JPH0281893A - Suspension travel conveyor with expansion type falling preventing device - Google Patents

Abstract

PURPOSE:To receive a matter to be conveyed which falls during conveying by a flexible film member and to improve a safety by providing a flexible film member for receiving the matter to be conveyed which falls and is expended by a moving and circulating line member so as to shield the lower part of the matter to be conveyed which is hoisted. CONSTITUTION:In case a matter to be conveyed constiting of a bucket 38 in which cargoes are accommodated is conveyed, the matter to be conveyed placed on a floor or a base is clamped by a conveyed matter clamp device 3 and hoisted by a hoist 35. Then, an expansion driver 10 is driven to an expanding direction, the front end part of a flexible film member 9 is pulled forward through a sliding and hoisting means 62 by a moving and circulating line member. The lower part of the matter to be conveyed which is hoisted is shielded by the flexible film member 9. Consequently, due during conveying by a suspension and travel conveyor, when the matter to be conveyed falls due to any reason, the falling matter to be conveyed can be received by the flexible film member 9 safely.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a suspension system having a telescoping fall prevention device used for transporting various product parts, luggage, etc. in production factories, automated warehouses, etc. The present invention relates to a conveyance device.

[Conventional technology]

Conventionally, a suspension traveling transport device has a structure in which a transport vehicle that travels suspended along a traveling rail installed on the ceiling is provided with a transport object lifting support device having a transport object clamping device at the bottom of the transport vehicle. Are known.

When a packet containing small items such as mechanical parts is transported by the conventional suspended transport device, if too many small items such as mechanical parts are placed in the packet, there is a risk that the small items may fall out of the packet during transport.

In addition, if the transported object is transported while the clamping device is not fully clamping the transported object, there is a risk that the transported object may come off the clamp device and fall during transport. There is also a risk that the clamping device may open and the object to be transported may fall.

Since suspended conveyance devices are often installed above areas where workers pass or above production lines in production plants, it is dangerous if objects to be transported fall during transportation. As a countermeasure to this problem, a safety net has been installed below the suspended transport line to catch fallen objects.

[Problem to be solved by the invention]

When installing a safety net that extends below the suspended conveyor line, place a number of hanging materials along both sides of the suspended conveyor line, and connect the upper end of each suspended material to a building beam or Since it is necessary to connect the long safety net to a supporting member fixed thereto, and to construct both sides of the long safety net over the lower ends of a large number of hanging members, the problem is that the equipment cost is high and a large space is required. There is.

SUMMARY OF THE INVENTION An object of the present invention is to provide a suspended transport device having a telescopic fall prevention device that is inexpensive in equipment cost and does not require a large space.

[Means to solve the problem]

In order to achieve the above-mentioned object, in the suspension traveling transport device having a telescoping fall prevention device of the present invention, an object to be transported is placed at the bottom of the transport vehicle 2 which runs suspended along a traveling rail l installed on the ceiling. In a suspension traveling conveyance device provided with a transported object lifting support device having a clamp device 3,
Guide rails 5 extending parallel to the front-rear direction are arranged on both left and right sides below the vehicle body 4 of the conveyance vehicle 2, and the guide rails 5 are connected to the vehicle body 4 via a connecting member 6, and each guide rail 5 A guide roller 8 attached to the upper part of a large number of hanging tools 7 is placed on the holder, and both left and right sides of a flexible membrane material 9 for receiving a falling object are supported by a large number of hanging tools 7. A drive wheel 11 rotated by a telescoping drive device 10 is provided at the front of the rail 5, and a driven wheel 12 is provided at the rear of each guide rail 5, and the drive wheel 11 and each driven wheel 12 move respectively. The front end portion of the flexible membrane material 9 is directly or indirectly connected to the same direction moving portion of each moving circulation strip 13, and the flexible membrane material 9 is wrapped around the flexible membrane material 9.
A rear end portion of the guide rail 5 is connected directly or indirectly to the guide rail 5.

Further, in a suspension traveling conveyance device in which a conveyance vehicle 2 that runs suspended along a traveling rail 1 installed on a ceiling is provided with an article support device having a conveyed article clamping device 3 at the bottom of the conveyance vehicle 2, the conveyance vehicle Guide rails 5 extending parallel to the front and back direction are directly or indirectly fixed to both left and right sides of the lower part of the vehicle body 4 at The upper end of each vertical rod 15 in a large number of upwardly opening groove-shaped support frame rods 14 placed on the frame and arranged at intervals in the front-rear direction is connected to the hanging device 7, and can be used to catch fallen objects. The flexible membrane material 9 is installed over each support frame rod 14 in a groove shape,
A driving wheel 11 rotated by a telescopic drive device 10 is provided at the front of each guide rail 5, and a driven wheel 12 is provided at the rear of each guide rail 5. A moving circulation strip 13 is wound around each of the moving circulation strips 13, and each vertical rod 15 of the support frame rod 14 attached to the front end of the flexible membrane material 9 is attached to a portion of each moving circulation strip 13 that moves in the same direction. The above object can also be achieved by connecting the upper end directly or indirectly and by connecting the rear end of the flexible membrane material 9 to the guide rail 5 directly or indirectly.

[For production]

After the transported object is grasped and lifted by the transported object clamp device, the telescopic drive bag? lf 10 is operated in the extension direction, the flexible membrane material 9 for receiving the falling transported object is extended by the moving circulating strip 13, and the flexible film material 9 is arranged under the transported object, In this state, the conveyance vehicle 2 conveys the object to a predetermined position.

Use an extendable drive bag when unloading items! When the IO is operated in the shortening direction, the flexible membrane material 9 for receiving a falling object is shortened by the moving circulation strip 13, and the flexible membrane material 9
is moved backward from the bottom of the transported object.

〔Example〕

Next, the present invention will be explained in detail using illustrated examples.

1 to 10 show an embodiment of the first invention, in which three downward openings extending in the longitudinal direction of the rail are provided on the lower surface of the upper groove side plate 17 of the rail main body 16 in the form of a horizontally opening groove. An upper guide groove 18 having a shaped cross section is provided on the upper surface of the lower groove side plate 19 of the rail main body 16,
In the lower part of the upper guide Rp18, a lower guide groove 20 with an upward opening and a tri-shaped cross section extending in the longitudinal direction of the rail is provided to constitute a running rail l, and this running rail is manufactured by extrusion molding of an aluminum alloy. Ru.

The running rail 1 configured as described above is arranged so that the groove of the rail opens laterally, and a large number of supporting members 21 are arranged at intervals in the longitudinal direction of the outer surface of the groove bottom plate 22 of the running rail. The upper part of the support member 21 is suspended and supported by an inverted U-shaped hanging bracket 25 and bolts 26 from a support beam 24 installed on a beam of a building. ing.

Frames 2 are installed at the front and rear parts of the vehicle body 4 of the transport vehicle 2.
7 is rotatably mounted on a vertical shaft, and two lower guide rollers 29 and 2 are provided on each frame 27, respectively, and are spaced apart from each other in the longitudinal direction of the running wheels 28 and the rail.
The upper guide rollers 30 are attached, and the running wheels 28 are attached to the lower guide rollers 30. The lower guide roller 29 is placed on the bottom of the groove of the JI20, and the lower guide roller 29 is placed on the bottom of the groove of the JI20.
Further, the upper guide roller 3o is fitted into the upper guide 781B.

A traveling drive device 31 consisting of an electric motor with a brake and a speed reducer is fixed to one frame 27, and the drive device i31 drives one of the traveling wheels 2 through a gear transmission mechanism.
8 is driven, the vehicle body 4, a frame 27 attached to both the front and rear sides thereof, and the frame 2
The conveyance vehicle 2 is constituted by each part supported by 7.

The power supply contact wire 32 is arranged within the rail, and
The winder is fixed to the groove bottom plate 22 by an insulating support 33 and bolts (not shown), and includes four drums 34 arranged at intervals in the front and rear and left and right directions within the vehicle body 4. The upper part 35 is fixed, and a fiber heald 36 with a built-in conductive wire is wound around each drum 34, and one end of the fiber heald 36 with a built-in conductive wire is attached to the drum 34.
The hanging end portions of the fiber healds 36 with built-in conductive wires, which are fixed to the drums and hang down from each drum, are connected to an elevating member 37, and furthermore, on both sides of the elevating member 37 in the middle direction, there are clamp members for gripping the baggage storage packet 38. Clamps on both sides are attached to a left-handed threaded portion and a right-handed threaded portion of a double-threaded screw rod (not shown), which is provided so that the rods 39 move toward each other or move away from each other, and is rotated by an electric motor provided in the elevating member 37. (The main part 39 is screwed together, and the clamp members 39 on both sides are moved toward or away from each other by forward rotation or reverse rotation of the electric motor, and the lifting member 37 and the clamp members 39 provided thereon are Each part constitutes a conveyed object clamping device 3, and the conveyed object clamping device 3, which is moved up and down by means of the hoist 35 and the fiber belt 36 with built-in four conductive wires, constitutes a conveyed object clamping device 3. A conveyance lifting support device is configured.

Guide rails 5 each having a downwardly opening groove-shaped cross section and having an inwardly protruding lower flange 40 and a mounting side groove extend in parallel in the front-rear direction on both left and right sides below the vehicle body 4 of the transport vehicle 2. Each guide rail 5 is arranged as follows.
are arranged at the bottom of both left and right sides of the box-shaped frame-shaped connecting member 6, and the mounting side groove on one side of the guide rail 5 is fitted into the hook of the receiving metal fitting 41 fixed to the lower surface of the connecting member 6. , and the tip of the mounting bracket 42 is fitted into the mounting side groove on the other side of the guide rail 5, the mounting bracket 42 is fixed to the receiving bracket 41 with a bolt 43, and the upper end of the connecting member 6 is attached to the vehicle body. A side membrane material 44 made of canvas or synthetic fiber net is stretched around the box-shaped frame-shaped connecting member 6.

A cylindrical front holding member 4 is provided at the front end of each guide rail 5.
5 are fitted and fixed, and a cylindrical rear holding member 46 is fitted and fixed to the rear end of each guide rail 5, and furthermore, a telescoping mechanism consisting of a speed reducer and an electric motor with a brake is installed at the center of the lower front part of the vehicle body 4. A support member 47 to which the telescopic drive device 10 is fixed is fixed to the lower part of the vehicle body 4.

A vertical shaft 48 is rotatably attached to each front holding member 45 , and a drive wheel II disposed within the front holding member 45 and a toothed shaft disposed on the upper part of the front holding member 45 are attached to the vertical shaft 48 . A toothed belt 51 is fixed to the driven wheel 49 and extends between the two toothed driving wheels 50 fixed to the output shaft of the telescopic drive device 10 and the toothed driven wheel 49 on the upper part of each front holding member 45. or wrapped around each rear holding part (171)
A slit 52 extending in the front-rear direction is provided in the upper and lower plates of 446, and the driven wheel 12 is rotatable within the rear holding member 46 on a movable support shaft 53 that is fitted into the slit 52 so as to be movable back and forth. At the same time, the groove-shaped portion 55 of the traction fitting 54 is fitted and connected.

An endless moving circulating strip 13 made of a wire A-rope is wound over the driving wheel 11 and the driven wheel 12, and the threaded rod 56 of the traction fitting 54 is connected to the rear holding member 4.
6 is inserted into the spring receiving member 57 fixed to the threaded rod 56, and a strip tensioning spring 58 and the washer 5 are inserted on the tip side of the threaded rod 56.
9 is fitted, and a tensioning nut 60 is screwed together, and the driven wheel 12 is pulled by the strip tensioning spring 58 via the traction fitting 54, thereby tensioning the movable circulation strip 13.

Lower flanges 40 on both left and right sides of each guide rail 5
Guide rollers 8 are placed on both left and right sides of the upper part of a large number of hanging tools 7, and both ends of a large number of horizontal support rods 61 arranged at intervals in the front and rear direction are A sliding sling 62 connected to the sling 7 and disposed at the front of the sling group having a guide roller 8 is connected to the guide rail 5.
The moving circulation strip 13 is slidably fitted into the moving circulation strip 13.
A supporting horizontal rod 61 is fixedly installed across the left and right sliding hanging tools 62.

A flexible membrane material 9 for receiving fallen objects made of canvas or synthetic fiber net is constructed and fixed across each support horizontal rod 61 and connected to each hanging device 7, and is connected to the flexible membrane material 9. The rear end portion of the material 9 is connected to a holding rod 63 that is fixedly installed across each rear holding member 46 , and a front striker 64 and a rear striker 65 are fixed to the sliding suspension 62 . Front striker 64
A front end limit switch LSI for stopping the operation of the drive device, which is operated by a rear striker 65, is fixed to the rear end side of the guide rail 5. When the front end limit switch LSI or the rear end limit switch LS2 is operated, the operation of the telescopic drive device 10 is stopped.

In the apparatus according to the embodiment of the first invention, when transporting an object consisting of a packet 38 containing cargo, the object placed on the floor or on a table is gripped by the object clamping device 3. After hoisting up the flexible membrane material 9 to the upper limit position using the hoisting device 35, the extensible drive device 10 is operated in the extending direction, and the front end of the flexible membrane material 9 is The flexible membrane material 9 is pulled forward.
The wave extends below the lifted object, and the extended flexible membrane material 9 shields the lower part of the lifted object.

Next, after the conveyance vehicle 2 is driven to a predetermined position, the telescopic drive device IO is operated in the shortening direction, and the moving circulation strip 13 is
The front end of the flexible membrane material 9 is pressed rearward via the sliding hanger 62, and the flexible membrane material 9 is shortened backward as shown in FIG. After opening the lower part of the object, the hoisting machine 35 is operated in the lowering direction to lower the object onto the floor or table.

11 to 15 show an embodiment of the second invention, in which a toothed driven wheel 49 is arranged at the lower part of the front holding member 45 and is horizontally disposed on both left and right sides of the lower part of the vehicle body 4. A connecting member 6 is fixed, a guide rail 5 is fixed to the lower part of the connecting member 6, and a large number of upwardly opening groove-shaped support frame rods 14 are arranged in parallel at intervals in the front and rear direction. The upper ends of the vertical rods 15 on both the left and right sides of 14 are as follows:
It is connected to the lower part of a hanger 7 which is movably supported by a guide rail 5.

The upper end portions of the vertical rods 15 in the support frame rods 14 having an upwardly opening groove shape are also connected to the left and right sliding hanging tools 62, and the flexible membrane material 9 for receiving fallen objects is connected to each of the vertical rods 15 in a groove-shaped state. Support frame rod 14
However, other configurations and functions are the same as in the embodiment of the first invention.

When carrying out this invention, the driving wheel 11 and the driven wheel 12
may be attached directly to the guide rail 5.

Further, in the case of the embodiment of the first invention, the supporting horizontal rod 61 may be omitted. Furthermore, in the case of the embodiment of the second invention, the inside of the lower part of the vehicle body may be widened and the guide rails 5 may be directly fixed to both left and right sides of the lower surface of the vehicle body 4.

(Effects of the Invention) Since the present invention is configured as described above, it produces the following effects.

After the object to be transported is gripped and lifted by the object lifting support device having the object clamping device 3, simply driving the telescopic drive device 10 in the extension direction causes the moving circulation strip 1 to move.
3, the front end of the flexible membrane material 9 for receiving the fallen object is pulled forward, and the flexible membrane material 9 is extended so as to cover the lower part of the lifted object. Therefore, if the object to be transported falls for some reason during transportation by the suspended transport device, the fallen object can be caught by the flexible membrane material 9, so it is safe. Further, after the object to be transported is transported to a predetermined position by the suspended traveling transport device, when the telescopic drive device 10 is simply operated in the shortening direction, the front end of the flexible membrane material 9 is moved by the moving circulation strip 13. When pressed backwards, the flexible membrane material 9 is shortened and the lower part of the lifted object is opened, so that the object can be lowered without any hindrance. Since it is only necessary to equip the transport vehicle 2 that travels suspended with a fall prevention device, the installation cost is lower and the space used is smaller than in the conventional case where a safety foothold is installed.

Furthermore, the upper end of each vertical rod 15 in the support frame rods 14 each having a large number of upwardly opening grooves is connected to a hanging device 7 that moves along the guide rail 5, and has a flexible structure for receiving fallen objects. By erecting and fixing the membrane material 9 across each support frame rod 14 in a grooved state, it is possible to reliably prevent fallen objects from spilling to the side with a simple means.

[Brief explanation of the drawing]

Figures 1 to 5 show an embodiment of the first invention, in which Figure 1 is a partially longitudinal front view of a suspended conveyance device having a telescoping fall prevention device, and Figure 2 is a suspended conveyance device. FIG. 3 is a partially cutaway side view showing a state in which the flexible membrane material in the conveyance device is stretched; FIG. The figure is a schematic plan view showing the circulation drive device for the moving circulation strip, FIG. 5 is a front view thereof, and FIG. 6 does not show the tensioning device for the moving circulation strip.
#1 cross-sectional side view, Figure 7 is a partially longitudinal front view showing the installation state of the guide rail and the connected state of the support horizontal rod, and Figure 8 is a sliding suspension holder with a striker supported by the guide rail. Fig. 9 is a partially cutaway side view showing the relationship with the Mift Suinochi, Fig. 9 is a longitudinal sectional front view showing the sliding suspension with a striker fitted into the guide rail, and Fig. 1O shows the state of attachment of the transport vehicle to the traveling rail. It is a partially longitudinal front view shown. 11 to 15 show an embodiment of the second invention, in which FIG. 11 is a partially vertical front view of a suspended conveyance device having a telescopic fall prevention device, and FIG. 12 is a suspended conveyance device. FIG. 13 is a side view showing a state in which the flexible membrane material in the conveyance device is stretched; FIG. 13 is a side view showing a state in which the flexible membrane material in the suspended and vertical conveyance device is shortened; v
& FIG. 15 is a front view showing the circulation drive device for the idle strip body, and FIG. 15 is a partially vertical front view showing the attached state of the guide rail and the connected state of the support frame rod. In the figure, l is a running rail, 2 is a transport vehicle, 3 is a clamping device for transported objects, 4 is a vehicle body, 5 is a guide rail, 6 is a connecting member, 7 is a hanging device, 8 is a guide roller, and 9 is a falling object. Flexible membrane material for receiving objects to be transported, IO is a drive device for expansion and contraction, 1
1 is a driving wheel, 12 is a driven wheel, 13 is a moving circulation strip, 1
4 is a support frame rod, 15 is a vertical rod, 18 is an upper guide groove, 20
is a lower guide groove, 21 is a support member, 24 is a support beam,
28 is a traveling wheel, 29 is a lower guide roller, 30 is an upper guide roller, 31 is a traveling drive device, 35 is a hoisting machine,
3G is a fiber belt with a built-in conductive wire, 37 is an elevating member, 38 is a luggage storage bar, 39 is a clamp member, 40 is a lower flange, 41 is a receiving metal fitting, 42 is a mounting metal fitting, 43 is a bolt, 44 is a side membrane material, 45 is a front holding member, 46 is a holding member, 47 is a support member, 4 is a vertical axis, 49 is a toothed driven wheel, 50 is a toothed drive wheel, 51 is a toothed heald, 53 is a movable support shaft, 58 60 is a tensioning nut, 61 is a support horizontal rod, 62 is a sliding suspension, 63 is a holding rod, 64 is a front striker, 65 is a rear striker, LS
l is the front end limit switch for stopping the drive device operation, LS2
is the rear limit switch for stopping the operation of the drive unit. Figure 15

Claims (2)

[Claims] (1) In a suspension traveling transport device in which a transport vehicle 2 that runs suspended along a traveling rail 1 installed on the ceiling is provided with a transport object lifting support device having a transport object clamping device 3 at the bottom of the transport vehicle 2, Guide rails 5 extending parallel to the front-rear direction are arranged on both left and right sides below the vehicle body 4 of the conveyance vehicle 2, and the guide rails 5 are connected to the vehicle body 4 via a connecting member 6, and each guide rail 5 A guide roller 8 attached to the upper part of a large number of hanging tools 7 is placed on the holder, and both left and right sides of a flexible membrane material 9 for receiving a falling object are supported by a large number of hanging tools 7. A drive wheel 11 rotated by a telescoping drive device 10 is provided at the front of the rail 5, and a driven wheel 12 is provided at the rear of each guide rail 5, and the drive wheel 11 and each driven wheel 12 move respectively. The front end portion of the flexible membrane material 9 is directly or indirectly connected to the same direction moving portion of each moving circulation strip 13, and the flexible membrane material 9 is wrapped around the flexible membrane material 9. A suspended conveyance device having a telescopic fall prevention device whose rear end is directly or indirectly connected to a guide rail 5. (2) In a suspension traveling transport device in which a transport vehicle 2 that runs suspended along a traveling rail 1 installed on the ceiling is provided with a transport object lifting support device having a transport object clamping device 3 at the bottom of the transport vehicle 2, Guide rails 5 extending parallel to the front-rear direction are directly or indirectly fixed to both left and right sides of the lower part of the vehicle body 4 of the transport vehicle 2, and guide rails 5 are attached to the upper portions of a large number of hanging tools 7 to each guide rail 5. The upper end of each vertical rod 15 in a large number of upwardly opening groove-shaped support frame rods 14 on which rollers 8 are placed and arranged at intervals in the front-rear direction is connected to the hanging device 7, and is used to receive fallen objects. The flexible stopper membrane material 9 is installed and fixed in a groove-like state across each support frame rod 14, and an expansion/contraction drive device 1 is installed in front of each guide rail 5.
A driving wheel 11 rotated by 0 is provided, and a driven wheel 12 is provided at the rear of each guide rail 5, and a moving circulating strip 13 is wound around each driving wheel 11 and each driven wheel 12, The upper end of each vertical rod 15 in the support frame rod 14 attached to the front end of the flexible membrane material 9 is directly or indirectly connected to the same direction moving portion of each moving circulation strip 13, and A suspended conveyance device having a telescopic fall prevention device in which a rear end of a flexible membrane material 9 is directly or indirectly connected to a guide rail 5.