JPH0784176B2 - Wheelbarrow - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hand cart, and more particularly to a hand cart provided with a carrier having traveling wheels and a handle arranged on one side of the carrier in the front-rear direction.

[0002]

2. Description of the Related Art Conventionally, most of these hand carts have a handle fixed to one side in the front-rear direction of a carrier having traveling wheels on the lower surface, and a hand is carried on the handle to carry a load to be loaded on the carrier. However, when the handle is fixed to one side in the front-rear direction of the bed,
It becomes bulky, the transportation cost for transportation is high, and the warehouse charge for storing is also high.Because the user also needs a large space to store it, the handle can be folded on the upper surface of the luggage bed. The attached one is proposed.

[0003]

However, when the handle is foldable on the upper surface of the luggage carrier, the handles are stacked in an overlapping manner on the upper surface of the luggage carrier. At least the height of the folded handle is higher than the total height of the traveling wheels and the bed. For this reason, when transporting the wheelbarrow from the manufacturer to the dealer or user,
When a large number of carts are transported together, reasonable loading is possible, so there is no problem so much.However, when transporting a single item in a small lot, it cannot be done reasonably.
It requires a lot of transportation space, especially when it is transported in a carton packaging using a cardboard case etc., there is a problem that the talent increases, the packaging cost and the transportation cost increase, and when the user uses it, There is a problem that it becomes bulky even when it is folded and mounted on a truck or stored.

Further, when carrying a large object such as a long object or a desk with the hand cart, the handle is an obstacle, and the handle is folded to carry the object such as the long object. In some cases, there was a problem that it could not be transported stably.

The present invention has been made in view of the above problems, and an object thereof is to store a handle on the back surface of a luggage carrier.
When the handle is stored on the backside of the luggage carrier,
Pace can be reduced, and also can be stably transported in large cargo protruding from the loading platform, moreover, the C
The point is to provide a cart that can easily store and take out bundles .

[0006]

In order to achieve the above object, according to the present invention, a hand cart provided with a luggage carrier 1 having traveling wheels 11 and a handle 2 arranged on one side of the luggage carrier 1 in the front-rear direction. in, in the longitudinal direction one side of the loading platform 1, attaching a support member 4 for supporting the handle 2 slidably swingably, the supporting member 4, a sliding-friendly <br/> ability of the handle 2 And the handle 2 can be swung between an upright position in which the handle 2 is vertically oriented and a horizontal position in which the handle 2 is horizontally oriented,
In addition, the handle 2 is configured to be retractable in the horizontal position on the back surface side of the luggage carrier 1, while the handle 2 is engaged with the lower end portion of the handle 2 when the handle 2 is erected, and the handle 2 is Engaging portion 70 that locks rocking and downward movement
And a lock body 7 pivotably supported at an engagement position where the engagement portion 70 and the lower end portion of the handle 2 are engaged with each other and an engagement disengagement position where the engagement is disengaged. An elastic body 8 for constantly urging the lock body 7 toward the engagement position and a receiving means 6 for receiving the handle 2 at the storage position of the handle 2 are provided, and the lock body 7 is moved from the engagement position. A hand cart comprising: a lock releasing operation body 9 for swinging to a disengagement position to disengage the lock body 7 from the handle 2.

[0007]

Further, when the handle 2 is erected, the loading platform 1 is provided with a contact portion 10 facing the handle 2, and the elastic body 8 for urging the lock body 7 in the lock direction of the handle 2 is urged in the urging direction. It is preferable that the elastic body 8 is biased so that the handle 2 is elastically brought into contact with the contact portion 10.

Further, it is also preferable to provide a fixing member 20 which engages with the luggage carrier 1 and the handle 2 which is pulled out from the luggage carrier 1 in the storage position and fixes the handle 2 to the luggage carrier 1.

Because of the above construction, the handle 2
Stand upright in the upright position,
It can be stored on the back side,
There is no need for complicated work when standing up and storing the ruler 2.
The handle 2 can be easily erected and stored.
Therefore, the workability of standing up and storing can be improved.
By the external operation of the unlocking operation body 9, the lock body 7 can be operated.
And the lower end of the handle 2 are disengaged and the lock is released.
And the handle 2 is lifted via the support member 4.
Swing from the standing position to the horizontal position,
The handle 2 by simply sliding the lever 2 to the front side of the loading platform 1.
2 can be changed from the standing state to the state of being stored in the loading platform.
On the other hand, in order to change the storage state to the standing state, the handle 2
Slide it to the rear of the loading platform 1 and pull it out to the horizontal position.
The handle 2 in the state of
From the position to the standing position, simply rock the
The engagement between the body 7 and the lower end of the handle 2 is automatically restored.
By returning, the handle 2 can be locked in the standing position.
You can do it. Therefore, the handle 2 is raised and
The above-mentioned hand
The dollar 2 can be stood up and stored.

Further, the handle 2 is provided on the back surface of the loading platform 1.
Can be stored on the side, so the handle can be
It can be made bulkier than the conventional folding type, especially for small mixes.
For on-board transportation or for users to load on trucks
Space for storage and storage
It can be made small, and the handle 2 can be attached to the back surface of the loading platform 1.
By storing the cargo bed 1 on the side,
It can be flattened without any protrusions.

The loading platform 1 is provided with a contact portion 10 facing the handle 2 when the handle 2 is erected, and the biasing direction of the elastic body 8 for biasing the lock body 7 in the lock direction of the handle 2 is set as follows. When the handle 2 is elastically contacted with the contact part 10 by the biasing of the elastic body 8, the handle 2 is elastically contacted with the contact part 10 to hold the handle 2 in the upright position with less rattling. It can be carried by hand and stably.

Further, in the case of including a fixing member 20 which engages with the luggage carrier 1 and the handle 2 which is pulled out from the luggage carrier 1 in the storage position, and which fixes the handle 2 to the luggage carrier 1,
Since the handle 2 can be fixed to the one side of the luggage carrier 1 by this fixing member 20, the total length of the cart can be lengthened. When loading or unloading from the side, the loading platform 1 can be moved to the back of the covered loading platform or the container by a manual operation by a worker on the ground, and the worker on the covered loading platform or the container walks accordingly. It is no longer necessary, and loading and unloading of trucks with lids and containers can be performed easily and quickly.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The carts shown in FIGS. 4 and 5 are provided with a flat loading platform 1 formed in a rectangular shape, and four traveling wheels 11 are provided on the back surface of the loading platform 1 and the loading platform 1 is provided. On one side in the front-rear direction, that is, on the left end in FIG. 4, a gate-shaped handle 2 made of a circular pipe is provided to carry a load to be loaded on the upper surface of the loading platform 1. Reference numeral 12 is a wheel supporting member for supporting the traveling wheel 11, and the wheel supporting member 12 provided on the handle 2 side is fixed to the luggage carrier 1, whereas the wheel supporting member 12 provided on the opposite side is the luggage carrier 1. On the other hand, it is supported by a vertical axis (not shown) so as to be rotatable in the horizontal direction to facilitate the steering of the cart.

According to the present invention, however, a supporting member 4 for slidably supporting the handle 2 is swingably attached to one side in the front-rear direction of the loading platform 1 constructed as described above, and the supporting member 4 is attached to the supporting member 4. , The handle 2 is slidably inserted, and the handle 2 is swingable between an upright position in which the handle 2 is vertically oriented and a horizontal position in which the handle 2 is horizontally oriented, and the handle 2 is in the horizontal position. While being configured to be retractable on the back surface side of the luggage carrier 1, the luggage carrier 1 is engaged with a lower end portion of the handle 2 when the handle 2 is erected to lock the swing and downward movement of the handle 2. It has an engaging portion 70 and is pivotally supported at an engaging position where the engaging portion 70 and the lower end portion of the handle 2 engage with each other and an engaging disengagement position for disengaging the engagement. The lock body 7 and the lock body 7 are always urged in the engagement position direction. The elastic body 8 and the receiving means 6 for receiving the handle 2 at the storage position of the handle 2 are provided, and the lock body 7 is swung from the engagement position to the disengagement position so that the lock body 7 and the handle The unlocking operation body 9 for disengaging the engagement with 2 is provided.

More specifically, a pair of brackets 3 are provided on one side in the longitudinal direction on the back surface of the luggage carrier 1, that is, at the end portion on the handle 2 side and outside the traveling wheels 11, 11 in the luggage carrier width direction. The one end in the length direction is provided so as to project outward from the cargo bed 1, and the handle 2 is formed in a gate shape from a horizontal member 21 and a pair of vertical members 22, 22.
The handle 2 is attached to one side in the length direction of the luggage carrier 1 via the brackets 3.

As shown in FIGS. 1 and 2, each bracket 3 has inner and outer support walls 31, which face each other.
32 and a fixed wall 33 that connects the upper ends of the support walls 31 and 32, and the fixed wall 33 of the loading platform 1 is provided via countersunk bolts 34 that penetrate the upper and lower reinforcing plates 1a and 1b. It is fixed on the bottom surface.

The support member 4 is swingably supported on the bracket 3. That is, as shown in FIG. 1, the handle 2 can be slid from a tubular portion 41 having an inner diameter corresponding to the outer diameter of the handle 2 and a sleeve 42 fixed to the upper end of the tubular portion 41. Constituting the supporting member 4 for supporting the sleeve 42 on the supporting wall 3
The support member 4 is rotatably fitted to a first pivot shaft 35 provided between the support wall 3 and the support wall 31, 32 between the support walls 31 and 32 at the projecting portion of the bracket 3 and the handle 2 with respect to the cargo bed 1. Is attached so as to be swingable between an upright position in which the vertical direction is directed and a horizontal position in which the horizontal direction is directed.
The supporting member 4 is rocked with respect to the luggage carrier 1 by the rocking of the handle 2 supported by the handle 2, and the handle 2 is vertically oriented as shown in FIGS. 1, 4 and 5. And as shown in FIG. 3 and FIG. 6, it is located at a horizontal position oriented in the horizontal direction.

Further, the support member 4 is swung to a horizontal position to bring the handle 2 into a horizontal state, and then the cargo bed 1
The handle 2 is housed on the back side of the loading platform 1 as shown in FIG. 3 by pushing it inward, and the handle 2 housed in this way is a rod provided between the support walls 31 and 32. It is received by the receiving means 6 composed of a plate-shaped receiving body.

Further, as shown in FIG. 1, the supporting member 4
An engaging portion 70 that engages with a lower end portion of the handle 2 when the handle 2 is erected and locks swinging and downward movement of the handle 2 on the traveling wheel 11 side. The lock body 7 that has the lock body 7 and the handle body 2 that holds the lock body 7
An elastic body 8 for urging the lock body 7 in the locking direction is provided, and the restraint means 5 is configured from the lock body 7 and the elastic body 8. The lock body 7 is shown in FIGS. 1 and 2. So that the inner side wall 71 and the outer side wall 7 are formed in an arc shape.
2 and the top wall 7 connecting the upper ends of the side walls 71, 72
3 and the engaging portion 70 formed of an inclined wall connecting the end portions of the side walls 71 and 72 on the support member 4 side,
The lock body 7 is pivotably supported on a second pivot shaft 36 provided between the support walls 31 and 32.

As shown in FIGS. 1 and 2, the elastic body 8 is composed of a spring material that is inserted into the second pivot shaft 36, and is provided in the middle portion of the elastic body 8. The rising portion is engaged with the lower surface side of the ceiling wall 73, while the spring legs at both ends are engaged with the lower surface side of the spring receiving rod 37 provided between the support walls 31 and 32, respectively. 1 urges the lock body 7 in the direction of the solid line arrow to press the engagement portion 70 toward the lower end portion of the handle 2, and this pressing causes the handle 2 to swing at the standing position, It restrains the downward movement.

Further, each lock body 7 has a lock release operation body 9 made of a bar material having a coil spring 91 inserted at one end thereof.
Is installed, as shown in FIG. 2 and FIG.
Both ends of the operating body 9 are inserted into and supported by the respective inner side walls 71, and the lock releasing operation body 9 is pressed downward with, for example, a foot so that the lock body 7 is resisted against the elastic body 8. The lock body 7 can be unlocked by swinging in the direction shown by the dotted arrow in FIG. Incidentally, 74 is an insertion hole through which the end portion of the operation body 9 is inserted, and each inner support wall 31 is provided with an elongated hole 38 extending in an up and down direction in the vertical direction. The operating range of the operating body 9 at the time of pressing the body 9 can be regulated.

Further, the first connecting rod 3 having a contact portion 10 facing the handle 2 when the handle 2 is erected on the upper side of the upper end portion of the protruding portion of the bracket 3 when the handle 2 is erected.
9, the elastic body 8 biases the lock body 7 to elastically contact the upright handle 2 with the contact portion 10. The elastic contact of the handle 2 with the contact portion 10 causes Rattling of the handle 2 with respect to the cargo bed 1 is eliminated.

Further, as shown in FIG. 6, engagement holes 13 and 26 are formed in the rear end portion of the luggage carrier 1 and the cross member 21 of the handle 2.
When the handle 2 is pulled out from the storage position to the outside of the luggage carrier 1 without swinging, the engagement hole 26 provided in the cross member 21 of the handle 2 and the rear end portion of the luggage carrier 1 are provided. The fixing member 20 that engages with the engaging hole 13 provided in the
The handle 2 can be fixed to the cargo bed 1 in a state where the handle 2 is pulled out from the cargo bed 1 by engaging with, and by fixing the fixing member 20, the handle 2 is pulled out to extend the entire length of the cart. I am trying to make it longer.

In FIG. 1 and FIG. 2, reference numeral 23 denotes a stopper which penetrates the handle 2 in the radial direction so as to prevent the handle 2 from coming out of the support member 4 and a reinforcing plug 24. Is fixed inside the tip of the handle 2. Further, 30 is the support walls 31 and 32.
A bracket reinforcing member having an L-shaped cross section provided between
The handle 2 pulled out from the luggage carrier 1 in a horizontal state can be received, and the bracket 3 is reinforced to improve rigidity and prevent deformation of the bracket 3 when colliding with an external object during traveling. There is.

The inner support wall 3 of each bracket 3 is also provided.
1 is provided with a notch 25 so that the cross member 21 of the handle 2 can be received when the handle 2 is stored on the back side of the luggage carrier 1, and the handle 2 is moved outward from the luggage carrier 1 in the front-rear direction. The protruding length is shortened.

Therefore, in the cart having the above structure, the handle 2 is oriented in the vertical direction as shown in FIG.
It is possible to stand up at the standing position or to store it on the back side of the loading platform 1 as shown in FIG. 3, and in order to store it from the standing state, press the unlocking operation body 9 downward. , The lock body 7 from the engagement position to the disengagement position
And swings the lock body 7 between the engaging portion 70 and the handle 2.
Release the lock by releasing the engagement with the lower end,
It can be performed by simply swinging the handle 2 from the standing position to the horizontal position via the support member 4 and then sliding the handle 2 to the front side of the loading platform 1 in this state .
In addition, to change from the stored state to the standing state,
Slide 2 to the rear of the loading platform 1 and pull it out to the horizontal position.
In this state, the handle 2 is raised from the horizontal position.
This is done by simply swinging the
The lock body 7 is always biased toward the engaging position by the elastic body 8.
Therefore, it is possible to swing the handle 2 to the standing position.
Accordingly, the engagement between the engaging portion 70 and the lower end portion of the handle 2
Automatically returns to lock the handle 2 in the standing position.
Therefore, the handle 2 can be raised.
Easy to stand and store without complicated work
The handle 2 can be erected and stored, and
As a result, the workability of standing and storing can be improved.

Since the handle 2 can be stored on the back side of the luggage carrier 1 as described above, the handle 2 can be made smaller than the conventional one in which the handle is folded on the upper surface of the luggage carrier, and can be transported or stored. Space can be reduced, so
Even when the cart is shipped as a single item using small-lot mixed loading, the transportation cost can be reduced and the space for storage can be reduced. In addition, when the carts are individually packaged in cartons and transported, not only the volume of the cartons can be reduced, the talent can be reduced, the transportation cost can be reduced as much as possible, and the material cost of the carton packaging can also be reduced.

Further, when carrying a large load that extends from the luggage carrier 1, the large luggage is loaded on the luggage carrier 1 with the handle 2 stored on the back side of the luggage carrier 1. Unlike the conventional one, there is no obstacle on the top surface of the loading 1, so that even a large load can be transported in a stable state. In the above embodiment, the flat head bolts 34 are used to attach the brackets 3 to the cargo bed 1
Since it is fixed to, the protrusions from the upper surface of the luggage carrier 1 can be eliminated and the cargo can be flattened without being caught by the luggage during loading.

In the above embodiment, the handle 2 is used.
Since the handle 2 can be fixed to the luggage carrier 1 in a horizontal state with respect to the luggage carrier 1 and in a state of being pulled out from the luggage carrier 1, the total length of the cart can be increased. For example, when loading or unloading from the side with the lid of the truck or the container in the length direction, the loading platform 1 is manually pushed by a worker on the ground.
Can be moved to the back of the covered luggage carrier or the container, and the operator does not need to walk on the covered luggage carrier or the container, and loading and unloading can be performed easily and quickly. In this case,
As shown in FIG. 6, the auxiliary handle 27 is attached to the handle 2
By connecting to the cross member 21, the width of movement of the loading platform 1 by hand pushing by a worker on the ground can be widened.

Further, when the handle 2 is stored on the back side of the luggage carrier 1, the handle 2 only needs to be slid with respect to the support member 4, so that the handle 2 can be slid with a small sliding resistance. Therefore, the workability of storing and pulling out the handle 2 can be improved, and since the receiving means 6 receives the handle during storage, the stored state can be stably maintained.

When the handle 2 is used upright with respect to the loading platform 1, the upright handle 2 is restrained from moving downward by the biasing force of the elastic body 8 while being pressed against the contact portion 10. Since the handle 2 can be elastically contacted and the swing of the handle 2 can be fixed, the luggage mounted on the upper surface of the cargo bed 1 can be stably transported without rattling.

In the above embodiments, the case where the handle 2 is formed in a gate shape has been described, but it may be formed in a T shape and supported by one support member 4 provided on one bracket 3. . Further, although the lock body 7 is swung, it may be configured so that it can be linearly advanced and retracted from obliquely below with respect to the lower end portion of the handle 2 standing upright with respect to the luggage carrier 1.

[0034]

[0035]

As described above, in the cart of the present invention, the handle 2 is at the upright position in which the handle 2 is vertically oriented.
You can stand it up or store it on the back side of the loading platform 1.
Moreover, when raising and retracting the handle 2,
Easily stand up the handle 2 without complicated work.
It is possible to store and store, and improve the workability of standing and storing.
That is, the external operation of the unlocking operation body 9 can be performed.
The engagement between the lock body 7 and the lower end of the handle 2
Release the lock to release the handle 2
Swing from the standing position to the horizontal position via the support member 4,
In this state, the handle 2 is slid forward of the loading platform 1.
Just store the handle 2 from the standing state in the loading platform.
It is possible to change from the stored state to the standing state while
Slide the handle 2 to the rear side of the loading platform 1 to move it horizontally.
The handle 2 in this state.
Only swing from the horizontal position to the standing position via the member 4
The work of the lock body 7 and the lower end of the handle 2
Is automatically returned and the handle 2 is in the standing position.
It can be locked. Therefore, the
To carry out complicated work when standing up and storing $ 2
Since the handle 2 can be easily erected and stowed without
As a result, the workability of standing up and storing can be improved.
Is.

The handle 2 is provided on the back surface of the loading platform 1.
Can be stored on the side, so the handle can be
It can be made bulkier than the conventional folding type, especially for small mixes.
For on-board transportation or for users to load on trucks
Space for storage and storage
It can be made small and therefore small carts can be used to load carts
When shipping as a single item, the storage space is also small
It not only saves you money but also reduces transportation costs,
If you want to transport your car in individual carton packaging, package it in a carton
The volume of the package can be reduced, and the talent costs can be reduced.
Not only cheaper, but also cheaper material cost for carton packing
And the protrusion of the loading platform 1 from the upper surface of the loading platform 1
As a result, items can be lost and flattened.
Can be loaded easily without getting caught, and
When carrying a large baggage that protrudes from the loading platform 1,
Also, load this luggage on the upper surface of the loading platform 1 in a stable state.
It can also be transported.

Further, when the handle 2 is erected, the loading platform 1 is provided with a contact portion 10 facing the handle 2, and the elastic body 8 for urging the lock body 7 in the lock direction of the handle 2 is set in the biasing direction. When the handle 2 is elastically contacted with the contact part 10 by the biasing of the elastic body 8, the handle 2 is elastically contacted with the contact part 10 to hold the handle 2 in the upright position with less rattling. It can be carried by hand and stably.

Further, in the case of including a fixing member 20 for engaging the luggage carrier 1 and the handle 2 pulled out from the luggage carrier 1 in the storage position and fixing the handle 2 to the luggage carrier 1,
Since the handle 2 can be fixed to the one side of the luggage carrier 1 by this fixing member 20, the total length of the cart can be lengthened. When loading or unloading from the side, the loading platform 1 can be moved to the back of the covered loading platform or the container by a manual operation by a worker on the ground, and the worker on the covered loading platform or the container walks accordingly. It is no longer necessary, and loading and unloading of trucks with lids and containers can be performed easily and quickly.

[Brief description of drawings]

FIG. 1 is an enlarged partial vertical cross-sectional view showing a main part of the present invention.

FIG. 2 is a bottom view of FIG.

FIG. 3 is an enlarged partial vertical sectional view showing a state in which a handle is stored.

FIG. 4 is an overall side view of a cart that has a handle upright.

FIG. 5 is an overall rear view of the cart that stores the handle.

FIG. 6 is a perspective view in which a handle is pulled out and fixed at a water level position.

Claims (3)

[Claims] 1. A luggage carrier 1 having traveling wheels 11, and the luggage carrier 1
And a handle 2 arranged on one side in the front-rear direction of the cart, wherein a supporting member 4 for slidably supporting the handle 2 is swingably attached to one side of the loading platform 1 in the front-rear direction. The handle 2 is slidably fitted into the support member 4 so that the handle 2 can be swung between an upright position in which the handle 2 is vertically oriented and a horizontal position in which the handle 2 is horizontally oriented. 2 can be stored on the back side of the luggage carrier 1 in a horizontal position, while the handle 2 can be stored on the luggage carrier 1 when the handle 2 stands up.
Has an engaging portion 70 that engages with the lower end portion of the handle 2 to lock the swing and downward movement of the handle 2, and the engaging portion 7
0 and the engaging position where the lower end of the handle 2 is engaged,
A lock body 7 swingably pivoted to an engagement / disengagement position for releasing engagement, an elastic body 8 for constantly urging the lock body 7 toward the engagement position, and a storage position for the handle 2. And a receiving means 6 for receiving the handle 2, and swinging the lock body 7 from the engagement position to the release position,
A hand cart comprising an unlocking operation body 9 for disengaging the lock body 7 from the handle 2. 2. The loading platform (1) is provided with a contact portion (10) facing the handle (2) when the handle (2) is erected, and a biasing direction of an elastic body (8) for biasing the lock body (7) in the lock direction of the handle (2) is set, The hand cart according to claim 1, wherein the handle 2 is in a direction to elastically contact the contact portion 10 by the biasing of the elastic body 8. 3. A fixing member 20 which engages with the luggage carrier 1 and a handle 2 pulled outward from the luggage carrier 1 in the storage position, and which fixes the handle 2 to the luggage carrier 1.
The carts described in 2 .