MXPA02000726A - Portable seating and locking apparatus therefor - Google Patents

Abstract

A portable seated riser system includes a plurality of riser stations including decks and supporting frames. The decks and frames provide for a number of levels at different heights arranged in an ascending riser configuration. Portable theater seats can be mounted on the decks and include locks and supports mountable to the frames for moving and securing the theater seats to the stage. The locks include a support and a linkage that automatically extends around behind the rear of the stage decks and automatically lock to the mounting plates of the theater seats when inserted into the locks.

Description

LAPTOP SEAT ARRANGEMENT AND CLAMPING DEVICE FOR M SMO FIELD OF THE INVENTION The present invention relates to a supported, portable lifting system. and in particular to a system having a steering device to ensure a portable seating arrangement, of the style used in the theaters, on a support platform.

BACKGROUND OF THE INVENTION Multi-use facilities such as arenas, stadiums, auditoriums and similar venues are used for multiple events that require different seating arrangements. Those facilities have typically been permanently mounting seats of the style used in theaters, with a fixed backrest and a pivoting seat portion, along with armrests. As ticket prices for events can be quite high, you want to provide high quality seats to provide the best service to attendees, rather than less comfortable seats such as folding chairs or benches.

REF .: 135570 portable It is generally preferred that the pallets are close to the wall, so that less space is required and that the seating arrangements at the back of each pallet platform provide a corridor in front of the row of seats. However, a clamping mechanism placed on the back of a platform faces space limitations. In addition, in a configuration of the elevator type, the rows must be placed close to one another. Therefore, typically there is: e little or no space between the back of a row and the front of the row • next. Although there may be a free space due to the difference in platform elevation, the separation can be quite limited, imposing additional design restrictions on any type of insurance. Other problems arise from the ease of transportation of those seats and configurations. of seats, platforms and seating arrangements should be easily transported and folded easily for storage, and allow for elevation adjustment. It is preferred that this system allows the use of pallets for other purposes and that the clamping mechanism can be completely removed from the pallets. The restraint and securing must provide sufficient stability of nanera so that the audience feels comfortable in the seats. The fastening systems They should also be easy to inspect and remove, however, when attached to the back of a platform where access may be limited, they should be substantially self-guiding and should be easily actuated and removed. The fastening system must also allow the automatic fastening to the pallets when they are fastened; They are in place, so that accidental loosening of the restraint system is not possible and seats are therefore safe. Since the fastening should normally be done on a lower side of a platform or frame associated with a portable commode, the placement of a lock is difficult under the space limitations of an elevator configuration. The placement of a retainer for attaching the underside of a platform is difficult and must be done from a distance removed. Furthermore, once that coupling has been achieved, the decoupling of the latch and the withdrawal of the clamping device for removal, in the spatial limitations of an elevator configuration, also presents design challenges. If the restraint device is caught or caught during removal, it may be difficult to gain access and correct the problem for retraction and removal. It can be seen that a new and improved portable seating arrangement system. That system should allow the seating support of the style used in the theaters, in a lift-type configuration.

This system should allow the complete removal of the insurance and support system, as well as the seating arrangements, from the portable platforms of the elevators. That system should be easily operable and provide a secure attachment and support for the seat. The insurance and support system should also be able to maneuver easily in limited spaces associated with a lift-type configuration. The present invention focuses on these and other problems associated with the provision of portable, quality seating arrangements.

BRIEF DESCRIPTION OF THE INVENTION The present invention focuses on seating arrangements, portable, and e. an elevator system, and in particular to an elevator system that provides support for seating arrangements of the type used in the theaters, removable. The portable seating arrangements are used in spaces where it is not possible to permanently leave the seating arrangements of the style used in the theaters, but where comfortable seats are needed for expensive tickets. several design obstacles. Portable pallets provide horizontal platforms, but do not provide a vertical mounting surface. In addition, if the pallets provided a vertical surface that extended upwards from the platforms, the utility of the portable platform would be compromised. Therefore, portable restraint systems are used to mount the seating arrangements to the pallets on the rear edge of the pallet platforms, in a removable configuration. The fastening systems include a base that forms a vertical slot to accept a mounting plate or bar of the theater seating arrangement. The theater seats can be connected and placed as a single seat or placed in units of multiple connected seats. The locks are preferably for each of the outermost leg portions of the bow that extends rearwardly from a seating arrangement unit. A first form of insurance includes a retainer mounted on an articulated connection extending behind and below the platform and frame of the platform. A retaining member is hooked below the bottom of the frame, to secure the safety to the portable platform. The articulated connection includes an actuator that extends forward from the base and that is connected to a central articulated connection that extends down to connect to the retainer. The actuator includes two curvatures with the rear section inclined downward, so that it rotates around the rear edge of the platform. The retainer is also pivotally mounted to a cover extending up to the rear part of the base where it is pivotally connected. The safety can slide backwards to extend slightly beyond the rear edge of the platform to fit within the low clearance from the rear, without requiring the worker to reach down to activate or secure the safety. The articulated connection is subjected to weight and is configured such that when it slides backward, where the pivot of the rear part of the base extends slightly further than the rear edge of the platform, the retaining member extends towards below and below the frame, copy the hook extending forward and beyond the front edge of the frame. By inserting a mounting plate of the theater seating arrangement into the groove in the base, the actuator member is pushed down and the rear part is turned upwards, thereby lifting the articulated connection to the retainer and pulling the retaining member. up to secure the frame. The insurance is automatic and no tools are required.

To remove the safety, the theater chair arrangement simply slides up to uncouple it from the base. The weight of the connection causes the retainer to move down and away from the frame to an unlatched position, but still extending below the frame. Sliding the latch forward causes the articulated connection to extend slightly backward so that the retainer hook portion is not trapped on the underside of the frame. By pushing the actuator downwards, the hook member is pulled upwards, so that it can slide over the rear edge of the platform without a finger trap. This provides for easy insertion and safe removal without hooking on the edges of the frame or platform and without any tools. A second form of seat insurance is attached to the frame of the pallet platform of the next higher platform, rather than to the frame below the seat latch. The second insurance includes a base with a second member that mounts vertically and slides to the base. A hook extends from the rear of the base and is configured to extend below and engage the bottom of the frame behind the platform latch of the highest, adjacent platform, or a rear rail. The hook rotates around the base and moves up and down, as the second member rises and falls. When the second member is raised, the hook falls down and with the lip of the hook extending below the frame of the adjacent platform. When the second member is lowered, the hook is turned up to a position of coupling with the frame. The second seat latch also includes a retainer mounted on the second member and which engages the base when they are engaged. The retainer prevents the second member from being lifted, and thus prevents the hook from disengaging from the frame. The second insurance includes an actuator tool to lift the second member. The lifting tool is coupled to a sherubrree swoobbrree phaarndte front plate of the second member, and uses a mechanical advantage to easily lift the second member, thereby lowering the hook, so that the segment can slide underneath or can be pulled from under the frame. The base includes vertically separated mounting holes. The hook can be mounted = n one of the holes to correspond to the elevation between the platforms of the platforms. This configuration is provided to adjust the separation of the hook to accommodate different elevations. These characteristics of novelty and other different advantages that characterize the invention, are pointed out with particularity in the appended claims to the same and forming part of the present. However, for a better understanding of the invention, its advantages, and the objects obtained by its use, reference should be made to the drawings forming an additional part thereof, and to the accompanying descriptive subject in which an illustrated and described preferred embodiment of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS Referring now to the drawings, where similar letters and reference numbers indicate the corresponding structure in all the different views: Figure 1 shows an extreme elevation view of a portable seating arrangement elevator system in accordance with the principles of the present invention; Figure 2 shows a front elevational view of the elevator system of the seating arrangement, shown in Figure 1; Figure 3 shows a rear elevational view of a fastening device for mounting an arrangement of theater seats, to portable platforms, for the system shown in Figure 1; Figure 4 shows a side elevational view of the fastening device shown in Figure 3 on the super Lor surface of the pallet, before fixing; Figure 5 shows a side elevational view of the fastening device shown in Figure 3, placed for fastening with the retaining member aligned with the frame of the pallet, Figure 6 shows a side elevational view of the fastening device shown in FIG. Figure 3, in the secured position, attached to the platform and supporting the arrangement of theater seats; Figure 7 shows a side elevational view of the fastening device shown in Figure 3, in a releasing position, for removing the clamping device; Figure 8 shows an elevation view of the mounting plate of the seating arrangement; Figure 9 shows a detailed view of a connection platform supported on adjacent pallets; Figure 10 shows a top plan view of a typical supported support arrangement in accordance with the principles of the present invention; Figure 11 shows a view in elevation side of a second embodiment of a supported elevator and seat securing device in accordance with the principles of the present invention; Figure 12 shows a side elevational view of a second embodiment of a seat fastening device, in accordance with the principles of the present invention, with the lifting tool removed and with the clamping device coupling the pallet; Figure 13 shows a side elevational view of the seat clamping device shown in Figure 12, with the lifting tool lowered and the clamping device engaging the platform; Figure 14 shows a side elevation view, with portions removed from the seat clamping device, shown in Figure 12, with the lifting tool driven and the clamping device placed for coupling and fixing the platform; Figure 15 shows a side elevation view with portions removed from the seat clamping device, shown in Figure 12, with the lifting tool driven for insertion of the clamping device, before coupling with the platform; Figure 16 shows a side elevation view of the seat clamping device, shown in Figure 12, adjusted for coupling to an elevator which has a first elevation between platform platforms; Figure 17 shows a side elevational view of the seat fastening device, shown in Figure 12, adjusted for coupling to an elevator having a second elevation between pallet platforms, greater than the first lift elevation;; Figure 18 shows a side elevational view of the seat fastening device, shown in Figure 12, adjusted for coupling to an elevator having a third elevation between pallet platforms, greater than the second elevation; Figure 19 shows a side elevation view of the seat fastening device, shown in Figure 12, adjusted for coupling to an elevator having a fourth lift between pallet platforms, greater than the third lift; Figure 20 shows a top plan view of a seat mounting bar, for theater seats shown in Figure 11; Figure 21 shows a perspective view of a lifting tool for the seat clamping device shown in Figure 12; and Figure 22 shows a perspective view with portions removed, of a safety rail assembly for the seat lifter arrangement shown in Figure 10.

DETAILED DESCRIPTION OF THE PREFERRED MODALITY Referring now to the drawings, and in particular to Figures and 11, there is shown a system of arrangement of seats with elevator, portable, designated in general with the number 20, System 20 includes portable platforms 22, 24, 26 and 28 of various heights, to form a lifting system which is supported by the arrangement of seats 30 of the type used in the theaters, the portable platforms 22, 24, 26 and 28 and the removable seat arrangement 30, form a portable system 20 that provides ascending rows of arrangement of 30 theater seats, to achieve improved views and comfort. For description purposes, only stage 22 will be described, however a similar structure is found on stage 24, 26 and 28 of other heights. The image 22 includes a top platform 50 supported on a structure 52 that can be folded for storage, as is well known in the art. The legs 54 are actuated by folding the structure and with the downward direction of the platforms 50 in the storage position. The different platforms 22, 24, 26 and 28 can be secured to the adjacent pallets, with clamping members 64 and 66, as shown in Figure 9 for the connecting platforms. The system 20 is flexible and can be modified to accommodate different widths and different row numbers. A typical configuration is shown in Figure 10. The pallets, or folding elevators, are alternated with the connection platforms and support them, between the pallets. The arrangement of seats is arranged in order to provide aisles for easy access to each seat. Referring now to Figure 2, the supported lifting system 20 also includes connection platforms 60 supported on a frame 62 to achieve extended width elevators. The ends of the connecting platforms 60 are joined to the individual pallets 22 in an end-to-end relationship, such that an extended pallet surface is formed. Referring to Figure 9, the pallets 60 are secured with members. 64 and 66 of intermediate clamping. With this arrangement, pallet surfaces can be formed without requiring legs 54 below each connection platform 60. This system saves money and is lighter to handle and requires less storage space.

Referring again to Figures 1 and 2, the arrangement of theater seats 30 typically has several seats joined together as a unit for mounting on the platforms. The arrangement of theater seats, permanent, is often mounted to a vertical surface behind the arrangement of theater seats, in a stadium or arena. The seating arrangement units include frames 32 that support a swivel seat 34 that can be cushioned, as well as a backrest 36. The armrests 38 extend on each side of the seats 34 and backrests 36 and can be shared between adjacent seats3. The seat 34 typically has spring pressure c, such that it tilts slightly upward and must be pushed down to a position of use by turning it around a pivot. The weight of the occupant of the seat typically maintains the seat 34 in the lowered position. The legs 42 extend downwardly and rearwardly from the frame 32 and include mounting rods or vertically extending mounting plates for the automatic actuation of a latch in a first mode, as will be explained hereinafter. As shown in Figure 8, the mounting plate 44 may include a locator or retainer. Such as a ball detent 46 which couples the cavities 48 formed in the suction support, to hold the plate assembly 44 in a lowered or raised position. Although the arrangement of theater seats 30 is described generally, other configurations that fall within the principles of the present invention are also possible. With reference to Figures 1 and 3-7, a first mode of the seat-fitting insurance 100 is configured to support the seating arrangement 30 and be mounted to a pallet 22. The safety 100 can be permanently attached to the legs 42 of the seating arrangement or to a mounting bar, with a separate actuator or sliding actuator. The second 100 includes a base 102 and a seat support 104 that forms a slot 106 that receives the mounting plate 44 that operates the lock 100 and automatically secures it to the deck 22. In a preferred embodiment the seat support 104 it has cavities or holes 48 formed through the seat support 104 on the sides of the slot 106, configured to receive the retainer 46 and hold the mounting plate 44 at a specific height. An articulated connection, designated in general with the number 108 provides the drive and fastening to the frame 52 on the rear edge of the pallet 22. The articulated connection 108 for the lock 100 includes an actuating member 110 having a first portion 112 to which it can be accessed from the front of the lock 100 and extending at an angle towards up to grab and operate it easily. The first portion 112 is connected to a middle portion 114 that extends rearwardly to a third portion 116. The third portion 116 is pivotally connected to a pivot 150 in a half articulated connection 120. The central articulated connection 120 includes a slight curvature and extends downwardly behind the platform 50 and frame 52 and is hingedly connected to a second pivot 152 in a retainer 140. The retainer 140 has a lip portion 142 that forms a receiving section with a profile configured to accept the lower portion of the frame 52 of the pallet. The retainer 140 is also connected to a cover member 130 on a third pivot 154. The cover member 130 includes a coupling surface 132 which is bent and which is configured to automatically engage and release the safety when the latch is engaged and actuated. for his retirement. At an upper end, a right-angled portion 134 extends forward and includes a fourth pivot 156 that is hingedly connected to the poster part of the base 102. To provide the system 20 for seating arrangement with elevator , the elevated tlarimas 22, 24, 26 and 28, are unfolded and placed in an ascending arrangement, as shown in Figure 1. Depending on the requirements of the seating arrangement, the connection platforms 60 they can be added, as shown in Figure 2. Although only two pallets 22 and the connecting platform 60 are shown, additional connection platforms 60 and pallets 22 can be added to form an enlarged, extended, supported elevator system, such as the one shown in Figure 10. The adjacent pallets 22, 24, 26 and 28 can be connected to each other to form a lifting unit. Once the pallets have been lifted, the locks 100 are placed on the different pallets and separated in order to receive the mounting plates 44 of the seating arrangement 30. If the locks 100 are permanently attached as a part of the legs 42 or on the mounting bar 160, the units 30 of the seating arrangement, are placed to be attached to the locks 100 in the position shown in Figure 4. The seating arrangement 30 can be arranged with units having multiple seats where each seating arrangement unit has two 100 seats insurance. To place the locks 100, these are placed with the base on top of the platform 50 as shown in the Figure. When this position is in place, the latch 100 can slide backward until the hinged connection 108 extends downwardly with the retainer member 140 aligning itself in the position shown in Figure 5. Referring again to the Figure 4, the latch 100 is arranged with the articulated connection extending rearwardly and the actuator 110 pressed in such a way that it is in a raised position in its forward portion. The intermediate articulated connection 120 forces the retainer 140 to keep the lip 142 extending downward. When the latch 100 slides back to the position shown in FIG. 5, the articulated joint 120 and the cover 130 extend downward and slightly backward. Due to the curvature in the medium articulated connection 120 and the coupling surface 132, only a clearance of slightly more than 5.1 centimeters (2 inches) is required between the rear part of the platform 50 and a vertical wall u other pallets 24 for the articulated connection 108 to operate. The articulated connection 108 is pressed and configured such that when pushed far enough back, the retainer 140 extends with the lip projecting forward and beyond the front edge of the door. frame 52. Culiando the first pivot 150 is placed on the back of platform 50 of the platform, the actuator 110 rests against the rear edge of the platform 50 on the third section 116. This causes the action 110 to extend upwards with the middle section 114 separated from the base 102 of the safety.

When it is placed as shown in the Figure 5, the latch 100 can receive a mounting plate 44 from the seat arrangement: s, and automatically secure the seating arrangement to the frame 52. As shown in FIG.

Figure 6, when the mounting plate 44 is lowered into the slot 106, the plate 44 engages the upper surface of the actuator 110 and the lower edge of the plate 44 rests on the lower end of the slot 106. action rotates the articulated connection 111100 aacccciioonnaaddoorraa ,, aallrreeddeeddoorr of the rear edge of the platform 50, thereby lifting the first pivot 150. When lifting the first pivot 150 pull the articulated connection 120 up, pulling the second pivot 150 upwards and lifting the retainer 140 so that the lip 142 extends in front of and around the frame member 52, such that the latch engages the pallet 22. As shown in Figure 6, in this position , the articulated connection 108 is secured in the clamped position, so that 100 can not be rerouted .. The trolley rail 3300 is positioned in such a way that the occupant of the seat and the center of gravity of the seating arrangement be in front of base 102 of the insurance.

However, since the lock 100 is secured on the back, any forward torque is avoided by the hinged connection 108 with the retainer 140. secured to the frame 52. E. '. coupling of the seat arrangement 30 to the safety 100 is easily achieved when the mounting plate 44 simply slides down and into the slot 106 and an upper surface of the actuator 110 is engaged for automatic engagement without tools being required. When the seat arrangement 30 and the locks 100 are to be removed, the seat arrangement units 30 can be easily removed from the safety by pulling the seat arrangement 30 directly upward, so that the mounting plate 44 slides out of the seat. the slot 106. When the tongue 46 disengages from the top of the actuator 110, the latch 100 and the hinged connection 108 are pressed to insert their position into the position shown in Fig. 5. In this position, the latch 140 it disengages from the front part of the frame member 52. Simply by pulling all the latch 100 forward, the hinged connection 108 will rotate on the upper rear corner of the platform 50 with the mating surface 132 of the cover moving the lower part of the cover 130 and the retainer 140 upwards and towards behind. However, when the lip 142 extends downward, continuing to forward jacking the latch 140 will be trapped on the back of the platform 50. To avoid entrapment, when the retainer 140 is partially lifted behind the frame 52, the actuator 110 is pulled forward, so that the medium articulated connection 120 pulls the front portion of the retainer 140 forward and upward. This causes the lip 142 to extend up and behind the mating surface 132 as shown in FIG. 7, such that further movement of the latch 100, forwardly, causes the articulated connection 108 to move. on the mating surface 132 while the retainer 140 is pulled up to engage the cover 130, clearing the rear edge of the platform 50. The latch 10 © can simply be pulled forward or up, 1 secure 100 can be placed to receive the arrangement of seats 30 in a few seconds and to be pulled also from the back of stage 22 in one 3 seconds, without using any tool. The latch 100 is identically joined to the elevating platform platforms at multiple different elevations between the platforms 50. In addition, the placement of the raised pallets usually results in a wall or other pallet being bolted adjacent to the rear of the platform. and that extends over platform 50. This provides easy access, so that workers can not extend their hands below and behind the platforms to get access to any type of restraint mechanism. However, that access is not required with the present invention. The present invention also provides the feature that the operator grasps the articulated connection by the front of an actuator 1.10 that is fully exposed and easily accessible. In addition, the coupling of the insurance 1C 0 is automatic with the insertion of the arrangement 30 of seats in the safety 100. The safety 100 is also provided to operate in very small spaces, requiring freespace from behind. Referring now to Figure 11, the supported lifting system 20 is shown with the seating arrangement 30 mounted on a second mode of an insurance 200. The insurances 200 are similar to the insurance 100 and support the seating arrangement 30 securing them on the platforms 50 in front of the seats 30. However, the latches 200 are fastened to the frame 52 of the platform 50 immediately behind the arrangement 30 of seats instead of the frame 52 of the platform 50 below the seating arrangement 30 if compared in Figures 1 and 11. When the safety 200 is secured to the rear, a safety rail 170 includes a frame member for hold the last row of the seating arrangement 30, on the highest platform 28, as shown in Figure 22. Those elevators they would typically include a safety rail 170 for reasons of safety and protection. Therefore no modifications and additional costs are incurred to accommodate the insurance 200. Referring now to Figure 12, the safety 200 includes a base 202 that rests on the platform 50 of the back platform, on which it sits and is pushed on the platform 50 of the next platform and is coupled to the structure 52 of the platform 50, higher, adjacent. The base 202 includes a lower portion that extends forward, that slopes slightly upward and rearward and a portion of the elevator at the rear. A low friction pad 250 can be mounted on the underside of the base 202 to provide easier gliding on the surface of pallets 50, which often has a non-slip surface. A hook member 204 extends outwardly from the rear of the base 202 and is rotatably mounted thereto to the same runner of the bbiissaagsrraa or pivot point 212. The vertical position of the hook 204 can be adjusted to accommodate different elevations enitre platforms 50 of the platforms, as will be explained later in the present.

A second articulated, movable connection 206 is slidably mounted to the base 202 and moved between a position Descended, shown in Figure 12, and a raised position, as shown in Figures 14 and 15. A tool 300 is used to lift the second member 206 and actuate the hook 204 by rotating the upper inclined surface, towards outside the base 202. As shown in Figures 12, 13 and 20, the second member 206 is held in place by a stop 208. The stop 208 rotates about a pivot 242 not on the second member. 206 and includes a L-shaped portion 24 0 extending down to the retainer 246. The retainer 246 extends below and engages a bolt or other projection. 244 acting as a stop, The stop 208 is subjected to a weight, such that the gravity acts to place the stop 208 in a coupled position until it is actuated by the lifting tool 300, as will be explained later in the presentment. Referring to Figures 14 and 15, the second member 206 slidably mounted, includes a slit 210 with a lip 38 for receiving a coupling rod 312 on the lifting tool 300. The second member 206 includes slots 230 which are provided for the vertical movement relative to the base 202, sliding between a lowered position and an elevated position, and sliding on bolts or screws 232. At the rear of the second articulated connection 206, a Lower engaging surface 236 interacts with hook 204 to provide drive and movement between a coupled and uncoupled position. The lower engaging surface 236 may be on a spacer block 248 for accommodating different hook mounting positions, vertical, for various elevator heights, as will be explained later herein. The hook 204 includes a top engaging surface 216 that interacts with the surface 236 of the second member 206. The hook 204 includes a lip 218 that forms a channel 220 for receiving the frame member 52. Referring now to Figure 21, the lifting tool 300 includes a handle 302 that extends substantially horizontally at the top of the vertical portions 306 of the frame. A cross member 308 provides additional support. The lifting tool 300 i: includes a pivot portion 304 that can also act as an axle and can be mounted to the wheels 310. A coupling rod 312 extends substantially horizontally and is configured to be inserted into the slot 210 of the second embodiment of the safety devices 200. The coupling rod 312 extends to a width that can be coupled to two of the separate safety devices 200, for seating units of two theater seats 30, at the same time, for the insertion and withdrawal of insurance and so on. nts by a single worker. Referring now to Figure 20, the seats 30 can be mounted as a single seat, double units, or more, and include a mounting bar 160 that is typically mounted to the base 202 of the second insurance mode 200. The bar 160 may also be used to accept the mounting plate 44 of the first embodiment of the seat-securing insurance 100. The mounting bar 160 receives the legs 42 of the theater seating arrangement 30, it will be appreciated that each manufacturer of theater seating arrangements can provide a different method of assembly. The mounting bar 160 is provided to suit each of different types of mounting. For example, the bar may accept U-bolts, the legs may be directly joined with bolts to one side of the bar 160, or inserted above the top of the bar 160. The mounting bar 160 may be configured to extend in each end and engaging in the next adjacent mounting bar, such that the seating arrangement 30 can be maintained at a predetermined spacing as shown in Figure 10. Referring now to Figures 16-19, the present invention It is provided to adapt to different elevations between 50 platforms. Depending on the configuration of the sand for which the of seating arrangement, different elevations may be needed that provide different visual lines. Typical elevations include elevations of 12.7 centimeters (5 inches), 15.24 centimeters (6 inches), 17.8 centimeters (7 inches) and 20.3 centimeters inches). These are represented in Figures 16-19 respectively. The present invention is provided to adapt to different heights with each of the modalities 100 or 200. For the first mode of insurance 100, as you change > At the elevation, the articulated connection 108 does not need to be reconfigured since the frame member 52 will remain at the same distance below the pallet 50 of the pallet and the base 102. The spacing between the frame 52 and the next platform 50 lower, does not affect the insurance 100 of the configuration. For the second embodiment 200, shown in Figures 16-19, as the elevation changes between the platform receiving the seating arrangement 30 and the higher, adjacent platform, in the subsequent delivery of the seating arrangements 30, the position of the hook 204 must be able to accommodate changes in height. To facilitate these differences, the mounting holes 204 are vertically spaced at the rear of the base 202. The holes 214 are vertically staggered in increments corresponding to standard elevations. Moving the pivot 212, the position of the hook 204 is vertically moved. Therefore, as shown in Figure 16, for the lift A, the hook 204 is mounted in the lower mounting hole 214. In Figure 17, the hole moves up to an elevation B of 15.24 centimeters (6 inches) in the orifice 214. For a C elevation of 17.8 centimeters (7 inches), shown in Figure 18, or an elevation D of 20.3 centimeters (8 inches) , shown in Figure 19, the pivot 212 must move to the mounting hole 214 above. Further, for an inch lift, a spacer member 222 is attached to the hook 204 with a bolt or other fastener 223. The spacer member 222 forms a lip and a channel for receiving the frame member 52, in a configuration similar to that of the frame. of the hook 204. In addition to the position of the hook 204, the coupling surface 236 must be maintained to engage the upper part of the hook on the surface 216. As shown in Figures 14 and 15, when the safety 200 is adjusted for a 5 or 6 inch lift, which corresponds to one of the two lower holes 214, the coupling surface should be placed below a spacer block. 248. Coupling surface 236 must be turned downward by insertion of spacer block 248 to engage surface 216 of hook 204 at these low elevations, As shown in Figures 14 and 15, a one-inch block or other height corresponding to the standard spacing between the holes 214 is inserted. When the stage 20 is configured for the lowest elevation corresponding to the configuration shown in FIG. Figure 16, a higher spacer 248 is inserted corresponding to the distance between the upper and lower mounting holes 214, often at 5.1 centimeters (two inches). When the pallet 20 is adjusted for a higher elevation, as shown in Figure 18, no separating member is required when the engaging surface 236 is in the lower part of the rear portion of the desilizing member 206. For the higher elevations, since the n ° 204 is modified with the separator 222, the relative position between the hook 204 and the sliding member 206 is the same as for an elevation of 17. 8 centimeters (7 inches), as shown in Figures 18 and 19. Therefore no modification is needed for sliding member 206 to accommodate a change in elevation between a 17.8 centimeter (7 inch) elevation or of 20.3 centimeters (8 inches). Although one inch intervals have been described, it is readily apparent that other increments can be used having different spacers 248 and / or different distances between mounting holes 214.

Referring now to Figure 22, there is shown a preferred mounting for a seat arrangement safety rail 170, which extends over the sides and back of the seating arrangement system 20. A set screw 172 is inserted into an internally threaded sleeve 174, on a mounting plate 176 attached to the outer pipe 178 mounted to a pallet, and into a hole 182 in a plate 1 4 of the mounting leg 180 of the rail 170 to prevent removal of the rail 170. The screw or locking bolt 172 acts as a latch between the mounting leg 180 and the outer pipe, so that the rails 170 can not be pulled up without first removing the set screw or another bolt 172. To insert and engage the latch 200, the tool 300 is placed on the base 202 with the pivot portion 304 on the upper surface of the base 202 and the coupling rod 312 engaging in the slit 210, as shown in FIG. shown in Figure 15. The insertion of the coupling rod 3 2 into the slot 210 pushes the stop 208 out of engagement with the projection 244. This movement allows the second member 206 to be lifted. The tool 300 is then rotated such that the coupling rod 312 is lifted by the second member 206. The raising of the second member 206 rotates the hook 204 downwardly. When the hook i * ... 204 is lowered, the sling 200 is pushed back while the tool 300 is rotated and the second member 206 is raised. The hook 204 can be slid under the frame 52, such that the lip 218 is behind the frame 52, as shown in Figure 14. When the hook 204 is placed, the coupling rod 312 is lowered. thereby lowering the second member and rotating the hook 204 upwards, and in engagement with the frame 52. When the tool 300 is decoupled from the second member 206, the lower part of the frame 52 extends into the channel 220, with the hook 218 extending behind the frame, to prevent the safety 200 from being pulled outward, as shown in FIG.

Figure 13. When removed: to tool 300, as shown in Figure 12, insurance 200 stabilizes the arrangement seats, so that you can not turn forward and tip over. To remove the latch 200, the coupling rod 312 is inserted into the slot 210 and rotates upwardly to lift the second member 206. This movement rotates the hook 204 downward, so that the lip 218 is in one place lower than the bottom of the frame 52, as shown in Figure 14. The latch 200 is then pulled forward, with the second member 206 raised and the hook 204 lowered, as shown in FIG. shown in Figure 15. When the latch 200 is moved such that the hook 204 is forward of the frame 52, the coupling rod 312 is lowered. The safety 200 is decoupled and the arrangement 30 of seats and the safety 200 can be removed from the pallet system 20. However, it should be understood that although numerous features and advantages of the present invention have been presented, in the foregoing description, together with details of the structure and operation of the invention, the description is only illustrative and changes in detail can be made, especially to the shape, size and arrangement of the parties, within the principles of the invention, to the extent indicated by the broad general meaning of the terms in which the appended claims are expressed.

It is noted that in relation to this date, the best method known to the applicant to carry out the aforementioned invention, is that which is clear from the present description of the invention.

Claims (7)

1. CLAIMS Having described the invention as above, the content of the following claims is claimed as property: 1. A fastening system 200 for fastening a chair leg to a platform system, having a first platform with a supporting surface; and a second platform above and to the rear of the first platform, in doide a front portion of the second platform overlaps with a rear portion of the first platform, which includes a frame extending down and above the first. platform, the system is characterized by: a base configured to rest on the support surface and to support a seating leg; a second member slidably mounted to the base and movable; between a lowered position and a raised position, and having a coupling portion in a rear part of the second member; a retainer member pivotally mounted to a rear portion of the base, and including a complementary portion that engages the coupling portion of the second member, wherein the descent of the second member rotates the retainer member upwardly and the * > . * lifting the second member allows the retaining member to rotate down; an actuating tool to lift the second member relative to the base. A fastening system according to claim 1, characterized in that the retaining member comprises a hook portion defining a channel. 3. A fastening system according to claim 2, characterized in that the channel is configured to engage a lower end of the frame. A fastening system according to claim 1, characterized in that the base defines a plurality of mounting positions, and in that the retainer can be mounted to a plurality of different heights in the base. 5. A system. { according to claim 4, characterized in that the second member includes a removable separator to maintain the separation of the second member and the retainer member. 6. A fastening system according to claim 1, raised character because the second member defines a slot for accepting the driving tool 7. A method for fastening an array of seats, in a lifting structure, the lifting structure has a first platform with a supporting surface; and a second pía: aforma at the top and at the rear of the first platform, wherein a front portion of the second platform overlaps with a rear portion of the first platform, which includes a frame that extends downwards and upwards of the first platform, the method is characterized in that it comprises the steps of: providing a safe adapted to be attached to the arrangement of seats, the safety has a base and a hook mounted rotatably on a rear part of the safety, an articulated connection mounted by sliding to the base, having a coupling portion at the rear of the articulated connection, wherein the articulated connection can move between a lowered position and a raised position, wherein the coupling portion is coupled to a complementary portion of the hook in a lowered position and lift the hook; providing a lifting tool having a lifting rod adapted for insertion under a slot of the articulated connection; place the safety on the first platform in front of the frame; Insert the lifting tool under the groove in the articulated connection; to rotate the lifting tool on the first platform, to lift the lifting rod and fit the groove and lift the articulated connection, thereby lowering the hook; slide the latch backwards until the hook extends below the frame; and to turn the lifting tool to lower the lifting rod, and the articulated connection, thereby lowering the articulated connection and lifting the hook so that it comes into engagement with the frame 41 / A zoot o o o 7 SUMMARY OF THE INVENTION A supported, portable lift system includes a plurality of lift stations including platforms and support frames. The platforms and frames provide a number of levels at different heights, arranged in an ascending lift configuration. Seats of the type used in theaters, portable, can be mounted on the platforms and include locks and supports that can be mounted to the frames to move and secure theater-type seats on the stage. The insurances include a support and an articulated connection that automatically extends around and behind the back of platform platforms and that is automatically attached to the seat mounting plates of the type used e? the theaters, when they are inserted in the insurance.