JPH05285070A - Traveling type lift - Google Patents

Abstract

PURPOSE:To obtain a traveling type lift which enables the traveling thereof along a parapet even on a building or the like which has a narrow space on the roof and moreover is complicated in plan view. CONSTITUTION:A tire 18 for full-wheel driven and steered operation on a support platform is driven and steered and a traveling type lift 10 is moved to the subsequent working range of a gauge along a parapet 12. Here, when the traveling type lift 10 is curved at a corner on the roof, the tire 18 is stopped once near a wall surface at a corner in the ongoing direction. Then, an outrigger provided on the support platform is driven, forcing the tire 18 to lift from a running course R and a lifting means is driven again, where the tire 18 is steered in the direction of curving and a lifting means is driven to keep the tire 18 in contact with the running course R. Then, the running of the tire 18 is performed. The running type lift 10 thus obtained allows curving easily at a corner without requiring turning space. The steering of the tire 18 being lifted eliminates creak with lighter operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is arranged on the roof of a building and suspends a wall work cage so that the cage can be lifted and lowered.
The present invention relates to a traveling type lifting device that travels on the roof of a building.

[0002]

2. Description of the Related Art In high-rise buildings in central Tokyo, wall surface cleaning (wall surface work) is regularly performed in order to maintain the beauty of the wall surface.

This wall surface cleaning is carried out on a cage that is suspended by a wire wound from a winding device of a roof car (carriage) installed on the roof of a building and is raised and lowered along the wall surface.
An operator manually wipes off stains on the wall surface and the window glass, or mechanically wipes stains on the window glass by attaching a rotating brush or the like to the cage. In order to clean the entire wall surface of the building with such a cage, it is necessary to move the roof car that suspends the cage along the wall surface of the building. As the traveling method of this crane, there are a track type and a trackless type.

As shown in FIG. 8, an orbital type roof car 1
20 is a rail 12 laid along the parapet 12.
The traveling unit 124 travels on the upper part of the vehicle. The traveling unit 124 includes a wheel 126 traveling on the upper surface of the rail 122 and a roller 12 for preventing overturning.
8 and.

In the track type roof car 120 having such a traveling unit 124, since the fall prevention mechanism (roller 128) is provided, stable traveling can be ensured. However, it takes time and labor to lay the rail 122 on the rooftop, and it is necessary to connect an anchor bolt (not shown) for fixing the rail 122 to the reinforcing bar of the ceiling slab.
It has a drawback that vibrations of the wheels 126 during traveling are transmitted indoors.

Further, when the angle of the corner portion is an acute angle (arrow A portion) as in the plan view of the roof shown in FIG. 9,
Since the roof car 120 cannot physically run on the rail 122, it is necessary to make a large detour and horizontally mount it on the corner. Furthermore, a point 130 must be provided at the corner branch portion B, and a turntable 132 must be provided at the connection portion C with the service wire.
The mounting structure of the rail 122 was complicated.

[0007] In order to make up for the drawbacks of the track type roof car 120, a trackless roof car is also used.

This trackless roof car has the advantages that it is a wheel to which rubber, polyurethane or the like has been burned, and that it can travel freely regardless of the planar shape of the roof and that vibrations transmitted indoors can be reduced. However, in the corner portion (see FIG. 8), it is difficult to move along the parapet 12 as in the trackless roof car. Therefore, in order to laterally attach the trackless roof car to the parapet 12, it is necessary to turn the wheels a plurality of times to make a large turn, and the work efficiency is reduced.

In addition, since a space for turning cannot be secured on the roof of a building where facilities such as a water tank are placed, a trackless roof car cannot approach a corner, and the boom is extended from a distant position. And so on.

[0010]

SUMMARY OF THE INVENTION In consideration of the above facts, the present invention provides a traveling type lifting device capable of traveling along a parapet even in a building having a narrow rooftop space and a complicated planar shape. The purpose is to do.

[0011]

A traveling type lifting device according to claim 1, wherein a cage for wall surface work is suspended by a wire so that the cage can be raised and lowered, and the traveling type lifting device travels on the roof of a building. A pedestal provided with a winding means for hoisting and lowering a wire for suspending the pedestal via a boom, a support base for rotatably supporting the pedestal, and a swivel provided on the support pedestal for swiveling the pedestal. Means, all-wheel drive and all-wheel steerable wheels mounted on the support base, and levitation means for levitating the travel wheels provided on the support base to move toward and away from a traveling road surface. There is.

According to another aspect of the present invention, there is provided a traveling type lifting device, which detects a relative position between an outer peripheral edge portion of a building roof and a support base, which is provided on the support base, and a signal from the position detection sensor. Based on this, there is provided control means for steering the traveling wheels to maintain a constant distance between the outer peripheral edge of the building roof and the support base.

In the traveling type lifting device according to a third aspect of the invention, when the position detection sensor provided in the traveling direction of the support detects the outer peripheral edge of the building roof, the traveling wheels are stopped and the floating means is provided. The control is performed such that the traveling wheels are levitated from the traveling road surface, the traveling wheels are steered in a predetermined direction in a floating state, and then the traveling wheels are again grounded to the traveling road surface by the levitation means, and the traveling direction is changed to travel the support base. It is characterized by having means.

[0014]

In the traveling type elevator having the above construction, the cage for wall surface work for cleaning the window glass of the building is hung by the winding means by the wire through the boom. That is, the cage is moved up and down along the wall surface of the building by winding up and down the wire with this winding means.

When the cleaning of the wall surface of the building within a predetermined range in the lateral direction is completed while the cage is descending, the cage is moved up to the next working range by raising the cage once by the winding means. Stored in the traveling lifting device.

Next, the traveling wheels attached to the support base of the traveling type lifting device are driven to move the traveling type lifting device along the outer peripheral edge of the building roof to the next working range of the cage. ..

Here, the operator may manually move the support base along the outer peripheral edge of the building roof while steering the traveling wheels, or the position detection sensor provided on the support base may be used to move the support base. The relative position between the outer peripheral edge of the roof and the support base is detected, and the traveling wheels are steered by the control means based on the output signal thereof, while keeping the distance between the outer peripheral edge of the building roof and the support base constant. The traveling type lifting device may be automatically driven.

Next, when the traveling type elevator device turns a corner portion on the rooftop, the traveling wheels are temporarily stopped near the wall surface of the corner portion in the traveling direction. Next, the levitation means provided on the support base is driven to levitate the traveling wheels from the traveling road surface. Here, the traveling wheels are steered in a bending direction, the levitation means is driven again, and the traveling wheels are grounded on the traveling road surface. Next, by traveling the traveling wheels, the traveling type lifting device can easily turn the corner portion. As described above, the traveling type lifting device does not require a turning space, and the traveling wheels are steered in a floating state, so that the operation is light and the squeaking noise does not occur.

Further, when the vehicle automatically bends at a corner, a position detection sensor provided in the traveling direction of the traveling type lifting device detects the outer peripheral edge of the building roof in the traveling direction. Here, the control means stops the running wheels according to the output signal of the position detection sensor. Next, the levitation means levitates the traveling wheels from the traveling road surface. Here, the traveling wheels are steered in a bending direction, the levitation means is driven again, and the traveling wheels are grounded on the traveling road surface. Next, if the running wheels are run, the corner can be turned.

[0020]

[Embodiment] FIG. 5 shows a traveling type lifting device 1 according to this embodiment.
A top view of the building rooftop with 0 is shown.

The planar shape of the rooftop of the building is a substantially rectangular shape having right-angled, obtuse-angled and acute-angled corners A, B and C, and a guide wall 14 is provided upright in parallel with the parapet 12.
A space between the guide wall 14 and the parapet 12 serves as a traveling path R of the traveling type lifting device 10.

Further, as shown in FIG.
On the upper part of the guide wall 14, a projecting wall 16 projecting toward the traveling path R is formed. Furthermore, parapet 12
At the lower part of the tire, there is a stopper wall 2 for preventing meandering of the tire 18.
0 is formed.

As shown in FIGS. 1 and 2, an operator room 24 and a tiltable boom 26 are provided on a pedestal 22 which constitutes the traveling type lifting device 10. This boom 2
A cylinder 28 is horizontally projectingly provided at a tip portion of 6. A support plate 30 is fixed to the tip of the cylinder 28, and pulleys 32, 3 are provided at both ends and the center thereof.
4, 36 are pivotally supported. Also, from the support plate 30,
A guide frame 38 assembled in a rectangular shape is suspended. A guide roller (not shown) attached to the cage 40 is inserted into the guide frame 38, so that the cage 4
0 is accommodated in the frame of the guide frame 38.

On the other hand, at the base of the boom 26, the winding device 4
2 are provided. The wire 44 wound around the winding device 42 suspends the cage 40 via the pulley 46 provided at the tip of the boom 26 and the pulleys 32, 34, and 36. As a result, the wire 44 is wound up and down by the winding device 42, and the cage 40 is moved up and down.

As shown in FIG. 3, a bearing 47 is fitted on the lower surface of the pedestal 22. An upper end of a center joint 48 projecting from the center of a rectangular support 50 is fixed to the inner race of the bearing 47. Further, on the lower surface of the pedestal 22, a cylindrical joint 51 is provided so as to project around the center joint 48. The lower end of the cylindrical joint 51 is rotatably supported by the support base 50 via a bearing 49. A swivel wheel 52 is provided on the lower surface of the pedestal 22 around the center joint 48. An inner helical gear 54 is formed on the inner peripheral surface of the slewing wheel 52.
4 engages with a pinion 56 of a turning motor 58 fixed to the support base 50. As a result, the swing motor 5
8, the pinion 5 meshing with the internal gear 54 of the slewing wheel 52
6 is rotated to rotate the pedestal 22 supported by the support base 50 about the center joint 48.

As shown in FIG. 4, both ends of the support base 50 in the longitudinal direction are suspended and fixed on a support frame 60 assembled in a square shape. Pins 62 project downward from the four corners of the support frame 60. This pin 62
An upper surface of a support bracket 64 bent in an L shape is rotatably supported by the. A drive motor (not shown) is attached to the side surface of the support bracket 64,
The drive motor drives the tires 18 mounted on the support bracket 64 independently of the four wheels.

Link members 66 and 68 are doubly provided on the upper surface of the support bracket 64. The connecting portion of the link members 66 and 68 is rotatably connected to the tip of a rod 72 of a hydraulic cylinder 70 attached to the central portion of the support base 50. That is, this hydraulic cylinder 7
By extending and contracting 0, the support bracket 64 is rotated, and the tires 18 attached to the support bracket 64 are steered independently of the four wheels. In this embodiment, since the link members 66 and 68 are provided in double, the steering force can be smoothly transmitted.

As shown in FIG. 3, the support frame 60
An outrigger 74 is provided in the. The pin 76 provided at the lower end of the outrigger 74 has a plate 7
8 is rotatably supported. As a result, when the outrigger 74 is hydraulically expanded and contracted, the dish plate 78 is moved to the traveling path R.
The traveling type elevating device 10 is lifted by contacting and separating with respect to, and the tire 18 is floated from the traveling path R.
The disc plates 78 are connected as a pair by plate springs 73 so as not to incline. Therefore, during traveling of the traveling type lifting device 10, the dish plate 78 rotatably supported does not contact the traveling path R of the concrete and the traveling path R is not damaged.

Further, an L-shaped mounting bracket 80 is fixed to the support frame 60 toward the outside. A plate 82 is fixed to the mounting bracket 80 along the traveling direction of the traveling road R lowering device 10 so as to protect the support frame 60. Brackets 84 are fixed to both ends of the plate 82. A stopper rubber 86 is fixed to the upper surface of the bracket 84. As a result, the traveling type lifting device 10 is
The stopper rubber 86 is locked to the projecting wall 16 when the vehicle tilts, so that the traveling type lifting device 10 is prevented from falling.

As shown in FIGS. 3 and 4, the traveling type lifting device 10 is in the forward and backward direction, the parapet 12 and the guide wall 1.
On the fourth side, a pair of position sensors S are arranged at a predetermined interval. This position sensor S is a parapet 1
2 is composed of an optical sensor 90 located on the top surface and an optical sensor 92 located on the top surface of the projecting wall 16, and each is connected to a control device (not shown). This control device includes a turning motor 58 for turning the pedestal 22 and a tire 18
Device for driving the hydraulic cylinder 70 for steering the tire 18
Is connected to a drive motor for driving the vehicle and a drive device for the outrigger 74.

Next, the traveling type lifting device 10 according to the present embodiment.
The action of will be explained. Although the operator can manually drive the traveling type lifting device 10, here,
A case where the traveling-type lifting device 10 travels (straight ahead) along a parapet 12 along a parapet 12 and bends at a corner by automatic traveling will be described. (When traveling along the parapet 12) As shown in FIG. 6, when the traveling type lifting device 10 is traveling on the traveling path R in parallel with the parapet 12, the optical sensor 90 is used.
Is located above the top surface of the parapet 12, and the optical sensor 92 is located above the top surface of the projecting wall 16.

Here, for example, as shown by a two-dot chain line,
When the front part of the traveling type lifting device 10 is biased toward the parapet 12, the optical sensor 92 moves above the top surface of the parapet 12, so that the amount of reflected light to be detected changes. As a result, the control device connected to the optical sensor 92 drives the drive device of the hydraulic cylinder 70 shown in FIG. 4 to extend the hydraulic cylinder 70 on the side of the parapet 12 and the hydraulic cylinder 70 on the side of the guide wall 14. Shrink. As a result, the tire 18 is steered to the right in the traveling direction, and the traveling type lifting device 10 and the parapet 12 are parallel to each other (indicated by a solid line). In this parallel state, the optical sensor 90 is located above the top surface of the parapet 12, and the optical sensor 92 is located above the top surface of the projecting wall 16. As a result, the control device drives the drive device of the hydraulic cylinder 70 to return the tire 18 to the straight traveling state.

As described above, since the traveling type lifting device 10 is controlled so as to travel along the parapet 12, it does not collide with the parapet 12 and does not damage the parapet 12. The stopper rubber 86 is
Since it is always located between the projecting wall 16 and the traveling road surface, even if the traveling type lifting device 10 is tilted due to an unbalanced load, the stopper rubber 86 is locked on the lower surface of the projecting wall 16 and the parapet 12
Never fall to the side. As shown by a solid line (when bending a right-angled corner portion A), the optical sensors 90 and 92 forming a pair of position sensors S arranged in the traveling direction of the traveling type lifting device 10 are
When the upper surface of the parapet 12 and the upper surface of the protruding wall 16 are detected, the control device stops the driving of the drive motor and the tire 18
Stop running. Here, the outriggers 74 are extended to lift the traveling type lifting device 10 and bring the tires 18 to a floating state (see FIG. 3). Next, the hydraulic cylinder 70
By this, all the tires 18 are steered to the right by 90 °, and in conjunction with this, the boom 26 is turned by 90 ° (indicated by a chain double-dashed line). The steering angle is set to 90 ° when the pair of position sensors S simultaneously detect the parapet 12 and the projecting wall 16. Next, the outrigger 74 is contracted to bring the tire 18 into a grounded state, and the tire 18 is driven by the drive motor to bend the corner A at a right angle.

As described above, since the tire 18 is steered in a floating state, the operation is light and no squeaking noise is generated. Further, when the traveling type lifting device 10 is tilted, the stopper rubber 86 is locked at two points of the projecting wall 16 on the guide wall 14 side and the projecting wall 16 of the parapet 12, so that the traveling type lifting device 10 can be reliably operated. It is possible to prevent falls. As shown by the solid line (when turning the obtuse corner B), when the traveling type lifting device 10 approaches the obtuse corner B, the position sensor S disposed on the left side in the traveling direction projects from the upper surface of the parapet 12. The upper surface of the wall 16 is detected. As a result, the control device stops the driving of the drive motor and the tire 1
Stop running of 8. Here, the outriggers 74 are extended to lift the traveling type lifting device 10 and bring the tires 18 to a floating state. Next, set the rear left tire 18a at 90
Steering is performed to steer the rear right tire 18b by 45 °.
Next, the outrigger 74 is contracted to bring the tire 18 into a grounded state, and the tire 18 is driven by the drive motor. As a result, the traveling-type lifting device 10 is provided with the tire 1 on the left side in the traveling direction.
Turn around 8c. As the turn progresses,
The position sensor S arranged on the right side in the traveling direction detects the upper surface of the parapet 12 and the upper surface of the protruding wall 16, and the control device stops the traveling of the tire 18. At this time, the traveling type lifting device 10 is positioned parallel to the parapet 12 on the traveling direction side (indicated by a two-dot chain line). Here, the outriggers 74 are extended again to lift the traveling-type lifting device 10 so that the tires 18 are in a floating state. Next, the boom 26 is rotated, and in conjunction with this, all the tires 18 are steered in the traveling direction (arrow B direction). Next, the outrigger 74 is contracted to bring the tire 18 into a grounded state, and the tire 18 is driven by the drive motor. As a result, the traveling type lifting device 10 can bend the sharp corner portion B.

Further, the corner portion on the guide wall 14 side is notched in a triangular portion in order to avoid collision with the traveling type lifting device 10. Therefore, it is assumed that the stopper rubber 86 on the guide wall 14 side is not locked to the projecting wall 16. However, in the present embodiment, the stopper rubber 86 is designed to be always locked at at least two points in order to reliably prevent the traveling type lifting device 10 from falling. Therefore, a fall prevention frame 96 is provided at the corner portion on the guide wall 14 side. As shown in FIG. 7, the fall prevention frame 96 includes a bracket 98 provided on the guide wall 14.
One end is rotatably supported by. Also, at the other end,
Hook portion 100 that engages with the projecting wall 16 on the parapet 12 side
A stopper 102 formed with is attached rotatably. As a result, when the traveling type lifting device 10 is stopped at the obtuse corner portion B, the operator sets the fall prevention frame 96 so as to span the upper surface of the traveling path R and engages the hook portion 100 and the projecting wall 16. If they are combined, even if the traveling type lifting device 10 is tilted, the stopper rubber 8
6 is locked to the fall prevention frame 96. As shown by the solid line (when the sharp corner C is bent), when the traveling type lifting device 10 approaches the sharp corner C, the position sensor S disposed on the right side in the traveling direction projects from the upper surface of the parapet 12. The upper surface of the wall 16 is detected. As a result, the control device stops the driving of the drive motor and the tire 1
Stop running of 8. Here, the outriggers 74 are extended to lift the traveling type lifting device 10 and bring the tires 18 to a floating state. Next, the left tire 18a in the traveling direction is steered by 45 °, and the right tire 18b is steered by 90 °.
Next, the outrigger 74 is contracted to bring the tire 18 into a grounded state, and the tire 18 is driven by the drive motor. As a result, the traveling type lifting device 10 is provided with the tire 18c on the rear right side.
Turn around. When the turning traveling progresses, the parapet 1 is detected by the position sensor S arranged on the left side in the traveling direction.
The upper surface of 2 and the upper surface of the protruding wall 16 are detected, and the traveling of the tire 18 is stopped by the control device. At this time, the traveling type lifting device 10 is positioned parallel to the parapet 12 on the traveling direction side (indicated by a two-dot chain line). Here, the outriggers 74 are extended again to lift the traveling-type lifting device 10 so that the tires 18 are in a floating state. Next, the boom 26 is turned, and in conjunction with this, all the tires 18 are steered in the traveling direction (direction of arrow C). Next, the outrigger 74
Is contracted to bring the tire 18 into a grounded state, and the tire 18 is driven by the drive motor. Thereby, the traveling type lifting device 1
0 can bend the sharp corner C.
In addition, at the corner of the projecting wall 16 on the guide wall 14 side, the traveling road R
A widened portion 94 is formed toward the. This widened part 9
By forming 4, the stopper rubber 86 is locked at the two points of the widened portion 94 and the projecting wall 16 on the parapet 12 side even when the traveling type lifting device 10 is tilted.

[0036]

EFFECTS OF THE INVENTION Since the traveling type lifting device of the present invention has the above-mentioned structure, it is possible to travel along the parapet even in a building having a small rooftop space and a complicated planar shape. For this reason, it is not necessary to turn the wheel a plurality of times to make a large turn in order to laterally attach it to the parapet, and work efficiency is improved.

[Brief description of drawings]

FIG. 1 is a side view showing a state where a traveling type lifting device according to the present invention is installed in traveling.

FIG. 2 is a front view showing a state where the traveling type lifting device according to the present invention is installed in traveling.

FIG. 3 is a cross-sectional view showing a lower structure of the traveling type lifting device according to the present invention.

FIG. 4 is a sectional view taken along line 4-4 of FIG. 3 showing a lower structure of the traveling type lifting device according to the present invention.

FIG. 5 is a plan view of a roof showing a traveling path of the traveling type lifting device according to the present invention.

FIG. 6 is a plan view showing a traveling state of the traveling type lifting device according to the present invention.

FIG. 7 is a side view showing a fall prevention frame.

FIG. 8 is a sectional view showing a state in which a conventional track-type roof car is installed on a rail.

FIG. 9 is a plan view showing a laid state of rails on which a conventional track-type roof car travels.

[Explanation of symbols]

 14 Guide Wall 16 Projection Wall 48 Pedestal 52 Support Base 54 Tire (Running Wheel) 74 Outrigger (Floating Means) 96 Fall Prevention Frame 102 Stopper

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akio Gondo 3-1-1 Ogawahigashi-cho, Kodaira-shi, Tokyo Inside the Bridgestone Tokyo factory (72) Inventor Moriji Kumagai 1 Asahara, Ogura-kita, Kitakyushu, Fukuoka -7-381 (72) Inventor Takao Ouchi 5-1 Sakurayashiki West, Mizusawa City, Iwate Prefecture Iwafuji Industrial Co., Ltd. Mizusawa Plant

Claims (3)

[Claims] 1. In a traveling type lifting device for hanging a cage for wall surface work with a wire so that the cage can be raised and lowered, and for traveling on a rooftop of a building, a wire for hoisting and lowering a wire for hanging the cage through a boom. A pedestal on which the means is disposed, a support base for rotatably supporting the pedestal, a slewing means arranged on the support pedestal for rotating the pedestal, all-wheel drive and all-wheel steering mounted on the support pedestal A traveling type lifting device, comprising: a traveling wheel that is capable of moving, and a levitation unit that is provided on the support base and floats the traveling wheel by contacting and separating from a traveling road surface. 2. A position detecting sensor which is disposed on the support base and detects a relative position between an outer peripheral edge portion of the building roof and the support base, and the traveling wheels are steered based on a signal of the position detecting sensor, whereby the rooftop of the building is steered. The traveling-type lifting device according to claim 1, further comprising: a control unit configured to maintain a constant gap between the outer peripheral edge portion and the support base. 3. When the position detection sensor provided in the traveling direction of the support detects an outer peripheral edge of a building roof,
The traveling wheel is stopped, the traveling wheel is levitated from the traveling road surface by the levitation means, the traveling wheel is steered in a predetermined direction in a floating state, and then the traveling wheel is again grounded to the traveling road surface by the levitation means, and the traveling direction is set. The traveling-type lifting device according to claim 1 or 2, further comprising control means for changing the position of the support base to cause the support base to travel.