JP6989899B2 - Transport trolley - Google Patents

Description

Application of Article 30, Paragraph 2 of the Patent Act October 2, 2017 Prototype of transport trolley provided to Ryoden Elevator Facility Co., Ltd.

The present invention relates to a transport trolley on which luggage is placed and transported.

As disclosed in Patent Document 1, the conventional transport trolley has a substantially rectangular underframe in a plan view and wheels attached to the lower portions of each corner of the underframe, and faces the underframe. A hooking portion is provided on the lower surfaces of the two sides so that a belt, a rope, or the like can be hooked. The hooking portion is formed by projecting a hanging rod from a strip-shaped mounting plate in a vertical state.

Japanese Unexamined Patent Publication No. 2013-169932.

According to the prior art, a belt or a rope for preventing the load of the mounted object placed on the underframe from collapsing can be hooked through the hooking portions provided on the lower surfaces of the two sides of the underframe. Since the hooking part has one end of the hanging rod fixed to the mounting plate and the other end of the hanging rod is a free end, it is difficult to secure the hooking stability when hooking a hook such as a lashing belt. be.
An object of the present invention is to provide a material handling trolley capable of solving such problems of the prior art.

An object of the present invention is to provide a transport trolley in which hook hooking holes are formed on the lower surfaces of two opposing sides of an underframe so that hooks can be stably engaged.

Specific means for solving the problem in the present invention are as follows.
First, it is a transport trolley having a substantially rectangular underframe 3 in a plan view and wheels 4 attached to the lower portions of each corner of the underframe 3.
A hook engagement hole 5 to which the hook F can be engaged is formed on the lower surfaces of the two opposing sides of the underframe 3 .
The underframe 3 connects a pair of vertically long square cylinders 6L, a pair of horizontally long square cylinders 6S, and the ends of the vertically long square cylinders 6L and the ends of the horizontally long square cylinders 6S. It is formed of a corner member 7 and
The hook hooking hole 5 is a circular hole formed in a square cylinder lower wall 6a of a square cylinder member 6 facing each other so as to penetrate inside and outside the square cylinder.
The square lumber 6 is provided with a reinforcing material 9 capable of contacting the hook F from the periphery of the hook hooking hole 5 to the outer surface of the frame.
The reinforcing material 9 is erected from a bottom wall portion 9a forming a reinforcing hole 10 communicating with the hook hooking hole 5 and one end of the bottom wall portion 9a, and is attached and fixed to the outer surface of the frame of the square tubular member 6. It is characterized in that an outer wall portion 9b and an inner wall portion 9c that stands upright from the other end of the bottom wall portion 9a and is attached and fixed to the inner surface of the frame of the square tubular member 6 are provided .

Secondly, the reinforcing material 9 is formed in a substantially U-shape in front view in which the plate material is bent at two points, and is lower at a position corresponding to the hook engagement hole 5 at intervals in the longitudinal direction of the square tubular material 6. It is characterized in that it is fitted from .
Thirdly, it is a transport trolley having a substantially rectangular underframe 3 in a plan view and wheels 4 attached to the lower portions of each corner of the underframe 3.
A hook engagement hole 5 to which the hook F can be engaged is formed on the lower surfaces of the two opposing sides of the underframe 3.
The underframe 3 connects a pair of vertically long square cylinders 6L, a pair of horizontally long square cylinders 6S, and the ends of the vertically long square cylinders 6L and the ends of the horizontally long square cylinders 6S. It is formed of a corner member 7 and
The hook hooking hole 5 is a circular hole formed in a square cylinder lower wall 6a of a square cylinder member 6 facing each other so as to penetrate inside and outside the square cylinder.
The square lumber 6 is provided with a reinforcing material 9 capable of contacting the hook F from the periphery of the hook engaging hole 5 to the outer surface of the frame at a position corresponding to the hook engaging hole 5 at intervals in the longitudinal direction . ,
The reinforcing material 9 is erected from a bottom wall portion 9a forming a reinforcing hole 10 communicating with the hook hooking hole 5 and one end of the bottom wall portion 9a, and is attached and fixed to the outer surface of the frame of the square tubular member 6. The hook F is provided with an outer wall portion 9b that can be brought into contact with the hook F.

According to the present invention, the hook can be stably engaged with the underframe.
That is, in the present invention , since the hook engaging holes 5 are formed on the lower surfaces of the two opposing sides of the underframe 3, the hook F can be stably engaged on the lower surfaces of the two opposing sides of the underframe 3. ..
Further , in the present invention, since the hook engagement hole 5 is a circular hole formed in the square cylinder lower wall 6a of the square cylinder member 6, the engagement position of the hook F is substantially constant, and the engagement stability of the hook F is further enhanced. Can be done.

Further, in the present invention , the square lumber 6 is provided with a reinforcing material 9 capable of contacting the hook F from the periphery of the hook hooking hole 5 to the outer surface of the frame. Therefore, even if the hook F is metal, the square lumber 6 is provided. 6 can be protected without being worn or damaged.
Furthermore, in the present invention , the reinforcing material 9 has a bottom wall portion 9a, an outer wall portion 9b, and an inner wall portion 9c, the bottom wall portion 9a reinforces the hook hooking hole 5, and the outer wall portion 9b is a frame of the square tubular member 6. The outer surface is reinforced, and the inner wall portion 9c can reinforce the square tubular material 6 and secure the mounting strength of the reinforcing material 9.

It is a top view which shows the embodiment of this invention. FIG. 5 is a cross-sectional view taken along the line XX of FIG. It is a front view of a transport trolley. It is a side view of a transport trolley. 3 views of the reinforcing material, (A) is a front view, (B) is a side view, and (C) is a bottom view.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In FIGS. 1 to 5, the carrier 1 is roughly classified into a frame 3 having a substantially rectangular shape in a plan view, and four wheels 4 attached to the lower portions of each corner of the frame 3.
The underframe 3 has a pair of vertically long square cylinders (vertical square cylinder) 6L, a pair of horizontally long square cylinders (horizontal square cylinder) 6S, and end portions of the vertically long square cylinder 6L. And a corner member 7 connecting the end portion of the horizontally long square tubular member 6S.

In the underframe 3, a central square cylinder 6M parallel to the pair of vertically long square cylinders 6L is arranged, and the front and rear ends of the central square cylinder 6M are connected to the horizontally long square cylinder 6S to form a pair. Two bottom crosspieces 6P parallel to them are arranged between the horizontally long square tube members 6S, and the bottom crosspieces 6P are fixed to the lower surfaces of both vertically long square tube members 6L and the central square tube member 6M.
Further, in the underframe 3, at each of the front and rear ends, a horizontally long square tube member 6S, a pair of corner members 7 fixed to the horizontally long square tube member 7, and a vertically long square tube member 6L connected to the corner member 7 are straddled. The bottom plate 6W is bolted to the lower surface of the bottom plate 6W, and the caster base 4a of the wheel 4 is fixed to the lower surface of the bottom plate 6W.

The upper surfaces of the vertically long square cylinder member 6L, the central square cylinder material 6M, the horizontally long square cylinder material 6S, and the corner member 7 of the underframe 3 are substantially flush with each other, and the upper surface of the bottom plate 6W is recessed with respect to these upper surfaces. When the transport trolleys 1 are stacked one above the other, the upper surface of the bottom plate 6W becomes the mounting surface of the wheels 4 of the upper transport trolley 1.
As shown in FIG. 2, the vertically long square cylinder member 6L, the central square cylinder material 6M, and the horizontally long square cylinder material 6S of the underframe 3 are formed of a square pipe having a substantially quadrangular cross section made of an aluminum alloy or the like, and the corner member 7 and the bottom. The crosspiece 6P is also extruded from an aluminum alloy.

The corner member 7 is a pair of a tubular portion 7A having an insertion hole 12 formed therein, a pair of vertically connecting pieces 7B connected by sandwiching a vertically long square tubular member 6L, and a pair of vertically connecting pieces 7B connecting by sandwiching a horizontally long square tubular member 6S. The horizontal connecting piece 7C and the pair of parallel nut locking engaging ribs 7D between the vertical connecting piece 7B and the horizontal connecting piece 7C are formed long over both upper and lower ends.
The tubular portion 7A of the corner member 7 forms an insertion hole 12 on the inner circumference into which the lower end of the support column 11 can be inserted, and has an escape groove 13 that communicates with the insertion hole 12 and has a groove bottom concentric with the insertion hole 12. It is formed in two opposite locations.

The support column 11 is used as needed to push and pull the carrier 1, the lower end is inserted into the insertion hole 12 and received by the bottom plate 6W, and the bolt 17 is radially penetrated through the lower end and the cylinder portion 7A, and this bolt is used. A nut 18 locked to the engaging rib 7D is screwed and fastened to 17.
A cushioning material 16 made of rubber, resin, or the like is detachably attached to the outer peripheral surface of the tubular portion 7A.

A pair of vertically long square tubular members 6L forming two opposite sides of the underframe 3 is formed with a hook hooking hole 5 on the lower surface on which the hook F can be hooked. The hook hooking hole 5 is a circular hole formed in a square cylinder lower wall 6a of a vertically long square cylinder member 6L so as to penetrate inside and outside the square cylinder.
Reinforcing members 9 are provided at two locations on each vertically long square tubular member 6L at intervals in the longitudinal direction. The reinforcing member 9 is arranged at a position corresponding to the hook engaging hole 5, reinforces the periphery of the hook engaging hole 5, and reinforces the vertically long square tubular member 6L.

The reinforcing material 9 is formed by bending a plate material at two points to form a substantially U-shape in front view and fitting it into a vertically long square tubular material 6L from below, and a reinforcing hole 10 communicating with a hook engaging hole 5 is provided. The formed bottom wall portion 9a, the outer wall portion 9b erected from one end of the bottom wall portion 9a and attached and fixed to the outer surface of the frame of the square lumber 6, and erected from the other end of the bottom wall portion 9a. It has an inner wall portion 9c attached and fixed to the inner surface of the frame of the square lumber 6.

As shown in FIG. 3, the load placed on the transport trolley 1 is covered with a lashing belt 20 to prevent the load from collapsing. The hook F provided at the end of the lashing belt 20 is inserted into the hook engaging hole 5 and the reinforcing hole 10 and engaged with the hole peripheral portion.
The bottom wall portion 9a of the reinforcing material 9 which is the hole peripheral portion of the reinforcing hole 10 reinforces the square tubular lower wall 6a of the vertically long square tubular material 6L which is the hole peripheral portion of the hook hooking hole 5, and is from the hook F. It can sufficiently support the load received.

Further, when the hook hooking hole 5 and the reinforcing hole 10 are circular holes, the hook F is hooked at the portion closest to the outer wall portion 9b, and the hook F hooking position in the longitudinal direction of the vertically long square tubular member 6L is omitted. It becomes constant.
The hook F hooked to the hook hooking hole 5 and the reinforcing hole 10 comes into contact with the outer surface of the frame of the vertically elongated square tubular member 6L, but the vertically elongated square tubular member 6L does not directly abut with the reinforcing member 9. The outer wall portion 9b is in contact with the outer wall portion 9b instead, and the vertically long square tube member 6L itself is prevented from being damaged.

The inner wall portion 9c of the reinforcing material 9 is formed to have the same dimensions as the outer wall portion 9b, but may be shorter than the outer wall portion 9b. Reinforce the inner and outer surfaces of the square tube member 6L.
The present invention is not limited to the above embodiment, and the shape, configuration, combination, and the like of the members can be changed.

For example, the hook hooking holes 5 and the reinforcing material 9 may be provided in the horizontally long square lumber 6S, or may be provided in one or three or more places in the longitudinal direction of each square lumber 6.
The hole shapes of the hook hooking hole 5 and the reinforcing hole 10 can be elliptical or square.
The reinforcing material 9 may omit the inner wall portion 9c, or may be formed only of the bottom wall portion 9a and fixed to the square tube lower wall 6a of the square tube member 6.

The transport trolley 1 may have three or six or more wheels 4, and the support column 11 may be fixed to the underframe 3.

1 Transport trolley 3 Underframe 4 Wheels 4a Caster stand 5 Hook hooking hole 6 Square cylinder 6L Vertical square cylinder 6M Central square cylinder 6P Bottom crosspiece 6S Horizontal square cylinder 6W Bottom plate 6a Square cylinder lower wall 7 Corner member 7A Part 7B Vertical connection piece 7C Horizontal connection piece 7D Engagement rib 9 Reinforcing material 9a Bottom wall part 9b Outer wall part 9c Inner wall part 20 Lashing belt F hook

Claims (3)

A transport trolley having a substantially rectangular underframe (3) in a plan view and wheels (4) attached to the lower portions of each corner of the underframe (3).
A hook hooking hole (5) to which the hook (F) can be hooked is formed on the lower surfaces of the two opposing sides of the underframe (3) .
The underframe (3) includes a pair of vertically long square cylinders (6L), a pair of horizontally long square cylinders (6S), and ends and horizontally long square cylinders of the vertically long square cylinder (6L). It is formed of a corner member (7) that connects to the end of the material (6S).
The hook hooking hole (5) is a circular hole formed in the square cylinder lower wall (6a) of the opposite square cylinder material (6) so as to penetrate inside and outside the square cylinder.
The square lumber (6) is provided with a reinforcing material (9) capable of contacting the hook (F) from the periphery of the hook hooking hole (5) to the outer surface of the frame.
The reinforcing material (9) is a square tube member standing upright from a bottom wall portion (9a) forming a reinforcing hole (10) communicating with the hook hooking hole (5) and one end of the bottom wall portion (9a). An outer wall portion (9b) attached and fixed to the outer surface of the frame of (6), and an inner wall portion erected from the other end of the bottom wall portion (9a) and attached and fixed to the inner surface of the frame of the square tube member (6). A transport trolley characterized in that (9c) is provided . The reinforcing material (9) is formed in a substantially U-shape in front view in which the plate material is bent at two points, and is positioned at a position corresponding to the hook engagement hole (5) at intervals in the longitudinal direction of the square tubular material (6). The carrier according to claim 1, wherein the carrier is fitted from the lower side . A transport trolley having a substantially rectangular underframe (3) in a plan view and wheels (4) attached to the lower portions of each corner of the underframe (3).
A hook hooking hole (5) to which the hook (F) can be hooked is formed on the lower surfaces of the two opposing sides of the underframe (3).
The underframe (3) includes a pair of vertically long square cylinders (6L), a pair of horizontally long square cylinders (6S), and ends and horizontally long square cylinders of the vertically long square cylinder (6L). It is formed and formed of a corner member (7) that connects to the end of the material (6S).
The hook hooking hole (5) is a circular hole formed in the square cylinder lower wall (6a) of the opposite square cylinder material (6) so as to penetrate inside and outside the square cylinder.
The square lumber (6) can be in contact with the hook (F) at a position corresponding to the hook engagement hole (5) at a distance in the longitudinal direction from the periphery of the hook engagement hole (5) to the outer surface of the frame. Reinforcing material (9) is provided ,
The reinforcing material (9) is a square tube member that is erected from a bottom wall portion (9a) having a reinforcing hole (10) communicating with the hook hooking hole (5) and one end of the bottom wall portion (9a). (6) A transport trolley characterized in that an outer wall portion (9b) that is attached and fixed to the outer surface of the frame and is in contact with the hook (F) is provided .

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