of the torsion spring 8 (for example, the upper end of FIG. 3 (f)) abuts. It is.

  The lead wire conductor accommodating portions 2ca and 2cb are for crimping and connecting the conductor 7b (see FIG. 10) of the lead wire 7. When the lead wire conductor housing portion 2ca is crimped, the lead wire conductor housing portion 2ca is dented as it is to press the conductor 7b. However, when the lead wire conductor housing portion 2cb is crimped, the divided portion 2cc is pressed so as to pierce the conductor 7b.

  The second clip piece 3 has a U-shaped cross-sectional shape, and has a distal end portion 3a that is thin toward the tip and formed with teeth, and a rectangular body portion 3b that has a U-shaped cross-sectional shape. A circular through hole 3c is formed in the tip portion 3a. The through-hole 3c is for fixing the second clip piece 3 by inserting the protrusion 5g of the second cover 5 when the second clip piece 3 is housed in the second cover 5.

FIG. 7A is a plan view showing a state in which the first clip piece 2 is housed in the first cover 4, and FIG. 7B is a view in which the second clip piece 3 is housed in the second cover 5. FIG. 7C is a plan view showing the state, and FIG. 7C shows a state in which the first cover 4 storing the first clip piece 2, the second cover 5 storing the second clip piece 3, and the torsion spring are assembled. FIG.
A torsion spring 8 is arranged on the main plate 4f of the first cover 4 storing the first clip piece 2, and the second cover 5 storing the second clip piece 3 is placed so that the grip portion 5c faces upward. The side walls 5 h and 5 i of the second cover 5 are inserted between the side walls 4 e and 4 d of the one cover 4, and the first cover 4 is pressed into the through holes 4 h and 4 i of the first cover 4 while pressing the torsion spring 8. By pushing in the protrusions 5f and 5g of the second cover 5, the connector main body 1a is obtained.

<Cap>
8 (a) is a plan view of the cap 6 shown in FIG. 1, FIG. 8 (b) is a side view of FIG. 8 (a), and FIG. 8 (c) is FIG. 8 (a). 8 (d) is a cross-sectional view taken along the line VIIId-VIIId of FIG. 8 (b), FIG. 8 (e) is an arrow view in the P1 direction of FIG. 8 (c), FIG. 8F is an arrow view in the P2 direction of FIG. FIG. 9 is an external perspective view of the cap 6 shown in FIG.

  The cap 6 includes a rectangular body portion 6b, a protrusion 6a protruding from the edge of the body portion 6b, and a tapered rear end portion 6c. The protrusion 6a is for preventing the torsion spring 8 from falling off when the first cover 4 is mounted. A rectangular through hole 6d is formed on the back surface of the body portion 6b, and the cap 6 can be removed by inserting the protrusion 4cc of the second rear end portion 4cb of the first cover 4 when the first cover 4 is mounted. Is prevented. The opening 6e of the body portion 6b has a size that can be attached to the second end portion 4cb of the first cover 4, and the opening 6f of the rear end portion 6c has a size that allows the lead wire 7 to pass therethrough.

<Connector connection method>
FIGS. 10A to 10L are explanatory diagrams for explaining a method of connecting a lead wire to the connector shown in FIG. Among these, FIG. 10 (h)-(l) is a figure which shows the state of the conductor of a lead wire.
First, the connector 7a including the first clip piece 2, the second clip piece 3, the first cover 4, the second cover 5, and the torsion spring 8, and the lead wire 7 from which the conductor 7a is exposed by removing the covering 7b. The cap 6 is prepared and the cap 6 is put on the lead wire 7 in the direction of the arrow P3 (FIG. 10A).
The conductor 7a of the lead wire 7 is inserted in the direction of the arrow P4 into the connection 2c of the first clip piece 2 of the connector main body 1a (FIGS. 10B and 10C).
The first end portion 2ca of the connector main body 1a is pressurized in the direction of the arrow P5, and a part of the conductor 7a of the lead wire 7 is crimped and connected (FIG. 10D).
The second end 2cb of the connector main body 1a is pressurized in the direction of arrow P6, and the remaining conductor 7a of the lead wire 7 is crimped and connected (FIG. 10E).
The connector 1 to which the lead wire 7 is connected by moving the cap 6 in the arrow P7 direction so as to cover the rear end portion 4c of the first cover 4 of the connector main body 1a and the connection portion 2c of the first clip piece 2 is provided. It is obtained (FIG. 10 (f), (g)).

<Effect>
According to the present embodiment, since the outside of the clip piece made of a conductor through which a current flows is covered with the cover that is an insulator, there is no possibility that the user's finger or the like contacts the conductor.
According to this embodiment, since the first cover and the second cover can be rotated by the projections and through holes formed on the side walls, there is no need to use pins, and the number of steps and cost can be reduced accordingly. Can be reduced.

In the above, this invention was demonstrated by suitable embodiment of this invention. Although the present invention has been described with specific examples, various modifications and changes may be made without departing from the broad spirit and scope of the present invention as defined in the claims for utility model registration. Is possible.
For example, in the above-described embodiment, the case of the alligator clip has been described. However, the present invention is not limited to this, and may be applied to a worm clip. In this case, the first holding portion is shortened. It is conceivable to cover the cover and the second cover with an insulating tube.

DESCRIPTION OF SYMBOLS 1 Connector 1a Connector main body 2 1st clip piece 2a, 3a, 4a, 5a Tip part 2b, 3b, 4b, 5b, 6b Body part 2c Connection part 2ca, 2cb Lead wire conductor accommodating part 2cc Dividing part 2d, 2e, 3c, 4h, 4i, 6d Through hole 3 Second clip piece 4 First cover 4c, 6c Rear end 4ca First rear end 4cb Second rear end 4cc, 4g, 5e, 5f, 5g, 6a Projection 4d, 4e, 5h, 5i, 5j Side wall 4f, 5k Main plate 5 Second cover 5c Holding part 6 Cap 6c End part 6e, 6f Opening 7 Lead wire 7a Conductor 7b Covering 8 Torsion spring 8a, 8b End part

Claims (3)

A tooth is formed at one end, a grip portion to which a lead wire can be connected at the other end, a first clip piece made of a conductor,
Another tooth that engages with the tooth is formed at one end, another gripping part is provided at the other end, and the tooth and the other tooth are biased so as to be closed, and the gripping part and the other gripping part In a connector comprising: a second clip piece made of a conductor that opens the teeth and the other teeth by grasping
The first clip piece is fixed in a first cover having a U-shaped cross section made of a synthetic resin covering from the outside of the teeth of the first clip piece to the middle of the gripping part,
The second clip piece is fixed in a second cover having a U-shaped cross section made of a synthetic resin that covers from the outside of the teeth of the second clip piece to the other gripping part,
A connector, wherein a lead wire is crimped and connected to the other end of the first clip piece, and a crimping connection portion with the lead wire is covered with a cylindrical cap made of synthetic resin.   Both side walls of the central part of the first cover and the second cover extend in a mountain shape, and one of the covers covers the other cover, and a protrusion is formed on each side of the inner cover, 2. The connector according to claim 1, wherein a recess is formed at each of the protrusions on both sides of the cover, and the protrusion is fitted into the recess to serve as a fulcrum.   An urging means for urging the teeth of the first clip piece and the other teeth of the second clip piece to be closed is disposed between the first clip piece and the second clip piece, The connector according to claim 1, wherein the connector is a torsion spring that biases the other end of the first clip piece and the other end of the second clip piece apart from each other.

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