JP7445448B2 - Manual transport trolley for building materials - Google Patents

Description

The present invention relates to a manual transport vehicle for building materials that can be manually driven and is used to transport building materials to a construction material installation site, etc. It can be used to transport various building materials such as door frames whose inner entrances and exits are opened and closed, partitions, shutter curtains of shutter devices, wall materials, floor materials, and ceiling materials.

Patent Document 1 listed below discloses a construction material transport vehicle for transporting construction materials to a predetermined location such as a construction material installation location, and this vehicle is used to transport construction materials such as a swinging door or a door frame of a swinging door device. The transport vehicle is a manually driven transport vehicle equipped with running wheels for manual travel.

JP2019-89381A

In order to be able to manually transport building materials by running on running wheels, even if the building materials are heavy objects such as fire doors, it is necessary to manually transport the building materials using a manual transport vehicle. There is a need for a vehicle that can be moved easily, reduce the burden on workers, and facilitate the transportation of building materials.

An object of the present invention is to provide a hand-operated transport vehicle for building materials that can be driven manually and easily, reduce the burden on workers, and facilitate transport of construction materials.

A manual traveling type conveyance vehicle for building materials according to the present invention is a manually traveling type conveyance vehicle for building materials, which is equipped with running wheels for manually traveling in order to transport building materials, wherein the traveling wheel is one main wheel. and one sub-wheel disposed on at least one side of the main wheel in the traveling direction, and the rotation center axis of the main wheel and the rotation center axis of the sub-wheel are parallel to each other. In addition, in the upright position, the height position of the lower end of the secondary wheel is higher than the height position of the lower end of the main wheel, and it is possible to change from the upright position to the inclined position manually. Accordingly, both the main wheel and the subwheel are in contact with a running surface, and the vehicle is manually driven.

According to the transport vehicle according to the present invention, the transport vehicle has, as running wheels, one main wheel and one sub-wheel disposed on at least one side of both sides of the main wheel in the running direction. The central axis of rotation of the main wheel and the central axis of rotation of the secondary wheel are parallel to each other, and when the main wheel is in an upright position, the height of the lower end of the secondary wheel is higher than the height of the lower end of the main wheel. Since the height position is high, by manually changing from the upright position to the tilted position, both the main wheels and the secondary wheels will be in contact with the running surface, which makes it difficult to transport building materials. , the vehicle may be manually changed from an upright position to a tilted position, both the main wheels and the secondary wheels are brought into contact with the running surface, and the vehicle is manually driven using a pushing force from the hand.

When changing from an upright position to a tilted position, if the inclination direction is set to the front side, which is the direction in which the building material will be moved, the center of gravity of the building material can be moved to the front side in the direction in which it will be moved, and by this movement of the center of gravity, manual This allows you to drive easily. Also, if the direction of inclination is on the rear side opposite to the direction of travel, the pushing force by the hand will have a component in the lifting direction, and this hand will push diagonally upward. The transport vehicle can be moved manually and easily, thereby reducing the burden on workers and making it easier to transport building materials.

In the transport vehicle according to the present invention described above, the arrangement position of the main wheel and the arrangement position of the subwheel in the axial direction of the rotation center axis of the main wheel may be shifted from each other, or may be at the same position or approximately the same position. It's okay.

In the latter case, if the main wheel and the secondary wheel are located at the same position or approximately the same position in the axial direction of the main wheel's rotation center axis, it is possible to manually tilt the vehicle from an upright position. Manual traveling work is performed by changing the posture and bringing both the main wheel and the secondary wheel into contact with the traveling surface, by tilting the entire transport vehicle according to the present invention in the axial direction of the rotation center axis of the main wheel. It can be easily done without.

Further, the number of secondary wheels provided in the transport vehicle according to the present invention may be one, which is disposed on one side in the traveling direction of the main wheels, or one, which is disposed on both sides in the traveling direction of the main wheels. You can also use two pieces.

Among these, if the number of secondary wheels is two arranged on both sides in the direction of travel by the main wheels as in the latter case, no matter which side of the direction of travel by the main wheels the vehicle travels. By manually changing from the upright position to the inclined position, both the main wheels and the secondary wheels can be brought into contact with the running surface, so the main wheels can move building materials to any side of the running direction. Transport work can be carried out easily.

In addition, when the number of secondary wheels provided in the transport vehicle according to the present invention is two, which are arranged on both sides in the traveling direction of the main wheels, each secondary wheel is disposed on both sides in the traveling direction of the main wheels. The distances to the wheels may be different, or the distances from the main wheels to each of the sub wheels in the traveling direction of the main wheels may be the same distance or approximately the same distance.

Among these, if the distance from the main wheel to each subwheel in the running direction of the main wheel is the same distance or approximately the same distance, as in the latter case, the main wheel and one of the two subwheels In order to run with the wheels in contact with the running surface, the posture change operation for manually changing from an upright posture to a tilted posture is performed by setting the main wheels at the same inclination angle or approximately the same inclination angle on both sides of the running direction. Therefore, this work can be carried out easily.

Further, it is preferable that the carrier according to the present invention is rotatable about a vertical line passing through the center of the main wheels when in an upright position.

According to this, when the transport vehicle according to the present invention is in an upright position, it can be rotated around a vertical line passing through the center of the main wheels, making it easy to change the orientation of the transport vehicle. As a result, after changing the orientation of the transport vehicle, the transport vehicle can be manually changed from the upright position to the inclined position as described above, and the main wheels and one subwheel are brought into contact with the running surface. can run in any direction.

Further, as described above, by manually changing the transport vehicle according to the present invention from an upright position to an inclined position, it is possible to run the transport vehicle with the main wheels and one subwheel in contact with the running surface. In order to do this, the transport vehicle according to the present invention is provided with a hand contact portion that the worker's hand comes into contact with, and the worker changes from an upright posture to a tilted posture by the hand that comes into contact with the hand contact portion. By doing so, the main wheels and one subwheel may be able to travel with the main wheels in contact with the running surface, or alternatively, the transport vehicle according to the present invention may be mounted on a mounting member on which building materials are mounted. The building materials placed on this mounting member are held in the hands of the worker carrying the building materials, and the worker changes from an upright position to an inclined position with his hands, and also Alternatively, the vehicle may be moved by a pushing force.

Of these, according to the latter, the transport vehicle according to the present invention can be used to handle building materials placed on the mounting member without providing a hand contact portion that comes into contact with the worker's hand. The carrier vehicle according to the present invention can be changed from an upright posture to a tilted posture by the operator's grasped hand, and can also be driven by a pushing force from the hand. It can be a simple structure.

Further, the carrier according to the present invention is provided with a slide member that can freely slide in the vertical direction with respect to the main wheel and the subwheel, and when the slide member reaches the lowest position, The height position of the lower end surface is set to be the same as or lower than the height position of the lower end of the main wheels, whereby the transport vehicle according to the present invention is placed in an upright position by grounding the lower end surface of the slide member. It may also be possible to stand on its own.

According to this, as described above, when the transport vehicle according to the present invention is in an upright position, even if the height position of the lower end of the secondary wheel is higher than the height position of the lower end of the main wheel, When the slide member reaches its lowest position, the height position of the lower end surface of this slide member is the same as or lower than the height position of the lower end of the main wheel, so that the slide By grounding the lower end surface of the member, the carrier according to the present invention can stand upright and stand on its own, making it easy to store the carrier according to the present invention, and also to lift the carrier according to the present invention. Work such as transporting it to another location can also be done easily.

In this way, the carrier according to the present invention is provided with a slide member that can freely slide in the vertical direction with respect to the main wheel and the subwheel, and when the slide member reaches the lowest position. The height position of the lower end surface of the slide member is set to be the same as the height position of the lower end of the main wheel or lower than this height position, whereby the transport vehicle according to the present invention can be moved by grounding the lower end surface of the slide member. If it is possible to stand on its own in an upright position, a placing member on which building materials are placed is placed on the sliding member, and this placing member is formed with dimensions such that at least a portion thereof is exposed horizontally from the sliding member. The height position of this bottom face part may be the same as or substantially the same as the height position of the lower end face of the slide member.

According to this, when the carrier vehicle according to the present invention is able to stand on its own in an upright position due to the lower end surface of the slide member being grounded, the bottom surface of the mounting member is also grounded or substantially grounded. The bottom surface portion of the mounting member allows the carrier according to the present invention to stand on its own in an upright position more reliably.

In addition, the placing member on which the building material is placed is arranged on the carrier according to the present invention in this way, and the placing member is attached to the bottom surface which is formed with dimensions such that at least a portion thereof is exposed in the horizontal direction from the slide member. If the height position of this bottom part is the same or approximately the same as the height position of the lower end surface of the slide member, only a part of this bottom part should be moved horizontally from the slide member. Alternatively, the mounting member may be attached to the outer surface of the slide member such that the entire bottom portion is exposed horizontally from the slide member.

Of these, according to the latter, the entire bottom surface of the mounting member is exposed in the horizontal direction from the slide member, so the entire bottom surface is grounded or approximately grounded in the same way as the lower end surface of the slide member. Therefore, the carrier according to the present invention can be made to stand on its own in an upright position even more reliably.

In addition, when the entire bottom part of the mounting member is exposed horizontally from the slide member as described above, by raising the vertical part connected to the outer surface of the slide member from this bottom part, this vertical part can be exposed from the slide member. A suction means may be attached to the outer surface of the slide member for sucking the building material placed on the mounting member and keeping the building material immobile.

According to this, when transporting building materials by the transport vehicle according to the present invention, the materials placed on the mounting member due to the suction action of the suction means attached to the vertical part of the mounting member and the outer surface of the slide member. Since the building materials can be made immobile, they can be prevented from falling over during transportation.

Note that these suction means may be a suction cup or a magnet. When the attraction means is a magnet, it is possible to easily attract building materials at least partially made of magnetic material.

In addition, when attaching suction means to the vertical part of the mounting member connected to the outer surface of the slide member and the outer surface of the slide member as described above, in addition to these suction means, rubber, porous elastic material, soft Damage to building materials may be prevented by attaching a buffer member made of synthetic resin or the like to the vertical part of the mounting member and the outer surface of the sliding member, or alternatively, a buffer member made of synthetic resin or the like may be attached to the vertical part of the mounting member and the outer surface of the sliding member. Alternatively, only the above-mentioned buffer member may be attached.

Further, the carrier according to the present invention is provided with a slide member that can freely slide vertically relative to the main wheel and the subwheel as described above, and when the slide member reaches the lowest position. The height position of the lower end surface of the slide member is set to be the same as or lower than the height position of the lower end of the main wheel, and a mounting member on which building materials are placed is placed on the slide member. The mounting member shall have a bottom portion formed with dimensions such that at least a portion thereof is exposed in the horizontal direction from the slide member, and the height position of this bottom portion shall be set to the height of the lower end surface of the slide member. When the position is the same or approximately the same, the building material placed on the mounting member is grasped by the hand of the worker carrying out the work of transporting the building material, and the transport vehicle according to the present invention is held in an upright position by this hand. The transport vehicle according to the present invention may be changed from the tilted state to the tilted state, and may also be caused to travel by a pushing force from the operator's hand.

According to this, the carrier according to the present invention does not need to be provided with a hand contact part for changing the carrier from an upright position to an inclined position and causing it to travel by pushing force from the operator's hand. The conveyance cart according to the present invention can be changed from an upright position to a tilted position by the hand of a worker holding a building material placed on a mounting member, and is caused to travel by a pushing force from this hand. Therefore, the transport vehicle according to the present invention can be made into a compact and simple structure without a hand contact portion.

The above-described transport vehicle according to the present invention can be used to transport any building material, and this building material may be, for example, a hinged door including a fire door, a sliding door of a sliding door device, or a folding door. It may be a folding door of a door device, or it may be a door frame by which an inner doorway is opened and closed, it may be a partition, or it may be a shutter curtain of a shutter device, or a panel for a panel type shutter curtain. Alternatively, it may be a wall material, a floor material, or a ceiling material.

According to the present invention, it is possible to move the vehicle easily and manually, reducing the burden on the worker, and facilitating the work of transporting building materials.

FIG. 1 is a front perspective view showing a manually traveling construction material carrier according to an embodiment of the present invention. FIG. 2 is a rear perspective view of the manually traveling construction material carrier. FIG. 3 is a front view of the manually traveling type conveyance vehicle for building materials. FIG. 4 is a right side view of the manually traveling type conveyance vehicle for building materials. FIG. 5 is a rear view of the manually traveling transport vehicle for building materials. FIG. 6 is a bottom view of the manually traveling transport vehicle for building materials. FIG. 7 is a view similar to FIG. 3 in which the base member and the sub-wheel bracket shown in FIG. 1 etc. are seen through, and the connecting member and the reinforcing member are shown in cross section. FIG. 8 is a diagram similar to FIG. 3, showing a state in which the slide member of the manually traveling transport vehicle for building materials is moved upward to raise the building materials. FIG. 9 is a diagram similar to FIG. 4 in the case of FIG. FIG. 10 is a perspective view illustrating a state in which an operator is running a manual transport vehicle for building materials in order to transport the building materials placed on the mounting member. FIG. 11 is a front view illustrating the state in which the manually-traveled building materials transport vehicle is changed from an upright position to an inclined position when performing the work shown in FIG. 10. Figure 12 shows how, when the building material is a hinged fire door, a worker places the building material on a manual transport vehicle for building materials, which also serves as a lifting device for building materials, by operating an operator attached to the fire door. It is a perspective view which shows the operation|movement for vertically moving the mounting member provided in the door hinge, and inserting the pin of the door frame side slat member into the door side slat member of a door hinge. FIG. 13 is a diagram similar to FIG. 3 illustrating a manually traveling construction material carrier according to another embodiment. FIG. 14 is a diagram similar to FIG. 4 illustrating the manually-traveled building material transport vehicle according to the embodiment of FIG. 13.

EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated based on drawing. FIGS. 1 and 2 show a front perspective view and a rear perspective view of a manually traveling construction material carrier 1 according to an embodiment of the present invention, and FIGS. 3, 4, 5, and 6 show , a front view, a right side view, a rear view, and a bottom view of a transport vehicle 1 according to the present embodiment, which also serves as a lifting device for building materials. As shown in FIGS. 1 and 3, this transport vehicle 1 is equipped with one main wheel 2 and two sub wheels 3 as running wheels. 3 is attached to the sub-wheel bracket 4 so as to be rotatable about the rotation center axis 3A. These sub-wheel brackets 4 are coupled to a base member 5 disposed at a location corresponding to the location of the main wheels 2, and this base member 5 is attached to the transport vehicle as shown in FIG. 1, and an extending portion 5B extending rearward in the front-rear direction, which is the front and back direction of the transport vehicle 1, from both ends of the main portion 5A. It has a U-shape in plan view, and the sub-wheel bracket 4 is coupled to these extending portions 5B. As a result, the transport vehicle 1 according to the present embodiment includes, as running wheels, one main wheel 2 and two sub wheels 3 on both sides of the main wheel 2 in the running direction.

FIG. 7 shows a front view of the transport vehicle 1 with the secondary wheel bracket 4 and the base member 5 seen through. As can be seen from FIG. 7, the main wheel 2 disposed between the two sub wheels 3 is connected to the lower end of an inner cylinder member 6 having a length in the vertical direction via a connecting member 7. As shown in FIG. 6, a rotation center shaft 2A that is rotatably attached to the wheel bracket 8, is constructed on the main wheel bracket 8, and makes the main wheel 2 rotatable, is connected to the secondary wheel 3 as shown in FIG. It is parallel to the rotation center axis 3A. Further, the arrangement position of the main wheel 2 and the arrangement position of each subwheel 3 in the axial direction of the rotation center axis 2A of the main wheel 2 are the same or approximately the same, and furthermore, as can be seen from FIG. 3, The distances from the main wheel 2 to each of the sub wheels 3 in the traveling direction of the main wheel 2 are the same distance or approximately the same distance.

The connecting member 7 shown in FIG. 7 has a bottom portion 7A and two rising portions 7B rising from both ends in the width direction of the transport vehicle 1 on the bottom portion 7A. The lower end of the member 6 is connected via a bracket 7C. Further, as shown in FIG. 6, a reinforcing member 9 is disposed on the outside of the connecting member 7 and is integrated with the connecting member 7. It has a U-shape in plan view, consisting of two flange parts 9A at both ends and a joint part 9B that joins these flange parts 9A and is arranged on the front surface side of the transport vehicle 1. The connecting portion 9B of the reinforcing member 9 is connected to the main portion 5A of the base member 5, so that the inner cylinder member 6 is attached to the base member 5 via the reinforcing member 9 and the connecting member 7.

Further, as shown in FIG. 7, an outer cylinder member 10 is fitted to the outer periphery of the inner cylinder member 6 having a length in the vertical direction so as to be slidable in the vertical direction. An electric motor 11 is attached to the upper part of the outer cylindrical member 10, and as shown in FIG. is connected to via a bracket 13A. The slide member 12 to which the bridge member 13 is coupled also serves as the main body of the transport vehicle 1 according to the present embodiment, and as shown in FIG. 6, the slide member 12 has a lip in a plan view. Since this slide member 12 has a channel shape, it has a web portion 12A on the back side of the transport vehicle 1, flange portions 12B on both ends of the transport vehicle 1 in the width direction of the web portion 12A, and these flange portions. 12B and a lip portion 12C formed at the tip.

As a result, as shown in FIG. 7, the main wheel 2, the inner cylinder member 6, the main wheel bracket 8, the outer cylinder member 10, etc. are housed in the internal space S of the slide member 12. The electric motor 11 attached to the slide member 12 via the bridge member 13 is disposed on the surface side of the building material lifting device 1 with respect to the outer cylinder member 10, so that a part of the electric motor 11 , as shown in FIGS. 4 and 6, is exposed to the outside of the slide member 12 from the internal space S. Therefore, work such as maintenance work on the electric motor 11 can be easily performed.

As shown in FIG. 6, between the slide member 12 and the reinforcing member 9, there is provided a structure for allowing the slide member 12 to slide vertically relative to the subwheel 3, the base member 5, the reinforcing member 9, etc. A slide rail 14 serving as a guide means is disposed, and this slide rail 14 includes a first rail member 14A attached to the flange portion 12B of the slide member 12, and a second rail member 14A attached to the flange portion 9A of the reinforcing member 9. It consists of a rail member 14B, a ball 14C rotatably interposed between the first rail member 14A and the second rail member 14B, and the like.

As shown in FIG. 4, a drive gear 15 is attached to the drive shaft 11A of the electric motor 11 facing upward. is engaged with a driven gear 16 which is disposed immovably and rotatably, and this driven gear 16 is coupled to the upper end of a male threaded rod member 17 which is rotatably inserted into the outer cylinder member 10. ing. The male threaded rod member 17 has a length that reaches the lower part of the inner cylinder member 6 which is inserted upward into the outer cylinder member 10. A female threaded member 18 is housed in a fixed position, and a male threaded rod member 17 is screwed into the female threaded member 18.

Therefore, when the drive shaft 11A of the electric motor 11 rotates in the forward direction, this forward rotation is transmitted to the male threaded rod member 17 via the drive gear 15 and the driven gear 16, so that the female threaded member 18 is moved to its height position. The outer cylinder member 10 moves upward relative to the inner cylinder member 6 which is fixedly disposed, and as a result, the electric motor 11 coupled to the outer cylinder member 10 and the bridge member 13 are connected to the outer cylinder member 10. The slide member 12 coupled to the base also moves upward, and these upward movements are caused by the main wheel 2 attached to the lower end of the inner cylinder member 6 via the connecting member 7 and the main wheel bracket 8, and the base. This is performed for the member 5 and the subwheel 3 attached to the base member 5 via the subwheel bracket 4. A state in which such an upward movement is performed is shown in FIGS. 8 and 9.

Further, when the drive shaft 11A of the electric motor 11 rotates in the reverse direction, this reverse rotation is transmitted to the male threaded rod member 17 in the same manner as described above, and the outer cylinder member 10 moves downward, so that the electric motor 11 and The slide member 12 also moves downward, and these downward movements are performed relative to the main wheel 2 and the subwheel 3.

As shown in FIG. 3, a cover member 20 is attached to the upper surface of the slide member 12, and the electric motor 11 is controlled in the internal space above the slide member 12 that is closed by the cover member 20. A control device 21 and a battery 22 that supplies power to the electric motor 11 are housed therein, and the cover member 20 is provided with a power switch 23 and a charging terminal 24.

As shown in FIG. 2, on the back side of the slide member 12, which also serves as the main body of the carrier 1 according to the present embodiment, there is a mounting member 25 for placing building materials to be transported by the carrier 1. are combined. As described above, this mounting member 25 disposed on the slide member 12, which is vertically slidable with respect to the main wheel 2 and the subwheel 3, has a horizontal bottom portion 25A and a horizontal bottom portion 25A. It consists of a vertical part 25B rising from the end on the slide member 12 side of the bottom part 25A, and an extending part 25C extending upward in an inclined manner from the end of the bottom part 25A on the opposite side to the slide member 12 side. A plate-shaped magnet 26 is attached to the vertical portion 25B and serves as an attraction means for attracting building materials whose surface is made of a magnetic material such as steel. A plate-shaped magnet 27 serving as an attraction means is attached above the member 25.

As shown in FIG. 3, when the transport vehicle 1 according to the present embodiment is in an upright position, the height position of the lower end of the main wheel 2 and the lower end height of the two sub wheels 3 are different. The positions of the wheels are not the same, and the height position of the lower end of each subwheel 3 is higher by the vertical dimension H than the height position of the lower end of the main wheel 2. Therefore, as shown in FIG. 11, the conveyance vehicle 1 changes from an upright position to a tilted position, thereby disposing the main wheel 2 and the two sub wheels 3 on the tilted side. One of the secondary wheels 3 comes into contact with a running surface 28 such as a floor surface, and these main wheels 2 and the secondary wheels 3 can be made to run together as running wheels.

Further, as shown in FIG. 3, the transport vehicle 1 is in an upright position in which only the main wheels 2 are in contact with the running surface 28 and the two secondary wheels 3 are not in contact with the running surface 28. When the lower end surface 12D of the slide member 12 is not in contact with the running surface 28, the carrier 1 is rotatable about the vertical line N passing through the center of the main wheels 2. . Therefore, at this time, by rotating the transport vehicle 1 around the vertical line N, the transport vehicle 1 can be directed in any direction.

Furthermore, the slide member 12 normally reaches the lowest position due to the operation of a limit switch (not shown) that stops the drive of the electric motor 11, and when the slide member 12 reaches the lowest position, the slide member 12 As shown in FIG. 3, the height position of the lower end surface 12D of the main wheel 2 is the same as the height position of the lower end of the main wheel 2, or is lower than this height position. Therefore, even if the height position of the lower end of each of the sub wheels 3 is higher than the height position of the lower end of the main wheel 2 as described above, the transport vehicle 1 under normal conditions is located below the slide member 12. When the end surface 12D comes into contact with the running surface 28, it becomes self-supporting, and by gripping the gripping member 29 provided at the upper end of the slide member 12, the carriage 1 can be transported to a storage location, etc. It can be stored in an independent state.

In addition, in the transport vehicle 1 according to the present embodiment, as shown in FIG. They are almost the same. Therefore, when the transport vehicle 1 is made to stand on its own by the lower end surface 12D of the slide member 12, the lower end surface 12D of the slide member 12 also comes into contact with the running surface 28, or is substantially grounded, thereby making the transport vehicle 1 even more self-supporting. It can be done effectively.

Furthermore, since the mounting member 25 is coupled to the back surface which is the outer surface of the slide member 12, the entire bottom surface portion 25A of the mounting member 25 is exposed from the slide member 12 in the horizontal direction. Therefore, the carrier vehicle 1 can be made to stand on its own even more effectively by utilizing the entire bottom surface portion 25A.

In addition, the mounting member 25 can be attached to and removed from the slide member 12 with screws, etc., and various mounting members having different dimensions in the width direction and front-back direction of the transport vehicle 1 are prepared in advance. Alternatively, the mounting member attached to the slide member 12 may be replaced depending on the size, thickness, etc. of the building material to be transported by the transport vehicle 1.

The building material transported by the transport vehicle 1 according to this embodiment is a fire door 30 that is a hinged door of an opening device, and this fire door 30 is placed in an opening 31A of a wall 31 shown in FIG. By being rotatably attached to the door frame 32 with a door hinge 33, the doorway inside the door frame 32 is opened and closed. The door hinge 33 is fixed to a door frame side slat member 33A coupled to the door frame 32, a hinged door side slat member 33B coupled to the fire door 30, and either one of these slats 33A, 33B. In FIG. 12, this pin 33C is provided upward on the door frame side blade member 33A.
S

Further, the electric motor 11 of the transport vehicle 1 according to the present embodiment is driven and controlled by the control device 21 shown in FIG. 3 to which signals from the operating device 35 shown in FIGS. 10 and 12 are input. In this embodiment, the signal from the controller 35 is input to the control device 21 as a wireless signal. Note that the operating device 35 and the transport vehicle 1 may be connected by an electric cable, and the signal from the operating device 35 may be input to the control device 21 through this electric cable.

The operating device 35 according to this embodiment has an operating section 35A such as a button to be operated on the front surface, and a suction means for adhering the operating device 35 to the fire door 30 on the back surface. In this embodiment, this attraction means is a magnet 36 that magnetically attracts the surface of the fire door 30, which is made entirely or substantially entirely of steel, which is a magnetic material.

When transporting the fire door 30 to the location where the door frame 32 is placed using the transport vehicle 1 according to the present embodiment, first the fire door 30 is placed on the bottom portion 25A of the mounting member 25, and the fire door 30 is By attracting the fire door 30 with the plate-shaped magnets 26 and 27 serving as the above-mentioned attracting means, the fire door 30 is kept upright and immovable relative to the mounting member 25. When performing this work for placing the fire door 30 on the placing member 25, the electric motor 11 is driven to lower the slide member 12 to the lowest position by operating the operating part 35A of the operating device 35. Therefore, the transport vehicle 1 according to the present embodiment may be placed in an independent upright position, thereby making it possible to easily carry out this work.

Also, before or after performing this operation, as shown in FIG. Attach the container 35. The mounting position of the operating device 35 on the fire door 30 is set close to one of the left and right ends of the fire door 30 held by the left and right hands 38, 39 of the operator 37.

Next, the operator 37 drives the electric motor 11 to move the slide member 12 upward by operating the operating section 35A of the operating device 35, and this upward movement causes the slide member 12 to move upward as shown in FIGS. 8 and 9. Then, the mounting member 25 also moves upward, and the fire door 30 rises. As a result, the operator's 37 hands 38 and 39 holding both left and right ends of the fire door 30 bring the carrier 1 into an upright position with only the main wheels 2 in contact with the running surface 28. After that, the worker 37 pushes and pulls the transport vehicle 1 along the vertical line N passing through the center of the main wheels 2 shown in FIG. , and thereby the direction of this transport vehicle 1 is set as the direction in which the transport vehicle 1 should be run. Next, as shown in FIG. 10, the worker 37 uses both hands 38 and 39 to tilt the fire door 30 toward the side on which the transport vehicle 1 is to be moved, and as shown in FIG. The carriage 1 is changed from an upright position to an inclined position in which it is tilted toward the side on which the carriage 1 is run. As a result, the main wheel 2 and the subwheel 3, which is disposed on the side on which the transport vehicle 1 travels among the two subwheels 3 disposed on both sides in the traveling direction of the main wheel 2, are aligned on the running surface 28. will come into contact with.

After this, the worker 37 uses the hand on the opposite side of both hands 38 and 39 from the side on which the transport vehicle 1 is made to travel (in FIG. By applying a pushing force to the fire door 30 with the right hand 38), the transport vehicle 1 is caused to run using the main wheels 2 and one subwheel 3. In this way, when the transport vehicle 1 is run on the running surface 28 by the main wheels 2 and one subwheel 3 serving as running wheels, the transport vehicle 1 is moved from an upright position. Since the tilted posture state is changed to the front side, which is the direction, the entire center of gravity of the fire door 30 has moved to the front side, which is the direction in which the transport vehicle 1 is traveling. Therefore, due to this shift of the center of gravity, the worker 37 can easily move the transport vehicle 1 manually by pushing the fire door 30 with one of both hands 38 and 39. The load on the operator is reduced, and the work of transporting the fire door 30 can be carried out easily.

Note that, unlike the above-mentioned work, the worker 37 changes the transport vehicle 1 from an upright position to an inclined position using both hands 38 and 39 holding both left and right ends of the fire door 30 while the transport vehicle 1 is running. This is done by tilting the transport vehicle 1 to the rear side opposite to the direction in which the transport vehicle 1 is moved, and then the worker 37 applies a pushing force to the fire door 30 with the hand on the opposite side to the side in which the transport vehicle 1 is run. Accordingly, the transport vehicle 1 may be made to travel. According to this, of the hands 38 and 39 of the worker 37, the hand that pushes the fire door 30 generates a component in the direction of lifting the fire door 30 and pushes the fire door 30 diagonally upward. Accordingly, the worker 37 can move the transport vehicle 1 easily and manually, thereby reducing the burden on the worker 37 and easily carrying out the work of transporting the fire door 30.

After the transport vehicle 1 transports the fire door 30 to the location where the door frame 32 is installed in FIG. 39, the carriage 1 is returned from the inclined position to the upright position. Next, the worker 37 uses the finger 38A of the hand (the right hand 38 in FIG. 12), which is located near the operator 35 attached to the surface of the fire door 30 with a magnet 36, of both hands 38 and 39 to operate the operator. 35, the fire door 30 is moved up and down by vertical movement of the mounting member 25 driven by the electric motor 11, and thereby the height position of the fire door 30 is changed to the height position of the fire door 30. Work is performed to adjust the attached hinged door side slat member 33B to a higher position than the pin 33C of the door frame side slat member 33A attached to the door frame 32.

Thereafter, the operator 37 gradually moves the mounting member 25 downward by driving the electric motor 11 by operating the operating part 35A of the operating device 35 with the above-mentioned finger 38A, and gradually moves the fire door 30 as well. This allows the pin 33C of the door frame side slat member 33A to be inserted into the pin insertion hole provided in the hinged door side slat member 33B, thereby inserting this pin 33C into the inside of the hinged door side slat member 33B. The fire door 30 is installed in the door frame 32 so as to be openable and closable around the door hinge 33.

Next, the operator 37 operates the operating section 35A of the operating device 35 with the finger 38A to further move the mounting member 25 downward by driving the electric motor 11, thereby causing the mounting member 25 to move from the bottom surface 25A. The fire door 30 is removed. Further, the operator 37 manually moves the carrier 1 to a predetermined location away from the installation location of the fire door 30. The operator 37 also removes the operating device 35 that was attached to the surface of the fire door 30 with a magnet 36, thereby completing all the operations using the transport vehicle 1.

According to the transport vehicle 1 according to the present embodiment described above, since the transport vehicle 1 is equipped with running wheels consisting of a main wheel 2 and two sub-wheels 3, the fire door 30, which is a building material, is The fire door 30 can be transported by traveling to the location where it is to be installed, and as described above, the rotation center axis 2A of the main wheel 2 and the rotation center axis 3A of the secondary wheel 3 are parallel to each other, so that the fire door 30 can be moved upright. In the posture state, the height position of the lower ends of the two sub wheels 3 is higher than the height position of the lower ends of the main wheels 2. Therefore, by manually changing from the upright posture state to the tilted posture state, the main wheels 2 and one of the two subwheels 3 come into contact with the running surface 28. Therefore, when the fire door 30 is manually changed from an upright position to an inclined position and then manually moved, the inclination direction of the transport vehicle 1 is changed as described above. 1 is set to the front side, which is the running direction, the center of gravity of the fire door 30 is moved to the front side, which is the running direction, and the center of gravity of the fire door 30 is moved to the front side, which is the running direction, so that the transport vehicle 1 can be moved easily and manually. In addition, when the direction of inclination of the transport vehicle 1 is set to the rear side opposite to the direction in which the transport vehicle 1 travels, the hand that pushes the fire door 30 in order to move the transport vehicle 1 must be pressed against the fire door 30. Since a component in the lifting direction is generated and the fire door 30 is pushed diagonally upward, the transport vehicle 1 can be moved manually and easily. The load is reduced and the work of transporting the fire door 30 can be carried out easily.

In addition, since the arrangement position of the main wheel 2 and the arrangement position of the subwheel 3 in the axial direction of the rotation center axis 2A of the main wheel 2 are the same position or approximately the same position, the transport vehicle 1 can be manually moved to the upright position. The manual traveling operation of the transport vehicle 1 is performed by changing the posture from 1 to the tilted state and bringing the main wheel 2 and one of the two sub wheels 3 into contact with the running surface 28. This can be easily done without tilting the entire body in the axial direction of the rotation center axis 2A of the main wheel 2.

In addition, since the number of secondary wheels 3 is two, which are disposed on both sides of the traveling direction of the main wheels 2, which side of the traveling direction of the main wheels 2 should the transport vehicle 1 travel to? Even if the vehicle 1 is in an upright position, it can be manually changed from an upright position to a tilted position, and the main wheel 2 and one of the two sub wheels 3 are brought into contact with the running surface 28. Therefore, the main wheels 2 can easily transport the fire door 30 to any one of both sides in the traveling direction.

In addition, since the distances from the main wheel 2 to each of the sub wheels 3 in the traveling direction of the main wheel 2 are the same distance or approximately the same distance, one of the main wheel 2 and the two sub wheels 3 is When the transport vehicle 1 is run with the secondary wheels 3 in contact with the running surface 28, the main wheels 2 perform a posture change operation to manually change the transport vehicle 1 from an upright position to an inclined position. This can be done with the same inclination angle or substantially the same inclination angle on both sides in the traveling direction, and therefore this work can be easily performed.

Furthermore, in the upright position where the lower end surface 12D of the slide member 12 is not in contact with the running surface 28 and only the main wheels 2 are in contact with the running surface 28, the carrier 1 is able to touch the center of the main wheels 2. Since it is freely rotatable around the vertical line N that it passes through, by rotating around this vertical line N, the direction of the transport vehicle 1 is changed to the direction in which the transport vehicle 1 is run. You can easily carry out the work to do so.

In addition, there is work to change the orientation of the transport vehicle 1 to the direction in which the transport vehicle 1 is traveling, work to change the upright position of the transport vehicle 1 to an inclined position, and a fire prevention door. 30, the operator 37 moves the right and left ends of the fire door 30 placed on the mounting member 25. Since the work is carried out by gripping with the hands 38 and 39, there is no need to provide a hand contact part on the transport vehicle 1 for the worker 37 to contact with the hands 38 and 39 to perform these operations. can be made into a compact and simple structure that does not include a hand-contact part.

Further, the mounting member 25 on which the fire door 30 is mounted is provided with a vertical portion 25B that rises from the bottom surface portion 25A and is coupled to the back surface that is the outer surface of the slide member 12. At a location above the vertical portion 25B on the back surface of the slide member 12, there is a suction means for adsorbing the fire door 30 and keeping the fire door 30 in an immovable upright state with respect to the mounting member 25. Since the magnets 26 and 27 are provided, when the fire door 30 is transported by the transport vehicle 1 or when the fire door 30 is moved up and down by the vertical movement of the mounting member 25, the fire prevention It is possible to prevent the door 30 from falling over, and to ensure that the fire door 30 is immovable, so that these operations can be carried out more reliably.

Furthermore, the electric motor 11 disposed on the carrier 1 for vertically moving the mounting member 25 is driven and controlled by a control device 21 into which signals from an operating device 35 are input. The operator 37 can attach the operating device 35 to the fire door 30 using the magnet 36 and remove it from the fire door 30 using the magnet 36, which serves as an adsorption means. By operating the operating section 35A of the operating device 35 with the finger 38A of one hand 38, the fire door 30 can be moved up and down by vertical movement of the mounting member 25.

As shown in FIG. 12, this work can be performed by the worker 37 standing near the fire door 30. 35, the placement member 25 can be gradually lowered while easily checking the height position of the fire door 30 at that time. As a result, as described above, by inserting the pin 33C of the door frame side slat member 33A into the pin insertion hole provided in the hinged door side slat member 33B, the door hinge 33 can be attached to the door frame 32 by inserting the pin 33C of the door frame side slat member 33A. The work to install it in the center so that it can be opened and closed can be done easily and in a short time.

Furthermore, since the operating device 35 of this embodiment can be attached to any location on the surface of the fire door 30 using a magnet 36, the locations on the fire door 30 to which the operating device 35 is attached are shown in FIG. As shown in FIG. Since the parts 38 and 39 can be grasped, it is also possible to operate the operating part 35A of the operating device 35 with the fingers 38A of one hand 38 while grasping both the left and right ends of the fire door 30 with both hands 38 and 39. As a result, the fire door 30 can be moved up and down by the vertical movement of the mounting member 25 while the operator 37 can use both hands 38 and 39 to more effectively prevent the fire door 30 from falling over.

Further, since the operating section 35A of the operating device 35 according to the present embodiment is arranged on the front surface of the operating device 35, and the magnet 36 is provided on the back surface of the operating device 35, the operator 37 can The operation section 35A can be easily operated without being affected by the above.

Furthermore, by running the transport vehicle 1, the fire door 30 is transported to the location where the door frame 32 is arranged, and at this location, the fire door is moved up and down by the operation of the operating device 35. 30 and gradually lower the fire door 30 from a high position, insert the pin 33C of the door frame side slat member 33A into the pin insertion hole provided in the hinged door side slat member 33B of the door hinge 33. Therefore, the worker 37 can perform the work of installing the fire door 30 in the door frame 32 so as to be able to open and close freely around the door hinge 33, using at least one hand 38 of both hands 38 and 39. The operator 37 can easily perform these operations as a series of operations with guaranteed continuity.

In the present embodiment, the pin 33C of the door hinge 33 is provided upward on the door frame side slat member 33A, but this pin 33C is provided downward on the swing door side slat member 33B. Also, the work for installing the fire door 30 in the door frame 32 so as to be openable and closable around the door hinge 33 can be carried out easily and in a short time in the same manner as described above.

FIG. 13 is a front view of a transport vehicle 101 according to another embodiment, and FIG. 14 is a right side view of this transport vehicle 101. As shown in FIG. 13, the slide member 112, which is the main body of the transport vehicle 101, has a larger width in the left and right direction than the slide member 12 of the transport vehicle 1 of the embodiment described above. Therefore, the entire electric motor 111 and two outer cylindrical members 110 arranged on both left and right sides of the electric motor 111 are housed in the internal space S of the slide member 112. It is fitted to the outer periphery of an inner cylinder member 106 provided for each outer cylinder member 110 so as to be slidable in the vertical direction. Further, a driven gear 116 that is rotatably disposed at an immovable height inside the upper part of each outer cylinder member 110 meshes with the drive gear 115 attached to the drive shaft 111A of the electric motor 111. , these driven gears 116 are coupled to the upper ends of male threaded rod members 117 that are rotatably inserted into the respective outer cylinder members 110. These male threaded rod members 117, which have a length that reaches the lower part of the interior of the inner cylinder member 106, are screwed into a female thread member 118 that is fixedly disposed inside the inner cylinder member 106 so that the height position thereof is immovable. It has been inserted.

Therefore, also in the transport vehicle 101 according to this embodiment, the forward and reverse rotation of the drive shaft 111A of the electric motor 111 is transmitted to the male threaded rod member 117 via the drive gear 115 and the driven gear 116. Each outer cylinder member 110 moves up and down with respect to 106, and as a result, the electric motor 111 coupled to the outer cylinder member 110, the slide member 112 coupled to the outer cylinder member 110, and the slide member 112 The coupled mounting member 125 (see FIG. 14) moves up and down with respect to the main wheel 102 and the two sub wheels 103.

In the transport vehicle 101 according to this embodiment, the electric motor 111 is entirely housed in the internal space S of the slide member 112 which is the main body of the transport vehicle 101, as described above. It can protect against unexpected external forces. Further, the slide member 112 of this embodiment is also in the shape of a channel with a lip in plan view, similarly to the slide member 12 of the previous embodiment shown in FIG. , has an opening that communicates the internal space S with the external space, and therefore maintenance work and the like on the electric motor 111 can be easily performed through this opening.

INDUSTRIAL APPLICABILITY The present invention can be used, for example, to transport building materials such as hinged doors including fire doors to a construction material installation site by manual travel.

1,101 Manually traveling conveyor for building materials 2,102 Main wheel 2A Rotation center axis of main wheel 3,103 Subwheel 3A Rotation center axis of subwheel 12,112 Slide member 12D Lower end surface of slide member 25,125 Placement Component 25A Bottom part of the mounting member 25B Vertical part of the mounting member 26 Magnet which is an adsorption means attached to the vertical part of the arrangement member 27 Magnet which is an adsorption means attached to the outer surface of the slide member 28 Running surface 30 Building material Fire door that is

Claims (13)

In a manual transport vehicle for construction materials, which is equipped with running wheels for manually traveling to transport construction materials,
The running wheels include one main wheel and one subwheel disposed on at least one side of the main wheel in the running direction, and the rotation center axis of the main wheel and The rotational center axis of the secondary wheel is parallel to the center axis of rotation, and the height position of the lower end of the secondary wheel is higher than the height position of the lower end of the main wheel in the upright state. By changing from the upright position to the inclined position, both the main wheels and the secondary wheels are in contact with the running surface, and the main wheel and the secondary wheel are manually driven,
The arrangement position of the main wheel and the arrangement position of the subwheel in the axial direction of the rotation center axis of the main wheel are the same position or substantially the same position ,
In the upright position, the manually-traveled construction materials transport trolley is rotatable about a vertical line passing through the center of the main wheels . 2. The manually-operated transport vehicle for building materials according to claim 1 , further comprising a mounting member on which the building material is placed, and the construction material is placed on the mounting member by the hand of a worker who carries out the work of transporting the building material. The hand-operated conveyance trolley for building materials is characterized in that the placed building materials are grasped and changed from the upright posture to the tilted posture by the hands, and are moved by a pushing force from the hands. In a manual transport vehicle for construction materials, which is equipped with running wheels for manually traveling to transport construction materials,
The running wheels include one main wheel and one subwheel disposed on at least one side of the main wheel in the running direction, and the rotation center axis of the main wheel and The rotational center axis of the secondary wheel is parallel to the center axis of rotation, and the height position of the lower end of the secondary wheel is higher than the height position of the lower end of the main wheel in the upright state. By changing from the upright position to the inclined position, both the main wheels and the secondary wheels are in contact with the running surface, and the main wheel and the secondary wheel are manually driven,
A slide member is provided that can freely slide vertically relative to the main wheel and the subwheel, and the height position of the lower end surface of the slide member when the slide member reaches the lowest position is , the height position is the same as or lower than the height position of the lower end of the main wheel, and the lower end surface of the slide member is in contact with the ground, making it possible to stand on its own in an upright position;
A placing member on which the building material is placed is disposed on the sliding member, and the placing member has a bottom portion having a size such that at least a portion thereof is exposed in a horizontal direction from the sliding member. 2. A manually traveling type conveyance trolley for building materials, characterized in that the height position of the bottom surface portion is the same or approximately the same as the height position of the lower end surface of the slide member. 4. The manually traveling construction material carrier according to claim 3 , wherein the building material is mounted on the mounting member, and an operating device that is operated to slide the slide member in the vertical direction is attached to the building material. A manual transport vehicle for building materials featuring: 5. The manually traveling type conveyor vehicle for building materials according to claim 4 , wherein the operating device is attached to the building material by suction means. 6. The manually traveling construction materials transport vehicle according to claim 5 , wherein the suction means is a magnet. 7. The manually traveling construction material transport vehicle according to claim 3 , wherein the main wheels are in contact with the running surface, the secondary wheels are not in contact with the running surface, and the lower part of the slide member is in contact with the running surface. In the upright position in which the end face is not in contact with the running surface, the manually running conveyor trolley for building materials is rotatable about a vertical line passing through the center of the main wheels. 8. The manually traveling construction material carrier according to claim 3 , wherein the mounting member is attached to the outer surface of the slide member, and the entire bottom portion is exposed from the slide member in a horizontal direction. A hand-operated transport vehicle for building materials, which is characterized by: 9. The manually traveling construction materials transport vehicle according to claim 8 , wherein a vertical portion connected to the outer surface of the slide member rises from the bottom portion, and the vertical portion and the outer surface of the slide member are connected to each other. 2. A hand-operated transport vehicle for building materials, characterized in that a suction means for adsorbing the building materials placed on the mounting member and making the building materials immobile is attached thereto. 10. The manually traveling type transport vehicle for building materials according to claim 9 , wherein the adsorption means attached to the vertical portion and the outer surface of the slide member are magnets. Transport trolley. In the manually traveling construction material transport vehicle according to any one of claims 3 to 10 , the building material placed on the mounting member is held in the hand of a worker who carries out the work of transporting the building material, and the building material is By hand, the main wheel is moved from the upright position in which the main wheel is in contact with the running surface, the secondary wheel is not in contact with the running surface, and the lower end surface of the slide member is not in contact with the running surface. 1. A hand-operated conveyance trolley for building materials, characterized in that the vehicle is changed to the inclined posture in which both the and the secondary wheels are in contact with the traveling surface, and the vehicle is driven by a pushing force from the hand. 12. The manually traveling construction material transport vehicle according to claim 1 , wherein the number of the secondary wheels is two, which are disposed on both sides of the main wheel in the traveling direction. A manual transport vehicle for building materials. 13. The manually-travelable transport vehicle for building materials according to claim 12 , wherein the distances from the main wheel to each of the sub-wheels in the traveling direction of the main wheels are the same distance or substantially the same distance. A manual transport vehicle for building materials.

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