JP3211246U - Transport cart - Google Patents

Abstract

The present invention provides a transport cart that prevents a hand bar holding member from being deformed or damaged even if a hand bar holding member provided at a corner portion of a car body collides with an installation or the like in a building. A cart body 12 of a transport cart 10 is formed in a rectangular shape in plan view. An iron hand bar holding member 30 is attached to a corner portion of the cart body. The bar insertion part of the hand bar holding member is formed in a leaf shape in plan view, and the lower part of the hand bar 40 is inserted into this bar insertion part. A frame insertion first plate is fixed to one end of the rod holding cylinder 32 of the hand bar holding member, and a frame insertion second plate is fixed to the other end. A buffer corner cover 50 having a substantially L shape in plan view is attached to the outside of the hand bar holding member. [Selection] Figure 1

Description

The present invention relates to a transport cart for transporting a transported object, and more particularly to a transport cart having high strength at a corner portion of a cart body of the transport cart.

2. Description of the Related Art A transport cart is widely used for transporting heavy transport items and bulky transport items in buildings such as factories.
In this transport cart, a plurality of casters are rotatably provided at a lower portion of a flat cart body, and the transported material can be easily transported even if the transported material is placed on the cart body (for example, Patent Document 1). ).
A hand bar mounting body that also serves as a caster mounting body is provided at a corner portion of the cart body of the transport cart, and a pipe-shaped hand bar is inserted into an insertion hole formed in the hand bar mounting body in the vertical direction. The hand bar is erected by inserting the lower part.
Accordingly, the operator can easily move the transport cart by gripping and pushing or pulling the standing hand bar.

JP 2005-88768 A

However, when using a transport cart at work, it is necessary to move the transport cart in a hurry, so there is a high probability that the corner of the cart body will hit an installation in the building, and the hand bar mounting body is made of an aluminum alloy. Therefore, there is a problem that the hand bar attaching body is deformed or damaged when the corner portion of the main body of the carriage strongly collides with an installation object in the building while the carriage is moved.
In addition, when the carriage is moved, the hand bar is pushed and pulled by holding the hand bar that is erected at the corner of the carriage body. There is a possibility that the mounting body is deformed.

The present invention has been made in view of the above facts, and even if the hand bar holding member provided at the corner of the carriage main body of the transport cart collides with an installation in the building, the hand bar holding member is deformed. It is an object of the present invention to provide a transport cart that can be prevented from being damaged.

The invention according to claim 1 is a cart base formed in a rectangular shape in plan view, four side surfaces formed on the cart base, and provided on each of the four side surfaces and constitutes a cart body together with the cart base. Four side-surface cylindrical frames, an iron hand bar holding member that is provided at a corner portion of the car body and holds the hand bar, and is formed on the bar holding cylinder of the hand bar holding member in the vertical direction. A bar insertion portion into which the lower portion of the hand bar is inserted in a close contact state, and the cart side cylindrical frame provided on one side of the rod holding cylinder and provided on the side surface of the cart base A frame insertion first plate fixed to the carriage side surface cylindrical frame in a state of being inserted into the end of the frame, and projecting in a direction perpendicular to the frame insertion first plate on the other side of the rod holding cylinder. And a frame insertion second plate fixed to the cart side cylindrical frame in a state of being inserted into an end portion of the cart side cylindrical frame provided on the side surface of the cart base. Yes.
The invention of claim 2 is characterized in that a stopper plate is fixed to the bottom surface of the rod holding cylinder.
The invention of claim 3 is characterized in that the shape of the bar insertion portion in plan view is formed in a leaf shape, and the shape of the hand bar is circular.
The invention of claim 4 is characterized in that a buffer corner cover is attached to the outside of the hand bar holding member.

In the transport cart according to claim 1, the hand bar holding member can be firmly attached to the corner portion of the main body of the carriage and the hand bar holding member provided at the corner portion of the main body of the cart collides with an installation in the building. Has a superior effect of preventing the hand bar holding member from being deformed or broken.
In addition to the above-described excellent effects, the transport cart according to claim 2 has an excellent effect that the hand bar can be erected reliably.
In addition to the above-mentioned excellent effects, the transport cart according to claim 3 has an excellent effect that the hand bar is difficult to rotate in the circumferential direction without separately preparing a fixing member for fixing the hand bar.
In addition to the above-described excellent effects, the transport cart according to claim 4 has an excellent effect of being able to buffer an impact acting on the hand bar holding member.

It is a whole perspective view of the conveyance cart of an example. It is a partially expanded perspective view of the corner part of the trolley | bogie main body of the conveyance trolley | bogie of an Example. It is a partially expanded side view of the corner part of the trolley | bogie main body of the conveyance trolley | bogie of an Example. It is a partially expanded cross-sectional view of the corner portion of the main body of the carriage of the embodiment. It is a whole perspective view of the hand stick holding member of the conveyance cart of an example. It is a top view of the hand stick holding member of the conveyance truck of an example. It is a side view which shows the use condition of the conveyance trolley | bogie of an Example.

  Examples of the best mode for carrying out the invention will be described below.

  1 to 7 show an embodiment of a transport cart according to the present invention.

As shown in FIG. 1, a cart base 14 constituting a cart main body 12 having a rectangular shape in plan view of a transport cart 10 of the embodiment is formed in a rectangular shape in plan view with an appropriate material such as metal, and the cart base 14 has four side surfaces. have.

A plurality of caster support members 16 (see FIG. 3) are provided on the lower surface of the carriage base 14. A caster 18 is rotatably attached to each of the caster support members 16.
Therefore, the cart 10 can be easily moved by rotating the casters 18.

In this embodiment, the first side surface 14A as the side surface of the cart base 14 having a rectangular shape in plan view and the second side surface 14B as the side surface are formed to face each other, and the third side surface 14C as the side surface and the fourth side surface 14D as the side surface. Are formed opposite to each other. In this embodiment, the first side surface 14A and the second side surface 14B are formed longer than the third side surface 14C and the fourth side surface 14D.

A first cart side cylindrical frame 20 as a cart side cylindrical frame is attached to the first side surface 14A of the cart base 14, and a second cart as a cart side cylindrical frame is attached to the second side surface 14B of the cart base 14. A carriage side cylindrical frame 22 is attached, and a third carriage side cylindrical frame 24 as a carriage side cylinder frame is attached to the third side face 14C of the carriage base 14, and is attached to the fourth side face 14D of the carriage base 14. Is attached with a fourth bogie side tubular frame 26 as a bogie side tubular frame.

The first cart side cylindrical frame 20, the second cart side cylindrical frame 22, the third cart side cylindrical frame 24, and the fourth cart side cylindrical frame 26 together with the cart base 14 constitute the cart body 12. Yes.

In this embodiment, the first cart side cylindrical frame 20, the second cart side cylindrical frame 22, the third cart side cylindrical frame 24, and the fourth cart side cylindrical frame 26 are aluminum square cylinders. Is formed.

One end and the other end of the first cart side cylindrical frame 20, one end and the other end of the second cart side cylindrical frame 22, one end and the other end of the third cart side cylindrical frame 24, Two screw holes are formed in each of the one end portion and the other end portion of the four-cart side surface tubular frame 26. In FIG. 4, only screw holes 22A formed in the second cart side tubular frame 22 and screw holes 24A formed in the third cart side tubular frame 24 are shown.

Iron push bar holding members 30 are respectively attached to the four corners of the cart body 12.

As shown in FIGS. 5 and 6, the bar holding cylinder 32 constituting the push bar holding member 30 includes an outer cylinder forming piece 34 having an arc shape in plan view and an inner cylinder forming piece 36 having an arc shape in plan view. The one end of the outer cylinder forming piece 34 and one end of the inner cylinder forming piece 36, the other end of the outer cylinder forming piece 34, and the other end of the inner cylinder forming piece 36 are welded to each other. It is welded to form a leaf shape in plan view.

As shown in FIG. 6, a bar insertion portion 38 formed in the shape of a leaf in a plan view is formed in the bar holding cylinder 32 so as to penetrate in the vertical direction, and a hand bar 40 (imaginary line) formed of a metal pipe. The lower part of (indicated by) is inserted.

The outer diameter of the hand bar 40 is set slightly smaller than the maximum distance between the outer cylinder forming piece 34 and the inner cylinder forming piece 36 (dimension A in FIG. 6). Thus, the lower part of the hand bar 40 can be smoothly inserted into the bar insertion part 38, but a part of the outer peripheral surface of the hand bar 40 inserted into the bar insertion part 38 is in close contact with the inner surface of the bar holding cylinder 32. Therefore, the push bar 40 is difficult to rotate in the circumferential direction.

A stopper plate 42 is fixed to the lower end surface of the rod holding cylinder 32 by welding. Accordingly, when the lower portion of the hand bar 40 is inserted into the bar insertion portion 38, the lower end surface of the hand bar 40 comes into contact with the stopper plate 42, and further insertion is prevented and the hand bar 40 is erected. .

As shown in FIGS. 5 and 6, a frame insertion first plate 44 is provided at one end of the rod holding cylinder 32, and a frame insertion second plate 46 is provided at the other end of the rod holding cylinder 32. Each is welded and fixed.
The frame insertion first plate 44 and the frame insertion second plate 46 together with the bar holding cylinder 32 constitute the hand bar holding member 30.

The internal angle (arrow B in FIG. 6) of the first frame insertion plate 44 and the second frame insertion plate 46 is set to 90 °.

The first frame insertion plate 44 and the second frame insertion plate 46 are the first carriage side cylindrical frame 20, the second carriage side cylinder frame 22, the third carriage side cylinder frame 24, and the fourth carriage side cylinder. It can be inserted into one end and the other end of the frame 26. FIG. 4 shows a frame insertion first plate 44 inserted into the third cart side cylindrical frame 24 and a frame insertion second plate 46 inserted into the second cart side cylindrical frame 22.

As shown in FIG. 5, two screw holes 44 </ b> A are formed through the frame insertion first plate 44, and two screw holes 46 </ b> A are formed through the frame insertion second plate 46.

The rod holding cylinder 32, the frame insertion first plate 44, and the frame insertion second plate 46 constituting the hand bar holding member 30 are made of metal iron.
Accordingly, since the hand bar holding member 30 is made of iron, the strength of the hand bar holding member 30 is high.

As shown in FIG. 1, a buffer corner cover 50 made of synthetic resin is attached to the outside of the hand bar holding member 30 provided at the corner portion of the cart body 12.
As shown in FIG. 2, the buffer corner cover 50 is integrally formed in a substantially L shape in plan view.

As shown in FIGS. 3 and 4, the buffer corner cover 50 is formed with two screw holes 50 </ b> A penetrating left and right. These screw holes 50 </ b> A include one end and the other end of the first cart side tubular frame 20, one end and the other end of the second cart side tubular frame 22, and one end of the third cart side tubular frame 24. The other end, a screw hole (not shown) formed in one end and the other end of the fourth cart side tubular frame 26, a screw hole 44A in the frame insertion first plate 44, the frame insertion second It corresponds to the screw hole 46A of the plate 46.

Therefore, if the hand rod holding member 30 provided between the second cart side cylindrical frame 22 and the third cart side cylindrical frame 24 is taken as an example, the frame of the rod holding cylinder 32 as shown in FIG. With the insertion first plate 44 inserted into one end of the third cart side cylindrical frame 24 and the frame insertion second plate 46 inserted into one end of the second cart side cylindrical frame 22, the buffer corner cover 50 is When arranged, the screw hole 22A formed at one end of the second cart side cylindrical frame 22, the screw hole 24A formed at one end of the third cart side cylindrical frame 24, and the frame insertion first plate 44 The screw hole 44A, the screw hole 46A of the frame insertion second plate 46, and the screw hole 50A of the buffer corner cover 50 correspond to each other.
Accordingly, the hand bar holding member 30 can be fixed between the second cart side cylindrical frame 22 and the third cart side cylindrical frame 24 by screwing in the screws 54, and the buffer corner is provided outside the bar holding member 30. A cover 50 can be attached.

Moreover, the frame insertion first plate 44 of the rod holding cylinder 32 is inserted into one end portion of the third cart side cylindrical frame 24, and the frame insertion second plate 46 is inserted into one end portion of the second cart side cylindrical frame 22. In this state, the push bar holding member 30 is firmly attached between the second cart side cylindrical frame 22 and the third cart side cylindrical frame 24, and the cart main body 12 is moved in the vertical direction and left / right direction. It is possible to cope with vibrations in the direction.

Thereby, the hand bar holding member 30 can be firmly attached to the corner portion of the carriage main body 12.

Next, the operation of the transport cart 10 according to the embodiment will be described.

When the hand bar 40 is erected on the cart body 12 of the carriage 10, the hand bar 40 is inserted into the bar insertion portion 38 of the bar holding cylinder 32 of the hand bar holding member 30 provided at the corner of the car body 12. Insert the bottom. Since the lower end surface of the hand bar 40 abuts against the stopper plate 42, the hand bar 40 can be easily erected on the hand bar holding member 30.

As shown in FIG. 7, when transporting a large number of steel materials 1 as a transported object using a transport cart 10, the steel materials 1 are placed on a cart body 12. If the length of the steel material 1 (in the vertical direction in FIG. 7) is longer than the width of the cart body 12 (in the vertical direction in FIG. 7), the steel material 1 is pushed by the hand bar 40 in the longitudinal direction of the cart body 12 (FIG. 7). Since the movement in the left and right direction) is prevented, the steel material 1 can prevent the collapsing of the cart body 12 in the front-rear direction (left and right direction in FIG. 7) even when the steel material 1 is placed in a highly stacked state. Many steel materials 1 can be transported.

When the transport cart 10 is moved, the transport cart 10 can be moved and transport the steel material 1 easily by gripping and pushing the hand bar 40 erected at the corner portion of the cart body 12.
As shown in FIG. 6, a part of the outer peripheral surface of the hand bar 40 is in close contact with the inner surface of the bar holding cylinder 32, so that the inserted hand bar 40 is difficult to rotate in the circumferential direction.
Accordingly, the hand bar 40 can be erected in a stable state without separately preparing a fixing means for fixing the hand bar 40 to the bar holding cylinder 32, and the hand bar 40 is difficult to rotate in the circumferential direction. When the hand 40 is gripped, the operator's force is not dispersed, and the transport cart 10 can be smoothly moved to perform the transport operation efficiently.

When the steel truck 1 is being transported by the transport cart 10, even if the corner portion of the cart body 12 of the transport cart 10 strongly collides with an installed object or the like in the building, it is provided at the corner portion of the cart body 12. Since the hand bar holding member 30 is made of iron and has high strength, the hand bar holding member 30 can be prevented from being deformed or damaged.

Moreover, in this embodiment, since the buffer corner cover 50 is provided outside the hand bar holding member 30, even if the corner portion of the carriage body 12 of the transport carriage 10 collides with an installation in the building, the buffer corner is first provided. Since the cover 50 cushions the impact, it is possible to reduce damage acting on the hand bar holding member 30.

The frame insertion first plate 44 and the frame insertion second plate 46 of the hand bar holding member 30 are the first cart side cylindrical frame 20, the second cart side cylindrical frame 22, the third cart side cylinder. Since the cylindrical frame 24 and the fourth cart side tubular frame 26 are fixed in a state of being inserted, the cart main body 12 even if the corner portion of the cart main body 12 of the transport cart 10 strongly collides with an installation or the like in the building. The push bar holding member 30 can be reliably prevented from coming off in response to the vertical and horizontal impacts.

Further, since the hand bar holding member 30 is made of iron, the steel bar 1 transported by the transport cart 10 is extremely heavy, and even if a large force acts on the bar holding cylinder 32 through the hand bar 40 during transport, the hand bar holding member 30 30 deformation and breakage can be prevented.

Therefore, since the transport cart 10 of the embodiment has a high strength of the hand bar holding member 30, the service life of the hand bar holding member 30 can be further increased. As a result, the replacement span of the transport cart 10 can be lengthened. Economical.

In the transport cart 10 according to the embodiment, a shock absorbing corner cover 50 is provided at the corner of the cart main body 12 so as to buffer the impact acting on the hand bar holding member 30. Of course, 50 may not be provided.

  In the actual embodiment, the hand bar 40 is formed of a cylindrical pipe, but the hand bar 40 may of course be formed of a column bar.

In the embodiment, the case where the hand bar 40 is erected on all the hand bar holding members 30 at the corners of the cart body 12 is shown. However, the hand bar 40 needs to be erected at all corners of the cart body 12. Of course, the carriage 10 may be used with the hand bar 40 standing on the hand bar holding member 30 as needed.

  Moreover, although the cart body 12 having a rectangular shape in plan view is shown in the embodiment, the cart body 12 is not limited to a rectangular shape in plan view as long as the cart body 12 is rectangular in plan view. For example, the cart body 12 is square in plan view. Of course, it may be formed.

  In the embodiment, one end and the other end of the first cart side cylindrical frame 20, one end and the other end of the second cart side cylindrical frame 22, one end of the third cart side cylindrical frame 24, and the like. Two screw holes are provided at one end and the other end of the end, the fourth cart side cylindrical frame 26, two screw holes 44A are provided in the frame insertion first plate 44, and screw holes 46A are provided in the frame insertion second plate 46. 2 and two screw holes 50A are formed on the left and right sides of the buffer corner cover 50. One end and the other end of the first bogie side tubular frame 20, the second bogie side tubular frame 22, one end and the other end of the third cart side tubular frame 24, screw holes formed at one end and the other end of the fourth cart side tubular frame 26, Screw hole 44A formed in one plate 44, frame Screw holes 46A formed in the inserted second plate 46, the number of screw holes 50A formed in the left and right cushioning corner cover 50 is not limited to the embodiment as a matter of course.

DESCRIPTION OF SYMBOLS 10 Carriage trolley | bogie 12 trolley | bogie main body 14 trolley | base 14A 1st side surface 14B 2nd side surface 14C 3rd side surface 14D 4th side surface 16 Caster support member 18 Caster 20 1st trolley side surface cylindrical frame 22 2nd trolley side surface cylindrical frame 24 3rd Carriage side cylindrical frame 26 Fourth carriage side cylindrical frame 30 Hand bar holding member 32 Bar holding cylinder 34 Outer cylinder forming piece 36 Inner cylinder forming piece 38 Bar insertion part 40 Hand bar 42 Stopper plate 44 Frame insertion first Plate 46 Frame insertion second plate 50 Buffer corner cover 54 Screw

Claims (4)

A cart base formed in a rectangular shape in plan view, four side surfaces formed on the cart base, and a cart side cylindrical frame provided on each of these four side surfaces and constituting the cart body together with the cart base An iron hand bar holding member that is provided at a corner portion of the carriage main body and holds the hand bar upright, and is formed on the bar holding cylinder of the hand bar holding member in the vertical direction, and the hand bar A state in which the lower portion is inserted in a close contact state, and is inserted into an end portion of a cylindrical side frame of a cart provided on the side surface of the cart base while protruding from one side of the rod holding cylinder. A first frame insertion plate fixed to the carriage side cylindrical frame, and the other side of the rod holding cylinder projecting in a direction orthogonal to the first frame insertion plate and the carriage base Transport carriage, characterized by comprising a frame inserted second plate fixed with carriage side cylindrical frame while being inserted into the ends of the carriage side cylindrical frame provided on the side surface, the. 2. The transport cart according to claim 1, wherein a stopper plate is fixed to a bottom surface of the rod holding cylinder. 3. The transport cart according to claim 1, wherein the shape of the bar insertion portion in plan view is formed in a leaf shape, and the shape of the hand bar is circular. 4. 4. The transport cart according to claim 1, wherein a buffer corner cover is attached to the outside of the hand bar holding member.

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