JP2001050970A - Detection plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a detection plate which can be attached to a track with a smaller number of bolts, without requiring nuts, and can be adjusted easily for position. SOLUTION: A detecting plate 18 for photoelectric sensor is attached to a longitudinal dovetail groove 17 of a track 11. A main body 18A of the plate 18 has a square or rectangular shape and rising pieces 18B are respectively formed on the facing side edges of the main body 18A. The head section of each rising piece 18B has a pawl section 18D, having chamfered sections 18C on both side in the side view of the plate 18, and the main body 18A has a female screw 18E formed in the central part of the main body 18A on the line connecting the rising pieces 18B to each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detection plate attached to a dovetail groove formed in a longitudinal direction of a track for detecting a speed and a position of a carrier traveling on the track.

[0002]

2. Description of the Related Art FIG. 7 is a side view showing a state in which a conventional detecting plate 1 for a photoelectric sensor is attached to a track 2. FIG. FIG. 8 is a bottom view of FIG. As shown in FIGS. 7 and 8,
The detection plate 1 for a photoelectric sensor is a substantially rectangular plate-like body, and two mounting bolt through holes (not shown) are formed at positions parallel to one side edge thereof.

In order to mount a conventional detection plate 1 for a photoelectric sensor on a track 2, as shown in FIGS.
The mounting nut 4 is inserted from the end of the track 2 into the dovetail groove 3 formed in the longitudinal direction of the above, and the positions of the mounting bolt through hole of the detection plate 1 for the photoelectric sensor and the mounting nut 4 are aligned. The detection bolt 1 for the photoelectric sensor is attached to the track 2 by screwing the bolt 5 for use to the nut 4 for attachment.

[0004]

However, in the conventional detection plate 1 for a photoelectric sensor, two mounting nuts and two mounting nuts are required to mount one photoelectric sensor detection plate 1 in order to prevent its rotation. Bolt 5 was required. For this reason, the detection plate 1 for a photoelectric sensor is provided with two mounting bolt through-holes, and the dovetail groove 3 provided in the track 2 in accordance with the pitch of the two mounting bolt through-holes. It was necessary to adjust the position of the mounting nut 4 inserted in the nut. For this reason, when the transport path is long and there are many stop points, the number of the photoelectric sensor detection plates 1 becomes very large, and it takes a lot of time to mount the photoelectric sensor detection plates 1 and adjust the position. There was a problem.

Therefore, the present invention solves the above-mentioned problems of the conventional detection plate for a photoelectric sensor, does not require a mounting nut for mounting on a track, and has a small number of mounting bolts. An object of the present invention is to provide a detection plate whose position can be easily adjusted.

[0006]

In order to achieve the above object, a detection plate according to the present invention is a detection plate attached to a dovetail groove formed in a longitudinal direction of a track, wherein a main body of the detection plate comprises: The detection plate has a substantially square or rectangular shape, and a rising piece is formed on each of opposite side edges of the main body of the detection plate, and a head of the rising piece has a claw portion having a chamfered portion formed on both sides when viewed from the side. A female screw is formed at a position on a line connecting the rising pieces of the main body of the detection plate.

[0007]

[Function] The claw of the detection plate for the photoelectric sensor is inserted into the dovetail groove.
Insert from the end of the track or the dovetail opening in the track. When the photoelectric sensor detection plate is in a horizontal state, the lower surface of the claw portion of the photoelectric sensor detection plate is locked around the opening in the dovetail groove of the track. In this state, the mounting bolts are provided on the main body of the detection plate for the photoelectric sensor and are screwed into the screws, and then tightened, the ends of the mounting bolts hit the upper surface of the dovetail groove, and the mounting bolts are further tightened. The detection plate for the photoelectric sensor is pushed down by the reaction force. As a result, the lower surface of the claw portion is pressed against the upper surface around the opening in the dovetail groove of the track, and the detection plate for the photoelectric sensor is attached to the track.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described based on embodiments with reference to the drawings. FIG. 1 is a perspective view showing a state where a carrier having a photoelectric sensor is mounted on a track on which a detection plate for a photoelectric sensor according to an embodiment of the present invention is mounted. FIG. 2 is an enlarged perspective view showing the inside of the circle of FIG.

As shown in FIG. 1, a carrier 10 has a track 11
It is placed on the top and runs on the track 11. The carrier 10 includes a carrier 13 on which a drive motor 12 is mounted, and a carrier 13.
And a main body 14 attached below. The rotational force of the drive motor 12 drives the drive wheels 15 via the speed reducer, and the carrier 10 travels on the track 11. A photoelectric sensor 16 is attached to the main body 14 of the transport vehicle 10.

On the other hand, the track 11 has an upper flange 11A and a lower flange 11B.
A and the lower flange 11B have two dovetail grooves 17 respectively.
Are formed in the longitudinal direction of the track 11. As shown in FIGS. 1 and 2, a detection plate 18 for a photoelectric sensor is provided with a mounting bolt 19 in a dovetail groove 17 on the left side of the lower flange 11 </ b> B.
Attached by.

When the carrier 10 travels on the track 11,
The photoelectric sensor 16 attached to the carrier 10 is connected to the photoelectric sensor detection plate 1 attached to the track 11.
By passing through eight locations, the speed and position of the carrier traveling on the track are detected.

Next, a photoelectric sensor detecting plate 18 according to an embodiment of the present invention will be described. FIG. 3 is a perspective view of the photoelectric sensor detection plate 18. 4 (A) is a plan view of the photoelectric sensor detection plate 18, FIG. 4 (B) is a front view thereof, and FIG. 4 (C) is a side view thereof. Figures 3 and 4
As shown in FIGS. 4A, 4B and 4C, the photoelectric sensor detection plate 18 has the following structure. The main body 18A of the photoelectric sensor detection plate 18 has a substantially square or rectangular shape. Standing pieces 18B are formed on opposite side edges of the main body 18A of the photoelectric sensor detection plate 18, respectively. The head of the rising piece 18B has a claw portion 18D formed with a chamfered portion 18C on both sides as viewed from the side. The claw portion 18D can be rotated in the dovetail groove 17 of the track 11 by forming chamfered portions 18C on both sides, as described later. Further, a female screw 18E is formed at a position substantially at the center of the main body 18A of the detection plate 18 for a photoelectric sensor and on a line connecting the rising pieces 18B.

Next, how to mount the photoelectric sensor detection plate 18 on the track 11 will be described. The claw 18D of the photoelectric sensor detection plate 18 is inserted into the dovetail groove 17,
It is inserted from the end of the track 11 or the opening of the dovetail groove 17 of the track 11. When the photoelectric sensor detection plate 18 is in a horizontal state, the claw portions 18D of the photoelectric sensor detection plate 18 are provided.
Is locked around the opening in the dovetail groove 17 of the track 11. In this state, the mounting bolt 19 is provided on the main body 18A of the detection plate 18 for a photoelectric sensor, and is screwed into the screw 18E. When the bolt 19 is tightened, the photoelectric sensor detection plate 18 is pushed downward by the reaction force. Accordingly, the lower surface of the claw portion 18D is pressed against the upper surface around the opening in the dovetail groove 17 of the track 11, and the detection plate 18 for the photoelectric sensor is moved to the track 11
Attached to. FIG. 5 shows a state where the photoelectric sensor detection plate 18 is attached to the track 11. The claw portion 18D of the photoelectric sensor detection plate 18
The procedure for inserting the wire into the dovetail groove 17 from the opening of the dovetail groove 17 of the track 11 will be described later.

The detection plate 18 for the photoelectric sensor can be mounted from a position other than the end of the track 11. FIG. 6 is an explanatory diagram illustrating an attachment procedure for attaching the photoelectric sensor detection plate 18 to the track 11.
The mounting procedure will be described below with reference to FIG.

As described above, the claw portion 18D of the photoelectric sensor detection plate 18 has a shape such that it can rotate in the dovetail groove 17 of the track 11. First, as shown in FIG. 6A, the claw portion 18D of the detection plate 18 for a photoelectric sensor is inserted into the dovetail groove 17 of the track 11 from an obliquely downward direction through the opening of the dovetail groove 17. Next, the photoelectric sensor detection plate 18 is rotated clockwise in the order shown in FIGS. 6B, 6C, and 6D. At the position shown in FIG. 6D, the photoelectric sensor detection plate 18 is substantially horizontal, and the claw portion 1 of the photoelectric sensor detection plate 18 is provided.
The lower surface of 8D is locked around the opening in the dovetail groove 17 of the track 11. In this state, as shown in FIG. 6 (e), the mounting bolt 19 is screwed to the screw 18 </ b> E provided on the main body 18 </ b> A of the photoelectric sensor detection plate 18, and the photoelectric sensor detection plate 18 is attached to the track 11. .

According to the embodiment, no mounting nut is required to mount the photoelectric sensor detection plate 18 on the track 11, and one mounting bolt is used to mount one photoelectric sensor detection plate 18. You only need to use 19. Further, since the mounting nut is not required for mounting the photoelectric sensor detection plate 18 on the track 11, the position adjustment of the mounting nut is unnecessary as in the related art, and the time required for the installation adjustment of the transfer device is reduced. can do. Further, the detection plate 18 for the photoelectric sensor is
It can be attached even from an intermediate part other than the end face of.

In the above embodiment, the female thread 18E is
One detection plate is formed substantially at the center of the main body 18A of the photoelectric sensor detection plate 18 and at a position on a line connecting the rising pieces 18B. However, the detection plate of the present invention is not limited to this. May be formed at positions on a line connecting the rising pieces 18B of the main body 18A of the detection plate 18 for a photoelectric sensor.

In the above embodiment, the detection plate for the photoelectric sensor mounted on the track is described.
The detection plate of the present invention is not limited to a detection plate for a photoelectric sensor.

Further, the detection plate of the present invention can be applied to an installation on a track on which any transporting vehicle such as an overhead transporting vehicle or a floor transporting vehicle traveling in a suspended state overhead. .

[0020]

The present invention has the following effects. (1) No mounting nut is required to mount the detection plate on the track, and at least one mounting bolt is required to mount one detection plate. (2) Since the mounting nut is not required for mounting the detection plate on the track, it is not necessary to adjust the position of the mounting nut as in the related art, and the time required for adjusting the installation of the transfer device can be reduced. . (3) The detection plate can be attached even from an intermediate portion other than the end face of the track.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state where a carrier having a photoelectric sensor mounted thereon is mounted on a track on which a detection plate for a photoelectric sensor according to an embodiment of the present invention is mounted.

FIG. 2 is an enlarged perspective view showing the inside of a circle of FIG. 1;

FIG. 3 is a perspective view of a detection plate for a photoelectric sensor according to an embodiment of the present invention.

4A and 4B show a detection plate for a photoelectric sensor according to an embodiment of the present invention, wherein FIG. 4A is a plan view, FIG. 4B is a front view, and FIG. 4C is a side view.

FIG. 5 is a side view showing a state where the detection plate for a photoelectric sensor according to the embodiment of the present invention is mounted on a track.

FIG. 6 is an explanatory diagram illustrating an attachment procedure for attaching the photoelectric sensor detection plate of the embodiment of the present invention to a track.

FIG. 7 is a side view showing a state where a conventional detection plate for a photoelectric sensor is attached to a track.

FIG. 8 is a bottom view of FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Carrier 11 ... Track 12 ... Driving motor 13 ... Carrier 14 ... Body 15 ... Driving wheel 16 ... Photoelectric sensor 17 ... Dovetail 18 ... Photoelectric Sensor detection plate 18A ・ ・ ・ Main body 18B ・ ・ ・ Rising piece 18C ・ ・ ・ Chamfered part 18D ・ ・ ・ Claw part 18E ・ ・ ・ Female thread 19 ・ ・ ・ Mounting bolt

Claims (1)

[Claims] 1. A detection plate attached to a dovetail groove formed in a longitudinal direction of a track, wherein a main body of the detection plate has a substantially square or rectangular shape, and the main body of the detection plate faces the detection plate. A rising piece is formed on each side edge, and the head of the rising piece has a claw portion with a chamfer formed on both sides as viewed from the side, and at a position on a line connecting the rising pieces of the main body of the detection plate. A detection plate having a female thread formed thereon.