JP2018091048A - Mobile stand and transport device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mobile stand which can freely move a stand and does not concentrate the load of the stand set at a predetermined position.SOLUTION: It comprises a stand provided with a space for accommodating a person on a base 11 b in contact with the installation surface, and a conveyance device 101 that connects to the stand and conveys the stand, in which an engaging portion 31 is provided on the base 11b of the stand, the conveying device 101 includes a lever bar 110 and a wheel 130 attached to an intermediate portion of the lever bar 110 in the longitudinal direction to form a fulcrum portion, The lever bar 110 has a connecting portion 112 that is detachably engaged with the engaging portion of the stand in the action portion at the lower end, and a gripping portion is formed at the upper end power point portion.SELECTED DRAWING: Figure 6A

Description

  The present invention relates to a mobile bleacher seat that is transported to a required position such as an outdoor stadium, a gymnasium, or a multipurpose hall, and a transport device that transports heavy objects such as a bleacher seat.

  Known movable seats are those in which transport means such as wheels and crawler belts are attached to the seats (see Patent Documents 1 to 4).

  The movable bleacher described in Patent Document 1 has a structure in which a bleacher is provided on a carriage, wheels are driven by a motor, and the vehicle is moved in the front-rear direction along a guide laid on the ground. The mobile bleacher described in Patent Document 2 is a bleacher seat in which staircases are superposed and stored, and a pair of rotating wheels and a pair of rotating wheels are wound around the supporting leg structure of the auditorium. It is a structure that puts in and out of the seats by attaching an endless track mechanism with a track. The mobile auditorium described in Patent Document 3 also has a structure in which the staircase auditorium is superposed and stored, and a roller is attached to the support frame for taking in and out of the auditorium. The mobile auditorium described in Patent Document 4 has a structure in which a pair of sprockets are attached to the lower frame of the auditorium and an endless chain is wound around to move the auditorium back and forth.

Japanese Patent Laid-Open No. 11-125019 JP 2001-262848 A JP 2000-282698 A JP 62-32147 A

  In any of the mobile bleachers described in Patent Documents 1 to 4, the bleacher and the moving means are integrated, and the bleachers are supported by the moving means even after they are installed at predetermined positions. For this reason, the load on the bleacher seat is concentrated on the moving means, for example, on the wheel and the rotating part of the crawler belt, and the load on the bleacher seat is concentrated on these parts for a long time. Etc. were easily damaged. Further, since the moving means always supports the bleachers, the moving means is easily damaged and high strength is required. Further, the viewing area in which the wheel is engaged with the guide laid on the installation surface has a movement range limited to the installation range of the guide.

  In view of the above-described technical background, the present invention provides a mobile bleacher with a structure that can freely move the bleacher and does not concentrate the load on the bleacher installed at a predetermined position. The purpose is to provide a transport device used for the above.

  That is, this invention has the structure as described in following [1]-[7].

[1] It is constituted by a bleacher seat provided with a space for accommodating a person on a base that is in contact with the installation surface, and a transport device connected to the bleacher seat and transporting the bleacher seat,
An engagement portion is provided on the base of the bleacher seat,
The transport device includes a lever rod and a wheel that is attached to an intermediate portion in the longitudinal direction of the lever rod to form a fulcrum portion, and the lever rod is provided at an action portion of a lower end as an engaging portion of the bleacher seat. A movable bleacher seat having a connecting portion that is detachably engaged, and a grip portion is formed at a power point portion at an upper end.

  [2] The first aspect according to [1], wherein the engaging portion of the bleacher seat is a protrusion protruding from a base, and the connecting portion of the transport device engaged with the protrusion is a cylindrical collar fitted on the protrusion. Mobile bleachers.

  [3] The mobile auditorium according to the preceding item 2, wherein a hole communicating with the protrusion and the collar is formed, and a connecting pin is inserted into the hole to maintain the connection posture of the auditorium and the transport device.

  [4] The mobile bleacher as recited in the aforementioned Item 3, wherein a plate supporting the tilting posture of the lever rod is attached to a fulcrum portion of the lever rod, and wheels are attached to the plate.

  [5] The mobile bleacher as recited in the aforementioned Item 4, wherein an end of the plate is inclined downward to form a pedal.

  [6] The base according to any one of the preceding items 1 to 5, wherein the base of the bleacher seat is a square, engagement portions are provided at four corners of the base, and a transport device is coupled to each engagement portion. Mobile bleachers.

[7] A transport device that transports in connection with a heavy object provided with an engagement portion,
A wheel having an action part detachably engaged with an engaging part of the heavy object at a lower end part, and a lever rod having the upper end part as a grip part attached to a fulcrum part of an intermediate part in the length direction It is supported by the conveying apparatus characterized by the above-mentioned.

  According to the mobile auditorium described in [1] above, the auditorium is connected to the engaging portion of the auditorium by the connecting portion serving as the action portion of the lever rod of the transport device, and using the lever principle with a small force Can be lifted. The lifted auditorium is moved to a desired installation location by running wheels, and only the auditorium is installed at the location with the conveyor removed. Since the load of the installed seat is distributed to the base in contact with the installation surface, damage to the installation surface can be minimized.

  The transport device is used only when the auditorium is transported. Since the transport device has a short usage time, there is little damage or deterioration. Among them, the wheel is a portion where the load on the bleacher seat is concentrated and easily damaged. However, since the wheel is only subjected to the load in a short time during transportation, the wheel is hardly damaged or deteriorated. In addition, since the removed transfer device can be used for transferring another bleacher, a large-scale bleachers can be constructed with a small number of transfer devices by sequentially transferring and installing a plurality of bleachers.

  In the mobile bleachers described in [2] above, the connecting means for the bleachers and the conveying device is a projection and a cylindrical collar that is externally fitted to the projection, so that the connecting work is easy.

  In the movable bleacher seat described in [3] above, by inserting the locking pin into the hole communicating with the protrusion and the collar, the connected posture of the bleacher seat and the transport device can be stably held.

  According to the mobile bleacher as described in [4] above, the lever can be supported in an inclined posture at an arbitrary angle by the plate, and the operability of the transport device can be enhanced.

  According to the mobile bleacher as described in [5] above, the grip portion can be operated by putting a foot on the pedal, and the operability of the transport device can be improved.

In the mobile bleachers described in [6] above, the lifting posture of the bleachers can be stabilized by connecting the transporting devices to the four corners of the base of the quadrangular bleachers, so that they can be transported safely. [7] According to the transport apparatus described in (1), the action part of the lever bar is connected to a heavy object, and using this principle, the heavy object can be lifted with a small force, and the wheel can be transported.

It is a perspective view of the mobile bleachers of the present invention. It is a disassembled perspective view of a bleacher seat. It is a principal part top view which shows the position of protrusion of a bleacher seat. It is an enlarged view which shows the periphery of the protrusion of a side frame. It is an enlarged view which shows the periphery of the protrusion of a side frame. It is a perspective view of a conveying apparatus. It is a principal part enlarged view of FIG. It is the 6B-6B sectional view taken on the line in FIG. 6A. It is typical explanatory drawing which shows the connection procedure of a bleacher and a conveying apparatus. It is a layout view of the bleachers and the transfer device. It is a perspective view which shows the other connection part in a conveying apparatus. It is a perspective view which shows the further another connection part in a conveying apparatus. It is a side view which shows the other aspect of a bleacher seat.

  1 to 8 show an embodiment of the mobile bleachers of the present invention. The mobile viewing seat 1 in the illustrated example is configured by a viewing seat 10 in which four five-seat benches are provided in a stepped shape, and a total of four transfer devices 100 and 101 of two types each. The bleacher seat 10 is transported and installed at a required position outdoors such as an exercise ground or indoor such as a hall.

In the following description, the front / rear / left / right directions in the viewing seat 10 are the front / rear / left / right directions of the person seated in the viewing seat 10, and the front / rear / left / right directions in the transport apparatuses 100, 101 are the directions of the operator of the transport apparatus 100, 101. The front and rear, left and right directions.
[Attendance seat]
As shown in FIGS. 1 and 2, the bleacher seat 10 has a seat plate 40, a footboard 50, a side rail 60, and a back rail 70 attached to a framework that is formed by various columns and beam materials such as beams. .

  The structure of the framework of the bleacher seat 10 is as follows.

  On the left side frame 11a and the right side frame 11b in contact with the installation surface, support columns 12a, 12b, 12c, and 12d, which increase in height from the front to the rear, are erected, and left and right support columns 12a having the same height. , 12b, 12c, and 12d are connected by front beams 13a, 13b, 13c, and 13d disposed at the same height as the columns 12a, 12b, 12c, and 12d. The front and rear columns 12a and 12b are connected by side beams 14a arranged at the same height as the lower column 12a, and the left and right columns 12b are rear beams arranged at the same height as the side beams 14a. 15a is connected. That is, the upper surfaces of the column 12a, the front beam 13a, the side beam 14a, and the rear beam 15a have the same height. Further, the front beam 13a and the rear beam 15a are connected by two connecting members 16 disposed at positions lower than the upper surfaces thereof. Similarly, the column 12b and the column 12c are connected by a front beam 13b, a side beam 14b, and a rear beam 15b, and the front beam 13b and the rear beam 15b are connected by a connecting member 16. Similarly, the column 12c and the column 12d are connected by a front beam 13c, a side beam 14c, and a rear beam 15c, and the front beam 13c and the rear beam 15c are connected by a connecting member 16.

  Four circular holes 17 for attaching seat plates are formed on the upper surfaces of the front beams 13a, 13b, 13c and 13d. Two circular holes 18 for attaching side rails are formed on the upper surfaces of the side beams 14a, 14b, 14c. Further, the fence receiving member 19 is provided in a manner that protrudes rearward from the left and right support columns 12d at the rearmost portion, and the two shelf receiving members 20 are provided in a manner that protrudes rearward at the central portion of the front beam 13d at the rearmost portion. ing. The shelf receiving portions 19 and 20 are provided with circular holes opened on the upper surface.

  As shown in FIGS. 2 to 4B, cylindrical projections 30 and 31 projecting in the horizontal direction toward the right side frame 11b are formed on the front and rear portions of the inner surface of the left side frame 11a. . Similarly, cylindrical projections 31 and 30 projecting in the horizontal direction on the left side frame 11a are formed on the front and rear portions of the inner surface of the right side frame 11b. The protrusions 30 and 31 are provided with holes 32 penetrating in the vertical direction.

  It is the left and right side frames 11a and 11b that the attendant seat 10 contacts with the installation surface, and these are connected by various beam materials to form a square base in plan view. And the protrusions 30 and 31 which connect the conveying apparatuses 100 and 101 are provided at the four corners of the quadrangular base. The protrusions 30 and 31 correspond to the engaging portions provided on the base of the seat in the present invention.

  The frame 40 and the footboard 50 are attached to the above-described frame, and the side fence 60 and the back fence 70 are attached if necessary. In FIG. 2, only one of the four seat plates 40 is shown, and only one of the three footboards 50 is shown.

  The seat plate 40 is made of a channel material having flanges with lip portions at both ends in the front-rear direction, and has a cylindrical bar shape at a position corresponding to the four circular holes 17 of the front beams 13a, 13b, 13c, and 13d on the lower surface. The insertion part 41 is projected. The seat plate 40 is detachably attached by inserting the insertion portion 41 into the circular hole 17 of each front beam 13a, 13b, 13c, 13d. A four-stage bench is formed by attaching four seat plates 40 to four front beams having different heights to 13a, 13b, 13c, and 13d.

  The seat plate 40 is formed to have the same size as the front beams 13a, 13b, 13c, and 13d in the left-right direction and forms one long bench at each stage. It is also possible to attach a short seat plate to each of the two left circular holes 17 and provide a passage in the center.

  The tread plate 50 corresponds to the plan dimension of the space surrounded by the front beams 13a, 13b, 13c, the side beams 14a, 14b, 14c and the rear beams 15a, 15b, 15c, and the tread plate 50 dropped into the space. The floor is formed by receiving and supporting the connecting material 16. The thickness of the tread plate 50 is equal to the distance from the upper surface of the front beams 13a, 13b, 13c, the side beams 14a, 14b, 14c and the rear beams 15a, 15b, 15c to the upper surface of the connecting member 16, and The upper surfaces of the beams 13a, 13b, 13c, 14a, 14b, 14c, 15a, 15b, and 15c are flush with each other.

  The side fence 60 has a rod-like insertion portion 61 corresponding to the two circular holes 18 of the side beams 14a, 14b, and 14c at the lower end. The side fence 60 is attached by inserting the insertion part 61 of the side fence 60 into the circular hole 18 of the side beams 14a, 14b, 14c. 1 and 2 show a state in which the side fence 60 is attached only to the right side beams 14a, 14b, and 14c.

  A plurality of the bleachers 10 can be installed side by side. At this time, the adjoining bleachers 10 can have the floor surface continuous without attaching the side rails 60, or can be separated by the individual auditoriums 10 by attaching the side rails 60.

  The back fence 70 has a rod-like insertion part 71 corresponding to the holes of the shelf receiving members 19 and 20 at the lower end. The side rail 70 is attached by inserting the insertion portion 71 of the back rail 70 into the holes of the shelf receiving members 19 and 20. FIG. 1 shows a state in which two back fences 70 are attached.

  Further, the protrusions 30 and 31 (engagement portions) can be detachably attached to the left and right side frames 11a and 11b (base) by screwing or the like.

In addition, the seat in the present invention refers not only to a seat provided by a seat board or a chair but also to all seats provided with a space for accommodating a person on the base. For example, flats and stairs correspond to the bleachers of the present invention. It is also free to add various accessories to the bleachers. FIG. 10 is an example in which a table 43 is attached to the front beams 13 a and 13 c instead of the seat plate 40 and a roof 45 is attached using the fence receiving member 19. The roof 45 is rotatably attached to the tip of the column 46. The roof 45 is accommodated along the column 46 when not in use, and can be supported by the arm 47 at either the seat side or the opposite side of the seat when in use. Such a movable roof 45 can be used as a roof (solid line) for a supervisor seat or the like by setting the back of the bleacher seat to the ground, in addition to being used as a roof for visitors (chain line). Moreover, as a material of the said roof 45, lightweight materials, such as a foldable sheet | seat and a corrugated sheet like a tarpaulin, are used preferably.
[Conveyor]
Two types of transfer devices 100 and 101 corresponding to the protruding directions of the protrusions 30 and 31 of the bleacher seat 10 are used for transporting the bleacher seat 10.

  FIG. 5 shows the transfer device 100 connected to the protrusion 30.

  The transport device 100 includes a lever rod 110 that lifts the bleacher seat 10, and a wheel 130 that is attached to a middle portion of the lever rod 110 in the longitudinal direction via a plate 120. The lever rod 110 has a lower end portion as an action portion and an upper end portion as a force point portion, and the operator operates in a direction to stand at the force point portion side and look at the action portion. The direction with the lower end is the front, and the direction with the upper end is the back. Further, the left and right directions of the operator are the left and right sides of the transport device 100.

  The lever rod 110 obliquely penetrates the plate 120 at one end side of the plate 120 arranged substantially horizontally, and is supported in an inclined posture by a wheel 130 attached to the plate 120. The wheel 130 is a fulcrum portion of the lever rod 110. A cylindrical collar 111 is attached to the lower end of the lever rod 110 and opens in the horizontal direction perpendicular to the lever rod 110. The collar 111 protrudes greatly from the lever rod 110 to the left, and serves as a connecting portion 112 that is engaged with the protrusion 30 of the auditorium 10 by external fitting. The connecting portion 112 has a hole 113 communicating with the hole 31 of the protrusion 30. On the other hand, the upper end portion of the lever rod 110 is bent substantially vertically to form a grip portion 114. The wheel 130 is a caster that turns in a horizontal plane and whose traveling direction is not limited, but can also stop the turning and restrict the traveling direction. All the wheels 130 may be casters, but in order to stably convey, it is preferable to dispose the casters in front of the conveying direction and dispose the fixed wheels on the rear side. The other end side (wheel side) of the plate 120 is inclined downward to form a pedal 121, and a U-shaped footrest 122 is attached to the lower end portion of the pedal 121. In addition, a triangular reinforcing plate 123 is attached to a corner where the lever rod 110 and the plate 120 intersect to stabilize the tilting posture of the lever rod 110. The gripping portion 114 is a force point portion of the lever rod 110, and the wheel 130 is a fulcrum portion of the lever rod 110.

  Moreover, the said conveying apparatus 100 is inserted in the hole 113 of the connection part 112, and the hole 32 of the processus | protrusion 30,31 of the bleacher seat 10, and is provided with the latching pin 140 hold | maintained in the lifted state. The locking pin 140 is connected to the end of the plate 120 by a chain 141.

  The transport device 101 connected to the protrusion 31 has the same structure as the transport device 100 except that the right side of the collar 111 is a connecting portion 112.

  As shown in FIG. 8, the two transfer devices 100 and 101 are arranged on the front side and the rear side of the bleacher seat 10, respectively, and an operator stands behind each of the transfer devices 100 and 101. That is, the conveyance device 100 having the connecting portion 112 on the left side is connected to the protrusion 30 protruding to the right side as viewed from the operator, and the protrusion 31 protruding to the left side as viewed from the operator is conveyed to the protrusion portion 30 on the right side. The device 101 is connected. 6A and 6B show the main part of the transport device 101 connected to the protrusion 31 on the rear side of the right side frame 11b.

In the illustrated example, the conveying devices 100 and 101 use right and left depending on the protruding direction of the protrusions 30 and 31. However, if the collar is protruded on both the left and right sides of the lever rod and the connecting portions are formed on both the left and right sides, the left and right are combined. This is a transfer device.
[Transportation and installation of bleachers]
The connection between the bleacher seat 10 and the transport devices 100 and 101, and the transport and installation of the bleacher seat 10 will be described with reference to FIGS. FIG. 7 shows a connection example between the protrusion 31 on the rear side of the right side frame 11b and the transport device 101.
(1) Right side view of FIG. 7 The bleacher seat 10 is placed on the ground G, and the side frame 11b is grounded. The lever rod 110 of the transport device 101 is tilted forward, the collar 111 is lowered, the connecting portion 112 is adjusted to the height of the protrusion 31 of the viewing seat 10, and the connecting portion 112 is externally fitted to the protrusion 31. As a result, the transport apparatus 101 is temporarily connected to the bleacher seat 10.
(2) Center view of FIG. 7 A foot is placed on the footrest 122 of the pedal 121 of the transport device 101, the gripping portion 114 of the lever rod 110 is pulled forward, and the lever 130 acting portion with the wheel 130 as a fulcrum by the lever principle. The connecting part 112 is raised. Thereby, the bleacher seat 10 is lifted from the ground G. Based on the principle of the lever, the heavy seat 10 can be lifted with a small human power.
(3) Left side view of FIG. 7 With the auditorium 10 lifted, the hole 113 of the connecting portion 112 of the lever rod 110 and the hole 32 of the protrusion 31 of the auditorium seat 10 are communicated to insert the locking pin 140 (FIG. 6A, see FIG. 6B). By inserting the locking pin 140, the connecting portion 112 can be prevented from spinning freely and the connected state can be stably maintained.
The connecting structure for externally fitting the connecting portion 112 to the protrusions 30 and 31 does not require a fastening operation such as screwing, and the connecting operation can be easily performed. Also, the hole 32 communicating with the protrusions 30 and 31 and the connecting portion 112, The connecting force can be increased by a simple operation of inserting the locking pin 140 into the 113.
(4) FIG.
The conveying devices 100 and 101 are connected to the other three protrusions 30 and 31 in the same manner to lift the bleacher seat 10 at the four corners. In the state where the bleacher seat 10 is lifted, the gripping part 114 of the lever rod of the transporting devices 100 and 101 is gripped and pulled or pushed to run the wheel 130 and transport it to the installation position. Since the wheel 130 is a free wheel, it can travel in any direction, but the wheel 130 can also be turned in a certain direction by stopping turning.
(5) When the bleacher seat 10 is transported to the installation location, the locking pins 140 of the transport devices 100 and 101 are pulled out, and the connection holding of the connecting portion 112 of the transport devices 100 and 101 and the protrusions 30 and 31 of the bleacher seat 10 is released. . When the connection is released, the landing is lowered by the weight of the bleacher seat 10. And it removes from the protrusions 30 and 31 of the connection part 112 of the lever rod 110, and removes the conveying apparatuses 100 and 101 from the bleacher seat 10. FIG.

  When the use of the bleacher seat 10 is finished, the transport devices 100 and 101 are attached in the same manner, transported to a storage location, and the transport devices 100 and 101 are removed.

  While the viewing seat 10 being transported is lifted and only the wheels 130 of the transporting devices 100 and 101 are grounded, the ground seat 10 is grounded on the lower surfaces of the left and right side frames 11a and 11b. Although the load of the viewing seat 10 being conveyed is concentrated on the wheel 130, the load is distributed to the side frames 11a and 11b having a larger area than the wheel 130 after the installation. For this reason, it is possible to minimize damage to the installation surface such as the lawn and the floor surface.

  The transport devices 100 and 101 are used only when the bleacher seat 10 is transported, and are not used during the installation and storage of the bleacher seat 10. Since the transport devices 100 and 101 have a short usage time, they are less damaged and deteriorated. Among them, the wheel 130 is a portion that is easily damaged due to the concentration of the load on the bleacher seat 10, but since it is only subjected to the load in a short time during conveyance, there is little damage or deterioration. Further, since the removed transfer devices 100 and 101 can be used to transfer another bleacher seat 10, a large-scale viewing can be performed with a small number of transfer devices 100 and 101 by sequentially transferring and installing a plurality of auditoriums 10. You can build a seat.

  The protruding direction of the protrusions 30 and 31 is not limited to the horizontal direction in the illustrated example, and protrusions protruding upward or obliquely upward are also included in the technical scope of the present invention. However, since the collar 111 (connecting portion 112) can be slid and engaged with the horizontal projections 30 and 31, the connecting operation is simple and a preferable protruding direction. In addition, the connection means of the seating area and the transport device in the present invention is not limited to the combination of the protrusion and the collar, and can be changed to other connection means. As another connection means, a combination of a protrusion (engagement portion) provided on the bleacher seat and a connection portion that scoops up this protrusion from below can be exemplified. FIG. 9A is an example in which a block-shaped connecting portion 150 that scoops up a protrusion is attached to the tip of the lever rod 110. On the upper surface of the connecting portion 150, cylindrical protrusions 30, 31 (see FIGS. 4A and 4B). A groove 151 having a semicircular cross section is provided, and a hole 152 communicating with the hole 32 of the protrusions 30 and 31 is formed in the groove bottom. The connecting part 150 is slid to fit the protrusions 30 and 31 into the groove 151, lift the bleacher seat by scooping up from below, and the locking pin 140 is inserted into the holes 32 and 151 communicating with the protrusions 30 and 31. . 9B shows a connecting portion 155 having a flat upper surface. A protruding portion 156 for preventing the scooped projections 30 and 31 from dropping is formed at the tip of the connecting portion 155, and the holes 32 of the protrusions 30 and 31 are formed on the upper surface. Is provided with a hole 157 for inserting the locking pin 140.

  As described above, in the connection portion that picks up the protrusion, the combination of the shape of the protrusion and the shape of the connection portion is not limited and is highly versatile. Of course, projections having shapes other than the cylindrical shape shown in the figure can be scooped up by the connecting portions 150 and 155. As a method for increasing the stability of the connected state in the scooping-up type connecting portion, a groove 151 corresponding to the shape of the protrusions 30 and 31 can be exemplified as the connecting portion 150 in FIG. 9A. Further, even in the connecting portion 155 without the groove 151 in FIG. 9B, the connecting state can be stabilized by using the locking pin 140.

  The wheel 130 can be directly attached to the lever rod 110 without the plate 120 interposed therebetween. However, if the plate 120 as shown in the example is used, the lever rod 110 can be supported in an inclined posture at an arbitrary angle depending on the mounting angle of the lever rod 110 with respect to the plate 120. The operability of the transport apparatuses 100 and 101 can be improved by setting the tilt angle so that the grip part 114 is close to 31 and has a height that makes it easy to grip the grip part 114. In addition, the rear portion of the plate 120 can be used as the pedal 121, and there is an effect of improving the operability such that it is easy to put a force when the pedal 121 is put on and the grip portion 114 is pulled. The number of wheels of the conveying device is not limited, and a plurality of wheels can be attached in parallel or in series.

  Further, the present invention does not define the number of transfer devices connected to one bleacher seat, and can be freely increased or decreased according to the size and weight of the bleacher seat. The viewing seat 10 in the illustrated example has a square base, and when the viewing seat 10 is lifted by connecting the transport devices 100 and 101 to the four corners, the lifting position of the viewing seat 10 is stabilized, so that it can be transported safely. Of course, since the conveying device can be connected if the engaging part is provided in the base, the form and the number of seats are not limited. The number of transfer devices connected to one bleacher and the connecting position can be set as appropriate according to the form and weight of the bleachers. In addition, when the engaging part is provided at a connecting position suitable for stable conveyance of the bleachers, if the engaging part becomes an obstacle after installation, a detachable engaging part should be adopted to remove the engaging part after transportation. You can also

  Further, the transport device can be used for transporting heavy objects other than the bleachers. If there is an engaging part such as a protrusion on the heavy object to be conveyed, it can be engaged with the connecting part of the conveying device. Can be conveyed by. Examples of the heavy objects include ball goals, machines, stage, stairs, and the like. In addition, the goal post corresponds to the base in contact with the installation surface in the goal, and an engaging portion is provided on the goal post to connect the conveying device. However, if the engaging portion protrudes from the goal post, it is dangerous and not preferable even if it is attached at a position that does not hinder the competition. In such a case, the engaging portion is made detachable by screwing or the like, and the engaging portion is attached during transport. The same applies to other heavy objects, and a detachable engaging portion is used when it becomes an obstacle after installation.

  The present invention can be used for transporting heavy objects such as bleachers.

1 ... Mobile bleacher 10 ... Left seat frame 11a (base)
11b Right side frame (base)
30, 31 ... projection (engagement part)
32... Holes 100 and 101... Transport device 110.
112 ... Connecting part 113 ... Hole 114 ... Holding part (power point part)
120 ... Plate 121 ... Pedal 130 ... Wheel (fulcrum)
140 ... locking pin G ... installation surface

Claims (7)

Consists of a bleacher seat provided with a space for accommodating people on a base in contact with the installation surface, and a transport device that transports the bleacher seat connected to the bleacher seat,
An engagement portion is provided on the base of the bleacher seat,
The transport device includes a lever rod and a wheel that is attached to an intermediate portion in the longitudinal direction of the lever rod to form a fulcrum portion, and the lever rod is provided at an action portion of a lower end as an engaging portion of the bleacher seat. A movable bleacher seat having a connecting portion that is detachably engaged, and a grip portion is formed at a power point portion at an upper end.   2. The movable type according to claim 1, wherein the engaging portion of the bleacher seat is a protrusion protruding from a base, and the connecting portion of the conveying device engaged with the protrusion is a cylindrical collar that is externally fitted to the protrusion. Bleachers.   The mobile viewing seat according to claim 2, wherein a hole communicating with the projection and the collar is formed, and a connecting posture of the viewing seat and the conveying device is maintained by inserting a locking pin into the hole.   4. The mobile bleacher according to claim 3, wherein a plate supporting the tilting posture of the lever rod is attached to a fulcrum portion of the lever rod, and a wheel is attached to the plate.   The mobile auditorium according to claim 4, wherein an end portion of the plate is inclined downward to form a pedal.   The movement according to any one of claims 1 to 5, wherein the base of the bleacher seat is a quadrangle, engagement portions are provided at four corners of the base, and a transport device is coupled to each engagement portion. Ceremony seat. It is a transport device that transports in connection with a heavy object provided with an engagement portion,
A wheel having an action part detachably engaged with an engaging part of the heavy object at a lower end part, and a lever rod having the upper end part as a grip part attached to a fulcrum part of an intermediate part in the length direction It is supported by the conveying apparatus characterized by the above-mentioned.

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