JP5349934B2 - Method of cross-stacking carts and carts used in the method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem that in a cross stacking method for a conventional truck, since a back surface of the truck body of the truck positioned at an upper side is cross-stacked so that it is abutted on an upper surface of the truck body of the truck positioned at a lower side, when a large number of trucks are cross-stacked, the truck body of the truck positioned at the lowest side is curved on an area of a central part of the truck body of the truck positioned at the lowest side because that the total weight of the cross-stacked truck is applied. <P>SOLUTION: A caster C of the trucks D3, D5 etc. positioned at a position of an odd number relative to the truck D1 at a first stage positioned at the lowest position is placed on the truck body D' of the truck positioned at the position of the immediately below an odd number through the trucks D2, D4 etc. positioned at the position of an even number relative to the truck at the first stage positioned at the lowest position. The trucks are cross-stacked so that a clearance S1 is formed between the truck body of the truck positioned at the position of the even number positioned between the trucks positioned at the position of the odd number and the truck body of the truck of the odd number positioned immediately above the truck of the even number. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a method of cross-stacking a cart comprising a cart body having a rectangular planar shape and casters attached to four corners on the back surface of the cart body, and a cart used in the method.

  When stacking trolleys, the so-called cross stacking, in which the long side of the trolley body of the trolley located above is arranged so as to be orthogonal to the long side of the trolley body of the trolley located below, Has been done.

  The cross-stacking method and the bogie described above are disclosed in Patent Document 1 as an example.

Utility Model Registration No. 3033534

  In the cross-stacking method of the conventional cart described above, a large number of carts are used because the back surface of the cart body of the cart positioned above is cross-stacked so as to contact the upper surface of the cart body of the cart positioned below. When the trucks are cross-stacked, the total weight of the carts cross-stacked on the bottom cart is added to the central area of the cart body at the bottom. There is a problem that the bogie body of the bogie located at the bottom is curved and the bogie body of the bogie located at the bottom is damaged.

  Further, when the projections or the like are not formed on the upper surface of the cart body and are formed flat, there is a problem that the carts stacked in a cross are easily moved horizontally and stable cross stacking cannot be performed. There is an advantage that a large amount of luggage can be placed on the cart by forming the top surface of the cart body flat, but in this way, the carts stacked in a cross are easy to move horizontally and stable cross There is a disadvantage that it cannot be stacked.

  An object of the present invention is to solve the above-described conventional method of cross-stacking a cart and the problems of the conventional cart.

In order to achieve the above-described object, the present invention is configured such that the carts are stacked such that the long side portion of the peripheral wall of the cart positioned above is orthogonal to the long side portion of the peripheral wall of the cart positioned below. In the cross-stacking method of the carriage, the top surface of the carriage body of the carriage is formed in a flat plate shape without a protruding portion that prevents the load from falling , and the carriage body is formed from the back surface of the carriage body. An engaging protrusion that protrudes downward is formed along the short side of the carriage body, and the carriage body protrudes downward from the back surface of the carriage body and extends beyond the engagement protrusion. In addition, a pedestal member that does not extend downward is formed along the long side portion of the cart body, and further, a hand-held through hole is formed along the long side portion of the cart body. for the first stage of the carriage located at the bottom, the dolly caster in the odd positions With respect to the first-stage carriage located at the bottom, it is in an odd position so as to be placed on the carriage main body of the carriage in the odd-numbered position directly below the carriage in the even-numbered position. When the cart and the cart at the even position are cross-stacked, the base member formed on the back surface of the cart body of the second-stage cart is the cart body of the first-stage cart at the bottom. When the carts are cross-stacked, the top surface of the cart body of the cart at the even position and the cart at the even position are configured. The trolley of the cart located below and being cross-stacked so as to form a gap between the lower end of the pedestal member formed on the back surface of the cart body of the odd-numbered cart located directly above In the hand-held through-hole formed in the main body, a base positioned directly above the bottom cart Engaging projection formed on the carriage body, which is constituted so as to fit.

In addition, in order to achieve the above-described object, the upper surface of the bogie body of the bogie is formed in a flat plate shape without a protruding portion that prevents the load from falling . An engagement protrusion projecting downward from the back surface of the cart body is formed along the short side of the cart body, and the cart body projects downward from the back surface of the cart body, and A pedestal member that does not extend downward beyond the engaging protrusion is formed along the long side portion of the cart body, and further, a hand-held through hole is formed along the long side portion of the cart body. are bored Te, relative to the first stage of the carriage located at the bottom, casters of the carriage in the odd positions, relative to the first stage of the bogie located below the top, even The odd number so that it is placed on the bogie body of the bogie in the odd position directly below through the bogie in position When the carriage is in the position of the carriage and the even in the position is piled cloth, the second stage of the base member formed on the back surface of the carriage body of the truck, the first stage of the carriage located at the bottom It is configured to be placed on the top surface of the mounting plate of the cart body, and when the cart is cross-stacked, the top surface of the cart body of the cart at even positions and the even position Cross-stacked so as to form a gap between the lower end of the base member formed on the back of the main body of the cart at the odd-numbered position located directly above the bogie and located below An engagement protrusion formed on the bogie body of the bogie located directly above the bogie located below is fitted in a hand-held through hole formed in the bogie body of the bogie.

  With respect to the first stage carriage located at the bottom, the caster of the carriage at the odd number position passes through the carriage at the even position relative to the first stage carriage located at the bottom position. A carriage main body of the cart at the even position located between the carts at the odd number position, and the carriage main body at the even position located between the carts at the odd position, and directly above the even carriage. Since the carts are cross-stacked so that a gap is formed between the cart body of the odd-numbered carts positioned, the load on the cart applied to the central region of the cart body of the first-stage cart is reduced. Therefore, it is possible to solve the conventional problem that the main body of the first-stage carriage is curved and the first-stage carriage is damaged.

  An engagement protrusion formed on the bogie body of the bogie located immediately above the bogie located below is fitted into a hand-held through hole formed in the bogie body of the bogie located below. Therefore, even if the top surface of the cart body is a flat plate with no protrusions, the cross-stacked cart does not move in the horizontal direction. Therefore, a large number of carts can be cross-stacked in a stable state. can do.

  In the cart used for the cross-stacking method of the cart, the top surface of the cart body of the cart is formed into a flat plate shape without protrusions and the bottom of the cart when the cart is stacked on the back surface of the cart body. Since the engagement protrusions that fit into the through holes for holding formed on the bogie body of the bogie located at the position are formed, the upper surface of the bogie body is cross-stacked even if it is a flat plate shape without protrusions etc. The cart does not move in the horizontal direction. Therefore, a large number of carts can be cross-stacked in a stable state.

  First, the cart D used in the cross-stacking method of the cart will be described with reference to FIGS.

  The cart D is composed of a cart body D 'and casters C attached in the vicinity of four corners on the back surface of the carriage body D'.

  The carriage main body D ′ has a flat plate-like mounting plate 1 having a rectangular planar shape and no protrusions, and a peripheral wall 2 suspended from the periphery of the mounting plate 1. Further, in the space formed by the mounting plate 1 and the peripheral wall 2, the long side vertical ribs 3 a along the opposing long sides 2 a forming the peripheral wall 2 and the opposing short sides forming the peripheral wall 2 are provided. An intersecting rib member 3 composed of short side vertical ribs 3b along the portion 2b is formed. Thus, the cart body D ′ is composed of the flat plate-like mounting plate 1 having no protrusions, the peripheral wall 2 and the intersecting rib member 3 having the same height as the peripheral wall 2. A horizontal back surface D ″ of the cart body D ′ is constituted by the lower end of the intersecting rib member 3.

  Engaging protrusions 4 are formed on the back surface D ″ of the cart body D ′ by extending appropriate long side vertical ribs 3a and short side vertical ribs 3b of the cross rib member 3 downward. The engaging protrusion 4 formed so as to protrude downward from the back surface D ″ of the cart body D ′ is in the vicinity of the opposing short side 2b forming the peripheral wall 2, along the short side 2b, and Two are formed at a predetermined interval.

  A base member 5 is formed on the back surface D ″ of the cart body D ′ by extending appropriate long side vertical ribs 3 a and short side vertical ribs 3 b of the cross rib member 3 downward. The pedestal members 5 are formed in two rows in the vicinity of the opposing long side portions 2a forming the peripheral wall 2 along the long side portions 2a at a predetermined interval, and the lower end 5a of the pedestal member 5 is formed. Is configured so as not to extend downward beyond the lower end 4 a of the engaging protrusion 4.

  A hand-held through hole 6 is formed in the vicinity of the long side portion 2a of the mounting plate 1 constituting the cart body D '. Two hand-held through-holes 6 are formed in the vicinity of the central part of the opposing long side part 2a forming the peripheral wall 2 along the long side part 2a at a predetermined interval.

  Next, the cross stacking of the two carriages D will be described with reference to FIGS.

  The long side portion 2a of the peripheral wall 2 is orthogonal to the long side portion 2a of the peripheral wall 2 of the lowermost cart (referred to as a first-stage cart) D1 placed on the ground or floor. In addition, when another cart (referred to as a second cart) D2 is stacked, so-called cross-stacked, the lower end 5a of the base member 5 formed on the back surface D ″ of the cart body D ′ of the second cart D2. Is mounted so as to contact the upper surface 1a of the mounting plate 1 of the carriage main body D ′ of the first-stage carriage D1, and the hand-held transparent formed on the carriage main body D ′ of the first-stage carriage D1. The engagement protrusion 4 formed on the back surface D ″ of the carriage main body D ′ of the second stage carriage D2 is configured to fit into the hole 6. Further, the caster C of the second stage carriage D2 is positioned outside the opposing long side portions 2a forming the peripheral wall 2 of the carriage body D 'of the first stage carriage D1.

  As described above, when the second-stage carriage D2 is cross-stacked on the first-stage carriage D1, the pedestal member 5 formed on the carriage body D ′ of the second-stage carriage D2 is It is placed on the cart body D ′ of the first cart D1, and is attached to the handheld through hole 6 formed in the cart body D ′ of the first cart D1, and to the cart body D ′ of the second cart D2. Since the formed engaging protrusion 4 is configured to fit, the second stage carriage D2 does not move in the horizontal direction, and the first stage carriage D1 The second-stage cart D2 can be cross-stacked in a stable state. As described above, even when the upper surface of the carriage main body D 'is a flat plate shape having no protrusions, it can be cross-stacked stably.

  Next, a case where a third cart (referred to as a third cart) D3 is cross-stacked on the second cart D2 will be described with reference to FIGS.

  The second stage carriage D2 is connected to the third stage carriage D2 so that the long side part 2a of the peripheral wall 2 of the third stage carriage D3 is orthogonal to the long side part 2a of the peripheral wall 2 of the second stage carriage D2. When the cart D3 is cross-stacked, it is formed on the back surface D ″ of the cart body D ′ of the third-stage cart D3 in the hand-held through hole 6 formed in the cart body D ′ of the second-stage cart D2. The engagement projection 4 is fitted, and the wheel c1 of the caster C of the third-stage carriage D3 is attached to the upper surface 1a of the carriage main body D ′ to which the caster C of the first-stage carriage D1 is attached. Between the upper surface 1a of the carriage main body D ′ of the second stage carriage D2 and the lower end 5a of the base member 5 formed on the back surface D ″ of the carriage main body D ′ of the third stage carriage D3. In addition, the gap S1 is formed.

As described above, when three carts D1, D2, and D3 are cross-stacked (the long sides 2a of the cart body D ′ are stacked so as to be orthogonal to each other), the first cart The carriage body D ′ of the second-stage carriage D2 cross-stacked with respect to the first-stage carriage D1 is placed on the carriage body D ′ of D1, and is cross-stacked with respect to the second-stage carriage D2. The wheel c1 of the caster C of the third-stage carriage D3 is placed on the carriage body D ′ of the first-stage carriage D1, and the upper surface 1a of the carriage body D ′ of the second-stage carriage D2 ; A gap S1 is formed between the lower end 5a of the pedestal member 5 formed on the back surface D ″ of the carriage body D ′ of the third stage carriage D3.

By configuring as described above, the carriage main body D ′ of the second stage carriage D2 is placed in the central region of the carriage main body D ′ of the first stage carriage D1, but the third stage The wheel c1 of the caster C of the cart D3 is placed on the upper surface 1a of the cart body D 'to which the caster C of the first cart D1 is attached, and the cart body D of the second cart D2 is mounted. Since a gap S1 is formed between the upper surface 1a of 'and the lower end 5a of the base member 5 formed on the back surface D "of the carriage body D' of the third stage carriage D3, the third stage The load of the carriage D3 is the first stage carriage through the caster C of the third stage carriage D3 located immediately above the caster C of the first stage carriage D1 and the carriage body D ′ of the first stage carriage D1. In the central region of the carriage body D ′ of the first stage carriage D1, which is borne by the caster C of D1, the third stage carriage Since the load of D3 is not applied, it is possible to solve the conventional problem that the carriage main body D ′ of the first stage carriage D1 is curved and the carriage main body D ′ of the first stage carriage D1 is damaged. it can.

  FIG. 9 shows a state where the fourth-stage carriage D4 to the eleventh-stage carriage D11 are cross-stacked on the cross-stacked first-stage carriage D1 to the third-stage carriage D3. Has been.

  The relationship between the fourth-stage carriage D4 and the fifth-stage carriage D5 cross-stacked with respect to the fourth-stage carriage D4 is that the third-stage carriage D3 described above is placed on the ground or the floor. This is the same as the case of the above-described first-stage cart D1. That is, the carriage main body D ′ of the fourth stage carriage D4 is placed in the central region of the carriage main body D ′ of the third stage carriage D3, and the wheel c1 of the caster C of the fifth stage carriage D5 is 3 It is placed on the upper surface 1a of the carriage main body D ′ to which the caster C of the stage carriage D3 is attached, and the upper surface 1a of the carriage main body D ′ of the fourth stage carriage D4 and the fifth stage carriage D5. A gap S1 is formed between the lower end 5a of the base member 5 formed on the back surface D "of the main body D 'of the car body. Hereinafter, the car D4 is cross-stacked in the same manner. Become.

As described above, when the carts D1 to D11 are cross-stacked, the wheels of the casters C of the third-stage cart D3 are placed on the upper surface of the cart body D ′ of the first-stage cart D1 located at the bottom. c1 is placed, and the upper surface 1a of the carriage body D 'of the second stage carriage D2 and the lower end 5a of the base member 5 formed on the back surface D "of the carriage body D' of the third stage carriage D3; A gap S1 is formed between the wheels C1 of the casters C of the fifth-stage carriage D5 on the upper surface of the carriage body D ′ of the third-stage carriage D3. In addition, there is a gap between the upper surface 1a of the carriage main body D ′ of the fourth stage carriage D4 and the lower end 5a of the base member 5 formed on the rear surface D ″ of the carriage main body D ′ of the fifth stage carriage D5. S1 is formed. Similarly, the wheel c1 of the caster C of the seventh stage carriage D7 is placed on the upper surface of the carriage body D ′ of the fifth stage carriage D5, and the upper surface of the carriage body D ′ of the sixth stage carriage D6. A gap S1 is formed between 1a and the lower end 5a of the pedestal member 5 formed on the back surface D ″ of the carriage body D ′ of the seventh stage carriage D7.

As described above, the carts D3, D5, D7, D9, D11,..., Which are located at odd positions with respect to the first-stage cart D1 located at the bottom by cross-stacking the carts D, are casters. C is a cart body D ′ of the carts D3, D5, D7, D9, D11... At the odd positions directly below the carts D2, D4, D6, D8, D10. Of the carriages D2, D4, D6, D8, D10... Placed in the even positions located between the carriages D3, D5, D7, D9, D11. The upper surface 1a of the main body D ′ and the main bodies D ′ of the odd-numbered trucks D3, D5, D7, D9, D11... Positioned immediately above the even-numbered trucks D2, D4, D6, D8, D10. Between the lower end 5a of the base member 5 formed on the back surface D ″, there is a gap S1. To be formed. Thus, the truck body D of the first-stage trolley D1 'it means that the load of the carriage D applied to the central region of the can be reduced, carriage main body D in the first stage of the carriage D1' Can be solved and the conventional problem that the main body D ′ of the first-stage bogie D1 is damaged can be solved.

  In addition, when the carriage D is cross-stacked, the engagement formed on the carriage main body D ′ of the carriage D located directly above the hand-held through hole 6 formed on the carriage main body D ′ of the carriage D located below. Since the mating protrusion 4 is configured to fit, even if the upper surface of the cart body D ′ is a flat plate shape without protrusions or the like, the cross-stacked cart D moves in the horizontal direction. Therefore, a large number of carts D can be cross-stacked in a stable state.

  The above-described cart body D ′ of the carts D2, D4, D6, D8, D10... At the even positions located between the carts D3, D5, D7, D9, D11. On the upper surface 1a and the back surface D ″ of the cart body D ′ of the odd carts D3, D5, D7, D9, D11... Positioned just above the even carts D2, D4, D6, D8, D10. The gap S1 formed between the formed lower end 5a of the base member 5 can be formed by appropriately setting the diameter of the wheel c1 of the caster C.

  The pedestal member 5 formed on the back surface D ″ of the carriage main body D ′ constituting the carriage D can also be omitted. Further, the caster C of the carriage D is placed on the upper surface of the carriage main body D ′ constituting the carriage D. In this case, the wheel c1 of the caster C of the carriage D is placed on the bottom of the caster fitting recess. .

FIG. 1 is a perspective view from above of the carriage of the present invention. FIG. 2 is a perspective view from the bottom of the carriage of the present invention. FIG. 3 is a vertical cross-sectional view along the long side portion of the carriage of the present invention. FIG. 4 is a perspective view showing a state in which two trolleys of the present invention are cross-stacked. FIG. 5 is a front view showing a state in which the two carriages of the present invention are cross-stacked. FIG. 6 is a vertical cross-sectional view showing a state in which two carriages of the present invention are cross-stacked. FIG. 7 is a perspective view of a state in which the three carts of the present invention are cross-stacked. FIG. 8 is a vertical sectional view showing a state in which the three carts of the present invention are cross-stacked. FIG. 9 is a front view showing a state in which a plurality of carts of the present invention are cross-stacked.

Explanation of symbols

C ･ ･ ･ ･ ･ Caster c1 ･ ･ ･ ･ Wheel D ･ ･ ･ ･ Car D ' Carriage body 1 ... Placement plate 2 ... Peripheral wall 4 ... Engagement protrusion 5 ...・ ・ ・ ・ ・ ・ ・ ・ Base member 6 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Hand-held through-hole

Claims (2)

In the cross-stacking method of the trolley in which the trolleys are stacked so that the long side of the peripheral wall of the trolley positioned above is orthogonal to the long side of the peripheral wall of the trolley located below, the trolley main body of the trolley The upper surface of the carriage body is formed in a flat plate shape having no protrusions that prevent the load from falling , and the carriage main body has an engagement protrusion protruding downward from the rear surface of the carriage body. Further, a pedestal member that protrudes downward from the back surface of the cart body and does not extend downward beyond the engagement projection is formed on the cart body. It is formed along the long side portion of the main body, and further, a hand-held through hole is formed along the long side portion of the main body of the cart, On the other hand, the caster of the cart in the odd number position is compared with the cart of the first step located at the bottom. When the trolley at the odd position and the trolley at the even position are cross-stacked so as to be placed on the bogie body of the trolley at the odd number directly below through the trolley at the even position The pedestal member formed on the back surface of the carriage body of the second stage carriage is configured to be placed on the upper surface of the carriage body of the carriage body of the first stage carriage located at the bottom. In addition, when the carts are cross-stacked, the cart body of the cart at the odd position, which is positioned directly above the cart body at the even position and the cart body at the even position. Cross-stacked so as to form a gap between the lower end of the pedestal member formed on the back surface of the pedestal, and is positioned below the hand-held through hole formed in the trolley body of the trolley located below. The engaging protrusion formed on the bogie body of the bogie located directly above the bogie is fitted Cross stacking method of the bogie, characterized in that it is configured to so that. The upper surface of the bogie main body of the bogie is formed in a flat plate shape without a protrusion that prevents the load from falling , and the bogie main body has an engaging protrusion that projects downward from the back surface of the bogie main body. The pedestal is formed along the short side of the trolley body, and further, the pedestal body protrudes downward from the back surface of the trolley body and does not extend downward beyond the engaging protrusion. The member is formed along the long side portion of the bogie body, and further, the hand-held through hole is formed along the long side portion of the bogie body, and is located at the bottommost one step. The caster of the cart in an odd position with respect to the first cart is located in the odd position directly below the cart in the even position with respect to the first cart in the lowermost position. The truck at the odd position and the truck at the even position are closed so that they are placed on the truck body. When it is stacked, the second stage of the base member formed on the back surface of the carriage body of the carriage is placed on the upper surface of the mounting plate of the carriage main body of the first stage of the cart located at the bottom In addition, when the carts are cross-stacked, the upper surface of the cart body of the cart at the even position and the odd position located immediately above the cart at the even position. Cross-stacked so as to form a gap between the lower end of the base member formed on the back surface of the bogie body of the bogie, and a hand-held through hole formed in the bogie body of the bogie located below, 2. The method of cross-stacking carts according to claim 1, wherein engaging projections formed on a cart main body of the cart located immediately above the cart located below are fitted. Trolley used for.

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