JP2008262839A - Harness connecting member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a harness connecting member which can be manufactured at low cost with a mold and die structure simplified through a structure of dividing a holding body. <P>SOLUTION: The harness connecting member is structured of divided-in-half retainers 1, 1' consisting of a pin insertion hole 1a, a long groove 1b, and a terminal insertion hole 8c, a plurality of electric terminals 2 each equipped with a connecting part 2a inserted into the terminal insertion hole 1c, and a crimping part 2b connecting core wires of the electric wire 3, a pin terminal 4 for connecting the electric terminals 2, and a cover member 5 fitted around the retainers 1, 1'. The retainers 1, 1' consist of members divided into halves of the same shape along a length direction, both of which can be integrated. The retainers 1, 1' have the pin-insertion holes 1a each penetrating their center shafts for inserting a pin terminal 4, the long grooves 1b of a cross section nearly semispherical for fitting the electric wire 3 along a length direction on their surfaces, and the terminal insertion hole 1c in each long groove 1b for inserting the electric terminal 2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a harness connecting member used in a harness circuit of an automobile, for example.

  In a harness circuit, it is often necessary to branch a plurality of branch lines from a trunk line, and conventionally, connection is performed by various methods. Therefore, conventionally, a part of the trunk line is stripped, a splice joint method that branches by crimping the branch line to the exposed conductor, and a circuit branch connector is arranged at the terminal part of the trunk line. For example, two types of methods such as a joint connector method described in Patent Document 1 are often used for branching using a general-purpose connector and a crimp terminal.

  In the former splice joint method, one to three electric wires must be crimped, and there is a problem that workability is very poor in the state after the machining, and crimping is performed on the production line. Is difficult for line production.

  Therefore, the latter joint connector has been developed as a solution to the problems of the splice joint method. This joint connector method enables joint processing on the harness production line, so that the production efficiency is improved as compared with the splice joint method, and it is possible to cope with the modification of the harness circuit. However, since the number of components such as connectors and mating general-purpose connectors, bus bars, connection terminals, and the like increases, it takes a long time to assemble the harness circuit.

  In particular, the joint connector system disclosed in Patent Document 1 has many problems that need to be solved, such as space saving, further improvement in workability, simplification of structure, and increase in current capacity.

JP-A-2005-71614

  In Japanese Patent Application No. 2005-31774, the present applicant has proposed a harness connecting member using a columnar holding body made of synthetic resin. However, since the above-mentioned holding body has a complicated internal structure, there is a problem that the mold is expensive and it is difficult to manufacture.

  An object of the present invention is to provide a harness connecting member that can be manufactured at a low cost by simplifying the mold structure by using a split structure for the holding body.

  Another object of the present invention is to provide a harness connecting member that covers the periphery of the holding body with a cover member so that the divided structure holding body is difficult to separate.

  Technical features of the harness connecting member according to the present invention for achieving the above-described object include a pin insertion hole at the center, a plurality of terminal insertion holes from the outside toward the inside, and the pin insertion inside A substantially cylindrical holder made of synthetic resin that communicates with the hole is provided, and the holder is formed by combining a plurality of divided members in the longitudinal direction.

  Further, the technical feature of the harness connecting member according to the present invention is a synthetic resin having a pin insertion hole in the center, a plurality of terminal insertion holes from the outside to the inside, and communicating with the pin insertion hole inside A harness connecting member comprising a substantially cylindrical holding body made of a cylinder and a cylindrical cover member that covers from the outside of the holding body and has a split slit, wherein the holding body is divided into a plurality of parts in the longitudinal direction. It is in combining the members.

  According to the harness connecting member according to the present invention, the holding body is divided into a plurality of parts and assembled, so that the mold is simplified.

  Further, according to the harness connecting member according to the present invention, the split holding body is covered with the cover member to prevent the holding body in use from being disassembled, and the electrical members around the holding body are insulated. Can do.

The present invention will be described in detail based on the embodiments shown in the drawings.
The harness connecting member of the present embodiment is divided into two holding bodies 1 and 1 'mainly made of a synthetic resin material having a pin insertion hole 1a, a long groove 1b, and a terminal insertion hole 1c shown in FIG. A connecting portion 2a to be inserted into the terminal insertion hole 1c, a plurality of electric terminals 2 having a crimping portion 2b to which the core wire of the electric wire 3 is connected, a pin terminal 4 for connecting the electric terminals 2 to each other, and a holding body 1 1 'and a cover member 5 provided around 1'.

  As shown in FIG. 2, the holding bodies 1 and 1 ′ are composed of two members that are divided into the same shape along the longitudinal direction, and a pigeon tail 1 d and a pigeon tail groove 1 e are formed in the longitudinal direction along these joints. , Both can be integrated by sliding each other. The holding body 1, 1 ′ combined with the two split members is a substantially cylindrical body, and is provided with a pin insertion hole 1 a for inserting the pin terminal 4 through the central axis of the holding body 1, 1 ′. For example, a total of four long grooves 1b having a substantially semicircular cross section are formed along the longitudinal direction on the surface of 1, 1 ′.

  In addition, although illustration is abbreviate | omitted, the two long grooves 1b formed in the holding bodies 1 and 1 'may be formed in a total of two vertically and horizontally. Furthermore, the long groove 1b may not be formed.

  Further, at the bottom of the long groove 1b, one or a plurality of terminal insertion holes 1c are formed for each long groove 1b, and communicated with the central pin insertion hole 1a inside the holding body 1, 1 ′. The terminal insertion hole 1c is formed so that the connecting portion 2a of the electric terminal 2 can be inserted.

  A protruding ring portion 1f for locking the end of the cover member 5 is formed in an annular shape on the outer surface of the holding body 1, 1 ′ except for the long groove 1b, and one of the protruding portions between the long grooves 1b is formed. The part is provided with a ridge 1g along the longitudinal direction. The inner end side of the projecting ring portion 1f is a wall portion, and the outer end side is an inclined surface. The projecting ring portion 1f may be formed at an appropriate portion of the end portion of the holding body 1, 1 'without being annular.

  The electrical terminal 2 is formed by punching one conductive metal plate, and a cylindrical contact drawn into a cylindrical shape is connected to the front end connecting portion 2a bent inward with respect to the rear end crimping portion 2b. 2c is provided.

  As shown in the cross-sectional view of FIG. 3, the pin terminal 4 is sufficiently reinforced and can be suitably used when the conductive metal plate is bent into a square shape and formed into a plurality of layers. In addition, a metal bar may be processed and used, and the cross-sectional shape may be a round shape.

  The cover member 5 is used to cover the two holders 1 and 1 ′ so that the two holders 1 and 1 ′ are not easily disassembled, and also serves to insulate the electric terminals 2 arranged around the holders 1 and 1 ′. The cover member 5 is a cylindrical body made of hard synthetic resin, and its inner diameter is almost equal to or smaller than the outer diameter of the holding bodies 1 and 1 'to be inserted. A split slit 5a is formed in the longitudinal direction of the cover member 5, and the split slit 5a can be expanded. Moreover, the notch 5b is provided in the both ends of the split slit 5a. Further, a concave portion 5c that fits into the convex portion 1g of the holding body 1 is provided in the middle of the split slit 5a. Further, on the opposite side of the split slit 5a, there is formed a slit portion 5d into which the other convex portion 1g of the holding body 1 'is fitted.

  At the time of assembling, as shown in FIG. 4, the connecting portion 2a of the electric terminal 2 in which the electric wire 3 is connected to the terminal insertion hole 1c of the holding body 1, 1 ′ combined with the two split members as shown in FIG. And the electric wire 3 is mounted along the long groove 1b. Since the edge portion of the connecting portion 2a substantially coincides with the diameter of the pin insertion hole 1a, the connecting portion 2a is stably mounted in the pin insertion hole 1a as shown in FIG. 5, and the center of the cylindrical contact 2c is It coincides with the center of the pin insertion hole 1a. At this time, the inserted connecting portion 2a is locked by a locking portion (not shown) provided in the terminal insertion hole 1c so as not to drop off.

  In this state, when the pin terminal 4 is inserted into the pin insertion hole 1a using a jig, the pin terminal 4 penetrates the cylindrical contact 2c of the connecting portion 2a of each electric terminal 2, and all the electric terminals 2 are pinned. Since the terminals 4 are short-circuited, all the electric wires 3 are electrically connected to each other.

  In order to attach the cover member 5 to the holders 1 and 1 ′, the slits 5 a are opened using the cuts 5 b and the plurality of electric wires 3 are inserted. After that, the cover member 5 is moved to the holding bodies 1 and 1 ′, and as shown in FIGS. 6 and 7, the cover member 5 gets over one protruding ring portion 1f of the holding bodies 1 and 1 ′ and fits into the protruding ring portion 1f. At the same time, the concave portion 5c is fitted to the convex portion 1g, and the slit portion 5d is fitted to the opposite convex portion 1g, thereby completing the mounting state shown in FIG. It does not move in the longitudinal direction or the rotational direction with respect to the body 1, 1 ′.

  Although the holding bodies 1 and 1 'are divided into two, they may be divided into three or more. In the embodiment, the holding bodies 1 and 1' are combined by combining the pigeon tail 1d and the pigeon tail groove 1e. However, it is also possible to prevent a misalignment in the longitudinal direction by adding a lock mechanism. Further, the uniting of the holding bodies 1 and 1 ′ may be performed not by the pigeon tail 1 d and the pigeon groove 1 e but by another uniting mechanism or adhesion.

  Further, the shape of the electric terminal 2 is not limited to the embodiment. For example, the contact connected to the pin terminal 4 may be connected to the pin terminal 4 not by the cylindrical contact 2c but by other notches or the like.

It is a disassembled perspective view. It is a perspective view in the state where a holding body was divided. It is sectional drawing of a pin terminal. It is a perspective view of an assembly. It is sectional drawing of the state which inserted the electrical terminal in the holding body. It is a perspective view of the mounting process of a cover member. It is the perspective view seen from the opposite side of Drawing 6 of the attachment process of a cover member. It is a perspective view in the state where a cover member was installed.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 1 'Holding body 1a Pin insertion hole 1b Long groove 1c Terminal insertion hole 1d Pigeon tail 1e Pigeon tail groove 1f Projection ring part 1g Projection part 2 Electric terminal 3 Electric wire 4 Pin terminal 5 Cover member 5a Split slit 5b Cut 5c Concave part 5d slit part

Claims (7)

  A pin insertion hole at the center, a plurality of terminal insertion holes from the outside to the inside, and a substantially cylindrical holder made of synthetic resin communicating with the pin insertion hole inside, the holding body A harness connecting member comprising a plurality of divided members divided in the longitudinal direction.   A substantially cylindrical holding body made of a synthetic resin having a pin insertion hole in the center and having a plurality of terminal insertion holes from the outside to the inside and communicating with the pin insertion hole inside, and the outside of the holding body A harness connecting member comprising a cylindrical cover member having a slit and a split cover member, wherein the holding body is combined with a plurality of divided members in the longitudinal direction.   The harness connecting member according to claim 1, wherein a contact is provided at the tip of the terminal insertion hole, and an electric terminal having an electric wire connected to the rear end is inserted.   The harness connection member according to claim 2, wherein a pin terminal is inserted into the pin insertion hole and connected to a contact point of the electrical terminal.   The harness connecting member according to claim 2, wherein a long groove is formed along the longitudinal direction of the surface of the holding body, and the terminal insertion hole is provided at the bottom of the long groove.   The harness connecting member according to claim 1, wherein the holding body is divided into two split members having the same shape.   The harness connecting member according to claim 1, wherein the cover member is configured to fit the split slit to a protruding portion provided in a longitudinal direction of the surface of the holding body.

Images