JPH0215025Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a groove with an automatic opening/closing lid.

In a flow assembly work line where articles such as automobile bodies are continuously conveyed by conveyors, etc.
A device with a traveling function (hereinafter simply referred to as a traveling device), which uses the base plate of a workbench on which a worker can ride as a floor, and straddles above and below the floor using this floor as a boundary, transports parts to be assembled on the article. There is a process used for this process, and the workbench of such process is provided with a groove in the direction of travel of the traveling device. However, if this groove remains open, work tools and assembly parts may fall into the groove, or workers may step into it, so care should be taken to ensure that the movement of the traveling device is not obstructed. The idea is to close the grooves in the floor. The means for closing this groove are: (1) a rubber plate with a width of approximately 1/2 of the groove width and placed along the groove on both sides of the groove; or (2) a subdivided plate-like material. Connect both ends with pins so that they overlap alternately in the vertical direction, place the cap on the groove from above the floor, and connect one end to the boundary between the upper and lower floors of the equipment, and cover the groove as the equipment moves. There are movable groove lids (used for loop-shaped devices), etc.

However, in the above-mentioned groove cover,
When a worker frequently walks on the floor, in the case of (1), the weight of the worker on top of the worker cannot be supported, and the worker's foot gets caught in the groove and falls, and in the case of (2), the worker is unable to support the weight of the worker on top of the floor. There was a risk of tripping over the multiple mounting boards and falling, and neither of these methods sufficiently guaranteed work safety, posing a major problem in terms of safety and work efficiency.

The present invention is intended to solve the above problems.

The purpose is to provide a workbench base plate with a groove cover that automatically opens and closes in conjunction with the movement of the traveling device.

In other words, the automatic opening/closing lid groove of the present invention is provided for running a device with a traveling function that spans above and below the floor with the floorboard as a boundary, and is automatically opened and closed as the device with a traveling function runs. A groove with a lid, which includes: 1 a) a lid main body of a size and appropriate length capable of closing the groove; b located under the floorboard, perpendicular to the longitudinal direction of the groove and parallel to the floorboard; c. a support rod whose tip is connected to the lid main body in a manner such that c. a lid; 2. a shaft with an appropriate number of guide rollers disposed on the lower surface of the floorboard along the groove, perpendicular to the floorboard and so that the support rod is held between the guide rollers; 3. the rear end of the support rod means for pressing the lid main body attached to the groove in the direction of the groove; The present invention is characterized by comprising a guide rod attached to an underfloor portion of the device with traveling function so as to actuate the lid main body by coming into contact with the bar from one end and then separating from the other end.

The operation of the present invention will be explained below.

The groove with an automatic opening/closing lid uses the base plate of a workbench, etc. as a floor plate.
It is installed directly under the floor along the groove of the floor, and its structure consists of a movable cover that operates perpendicularly to the longitudinal direction of the groove to open and close the groove, and a cover body and a support rod. The support rod is held between guide rollers inserted into the suspended shaft, and a spring fixed to the floor is connected to the rear end of the support rod of the movable lid.
Usually, the force of the spring causes the movable lid to close the groove. Further, a bar is attached to the movable lid in a vertical downward direction to a support rod held between the guide rollers.

On the other hand, on the traveling device side, there is a traveling device on the top surface of the traveling device body under the floor of the workbench, etc., which is parallel to the traveling direction of the traveling device and symmetrical about the groove of the workbench, etc., with both ends bent inward. Two guide rods with a length slightly longer than the length of the movable lid are provided so that the bar of the movable lid falls within the movement locus of the guide rods.

With the above configuration, as the traveling device moves forward, the guide rod provided on the traveling device comes into contact with the bar of the movable lid located forward in the traveling direction, and the movable lid is pushed open. Conversely, the movable lid automatically closes due to the force of the spring after it has passed the traveling device. Therefore, the length of the movable lid is optimally set depending on the length of the traveling device. Similarly, the width, shape, number, arrangement, etc. of the movable lid etc. can be selected according to the work content. Further, the movable lid and the guide rod may be provided on both sides of the groove or on one side.

As a power source for moving the movable lid, in addition to the above-mentioned spring, normal power such as compressed air, magnetic force, hydraulic pressure, etc. can be used.

It is also possible to use mechanical or electrical contact switches, photodetectors, etc. in combination with various power sources.

Movement of the movable lid in only one direction is usually sufficient, but if necessary it can also be moved up and down to provide a completely smooth surface on the work surface.

It is also possible to completely close the gap by attaching an elastic body such as rubber to the tip of the movable lid.

The movable lid, the traveling device, the workbench, etc. can be made of conventional materials such as steel, aluminum, rubber, plastic, etc., as appropriate.

Embodiments of the present invention will be described below with reference to the drawings.

Fig. 1 is a plan view showing a part of the groove with an automatic opening/closing lid of the present invention, and Fig. 2 is a sectional view of Fig. 1.The configuration will be explained below based on Fig. 1 and Fig. 2. .

A floor surface 1 of the workbench is supported from a floor 2 by support columns 3, and a groove 5 for the traveling device 4 to pass through is provided in the floor surface 1 in the operating direction A of the traveling device 4 shown in FIG. A movable lid 6 that operates in a direction perpendicular to the direction of the groove 5 is installed directly under the floor surface 1 to close the groove 5.
The movable lid 6 is inserted from the upper surface of the floor 1, and is held between stepped rollers 8 inserted into a shaft 7 which is supported and suspended from the floor 1 at one end. The other end of the shaft 7 is attached to a fixing plate 9 connected to the floor 1 with a nut 1.
Fixed at 0. Then, one end of the movable lid 6 is connected to a spring 12 fixed to the support column 3 by a jig 11, and the force of the spring 12 normally applies to the groove 5.
is closed, but the stopper 13 provided on the movable lid 6
contacts the stepped guide roller 8 to determine the closed end. The movable lid 6 is provided on the upper surface of the main body below the floor surface 1 of the traveling device 4 with both ends parallel to the traveling device operating direction A shown in FIG. Slightly longer than the length of the bent device 4 2
The bar 15 is mounted vertically so as to be located within the movement locus of the book guide bar 14 (an enlarged perspective view thereof is shown in FIG. 3). In addition, the floor surface 1 of the traveling device 4
The portion passing through is shorter in length than the main body of the traveling device and narrower in width than the groove 5, but wider than the gap when the movable lid 6 is closed.

Next, the operation of the automatic opening/closing lid groove of the present invention having the above structure will be explained.

When the traveling device 4 is moved in the direction A shown in FIG.
5 and gradually expands, the movable lid 6 is operated by the guide roller 8 in the direction of opening the groove. When the traveling device 4 passes, the guide rod 14 separates from the bar 15, so the movable lid 6 is actuated by the spring 12 in the direction of closing the groove 5, and the stopper 13 hits the stepped roller 8 and stops.

As mentioned above, the automatic opening/closing groove with lid of the present invention opens and closes in conjunction with the movement of the traveling device, so not only does it not impede the movement of the traveling device, but it also closes the grooves in areas other than the area where the traveling device is present. This has the effect of increasing safety for workers and improving work efficiency, and since the workbench can also be used for normal work, coexistence between equipment and workers can be achieved, resulting in effective utilization. But it turned out to be very effective.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing a part of the automatic opening/closing lid groove of the present invention, FIG. 2 is a sectional view taken along the line -- in FIG. 1, and FIG. 3 is an enlarged perspective view of the guide rod. In the figure, 1...floor surface, 2...floor, 3...support column, 4...travel device, 5...groove, 6...movable lid,
7...Shaft, 8...Guide roller, 9...Fixing plate, 10...Nut, 11...Jig, 12...
Spring, 13... Stopper, 14... Guide rod, 1
5... Bar.

Claims (1)

[Scope of Claim for Utility Model Registration] A groove with a lid that is provided for running a device with a traveling function that spans above and below the floor with the floor board as the boundary, and that is automatically opened and closed as the device with a traveling function travels. 1 a. A lid main body of a size and appropriate length capable of closing the groove; b. A lid body located under the floor plate, perpendicular to the longitudinal direction of the groove and parallel to the floor plate. a predetermined number of grooved lids comprising: a support rod whose tip end is connected to the lid body; c. a bar whose one end is connected to a predetermined position of the support rod in a direction perpendicular to the floorboard and away from the floorboard; 2. An appropriate number of shafts with guide rollers disposed on the lower surface of the floorboard along the groove, perpendicular to the floorboard and so that the support rods are held between the guide rollers; 3. Shafts with guide rollers arranged at the rear end of the support rods means for pressing the attached lid body in the direction of the groove; The automatic opening/closing device is characterized by comprising a guide rod attached to a portion under the floor of the device with traveling function so as to operate the lid main body by coming into contact with the bar from one end and then separating from the other end. Groove with lid.