JP3349009B2 - Repeater in fire alarm system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a repeater in a fire alarm system.

[0002]

2. Description of the Related Art FIG. 5 is a plan view showing a conventional repeater 4.

In the conventional repeater 4, as shown in FIG. 5A, two screw stoppers 41 and 42 are provided on one side of a case 40, and two screw stoppers 43 and 44 are provided on opposite sides thereof. The screw holes 41h, 42h, 43h, and 44h are provided in the screw stoppers 41, 42, 43, and 44, respectively. Further, on the upper surface of the case 40, a terminal block 45 to which electric wires such as signal lines from a fire receiver (not shown) are connected.
And a terminal block 48 to which electric wires for various devices such as a district bell, a smoke prevention device and a fire detector (not shown) are connected. The terminal block 45 has terminals 45T1 and 45T.
2,... 45T6 are provided.
8T1, 48T2,... 48T6 are provided.

FIG. 5 (2) shows a state in which three repeaters 4 are arranged adjacent to each other. Each of the terminals 45T1, 45T2,... Terminal 45T of terminal block 45 in repeater 4
1, 45T2,..., 45T6, each signal line SL
4 are connected.

[0005]

In the above conventional example, when the repeaters 4 are arranged vertically in a row in FIG. 5 (2), screw stoppers 41-41 are provided on the left and right sides of the case 40 of the repeater 4.
It is necessary to provide a space for mounting the relay 44, and there is a problem that the size of a repeater panel that houses a plurality of repeaters becomes large.

A first object of the present invention is to provide a repeater which does not require a large repeater board for accommodating a plurality of repeaters by reducing a mounting space for the repeaters.

In the above-mentioned conventional example, when the screw stoppers 41 to 44 are to be stopped with screws, the screw stoppers 41 to 44 are not used.
It is necessary to perform the operation of aligning each of the screw holes 41h to 44h with the holes provided in the relay panel, and the operation of inserting and turning the screws through the screw holes 41h to 44h while maintaining this state. Therefore, there is a problem that the work of arranging the repeater 4 on the repeater board is complicated. Further, when removing the repeater 4, it is necessary to completely remove all four screws, and there is a problem that the work of removing the repeater is complicated.

[0008] A second object of the present invention is to provide a repeater in which the work of installing the repeater on the repeater board and the work of removing the repeater from the repeater board are easy.

In the above-mentioned conventional example, the terminals 45T1,..., 45T6 of one repeater 4 and the adjacent repeater 4
Signal line S connecting the terminals 45T1,.
There is a problem that L4 is complicated and it cannot be immediately determined whether or not each signal line SL4 is correctly wired.

A third object of the present invention is to provide a repeater which can immediately determine whether or not a signal line connecting repeaters installed on a repeater board is correctly wired.

[0011]

SUMMARY OF THE INVENTION The present invention relates to a repeater cable.
Extending from the bottom surface of the
Two screw stoppers provided on the side and from the bottom
It is extended and provided on the opposite side of the predetermined side.
At the position corresponding to the middle position between the two screw fasteners.
It has one screw stopper provided, and
When two repeaters are installed adjacent to each other, the first
Between the two screw fasteners in the repeater, two
The one screw stop in the repeater of the eye is located
It is a repeater in a fire alarm system.

Further, according to the present invention, the two screw stoppers and the one screw stopper have a U-shape having an opening, and the U-shaped opening directions of the three screw stoppers are the same. It was made.

Further, according to the present invention, the repeaters are connected to a signal line.
Therefore, in the repeater to be connected,
A first terminal block to which a signal line from a repeater to be connected is connected;
For various equipment such as district bells, smoke control equipment, fire detectors, etc.
And a second terminal block to which the electric wire is connected.
Terminal block is arranged toward the straightening duct, and one repeater
A terminal in the first terminal block provided in
Provided in a repeater located next to one repeater.
A signal line connecting the terminal of the first terminal block to
A plurality of terminals on the first terminal block in a direction orthogonal to the first terminal block;
Are arranged .

[0014]

The present invention extends from the bottom of the repeater case.
And provided on a predetermined side of the bottom surface.
With two screw stoppers and extending from the bottom,
The two screws are provided on opposite sides of the predetermined side.
One via provided at the position corresponding to the middle position of the fixture
And two adjacent repeaters on the repeater board
When installed as described above,
Between the two screw fasteners in the second repeater
Since the one screw stopper is located , the mounting space for the repeater is reduced, and there is no need to increase the size of the repeater panel that houses a plurality of repeaters.

Further, in the present invention, the two screw stoppers and the one screw stopper have a U-shape having an opening, and the U-shaped opening directions of the three screw stoppers are the same. Therefore, the work of installing the repeater on the repeater board and the work of removing the repeater from the repeater board are easy.

Further, according to the present invention, the repeaters are connected to a signal line.
Therefore, in the repeater to be connected,
A first terminal block to which a signal line from a repeater to be connected is connected;
For various equipment such as district bells, smoke control equipment, fire detectors, etc.
And a second terminal block to which the electric wire is connected.
Terminal block is arranged toward the straightening duct, and one repeater
A terminal in the first terminal block provided in
Provided in a repeater located next to one repeater.
A signal line connecting the terminal of the first terminal block to
A plurality of terminals on the first terminal block in a direction orthogonal to the first terminal block;
Are arranged, it is possible to immediately determine whether or not the signal lines connecting the repeaters installed on the repeater board are correctly wired.

[0017]

FIG. 1 is a view showing a repeater 1 according to an embodiment of the present invention. FIGS. 1 (1), (2) and (3) are a plan view, a front view and a right side view, respectively. FIG. FIG. 2 is a plan view showing the repeater 1, and is a diagram showing a state where three repeaters 1 are arranged on both sides of the straightening duct 19.

The repeater 1 has a rectangular parallelepiped case 10 and three screw stoppers 11, 1 extending from the bottom of the case 10.
2, 13; terminal blocks 15 and 16 provided on the upper surface of the case 10 and connected to electric wires such as a signal line from a fire receiver or an adjacent repeater (not shown); And a terminal block 18 to which electric wires for various devices such as fire detectors are connected.

The screw stoppers 11 and 12 are provided on a predetermined side of the case 10 of the repeater 1, and the screw stopper 13 is provided on the opposite side of the one side and the two screw stoppers 11 and 12 are provided.
Is provided at a position corresponding to the intermediate position of.

Then, the case 1 is
, Terminals 18T1, 18T2,... Provided on the terminal block 18 of each repeater 1 with the 0 terminal block 18 side facing.
.., A signal line SL1a extending from 18T16 to a connection device such as a fire detector (not shown) is drawn into the straightening duct 19. Each signal line SL1a in the straightening duct 19
Are connected to an external connecting device via a drawer of a repeater panel (not shown in detail).

The screw stoppers 11, 12, and 13 are provided with openings 11a, 12a, and 13a, respectively. The openings 11a, 12a, and 13a have a U shape wider than the diameter of the screw. The directions are the same as each other.

For example, the terminal block 15 has eleven unit terminals 15T1, 15T2,...
Each of the unit terminals 15T1, 15T2,..., 15T11 has an insertion port 15M1, 15M2,.
.., 15M11 are provided respectively, and the insertion openings 15M1,
An electric wire is inserted into each of 15M2,..., 15M11, the electric wire is sandwiched between the movable contact piece and the conductive member, and the distal end portion of the electric wire is locked by the elasticity of the movable contact piece, so that the conductive member is electrically connected to the conductive member. Connected. Insertion slot 15M1,
15M2,..., 15M11, slidable release buttons 15B1, 15B2,..., 15B11 are provided, and these release buttons 15B1, 15B2,.
When the 15B11 is pressed, the movable contact piece is pressed, the tip of the movable contact piece is released from the electric wire, the lock is released, and the electric wire can be pulled out from the insertion ports 15M1, 15M2,..., 15M11. I have.

Also, the terminal block 15 in one repeater 1
, 15T11 and the terminal 16T of the terminal block 16 in the adjacent repeater 1.
, 16T11 are connected by 11 signal lines SL1.

In FIG. 1, the terminal blocks 15, 1
6 are provided with 11 terminals each, and the terminal block 18 is provided with 16 terminals. However, in FIG. 2 and subsequent drawings, the description is simplified, and only 6 terminals are described in one terminal block. . The number of terminals installed on one terminal block is 6, 11
And any number other than 16 may be set.

Also, the terminal block 16 in one repeater 1
, A plurality of terminals 15T1, 15T2,... On the terminal block 15 of the repeater 1 in a direction orthogonal to the signal line SL1 connecting the terminal block 15 of the repeater 1 disposed next to the terminal block 15.
, 15T6 are arranged, and a plurality of terminals 16T on the terminal block 16 of the repeater 1 are arranged in a direction orthogonal to the signal line SL1.
1, 16T2,..., 16T6 are arranged.

Next, the operation of the above embodiment will be described.

In order to mount the repeater 1 on the repeater board, screws are lightly stopped in the holes of the repeater board corresponding to the openings 11a, 12a and 13a as screw holes, and the lightly fastened screws have openings. The position of the repeater 1 is set so that 11a, 12a, and 13a are engaged, and the side is slid to tighten the screw tightly. Then, the terminal 16T1 of the terminal block 16 in one repeater 1 and the repeater 1
, 16T6, and similarly, each of the terminals 16T2, 16T3,..., 16T6 and each of the terminals 15T2, 15T3,. . Also, the terminals 18T1, 18T of the terminal block 18 in one repeater 1
2,..., 18T6 are connected to the respective signal lines SL1a, and are wired into the alignment duct 19. FIG. 2 shows a state in which the three repeaters 1 are connected in a row in this manner, and the three repeaters 1 are also connected in a row on the opposite side of the straightening duct 19.

On the other hand, to remove the repeater 1, the signal line S
L1 and SL1a may be removed from each terminal, three screws may be loosened for one repeater 1, and the repeater 1 may be slid horizontally in FIG.

In the above embodiment, two screw stoppers 11 and 12 are provided on one side of the case 10 of the repeater 1,
Since the screw stopper 13 is provided at a position opposite to the one side and corresponding to an intermediate position between the two screw stoppers 11 and 12, relaying is more difficult than when the conventional repeaters 4 are arranged in a row. It is possible to reduce the mounting space of the container, and particularly to reduce the horizontal direction with respect to the vertical alignment duct 19, so that there is no need to increase the size of the repeater panel that houses a plurality of repeaters.

In the above-described embodiment, the screw stoppers 11, 12, and 13 have the U-shaped openings 11a, 12a, and 1a.
3a, and the opening directions are the same, so that the work of attaching and detaching the repeater 1 is easy. That is, when the repeater 1 is mounted on the repeater board, the screws are lightly fixed in the holes of the repeater board corresponding to the openings 11a, 12a, 13a, and the openings 11a, 12a, 13a are fixed to the screws.
Set the position of the repeater 1 so that is engaged, slide it to the side, and tighten the screw tightly. In this case, since the screw holes of the repeater 1 do not need to be aligned with the holes of the repeater board when the screws are first stopped, the work of mounting the repeater 1 is easy. Also, in order to remove the repeater 1, it is not necessary to completely remove the three screws, and if the screws are loosened, the repeater 1 can be slid sideways, whereby the repeater 1 can be removed from the repeater board. Therefore, it can be said that the work of removing the repeater 1 is easy.

Further, in the above embodiment, each of the terminals 16T1 to 16T6 of one repeater 1 and the terminals 15T1 to 15T1 of the repeater 1 disposed next to the terminals 16T1 to 16T6 are arranged.
Since each signal line SL1 connecting 15T6 is straight and parallel to each other, it is determined whether each signal line SL1 connecting repeaters 1 installed on the repeater board is correctly wired. You can judge immediately.

FIG. 3 is a plan view showing a repeater 2 according to another embodiment of the present invention. In FIG. 3A, the repeater 2 is
FIG. 3 (2) is a diagram showing a state in which three repeaters 2 are arranged in a row.

The repeater 2 is basically the same as the repeater 1, except that the screw stopper 23 is provided with a so-called Dharma-hole shaped screw hole 23h instead of a U-shaped opening. Is different from the repeater 1.

That is, the repeater 2 is a rectangular parallelepiped case 20.
And three screw stoppers 21, 22, and 23 extending from the bottom surface of the case 20, and terminal blocks 25, 26, and 28 provided on the upper surface of the case 20.

The screw stoppers 21 and 22 are provided on a predetermined side of the case 20 of the repeater 2, and the screw stopper 23 is provided on the opposite side of the one side and the two screw stoppers 21 and 22 are provided.
Is provided at a position corresponding to the intermediate position of.

The screw stoppers 21 and 22 are provided with openings 21a and 22a, respectively. The terminal block 25 is provided with terminals 25T1, 25T2,..., 25T6, and the terminal block 26 is provided with terminals 26T1, 26T2,.
26T6 is provided, and the terminal block 2 in one repeater 2 is provided.
, 25T6 and the terminal 26T of the terminal block 26 in the adjacent repeater 2.
, 26T6 are connected to each other by six signal lines SL2. Also, terminal block 2
8 are provided with terminals 28T1, 28T2,..., 28T6, and are connected to electric wires to connected devices.

The terminal block 26 of one repeater 2
, A plurality of terminals 25T1, 25T2,... On the terminal block 25 of the repeater 2 in a direction orthogonal to the signal line SL2 connecting the terminal block 25 and the terminal block 25 of the repeater 2 arranged next to the terminal block 25.
, 25T6 are arranged, and a plurality of terminals 26T on the terminal block 26 of the repeater 2 are arranged in a direction orthogonal to the signal line SL2.
1, 26T2,..., 26T6 are arranged.

Also in the repeater 2, the mounting space for the repeaters can be made smaller than in the case where the conventional repeaters 4 are arranged in a row, so that the repeater board for accommodating a plurality of repeaters can be made larger. No need to do. Further, in the repeater 2, the terminals 26T1 to 26T
Each of the signal lines SL2 connecting each of the T6 and each of the terminals 25T1 to 25T6 of the repeater 2 disposed next to the T6 is arranged in a straight line and is arranged in parallel with each other. It can be immediately determined whether or not each signal line SL2 connecting the repeaters 2 installed in each other is correctly wired. Further, in the repeater 2, the screw hole 23h in the shape of a daruma hole can be adjusted to a shift screw.

FIG. 4 is a plan view showing a repeater 3 according to another embodiment of the present invention. In FIG. 4A, the repeater 3 is
FIG. 4B shows a state in which three repeaters 3 are arranged in a row.

The repeater 3 has a rectangular parallelepiped case 30 and four screw stoppers 31, 3 extending from the bottom of the case 30.
2, 33, and 34, and terminal blocks 35, 36, and 38 provided on the upper surface of the case 30. Screw stopper 3
1, 32, 33, 34 have openings 31a, 32, respectively.
a, 33a and 34a are provided. Also, terminal block 3
5 are provided with terminals 35T1, 35T2,..., 35T6, and on the terminal block 36, terminals 36T1, 36T2,.
, 36T6 are provided, and each of the terminals 35T1, 35T2,..., 35T6 of the terminal block 35 in one repeater 3 and the terminal 36 of the terminal block 36 in the adjacent repeater 3
Each of T1, 36T2,..., 36T6 is connected by six signal lines SL3. Also, the terminal block 38 is provided with terminals 38T1, 38T2,.

Further, the terminal block 36 in one repeater 3
And a plurality of terminals 35T1, 35T2,... On the terminal block 35 of the repeater 3 in a direction orthogonal to the signal line SL3 connecting the terminal block 35 of the repeater 3 and the terminal block 35 of the repeater 3.
, 35T6 are arranged, and a plurality of terminals 36T on the terminal block 36 of the repeater 3 are arranged in a direction orthogonal to the signal line SL3.
, 36T6 are arranged.

Also in the repeater 3, each of the terminals 36T1 to 36T6 in one repeater 3 and the terminals 35T1 to 35T6 in the repeater 3 arranged next to the terminals 36T1 to 36T6.
Are connected in a straight line,
In addition, since they are wired in parallel with each other, it can be immediately determined whether or not the signal line SL3 connecting the repeaters 3 installed on the repeater board is correctly wired. In the repeater 3, remove the screws of the screw stoppers 31, 32, or
By removing the screws of the screw stoppers 33 and 34, the repeater 3 can be shifted and the repeater 3 can be removed from the repeater board.

In the repeater 1, the terminal blocks 15, 16 are
One terminal block may be used in common. That is, instead of providing the terminal blocks 15 and 16 in one repeater 1, for example, only the terminal block 15 may be provided. Similarly,
In the repeater 2, the terminal blocks 25 and 26 may be shared by one terminal block, and in the repeater 3, the terminal blocks 35 and 36 may be shared by one terminal block.

[0044]

According to the first and second aspects of the present invention, the mounting space for the repeater can be reduced .
Therefore, the repeater panel that houses multiple repeaters is smaller than before.
This has the effect of reducing the size .

According to the third to fifth aspects of the present invention, the relay
In a repeater that connects devices via signal lines, it is possible to immediately determine whether or not a signal line connecting repeaters installed on a repeater board is correctly wired.

[Brief description of the drawings]

FIG. 1 is a plan view, a front view, and a right side view showing a repeater 1 according to an embodiment of the present invention.

FIG. 2 is a plan view showing the repeater 1. FIG.

FIG. 3 is a plan view showing a repeater 2 according to another embodiment of the present invention.

FIG. 4 is a plan view showing a repeater 3 according to another embodiment of the present invention.

FIG. 5 is a plan view showing a conventional repeater 4.

[Explanation of symbols]

 1, 2, 3 ... repeater, 10, 20, 30 ... case, 11 to 13, 21 to 23, 31 to 33 ... screw stopper, 11a to 13a, 21a, 22a ... opening, 23h ... screw hole, 15 , 16, 25, 26, 35, 36 ... terminal block, SL1, SL2, SL3 ... signal lines.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-44792 (JP, U) JP-A 7-10467 (JP, U) JP-A 4-15796 (JP, U) JP-A 61- 179643 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G08B 17/00 H05K 5/02

Claims (5)

(57) [Claims] 1. When extended from the bottom surface of a repeater case,
And two screw stoppers provided on a predetermined side of the bottom surface ; both extending from the bottom surface and provided on opposite sides of the predetermined side and corresponding to an intermediate position between the two screw stoppers. A screw stop provided at a position, and two repeaters are installed adjacently on a repeater board.
The two screws in the first repeater
Between the stops, the one in the second repeater
A repeater in a fire alarm system, wherein a screw stopper is located . 2. The U-shaped opening direction of the three screw fasteners according to claim 1, wherein the two screw fasteners and the one screw fastener are U-shaped having openings. Characterized in that they are identical to each other. 3. When connecting repeaters with a signal line.
At the relay, signal lines from the fire receiver or an adjacent relay are connected.
The first terminal block to be installed; district bells, smoke control equipment, fire detection
Terminal block to which electric wires for various devices such as vessels are connected
And the second terminal block is disposed facing the straightening duct.
And the first terminal block provided in one repeater
And a terminal arranged next to the one repeater.
A terminal on the first terminal block provided on the relay;
The first terminal block in a direction orthogonal to the signal line connecting
Characterized in that a plurality of terminals are arranged
Repeater in fire alarm system . 4. The repeater according to claim 3, wherein two screw stoppers are provided on a predetermined side of the case of the repeater; and provided on opposite sides of the predetermined one side and correspond to an intermediate position between the two screw stoppers. And a single screw stop provided at a position where the relay is located. 5. The U-shaped opening direction of the three screw stoppers according to claim 4, wherein the two screw stoppers and the one screw stopper are U-shaped having openings. Characterized in that they are identical to each other.