JPH1159427A - Pushcart - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a folding pushcart having excellent design, high easiness to use and safety with which a user can smoothly convey baggage during walking or shopping, and on which the uses can sit for rest. SOLUTION: A chair composing a pushcart is directed to the rear side, differently from the conventional case. A seat surface, as cover of a luggage housing part, can be opened from the rear side. A handle 15 is attached to the front side of the pushcart, rotatably around the attaching part. A locking device is arranged for locking the rotation of the handle 15 at an proper position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a collapsible wheelbarrow that can be loaded with luggage during a walk or shopping and can travel smartly, and can be used as a chair during short breaks, especially with improved design and ease of use. It relates to a foldable wheelbarrow pursuing safety.

[0002]

2. Description of the Related Art Conventionally, this kind of wheelbarrow has a basic structure such as that disclosed in Japanese Utility Model Laid-Open No. 62-77075 and that disclosed in Japanese Utility Model Laid-Open Publication No. 7-24679 even if there is a slight difference in structure. In general, a chair was attached to the front of the push handle when traveling, and the seat surface of this chair was opened forward, so that luggage could be put under this chair.

[0003]

Problems to be Solved by the Invention
In known wheelbarrows, such as that of No. 5,
The image of walking while pushing a chair while traveling was lacking in smartness. In addition, actual opening 7
Japanese Patent No. 24679 is improved to reduce the image of walking by pushing a chair by reducing the seat surface in front of the push handle and raising the seat surface during running, but the depth of the seat surface is reduced. It is hard to sit down. In addition, both seats have a lid for the luggage storage unit, but since it opens from the front, it is difficult to load and unload luggage without turning forward, and the seat can be opened from the front while traveling, There was also a risk that the valuables put inside would be damaged such as snatching.

[0004]

According to the present invention, in order to solve the above-mentioned problems, a chair constituting a wheelbarrow is made to face backward, contrary to a conventional one, and becomes a lid of a luggage storage unit. Open the seat from behind. In addition, the handle is attached to the front of the wheelbarrow, and the handle is rotatable at the attachment portion, and a lock device for fixing the rotation of the handle at an appropriate position is provided.

[0005]

The wheelbarrow of the present invention uses a handle attached to the front of the wheelbarrow at a position in front of the wheelbarrow during traveling. At the time of a short pause, the wheelbarrow of the present invention is quickly turned into a comfortable chair by releasing the lock by the lever operation and rotating and fixing the handle forward, so that it is possible to take a short pause while sitting backward.

[0006]

1 is a perspective view showing a traveling state of a wheelbarrow according to the present invention, FIG. 2 is a perspective view of the frame, FIG. 3 is a side view of the frame, and FIG. FIG. 5 is a side view of the frame in a folded state, and FIG. 5 is a perspective view of the wheelbarrow according to the present invention in a chair state. Hereinafter, the illustrated embodiment of the present invention will be described in detail. Front legs 2 are pivotally supported on both left and right sides of a front end portion corresponding to a U-shaped opening of a substantially U-shaped main frame 1 as viewed from above, and the front legs 2 extend slightly downward and forward. A sector base 3 is fixed to the upper end of the front leg 2, and two left and right front wheels 4 are pivotally supported at the lower end via a caster structure.

[0007] Rear legs 5 are pivotally supported on the left and right sides of the rear portion of the main frame 1, and the rear legs 5 extend slightly downward and rearward. A rear shaft 6 is fixed to the lower end of the rear leg 5 so as to penetrate the left and right rear legs. A bracket 8 is fixed to the rear leg 5 below the fulcrum of the main frame 1, and a rear end portion of a substantially U-shaped rear leg link 9 corresponding to a U-shaped opening when viewed from above is further below the bracket. It is supported on both left and right sides, and is installed almost horizontally.

A front end of a front leg link 10 is connected to a lower portion of the left and right front legs 2 at a position substantially flush with a rear leg link 9, and a front frame 11 is connected to a lower portion of the sector base 3. The other end of the front frame 11 and the rear end of the front leg link 10 are connected by a pin 12, and the front leg link 10 is installed substantially horizontally. Further pin 12
Supports the right and left sides of the front part of the rear leg link 9. An end of a rear frame 13 is pivotally supported on the bracket 8, and a frame lock 1 is mounted on the other end of the rear frame 13.
4 is supported. By connecting this frame lock 14 to the pin 12 of the fulcrum of the front leg link 10 and the rear leg link 9, each member is fixed and a strong frame is formed. Conversely, the frame lock 14 is rotated, and the pin 12
By releasing the connection of the main frame 1, the fixing of each member is released, so that the rear portion of the main frame 1 can be pulled up as shown in FIG. 4 and the entire frame can be folded.

A handle 15 is pivotally supported on the sector base 3 fixed to the upper end of the front leg 2, and a sector-shaped hole 3a about the rotation axis of the handle 15 is provided on the left and right sector bases 3. The rivet 16 is fixed below the handle 15 through the fan-shaped hole 3a, so that the handle 15 can be moved back and forth within the range of the fan-shaped hole 3a. A sector lock 17 having a center of rotation substantially in the tangential direction of the sector-shaped hole 3 a and having a tooth portion 17 a for preventing the movement of the rivet 16 is pivotally supported on the sector base 3. Also sector lock 17
Is normally urged by the spring 18 in the direction in which the tooth portion 17a prevents the movement of the rivet 16, so that the position of the handle 15 is normally fixed. Further handle 15
A buffer member 19 is fixed to the lower portion, and at the position where the handle 15 is pulled forward, the buffer member 19 contacts the front leg 2 to act as a stopper, so that the handle 15 is firmly fixed.

On the other hand, a sector lever 20 is pivotally supported above the rear leg 5. The rotation of the sector lever 20 is connected via the sector link 21 so that the sector lock 17 is rotated against the spring force of the spring 18 so that the tooth portion 17a of the sector lock is disengaged from the rivet 16. Usually, the handle 15 is locked by the tooth portion 17a of the sector lock. However, the lock can be released by rotating the sector lever 20, and the position of the handle 15 can be changed.

The main frame 1 is slightly inclined forward and downward, and a back frame 22 is fixed near its front end so as to be higher than the main frame 1 when viewed from the side.

The main frame 1 constructed as described above
In addition, a cloth bag 23 is suspended and mounted, and a seating surface 24 including a plate and a sponge is installed on the upper surface of the main frame 1 by being hinged near a mounting portion of the back frame 22. Opens the bag 23
You can put things in and out. In addition, the cloth bag 23 and the seat surface 24 can be made integrally.

FIG. 6 is an exploded perspective view of the caster structure portion in which the caster 25 is rotated, and FIG. 7 is a perspective view of the caster structure portion in a state in which the caster 25 stops rotating.
A caster center 26 and a caster shaft 27 are fixed to the lower end of the front leg 2, and a caster 25 is supported on the caster shaft 27. A caster stopper 28 is rotatably supported by a caster pin 30 on the caster shaft 27 so that the caster pin 28 can be turned up and down. The caster stopper 28 is turned down and the caster 25 is pinched so that the caster 25 turns. You can stop it.

The casters 25 are made of synthetic resin,
The projecting pieces 25a are integrally formed on both side surfaces. The caster center 26 is also made of synthetic resin,
Similarly, protruding pieces 26a are integrally formed on both side surfaces. These protruding pieces 25a, 26a are on the locus of rotation of the caster stopper 28. Usually, these protruding pieces 25a, 26a prevent the rotation of the caster stopper 28, but the caster stopper 28 is rotated up and down. When strongly moved in the direction, the caster stopper 28 can be rotated by elastically deforming the protruding pieces 25a and 26a. The projecting piece 25a of the caster 25 keeps the caster stopper 28 sandwiching the caster 25 due to the repulsive elasticity, and the projecting piece 26a of the caster center 26 keeps the caster stopper 28 not sandwiching the caster 25. Working. In this way, the rotation and fixation of the casters 25 can be stably provided.

[0015]

According to the wheelbarrow of the present invention, the handle 15 attached to the front of the wheelbarrow is fixed at a position obliquely rearward and upward from the mounting portion during traveling, so that the appearance of the wheelbarrow can be made very smart. ing. At this time, since the seat surface 24 serving as the lid of the luggage storage unit is also opened from the rear, the lid can be opened and closed from the same position without turning forward, so that it is very easy to use, and furthermore, such as snatching etc. It is hard to be damaged and safe.

The seating surface 24 is inclined slightly downward.
In front of the seating surface 24, there is a portion 29 that is formed by the back frame 22 and rises in a mountain shape when viewed from the side. The luggage can be stably placed in the portion surrounded by the handles 15 on both sides.

In a conventional wheelbarrow, since the lid of the luggage storage section is provided in places other than the seating surface, there is a possibility that suspicion of shoplifting or the like may be raised. Had to change to the cart provided in the store, go into the store to do shopping, pay the money, and then put the luggage on the wheelbarrow that you brought yourself, but the wheelbarrow of the present invention is When the luggage is placed on the seat 24, the seat 24, which is the lid of the luggage storage unit, cannot be opened. Even if you shop, you can use it with confidence without fear that you will be suspicious of shoplifting.

At the time of a short pause, the sector lock 17 is released by operating the sector lever 20, and the handle 15 is rotated and fixed forward, so that the wheelbarrow of the present invention is quickly transformed into a comfortable chair. At this time, the raised portion 29 in front of the seating surface 24 supports the waist, so that it is possible to take a short pause while sitting backward.

[Brief description of the drawings]

FIG. 1 is a perspective view of a traveling state of a wheelbarrow according to the present invention.

FIG. 2 is a perspective view of the frame in the state of FIG. 1;

FIG. 3 is a side view of the frame in the state of FIG. 1;

FIG. 4 is a side view of the frame in a state where the handcart according to the present invention is folded.

FIG. 5 is a perspective view of a wheelbarrow according to the present invention in a chair state.

FIG. 6 is an exploded perspective view of a wheelbarrow according to the present invention in a caster rotating state.

FIG. 7 is a perspective view of a wheelbarrow according to the present invention in a state where the rotation of the casters is stopped.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main frame 2 Front leg 3 Sector base 3a Sector shaped hole of sector base 4 Front wheel 5 Rear leg 6 Rear axle 7 Rear wheel 8 Bracket 9 Rear leg link 10 Front leg link 11 Front frame 12 Pin 13 Rear frame 14 Frame lock 15 Handle 16 Rivet 17 Sector Lock 17a Sector Lock Tooth 18 Spring 19 Buffer Member 20 Sector Lever 21 Sector Link 22 Back Frame 23 Bag 24 Seat 25 Caster 25a Caster Projection 26 Caster Center 26a Caster Center Projection 27 Caster Shaft 28 Caster Stopper 29 raised part 30 caster pin

Claims (1)

[Claims] 1. A push handle (hereinafter referred to as a handle).
Is attached to the front of the wheelbarrow, and the handle is rotatable in the front-rear direction at the attachment part, and a lock device is provided to fix the rotation of the handle at an appropriate position, and the handle is fixed to the front position during traveling When used as a chair, the wheelbarrow has a handlebar fixed to the front position and a chair that can be seated backward.