JPS6014727B2 - Cable automatic lowering device in cable support trolley transport device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an apparatus for transporting a trolley supporting a power supply cable or other cables across a member passing gap provided on a trolley running rail. The present invention relates to an automatic cable lowering device that can automatically lower a cable near the gap using a member that lowers the cable.

In the case of shelving equipment in which goods are carried in and out of multi-tiered shelves using electric shelving lifts, a trolley running rail is constructed along the upper part of the lift path, and a large number of trolleys run along the rail. The trolley suspends and supports the power supply and electrical control cables for the IJ shelf.

On the other hand, when installing a shutter or an elevating smoke-proof hanging wall at the end of the lift running direction in shelf type equipment for the purpose of fire prevention or theft prevention, the rail is divided and passes through the shutter or smoke-proof hanging wall. It is necessary to provide a relatively large gap for this purpose.

In addition, when lowering a shutter, smoke-proof hanging wall, etc. through the gap, it is necessary to lower the cable below the gap to the floor or a position close to the floor surface. It is an object of the present invention to provide an automatic cable lowering device that can automatically lower the cable below the gap by a simple means by utilizing the downward movement of a smoke-proof hanging wall or the like.

Next, this invention will be explained in detail using illustrated examples. The drawing shows one embodiment of the present invention, in which an upper main rail rail and an upper auxiliary rail 2 are connected in series through a shutter 15 or a gap G for passage through a dust-proof hanging wall. and a lower auxiliary rail 3 arranged to extend in the lift running direction, and further extending in the lift running direction.
At the front and rear portions of the upper surface, a plurality of running wheels ◇ are installed at a distance P in the longitudinal direction larger than the gap G, and a plurality of guide rollers are installed at a distance ○2 in the longitudinal direction larger than the gap G. Main trolley with 16 5, 6
A frame 17 is fixed thereto, and the lower auxiliary rail 3 and the main trolleys 5 and 6 constitute a trolley T for supporting an automatic cable dropping device.

The running wheels 4 of each of the main trolleys 5 and 6 are arranged so as to be able to roll on the upper surfaces of the lower flanges of the upper main rail and the upper auxiliary rail 2, and
The guide roller 16' is disposed so as to be movable opposite the side surfaces of the lower flanges of the upper main rail 1 and the upper auxiliary rail 2, and the lower main rail 18 is located on the forward extension line of the lower auxiliary rail 3. The upper flange of each rail is fixed to the tip of a bracket 20 attached to the upper part of the support column 19.

A stopper 8 is fixed to the front part of the upper auxiliary rail 2 for stopping the cable automatic lowering device support trolley 7 at a predetermined front end position, and a support fitting 9 is fixed to the rear part of the lower auxiliary rail 3 of the trolley 7. , one end of the cable support member 10 is pivotally attached to the support member 9 by a pivot shaft 21 extending in the front-rear direction, an intermediate portion of the support lever 11 is pivotally attached to the support fitting 9 by a support shaft 22 extending in the left-right direction, and The end portion of the cable support position 10 is locked to a hook-shaped locking portion 12 provided at the tip of the support lever 11, and the detachment operation portion 13 of the support lever 11 is connected to the gap G.
is located below. Support lever 11 and support metal fittings 9
A holding spring 14 made of a helical spring is connected under tension across the cable support member 1 to the locking portion 12 of the support lever 11, as shown by the solid line in FIG.
0 is locked, the center line of the holding spring 14 is above the center line of the support shaft 22 to hold the support lever 11 in the cable supporting position, and the third
When the detachment operation part 13 is pressed downward and the support lever 11 is rotated clockwise, that is, in the cable detachment direction, due to the lowering of the shutter 15, smoke-proof hanging wall, etc. from the state shown by the solid line in the figure, the holding spring When the center line of the holding spring 14 tilts downward and the center line of the holding spring 14 slightly exceeds the center line of the support shaft 22, the tensile force of the holding spring 14 causes the support lever 11 to rapidly move clockwise. Since the cable support lacquer member 10 is disengaged from the locking portion 12 of the support lever 11 and rotated downward about the pivot shaft 21, the cable 23 is disengaged from the cable support member IQ and falls. , the cable located below the gap G is placed on or near the floor, and the support lever wing 1 is held in the cable release position by the holding spring 14. In this way, by lowering the cable 23 below the gap G to a position where it becomes the floor surface, the shutter can be lowered to a position close to the floor surface. However, when the smoke-proof hanging wall is lowered from the gap, the cable 23 does not need to be lowered to the position where it touches the floor surface.

A plurality of running wheels 2 installed at intervals in the front-rear direction
4 and a plurality of trolleys 26 having a plurality of guide rollers 25 and running wheels 24 of the leading upper trolley 26' are mounted on the upper surface of the lower flange of the upper main rail, and the guide rollers 25 are mounted on the lower flange of the upper main rail. A plurality of lower wheels 27 are attached to the leading upper trolley 26' facing the lower surface of the lower flange. A stopper 28 is fixed for stopping the upper trolley 26 at a predetermined forward movement position, and this stopper 28 is disposed outside the side plate of the frame IT of the main trolleys 5, 6. The stopper 28 can be passed through the stopper 28, and the front end of the leading upper trolley 26' is provided with the stopper 28.
A locking member 29 that engages with is fixed. If it is necessary to provide a passage below the front end of the upper main rail 1 as described above, the stopper 28 may be provided an appropriate distance rearward from the front end surface of the upper main rail 1.

A plurality of running wheels 3 installed at intervals in the front-rear direction
The running wheels 30' of a plurality of lower trolleys 32 having 0 and a plurality of guide rollers 31 are overturned so as to be able to move over the lower flange of the lower auxiliary rail 3 and the upper surface of the lower flange of the lower main rail 18. The guide rollers 31 of the lower trolley 32 are arranged so as to be able to roll on the sides of each of the lower flanges.

A trolley frame 33 arranged at the front of the row of lower trolleys 32 supports the lower auxiliary rail 3 and the lower main rail 18.
A plurality of running wheels 34 that can roll on the upper surface of the lower flange, a plurality of lower wheels 35 that can face the lower surface of the valley lower flange, and a plurality of guide rollers that can face the side surfaces of each of the lower rails 3, 18. 36 are arranged at intervals in the front and back direction and are rotatably attached, and a locking and operating member 37 consisting of a roller is fixed to the side plate of the trolley frame 33, and a transporting and operating trolley 38 is mounted. Further, a retreat limiting stopper 39 is fixed to the front end side of the lower auxiliary rail 3 to be engaged with the rear surface of the transport/operating trolley 38, and a stopper 39 for restricting the retreat is fixed to the front end side of the lower auxiliary rail 3.
The foot 40 is connected to the upper end of the frame 41 via a turnbuckle-type continuous member 42 whose length is adjustable.

A level adjustment fitting 43 having a guide slope is fixed to the upper side surface of the weave in the lower main rail 18, and the automatic cable lowering device support trolley 7 moves forward so that the front end surface of the lower auxiliary rail 3 is aligned with the lower main rail. When assisting or approaching the rear end surface of S8, the lower surface of the upper flange of the lower auxiliary rail 3 is guided by the slope of the level adjustment fitting 43, so that the lower auxiliary rail 3 and the lower main rail 18 are leveled. Furthermore, when the front main trolley 5 hits the stopper 8, the front end surface of the lower auxiliary rail 3 contacts or approaches the rear end surface of the lower main rail 18. At the upper part of the front end of the lower auxiliary rail 3, the intermediate part of the locking lever 44 is attached to a pivot shaft 4 extending in the left-right direction.
5, and a guide member 46 made of an o-roller is fixed to the upper rear end of the lower main rail 18, and a holding member 47 made of a roller is fixed to the front end of the upper auxiliary rail 2. A backstop prevention stopper 48 is attached, and the front end of the holding member 47 is connected to the rear upper part of the lower main rail 18. A guide slope 49 that slopes upward from the rear toward the front is provided at the lower part of the front end of the lever 44, and a guide slope 49 that slopes upward from the rear to the front is provided at the upper part of the front end of the lever 44. A prevention engaging portion 50 is provided, and a forward engaging portion 5 that is to be engaged with the locking and operating member 37 between the pivot shaft 45 and the guide slope 49 is provided at the intermediate lower part of the lever 44.
1 is provided at the rear end of the lever 44, and a lever-lowering operation portion 52 to be engaged with the locking/operating member 37 is provided.

One end of a tension spring 53 is connected to the front of the pivot 45 of the lever 44, and the spring end of the tension spring 53 is connected to a spring mounting bracket 54 fixed to the upper part of the front end of the lower auxiliary rail 3. When the lower auxiliary rail 3 is a certain distance or more backward from the lower main rail 18 as shown in FIG. 5
The lever 44 is held in the collapsed position by the elasticity of the lever 44. Therefore, when the transport/operating trolley 38 is moved forward by the shelving IJ lift 40 in this state, the locking/operating member 37 of the trolley 38 is moved forward by the lever 44. The automatic cable lowering device supporting trolley 7 is moved forward via the lever 44. When the trolley 7 is further moved forward after the guide slope 49 of the lever 4 engages with the guide member 46, the lever 4 is moved through the guide slope 49 by the guide member 46.
When the lever 4 is rotated clockwise and the center line of the tension spring 53 slightly exceeds the center line of the pivot shaft 45, the lever 44 is rapidly rotated clockwise by the tensile force of the tension spring 53. , and the front trolley 5 of the cable automatic lowering device support trolley 7 hits the stopper 8, and the front end surface of the lower auxiliary rail 3 hits the lower main rail 18.
When the rear end of the lower auxiliary rail 3 is supported or close to the rear end, the backward prevention engaging portion 50 of the lever 4 is engaged with the backward prevention stopper 48 of the holding frame 47, so that the lower auxiliary rail 3
backward movement is prevented.

As mentioned above, when the front end surface of the lower auxiliary rail 3 is in contact with or close to the rear end surface of the lower main rail 18, the lever 44 and the backward prevention stopper 48 prevent the lower auxiliary rail 3 and the lower main rail 18 from being connected to each other. Relative separation movement is prevented, and the forward engagement portion 51 of the lever 44 engages the locking and operating member 37 of the transfer operation trolley IJ-38.
Since the transport/operation trolley 38 can be moved forward from the lower auxiliary rail 3 along the lower main rail 18 from the shelf IJ lift 401.

A power supply and electrical control cable 23 is attached to each of the upper trolleys 26, 26' and each lower trolley 32 by a cable hanger 55, and the transport and operation trolley 38 and each of the lower trolleys 32 adjacent in the front and back direction are connected to each other by a chain or They are connected via a flexible strip such as a rope (not shown), and when the shelf IJ foot turtle 0 is moved forward, each of the lower trolleys 32 is connected via a flexible strip such as a rope. It is moved forward from the lower auxiliary rail 3 along the lower main rail. Next, when the shelf stacking lift 48 is moved backward, the transport and operation trolley 3 is moved backward, and the lower trolleys 32 are sequentially moved backward from the trolley 38. When the locking operation member 37 engages with the lever folding operation portion 52 of the lever base 4 and then moves backward, the lever 44 is rotated counterclockwise, that is, in the folding direction, and the center line of the reefing spring lever 3 is aligned. When the center line of the pivot shaft 45 is slightly crossed downward, the lever lever is rapidly rotated counterclockwise due to the tension (pulling force of the copy 53). 8
is removed from the back-up prevention stopper, and then the transport/operation trolley 3 engages with the back-restriction stopper 3 fixed to the front of the lower auxiliary rail 8. Cable automatic lowering device support trolley through operation trolley proverbial crab? can be moved backwards.

The support fitting 9 also serves as a stopper to prevent the rearmost lower trolley S2 from coming off the rear end of the lower auxiliary rail 3.

As mentioned above, the main trolley horse; if the longitudinal distance D between the running wheel bases of the main trolley and the longitudinal distance 2 between the guide rollers 6 are made larger than the gap G, the main trolley horse 6 will be in the gap. You can pass through part G smoothly.

Alternatively, flanged wheels may be employed as the running wheels 4 in each of the main trolleys 6 and the running wheels in each of the other trolleys lj~, and guide rollers in these trolleys may be omitted. The cable automatic lowering device support trolley? As for "3 in one trolley frame"
It is also possible to use a vehicle in which two or more running wheels are attached at intervals greater than the gap G in the longitudinal direction.

In this case, the lower main rail is not installed, but the upper auxiliary rail is extended to the required length, multiple upper trolleys are placed in front of the automatic cable lowering device support trolley, and the upper trolleys are extended along the upper auxiliary rail. Make it possible to run. According to this invention, when a member such as a shutter or a smoke-proof hanging wall descends through the gap G for passage between the main rail 1 and the upper auxiliary rail 2, the member When the support lever 11 is rotated in the cable release direction against the elasticity of the spring 14 and the end of the cable support member 10 is released from the locking portion 12 on the support bar 111, the cable support member 10 is pivoted. Since the cable 23 is automatically routed downward as the center of the cable 21 and the cable 23 is detached from the cable support member 10 and falls, it is easy to use a simple means by using the downward movement of the shutter or smoke-proof hanging wall. This allows the cable 23 below the gap G to be automatically lowered to near the floor. Therefore, even if the cable 23 is prevented from getting in the way when lowering members such as shutters or smoke-proof hanging walls, it is difficult to do so. After the shutter or smoke-proof hanging wall has been used and it has been raised to its original position, the cable support member 18 can be rotated horizontally to A simple operation is carried out in which the cable 23 is supported by the support lever 1, and the support lever motherboard is rotated in the cable support direction to lock the end of the cable support member D to the locking part of the support lever turtle 1. As a result, effects such as being able to suspend and support the cable 23 again at its original position can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a side view of a cable support trolley transport device having an automatic cable lowering device according to an embodiment of the present invention;
The figure is an enlarged side view showing the vicinity of the automatic cable lowering device in the cable support trolley transport device. A vertical sectional front view showing the state outside the village.
Figures 6 to 9 are side views showing the operating sequence when connecting the lower auxiliary rail to the lower main rail, and Figure 9 shows the front part of the trolley for supporting the automatic cable lowering device and the state of attachment of the lever to the trolley. FIG. In the figure, 1 is the upper main rail, 2 is the upper auxiliary rail,
3 is a lower auxiliary rail, 4 is a traveling wheel, 5 and 6 are main trolleys, 7 is a trolley for supporting the automatic cable lowering device, 8 is a stopper, 9 is a support fitting, 1 is a cable support village, 11
1 is a support lever, 12 is a locking part, 13 is a release operation part, 14
15 is a holding spring, 15 is a shutter, 18 is a lower main rail, 21 is a pivot, 22 is a support shaft, 23 is a cable, 26 and 26' are an upper trolley, 32 is a lower trolley, 37 is a locking/operating member, 38 39 is a transport and operation trolley, 39 is a stopper for restricting retreat, 40 is a shelf IJ foot, 44 is a ladder bar, 48 is a stopper for preventing retreat, 49 is a guide slope, 5
0 is an engagement part for preventing backward movement, 51 is an engagement part for advancement, 52 is a lever lowering operation part, 55 is a cable hanger, and G is a gap for member passage. Figure 5 Figure 4 Figure 6 Figure 7 Figure 8 Figure 9

Claims (1)

[Claims] 1. An upper auxiliary rail 2 is arranged in series in front of the main rail 1 with a gap G for member passage therebetween, and a cable automatic lowering device support trolley 7 that runs along the upper main rail 1 and the upper auxiliary rail 2 One end of a cable support member 10 is pivotally connected to the fixed support fitting 9, and a support lever 11 is also pivotally connected to the fixed support fitting 9, and the support lever 11 moves the other end of the cable support member 10 to the cable support position. It is provided with a locking part 12 for locking, and a detachment operation part 13 disposed below the member passing gap G, and the support lever 11 functions to hold it in the cable supporting position. A cable supporting trolley conveying device characterized in that a holding spring 14 is engaged and a stopper 8 is attached to the upper auxiliary rail 2 to stop the cable detachment device supporting trolley 7 at a predetermined position. Automatic cable lowering device.