JP2570189Y2 - Terminal cover for terminal block - Google Patents

Description

[Detailed description of the invention]

[0001]

In the present invention, the terminal of a signal line or the like is mounted on a terminal block connected directly or via a terminal to display a terminal number and prevent electric shock to a plurality of external connection portions of the terminal block. And a terminal cover for a terminal block used for protection.

[0002]

2. Description of the Related Art FIG. 6 shows a general terminal block (1) particularly suitable for mounting on a printed circuit board. The terminal block (2) is used to connect a terminal or an end of an electric wire with a terminal screw (2). The required number of external connection parts (3) are arranged in a row at the same pitch, separated from each other by a barrier (4),
In addition, it is configured to be provided in a two-tiered manner in an inconsistent manner.

[0003] A pair of mounting holes (6) are formed in the terminal block at the upper portions of both end plates (5), and two terminal covers (7) are provided, two from each end of the terminal cover (7). The projecting attachment projection (8) is fitted into the attachment hole (6) and attached to the terminal block (1). As shown in FIGS. 7A and 7B showing a bottom view and a cut side view, respectively, of the terminal cover (7), a concave portion (9) into which a later-described name plate is fitted is formed on the back surface side. In addition, a plurality of portions (three portions are shown) on the lower surface of the concave portion (9) facing each other.
And a locking projection (10) is protruded from the bottom surface of the concave portion (9) with a predetermined gap, and the terminal number of the external connection portion (3) is changed as shown by a dashed line in FIG. Name plate to write (1
1) is inserted into the recess (10) and the locking projection (10)
Is held so as not to fall off.

At the time of connecting the signal line, as shown in FIG. 6, only one of the opposite mounting projections (8) on both sides of the terminal cover (7) is fitted into the mounting hole (6). Hold the table (1) in an upright position, and place the name plate (1
The connection work is performed while viewing the display of 1), and after the connection work is completed, the connection protrusions (8) on the other side on both sides are fitted into the mounting holes (8) by rotating as shown by the arrows in FIG. This terminal cover (7) conceals each external connection part (3) to prevent trouble such as electric shock due to touching the external connection part (3).

[0005]

However, the above-mentioned terminal cover (7) has the following various problems. That is, the terminal block (1) may be deformed so that the number of poles of the external connection section (3) becomes a desired number by means such as cutting or connecting the terminal block, and in this case, the length is reduced. change. On the other hand, since the terminal cover (7) is manufactured by integral molding of a synthetic resin, each time the number of poles of the terminal block (1) changes, a new mold having a corresponding size must be manufactured as described above. This has become a factor of high cost.

Further, each time the name plate (11) is inserted into or removed from the terminal cover (7), the terminal cover (7) must be detached from the terminal block (1) each time. The attachment and detachment requires a complicated operation of bending the end plate (5) of the terminal block (1) outward and engaging and disengaging the locking projection (8) with the mounting hole (6). Further, when inserting the name plate (11), as shown in FIG. 8, the name plate (11) is adjusted with a finger from the back side of the terminal cover (7) so that the name plate (11) does not catch on the locking projection (10). However, since it is necessary to perform a troublesome operation of inserting the nameplate (11) while inserting the nameplate (11) into and from the terminal cover (7), it takes much time.

Therefore, the present invention can be applied to terminal blocks having different numbers of poles, that is, lengths, without increasing the cost, and a terminal board for inserting and removing a name plate can be performed very easily without removing the terminal plate from the terminal block. It is a technical object to provide a terminal cover.

[0008]

According to the present invention, a terminal cover for a terminal block is constituted as follows as a technical means for achieving the above-mentioned object. That is, a plurality of external connection portions for connecting the terminal or the end portion of the electric wire are engaged in a state of being arranged in a row and being bridged between both end plates of the integrated terminal block, and the external connection portions are connected to each other. In a terminal cover for a terminal block, which faces each other, a pair of holding pieces extending integrally in a substantially U-shape from one side to the other side in the width direction of the rectangular plate-shaped cover body along the both sides. A cover body in which an insertion groove is formed, and a strip-like shape in which terminal numbers of the external connection portions are written, and both side edges in a longitudinal direction are inserted into the respective insertion grooves, and the cover body portion is formed. And a mounting plate which is inserted into the insertion groove on one side of both ends of a rod-shaped connecting rod having substantially the same length as the width of the cover main body, and both ends of the connecting rod. On the other surface side, is fitted to the mounting portion of the end plate of the terminal block. Mounting projections each are configured as characterized by comprising a pair of cover end portion extending integrally.

The mounting plate is inserted into the insertion groove of the connecting rod of the cover end, and the name plate is inserted and removed between the cover and the cover body when the cover end is mounted on the cover body. It is preferable that a tapered surface that forms a possible gap is formed, and a guide step that guides the name plate to the insertion groove is formed on the mounting protrusion so as to be continuous with the tapered surface.

[0010]

The cover body has a shape in which the holding pieces are extended in a substantially U-shaped curved state on one surface side from both sides in the width direction of the rectangular plate-shaped cover body, and thus can be manufactured by extrusion molding. . Therefore, at the time of molding, it is possible to manufacture a cover main body having an arbitrary length that can accommodate terminal blocks of various lengths by merely cutting the terminal body in accordance with the length of the terminal block to be attached. Since there is no need to change the mold, the cost does not increase.

[0011] By inserting a pair of mounting projections into the insertion grooves by press-fitting the cover end portions to both end portions of the cover body portion, both side edges are inserted into the insertion grooves on both sides of the cover body portion. The written name plate is held by a pair of cover end portions. Then, a taper surface is formed on the connecting rod of the cover end portion to form a gap between the connecting rod and the cover body of the cover main body, through which a name plate can be inserted and removed, and the name plate is formed on the mounting projection of the cover end portion. The guide step leading to the insertion groove is formed continuously with the tapered surface, after the pair of cover ends are attached to both ends of the cover body, the name plate is attached to the gap between the cover body and the connecting rod. When inserted into
The name plate slides on the tapered surface, and both side edges of the name plate are smoothly guided to the insertion groove via the guide step.

An insertion groove is formed along the entire length of the cover body in the longitudinal direction so that the nameplate can be slid smoothly without being caught or the like, and a gap exists at both ends for inserting and removing the nameplate and a tapered surface. The guide plate can be smoothly and easily inserted and removed by the guide step, so that the name plate can be easily and quickly inserted and removed without removing the terminal plate from the terminal block.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an exploded perspective view of one embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a bottom view thereof. In these figures, the terminal cover of the present invention includes a cover body (12) and the cover body (1).
2) It is composed of a pair of carver end portions (13) fitted to both ends, respectively, and an existing name plate (11).

The cover body (12) is made of a transparent resin and has a rectangular plate-like cover (14) having a length slightly shorter than the length of the terminal block, and a width direction, that is, a short direction of the cover (14). A shape integrally provided with a pair of holding pieces (16) extending from both sides of each side to one surface side into a substantially U-shaped curved state to form insertion grooves (15) along the both sides, respectively. It has become. Inevitably from this shape, the cover body (12) is manufactured by extrusion molding with a synthetic resin.

The pair of cover end portions (13) have the same shape and are rod-shaped having a length substantially equal to the width of the cover body (12), and contact portions (18) are formed at both ends thereof. A connecting rod (17) and a pair of mounting projections (19) each having a shape having an outer shape fitted into the insertion groove (15) and projecting from one surface side of each of the pair of abutting portions (18).
And a pair of mounting projections (20), each having a pin shape to be fitted into the mounting hole of the end plate of the terminal block and projecting from the other surface side of each of the pair of contact portions (18). The shape is prepared for. Inevitably from this shape, the cover end portion (13) is manufactured by injection molding using a synthetic resin.

The cover end portion (13) has a tapered surface (21) formed on the connecting rod (17) as shown in FIGS. Continuously from both ends of the tapered surface (21), the mounting projections (1
A guide step (22) is formed at 9). Insert the mounting projection (19) into the insertion groove (15) and insert the cover body (1).
When attached to 2), the connecting rod (17) and the cover (1)
4), a gap is formed by the tapered surface (21) so that the above-mentioned name plate (11) can be inserted and withdrawn. Therefore, when the strip-shaped name plate (11) is inserted along the tapered surface (21) in a state where the cover end portion (13) is attached to the cover main body portion (12), the longitudinal direction of the name plate (11) is changed. Are guided smoothly to the insertion groove (15) via the guide step (22).

In this terminal cover, since the cover main body (12) can be manufactured by extrusion molding as described above, it is necessary to cut the terminal cover into different lengths depending on the number of poles of the terminal block to be attached at the time of molding. Thereby, the cover main body (12) can be set to an arbitrary length, and the mold is not changed unlike the injection molding, so that it is possible to cope with terminal blocks of various lengths without increasing the cost.

At both ends of the cover body (12), a pair of mounting projections (19) are press-fitted into the insertion grooves (15), and the cover end (13) is mounted. Thereafter, when the name plate (11) is inserted into the space between the cover body (14) and the connecting rod (17) as shown by an arrow in FIG. 4 (a), the name plate (11) is inserted as shown in FIG. 4 (b). (11) is tapered surface (2
1), the both side edges of the name plate (11) slide through the guide step (22) of the mounting projection (19), and the guide body (1).
It is guided smoothly into the insertion groove (15) of 2). Then, when the entire name plate (11) is inserted, as shown in FIG.
The both side edges in the longitudinal direction of the name plate (11) are guide step portions (2).
2) and the end of the holding piece (16), and as shown in FIG. 4 (c), it is held by the tapered surface (21) without easily coming off.

In addition, insertion grooves (15) are formed at both side edges along the entire length of the cover body (12) in the longitudinal direction so that the name plate (11) can slide smoothly without being caught or the like. There is a gap at both ends for inserting and removing the nameplate (11), and the tapered surface (21) and the guide step (22) guide the smooth insertion and removal of the nameplate (11). At this time, only one of the mounting projections (20) on both sides is removed from the mounting hole of the end plate of the terminal block, and the other mounting projection (20) on each side is rotated about a fulcrum, as shown in FIG. The name plate (11) can be easily and quickly inserted and removed with the terminal cover standing on the terminal block. In addition, the cover end (1
Since 3) is separate from the cover body (12), there is an advantage that the shape such as the tapered surface (21) can be easily manufactured by injection molding.

[0020]

As described above, according to the terminal cover for a terminal block of the present invention, the cover body is separated into a cover body and a pair of cover ends attached to both ends thereof, and the cover body is formed in a rectangular plate shape. The holding pieces are formed in a shape of a substantially U-shaped curve on both sides in the width direction of the cover body, so that the cover body can be manufactured by extrusion molding and corresponds to the length of the terminal block at the time of molding. By cutting the cover body, it is possible to manufacture a cover main body having a length that can accommodate terminal blocks of various lengths without increasing the cost. In addition, since the insertion groove is formed along the entire length of the cover body in the longitudinal direction, the name plate can be smoothly inserted and removed without being caught or the like. A gap is formed between the rod and the cover body of the cover body so that the nameplate can be inserted and removed, and a guide step that guides the nameplate to the insertion groove is formed continuously on the tapered surface at the mounting projection of the cover end. With this configuration, the nameplate can be easily and smoothly inserted and removed with the pair of cover ends attached to the cover body, so that the nameplate can be quickly inserted and removed without removing it from the terminal block. it can.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a bottom view of the same.

FIGS. 4A to 4C are longitudinal sectional views sequentially showing states in which a name plate is inserted.

FIG. 5 is a cutaway side view of the same.

FIG. 6 is a perspective view showing a state in which a conventional terminal cover is attached to a terminal block.

FIGS. 7A and 7B are a bottom view and a cut side view, respectively.

FIG. 8 is a perspective view showing a state where a name plate is inserted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Name plate 12 Cover main body 13 Cover end part 14 Cover body 15 Insertion groove 16 Holding piece 17 Connecting rod 19 Mounting protrusion 20 Mounting protrusion 21 Tapered surface 22 Guide step

Claims (2)

(57) [Scope of request for utility model registration] A plurality of external connecting portions for connecting terminals or wire end portions are engaged in a state of being arranged in a row and being bridged between both end plates of an integrated terminal block. In the terminal block terminal cover facing the external connection portion, a pair of holding pieces extending substantially in a U-shape from one side to the other side in the width direction of the rectangular plate-shaped cover body are provided on the both sides. The cover main body portion in which the insertion grooves are formed along, and a strip-like shape in which the terminal numbers of the external connection portions are written, and both side edges in the longitudinal direction are inserted into the respective insertion grooves, and A name plate held by the cover body, and mounting protrusions respectively fitted into the insertion grooves on one surface side of both ends of a rod-shaped connection rod having a length substantially equal to the width of the cover body. On the other side of the both ends of the A terminal cover for a terminal block, wherein the fitting projections to be fitted each comprise a pair of cover end parts integrally projecting therefrom. 2. When the cover projection is inserted into the insertion groove of the connecting rod of the cover end portion, and the cover end portion is attached to the cover main body portion, the name plate is inserted and removed between the cover body and the cover body. A tapered surface which forms a gap that can be formed is formed, and a guide step portion for guiding the name plate to the insertion groove is formed on the mounting protrusion so as to be continuous with the tapered surface. Terminal cover for terminal block described in "."