JP2600296Y2 - Terminal equipment for electrical equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal device used for a circuit breaker or an electromagnetic contactor.

[0002]

2. Description of the Related Art A terminal device of this type of electric equipment is disclosed in Japanese Patent Publication No. 54-43135.

In this device, as shown in FIG. 9, a screw portion 31 of a terminal screw 30 is screwed into a screw hole 21 provided in a terminal plate 20 attached to a base 10, and the screw portion 31 is screwed with a driver. The connection conductor is pressed against the terminal plate 20 by a metal fitting 40, which is loosely fitted to the neck portion 32 provided between the terminal screw 30 and the screw head 34 of the terminal screw 30 to be electrically connected.

[0004]

[Problems to be solved by the invention]
In the terminal device for electrical equipment shown in (1), when the terminal screw is loosened by the screwdriver operation, the terminal screw falls off as soon as the screw part of the terminal screw is released from the screw hole of the terminal plate, and the work is performed. Sometimes it was difficult .

On the other hand, it is necessary to lift the terminal screw once and insert the connecting conductor. For example, in the case of a round crimp terminal, it is necessary to lift a terminal screw by putting a finger in a narrow space surrounded by a side wall, which makes connection work very troublesome.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to make it difficult for the terminal screws to fall off when the terminal screws are released from engagement with the terminal plate, and for the terminal screws to be removed. It is an object of the present invention to provide a terminal device of an electric device in which a terminal screw is lifted up when a screw connection with a terminal plate is released and a connection conductor can be easily inserted.

[0007]

In order to solve the above-mentioned problems, a terminal device for an electric device according to the present invention is provided with a terminal plate provided with a vertical screw hole, and a screw which is screwed and detached in the vertical direction of the screw hole. A terminal screw consisting of a head part, a neck part formed on the upper part of the screw part, and a screw head part formed on the upper part of the neck part; In a terminal device for electrical equipment comprising a metal for holding a connection conductor between the terminal plate and a base provided with side walls on the left and right sides of the terminal plate and having the terminal plate attached thereto, both side walls of the base are provided. to thereby form an inclined groove extending upward, said at least two clamping pieces sandwich the neck of the terminal screw, this is continuously to clamping piece clamping piece and the other clamping piece substantially as a perpendicular from one clamping piece And both sides
Both sides piece surface contact with the wall, each side piece is provided continuously on the sides piece
The slope that faces the inclined groove when the surface contacts the side walls of the table
There auxiliary plate having a resilient projecting piece having the same width as the width of the groove as a configuration mounted between the head and the losses of the terminal screws.

[0008]

In the terminal device of the electric apparatus, when the terminal screw is released from the screwing of the terminal plate, the elastic protruding pieces of the auxiliary plate resiliently press against the inclined grooves on both side walls, so that the auxiliary plate is lifted upward. The terminal screws are lifted from the terminal plate, and the elastic plates of the auxiliary plate are fitted into the inclined grooves on both side walls, so that the auxiliary plate is supported by the table and holds the terminal screws. In addition, both side pieces are inclined in a state where they are in surface contact with both side walls
Elastic protruding pieces of the same width dimension as the groove width face the inclined groove.
Terminal with the terminal screw released from the screw hole on the terminal plate.
Screws can be positioned from two directions orthogonal to each other.
It is easy to make the end of the terminal screw face the screw hole of the terminal plate.
You.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. Members having the same basic functions as those of the conventional example are denoted by the same reference numerals.

A base 10 made of synthetic resin has two side walls.
A recess 12 surrounded by 11 is formed, and a terminal plate 20 made of a conductive metal material is attached to a lower portion of the recess 12.
At approximately the center of each of the side walls 11, an inclined groove 14 extending upward is formed. In this embodiment, the inclined groove 14 is formed to reach the upper ends of the side walls 11, but may be formed halfway to the upper end.

A vertical screw hole 21 is formed in the terminal plate 20. The screw hole 21 may be formed directly in the terminal plate 20 or a large-diameter hole may be formed in the terminal plate 20 and a nut connected to the large-diameter hole may be provided.

A screw hole 21 of the terminal plate 20 has a terminal screw 30
Screw portion 31 is screwed. The terminal screw 30 has a neck portion 32 having a smaller diameter than the screw portion 31 formed at an upper portion of the screw portion 31 and an operation groove 33 into which a driver (not shown) is fitted on the upper surface of the neck portion 32. 34 are formed.

The screw portion 31 and the screw head 34 of the terminal screw 30
Is equipped with a contact 40 that forms a chevron.
A connection conductor such as an electric wire, a conductor bar or a crimp terminal inserted between them is pressed against the terminal plate 20 to be connected. This contact 40 is formed with a through hole 41 at substantially the center, and the neck 32 of the terminal screw 30 is inserted therethrough and is prevented from falling off by a bulging portion 35 formed below the neck 32. It is loosely fitted so that it can be tilted in the middle and left and right directions.

Further, the screw head 34 of the terminal screw 30 and the contact 40
The metal plate is cut out as shown in FIG.
An auxiliary plate 50 formed by bending at B, CD and IJ, KL is mounted. This auxiliary plate 50 is
And a bridging piece 51 sandwiching the neck portion 32, and is connected to the gripping piece 51 so as to extend from one gripping piece 51 to the other gripping piece 51 so as to be substantially perpendicular to the gripping piece 51 and to make surface contact with both side walls 11. both sides piece 52, both the sides piece 52 is provided continuously on the sides piece 52 of Utsuwadai 10
Terminal screw facing the inclined groove when making surface contact with the side wall 11
Of the inclined groove 14 that keeps the tip of the groove facing the screw hole
An elastic protruding piece 53 having the same dimension as the dimension is provided. Pinching piece
51 has a convex portion 51a having a semicircular holding portion 51b at the center thereof. The both side pieces 52 are provided with a standing part 52a continuously provided so as to stand vertically with the holding piece 51 and a bridging part 52b whose both ends are connected to the standing part 52a.
Surface contact will be made on both side walls 11 of the base 10. Elastic protrusion
53 is an inclined portion 5 connected to the bridging portion 52b of the both side pieces 52.
3a and a contact portion 53b that contacts the inclined groove 14 of the pedestal 10.
The inclined portion 53a and the contact portion 53b are
It is formed in the same width dimension as the method . Therefore, terminal screw 30
Is released from the screw of the terminal plate 20, the elasticity of the auxiliary plate 50
The projecting pieces 53 press against the inclined grooves 14 of the side walls 11
The auxiliary plate 50 is lifted upward, and the terminal screws 30 are removed from the terminal plate 20.
Lifting makes it easier to insert crimp terminals, for example.
The elastic protruding pieces 53 are fitted into the inclined grooves 14 of the side walls 11.
The auxiliary plate 50 is supported by the base 10 to hold the terminal screw 30.
The terminal screws 30 are less likely to fall off, making connection work easier.
Become. Also, both side pieces 52 are tilted in a state of being in surface contact with both side walls 11.
The elastic protrusion 53 having the same width as the width of the inclined groove 14 is
The terminal screw 30 from the screw hole 21 of the terminal plate 20
The terminal screw 30 from two directions perpendicular to each other
The tip of the terminal screw 30 can be
It becomes easier to face the hole 21. For this reason, terminal screws 30
It is easy to re-tighten the screws when removing the
You.

When the elastic projecting piece 53 comes into contact with the inclined groove 14, the screw portion 31 for loosening the terminal screw 30 and the screw hole 21 are loosened.
When the screwing with the elastic projection piece 53 is released, the inclined groove 14
The auxiliary plate 50 is lifted upward by the elastic pressure on the terminal screw 30, and the terminal screw 30 is lifted.

Next, a second embodiment of the present invention will be described with reference to FIGS.
It will be described based on. The difference from the first embodiment is that the elastic protrusions provided from the upper surfaces of the both side pieces 52 of the auxiliary plate 50 in the first embodiment.
That is, 53 is provided from the lower surface of both side pieces 52 of the auxiliary plate 50. That is, the metal plate is cut out as shown in FIG.
B, CD, EF, GH and IJ, KL are bent so that the elastic projecting piece 53 is provided inside.

In this configuration, as in the above, the terminal
When the screw 30 is released from the screwing of the terminal plate 20, the auxiliary plate 50
When the elastic protruding pieces 53 press against the inclined grooves 14 of the side walls 11,
The auxiliary plate 50 is lifted upward, and the terminal screw 30 is
If it becomes easier to lift from 20, for example, inserting crimp terminals etc.
In addition, the elastic projection pieces 53 are fitted into the inclined grooves 14 of the side walls 11.
The auxiliary plate 50 is supported by the base 10 to hold the terminal screw 30
As a result, the terminal screws 30 are less likely to fall off, making connection work easier.
Becomes Also, with both side pieces 52 in surface contact with both side walls 11
The elastic protruding piece 53 having the same width as the width of the inclined groove 14 is the inclined groove.
14; open the terminal screw 30 from the screw hole 21 of the terminal plate 20.
Release the terminal screw 30 from two directions orthogonal to each other.
The tip of the terminal screw 30 can be
It becomes easier to face the screw hole 21. For this reason, terminal screws 30
Easy re-screw work when removed from terminal board 20
Become.

Further, when the elastic protruding piece 53 comes into contact with the inclined groove 16, the screw portion 31 for loosening the terminal screw 30 and the screw hole 21 are formed.
When the screwing with the elastic projection piece 53 is released, the inclined groove 16
The auxiliary plate 50 is lifted upward by the elastic pressure on the terminal screw 30, and the terminal screw 30 is lifted.

Further, the elastic projecting pieces 53 of the auxiliary plate 50 are
Since it is formed on the inner surface of 52, the amount of metal plate used can be reduced.

[0020]

According to the present invention, there is provided a terminal device for an electric device, comprising a terminal plate having a vertical screw hole, a screw portion which is screwed into and removed from the screw hole in a vertical direction, a neck portion formed on an upper portion of the screw portion, and A terminal screw consisting of a screw head formed at the top of the neck,
A metal terminal which is loosely inserted into the neck portion of the terminal screw and is loosely fitted between the screw portion and the screw head to sandwich the connection conductor between the terminal plate and the terminal plate; A terminal device for an electric device comprising a base with a base mounted thereon, wherein an inclined groove extending upward is formed on both side walls of the base, at least two holding pieces for holding a neck portion of the terminal screw, and the holding piece. the continuously provided by bridging from one clamping piece to be substantially perpendicular with clamping pieces at the other clamping piece when co
Extraordinary on both sides piece surface contact with the side walls, the inclined groove when brought into surface contact with the continuously provided to vessel stand side walls on both sides piece to the sides pieces
And the elastic protruding pieces of the width dimension of the same width of the un-tilted groove, so mounted between the head and the losses of the terminal screws auxiliary plate having a, the terminal screw is released from the screwed terminal plate Occasionally, together with auxiliary plate elastic protruding piece becomes easy insertion of such floating up eg crimped terminal from the auxiliary plate is lifted upwardly terminal plate terminal screw by oppression the inclined grooves of the side walls,
Since the auxiliary plate is supported by the pedestal and holds the terminal screws by fitting the elastic projecting pieces into the inclined grooves on both side walls, the terminal screws can be reduced in number and the connection work can be simplified. Also, both sides piece
Is the same width as the width of the inclined groove when
The terminal screw is attached to the terminal board
Terminal screws perpendicular to each other with the screw holes
Positioning from two directions
It is easy to face the screw holes of the terminal plate. For this reason,
Easy screw re-tightening when the screw is removed from the terminal board
Has the effect of becoming

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a perspective view of one part of FIG.

FIG. 3 is an assembly view of one part of FIG. 1;

FIG. 4 is a front sectional view of FIG. 1;

FIG. 5 is a perspective view showing a second embodiment of the present invention.

FIG. 6 is a perspective view of one part of FIG. 5;

FIG. 7 is an assembly view of one part of FIG. 5;

FIG. 8 is a front sectional view of FIG. 5;

FIG. 9 is a longitudinal sectional view showing a conventional example.

[Explanation of symbols]

 10 Instrument base 11 Side walls 14 Inclined groove 20 Terminal plate 21 Screw hole 30 Terminal screw 31 Screw part 32 Neck part 34 Screw head 40 Gold 50 Auxiliary piece 51 Nipping piece 52 Side piece 53 Elastic protruding piece

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 1-1127171 (JP, U) JP-A 59-128176 (JP, U) JP-A 59-63969 (JP, U) (58) Survey Field (Int.Cl. ⁶ , DB name) H01R 4/38-4/46

Claims (1)

(57) [Scope of request for utility model registration] 1. A terminal plate provided with a screw hole in a vertical direction, a screw portion screwed into and removed from the screw hole in a vertical direction, a neck formed on an upper portion of the screw portion, and a screw head formed on an upper portion of the neck portion. A terminal screw consisting of a portion, a metal plate which is inserted into the neck of the terminal screw, is loosely fitted between the screw portion and the screw head, and clamps the connection conductor between the terminal plate and the terminal screw; A terminal device for electric equipment comprising a side wall and a base to which the terminal plate is attached, wherein at least two of the side walls of the base are formed with inclined grooves extending upward, and a neck of the terminal screw is sandwiched therebetween. a clamping piece, together with the provided continuously to the clamping pieces to span from one clamping piece to be substantially perpendicular with clamping pieces at the other clamping piece both
Both sides piece surface contact with the side wall, inclined facing the inclined grooves when this is continuously to both side piece contacting surfaces on both sides piece vessel stand side walls
The terminal device for electrical equipment, characterized in that mounted between the elastic protruding pieces of the width dimension and the same width dimension of Hasumizo, the head and the losses of the terminal screws auxiliary plate having a.