JP2003129656A - Gondola device of combined use for crane - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gondola device of combined use for a crane that is disposed for maintenance work, can be diverted to the crane, and can be used for changing a facility or the like in renewal. SOLUTION: In the gondola device 1 of combined use for the crane, a lifting component 90 having a hook 93 at the tip of a lifting wire 3 trailed from a telescopic boom 40 of a carrier 10 movable along a guide rail 2B laid on the roof of a building 2 is lifted and supported, and a gondola cage 4 is connected to the lifting component 90 via a connection bar 5. The gondola device 1 is used as a gondola device. The gondola device 1 can be used as a crane by hanging a load on the hook 93 of the lifting component 90 by removing the connection bar 5 and the gondola cage 4 from the lifting component 90.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gondola device for supporting a work floor so that the work floor can be lifted and lowered by a hanging rope member that is hung from a trolley provided on the roof of a building. The present invention relates to a crane and gondola device that can also be used as a crane device for unloading.

[0002]

2. Description of the Related Art A gondola device for moving a work floor vertically and horizontally along a wall surface is used when a new construction, repair, cleaning or the like is performed on the outer wall surface of a building.

As one of such gondola devices, there is one in which a work floor is hung and supported from a trolley provided on a rail laid on the roof of a building through a hanging wire. The trolley is equipped with a hanging wire feeding / winding mechanism, which raises and lowers by feeding / winding the hanging wire by the feeding / winding mechanism, and moves the work floor horizontally by traveling along the rails. It is what

[0004]

[Problems to be Solved by the Invention] By the way, recently,
The demand for construction work to renovate high-rise buildings is increasing, but at that time, the air conditioning equipment installed on the rooftop is becoming larger due to the increase in the amount of heat generated by the increase in OA equipment. Replacing rooftop installation equipment is generally done from the ground using a traveling crane, but it is often difficult from the viewpoint of insufficient road load capacity and traffic obstruction. In such a case, a new crane is installed on the roof, or the equipment is disassembled into small pieces and the existing elevator is used for unloading, but it is extremely troublesome and requires a lot of time and cost. There is.

The present invention has been made in view of the above problems, and a gondola device provided for maintenance work can be used as a crane, and can also be used for replacing equipment during renewal. It is intended to provide a gondola device.

[0006]

A crane-combined gondola device according to the present invention that achieves the above object synchronizes a plurality of hanging rope members with a trolley provided on a roof of a building so that the trolley can be turned by a turning mechanism. An elevating and lowering drive mechanism for winding and unwinding is provided, and an extendable and retractable support arm member provided with a suspending head for suspending the suspending rope member from both ends at its tip end can be swung up and down by an elevating mechanism. A plurality of hanging rope members that are provided along with the supporting arm member from the lifting drive mechanism and that are hung from the hanging head so that the hanging metal member having a hooking means can be lifted and lowered. The work floor can be suspended and supported from the suspension fitting member via a connecting member to be used as a gondola device, and the suspension can be used. Characterized in that it is configured to be used as a crane apparatus for supporting a load by said hooking means by removing the connection member, and the working floor from ingredients member.

Further, the four hanging wires are connected to the four corners of the hanging metal member, and the lifting drive mechanism is
A winding drum, in which winding regions for winding the respective hanging rope members are arranged in parallel in the axial direction, is provided movably in the central axis direction, and a rotation drive mechanism for rotationally driving the winding drum. And a feeding mechanism that reciprocates the winding drum in the length of the winding area in synchronization with the rotation of the winding drum, and the hanging ropes are provided in the winding areas by the rotation of the rotation drive mechanism. The member can be synchronously wound up in multiple layers and unrolled, and the suspension head is attached to a front and rear swing arm pivotally attached to the tip of the support arm member so as to be swingable in the front and rear direction by a front and rear swing shaft, A lateral arm member that hangs the suspension rope member from both front and rear ends is provided so as to be pivotable on a pivot axis orthogonal to the front-back swing axis, and the front-back swing arm is operated in conjunction with the hoisting mechanism to operate the front-back swing arm. Turning And a head horizontal maintaining mechanism for maintaining the vertical position of the suspension head, and a routing path length invariant means for preventing a change in the routing path length of each of the suspension rope members due to the turning of the suspension head. And

Further, the leveling mechanism is provided between the drive side moving point and the drive side fixed point, which are respectively set at predetermined distances from the arm swinging base point on the swinging mounting base portion of the supporting arm member on the carriage. A mounted head swing drive cylinder,
A driven side moving point and a driven side fixed point set at a distance equal to the distance between the arm swinging base point and the driving side moving point from the head swinging base point on the swing mounting base part of the suspension head on the support arm member. A head leveling operation cylinder mounted between the head leveling operation cylinder and the head leveling operation cylinder, which is connected via fluid interlocking means, and is linked to expansion and contraction of the head rocking drive cylinder accompanying the ups and downs rocking of the support arm member. It is characterized in that the cylinder is expanded and contracted to swing the suspension head at the same angle as the undulating swing of the support arm member.

Further, the routing route length invariant means is provided in the turning sheave formed in the hollow, and at the turning sheave center portion of the lateral arm member and the collective sheave provided in the front and rear swing shafts. With the dispersing sheave, the four suspending rope members are configured to be routed through the center of the turning shaft, and the suspending rope member via the dispersing sheave has an end portion of the lateral arm member. It is characterized in that it is configured to be installed in the hanging sheave provided in the.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a side view of an example of the configuration of a crane-combined gondola device according to the present invention, and FIG. 2 is a front view excluding its working floor.

The gondola device 1, which also serves as a crane, is constructed from a telescopic boom 40 as a support arm member of a trolley 10 movably provided along a guide rail 2B laid along an outer wall surface 2A on the roof of a building 2. , Four hanging wires 3 (3A, 3B, 3C, as hanging rope members)
3D), and a gondola cage 4 as a working floor is suspended and supported by the suspension wire 3 and the carriage 1
Lifting device 5 as a lifting drive mechanism provided inside 0
Winding of the suspension wire 3 by 0 (not shown in FIG. 2)
It is configured to raise and lower the gondola cage 4 by feeding it out. The tip of the hanging wire 3 is connected to a hanging metal fitting 90 as a hanging metal fitting member provided with a hook 93 as a hooking means, and the gondola cage 4 is usually connected to the hanging fitting 90 via a connecting bar 5 as a connecting member. In addition to being used as a gondola device, by removing the connecting bar 5 and the gondola cage 4 from the hanging fitting 90, the hook 93 of the hanging fitting 90 can be loaded and used as a crane. is there.

The structure of each section will be described in detail below. The trolley | bogie 10 is the expanded side view of FIG. 3, and is a rear view of FIG.
As shown in FIG. 3, a chassis 20 including a traveling engaging portion 21 that engages with a guide rail 2B laid on the roof of the building 2.
On the upper part of the trolley via the slewing bearing 10A
Is provided so as to be rotatable around a vertical turning axis. That is, the outer ring of the slewing bearing 10A, which is a large ball bearing, is fixed to the upper surface of the chassis 20, and the inner ring is fixed to the lower surface of the base 31 of the trolley body 30, so that the trolley body 30 is rotatably supported by the chassis 20. Furthermore, a drive gear fixed to the rotation shaft of a swing drive motor 10B, which is a hydraulic motor provided in the carriage body 30, meshes with a gear formed on the outer surface of the outer ring, and the swing drive motor 10B causes the carriage body 30 to move to the chassis. It is designed to be driven to rotate with respect to 20.

The traveling engaging portions 21 are arranged at four corners on the lower surface side of the chassis 20, and have a traveling wheel 21A mounted on the upper surface of the upper flange of the guide rail 2B and an engaging wheel 21B positioned below the upper flange. Is engaged with the guide rail 2B so as not to fall off. A traveling motor 22 is provided in the one traveling engagement portion 21 even if it is directly connected to the traveling wheel 21A. The traveling motor 22 rotationally drives the traveling wheel 21A, whereby the carriage 10 is guided to the guide rail 2B. It is designed to run along.

In the carriage main body 30, a support column 32 is erected on a substantially central upper surface of a base portion 31 and a machine chamber 33 is provided around the support column 32. The support column 32 supports the telescopic boom 40, and the inside of the machine chamber 33. An elevating device 50 is disposed in the housing.

The telescopic boom 40 is pivotally attached to the support column 32 at the base end thereof by a swing shaft 34 as an arm swing base so as to be swingable in a vertical plane, and is swingable near the front side of the pivot portion. It is supported by a hoisting cylinder 41 as a hoisting mechanism interposed between the operating point and the base 31 of the bogie main body 30 so as to be rockably driven within a predetermined angle range. Also,
It is expandable / contractible in a plurality of stages (three stages in this configuration example), and is extended / contracted by an internal hydraulic cylinder (not shown).

As shown in FIG. 5, a partial cross-sectional view seen from the back side, FIG. 6 is a plan view, and FIG. 7 is a left side view corresponding to the arrow A view of FIG. Hanging wires 3A, 3
Each winding area 53a, 53b corresponding to B, 3C, 3D,
A drum unit 51 having a winding drum 53 having 53c and 53d is fed to the base 31 of the carriage main body 30 by a feed mechanism 5.
The suspension wires 3A, 3B, 3C and 3D are wound around the winding regions 53a, 53b, 53c and 53d, respectively, so as to be capable of reciprocating in the axial direction via the winding wire 2.

The drum unit 51 includes a pair of support side plates 51Aa, 5A, as shown in FIG. 8 which is a conceptual perspective view seen from a diagonal front side and FIG. 9 which is a conceptual sectional view seen from a rear side.
The winding drum 53 is rotatably supported between the frames 51A formed by connecting the four corners of the 1Ab with stays 51Ac at predetermined intervals, and one supporting side plate 51Aa.
The take-up motor 54 with an electromagnetic braking device is provided with the electromagnetic braking device on the other support side plate 51Ab.
5 is provided, and the winding motor 54 is configured to rotationally drive the winding drum 53 via the speed reducer 55.
Then, the four corners of the lower surface (the left and right supporting side plates 51Aa, 51Ab
Guide blocks 56 fixed to the upper surface of the base 31 of the carriage main body 30.
It is slidably fitted to the take-up drum 53 and is provided so as to be movable in the axial direction of the take-up drum 53. It is designed to move back and forth with a stroke of.

The winding drum 53 is a cylindrical drum 53A.
Is equally divided into four winding regions 53a, 53b, 53c, 53d in the axial direction by the partition plate 53B, and the annular shafts 53C, 53D projecting at both ends respectively support the side plates 51Aa, 51Aa via bearings. 51Ab is rotatably provided, and one of the annular shafts 53D is coupled to the output shaft of the speed reducer 55 mounted on the outer surface side of the support side plate 51Ab, and is rotationally driven by the rotation output of the speed reducer 55 to rotate each winding. The suspension wires 3A, 3B, 3C and 3D are wound around the take-up areas 53a, 53b, 53c and 53d, respectively.

The speed reducer 55 has an annular output shaft arranged concentrically on the outer peripheral side of the input shaft, and the input shaft penetrates the center of the winding drum 53. 57
Is connected to the rotation shaft of the winding motor 54, which is mounted on the outer surface side of the support side plate 51Aa opposite to the speed reducer 55 with its rotation axis aligned with the rotation center of the winding drum 53. As a result, the rotational force of the winding motor 54 causes
It is input to the speed reducer 55 via 7 and is rotated at a predetermined speed reduction ratio to rotate the winding drum 53.

The feed mechanism 52 is shown in FIG.
As shown in the enlarged view of the part and the gear arrangement view in (B), the sprocket 52A fixed to the annular shaft 53C of the take-up drum 53 on the take-up motor 54 side and the reduction gear provided under the support side plate 51Aa. The sprocket 52C fixed to the input shaft of the train 52B is linked by a chain 52D, and the drum swing shaft 52E directly connected to the output shaft of the reduction gear train 52B is fixed to the base 31 of the carriage main body 30. It is configured by fitting to 52F.

Although not shown, the drum swing shaft 52E is provided with an operation key groove (not shown) in which both ends of the clockwise and counterclockwise spirals are continuous, and the operation key groove is provided in the operation key bearing 52F. When a non-operating key is fitted and the drum swing shaft 52E rotates, the drum swing shaft 52E reciprocates in the axial direction within the range where the operating key groove is formed. With such a configuration, the drum swing shaft 52E rotates in synchronization with the rotation of the winding drum 53, and as a result, the entire drum unit 51 reciprocates in the rotation axis direction.

Here, the reciprocating movement width of the drum swing shaft 52E (that is, the reciprocating movement amount of the drum unit 51) defined by the operation key groove is equal to the width of the winding regions 53a, 53b, 53c, 53d of the winding drum 53. The suspension wires 3A, 3B, 3 which are set equally and are wound around the respective first sheaves 61 of the rope routing sheave group 60 described later.
The winding areas 53a, 53b, 53c, 53d for C and 3D
Winding without any gap, the winding position is 53a, 53b,
When it reaches the side edges of 53c and 53d, the moving direction is reversed and it is wound in multiple layers.

Drum unit 5 constructed as described above
The winding motor 54 is driven to rotate by the winding motor 54, and the winding region 5 is axially wound in accordance with the rotation.
The suspension wires 3A, 53b, 53c, and 53d are reciprocally moved, and the suspension wires 3A, 3B, 3C, and 3D are wound and unwound in multiple layers on the respective winding regions 53a, 53b, 53c, and 53d. In this way, the hanging wires 3A, 3B, 3C,
By taking 3D as a multi-layer winding, each winding region 53a, 5
The widths of 3b, 53c, 53d can be reduced, and as a result, the winding drum 53 can be configured to be short and compact, and the winding / unwinding amounts of the respective hanging wires 3A, 3B, 3C, 3D can be perfectly synchronized. Can be made.

The suspension wire 3 is routed from the elevating device 50 through the route shown in FIG. 11, which is a routing route diagram. That is,
The four suspension wires 3A, 3B, 3C and 3D are respectively wound areas 53a and 5a of the winding drum 53 of the lifting device 50.
3b, 53c, 53d are placed in an adjacent side-by-side state via a rope routing sheave group 60 arranged on the upper side of the drum unit 51, and an arm base sheave 71 and a telescopic arm provided on the upper side of the base end portion of the telescopic boom 40. A suspension head 80, which will be described later, is reached via an arm tip sheave 72 provided on the upper side of the tip of the boom 40, and a swing fulcrum sheave 73 provided on the suspension head 80 is wound around a dispersion sheave 74 to be described later. The hanging sheaves 75 arranged at the four corners of the hanging beam 82 are vertically hung down and are respectively connected to the four corners of the hanging metal fitting 90.

The rope installation sheave group 60 includes the carriage main body 30.
The first sheave 61 fixed to the base 31 of the first sheave 61 and disposed on the support plate 58 horizontally located above the drum unit 51.
(61A, 61B, 61C, 61D), positioning reversing sheave 62 (62A, 62B), positioning reversing sheave pair 6
3 (63A, 63B) and a collective sheave 64.

First sheave 61 (61A, 61B, 61
C, 61D) is a rotary shaft of the take-up drum 53, which is located at the upper rear part of the take-up drum 53, on the center extension of the reciprocating range of the take-up regions 53a, 53b, 53c, 53d. Are arranged in parallel with.

The positioning reversing sheave 62 and the positioning reversing sheave pair 63 reverse the installation direction of the suspension wire 3 wound around each of the above-mentioned first sheaves 61 and correspond to the sheaves 64A, 64B and 84C of the collective sheave 64. , 64
The rotary shaft is arranged vertically on the front upper part of the winding drum 53 so as to reach the D straightly. That is, the two suspension wires 3B and 3C located on the central side are guided by the positioning reversing sheaves 62A and 62B to guide the sheaves 64B and 64C of the collective sheave 64, and the two suspension wires located at both ends. The hanging wires 3A and 3D of the sheave 64A of the collective sheave 64 are arranged by reversing the installation direction by the pair of reversing sheaves 63A and 63D by the two sheaves.
It is designed to lead to 64D.

The collective sheave 64 includes the suspension wires 3A and 3A.
Sheaves 64A, 64B, 8 corresponding to B, 3C, 3D
4C and 64D are laminated, and the rotation shaft is arranged in the center of the front upper width direction of the winding drum 53 in parallel with the rotation shaft of the winding drum 53.

Rope installation sheave group 60 having such a configuration
The suspension wires 3A, 3B, 3 which are wound and unwound on the respective winding regions 53a, 53b, 53c, 53d by
C and 3D are put together in a collective sheave 64. First sheave 6
1 to the winding regions 53a, 53b, 5 of the winding drum 53
Hanging wires 3A, 3B, 3C, 3D reaching 3c, 53d
Is orthogonal to the rotation axis of the winding drum 53, and the hanging wire 3
A, 3B, 3C and 3D are winding areas 53a, 53b and 53
When wound on c, 53d (or hanging wires 3A, 3d)
B, 3C and 3D are winding regions 53a, 53b, 53c and 5
3d), the movement of the drum unit 51 (winding drum 53) in the axial direction is synchronized with the rotation of the winding drum 53 associated with the winding or unwinding by the action of the feeding mechanism 52 described above. The condition is to be maintained. That is, the hanging wire 3
The movement of the winding position due to the spiral winding of A, 3B, 3C, and 3D is offset by the movement of the drum unit 51 (winding drum 53), so that the suspension wires 3A and 3A.
The paths of B, 3C, and 3D are always constant, so that it is possible to prevent the path length change due to the angle change of the suspension wire 3 from the first sheave 61 to the winding drum 53. Is. Also, one primary sheave 6
A load sensor (not shown) is provided on the rotary shaft of 1B, and the load acting on the primary sheave 61B is detected by this load sensor, and the hanging load can be known when using it as a crane by this load detection information. It is like this.

The suspension head 80 is shown in a side view in FIG.
As shown in the sectional view seen from the front side in FIG. 13 and the plan view in FIG. 14, as a lateral arm member of a predetermined length, which is provided with hanging sheaves 75 at front and rear positions on both ends corresponding to the four corners of a hanging fitting 90 described later. A hanging beam 82 is attached to the tip of the telescopic boom 40 via a front and rear swing arm 81.

The front-back swing arm 81 is swingably pivoted at a lower portion by a front-back swing shaft 83 as a head swing base point which is orthogonal to the up-and-down swing surface of the telescopic boom 40, and the front-back swing arm 81 is forward and backward. A hanging beam 82 is rotatably supported by a beam turning shaft 84 that is orthogonal to the swing shaft 83. Further, a rod tip of a front / rear rocking cylinder 85 as a head rocking operation cylinder is pivotally mounted (driven side moving point 85b) to a pivotally mounted portion 81A protruding from the front lower part thereof. Has its base end pivotally attached (driven side fixing point 85a) to a pivoting portion 40A projecting below the tip of the telescopic boom 40, and is provided in a region below the front-rear swing shaft 83. The swing cylinder 85 can swing the front-back swing arm 81 with respect to the telescopic boom 40.

Four oscillating fulcrum sheaves 73 are rotatably mounted on the front-rear oscillating shaft 83, and the tangent line of the wrapping diameter portion of the oscillating fulcrum sheave 73 is the central axis of the beam pivot shaft 84. It is set to almost match.

The beam swivel shaft 84 is formed hollow, and the inside of the beam swivel shaft 84 extends from the swing fulcrum sheave 73 to the dispersion sheave 74.
The hanging wire 3 leading to is connected.

The hanging beam 82 is a beam 82 having a predetermined length.
Four distributed sheaves 74 (74A, 74B, 7 in the center of A)
4C, 74D) and the hanging sheaves 75 (75A, 75B, 75) corresponding to the hanging positions (four corners) of the hanging metal fitting 90 at the four corners of the end of the beam 82A, respectively.
C, 75D) are provided. Each of the dispersing sheaves 74 is located such that the center line of the beam swivel shaft 84 is substantially a tangent to the winding diameter, and its rotation surface is provided so as to coincide with each of the corresponding hanging sheaves 75. That is, the dispersing sheave 74 located at the center of the beam 82A and the hanging sheave 7 located at the four corners of the end of the beam 82A.
Reference numeral 5 denotes a pair in which the planes of rotation coincide with each other, and four such sheave pairs are provided. As a result, the suspension wire 3 routed from the arm tip sheave 72 at the tip of the telescopic boom 40 is hung around the swing fulcrum sheave 73, the diffusion sheave 74, and the hanging sheave 75 so as to hang down.

A horizontal rocking cylinder 86 is installed between the operation projection 82B projecting on the central side of the beam 82A and the tip of the bracket 81A mounted on the side surface of the front-back rocking arm 81. This horizontal swing cylinder 86
Thus, the hanging beam 82 can be swung about the beam swivel axis 84 with respect to the telescopic boom 40 within a predetermined angle range.

The suspension head 8 constructed as described above
At 0, the hanging beam 82 swings about the front-back swing shaft 83 by driving the front-back swing cylinder 85, and swings about the beam swing shaft 84 by driving the horizontal swing cylinder 86.

Here, four suspension wires 3A, 3B, 3C and 3D from the swing fulcrum sheave 73 to the dispersion sheave 74 are provided.
Are routed inside the beam swivel axis 84 so as to substantially coincide with the swivel center of the drooping beam 82.
The wiring path length does not change even by the turning of the hanging head 80, and therefore the turning of the suspension head 80 causes a difference in the wiring path length to suspend and support the hanging metal fitting 90.
Does not tilt (that is, the gondola cage 4 supported by the hanging metal fitting 90 via the connecting bar 5 does not tilt). That is, the swing fulcrum sheave 7
The suspension wire 3 is inserted and routed at the center of the beam swivel shaft 84 by the 4 and the dispersing sheave 75, thereby constructing the routing path length invariant means.

The front-back swing cylinder 85 is, as conceptually shown in FIG. 15, a horizontal maintenance drive cylinder 42 as a head horizontal maintenance drive cylinder mounted on the base of the telescopic boom 40, and a hydraulic tube as fluid interlocking means. They are connected via 100 to form a horizontal maintaining mechanism.

That is, the horizontal maintaining drive cylinder 42 is a hydraulic cylinder having at least the same cylinder inner diameter as the front and rear swing cylinder 85, and its base end portion is provided in the middle of the front side of the support column 32 supporting the telescopic boom 40. And the tip of the rod is pivoted forward and obliquely upward of the swing shaft 34 of the telescopic boom 40 (driving side moving point 42b). The distance between the pivot point (driving-side moving point 42b) of the horizontal maintaining drive cylinder 42 to the telescopic boom 40 and the swing shaft 34 is provided in the upper region, and the front-back swing arm 81 swings back and forth. Axis 8
3 is set to be equal to the distance between the tip end pivot point of the front and rear swing cylinder 85 (driven side moving point 85b) (distance 1). As a result, as shown in the schematic diagram in the drawing, the range of movement of the drive-side moving point 42b due to the oscillating movement of the telescopic boom 40 and the front-rear oscillating arm 8 regardless of the undulating oscillation of the telescopic boom 40.
1 (beam turning shaft 84) to maintain the vertical state (that is, so that the hanging beam 82 of the hanging head 80 maintains horizontal), the moving range of the driven side moving point 85b (angle θ) ) Are equal (however, the rocking direction is opposite), and further, the base end pivotal point of the horizontal maintenance drive cylinder 42 (driving side fixed point 42a) and the base end pivotal point of the front-rear rocking cylinder 85 (driven). The side fixed points 85a) are set so that the expansion / contraction displacement amounts (L1-L2) of the horizontal maintenance drive cylinder 42 and the front-back swing cylinder 85 due to the movement of the drive-side movement point 42b or the driven-side movement point 85b are substantially equal. ing. The horizontal maintenance drive cylinder 42 and the front-back swing cylinder 85 are connected by a flexible hydraulic tube 100 so as to interlock with each other. In the illustrated configuration example,
Due to the arrangement of the horizontal maintenance drive cylinder 42 and the front-back swing cylinder 85, the horizontal maintenance drive cylinder 42 must be extended by the standing swing of the telescopic boom 40, and the forward-backward swing cylinder 85 must be shortened synchronously. The sustain drive cylinder 42 and the front-rear swing cylinder 85 have extension-side oil chambers, and contraction-side oil chambers have hydraulic tubes 100.
Are connected by this, and thereby they are interlocked with each other in opposite directions. The hydraulic tube 100 is wound around a reel 43 arranged below the base of the telescopic boom 40 so that the hydraulic tube 100 can cope with the telescopic boom 40's extension and contraction.

With this structure, as shown in FIG. 18, when the telescopic boom 40 stands up and swings, the horizontal maintenance drive cylinder 42 extends, and in conjunction with this, the front-back swing cylinder 8 moves.
5 shortens to swing the forward / backward swing arm 81 to the front side at an equal angle, and acts to maintain the vertical state of the forward / backward swing arm 81 (beam swivel shaft 84). In this way, the front-rear swing arm 81 is always kept vertical according to the undulating swing angle of the telescopic boom 40, and as a result, the hanging beam 82 is kept horizontal.

The arrangement structure of the horizontal maintenance drive cylinder 42 and the front-back swing cylinder 85 is not limited to the above-described structure example, but can be changed appropriately. Further, in the above configuration example, the expansion and contraction of both cylinders 42 and 85 are reversed, but as shown in the conceptual diagram of FIG. 19, both cylinders expand and contract in the same manner to maintain the suspension head 80 horizontal. It is also a good configuration. The horizontal maintaining drive cylinder 42 'is exactly the same as the front-back swing cylinder 85, and the horizontal maintaining drive cylinder 42' is pivoted at both ends thereof (drive side fixed point 42a ', drive side moving point 42b'). ) And the pivot shaft 34, when turned upside down, pivots both ends of the front-rear rocking cylinder 85 (driven side fixed point 85a, driven side moving point 85).
It is installed so as to be congruent with the triangle formed by b) and the front and rear swing shaft 83, and the horizontal maintenance drive cylinder 42 'is provided.
The oil chamber on the extension side and the oil chamber on the contraction side of the front-back swing cylinder 85,
The contraction-side oil chamber of the horizontal maintenance drive cylinder 42 'and the expansion-contraction oil chamber of the front-rear rocking cylinder 85 are connected by hydraulic tubes (not shown) so that the horizontal maintenance drive cylinder 42' and the front-rear rocking cylinder 85 expand and contract in the same direction. It is something that is done.

The ends of the four suspension wires 3 suspended from the suspension head 80 are connected to suspension metal fittings 90, respectively.

As shown in FIG. 16 which is a partial cross-sectional side view and FIG. 17 which is a plan view, the hanging metal fitting 90 has a vertical beam having a length substantially equal to the width of the gondola cage 4 at both ends of a horizontal beam 91 having a predetermined length. 92 is fixed and is formed in a short H-shape in a plan view.
3, the suspension wire 3 is connected to the upper ends of the connecting portions 92A provided at both ends of the vertical beam 92, and the upper ends of the connecting bars 5 are connected to the lower ends thereof.

The lower ends of the connecting bars 5 are connected to the gondola cage 4 near the four corners thereof, so that the gondola cage 4 is suspended and supported by the suspending wire 3 via the suspending fitting 90 and the connecting bar 5.

In the crane-combined gondola device 1 constructed as described above, the trolley 10 travels along the guide rail 2B laid on the roof by the traveling motor 22, and the trolley body 30 having the telescopic boom 40 is installed. The rotation drive motor 10C rotates about the rotation axis to move the lifting device 5
The gondola cage 4 is attached to the suspension boom 90 by four suspension wires 3 arranged along the telescopic boom 40 from 0.
Suspend and support. The telescopic boom 40 expands and contracts by an internal hydraulic cylinder, and the undulating cylinder 41
It swings within a predetermined angle range in the vertical plane. And
The gondola cage 4 is moved up and down along the outer surface of the building by winding and unwinding the suspension wire 3 by the elevating device 50, and is horizontally moved by traveling along the guide rails 2B of the carriage 10, and the telescopic boom 40 is also telescopic. Further, the gondola cage 4 which is suspended and supported can be moved back and forth, left and right, or can be lifted up on the roof by swinging the undulation and turning the carriage 30.

Here, the four suspension wires 3 are used for the lifting device 5.
It is wound up and paid out completely in synchronization with 0, and the hanging metal fitting 90 is stably hung and supported horizontally by these four hanging wires 3. Also, the hanging head 8
The hanging beam 92 of 0 is always maintained in a horizontal state by the horizontal maintaining mechanism regardless of the up-and-down swing angle of the telescopic boom 40.
Further, the wiring path length invariant means does not change the wiring path length of each suspension wire 3 even when the suspension head 80 is rotated, and the hanging metal fitting 90 is always kept horizontal. Therefore, the gondola cage 4, which is suspended and supported from the suspending metal member 90 via the connecting bar 5, is always kept horizontal and can be moved safely.

On the other hand, the hanging bar 90 to the connecting bar 5
A crane is formed by removing the (gondola cage 4), and a load is hooked and supported by a hook 93 provided on the hanging metal fitting 90, and the hanging wire 3 is taken up / taken out by the elevating device 50, traveling of the carriage 10 and the telescopic boom 40. The load can be hoisted on the roof or hung from the roof by the expansion / contraction, undulation swinging, and turning of the carriage main body 30.

Incidentally, the horizontal maintaining mechanism and the routing route length invariant means are not limited to the above-mentioned construction, but can be changed appropriately. For example, as the horizontal maintenance mechanism, a horizontal sensor may be provided at the tip of the telescopic boom and configured to swing and drive so as to maintain the horizontal based on the detection information,
Further, the swinging drive is not limited to the hydraulic cylinder, and other configurations such as screw drive may be used.

[0049]

As described above, according to the gondola device of the present invention, a plurality of hanging rope members are synchronously wound around a bogie provided on the roof of a building so that the bogie can be turned by a turning mechanism. An elevating and lowering drive mechanism for picking up and feeding out is provided, and an extendable and retractable support arm member provided with a suspending head for suspending a suspending rope member from both ends thereof at a tip end thereof is provided so as to be capable of undulating and swinging, A plurality of hanging rope members arranged along the support arm member from the lifting drive mechanism and hung from the hanging head suspend and support a hanging metal member having a hooking means so that the hanging metal member can be lifted and lowered. It can be used as a gondola device by suspending and supporting the working floor via the connecting member, and removing the connecting member and working floor from the hanging metal member to hook it. By being configured to be used as a crane apparatus for supporting a load by means can divert gondola device very easily the crane. As a result, it can be used as a gondola device for maintenance during normal operation, and can also be diverted to a crane during remodeling to be used for lifting and lowering loads such as replacing rooftop installation equipment for buildings, which is extremely rational. It saves time and money.

Further, the four hanging rope members are connected to the four corners of the hanging fitting member, and in the elevating and lowering drive mechanism, the winding regions for winding the respective hanging rope members are arranged side by side in the axial direction. The take-up drum is provided so as to be movable in the direction of its central axis, and a rotation drive mechanism that rotationally drives the take-up drum and the take-up drum is provided in the take-up area in synchronization with the rotation of the take-up drum. And a feeding mechanism that reciprocates at a length of 10 mm, and each hanging rope member can be synchronously wound into multiple layers and unwound in each winding area by rotation by a rotation drive mechanism, and the hanging head is a support arm. On the front-back swing arm pivotally attached to the tip of the member so that it can swing back and forth on the front-back swing axis, the horizontal arm member that hangs the hanging rope member from both front and rear ends is used as the swing axis orthogonal to the front-back swing axis. Turnable At the same time, the head horizontal maintenance mechanism that keeps the pivot axis vertical by operating the front and rear swing arms in conjunction with the hoisting mechanism, and the change in the routing path length of each hanging rope member due to the turning of the hanging head By including the wiring route length invariant means for preventing, the hanging metal member and the work floor can be stably supported by the four hanging rope members, and at the same time, It is possible to downsize the bogie by compactly constructing an elevating mechanism for winding and unwinding the hanging rope member.

Further, the leveling mechanism is mounted on the swing mounting base of the support arm member on the carriage between the drive side moving point and the drive side fixed point which are set at predetermined distances from the arm swinging base point. A head swing drive cylinder, and a driven side movement point set at a distance equal to a distance between the arm swing base point and the drive side movement point from the head swing base point on the swing mounting base of the suspension head on the support arm member. A head horizontal maintaining operation cylinder mounted between the driven side fixing point and the head horizontal maintaining operation cylinder is connected through a fluid interlocking device, and the head is interlocked with expansion and contraction of the head rocking drive cylinder accompanying the ups and downs of the support arm member. The horizontal maintenance operation cylinder is configured to expand and contract to swing the suspension head at the same angle as the up-and-down swing of the support arm member. The head can be oscillated in synchronism with the ups and downs of the support arm member to maintain the horizontal position, and the four suspension rope members stably support the suspension metal member and the work floor while supporting the support arm member. It can be undulated and rocked.

Further, in the arrangement route length invariant means, the turning shaft is formed hollow, and a collective sheave provided on the front and rear swing shafts and a dispersing sheave provided on the turning center portion of the lateral arm member. The four suspension rope members are configured to be inserted and routed in the center of the turning shaft, and the suspension rope members via the distribution sheave are arranged on the suspension sheaves provided at the ends of the lateral arm members. Since it is configured to be hung, the routing path length of the four hanging rope members does not change even when the hanging head turns, so the hanging metal member and work floor are stably supported while hanging. The lowering head can be swiveled.

[Brief description of drawings]

FIG. 1 is a side view of a configuration example of a crane and gondola device according to the present invention.

FIG. 2 is a front view excluding the work floor.

FIG. 3 is an enlarged side view of the bogie.

FIG. 4 is a rear view of the carriage.

FIG. 5 is a partial cross-sectional view of the lifting device viewed from the back side.

FIG. 6 is a plan view of the lifting device.

FIG. 7 is a left side view of the lifting device corresponding to the view seen from the arrow A in FIG.

FIG. 8 is a conceptual perspective view of the drum unit as seen obliquely from the front side.

FIG. 9 is a conceptual cross-sectional view of the drum unit as viewed from the back side.

10A and 10B show a feed mechanism, FIG. 10A is an enlarged view of an X portion in FIG. 5, and FIG. 10B is a view showing a gear arrangement thereof.

FIG. 11 is a wiring route diagram of a suspension wire.

FIG. 12 is a side view of the suspension head.

FIG. 13 is a cross-sectional view of the hanging head viewed from the front side.

FIG. 14 is a plan view of a suspension head.

FIG. 15 is a conceptual configuration diagram of a head horizontal maintaining mechanism.

FIG. 16 is a partial cross-sectional side view of the hanging metal member.

FIG. 17 is a plan view of a hanging metal member.

FIG. 18 is an explanatory diagram of a head horizontal maintaining mechanism.

FIG. 19 is an explanatory diagram of a different configuration example of the head horizontal maintaining mechanism.

[Explanation of symbols]

1 Crane and Gondola Device 2 Building 3 Suspending Wire (Suspending Rope Member) 4 Gondola Cage (Work Floor) 5 Connecting Bar (Connecting Member) 10 Bogie 10A Bearing (Swinging Mechanism) 10B Slewing Drive Motor (Swinging Mechanism) 34 Swing Moving axis (base point for swinging) 40 Telescopic beam (support arm member) 41 Elevating cylinder (elevating mechanism) 42 Horizontal maintaining drive cylinder (head horizontal maintaining drive cylinder, head horizontal maintaining mechanism) 42a Drive side fixed point 42b Drive side moving point 50 Lifting device (elevating drive mechanism) 52 Feeding mechanism 53 Winding drums 53a, 53b, 53c, 53d Winding area 73 Swing fulcrum sheave (wiring path length invariant means) 74 Dispersive sheave (swing fulcrum sheave) 75 Hanging sheave 80 Suspending head (winding / unwinding mechanism) 81 Front-rear swing arm 82 Hanging beam ( Horizontal arm member) 83 Front-rear rocking shaft (base point for rocking) 84 Beam turning shaft (wiring path length invariant means) 85 Front-rear rocking cylinder (head rocking operation cylinder, head horizontal maintaining mechanism) 85a Driven side fixed point 85b Driven side moving point 90 Suspension fitting (Suspension fitting member) 93 Hook (Hooking means) 100 Hydraulic tube (Fluid interlocking means)

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) B66D 1/39 B66D 1/39 F term (reference) 3F004 CB08 3F205 AA13 BA06 BA10 CA03 CB02 KA10

Claims (4)

[Claims] 1. A trolley provided on the roof of a building so that the trolley can be rotated by a slewing mechanism is provided with an elevating and lowering drive mechanism for synchronously winding and unwinding a plurality of hanging rope members, and both ends thereof are provided at the tip. An extensible supporting arm member provided with a hanging head that hangs the hanging rope member so as to be pivotable is provided by a hoisting mechanism so as to be capable of hoisting and swinging, and is routed from the lifting drive mechanism along the supporting arm member. A hanging metal member having a hooking means is hung and supported by the plurality of hanging rope members hanging from the hanging head, and the work floor is hung from the hanging metal member via a connecting member. It can be used as a gondola device by supporting it, and the load can be supported by the hooking means by removing the connecting member and the working floor from the hanging metal member. Crane combined gondola apparatus characterized by being configured to be used as a crane apparatus that. 2. The four hanging rope members are coupled to the four corners of the hanging metal member, and in the lifting drive mechanism, winding regions for winding the hanging rope members are aligned in the axial direction. The winding drum is provided so as to be movable in the direction of the central axis thereof, and the rotation driving mechanism for rotating the winding drum and the winding drum are synchronized with the rotation of the winding drum. A feed mechanism that reciprocates within the length of the take-up area, and each hanging rope member can be wound up in a multi-layer in a synchronous manner in the respective take-up areas by the rotation of the rotation drive mechanism, and can be fed out. The head is a front-back swing arm pivotally attached to the tip of the support arm member so as to be swingable in the front-back direction by a front-back swing shaft, and a horizontal arm member that hangs the suspension rope member from both front and rear ends swings back and forth. Axis of motion A head horizontal maintaining mechanism that is provided so as to be pivotable on orthogonal pivot axes and that operates the front and rear swing arms in conjunction with the hoisting mechanism to maintain the pivot axis vertically; and 2. The crane-combined gondola device according to claim 1, further comprising: a routing-path-length-invariant unit that prevents a change in the routing path length of each suspension rope member. 3. The leveling mechanism is provided between a drive-side moving point and a drive-side fixed point, which are set at predetermined distances from an arm swinging base point on a swinging mounting base portion of the support arm member on the carriage. The mounted head swing drive cylinder and the swing mount base of the suspension head on the support arm member are set to a distance equal to the distance between the arm swing base point and the drive side moving point from the head swing base point. A head horizontal maintaining operation cylinder mounted between the driven side moving point and the driven side fixed point is connected via a fluid interlocking means, and the head swinging drive cylinder of the head swinging drive cylinder accompanying the up and down swinging of the supporting arm member is connected. 3. The head horizontal maintenance operation cylinder is configured to expand and contract in association with expansion and contraction to swing the hanging head at the same angle as the up and down swing of the support arm member. Of the crane combined gondola system. 4. The wiring path length invariant means is provided at the turning sheave formed in the hollow, the collective sheave provided on the front and rear swing shafts, and the turning center portion of the lateral arm member. With the dispersing sheave, the four suspending rope members are configured to be routed through the center of the turning shaft, and the suspending rope member via the dispersing sheave has an end portion of the lateral arm member. The gondola device also serving as a crane according to claim 2, wherein the gondola device is also configured to be routed to a hanging sheave provided in the.