JPH05213204A - Cart for hand baggage - Google Patents

Abstract

PURPOSE:To provide a small and light cart for a hand baggage which can be smoothly pulled up and down over a step part at a station and a building, etc., in an ordinary walking posture. CONSTITUTION:Lateral support frames 17 and 18 are protruded from the upper part of the main handle arm of a cart for a hand baggage, having a handle arm and a cargo support frame rising from and falling to the handle arm, toward a rear being the opposite side of the cargo support frame. Oblique support frames 23 and 24 are extended from a position close to the rear end of the lateral support frame toward a wheel axle 5. The lower parts 37 and 38 of the oblique support frame are positioned in the vicinity of a virtual line 0-0 for interconnecting the rear end parts of the peripheral surfaces of left and right wheels 3 and 4. A guide part in an inverted conical shape is composed of the lateral support frame and the oblique support frame and the inverted conical part is made foldable.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a small cart for carrying baggage such as a travel bag.

[0002]

2. Description of the Related Art As a small cart for carrying baggage such as a travel bag, a structure such as a carrier shown in Japanese Utility Model Publication No. 3-40693 is known. Each stage has the inconvenience of having to lift or lower the carrier.

In order to deal with the inconvenience described above, a sliding device such as that shown in Japanese Utility Model Publication No. 52-27804, a caterpillar type, or a three-wheel configuration in which each of the left and right wheels is arranged on a triangular point. Things are proposed.

In the sliding device disclosed in Japanese Utility Model Publication No. 52-27804, the body of the sliding foot must be bent so that the body of the sliding foot must be bent so that the handle of a small cart is pulled or pushed. There is a problem that it is easy to get tired,
Caterpillars and those with three wheels are large and not suitable for traveling.

It is also proposed to extend a lateral support frame rearward from the vicinity of the axle and extend an oblique support frame from the rear end toward the handle main pillar. The purpose is to reinforce the attachment part with the main pillar of the handle, and it is not possible to absorb the step when climbing the stairs.

[0006]

DISCLOSURE OF THE INVENTION The present invention is small in size and can be carried during travel, and when the stairs of a station, a building, etc. are elevated and lowered, the ridges of the stairs are slid in a normal walking posture. An object of the present invention is to provide a baggage cart that has a simple structure that can be pulled up and down and that is relatively lightweight.

[0007]

In order to solve the above-mentioned problems, according to the invention of claim 1, the left and right main handle arms are provided with axles of both left and right wheels at the rear portion of the load receiving frame. A horizontal support frame extends backward from the upper part of the main handle arm in the opposite direction to the load receiving frame, and the length of the extension is determined by the distance between the imaginary line connecting the rear ends of the left and right wheels and the axle. It is set to be long, and a diagonal support frame is extended from the rear end portion of the lateral support frame toward the axle direction and is supported by a fixing member on the load receiving frame side,
The lower portion of the oblique support frame is located near the imaginary line connecting the rear end portions of the peripheral surfaces of the left and right wheels.

According to the second aspect of the invention, in order to be able to fold it into a small size when it is not used, the frame assembly consisting of the lateral support frame and the oblique support frame is foldable with respect to the left and right main handle arms. Added configuration.

Further, in the invention of claim 3, as a folding structure, the connecting portion of the horizontal supporting frame and the oblique supporting frame is rotatable about a horizontal axis orthogonal to the horizontal supporting frame, and the horizontal supporting frame and the main supporting frame are connected. One of the support portions of the handle arm and the support portion of the oblique support frame and the fixing member on the load receiving frame side is rotatable about an axis parallel to the horizontal axis. ,
The other support part is detachable.

[0010]

According to the first aspect of the present invention, the left and right main handle arms project from the upper part toward the rear, and the projecting length is the distance between the virtual line connecting the rear end portions of the peripheral surfaces of the left and right wheels and the axle. It is set longer, the diagonal support frame is extended from the rear end portion of the horizontal support frame in the axial direction, and is supported by the fixing member on the load receiving frame side. Since it is located near the imaginary line that connects the rear end of the wheel's peripheral surface, when the stairs are moved up and down, the handle is held in a normal walking posture and the cart is tilted. Since the contact is made with the section and the contact is continuously performed, the cart can be pulled up and down without impact.

According to the inventions of claims 2 and 3,
Since the frame body consisting of the lateral support frame and the oblique support frame that protrude in the shape of an inverted pyramid facing the axial direction from the upper part of the main handle arm is folded flat, it can be made into a compact form when not in use, and can be carried and stored. It will be convenient.

[0012]

1 to 8 show an example of a baggage cart in which the inventions of claims 1, 2 and 3 are combined.

1 to 4 show a baggage cart 1 in use, which is the same as a known cart 1, and the left and right wheels 3 and 4 are rotatably attached to the rear portion of a cargo receiving frame 2. Axle 5 and main handle arms 6 and 7 are provided.

Like the well-known one, the load receiving frame 2 can be tilted up and down with respect to the main handle arms 6 and 7 as indicated by a double arrow A. Although 8 is automatically raised and lowered, the details of the raising and lowering mechanism 8A of the support leg 8 are the same as those of the known structure, and therefore the illustration thereof is omitted.

Due to the well-known structure, the auxiliary handle arms 9, 10, 11, 12 are provided in the main handle arms 6, 7.
The main handle arm is 6,7.
Are connected by a lateral handle arm 13, and the sub handle arms 11 and 12 are also connected by a lateral handle arm 14.

The upper part 15 of the main handle arms 6 and 7,
Lateral support frames 17 and 18 are projected from 16 toward the rear opposite to the cargo receiving frame 2, and the projecting length is a virtual line OO connecting the rear end portions of the left and right wheels 3 and 4. Is set longer than the distance between the vehicle and the axle 5.

In the illustrated example, on the brackets 19 and 20 fixed to the upper portions 15 and 16, the end portions of the lateral support frames 17 and 18 are rotary shafts 2 that are horizontal axes orthogonal to the lateral support frames 17 and 18.
It is rotatably supported by 1 and 22.

Further, oblique supporting frames 23, 24 are provided extending from the rear end portions of the lateral supporting frames 17, 18 toward the axle 5 direction.

In the illustrated example, the upper ends of the oblique support frames 23, 24 are horizontal shafts 25, 26 orthogonal to the horizontal support frames 17, 18 and the horizontal support frame 1 is provided.
The brackets 27 and 28 of 7 and 18 are rotatably supported.

The upper part 1 of the main handle arms 6 and 7 described above.
Brackets 19 and 20 fixed to 5 and 16 are formed with stopper pieces 29 and 30 that project rearward, and horizontal support frames 17 and 18 have downward openings that abut the stopper pieces 29 and 30. Locking portions 31 and 32 of the horizontal supporting frames 17 and 18 in the horizontal posture.
The horizontal postures of the horizontal support frames 17 and 18 are held by externally fitting the stopper pieces 1 and 32 to the stopper pieces 29 and 30, respectively.

The lower portions of the oblique supporting frames 23 and 24 are slightly bent inward so as to be close to each other, and fitting spring pieces 35 and 36 are attached to the tips 33 and 34 and opened toward the load receiving frame 2. It is detachably attached to a fixing member on the side of the cargo receiving frame 2, that is, an axle 5 in the illustrated example.

Lower portions 37, 3 of the oblique supporting frames 23, 24
As shown in FIGS. 1 and 4, the reference numeral 8 is located in the vicinity of an imaginary line OO connecting the rear end portions of the peripheral surfaces of the left and right wheels 3 and 4.

In the illustrated example, the horizontal support frames 17 and 18 are connected by an operation horizontal rod 39, and the oblique support frames 23 and 24 are also connected by a horizontal rod 40 for reinforcement, and as a result, the horizontal support frames 17, 1
As shown in FIG. 1, FIG. 2 and FIG. 4, the slanted frame 8 and the oblique supporting frames 23 and 24 project in the rear of the baggage cart in the shape of an inverted pyramid as a whole.

By pulling the oblique supporting frames 23, 24 rearward, the tip ends 33, 34 are disengaged from the axle 5 and become free as shown by the two-dot chain line in FIG.
When 18 is rotated upward as shown by arrow B in FIG.
As shown in FIG. 5, the horizontal support frames 17 and 18 and the oblique support frame 2 are provided.
3 and 24 are folded in a flat state in which they are folded flat.

The flat frames 17 and 18 which are flatly folded
In order to maintain the folded posture between the diagonal support frames 23 and 24, the stopper pieces 29 and 30 of the brackets 19 and 20 are engaged with the engaging portions 41, which are the fitting locking grooves of the oblique support frames 23 and 24, which are in the vertical posture. , 42 are formed, and the horizontal support frames 17 and 18 and the oblique support frames 23 and 24 folded in the vertical state are held in a stable folding posture.

In the illustrated example, the auxiliary handle arms 9, 10, 1
By storing 1 and 12 in the main handle arms 6 and 7 and rotating the load receiving frame 2 in the direction of arrow A, the baggage cart 1 is not used as shown in FIGS. 5, 6 and 7. Sometimes it is a compact posture.

FIG. 8 is an explanatory view of a state in which the stairs 43 is raised and lowered by the baggage cart 1 in the used state shown in FIGS. 1 to 4, in which the oblique support frames 23 and 24 contact the ridge portion 44 of the stairs 43. When contacting and proceeding in the direction of arrow C or D, the diagonal support frame 23,
24 slides on the ridge 44, the lateral handle arm 14 occupies a high position, and in the normal walking posture, the lateral handle arm 14
Can hold

In the illustrated example, the end portions of the lateral support frames 17 and 18 are rotatably supported on the upper portions of the main handle arms 6 and 7, and the lower ends 33 and 34 of the oblique support frames 23 and 24 are the load receiving frame 2. Although it is detachably attached to the axle 5 which is the fixed member on the side, conversely, the end portions of the lateral support frames 17 and 18 are detachably attached to the upper portions of the main handle arms 6 and 7, and the oblique support frames 23 and 24 are provided. The tips 33, 34 of the above may be rotatably supported on the axle 5.

Particularly, in the invention of claim 2, the horizontal support frames 17, 1
8 and the diagonal support frames 23 and 24 are not connected by the operation lateral rod 39 and the horizontal rod 40, and the left and right lateral support frames 17 and the diagonal support frame 23 are combined, and the lateral support frame 18 and the diagonal support frame 24 are connected. And the end portions of the lateral support frames 17 and 18 on the main handle arm 6 and 7 side and the tips 33 and 34 of the oblique support frames 23 and 24 to the main handle arm 6 and 7, respectively. A pair of horizontal support frame 17 and oblique support frame 23 and a set of horizontal support frame 18 and oblique support frame 24 are respectively rotatably supported on the axle 5 between the main handle arms 6 and 7. It may be folded in.

[0030]

According to the first aspect of the present invention, when the stairs are elevated and lowered, only the handle arm is held in the normal walking posture and the cart is inclined, and the oblique support frame is continuously slid along the ridge of the stairs. It is possible to raise and lower the cart without impact.

Further, the structure is relatively simple, and there is an effect that it can be used as a small and lightweight baggage cart.

Further, according to the invention of claim 2 or claim 3, there is an effect that the baggage cart when not in use can be folded into a small size, and can be made small so as not to be bulky for carrying and carrying.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of an example of an embodiment.

FIG. 2 is a side view of what is shown in FIG.

FIG. 3 is a rear view of what is shown in FIG.

FIG. 4 is a plan view of what is shown in FIG.

FIG. 5 is a side view of what is shown in FIG. 1 in a folded state.

FIG. 6 is a rear view of what is shown in FIG.

FIG. 7 is a plan view of what is shown in FIG.

FIG. 8 is a schematic side view showing the state shown in FIG. 1 when going up and down the stairs.

[Explanation of symbols]

 1 Baggage cart 2 Cargo receiving frame 3,4 Wheels 5 Axle 6,7 Main handle arm 15,16 Upper part of main handle arm 17,18 Horizontal support frame 23,24 Oblique support frame 25,26 Horizontal shaft 37,38 Oblique support frame Lower part of OO virtual line

Claims (3)

[Claims] 1. An axle for both left and right wheels and left and right main handle arms are provided at a rear portion of the load receiving frame, and the left and right main handle arms are laterally oriented backward from the upper portion of the left and right main handle arms. The support frame is extended, and the extension length is set to be longer than the distance between the imaginary line connecting the rear ends of the left and right wheels and the axle, and from the portion near the rear end of the horizontal support frame. The oblique support frame is extended in the axial direction and is supported by the fixing member on the side of the load receiving frame, and the lower portion of the oblique support frame is near the imaginary line connecting the rear end portions of the peripheral surfaces of the left and right wheels. Baggage cart located. 2. The baggage cart according to claim 1, wherein a frame assembly including a lateral support frame and a diagonal support frame is foldable with respect to the left and right main handle arms. 3. A connecting portion between the horizontal support frame and the oblique support frame is rotatable about a horizontal axis orthogonal to the horizontal support frame, and a support portion between the horizontal support frame and the main handle arm is provided. One of the two support portions, the support portion between the support frame and the fixing member on the load receiving frame side, is rotatable about an axis parallel to the horizontal axis, and the other support portion is removable. The baggage cart according to claim 1 or 2, which is said to be.