JP3849797B2 - Suspension cart moving mechanism in gondola device - Google Patents

Description

  The present invention provides a suspension arm supported on a suspension arm member supported by a support pillar member so as to be movable along the suspension arm member, and a work floor via a suspension rope member suspended from the suspension carriage. The present invention relates to a mechanism for moving a suspension carriage in a gondola apparatus that is suspended and supported so as to be liftable.

  A gondola device is used in which a working floor is suspended and supported by a hanging rope suspended from the upper part of the building for window cleaning or exterior wall maintenance inspection in a high-rise building.

  An example of such a gondola apparatus is disclosed in Patent Document 1. This is made up of a carriage equipped with a winding mechanism and a lifting arm that can be lifted and swung so as to be movable along a rail laid along the outer wall surface of the building roof. The hoisting rope that supports the suspended gondola cage is wound and unwound by the take-up mechanism to raise and lower the gondola cage, move along the rails of the carriage, and move horizontally along the wall. The arm moves up and down and swivels in a direction that moves away from the wall of the gondola cage.

  By the way, in the building by the core method that is constructed by extending the floor around the core, the carriage provided with the winding mechanism cannot often be disposed in the peripheral portion because of the strength of the rooftop floor. For a thing, a gondola device having a structure (hereinafter referred to as a swivel arm type) such as a horizontal jib crane in which a suspension arm member is supported so as to be able to swivel horizontally at the center upper portion of the core portion is used.

  As shown in a conceptual diagram in FIG. 9, a trolley (as shown in FIG. 9) is attached to a suspension boom 92 as a suspension arm member that is pivotably supported in a horizontal state by a support column 91 erected on a core of a building 2 ′. A suspension carriage 93 is provided so as to be movable along the suspension boom 92, and a gondola cage (work floor) 95 is suspended and supported by a suspension rope 94 suspended from the trolley 93. The gondola cage 95 is moved up and down by winding and unwinding the suspension rope 94 by a winding mechanism 96 provided in the vicinity of the supported portion of the suspension boom 92, and the gondola cage 95 is moved in the horizontal direction (moving back and forth and left and right). This is performed by turning the boom 92 and moving the trolley 93 along the hanging boom 92.

  The moving mechanism of the trolley 93 is such that a driving rope 97 arranged in a loop between the front and rear ends of the suspension boom 92 is coupled to the trolley 93, and the driving rope is driven around by a driving device (not shown). 93 is driven to move.

  A hanging beam 93A is provided at the center of the trolley 93 so as to be swingable about the vertical axis. The suspension rope 94 is suspended from both ends of the hanging beam 93A and coupled to both ends of the gondola cage 95. The posture of the gondola cage 95 in the horizontal plane can be changed by swinging the hanging beam 93A.

In addition, a counterweight 98 is provided on the rear end side of the suspension boom 92 with the supported portion interposed therebetween so as to be movable along the suspension boom 92. The weight balance of the entire suspension boom 92 is maintained. The weight of the counterweight 98 is set to be heavy with respect to the total weight of the trolley 93 and the gondola cage 95, and is configured to be able to handle a wide range of movement of the trolley 93 with a small amount of movement.
JP 2000-320133 A

  However, in the conventional swivel arm type gondola apparatus as described above, the movement direction of the trolley 93 and the counterweight 98 are opposite, and the movement amount differs depending on the weight ratio between the two, so that the trolley 93 is driven. There is a problem that the mechanism and the drive mechanism of the counterweight 98 are provided independently, and both the drive mechanisms need to be operated in synchronism, and the drive mechanism is complicated and control is troublesome.

  In addition, a power source (power or hydraulic pressure) supply cable for swinging the hanging beam 93 </ b> A included in the trolley 93 and a control cable for swing amount control are provided along the suspension boom 92 to the trolley 93. However, these cables require a troublesome structure such as hanging and supporting with a hanger so that the movement of the trolley 93 can be allowed.

  The present invention has been made in view of the above problems, and provides a suspension carriage moving mechanism in a gondola apparatus that can interlock a suspension weight and a suspension weight with different directions and amounts of movement with a simple configuration. Objective.

  The suspension carriage moving mechanism in the gondola device according to the first aspect of the present invention that achieves the above object is such that the suspension carriage is movable along the suspension arm member to the suspension arm member that is pivotally supported by the support column member. In the gondola device provided and supported to suspend and lift the work floor via a suspension rope member suspended from the suspension carriage, the suspension carriage and the supported portion of the suspension arm member by the support column member A counterweight member provided on the rear end side so as to be movable along the suspension arm member is coupled by an interlocking movement mechanism including a first pulley mechanism, a second pulley mechanism, and a drive mechanism. The first pulley mechanism includes a first drive cable having a base end fixed to a rear end side of the suspension arm member, and a first weight provided on the counterweight member. The second pulley mechanism is formed by winding and reversing the moving pulley member and winding and reversing the first fixed pulley member provided on the rear end side of the suspension arm member and coupling the tip to the suspension carriage. The second driving cable whose base end is fixed to the distal end side of the suspension arm member winds and reverses the second movable pulley member provided on the counterweight member, and at the distal end side of the suspension arm member The second fixed pulley member provided in the winding is reversed and the tip is coupled to the suspension carriage, and the drive mechanism moves the first drive cable or the second drive cable back and forth in the wiring direction. It is characterized by being comprised by the drive device which carries out movement drive.

  In this configuration, the first pulley mechanism and the second pulley mechanism are disposed symmetrically on the front and rear of the suspension arm member with the suspension carriage interposed therebetween, and the movement provided on the counterweight member with respect to the movement of the suspension carriage, respectively. The pulley members (the first movable pulley member and the second movable pulley member) are moving pulleys that move in opposite directions. For this reason, even if the driving cable is driven to move in either the front or back direction by the driving device, the suspension carriage moves in the driving direction by the same amount as the driving amount, while the counterweight determines the movement amount of the hanging carriage (the first It moves in the opposite direction by the amount divided by the number of reciprocation between the movable pulley member and the fixed pulley member. That is, the suspension carriage and the counterweight member, which are located across the supported portion by the support column member of the suspension arm member, are interlocked and separated by different amounts of movement depending on the driving of the driving device. Therefore, the position and weight of the counterweight member By appropriately setting, the weight balance of the entire suspension arm member can be maintained by the counterweight member regardless of the position of the suspension carriage.

  The suspension carriage moving mechanism in the gondola apparatus according to claim 2 is characterized in that the suspension carriage includes a suspended beam member that can swing about a vertical swing axis at the center in the longitudinal direction, and the work is performed respectively from both ends of the suspended beam member. The suspension rope that supports the floor is suspended, and the interlocking movement mechanism includes a first driving cable and a tip of the second driving cable on the left and right sides of the swing shaft, respectively, before and after the hanging beam member. Two sets are connected and arranged side by side, and the suspension carriage can be moved along the suspension arm member by the synchronous drive of the both interlocking movement mechanisms, and the hanging beam member can be moved by the differential of the both interlocking movement mechanisms. It is configured to be able to swing.

  In this configuration, the suspension carriage moves back and forth along the suspension arm member by the synchronous drive in the same direction of the left and right interlocking movement mechanisms, and the hanging beam member swings by the differential drive of the left and right interlocking movement mechanisms.

  The suspension carriage moving mechanism in the gondola apparatus according to claim 3 includes a detecting means for detecting a relative position of the counterweight member of the left and right interlocking movement mechanism, and the counterweight member of the left and right interlocking movement mechanism by the detecting means is provided. The swinging angle of the hanging beam member is detected based on the relative position information.

  In this configuration, since the relative position displacement of the left and right counterweight members corresponds to the swing angle of the hanging beam member, the swinging of the hanging beam member is based on the relative position information of the counterweight member of the left and right interlocking movement mechanism by the detection means. The moving angle is understood.

  The suspension carriage moving mechanism in the gondola apparatus according to claim 4 is characterized in that the driving device of the driving mechanism moves the winding position of the driving cable wound around the sheave rotated by the driving means by the rotation of the sheave. It is an endless winder that can be moved and operated.

  In this configuration, the winder that moves the driving rope wound around the sheave by rotating the sheave by the driving means moves the driving rope of the front and rear moving mechanism to move the suspension carriage and the counterweight member. .

  According to the suspension carriage moving mechanism in the gondola apparatus according to claim 1 of the present invention, the suspension carriage and the counterweight member can be moved away from each other by one driving device, and the movable pulley provided on the counterweight member Since the member becomes a moving pulley, the amount of movement of the counterweight member can be set smaller than the amount of movement of the suspension carriage. Can keep the weight balance.

  According to the suspension carriage moving mechanism in the gondola apparatus according to claim 2 of the present invention, the suspension carriage can be moved along the suspension arm member by synchronously driving the left and right interlocking movement mechanisms, and the left and right interlocking movements can be performed. The hanging beam member can be swung by differentially driving the mechanism. Thus, the suspension carriage can be moved and the hanging beam member can be swung by the same mechanism, and the power source supply cables for swinging the hanging beam member can be moved along the suspension arm member. Since the support structure for these cables is not necessary, the configuration can be simplified. In addition, the length of the suspension arm member can be easily changed.

  According to the suspension carriage moving mechanism in the gondola apparatus according to the third aspect, the swinging angle of the hanging beam member is detected by detecting the swing angle of the hanging beam member based on the relative position information of the counterweight members of the left and right interlocking movement mechanisms. It is not necessary to arrange control cables for dynamic control information along the suspension arm member to the suspension carriage, and the support structure for these cables is not necessary. Therefore, the configuration can be simplified and the length of the suspension arm member can be reduced. It is easy to change the size.

  According to the suspension carriage moving mechanism in the gondola apparatus according to the fourth aspect, since the drive apparatus of the drive mechanism is an endless winder, the drive mechanism can be extremely small and lightweight, and the entire gondola apparatus can be configured to be small and lightweight. it can.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a side view of a gondola apparatus to which one structural example of a suspension cart moving mechanism in a gondola apparatus according to the present invention is applied, and FIG. 2 is a plan view thereof.

  In the illustrated gondola device 1, a trolley 13 as a suspension carriage is provided on a boom 12 as a suspension arm member that is pivotally supported by a support carriage 11, and can be moved along the boom 12, and is suspended from the trolley 13. A gondola cage 15 as a work floor is supported by a suspension wire 14 as a suspended rope member so as to be lifted and lowered, and disposed on a track 2 </ b> A laid on the roof of the building 2. Further, the travel drive mechanism 16 that travels along the track 2 </ b> A, the swing drive mechanism 17 that swings the boom 12, the lift drive mechanism 18 that lifts and lowers the gondola cage 15, and the trolley 13 that moves along the boom 12. And a back-and-forth movement mechanism 20.

  The building 2 is constructed by a core method, and a track 2A is laid on the roof portion of the core so that the gondola device 1 is supported by the core portion. The upper outer wall surface 2B forms a step with respect to the lower outer wall surface 2C, and the lower outer wall surface 2C is straight when viewed in plan, whereas the upper outer wall surface 2B has a curved line. I'm drawing. That is, the outer wall surface 2B and the outer wall surface 2C are different in position and shape.

  For such a building 2, the gondola device 1 is configured to move the gondola cage 15 in the horizontal plane by traveling along the track 2 </ b> A of the support carriage 11, turning the boom 12, and moving the trolley 13 along the boom 12. By moving the gondola cage 15 up and down in the vertical plane, the gondola cage 15 is made to correspond to any position of the outer wall surfaces 31A and 32A of the building 2 and the outer wall surfaces 31A and 32A are cleaned and repaired. Is to do.

Hereinafter, each part of the gondola apparatus 1 will be described in detail.
As shown in the enlarged view of FIG. 3, the support carriage 11 includes a turning support portion 11B as a support column member on the upper side of the carriage base 11A, and a travel drive mechanism 16 on the lower side of the carriage base 11A.

  The turning support portion 11B is provided on the support carriage 11 so as to be movable up and down via a hydraulic lift 11C, and is coupled to a receiving portion 12A as a supported portion of the boom 12 through a bearing so that the boom 12 can turn freely. I support it. In the vicinity thereof, a turning drive mechanism 17 for turning the boom 12 is provided.

  The travel drive mechanism 16 includes a wheel group 16A that is movably engaged along the track 2A, and a drive motor 16B that drives the wheel group 16A, and rotationally drives the wheels of the wheel group 16A by the drive motor 16B. Thus, the vehicle travels along the track 2A.

  In the turning drive mechanism 17, a pinion fixed to the rotating shaft of the turning motor 17A provided in the receiving part 12A of the boom 12 meshes with the large-diameter gear 17B around the turning support part 11B, and the turning motor 17A rotates. The boom 12 can be pivotally driven with respect to the pivot support portion 12.

  The boom 12 is configured to have a predetermined length by connecting a plurality of truss units made of steel, and can be rotated to the support carriage 11 (the turning support portion 11B) by a receiving portion 12A formed on the rear end side from the center in the longitudinal direction. It is supported by. As shown in FIG. 4 which is an enlarged sectional view, guide rails 12B for engaging and supporting the trolley 13 on the left and right sides of the lower surface extend along the boom 12 on the front end side of the receiving portion 12A. A counterweight 19 as a counterweight member is movably provided along the boom 12 on the rear end side from the receiving portion 12A.

  As shown in FIG. 4, the trolley 13 is engaged with the guide rail 12B of the boom 12 with engagement wheels provided on both the left and right sides, and is provided on the boom 12 so as to be movable along the guide rail 12B. Further, a hanging beam 13A as a hanging beam member is provided.

  As shown in detail in FIG. 7, which will be described later, the hanging beam 13A is pivotally attached to the trolley 13 at the center in the longitudinal direction by a vertical swing axis: Z, and the suspension wires 14 are respectively attached from both ends thereof. It is drooping.

  The lifting wire 14 is connected to the gondola cage 15 at the tip, passes through the trolley 13 (hanging beam 13A), passes under the boom 12, and is disposed adjacent to the rear end side of the receiving portion 12 of the boom 12. It is routed to the drive mechanism 19. In FIG. 1 and FIG. 3, the suspension wire 14 is partially omitted because it overlaps with the drive line (drive wire 31 </ b> W) of the forward / backward movement mechanism 20 and is difficult to understand.

  Although not shown in detail, the elevating drive mechanism 18 includes two endless winders that drive the respective suspension wires 14, and the gondola cage 15 is moved up and down by pulling or extending the suspension wires 14 by the synchronized driving of each endless winder. It is like that.

  Although the detailed description of the structure of the endless winder is omitted, a moving rope (in this case, the suspension wire 14) is wound around a driving sheave as a sheave connected to a motor as a driving means via a speed reducer. The moving sheave is driven to move by rotating the driving sheave relative to the driving sheave by the rotation of the driving sheave by the motor. This configuration is the same for the endless winder 33 of the interlocking movement mechanism 30 described later.

  The back-and-forth movement mechanism 20 connects the trolley 13 and the counterweight 19 so as to be interlocked by an interlocking movement mechanism 30 as shown in a conceptual diagram in FIG.

  The interlocking movement mechanism 30 includes a rear pulley mechanism 31 as a first pulley mechanism, a front pulley mechanism 32 as a second pulley mechanism, and an endless winder 33 as a drive mechanism.

  The rear pulley mechanism 31 is provided between a rear moving pulley 31M as a first moving pulley provided on the counterweight 19 and a rear fixed pulley 31F as a first fixed pulley provided on the rear end side of the boom 12. In addition, a drive wire 31 </ b> W as a first drive line having a proximal end fixed to the rear end side of the boom 12 and a distal end coupled to the trolley 13 is wound around. That is, the drive wire 31 </ b> W whose base end is fixed to the rear end side of the boom 12 winds and reverses the rear moving pulley 31 </ b> M provided on the counterweight 19, and the rear fixed pulley provided on the rear end side of the boom 12. 31F is wound and reversed, and the tip is coupled to the trolley 13. In this configuration, the rear movable pulley 31M provided on the counterweight 19 becomes a moving pulley, and when the distal end (trolley 13) of the drive wire 31W is moved to the distal end side of the boom 12, the rear movable pulley 31M (counterweight 19) is It moves in the opposite direction (the rear end side of the boom 12) of 1/2 of the movement amount.

  The front pulley mechanism 32 includes a front moving pulley 32M as a second moving pulley provided on the counterweight 19, and a front fixed pulley 32F as a second fixed pulley provided on the tip side of the boom 12. In the meantime, the base end is fixed to the tip end side of the boom 12 and the connecting wire 32 </ b> W as a second driving rope having the tip end coupled to the trolley 13 is wound around. That is, the connecting wire 32 </ b> W whose base end is fixed to the distal end side of the boom 12 winds and reverses the front movable pulley 32 </ b> M provided on the counterweight 19 and at the same time the front fixed pulley provided on the distal end side of the boom 12. 32F is wound and reversed, and the tip is coupled to the trolley 13. As a result, the front moving pulley 32M provided on the counterweight 19 becomes a moving pulley, and when the front end (trolley 13) of the connecting wire 32W is moved to the rear end side of the boom 12, the front moving pulley 32M (counterweight 19 ) Moves in half the amount of movement, in the reverse direction (the tip side of the boom 12).

  The endless winder 33 is interposed between the rear fixed pulley 31F and the trolley 13 of the drive wire 31W of the rear pulley mechanism 31, and is fixedly installed on the boom 12. It can also be moved in the direction.

  In the interlocking movement mechanism 30 configured as described above, the rear pulley mechanism 31 and the front pulley mechanism 32 are configured symmetrically in the front-rear direction with the counterweight 19 interposed therebetween, and the respective moving cables (drive wire 31W, interlocking wire 32W). Since the tip of the trolley 13 is coupled to the trolley 13, the trolley 13 and the counterweight 19 are moved in the opposite directions with a 2: 1 movement ratio even if the drive wire 31 </ b> W is moved forward and backward by the endless winder 33. Can be driven in conjunction with

  That is, when the trolley 13 is moved to the rear end side of the boom 12, the endless winder 33 moves and drives the drive wire 31W of the rear pulley mechanism 31 rearward (right side in the figure). Thereby, the trolley 13 moves to the rear end side by the same amount as the movement amount of the drive wire 31 </ b> W, and the movement of the trolley 13 moves the front end of the interlocking wire 32 </ b> W of the front pulley mechanism 32 to the rear end side of the boom 12. Thus, the front moving pulley 32M, which is a moving pulley of the front pulley mechanism 32, moves to the half of the operation amount, to the tip side of the boom 12, so that the counterweight 19 is 1 of the moving amount of the trolley 13. / 2, moves to the tip side of the boom 12. At this time, the drive wire 31 </ b> W discharged from the endless winder 33 to the rear end side of the boom 12 is consumed for the movement of the counterweight 19 toward the front end side of the boom 12, so that no slack is generated.

  On the other hand, when the trolley 13 is moved to the front end side of the boom 12, the endless winder 33 moves and drives the drive wire 31W of the rear pulley mechanism 31 forward (left side in the figure). As a result, the rear pulley 31M (counterweight 19) of the rear pulley mechanism 31 is pulled by the drive wire 32W and is moved to the rear end side of the boom 12 by 1/2 of the movement amount of the drive wire 31W. By moving the forward moving pulley 32M of the mechanism 32 toward the rear end side of the boom 12, the tip of the interlocking wire 32W (trolley 13) is twice the movement amount of the forward moving pulley 32M (movement amount of the counterweight 19) (that is, endless). The amount of movement of the drive wire 31 </ b> W by the winder 33) moves to the tip side of the boom 12.

  In other words, according to the interlocking movement mechanism 30, the trolley 13 and the counterweight 19 can be interlocked at different movement ratios (2: 1) in the opposite directions by one mechanism, thereby reducing the weight of the counterweight 19 The total weight of the trolley 13 and the gondola cage supported by the trolley 13 is set to twice the weight of the trolley 13 and the position of the counterweight 19 from the fulcrum of the boom 12 (the supported portion by the turning support portion 11B: the receiving portion 12A). By contrast, the balance of the entire boom 12 can be maintained and the gondola cage 15 (trolley 13) can be moved back and forth. Further, since the position of the counterweight 19 corresponds to the position of the trolley 13 in a certain relationship, the position of the trolley 13 can be known by detecting the position, and thereby the position detection configuration of the trolley 13 is simplified. Can be

  This configuration example includes a rear moving pulley 31M and a rear fixed pulley 31F of the rear pulley mechanism 31, and a front moving pulley 32M and a front fixed pulley 32F of the front pulley mechanism 32. The counterweight 19 is moved by the moving pulley, and the trolley 13 and the counterweight 19 are interlocked in the opposite directions at a ratio of 2: 1. By laying and routing the (drive wire 31W, interlocking wire 32W), the movement ratio of the trolley 13 and the counterweight 19 can be set higher.

  Here, the back-and-forth movement mechanism 20 includes two sets (30L, 30R) of the interlocking movement mechanisms 30 configured as described above in parallel on the left and right sides as conceptually shown in FIG. , 30R are driven to move the trolley 13. The weight of the counterweight 19 of both the interlocking movement mechanisms 30L and 30R is set so as to balance with the trolley 13 and the gondola cage 15 in total. In the drawing, the constituent parts of the both interlocking movement mechanisms 30L and 30R are the same as those in the interlocking movement mechanism 30 described above, but L and R are added.

  The drive wires 31WL, 31WR and the interlock wires 32WL, 32WR of each interlocking movement mechanism 30L, 30R are front and rear of the drooping beam 13A provided on the trolley 13, as shown in FIG. It couple | bonds with the connection metal fitting 13B provided in the both sides, respectively. The connecting fitting 13 is disposed on the hanging beam 13A so as to be movable along a guide groove 13C formed in the longitudinal direction thereof, whereby the drive wires 31WL and 31WR and the interlocking wires 32WL and 32WR are connected to the hanging beam 13A. The coupling portion can move in the longitudinal direction of the drooping beam 13A.

  In the forward / backward movement mechanism 20 configured as described above, the trolley 13 can be moved back and forth by synchronizing the left and right interlocking movement mechanisms 30L and 30R and moving the same in the same direction, and the left and right interlocking mechanisms. The drooping beam 13A can be swung by the differential of the moving mechanisms 30L and 30R.

  That is, one interlocking movement mechanism (for example, 30L) is driven to move a predetermined amount toward the side where the trolley 13 is moved backward, and the other interlocking movement mechanism (the same 3R) is driven toward the side where the trolley 13 is advanced. Thus, the drooping beam 13A can be swung around the Z-axis as shown by an imaginary line in FIG. 7 without moving the trolley 13 back and forth. The hanging beam 13A can also be swung by driving only the other interlocking movement mechanism by a predetermined amount while one interlocking movement mechanism is fixed. In this case, the trolley 13 slightly moves. To do. When the drooping beam 13A swings, the coupling position of the driving cables (driving wires 31WL and 31WR and the interlocking wires 32WL and 32WR) of the interlocking movement mechanisms 30L and 30R to the drooping beam 13A is fixed. Although the routing route is slanted, each drive cable is coupled to the drooping beam 13A via a movable fitting 13B. Therefore, the fitting 13B moves as the drooping beam 13A swings. As shown in FIG. 7, a straight routing route can be maintained.

  The swinging angle of the hanging beam 13A is determined by the difference in the driving amount of the interlocking movement mechanisms 30L and 30R, and the respective driving amounts are reflected in the positions of the counterweights 19L and 19R. The amount of displacement corresponds to the swing angle of the hanging beam 13A. Therefore, as shown in FIG. 8, the counter weights 19L, 19R of the left and right interlocking movement mechanisms 30L, 30R are superposed vertically, and the relative displacement amounts before and after the upper and lower counter weights 19L, 19R are detected by the detecting means. By doing so, the swing angle of the hanging beam 13A can be known. In FIG. 8, limit switches 19S are arranged at predetermined intervals before and after the counterweight 19L positioned on the lower side, and the relative displacement amount of the upper counterweight 19R with respect to the lower counterweight 19L is greater than or equal to a predetermined value. Then, the limit switch 19S is operated, and the swing limit of the drooping beam 13A is detected. If these limit switches 19S are replaced with position detection sensors, the swing angle of the suspended beam 13A can be known from the detection information.

  According to the back-and-forth moving mechanism 20 as described above, the trolley 13 does not have to include an operation driving device such as a motor for swinging the hanging beam 13A. Therefore, a power source such as hydraulic pressure or electric power is provided to the operation driving device. There is no need to route the cables to be supplied. In addition, in order to understand the position of the trolley 13 and the swing angle of the hanging beam 13A by detecting the counterweight 19, a control system cable for transmitting position information from the trolley 13 to the control device of the gondola device 1 is also installed. It becomes unnecessary. That is, there is no need to connect the trolley 13 and the support carriage 11 with cables, and as a result, it is possible to easily cope with booms 12 having different lengths only by changing the lengths of the drive cables (drive wires 31W and interlocking wires 32W). It is very versatile.

It is a side view of the gondola apparatus which applied the example of 1 structure of the moving mechanism in the gondola apparatus which concerns on this invention. It is a top view of a gondola device. It is an enlarged view of a support cart. It is an expanded sectional view of a boom. It is a conceptual diagram of an interlocking movement mechanism. It is a conceptual diagram of the back-and-forth movement mechanism. It is a perspective view of the drooping beam provided in the trolley. It is a perspective view which shows the arrangement structure of the counterweight which can detect the rocking | fluctuation angle of a drooping beam. It is a figure which shows notionally the turning arm type gondola apparatus as a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Gondola apparatus 2 Building 11 Support trolley 11B Turning support part (support pillar member)
12 Boom (suspending arm member)
12A receiving part (supported part)
13 Trolley
13A Hanging beam (hanging beam member)
14 Suspension wire (suspending rope member)
15 Gondola cage (work floor)
19 (19L, 19R) Counterweight (Counterweight member)
20 Forward / backward moving mechanism 30 (30L, 30R) Interlocking moving mechanism 31 Rear pulley mechanism (first pulley mechanism)
31M Rear moving pulley (first moving pulley)
31F Rear fixed pulley (first fixed pulley)
31W drive wire (first drive cable)
32 Front pulley mechanism (second pulley mechanism)
32M Front moving pulley (second moving pulley)
32F Front fixed pulley (second fixed pulley)
32W connecting wire (second drive cable)
33 Endless winder (drive mechanism, drive device)

Claims (4)

A suspension carriage is movably provided along the suspension arm member on the suspension arm member that is pivotably supported by the support column member, and the work floor can be raised and lowered via a suspension rope member suspended from the suspension carriage. In the gondola device that is supported by hanging,
The suspension carriage, and a counterweight member provided movably along the suspension arm member on the rear end side from the supported portion of the suspension arm member by the support column member, are a first pulley mechanism, It is connected by an interlocking movement mechanism consisting of two pulley mechanisms and a drive mechanism,
In the first pulley mechanism, the first driving cable whose base end is fixed to the rear end side of the suspension arm member winds and reverses the first moving pulley member provided on the counterweight member. The first fixed pulley member provided on the rear end side of the suspension arm member is wound and reversed, and the tip is coupled to the suspension carriage.
In the second pulley mechanism, the second driving cable whose base end is fixed to the distal end side of the suspension arm member winds and reverses the second moving pulley member provided on the counterweight member, and The second fixed pulley member provided on the distal end side of the suspension arm member is wound and reversed, and the distal end is coupled to the suspension carriage,
The suspension mechanism moving mechanism in the gondola device, wherein the drive mechanism is constituted by a drive device that moves and drives the first drive cable or the second drive cable back and forth. The suspension carriage includes a suspended beam member that can swing around a vertical swing axis in the center in the longitudinal direction, and the suspended rope that supports the work floor from both ends of the suspended beam member, respectively.
The interlocking movement mechanism has two sets of juxtapositions in which the tip of the first drive cable and the second drive cable are connected to the front and rear of the hanging beam member on both the left and right sides of the swing shaft, respectively.
The suspension carriage can be moved along the suspension arm member by the synchronous driving of the both interlocking movement mechanisms, and the hanging beam member can be swung by the differential of the both interlocking movement mechanisms. The suspension cart moving mechanism in the gondola apparatus according to claim 1.   Detection means for detecting the relative position of the counterweight member of the left and right interlocking movement mechanism is provided, and the swing angle of the hanging beam member based on the relative position information of the counterweight member of the left and right interlocking movement mechanism by the detection means The suspension carriage moving mechanism in the gondola apparatus according to claim 1 or 2, wherein the suspension carriage moving mechanism is configured to detect the movement. The driving device of the driving mechanism is an endless winder that moves and operates a driving rope wound around a sheave that is rotationally driven by a driving means by moving a winding position by the rotation of the sheave. Item 4. The suspension carriage moving mechanism in the gondola device according to item 1, 2 or 3.

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