JP6873018B2 - Cart for transporting plate-shaped materials - Google Patents

Description

The present invention relates to a trolley for transporting plate-shaped material, for example, a trolley for transporting plate-shaped material that can be used for transporting a basket ceiling of an elevator.

As described in Patent Document 1, in an elevator, it may be necessary to replace the car ceiling in order to renew the lighting device provided on the car ceiling.

Japanese Unexamined Patent Publication No. 2013-63846

When replacing the car ceiling, the new car ceiling is carried to the elevator by the following procedure, for example. Specifically, first, the new basket ceiling is removed from the truck and placed on a commercially available trolley. The basket ceiling is heavy and dangerous if it falls over. Therefore, the basket ceiling is carried in a state of being supported from the left and right in the width direction and tied to the trolley by, for example, two maintenance workers.

In such a background, there may be a place where the height is low or a place where the width is narrow in the carry-in route when carrying the basket ceiling to the basket. In such a case, the maintenance worker must lift the basket ceiling on the trolley to temporarily change the relative position of the basket ceiling with respect to the trolley, or temporarily lower the basket ceiling from the trolley in order to pass through the relevant location. It doesn't become. Therefore, a great deal of effort is required for this measure.

Therefore, an object of the present invention is to transport the plate-shaped material so that the height and length of the plate-shaped material in the placed state can be easily changed and the plate-shaped material can be easily and safely transported regardless of the structure of the carry-in route. It is to provide a trolley.

In order to solve the above problems, the plate-shaped material transporting trolley according to the present invention (hereinafter, simply referred to as a trolley) is a trolley used for transporting the plate-shaped material, and is on the lower side in the height direction. Wheels attached to the front side and the rear side in the length direction, and the upper side in the height direction and rotatably attached to the front side in the length direction with respect to the first fulcrum, under the plate-like material. A base portion that can lock the side corners and has a lower locking portion including a substantially L-shaped lower locking surface in a side view, and the length in the length direction can be changed, and the plate. An upper hook that is the rear surface of the material and is rotatably attached to the upper side in the height direction with respect to the second fulcrum, including a substantially flat upper locking surface that can lock the upper side in the height direction. It has a stop portion, and extends in the height direction, which is the rear side of the base portion in the length direction and extends from the upper side in the height direction to the upper side in the height direction, and the height can be changed. A dimensional adjusting mechanism capable of adjusting the length of the base portion and the height of the extending portion in the height direction is provided.

According to the present invention, the lower locking portion is above the base portion and is arranged on the front side, and the upper locking portion extends from the rear side of the base portion in the height direction to the upper side of the extending portion in the height direction. Is placed in. In addition, the height of the extension portion in the height direction and the length of the base portion can be changed by the dimension adjustment mechanism. Therefore, the inclination angle with respect to the length direction of the plate-like material whose upper side is locked to the upper locking portion and whose lower side is locked to the lower locking portion can be appropriately adjusted. As a result, when passing through a low-height part of the carry-in route, the plate-like material can be easily passed by simply inclining the plate-like material at an angle closer to the length direction, and when passing through a narrow part. The plate-like material can be easily passed through the portion only by inclining the plate-like material at an angle closer to the height direction so that the length of the carriage is shortened. Therefore, the plate-like material can be easily and safely transported regardless of the structure of the carry-in route.

Further, in the present invention, the base portion has a base portion having a first through hole including a portion extending in the length direction, and at least a rear end portion thereof is housed in the first through hole, and the first through hole is accommodated. The extending portion in the height direction has a second through hole communicating with the first through hole, while having a first advancing / retreating portion capable of advancing / retreating in the length direction with respect to the inner peripheral surface of the hole. A pillar portion extending in the height direction and at least a lower end portion are housed in the second through hole, and a second advancing / retreating portion capable of advancing / retreating in the height direction with respect to the inner peripheral surface of the second through hole. Further, the rear end portion of the first advancing / retreating portion and the lower end portion of the second advancing / retreating portion are connected to each other, and at least a part in the extending direction is provided with a connecting member having a deformable structure. The dimension adjusting mechanism can adjust the protruding length of the second advancing / retreating portion protruding from the pillar portion, and when the second advancing / retreating portion moves in the height direction, the second advancing / retreating portion becomes the second advancing / retreating portion. wherein said first forward and reverse part wants tuna through the coupling member may be moved the lengthwise with a force received from the coupling member.

According to the above configuration, the height of the extending portion in the height direction and the length of the base portion can be adjusted at the same time only by adjusting the protruding length of the second advancing / retreating portion from the pillar portion. More specifically, the length of the base portion linked to it can be shortened by simply changing the height of the extending portion in the height direction to a higher value, and the height of the extending portion in the height direction can be changed to a lower height to link to it. The length of the base part can be increased. Therefore, the inclination of the plate-like material with respect to the length direction can be easily adjusted by a simple operation.

Further, in the present invention, the dimension adjusting mechanism rotates a rack provided at the rear end of the second advancing / retreating portion so as to extend in the height direction, a pinion that meshes with the rack, and the pinion. It may have a handle for movement.

According to the above configuration, the inclination of the plate-shaped material with respect to the length direction can be freely adjusted by simply operating the handle.

Further, in the present invention, at least a part of the extending direction may be composed of a steel chain, and a sprocket for guiding the chain and a guide portion for guiding the lower side of the chain may be provided.

According to the above configuration, a part of the connecting member can be smoothly bent from the height direction to the length direction, and the interlocking operation of the first advancing / retreating portion and the second advancing / retreating portion via the connecting member can be smoothly performed. it can.

Further, in the present invention, the lower end portion of the lower locking portion is attached to the outer peripheral side of the first annular member that can rotate around the first fulcrum, and the upper end portion of the upper locking portion is attached. May be attached to the outer peripheral side of the second annular member that can rotate around the second fulcrum.

According to the above configuration, the inclination angles of the lower and upper locking surfaces with respect to the length direction can be easily adjusted.

Further, in the present invention, the lower locking surface and the upper locking surface may be made of rubber.

According to the above configuration, a large frictional force can be generated between the lower and upper locking surfaces and the plate-shaped material, and the plate-shaped material can be reliably locked on the lower and upper locking surfaces. In addition, it is possible to prevent the plate-like material from being scratched by contact with the lower and upper locking surfaces.

According to the present invention, the height and length of the plate-shaped material in the placed state can be easily changed, and the plate-shaped material can be easily and safely transported regardless of the structure of the carry-in route.

It is a side view when the trolley which concerns on one Embodiment of this invention is seen from the side, and is the side view which shows the trolley in the state which carries the basket ceiling as an example of a plate-like material. It is a perspective view when the upper side of the extension part in the height direction of a trolley is seen from diagonally above. It is a top view when the front side of the base part of a bogie is seen from above. It is a perspective view corresponding to FIG. 2 which shows the state which the height of the extending portion in a height direction is higher than the state shown in FIG. FIG. 3 is a plan view corresponding to FIG. 3 showing a state in which the length of the base portion is shorter than that in the state shown in FIG.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. When a plurality of embodiments and modifications are included in the following, it is assumed from the beginning that a new embodiment is constructed by appropriately combining the characteristic portions thereof. Further, in the following description and drawings, the X direction is the length direction of the plate-shaped material transporting trolley (hereinafter, simply referred to as the trolley) 1, the Y direction is the width direction of the trolley 1, and the Z direction is. This is the height direction of the dolly 1. The X, Y, and height directions are orthogonal to each other.

FIG. 1 is a side view of the carriage 1 according to the embodiment of the present invention when viewed from the side (outer side in the Y direction), and carries a basket ceiling 98 as an example of a plate-shaped material. It is a side view which shows the carriage 1 of a state. Further, FIG. 2 is a perspective view when the upper side of the height-direction extending portion 50 of the carriage 1 is viewed from diagonally above, and FIG. 3 is a perspective view when the front side of the base portion 20 of the carriage 1 is viewed from above. It is a plan view. In FIG. 1, in order to clearly show the internal structure housed in the base portion 21 and the pillar portion 51, which will be described later, the internal structure is shown by a solid line.

As shown in FIG. 1, the carriage 1 includes a base portion 20 and two height extension portions 50, and the base portion 20 includes a base portion 21 and two first advancing / retreating portions 22. The base 21 has a rectangular parallelepiped (plate-like) appearance and has two first through holes 24. As shown in FIG. 3, the two first through holes 24 have the same shape and are arranged at intervals in the Y direction. Each first through hole 24 includes an X-direction extending hole portion 24a and an arc-shaped extending hole portion 24b. The X-direction extending hole portion 24a defines an internal space of a substantially rectangular parallelepiped (plate shape) and extends in the X direction, and has a substantially rectangular opening on the front side in the X direction.

The arc-shaped extending hole portion 24b is connected to the X-direction extending hole portion 24a. The arc-shaped extending hole portion 24b has an opening on the front side in the X direction and an opening on the upper side in the Z direction. The opening on the front side in the X direction is connected to the opening on the rear side in the X direction of the extending hole portion 24a in the X direction, and the opening on the upper side in the Z direction faces the upper side in the Z direction. The arc-shaped extending hole portion 24b is curved in an arc shape so as to connect the opening on the front side in the X direction and the opening on the upper side in the Z direction, and the extending direction varies by about 90 degrees from the X direction to the Z direction.

Each first advancing / retreating portion 22 includes a main body portion 30, a front wheel 31, a lower locking portion 32, and two first ring members 33. The cross-sectional shape of the main body 30 on the YZ plane is slightly smaller than the cross-sectional shape of the X-direction extending hole portion 24a of the first through hole 24 on the YZ plane, and has a rectangular shape corresponding to the cross-sectional shape. .. The rear end of the main body 30 is housed in the X-direction extending hole 24a regardless of the length of the carriage 1 in the X direction, and the portion of the main body 30 housed in the X-direction extending hole 24a is The length of the base portion 20 in the X direction becomes shorter and larger.

As shown in FIG. 1, the lower locking portion 32 is provided on the front side and the upper side of the main body portion 30. Specifically, a round bar-shaped portion 38 extending in the Y direction is provided on the front side and the upper side of the main body portion 30. The length of the round bar-shaped portion 38 is longer than the width of the main body portion 30 (length in the Y direction), and the round bar-shaped portion 38 projects outward from the main body portion 30 on both sides of the main body portion 30 in the Y direction. It has a part 39. The protruding portion 39 has a round bar shape having a smaller outer diameter than other portions other than the protruding portion in the round bar-shaped portion 38, and the central axis of the protruding portion 39 is located on the same straight line as the central axis of the other portion. ..

Each first annular member 33 is attached to the outer peripheral surface of the protrusion 39 by, for example, cold fitting, shrink fitting, or press fitting. When a force larger than the static friction force is applied, the first annular member 33 rotates around the central axis of the protruding portion 39 as a fulcrum. The central axis of the protrusion 39 constitutes the first fulcrum. Even if the first annular member 33 is fitted into the protruding portion 39 in the Y direction until it comes into contact with the end surface of the other portion in the Y direction, and then a retaining ring (not shown) is attached to the tip portion of the protruding portion 39 in the Y direction. Well, in this case, it is preferable that the detachment of the first ring member 33 can be suppressed.

The lower locking portion 32 has a substantially L-shaped shape when viewed from the outside in the Y direction, and includes a substantially L-shaped lower locking surface 40. The lower locking portion 32 includes a metal or resin main body portion 41 and a rubber locking surface covering portion 42. The main body 41 has a substantially L-shaped shape when viewed from the side, and the locking surface covering portion 42 is fixed to the L-shaped inner side surface of the main body 41 with an adhesive or the like. The front side surface of the locking surface covering portion 42 constitutes the lower locking surface 40.

The front wheel 31 has a known structure and is rotatably attached to the front side and the lower side of the main body portion 30. The front wheel 31 is attached to the main body 30 in a state in which the inclination angle of the central axis with respect to the Y direction can be changed. Further, the dolly 1 has two rear wheels 35. The two rear wheels 35 have a known structure and are rotatably attached to the rear side and the lower side of the base 21 at intervals in the Y direction. The rear wheel 35 is attached to the base 21 in a state in which the inclination angle of the central axis with respect to the Y direction can be changed. The height position of the lower end of the front wheel 31 substantially coincides with the height position of the lower end of the rear wheel 35.

Each height direction extending portion 50 extends upward in the Z direction from the rear side and the upper side of the base portion 20. As shown in FIG. 2, the two extending portions 50 in the height direction are arranged at the same position in the X direction with an interval in the Y direction. As shown in FIG. 1, each height-direction extending portion 50 has a pillar portion 51 and a second advancing / retreating portion 52, and the pillar portion 51 includes a second through hole 54 extending in the Z direction. The second through hole 54 includes an upper opening 54a in the Z direction and a lower opening 54b in the Z direction. The pillar portion 51 is joined to the base portion 21 by welding or the like in a state where the lower opening 54b in the Z direction communicates with the upper opening 24c in the Z direction of the first through hole 24.

The second advancing / retreating portion 52 includes a main body portion 60, an upper locking portion 62, and two second ring members 63. The cross-sectional shape of the main body 60 on the XY plane is slightly smaller than the cross-sectional shape of the second through hole 54 on the XY plane, and has a rectangular shape corresponding to the cross-sectional shape. The lower end of the main body 60 is housed in the second through hole 54 regardless of the length of the extending portion 50 in the height direction, and the portion of the main body 60 housed in the second through hole 54 is high. The height of the directional extending portion 50 increases as the height decreases.

The upper locking portion 62 is provided on the upper side of the main body portion 60. A round bar-shaped portion 68 extending in the Y direction is provided at the upper end portion of the main body portion 60. The length of the round bar-shaped portion 68 is longer than the width of the main body portion 60 (length in the Y direction), and the round bar-shaped portion 68 projects outward from the main body portion 60 on both sides of the main body portion 60 in the Y direction. It has a part 69. The protruding portion 69 has a round bar shape having a smaller outer diameter than other portions other than the protruding portion in the round bar-shaped portion 68, and the central axis of the protruding portion 69 is located on the same straight line as the central axis of the other portion.

The second annular member 63 is attached to the outer peripheral surface of the protrusion 69 by, for example, cold fitting, shrink fitting, or press fitting. When a force larger than the static friction force is applied, the second annular member 63 rotates around the central axis of the protruding portion 69 as a fulcrum. The central axis of the protrusion 69 constitutes the second fulcrum. The second annular member 63 may be fitted into the protruding portion 69 in the Y direction until it abuts on the Y-direction end surface of the other portion, and then a retaining ring (not shown) may be attached to the Y-direction tip portion of the protruding portion 69. Often, in this case, the detachment of the second ring member 63 can be suppressed, which is preferable.

The upper locking portion 62 has a plate shape and includes a substantially rectangular upper locking surface 70. The upper locking portion 62 includes a metal or resin main body portion 71 and a rubber locking surface covering portion 72. The main body 71 has a substantially rectangular parallelepiped shape, and the locking surface covering portion 72 is fixed to the upper surface of the main body 47 with an adhesive or the like. The upper surface of the locking surface covering portion 72 constitutes the upper locking surface 70.

The carriage 1 further includes a connecting member 80 and a sprocket 81. The connecting member is composed of, for example, a part of an endless track (caterpillar (registered trademark)) and is composed of a non-annular chain. More specifically, the connecting member 80 is composed of, for example, a crawler belt in which a large number of metal pieces (links) 88 are connected. One end of the connecting member 80 is connected to the rear end of the first advancing / retreating portion 22 in the X direction, and the other end of the connecting member 80 is connected to the lower end of the second advancing / retreating portion 52. .. The connecting member 80 is housed in a part of the first through hole 24 and a part of the second through hole 54 so as to straddle the connecting portion between the first through hole 24 and the second through hole 54. A guide portion 82 made of a material having a small frictional force, for example, a resin material, is provided below the arc-shaped extending hole portion 24b. A part of the connecting member 80 in the extending direction moves in the arc-shaped extending hole portion 24b so as to be guided by the guide portion 82 thereof.

As shown in FIG. 1, the YZ cross section of the thickest portion of the piece 88 of the connecting member 80 is slightly smaller than the YZ cross section of the X-direction extending hole portion 24a of the first through hole 24, and the YZ cross section is concerned. It has a shape corresponding to. Further, the sprocket 81 is rotatably attached to the base portion 21 so that a part of the outer peripheral surface thereof is rotatably attached to the upper bending portion of the arcuate extending hole portion 24b of the first through hole 24. The sprocket 81 has a plurality of protrusions (not shown). The plurality of protrusions are arranged so as to be spaced apart from each other in the circumferential direction, and each protrusion extends in the radial direction. Each protrusion engages, for example, a gap created between adjacent pieces 88 of the connecting member 80. At least a part of the connecting member 80 located in the arcuate extending hole portion 24b is guided by the sprocket 81. As a result, the traveling direction of the connecting member 80 can be smoothly changed from the Z direction to the X direction or from the X direction to the Z direction.

The carriage 1 further includes a rack and pinion mechanism 90. Specifically, a rack 91 extending in the Z direction is provided on the rear side surface of the second advancing / retreating portion 52 in the X direction, and a pinion 92 is rotatably attached to the rear side in the X direction on the pillar portion 51. The pinion 92 meshes with the rack 91. Pinions 92 are provided at both ends of the pinion shaft 94 (see FIG. 2) extending in the Y direction in the Y direction.

As shown in FIG. 2, the carriage 1 further includes a gearbox 96. The pinion shaft 94 passes through the gearbox 96 and is rotatably fixed to the case of the gearbox via, for example, a rolling bearing. The pinion shaft 94 has a bevel gear (not shown) at a portion located in the gearbox 96. The bevel gear of the pinion shaft 94 meshes with a bevel gear provided at one end of a shaft member (not shown) extending in the X direction. A handle 97 is attached to the other end of the shaft member. The rack and pinion mechanism 90 and the handle 97 constitute a dimensional adjustment mechanism.

In the above configuration, when the user rotates the handle 97 clockwise, the shaft member rotates clockwise when viewed from the handle 97 side, and the rotational power of the shaft member meshes with each other. It is converted into the rotational power of. Due to this conversion of rotational power, the pinion shaft 94 rotates clockwise when viewed from the pinion 92 side, and the pinion 92 (see FIG. 1) rotates clockwise. As a result, the second advancing / retreating portion 52 moves upward in the Z direction with respect to the pinion 92, the height of the extending portion 50 in the height direction increases, and the upper locking portion 62 moves upward in the Z direction.

When the second reciprocating unit 52 is moved in the Z direction upward, the first forward and reverse part 22 has tuna wants via a connecting member 80 to the second reciprocating unit 52, pulled by the connecting member 80 after the X direction It moves to the side and moves into the first through hole 24. That is, the first advancing / retreating portion 22 moves to the rear side in the X direction in conjunction with the upward movement of the second advancing / retreating portion 52 in the X direction, and the length of the base portion 20 in the X direction becomes shorter.

In this way, the height extending portion 50 shifts from the state shown in FIG. 2 to the state in which the second advancing / retreating portion 52 protrudes upward in the Z direction from the pillar portion 51 shown in FIG. 4, and the base portion 20. Shifts from the state shown in FIG. 3 to the state in which the first advancing / retreating portion 22 shown in FIG. 5 is further accommodated in the first through hole 24. Therefore, the basket ceiling 98 locked to the upper locking surface 70 of the upper locking portion 62 and the lower locking surface 40 of the lower locking portion 32 is in a state of lying closer to the X direction, and as a result, The trolley 1 can easily pass through a place where the height is low.

On the other hand, when the user rotates the handle 97 counterclockwise, the shaft member rotates counterclockwise when viewed from the handle 97 side, and the rotational power of the shaft member meshes with each other. It is converted into the rotational power of. Due to this conversion of rotational power, the pinion shaft 94 rotates counterclockwise when viewed from the pinion 92 side, and the pinion 92 (see FIG. 1) rotates counterclockwise. As a result, the second advancing / retreating portion 52 moves downward in the Z direction with respect to the pinion 92, the height of the extending portion 50 in the height direction becomes low, and the upper locking portion 62 moves downward in the Z direction.

When the second reciprocating unit 52 is moved in the Z-direction lower side, the first forward and reverse part 22 has tuna wants via a connecting member 80 to the second reciprocating unit 52, X-direction are pushed out to the connecting member 80 Move to the front side. That is, the first advancing / retreating portion 22 moves forward in the X direction in conjunction with the downward movement of the second advancing / retreating portion 52 in the X direction, and the length of the base portion 20 in the X direction becomes longer. As described above, the YZ cross section of the thickest portion of the piece 88 of the connecting member 80 is slightly smaller than the YZ cross section of the X-direction extending hole portion 24a of the first through hole 24, and corresponds to the YZ cross section. Has a shape to be used. Therefore, the connecting member 80 is unlikely to be deformed such as bending upward during movement, and the first advancing / retreating portion 22 is pushed out to the connecting member 80 in a smooth operation.

In this way, the height extending portion 50 shifts from the state shown in FIG. 4 to the state in which the second advancing / retreating portion 52 shown in FIG. 2 is housed in the second through hole 54 of the pillar portion 51. The base portion 20 shifts from the state shown in FIG. 5 to the state in which the first advancing / retreating portion 22 shown in FIG. 3 protrudes forward from the first through hole 24 in the X direction. Therefore, the basket ceiling 98 locked to the upper locking surface 70 of the upper locking portion 62 and the lower locking surface 40 of the lower locking portion 32 is in a standing state closer to the Z direction, and as a result, The trolley 1 can easily pass through a narrow portion.

According to the above embodiment, the lower locking portion 32 is located above the base portion 20 and is arranged on the front side, and the upper locking portion 62 extends in the height direction extending from the rear side of the base portion 20 in the Z direction. It is arranged above the existing portion 50. Further, the rack and pinion mechanism 90 can change the height of the extending portion 50 in the height direction and the length of the base portion 20. Therefore, the inclination angle of the basket ceiling 98 with respect to the X direction, in which the upper side is locked to the upper locking portion 62 and the lower side is locked to the lower locking portion 32, can be appropriately adjusted. Therefore, the height and length of the basket ceiling 98 in the mounted state can be easily changed, and the heavy basket ceiling 98 can be easily and safely transported regardless of the structure of the carry-in route.

Further, the first forward and reverse part 22 and the second reciprocating unit 52 are tuna wants via a connecting member 80. Therefore, the height of the extending portion 50 in the height direction and the length of the base portion 20 can be adjusted at the same time only by adjusting the protruding length of the second advancing / retreating portion 52 from the pillar portion 51 with the handle 97. More specifically, the length of the base portion 20 linked to the height can be shortened by simply changing the height of the extending portion 50 in the height direction to a higher height, and the height of the extending portion 50 in the height direction can be changed to a lower height. , The length of the base portion 20 linked to it can be increased. Therefore, the inclination of the basket ceiling 98 with respect to the X direction can be easily adjusted by a simple operation.

Further, a dimensional adjustment mechanism is provided at the rear end of the second advancing / retreating portion 52 so as to extend in the Z direction, a pinion 92 that meshes with the rack 91, and a pinion 92 for rotating the pinion 92. It has a handle 97 and. Therefore, the inclination of the basket ceiling 98 with respect to the Z direction can be easily adjusted by simply operating the handle 97.

Further, at least a part of the connecting member 80 is composed of a steel chain, and the carriage 1 includes a sprocket 81 for guiding the chain and a guide portion 82 for guiding the lower side of the chain. Therefore, a part of the connecting member 80 can be smoothly bent from the Z direction to the X direction, and the interlocking operation of the first advancing / retreating portion 22 and the second advancing / retreating portion 52 via the connecting member 80 can be made smooth.

Further, the lower end portion of the lower locking portion 32 is attached to the outer peripheral side of the first annular member 33 that can rotate around the first fulcrum, and the upper end portion of the upper locking portion 62 is the second. It is attached to the outer peripheral side of the second ring member 63 that can rotate around the fulcrum. Therefore, the inclination angles of the lower and upper locking surfaces 40 and 70 with respect to the X direction can be easily adjusted.

Furthermore, since the lower and upper locking surfaces 40,70 are made of rubber, a large frictional force can be generated between the lower and upper locking surfaces 40,70 and the basket ceiling 98. The basket ceiling 98 can be securely locked by the lower and upper locking surfaces 40 and 70. Further, it is possible to prevent the basket ceiling 98 from being scratched by contact with the lower and upper locking surfaces 40 and 70.

The present invention is not limited to the above-described embodiment and its modifications, and various improvements and modifications can be made within the scope of the claims of the present application and the equivalent scope thereof.

For example, in the above embodiment, the dimension adjusting mechanism includes one rack and pinion mechanism 90, and the rack and pinion mechanism 90 simultaneously adjusts the height of the extending portion 50 in the height direction in the Z direction and the length of the base portion 20 in the X direction. Was explained. However, the dimension adjusting mechanism may include an elongated hole and a fastening member (for example, a bolt and a nut), and by using the elongated hole and the fastening member to change the fixing position of the second advancing / retreating portion to the column portion, the column portion The amount of protrusion of the second advancing / retreating portion with respect to the relative may be varied. Then, by varying the amount of protrusion, the first advancing / retreating portion connected to the second advancing / retreating portion via the connecting member is moved in the X direction, and the height of the extending portion in the height direction in the Z direction and the base portion are moved. The length in the X direction may be adjusted at the same time.

Further, the first advancing / retreating portion 22 of the base portion 20 and the second advancing / retreating portion 52 of the extending portion 50 in the height direction are connected by a connecting member 80, and only the height of the extending portion in the height direction is provided by one rack pinion mechanism 90. The case where the height of the extending portion 50 in the height direction in the Z direction and the length of the base portion 20 in the X direction are adjusted at the same time has been described. However, the height of the extending portion in the height direction in the Z direction and the length of the base portion in the X direction may be adjusted independently of each other. For example, the dimension adjusting mechanism is the height of the extending portion in the height direction in the Z direction. A rack and pinion mechanism or a long hole and a fastening member for adjusting the height of the base portion and a rack and pinion mechanism or a long hole and a fastening member for adjusting the length of the base portion in the X direction may be included. In this way, the connecting member, the sprocket, and the guide portion may be omitted.

Further, a case where the length of the base portion 20 and the height of the extending portion 50 in the height direction are adjusted by the rack and pinion mechanism 90 has been described. However, at least one of the adjustment of the length of the base portion and the adjustment of the height of the extending portion in the height direction may be performed by using an electric cylinder or a hydraulic jack.

Further, when a force larger than the static friction force is applied to the first annular member 33, the first annular member 33 rotates about the central axis of the protruding portion 39 as a fulcrum, and a force larger than the static friction force is applied to the second annular member 63. The case of rotating with the central axis of the protruding portion 69 as a fulcrum has been described. However, a rolling bearing may be arranged between at least one of the first and second annular members and the protrusion, and at least one of them may be freely rotatable with respect to the protrusion. In this case, it is preferable to provide a stopper mechanism that prevents the rotation of at least one of the first and second ring members after appropriately adjusting the rotation angle. Such a stopper mechanism can be easily realized by, for example, a known mechanism such as a stopper that prevents the wheel from moving when stopped in a wheelchair.

Further, the case where the lower and upper locking portions 32 and 62 are fixed to the first and second annular members 33 and 63 and can rotate has been described, but at least one of the lower and upper locking portions has been described. One may be non-rotatable. Further, although the case where the lower and upper locking surfaces 40 and 70 are made of rubber has been described, at least one of the lower and upper locking surfaces may be made of a material other than rubber. Further, although the case where the plate-shaped material is the basket ceiling of the elevator basket has been described, the plate-shaped material may be any material having a plate shape, for example, a glass plate or the like.

1 trolley, 20 base, 21 base, 22 1st advance / retreat, 24 1st through hole, 31 front wheel, 32 lower locking part, 33 1st ring member, 35 rear wheel, 40 lower locking Surface, 42,72 Locking surface covering part, 50 Height extending part, 51 Pillar part, 52 Second advancing / retreating part, 54 Second through hole, 62 Upper locking part, 63 Second ring member, 70 Upper side Locking surface, 80 connecting members, 81 sprockets, 82 guides, 90 rack and pinion mechanism, 91 racks, 92 pinions, 97 handles, 98 basket ceiling, X direction, length direction, Z direction, height direction.

Claims (6)

A trolley for transporting plate-shaped materials used to transport plate-shaped materials.
Wheels attached to the front side and the rear side in the length direction on the lower side in the height direction, and the upper side in the height direction and the front side in the length direction can be rotated with respect to the first fulcrum. It is attached and has a lower locking portion that can lock the lower corner portion of the plate-shaped material and includes a substantially L-shaped lower locking surface in a side view, and the length in the length direction varies. With the possible base and
It is rotatably attached to the upper side in the height direction with respect to the second fulcrum, including the substantially flat upper locking surface which is the rear surface of the plate-like material and can lock the upper side in the height direction. A height direction having an upper locking portion, which is the rear side of the base portion in the length direction and extends from the upper side in the height direction to the upper side in the height direction so that the height can be changed. With the extension part,
A dimensional adjustment mechanism capable of adjusting the length of the base portion and the height of the extending portion in the height direction,
A trolley for transporting plate-shaped materials. The base portion has a base portion having a first through hole including a portion extending in the length direction, and at least a rear end portion thereof is housed in the first through hole and is formed on an inner peripheral surface of the first through hole. On the other hand, the extending portion in the height direction has a second through hole communicating with the first through hole and extends in the height direction, while having a first advancing / retreating portion capable of advancing / retreating in the length direction. A pillar portion and at least a lower end portion thereof are housed in the second through hole, and have a second advancing / retreating portion capable of advancing / retreating in the height direction with respect to the inner peripheral surface of the second through hole.
Further, a connecting member is provided which connects the rear end portion of the first advancing / retreating portion and the lower end portion of the second advancing / retreating portion, and has a structure in which at least a part in the extending direction is deformable.
The dimension adjusting mechanism can adjust the protruding length of the second advancing / retreating portion protruding from the pillar portion.
When the second reciprocating unit to move the height direction, the first reciprocating unit wants tuna through said connecting member to said second reciprocating portion, said length by a force received from the coupling member The trolley for transporting a plate-shaped material according to claim 1, which moves in a direction. The dimensional adjustment mechanism
A rack provided at the rear end of the second advancing / retreating portion so as to extend in the height direction, and
With a pinion that meshes with the rack,
A handle for rotating the pinion and
The plate-shaped transport trolley according to claim 2. At least a part of the extending direction is composed of a steel chain.
The sprocket that guides the chain and
A guide unit that guides the lower side of the chain
The plate-shaped transport trolley according to claim 2 or 3. The lower end of the lower locking portion is attached to the outer peripheral side of the first annular member that can rotate around the first fulcrum, and the upper end of the upper locking portion is the second fulcrum. The plate-shaped material transporting trolley according to any one of claims 1 to 4, which is attached to the outer peripheral side of the second annular member that can rotate around the above. The trolley for transporting a plate-shaped material according to any one of claims 1 to 5, wherein the lower locking surface and the upper locking surface are made of rubber.

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