JP2004352132A - Carriage truck - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a carriage truck in which, in stacking a carriage truck on another carriage truck, the carriage trucks stuck at an upper position is turned 180 degrees horizontally after the carriage truck stuck at an upper position and the carriage truck stuck at a lower position are arranged in the same direction, so that the casters of the carriage truck positioned at an upper position can be inserted into the holes made in the deck plate of the carriage truck positioned at a lower position. <P>SOLUTION: The casters 2 are fixed to the four rear face corner sections of the truck body 1, and hole sections 3 allowing the casters to enter are formed in the truck body near the casters and in positions nearer to the center than the casters along one of the opposite sides of the truck body. In stacking the carriage trucks, the casters positioned at one side of the carriage truck positioned at an upper position are inserted into the holes positioned at one side of the carriage truck positioned at a lower position, while the casters positioned at the other side of the carriage truck positioned at an upper position are positioned outside the other side of the carriage truck positioned at a lower position. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a transport trolley to which casters for mounting and transporting luggage, containers and the like are mounted.
[0002]
[Prior art]
Conventionally, casters are attached to the back of a deck plate that has a mounting surface on which luggage, containers, etc. are placed, and when the carts are stacked on the upper surface of the deck plate, the casters of the transport cart located above are 2. Description of the Related Art A transport trolley in which a fitting recess is formed is known (for example, Japanese Patent Application Laid-Open No. 8-133090).
[0003]
When stacking empty carriers in the conventional carrier described above, the casters of the upper carrier are fitted into the recesses formed on the upper surface of the lower deck plate. Therefore, the stacking height can be reduced only by the amount of fitting of the caster into the concave portion, in other words, only by the depth of the concave portion. In addition, a large space is required, and since the casters are merely fitted into the recesses, there is a problem that the stacking is unstable.
[0004]
In order to solve the above-mentioned problems of the conventional transport cart, the present application discloses a prior application of Japanese Patent Application No. 9-362217 (Japanese Patent Application Laid-Open No. 11-171223) in which the transport carts are vertically stacked. In this case, after arranging the upper carrier and the lower carrier in the same direction, the upper carrier is rotated by 180 degrees on a horizontal plane, so that the upper carrier is rotated. A transport trolley has been proposed in which the casters of the trolley are inserted into holes formed in the deck plate of the transport trolley located below.
[0005]
[Problems to be solved by the invention]
The carrier truck proposed in the earlier application of the present applicant mentioned above, when stacking carrier trucks, first, the carrier truck located above and the carrier truck located below are oriented in the same direction. It is necessary to rotate the carrier on the horizontal plane by 180 degrees on the horizontal plane after the arrangement, and there is a problem that the workability of stacking the carriers is poor.
[0006]
Further, in the transport cart proposed in the earlier application of the applicant of the present invention, two casters are attached at predetermined intervals along the opposite short sides of the deck plate. The two casters attached to the deck plate along one of the opposite short sides are compared to the two casters attached to the deck plate along the other short side. However, there is a problem that the traveling stability of the transport trolley is poor because it is attached to a position away from the short side.
[0007]
An object of the present invention is to solve the above-described problems of the transport trolley proposed in the earlier application by the present applicant.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the present invention has casters attached to the four back corners of the bogie main body, near the casters, and along one opposite side of the bogie main body, The bogie body located closer to the center than the casters has a hole into which the casters can be inserted, and when stacking the transport carts, the casters located on one side of the transport cart located above , While being inserted into the hole located on one side of the lower carrier, and the caster located on the other side of the upper carrier on the other side of the lower carrier. It is arranged outside the side.
[0009]
【Example】
Hereinafter, an example of the present invention will be described. However, the present invention is not limited to the example without departing from the spirit of the present invention.
[0010]
Reference numeral 1 denotes a carriage main body having a rectangular planar shape, which constitutes a transport carriage V, and casters 2 are attached to the back surfaces of four corners of the carriage main body 1, respectively. In this embodiment, the caster 2 is a pedestal 2d in which a bifurcated support frame 2c for supporting both ends of a support shaft 2b of a wheel 2a is attached to a back surface of the bogie main body 1 by a suitable fixing tool such as a bolt. It is configured as a so-called swivel caster that is rotatable with respect to. Each caster 2 is attached to the same position on the back surface of the four corners of the bogie main body 1. In other words, the pedestal 2d of each caster 2 is attached so that the distance from the long side 1a and the distance from the short side 1b of the bogie body 1 are the same.
[0011]
Reference numeral 3 denotes a hole formed so as to penetrate the bogie main body 1 and into which the caster 2 can be inserted. The hole 3 is located near the caster 2 attached to the back surface of the bogie main body 1 and in the bogie main body. Along the long side 1 a of the vehicle body 1, it is formed closer to the center of the bogie main body 1 than the caster 2. The hole 3 is formed in such a size that both the wheel 2a and the support frame 2c can be inserted regardless of the position of the support frame 2c rotatable with respect to the pedestal 2d.
[0012]
The casters 2 attached to the back surfaces of the four corners of the bogie main body 1 are positioned with respect to a center line La along the long side 1a of the bogie main body 1 and a center line Lb along the short side 1b of the bogie main body 1. Each of the holes 3 is arranged line-symmetrically, and along the long side 1 a of the bogie main body 1, the hole 3 formed near the center of the bogie main body 1 from the caster 2 is also formed on the long side 1 a of the bogie main body 1. The center line La and the center line Lb along the short side 1b of the bogie main body 1 are arranged symmetrically with respect to each other.
[0013]
As shown in FIG. 4, when stacking the transport vehicles V, the transport vehicle Va located above and the transport vehicle Vb located below are centered along the long side 1 a of the vehicle body 1. The lines La and the center lines Lb along the short sides 1b are respectively arranged so as to substantially coincide with each other in plan view, and then the transport trolley Va located above is placed along the long side 1a of the trolley body 1. By moving, the caster 2 located on one short side 1b side of the transport truck Va located above is placed above the hole 3 located on the one short side 1b side of the transport truck Vb located below. I do. Thereafter, the upper transport truck Va is lowered, and the caster 2 located on one short side 1b side of the upper transport truck Va is moved to one shorter side 1b side of the lower transport truck Vb. The caster 2 is inserted into the hole 3 located on the other side and the caster 2 located on the other short side 1b side of the transport truck Va located above is placed outside the other short side 1b of the transport truck Vb located below. By doing so, the transport vehicle Va located above and the transport vehicle located below are placed so that the vehicle body 1 of the transport vehicle Va located above is placed on the vehicle body 1 of the transport vehicle Vb located below. And Vb.
[0014]
As described above, the transport trolley Va positioned above is moved along the long side 1a of the trolley body 1 so that the transport trolleys V are stacked one on another. The workability of the stacking operation is improved as compared with the conventional stacking operation of the transport vehicles that are rotated 180 degrees on the horizontal plane with respect to the transport vehicle positioned below.
[0015]
At the center of the bogie main body 1, an opening 4 having a substantially square planar shape is formed, and one of the opposed vertical walls 4a forming the opening 4 is parallel to the long side 1a of the bogie main body 1. The other vertical wall 4b forming the opening 4 is also bridged by the plurality of ribs 5b parallel to the short side 1b of the bogie main body 1. The rib 5a parallel to the long side 1a of the bogie main body 1 and the rib 5b parallel to the short side 1b of the bogie main body 1 are configured to intersect with each other. The plurality of ribs 5a parallel to the side 1a and the plurality of ribs 5b parallel to the short side 1b of the bogie main body 1 form a plurality of partition spaces 6 each having a square planar shape. In this embodiment, four ribs 5a parallel to the long side 1a of the bogie main body 1 and four ribs 5b parallel to the short side 1b of the bogie main body 1 make the opening 4 25 (5 × 5). ) The room is partitioned into compartments 6.
[0016]
A compartment 6 (hereinafter referred to as a long-side central compartment and denoted by a reference numeral 6 ′) located at a central portion of the bogie main body 1 on the long side 1 a side includes a long-side central compartment 6. The bridge ribs 7a that are parallel to the long sides 1a of the bogie main body 1 are formed while bridging the opposing ribs 5b constituting the '. The upper end of the bridging rib 7a is configured to be located below the upper surface of the bogie main body 1, and the lower portion 7a1 of the bridging rib 7a is configured to protrude downward from the back surface of the bogie main body 1, A lower portion 7a1 of the bridging rib 7a projecting downward from the back surface of the bogie main body 1 is formed in an inverted trapezoidal shape. In this embodiment, two bridging ribs 7a are formed, but one or three or more ribs can be formed. In the long side central compartment 6 ′, a rib 5 a constituting the long side central compartment 6 ′ and a vertical wall 4 b forming the opening 4 are bridged, and the short side 1 b of the bogie main body 1 is bridged. Is formed, the upper end of the connecting rib 7b substantially coincides with the upper end of the bridging rib 7a located below the upper surface of the bogie main body 1, and the lower part 7b1 of the connecting rib 7b is The lower end of the lower part 7b1 of the connecting rib 7b is substantially coincident with the lower end of the lower part 7a1 of the bridging rib 7a projecting downward from the lower surface of the bogie main body 1. I have.
[0017]
The above-described inverted trapezoidal lower portion 7a1 of the bridging rib 7a and the lower portion 7b1 of the connecting rib 7b form a fitting member F projecting downward from the lower surface of the bogie main body 1. The width of the fitting member F along the short side 1b of the bogie main body 1 is formed to be slightly smaller than the width of the partitioned space 6 along the short side 1b of the bogie main body 1. A fitting space 8 is formed above the long-side central compartment 6 'where the bridging rib 7a and the connecting rib 7b are formed. The fitting space 8 is formed by opposing ribs 5b forming the long side central compartment 6 ′, ribs 5a on the side of the vertical wall 4b forming the opening 4, and vertical walls 4b forming the opening 4. An imaginary bottom surface is formed by the upper end of the bridging rib 7a and the upper end of the connecting rib 7b, which are surrounded and located below the upper surface of the bogie main body 1.
[0018]
As described above, the caster 2 located on one short side 1b side of the transport truck Va located above is inserted into the hole 3 located on the one short side 1b side of the transport truck Vb located below. By disposing the casters 2 located on the other short side 1b side of the upper transport trolley Va outside the other short side 1b of the lower transport trolley Vb, the upper transport When the bogie body 1 of the trolley Va is stacked on the trolley body Va located above and the trolley body Vb located below so that the trolley body 1 of the trolley Va is mounted on the trolley body 1 of the trolley Vb located below. As shown in FIG. 6, a fitting member F projecting downward from the lower surface of the truck body 1 of the transport truck Va located above is formed on the truck body 1 of the transport truck Vb located below. Predetermined compartment 6 (in this embodiment, The compartments are located at both ends on one short side 1b side of the vehicle main body 1 and are designated by reference numeral 6 "). It is possible to prevent the transport vehicle Va located on the upper side from largely moving in the horizontal direction with respect to the transport vehicle Vb located on the lower side, and therefore, a large number of transport vehicles V are kept in a stable state. Can be stacked.
[0019]
As shown in FIG. 7, the bogie main body 1, which is a semi-finished product of the transport bogie V, that is, the bogie main bodies 1 on which the casters 2 are not attached are arranged along the long side 1 a of the bogie main body 1. When the center lines La and the center lines Lb along the short sides 1b are stacked so as to substantially match each other in a planar view, the fittings projecting downward from the lower surface of the bogie main body 1 located above. The joining member F is configured to be fitted in a fitting space 8 formed in an upper part of the long side central compartment 6 ′ formed in the bogie body 1 located below. With such a configuration, it is possible to prevent the carriage body 1 located on the upper side of the stacked body from largely moving in the horizontal direction with respect to the carriage body 1 located on the lower side. The cart body 1 as a number of semi-finished products can be stacked in a stable state.
[0020]
In the above-described embodiment, the hole 3 is formed by the caster 2 from the caster 2 near the caster 2 attached to the back surface of the bogie main body 1 and along the long side 1a of the bogie main body 1. Although an example formed near the center is shown, the hole 3 is formed near the caster 2 attached to the back surface of the bogie main body 1 and along the short side 1 b of the bogie main body 1. Thus, the truck body 1 may be formed near the center. In this case, at the time of the stacking work of the transport vehicles V, the upper transport vehicle Va and the lower transport vehicle Vb are separated from each other by the center lines La along the long side 1a of the vehicle body 1 and After arranging the center lines Lb along the short sides 1b so as to substantially coincide with each other in a plane, the transport trolley Va located above is moved along the short sides 1b of the trolley body 1. .
[0021]
In the carrier of the present invention, since the casters 2 are attached to the four back corners of the carrier main body 1, two casters are provided as in the carrier proposed in the earlier application of the present applicant. The traveling stability of the transport trolley is improved as compared with the transport trolley mounted at a position away from one side.
[0022]
【The invention's effect】
Since the present invention has the configuration described above, the following effects can be obtained.
[0023]
When stacking the transport vehicles, insert the casters located on one side of the upper transport vehicle into the holes located on one side of the lower transport vehicle, and Since the casters located on the other side of the transport trolley to be arranged are arranged outside the other side of the transport trolley located below, the transport trolley located above is moved to the transport located below. The workability of the stacking operation is improved as compared with the conventional stacking operation of the transport carts that are rotated by 180 degrees on the horizontal plane with respect to the cart, and the casters are mounted on the cart body. Are attached to the four corners of the back surface, so that the traveling stability of the carrier is improved.
[Brief description of the drawings]
FIG. 1 is a perspective view of a carriage according to the present invention.
FIG. 2 is a perspective view of the transport trolley of the present invention as seen from the back.
FIG. 3 is a rear view of the transport vehicle according to the present invention.
FIG. 4 is a vertical sectional view showing a state in which two carriages of the present invention are stacked.
FIG. 5 is a vertical cross-sectional view of the carriage according to the present invention.
FIG. 6 is a vertical sectional view showing a state in which two carriages of the present invention are stacked.
FIG. 7 is a vertical sectional view showing a state in which cart bodies constituting the transport cart of the present invention are stacked.
[Explanation of symbols]
F ····· Fitting member V ····························································· Casters

Claims (1)

The casters are attached to the four corners of the back surface of the cart body, and the casters are located near the center of the cart body near the casters and along one of the opposing sides of the cart body. An insertable hole is formed, and when stacking the transport vehicles, the caster located on one side of the upper transport vehicle is attached to one side of the lower transport vehicle. In addition to being inserted into the hole that is located, the caster located on the other side of the upper carrier is arranged outside the other side of the lower carrier. Transport trolley.

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