JPH09193807A - Handcart - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a handcart of very simple constitution which can reduce an entire weight by forming an entire structure like a bivalve and place not only a big article projected outward but also even a small article surely and be used easily and be folded to a small figure like an attache case if the cart is empty. SOLUTION: A handcart gas a cart main body 10 with a handle 50 which can be telescoped or folded, a moving means with wheels 30 supported by the lower edge of this cart main body 10 and both ends of an axle and a stand main body 20 which is nearly same bigness as the cart main body 10 and can be folded for the cart main body 10 by the pivot of its lower edge. Wheel covers 14 for covering the upper part of respective wheels 30 are formed integrally on both side lower part of the cart main body 10 and also a protection frame 40 is provided foldably on the inside upper part of the cart main body 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manually propelled vehicle, and more particularly to a hand cart having a single shaft for supporting traveling wheels.

[0002]

2. Description of the Related Art Hand carts can carry a lot of goods if a person carrying a load on the cart can carry them very easily. Things are becoming popular. However, even with such a convenient hand cart, in order to use it, it must be carried to the place of use, and it is desired that it be as compact as possible in the so-called "empty" state. .

Therefore, for example, Japanese Patent Laid-Open No. 7-205816
According to the publication, "a folding container for carrying" which can be made suitable for carrying both when folded and when used.
Has been proposed. The "portable collapsible container" described in Japanese Patent Application Laid-Open No. 7-205816 is, as described in FIG. 11 and the summary of the above-mentioned publication, "a rectangular outer peripheral wall 1 and a bottom wall 2 having four sides. Is provided with a handle 4 projecting upward from a container body 3 which is foldable into a flat shape, and a caster 5 is provided at the bottom of the container body 3. The outer peripheral walls 1 of the four surfaces face each other. The outer surface of the outer peripheral wall 1 can be bent freely, and when the outer surface of the outer peripheral wall 1 is in the folded state of the container body 3,
It may be housed inside another outer peripheral wall 1. Further, it is preferable that the caster 5 is provided at the lower end portion of one outer peripheral wall 1. Further, it is more preferable that the caster 5 has leg portions 14 projecting downward at the lower end portion of the outer peripheral wall 1 on the handle 4 side. It is suitable for carrying even when used as a container in the folded state, and when used as a container, the bottom wall does not become dirty and the wheelbarrow can be used as it is. It can be pushed and carried like this.

However, this conventional folding container is literally a container and can carry only a small volume as shown in FIG.
There are some limits on how to use it.
In addition, since this folding container requires the outer peripheral wall 1 and the bottom wall 2 which have two surfaces whose central portion can be bent, the extra weight is required for the outer peripheral wall 1 and the bottom wall 2. Therefore, even if this is in the "empty" state, a large force is required to manually propel it.

Therefore, the present inventor has conducted various studies as to how to make the hand cart of this type lighter and more convenient, and as a result of various studies, the present invention Was completed.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above situation of a hand cart, and the problem to be solved is to further reduce the weight of the hand cart and improve the usability. .

That is, the object of the present invention is to
By making the entire structure like a bivalve, the overall weight can be reduced, and it is possible to securely mount small things as well as large ones that pop out to the outside, which is easy to use, Moreover, it is to provide a hand cart with a very simple structure that can be made small like an attache case when it is empty.

[0008]

Means for Solving the Problems In order to solve the above problems, the means adopted by the present invention will be described with reference to the symbols used in the following description of the embodiments. Cart body 1 having a foldable handle 50
0 and the axle 3 supported by the lower end edge of the cart body 10.
A moving means having wheels 30 supported at both ends of the cart 1, and a stand body 20 having substantially the same size as the cart body 10 and foldable with respect to the cart body 10 by a pivot 12 at the lower end edge thereof. In the hand cart 100 having the wheel main body 10, a wheel cover 14 that covers the upper portions of the wheels 30 is integrally formed on the lower portions of both side surfaces of the cart main body 10.
The hand cart 100 "is characterized in that a protective frame 40 is foldably provided on the inner upper part of the hand cart 100".

That is, the hand cart 10 according to the present invention.
Reference numeral 0 denotes the cart body 10 and the base body 20 which can be opened and closed just like a bivalve by the pivots 12 provided at the lower ends of the cart body 10. If the base body 20 is folded on the cart body 10, As shown in (a) of item 1, it has a shape that can be carried just like an attache case. Of course, in the state of (a) of FIG. 1, the handle 50 provided on the cart main body 10 is stored (when it is extendable) or folded (when it is foldable), and its upper end is the handle. It will be like this. In addition, this hand cart 100
Has a wheel 30 at its lower edge and is exposed from the lower side of the wheel cover 14. Therefore, if the handle 50 is pulled out or unfolded, the whole can be lightly carried. Is.

This hand cart 100 is shown in FIG.
By operating the opening lever 24,
The table body 20 can be unfolded from the cart body 10, and the table body 20 can be placed on the table body 20 as shown in FIG.
As shown in, you can load a large baggage. Further, if the protection frame 40 is unfolded from the cart body 10, as shown in FIG. 2A, a relatively small load can be mounted on the base body 20 in a state surrounded by the protection frame 40. You can do it. In the hand cart 100 of the following embodiment, the opening of the storage net 60 is connected to the protection frame 40, and the opening of the storage net 60 opens upward at the same time as the development of the protection frame 40. Therefore, a small object is put in the storage net 60 to prevent the object from rolling.

When the base body 20 is expanded with respect to the cart body 10, as shown in FIGS. 3 and 4,
Since the table body 20 is connected to the cart body 10 side by the connection link 23, the table body 20 can be mounted on the table body 20 even when a luggage is placed on the table body 20 or when the cart body 10 is tilted by the handle 50. The deployment angle with respect to the cart body 10 is maintained as shown in FIGS. In addition,
One end of the developed protective frame 40 is the cart body 10
As shown in (b) and (c) of FIG. 8, the other end of each frame receiver 41 connected to the side is engaged with the engaged portion 42 of the deployed protective frame 40 to be deployed. Protection frame 40
Is to maintain its expanded state as shown in FIGS. 3 and 4.

As shown in FIGS. 1 to 3, each wheel 30 is covered with a wheel cover 14 integral with the cart body 10 at the upper side thereof, so that the hand cart 1
When transporting 00 using the wheels 30, the base body 2
Nothing above 0 is caught in each wheel 30. Further, even if the wheel 30 rolls in a place wet with water or a muddy place, dirty water and the like are blocked by the wheel cover 14, so that it does not splash on the stand body 20 or the cart body 10. The hand cart 100, baggage, or a person carrying the hand cart 100 does not get dirty. Also, this wheel 30
As shown in FIGS. 9 and 10, the wheel cover 14 for the vehicle has nothing to do with the movement of the base body 20 with respect to the cart body 10. Therefore, the base body 20 can be smoothly opened and closed with respect to the cart body 10. Is something that can be done.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a hand cart 100 according to the present invention will be described in accordance with an embodiment shown in the drawings. FIG. 1 shows the hand cart 100 according to the present invention. A perspective view is shown with the handle 50 retracted and folded. This hand cart 100, as shown in FIG.
Of course, the upper end of the handle 50 can be carried as a handle, and the handle 50 can be extended as shown in FIG. 2 and the wheels 30 can be carried on the ground.

As shown in FIGS. 3 and 4, the cart body 10 is a substantially box-shaped member integrally molded of synthetic resin, and accommodates a protective frame 40, which will be described later, and a storage net 60 attached thereto. In addition, the fitting frame portion 21 on the base body 20 side can be stored. Further, since the folding or retractable handle 50 is attached to the cart body 10, the cart body 1 is
0 is provided integrally with or separately from 0 and is attached to the cart body 10 side by screws or the like, and two upper and lower parallel handle storage portions 15 are provided. As shown in (a) and FIG.
A string storage portion 16 for storing the string 70 is formed.

The string 70 is not essential as a constituent of the present invention, but if the string 70 is provided,
For example, as shown in FIG. 2B, it is needless to say that the luggage can be stabilized by using it when carrying luggage or the like that largely protrudes from the table body 20. In order to store the string 70 so as not to get in the way, the string storage portion 16 between the two handle storage portions 15 described above is most suitable.

Since the base body 20 has to be openably and closably connected to the cart body 10 accommodating the string 70, the lower end edge of the cart body 10 is shown in FIGS.
As shown in FIG. 7, the left and right pivot portions 11 are integrally formed. As shown in FIG. 6, in particular, the pivots 12, which are commonly inserted and fixed to the pivotally attached portions 22 on the base body 20 side, are inserted into these pivotal portions 11, respectively. With these pivots 12, the cart body 10
The base body 20 to be described later is pivotally attached thereto.

At the bottom edge of the cart body 10, a pair of wheels 30 and an axle 31 supporting the wheels 30 at both ends are provided.
The moving means including the moving means is provided. The cart main body 1 supports the axle 31 that constitutes the moving means.
The car bearing 13 is integrally formed at the lower end of 0. The pair of wheels 30 may be integrally (fixed) provided at both ends of the axle 31, or may be rotatable with respect to both ends of the axle 31.

Each car bearing 13 supports the hand cart 100 at a position different from that of each pivot shaft 12, as shown in FIG.
As shown in Fig. 7, the cart body 10 projects downward from the lower surface thereof, and the hole for supporting the axle 31 is located below each pivot shaft 12, as shown in Fig. 7. It will be. The wheel cover 1 for enclosing the wheel 30 is provided on the outer side of the car bearings 13.
4 is formed integrally with the lower end surface of the cart body 10.

As shown in FIGS. 3 to 7, each wheel cover 14 exposes the outer surface and the lower portion of each wheel 30 supported on both ends of the axle 31, and is like a substantially round lid. It is formed into a unique shape. In addition, this wheel cover 1
A part of the base body 20 is slidably contacted to the outer surface of No. 4, but if it is desired to prevent a gap in this slidable contact, the center of each circular wheel cover 14 should be the center of each pivot 12. It may be formed so that Of course, as shown in the embodiment of FIGS. 9 and 10, when the central portion of the axle 31 is opened so that the pivot 12 is arranged between them, and the centers of the pivot 12 and the axle 31 are aligned with each other, Each wheel cover 1
4 may be circular with the axle 31 as the center.

The base main body 20 which is opened and closed with respect to the cart main body 10 as described above is integrally formed of synthetic resin as in the case of the cart main body 10, as shown in FIG.
As also shown in the above, the fitting frame portion 21 that fits inside the cart body 10 such as a box lid is integrally provided on the inner surface thereof. The fitting frame portion 21 is for ensuring integration with the cart body 10 when the base body 20 is fitted and closed with respect to the cart body 10 as shown in FIG. Further, in the hand cart 100 of this embodiment, by closing the base body 20 with respect to the cart body 10, a storage space is formed to some extent, that is, it can be used as an attache case. The fitting frame portion 21 also serves as a sealing member in that case.

Since the base body 20 is pivotally attached to the cart body 10, the base body 20 is pivotally attached to the lower end edge thereof for inserting / fixing the pivot shafts 12 as shown in FIG. The part 22 is integrally formed. Of course, each of these pivotally-attached portions 22 is located outside the fitting frame portion 21. In addition, in order to maintain the position when the base body 20 is opened, a locking portion projecting to the outside of each pivotal portion 22 (the right portion in FIG. 6) is integrally formed. The locking portion may be brought into contact with the lower end surface of the cart body 10. In such a case, the connecting link 23 described below is not always necessary.

In the hand cart 100 of the present embodiment, when the base body 20 is opened, a space between the fitting frame portion 21 of the base body 20 and the cart body 10 is held in order to securely hold the open position. The pair of left and right connecting links 23 are used for connection. As shown in FIG. 3, each connecting link 23 is formed so as to be capable of being folded in two, and each end thereof is rotatably connected to the fitting frame 21 and the cart body 10 side. As a result, the base body 20 when opened is firmly held with respect to the cart body 10 by the fully extended connecting links 23, and even if a load is placed on the base body 20, for example, ( The conditions shown in (a) and (b) will be reliably maintained. Of course, when closing the table body 20, the center of each connecting link 23 may be pushed downward and the table body 20 may be brought closer to the cart body 10 side while folding them.

In the base body 20 of the present embodiment, an opening lever 24 is formed at the edge portion on the side opposite to each pivotally attached portion 22, and the inner end of the opening lever 24 is located on the cart body 10 side. It is designed to engage. That is, the base body 2
When 0 is closed to the cart body 10, the opening lever 24
The inner end of the cart is automatically engaged with the cart body 10 side to prevent the careless opening between the two. If the release lever 24 is pressed from this state, the engagement is released this time and The main body 20 can be opened. Further, as shown in FIG. 1, for example, a pair of left and right support legs 25 are provided on the outer surface of the base body 20 so as to be able to be raised and stored.
Each of the support legs 25 serves as a stabilizer when the hand cart 100 is used as shown in FIG. 2 by raising it.

Further, since the platform main body 20 is to mount a load on the upper surface when it is opened, it must have a predetermined rigidity, and this rigidity is the above-mentioned fitting. It is sufficiently secured by the frame portion 21. However, in the base body 20 of the present embodiment, (a) in FIG.
By forming irregularities on the base body 20 itself as shown in FIG. 2 or by positively forming the reinforcing ribs 26 on the inner side surface as shown in FIG. The rigidity is made even more sufficient.

Further, the hand cart 100 of this embodiment.
In FIG. 2, for example, as shown in FIG. 2A, a protective frame 40 is provided to protect the long luggage when it is stored upright. The protective frame 40 is to be housed in the opening edge of the cart body 10 and in a portion located deeper than the width of the fitting frame portion 21 on the base body 20 side. It is rotatably supported by the side protection frame pivoting portion 17.

On the other hand, as shown in FIG. 3, a pair of left and right frame receivers 41 are rotatably provided at the opening edges of the cart body 10 located below the respective protection frame pivoting portions 17. It is pivotally supported. Each of the frame receivers 41 supports the raised protection frame 40, and an engaging portion 42 is provided at the tip thereof, as shown in FIG. Each of these engaging portions 42 is shown in FIG.
It is to be engaged with the engagement hole formed as shown in (a) of (a), and the protection frame 40 is supported by performing the operations shown in (b) to (c) of FIG. It is something to do.

Regarding such a protective frame 40, assuming that it may not be possible to sufficiently hold the luggage by itself, as shown in (b) of FIG. 1 and (a) of FIG. To
The upper opening edge of the bag-shaped storage net 60 is connected. That is, in the hand cart 100 of this embodiment, when the protective frame 40 is opened as shown in FIG. 3, the opening of the storage net 60 is automatically opened as shown in FIG. It is done. Of course, if the protective frame 40 is folded to the cart body 10 side, the storage net 60 is automatically stored on the cart body 10 side as shown in FIG.

9 and 10, the hand cart 100 is shown.
There is shown an example in which the axes of the pivot 12 that pivotally supports the base body 20 and the axle 31 that supports the wheels 30 at both ends are aligned. In this case, although not shown, the pivots 12 that pivotally support the hand cart 100 and the base body 20 are arranged between two short axles 31 that respectively support the wheels 30. Each pivot 1
2 and the shaft center of the axle 31 are made to coincide with each other, the wheel cover 14 itself is, for example, a circular shape centering on the axle 31. As a result, the base body 2
When opening and closing 0 with respect to the cart body 10, as shown in FIG.
As shown in (a) of FIG. 10, no gap is formed between the base body 20 side and the wheel cover 14 in any case or in the middle thereof so as to sandwich a part of the luggage. . Further, in comparison with the embodiment shown in FIG.
As shown in (a) of FIG. 9, the thickness of the base body 20 and the thickness of the cart body 10 can be the same, so that the design of the entire hand cart 100 can be made stable. The base body 2 on which the luggage should be placed
Sufficient rigidity on the 0 side can be more easily achieved.

[0029]

As described in detail above, in the present invention,
As illustrated in the above-described embodiment, "a moving means having a cart body 10 having a handle 50 that can be expanded or contracted or folded, and wheels 30 supported by a lower end edge of the cart body 10 and supported by both ends of an axle 31. And the cart body 10
A hand cart 100 having substantially the same size as that of the cart main body 10 that is foldable with respect to the cart main body 10 by a pivot 12 at a lower end edge thereof. 30 is integrally formed with the wheel cover 14 that covers the upper portion of the cart 30, and the protective frame 40 is provided on the inner upper portion of the cart body 10 in a foldable manner. " By making it like a bivalve, it is possible to reduce the overall weight, and it is possible to securely place not only a large object that jumps out but also a small object, which is convenient and easy to use. In some cases, a hand cart that can be made small like an attache case can be provided with a very simple structure.

[Brief description of the drawings]

1 shows a hand cart according to the present invention,
(A) is a perspective view showing a state when the stand body is fitted to the cart body, and (B) is a perspective view showing a state when the stand body is opened.

FIG. 2 shows a hand cart when the same hand cart is used, where (a) is a perspective view when the protection frame and the storage net are opened above the open base body, and (b) is It is a perspective view when a load is put on the open stand main body and this is fixed with a string.

FIG. 3 is a partial perspective view of the hand cart when the base body and the protection frame are opened with respect to the cart body.

FIG. 4 is a side view of the state of FIG. 3 when viewed from the left side.

5 is an enlarged front view showing the hand cart in the state shown in FIG. 1, with a rear view simultaneously shown on the right side.

FIG. 6 is a partially cutaway exploded perspective view showing an example of pivotal connection between the cart body and the base body in the hand cart.

7 is a partially enlarged cross-sectional view showing a positional relationship between a pivot, a wheel cover and an axle when the one shown in FIG. 6 is assembled.

8A and 8B are a partial perspective view and a partially enlarged cross-sectional view showing a method of connecting protective frames adopted in the hand cart of the embodiment.

FIG. 9 shows an embodiment of a hand cart in which the axle that pivotally supports the cart body and the base body and the axle of the wheel are concentric with each other. (A) shows that the base body is closed with respect to the cart body. FIG. 3B is a partial side view of the same, and FIG.

FIG. 10 shows a state when the base body is opened in the one shown in FIG. 9, (a) is a partial side view, and (b) is
FIG. 4 is a partial perspective view of the same.

FIG. 11 is a perspective view showing a conventional portable folding container.

[Explanation of symbols]

 100 hand cart 10 cart main body 11 pivot part 12 pivot shaft 13 car bearing 14 wheel cover 15 handle storage part 20 main body 21 fitting frame part 22 pivot attachment part 23 connection link 24 opening lever 25 supporting leg 26 reinforcing rib 30 wheel 31 axle 40 Protective frame 41 Frame receiver 42 Engagement part 50 Handle 60 Storage net 70 String

Claims (1)

[Claims] 1. A cart main body having a handle that can be expanded and contracted or folded, a moving means having wheels supported by a lower end edge of the cart main body and supported by both ends of an axle, and a substantially same size as the cart main body. A wheel cart having a stand body that is foldable with respect to the cart body by a pivot of a lower end edge of the cart body, the wheel cover covering upper portions of the respective wheels at lower portions of both side surfaces of the cart body. And a protective frame foldably provided on the inside upper part of the cart body.