WO2009141962A1

WO2009141962A1 - Terminal cover

Info

Publication number: WO2009141962A1
Application number: PCT/JP2009/001868
Authority: WO
Inventors: 佐藤純子
Original assignee: タイコエレクトロニクスアンプ株式会社
Priority date: 2008-05-19
Filing date: 2009-04-23
Publication date: 2009-11-26
Also published as: KR20110020232A; JP2009283153A; MY152473A; CN102037613A; KR101300857B1; JP5336768B2

Abstract

A terminal cover which does not open even if a hinge is broken and which can effectively exhibit a restraining force against forces in various directions which try to open the terminal cover. A first half body (30) and a second half body (40) are reliably kept closed to each other by engaging the first half body (30) and the second half body (40) with each other by means of hinge-side locks (60), auxiliary locks (70), a side lock (80), and an electric cable lead-out section lock (90). Since a total of four kinds of locks, i.e., the hinge-side locks (60), the auxiliary locks (70), the side lock (80), and the electric cable lead-out section lock (90), are used, the dimensions of projections of a locking projection section (61), locking claws (72), a locking projection section (81), a locking claw (91), and a locking claw (92) are small. Therefore, the locking projection section (61), the locking claws (72), the locking projection section (81), the locking claw (91), and the locking claw (92) are formed with high dimensional stability and shape stability. Consequently, the terminal cover has stable quality and high durability.

Description

Terminal cover

The present invention relates to a terminal cover that accommodates a terminal crimped to an end of a wire.

In order to protect the terminal fitting and to facilitate the attachment and detachment of the terminal, the terminal may be provided with a resin terminal cover.
As a terminal cover, the following is known.
The terminal cover disclosed in Patent Document 1 can be opened and closed by a hinge. The terminal cover is closed in a state where the terminal is accommodated inside the terminal cover, and the terminal cover is restrained in the closed state by the lock provided on the side of the terminal cover facing the hinge.
The terminal cover disclosed in Patent Document 2 has a lock on the side close to the hinge and the side away from the hinge. Both the lock closer to the hinge and the lock away from the hinge restrain the terminal cover in the closed state.

JP 2007-227165 A Japanese Patent Application Publication No. 2003-157916

However, the above-mentioned prior art has the following problems.
The terminal cover disclosed in Patent Document 1 is provided with a lock only on the side facing the hinge. Therefore, if the hinge is broken, the terminal cover may open on the side where the hinge is provided.

On the other hand, the terminal cover disclosed in Patent Document 2 has a lock provided on the side close to the hinge in addition to the side facing the hinge, so that the terminal cover opens even when the hinge is broken. Can be prevented. However, in the terminal cover disclosed in Patent Document 2, the terminal cover opens 180 ° by the hinge. If the opening angle of the hinge is large, the reaction force in the direction in which the terminal cover is opened by the hinge increases when the terminal cover is closed, so the locking force in the lock must be increased. As a result, the convex part etc. which form a lock become large, the size increase of a terminal cover, and when closing a terminal cover, it will be necessary to close with big force.
Further, the lock closer to the hinge is provided with a lock piece having an opening with which the lock piece is engaged. Since the lock piece extends in a band shape, the lock is released if the lock piece is deformed for some reason. Further, the lock piece extending in a strip shape is difficult to form in terms of shape stability, dimensional stability, and the like.

In addition, when the number of the locking points is small, the fitting of the individual locks becomes tight, and there is a problem that deformation or breakage is likely to occur when engaging or releasing the locks.
Furthermore, a force may be applied to the terminal cover in a direction other than the opening / closing direction around the hinge, and in the case of a conventional lock, there may be a shortage of restraining force for keeping the terminal cover in a closed state.
The present invention has been made on the basis of such a technical problem, and effectively exerts a restraining force against the forces in various directions for opening the terminal cover without opening even when the hinge is broken. It aims at providing the terminal cover which can be done.

To this end, the terminal cover of the present invention is a terminal cover for accommodating a terminal to be crimped to the end of a wire, and the first half for holding the terminal and the second half fitted to the first half A hinge for connecting the first half and the second half openably and closably at one end of the first half and the second half, and at the other end of the first half and the second half A first lock that engages the first half and the second half, a second lock that engages the first half and the second half near the hinge, and a first lock And a third lock portion for restraining relative movement between the first half and the second half along a direction connecting one end side and the other end side between the second portion and the second lock portion. It is characterized by
By providing the second lock portion in addition to the first lock portion, it is possible to prevent the first half and the second half from opening from the hinge side even when the hinge is broken.
Furthermore, the relative movement of the first half and the second half along the direction connecting the one end side provided with the hinge and the other end side can be restrained by the third lock portion. When the first half and the second half are opened centering on one end side or the other end side provided with the hinge, in a direction connecting the one end side and the other end side to the first half body and the second half body , A relative displacement between the first half and the second half occurs. By restricting this relative displacement by the third lock portion, the first half and the second half are prevented from opening centering on the hinge, and when the hinge is broken, the first half from the hinge side And the second half can be prevented from opening.

The terminal cover according to the present invention restrains the first half and the second half from being separated from each other at the portion where the wire is led out from the terminal cover, with the terminal held by the first half. A fourth lock can further be provided.
When an external force is applied to the terminal cover through the electric wire, the fourth lock portion can prevent the first half and the second half from being separated from each other, that is, the terminal cover can not be opened.
The fourth lock portion is particularly effective when the insertion and removal direction of the terminal is orthogonal to the electric wire. When the terminal and the wire are substantially L-shaped orthogonal to each other, a force that the terminal cover is twisted by the wire tends to act.

The second lock portion is formed on a block-shaped locking projection formed on one of the first half and the second half, and on the other of the first half and the second half, And a locking recess engaged with the side surface far from the hinge. By making the locking convex portion into a block shape, downsizing, improvement in dimensional stability, and improvement in shape stability can be achieved as compared to a locking claw or the like.
The second locking portion can restrain the first half and the second half from being separated on the side provided with the hinge when the hinge is broken.

In addition, the third lock portion is formed of a convex portion formed on one of the first half and the second half, and a slit formed on the other of the first half and the second half, The portion is positioned in the slit to restrict the movement of the convex portion in the width direction. Thereby, relative movement between the first half and the second half along the direction connecting the one end side and the other end side is restrained.

The present invention is a terminal cover for accommodating a terminal crimped to an end of a wire, the first half holding the terminal, the second half fitted to the first half, the first half and the first half A hinge for openably connecting the first and second halves at one end of the second half, and first and second halves at the other ends of the first and second halves. And a second lock that engages the first half and the second half in the vicinity of the hinge, with the terminal held by the first half. It may also be characterized by including a fourth lock portion which restrains the first half and the second half from being separated from each other at a portion where the wire is led out from the terminal cover.

Further, the present invention is a terminal cover that accommodates a terminal crimped to an end of a wire, the first half holding the terminal, the second half fitted to the first half, and the first half A hinge for openably connecting the first half and the second half at one end of the body and the second half, and a first half and a second at the other end of the first half and the second half A first lock portion, which engages with the half body, and a first side along a direction connecting the one end side and the other end side, between the one end side and the other end side of the first half body and the second half body; It may also be characterized by comprising a third lock portion that restrains relative movement between the half and the second half.
Furthermore, in a state where the terminal is held by the first half, there is provided a fourth lock portion which restrains the first half and the second half from being separated from each other at a portion where the wire is led out from the terminal cover. It can also be further provided.

According to the present invention, even when the hinge is broken, it is possible to effectively exert a restraining force against forces in various directions for opening the terminal cover without opening the terminal cover.

It is an external view of the terminal cover in this embodiment, (a) is a left side view of the terminal cover, (b) is a front view from the first half of the terminal cover, (c) is the wire lead side of the terminal cover It is a side view from. It is an external view of the state which opened the terminal cover, (a) is a perspective view from the other side of a hinge, (b) is a perspective view from the hinge side. It is an external view of the state which closed the terminal cover, (a) is a perspective view from the 2nd half body side, (b) is a perspective view from the 1st half body side. It is a side view in the state where a terminal cover was opened, (a) is a side view from the same direction as Drawing 1 (a), (b) is a side view from the same direction as Drawing 1 (c). (A) is a schematic side view showing a state in which the terminal cover tries to open from the hinge side when the hinge is broken; (b) is intended to open the terminal cover from the opposite side of the hinge when the hinge is broken It is a schematic side view which shows the state which was carried out. (A) is a figure which shows the restraint direction exhibited by a wire lead-out part lock when the force from wiring acts on a wiring cover, (b) is a first half by wire lead-out part lock when a hinge breaks. It is a figure which shows the displacement restraint direction of the 2nd half with respect to a body.

Hereinafter, the present invention will be described in detail based on the embodiment shown in the attached drawings.
As shown in FIG. 1, the terminal cover 10 accommodates the receptacle terminal 20. The receptacle terminal 20 is formed of a conductive material such as a copper alloy and engages with a plug terminal (not shown). The receptacle terminal 20 is formed of a barrel portion 21 crimped to the end of the electric wire 100, and a receptacle portion 22 extending from the barrel portion 21 in a direction perpendicular to the axial direction of the electric wire 100 and in which plug terminals are inserted and removed. The barrel portion 21 has a wire barrel 21 a crimped to the core wire of the electric wire 100 and an insulation barrel 21 b crimped to the sheath of the electric wire 100.

As shown in FIGS. 1 and 2, the terminal cover 10 includes a first half 30, a second half 40, and a hinge 50 for openably connecting the first half 30 and the second half 40. It is formed of As shown in FIG. 3, when the first half 30 and the second half 40 are closed, the terminal cover 10 has a box shape as a whole.

As shown in FIG. 2B, the first half 30 has a cylindrical terminal holding portion 32 for holding the receptacle portion 22 of the receptacle terminal 20 formed on one end side of the plate-like main body portion 31. There is. The hinge 50 is formed on the outer peripheral surface of the terminal holding portion 32.

The second half 40 has a substantially rectangular plate-like base portion 41 whose one side is connected to the hinge 50, a wall portion 42 rising from the side adjacent to the hinge in the base portion 41, and a wall rising from the side opposite to the hinge It is formed of a portion 43 and a wall portion 44 formed along the remaining side. The wall portion 44 is formed with a substantially U-shaped recess 45 for passing the electric wire 100 connected to the receptacle terminal 20. In order to support the electric wire 100, the wall portion 44 is formed with a wire support portion 46 which is continuous with the recess 45 and extends in a direction substantially orthogonal to the wall portion 44 and having a substantially U-shaped cross section.

The terminal cover 10 has an opening 32a of a terminal holding portion 32 for inserting a plug terminal engaged with the receptacle terminal 20 in a state where the first half 30 and the second half 40 are closed (FIG. 2 (b) And the opening 46a (see FIG. 1 (c)) into which the electric wire 100 formed between the electric wire support 46 and the main body 31 is inserted.

In order to maintain the first half 30 and the second half 40 in the closed state, the terminal cover 10 is provided with a hinge-side lock (second lock portion) 60 and an auxiliary lock (first lock portion) 70. A side lock (third lock portion) 80 and a wire lead-out portion lock (fourth lock portion) 90 are provided.

As shown in FIGS. 4A and 4B, the hinge-side locks 60 are respectively provided on both sides of a hinge 50 provided on one end side of the first half 30. The hinge-side lock 60 has locking projections 61 respectively formed on both sides of the terminal holding section 32 in the first half 30 and locking recesses 62 formed in the

walls

42 and 44 in the second half 40. It consists of
The locking projection 61 and the locking recess 62 have locking

surfaces

61 a and 62 a on the side far from the hinge 50. The locking corner portion 61b positioned at one end of the locking surface 61a is formed at a right angle, whereas the locking corner portion 62b positioned at one end of the locking surface 62a is formed at an acute angle. When the first half 30 and the second half 40 are closed centering on the hinge 50, the locking corner 61b passes over the locking corner 62b, and the locking surface 61a and the locking surface 62a face each other. In this state, the locking projection 61 and the locking recess 62 are engaged.

As shown in FIG. 5A, when the hinge 50 is broken, the hinge-side lock 60 is formed on the first half 30 as the engagement convex portion 61 and the engagement concave portion 62 engage with each other. On the other hand, the second half 40 is prevented from opening at the hinge 50 side (in the direction of arrow A in FIG. 5A).

As shown in FIG. 2, in the first half 30 and the second half 40, two sets of auxiliary locks 70 are provided on the side (other end side) opposite to the hinge 50. The auxiliary lock 70 has a step 71 formed at the end of the main body 31 of the first half 30 and a locking claw 72 formed to project upward from the upper end of the wall 43 of the second half 40. It is formed from
As shown in FIG. 3 (b), the first half 30 and the second half 40 are locked on the side opposite to the hinge 50 by the locking claw 72 being locked to the step 71. . As shown in FIG. 5 (b), the auxiliary lock 70 restrains the first half 30 and the second half 40 from opening around the hinge 50 (in the direction of arrow B in FIG. 5 (b)). Do.

As shown in FIGS. 1A and 2A, the side lock 80 is a side adjacent to the hinge 50 in the main body 31 of the first half 30 and the base 41 of the second half 40. And are provided. That is, the side lock 80 includes a locking convex portion (convex portion) 81 formed on the first half 30 and a locking slit (slit) 82 formed on the wall portion 42 of the second half 40. . The locking slit 82 is continuously formed in the wall portion 42 in the direction orthogonal to the surface of the base portion 41 at the intermediate portion on the hinge 50 side and the side on which the auxiliary lock 70 is provided. The main body portion 31 is formed with a wall portion 83 projecting toward the second half 40 along the side adjacent to the hinge 50. The locking convex portion 81 is formed so as to protrude outward from the wall portion 83. The locking convex portion 81 has a trapezoidal shape in which the cross-sectional shape in the width direction of the locking slit 82, that is, in the direction along the surface of the main body portion 31, gradually reduces toward the tip.

As shown in FIGS. 1 (a) and 3 (b), as the side lock 80 closes the first half 30 and the second half 40, the locking convex portion 81 forms the locking slit 82. Get inside. The positioning of the locking convex portion 81 in the locking slit 82 restricts the movement of the locking convex portion 81 in the width direction of the locking slit 82. Thereby, the first half body 30 and the second half body 40 are restrained (in the direction of the arrow B in FIG. 5B) by the reaction force of the hinge 50 and the like. Further, when the hinge 50 is broken, the second half 40 is prevented from opening on the hinge 50 side with respect to the first half 30 (in the direction of arrow A in FIG. 5A).

As shown in FIG. 2 (b), the wire lead-out portion lock 90 has a locking claw 91 provided on the side far from the hinge 50 in the main body 31 of the first half 30, and a second half And a hook 92 formed at the end of the wire support 46.
As shown in FIG. 1C, when the wire lead-out portion lock 90 closes the first half 30 and the second half 40, the locking claw 91 and the locking claw 92 engage with each other. . The wire outlet lock 90 prevents the first half 30 and the second half 40 from opening (in the direction of arrow B in FIG. 5B). Furthermore, as shown in FIG. 6A, in the wire lead-out portion lock 90, the wire 100 is twisted or the like, and the wire support of the main portion 31 and the second half 40 of the first half 30 from the wire 100 side. The body portion 31 and the second half of the first half 30 act when a force acts in the direction in which the portion 46 opens (in the direction of arrow C in FIG. 6A), that is, in the direction in which the terminal cover 10 is twisted open. It prevents the 40 wire support portions 46 from opening. Furthermore, as shown in FIG. 6 (b), when the hinge 50 is broken, the wire lead-out part lock 90 has a direction in which the second half 40 is along the surface of the main body 31 with respect to the first half 30. (In the direction of arrow D in FIG. 6B) is prevented.

According to the terminal cover 10 described above, the first half 30 and the second half 40 are engaged by the hinge-side lock 60, the auxiliary lock 70, the side lock 80, and the wire lead-out lock 90, so that the first The half 30 and the second half 40 can be reliably maintained in the closed state.
Moreover, by using a total of four types of locks, the hinge side lock 60, the auxiliary lock 70, the side lock 80, and the wire outlet lock 90, the hinge side lock 60, the auxiliary lock 70, the side lock 80, and the wire outlet lock 90 In each case, the projection size of the locking convex portion 61, the locking claw 72, the locking convex portion 81, the locking claw 91, and the locking claw 92 for locking can be reduced. Therefore, the dimensional stability and shape stability when forming the locking convex portion 61, the locking claw 72, the locking convex portion 81, the locking claw 91, and the locking claw 92 are excellent, and stable quality and high durability You can get
Further, by using a total of four types of locks, the hinge side lock 60, the auxiliary lock 70, the side lock 80, and the wire lead-out lock 90, when the terminal cover 10 is closed, the restraining force in various directions is high. Further, even if the hinge 50 is broken, the terminal cover 10 can be reliably prevented from opening.
Furthermore, the hinge-side lock 60 is not a restriction by the engagement of the claws, but a restriction on the surfaces of the locking convex portions 61 and the locking surfaces 61 a and 62 a of the locking concave portion 62. In the case of the engagement of the claws, the restraint may be released carelessly due to the deformation, breakage, deflection or the like of the claws, but in the case of the restraint by the surface, the careless release of the restraint is hard to occur.

Although the configuration of the terminal cover 10 has been mentioned in the above embodiment, the shape of the detail can be changed as appropriate. Moreover, it is not essential to have all the hinge side lock 60, the auxiliary lock 70, the side lock 80, and the electric wire lead-out part lock 90, and it is possible to combine 2 or more types of these suitably.
Furthermore, as for the hinge side lock 60, the auxiliary lock 70, the side lock 80, and the wire lead-out portion lock 90, as long as the same restraining function can be exhibited, the specific shape and the like of the locking portion is the configuration other than the above. Also good.
In addition to this, it is possible to select the configuration described in the above-described embodiment or to appropriately change it to another configuration without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 10 ... Terminal cover, 20 ... Receptacle terminal, 21 ... Barrel part, 22 ... Receptacle part, 30 ... 1st half body, 31 ... Main body part, 32 ... Terminal holding part, 40 ... 2nd half body, 41 ... Base part, 46: electric wire support portion, 50: hinge, 60: hinge side lock (second lock portion), 61: locking projection, 61a: locking surface, 62: locking recess, 62a: locking surface, 70: ... Auxiliary lock (first lock portion) 71: stepped portion 72: locking claw 80: side lock (third lock portion) 81: locking convex portion (convex portion) 82: locking slit Slit), 90: wire outlet lock (fourth lock), 91, 92: locking claw, 100: wire

Claims

A terminal cover for accommodating a terminal crimped to an end of a wire, the terminal cover comprising:
A first half for holding the terminal;
A second half fitted to the first half;
A hinge connecting the first half and the second half openably and closably at one end of the first half and the second half;
A first lock portion engaging the first half and the second half on the other end side of the first half and the second half;
A second lock which engages the first half and the second half in the vicinity of the hinge;
The relative movement between the first half and the second half along the direction connecting the one end side and the other end side is restricted between the first lock portion and the second lock portion. The third lock part,
A terminal cover comprising:
A fourth method for restraining the first half and the second half from being separated from each other at a portion where the wire is led out from the terminal cover while the terminal is held by the first half. The terminal cover according to claim 1, further comprising a lock portion of
The terminal cover according to claim 2, wherein the terminal has an insertion and removal direction orthogonal to the electric wire.
The second lock portion is formed on a block-shaped locking projection formed on one of the first half and the second half, and on the other of the first half and the second half. The terminal cover according to claim 1, characterized in that the terminal cover is formed from a locking recess which engages with the side surface of the locking protrusion remote from the hinge.
5. The apparatus according to claim 4, wherein the second lock portion restrains separation of the first half and the second half at the one end side when the hinge is broken. Terminal cover.
The third lock portion is formed of a convex portion formed on one of the first half and the second half, and a slit formed on the other of the first half and the second half. And the convex portion is positioned in the slit to restrict movement of the convex portion in the width direction, thereby connecting the first half along the direction connecting the one end side and the other end side. The terminal cover according to claim 1, wherein relative movement between a body and the second half is restricted.
A terminal cover for accommodating a terminal crimped to an end of a wire, the terminal cover comprising:
A first half for holding the terminal;
A second half fitted to the first half;
A hinge connecting the first half and the second half openably and closably at one end of the first half and the second half;
A first lock portion engaging the first half and the second half on the other end side of the first half and the second half;
A second lock which engages the first half and the second half in the vicinity of the hinge;
A state in which the first half and the second half are separated from each other at a portion where the wire is led out from the terminal cover while the terminal is held by the first half; With four lock parts,
A terminal cover comprising:
A terminal cover for accommodating a terminal crimped to an end of a wire, the terminal cover comprising:
A first half for holding the terminal;
A second half fitted to the first half;
A hinge connecting the first half and the second half openably and closably at one end of the first half and the second half;
A first lock portion engaging the first half and the second half on the other end side of the first half and the second half;
A third lock for restraining relative movement between the first half and the second half along a direction connecting the one end and the other end between the one end and the other end. Department,
A terminal cover comprising:
A fourth method for restraining the first half and the second half from being separated from each other at a portion where the wire is led out from the terminal cover while the terminal is held by the first half. The terminal cover according to claim 8, further comprising a lock portion of