JPH0426295Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention relates to carts such as transportation carts, shopping carts, and other cart carts. , and also relates to a trolley for transportation, shopping, etc. that can be spread out on the same plane.

"Prior Art and its Problems" Various types of carts for transportation, shopping, etc. (hereinafter simply referred to as transportation carts) have been devised and put into practical use. Among these types of transportation trolleys, foldable ones are highly valued, and can be found here and there in technical literature, including the following:

For example, Japanese Utility Model Publication No. 52-17893 proposes a foldable carrier, the gist of which is a structure in which the loading platform can be folded into two. Also, Jikko 52-
No. 17892 proposes a telescoping portable carrier,
The gist of this is that an auxiliary loading platform that expands and contracts can be stored in the fixed loading platform.

Furthermore, there is a transport vehicle of Utility Model Publication No. 54-4783, which is similar to the invention of the above-mentioned Utility Model Publication No. 52-17892, but its gist is that the length of the loading section can be expanded or contracted in accordance with the size of the transported article. .

Each of these ideas allows the cargo platform to expand and contract.
It has the advantage that the loading platform can be expanded or contracted depending on the size of the goods to be transported, and when the carrier body is no longer needed, it can be reduced and stored.

However, since both are two-part systems, even if they are reduced in size, there is a limit to the size of the reduction, which naturally limits the field of use, and other applications such as transportation vehicles that are the object of the present invention. For example, when folded, it is unsuitable for use as a shopping trolley because it is small and can be used for shopping, and the top surface of the loading platform is not flat.
This may cause some inconvenience depending on the goods being transported. Furthermore, there were other problems such as mechanical complexity.

In addition, a folding transport vehicle was proposed in Utility Model Publication No. 36-33729. This invention is a transport vehicle that can be lowered into three parts, with both ends of the base plate being foldable.

However, this registered utility model has a structure in which a small base plate can be folded against a large base plate.

Therefore, the length of the folded state is naturally longer, and as mentioned above, the present invention can be used as a transportation trolley or other trolleys, for example, when folded, it is small and can be used for shopping, etc. It is unsuitable as a shopping trolley, the folded state of each base plate is exposed when folded and is unsightly, and the reliability of the folded state cannot be ensured (shielding plates,
Or no concealment board is provided. ), and other issues can be considered.

``Means for Solving the Problems'' Therefore, the present invention aims to simplify the structure, make the loading platform flat when extended, and, as mentioned above, be useful as a shopping trolley. In order to achieve this, as well as to secure the appearance of the folded state by ensuring the stacked state of the stacked cargo platform components is maintained and concealed when folded, the following configuration was adopted.

That is, the present invention provides an evenly divided loading platform that is foldable in a multi-stage manner and is equipped with a handle and guide member pieces for the front and rear wheels on the back surface thereof, and a uniformly divided loading platform that is foldable in a multi-stage manner. When extended in a plane, the front and rear wheel guide member pieces are respectively formed on the same horizontal plane on the back surface of the equally divided loading platform, and are connected to each of the loading platform components constituting the evenly dividing loading platform. a pair of front wheel guide members and a rear wheel guide member, which are slidably and loosely fitted into the front wheel guide member;
and when the equally divided loading platform is in a folded state,
a front wheel guide plate provided with the front wheel caster, which is located in the lowermost loading platform component and is arranged at a continuous portion of the loading platform when the equally divided loading platform is in an extended state; It is slidably and loosely fitted into the guide member,
and when the equally divided loading platform is in a folded state,
a rear wheel guide plate that is located in the lowermost loading platform component and includes a rear wheel caster that is disposed at another connected portion of the loading platform component when the evenly divided loading platform is in an extended state; When the evenly divided loading platform is folded into multiple stages, it is suspended from the front and back to ensure the folded state, and is stored in the storage hole provided in the equally dividing loading platform when not in use. This is a trolley for transportation, shopping, etc., consisting of a shielding plate that can be installed on the ground, and

``Function'' Next, to explain the outline of the function of the present invention, the equally divided loading platform is folded in three stages in this example, and shielding plates are fixed to the front and rear of the forward direction. Along with being folded to dimensions,
The folded evenly divided loading platform is maintained in the folded state through the engagement of the shield plate between the equally dividing loading platform.

In this case, it is better to configure the rear wheel casters to be located at the rear of the evenly divided loading platform as shown in the figure.This is convenient when pulling the trolley, climbing stairs, etc. This is because the distance between the front and rear wheels becomes wider, improving the stability of the truck.

When trying to extend the evenly divided loading platform in such a state, first store the shielding plate in the evenly divided loading platform, and grasp the third loading platform component that constitutes the evenly divided loading platform. Then, when the third loading platform component is lowered while moving toward the front of the evenly divided loading platform section, the second loading platform component will release the hinge provided between it and the first loading platform component. Similarly, the third loading platform component connects to the second loading platform component via a hinge provided between the third loading platform component and the second loading platform component.
They are respectively located in front of the loading platform components, and only here the evenly divided loading platform is extended.

After that, the front wheel casters are moved to the bottom surface of the third platform component, and the rear wheel casters are moved to the bottom surface of the first platform component, and the evenly divided platform section is in an extended state. becomes.

In this state, the extended state is ensured via the rear wheel guide plate provided between one continuous part of the equally divided loading platform, that is, the first loading platform component and the second loading platform component. .

Similarly, the extended state is ensured via the front wheel guide plate provided between the other continuous portion of the equally divided loading platform, that is, the second loading platform component and the third loading platform component.

Therefore, the equally divided loading platform section in the extended state is configured to be unbendable, in other words, the evenly dividing loading platform section is held in the extended state.

As described above, the front and rear wheel casters are fixed at predetermined positions to ensure smooth movement of the equally divided loading platform (base plate) in the extended state.

``Example'' Next, an embodiment of the present invention will be described in detail based on the drawings. 1 is an evenly divided loading platform that can be folded in a multi-stage manner, and this evenly dividing loading platform 1 is an example of this. This is a three-stage method.

That is, a first loading platform component 1a, a second component 1b connected to the first loading platform component 1a via the hinge 2, and a second component 1b connected to the second loading platform component 1b via the hinge 3. and a third loading platform component 1c.

When it is folded in a multi-stage manner (equally divided loading platform 1 is in its minimum state), it becomes the state shown in Figure 1, and when it is extended in the same plane (equally dividing loading platform 1 is in its minimum state). (Maximum condition) The condition is as shown in Figures 2 and 3, and furthermore, due to the guide plate for the front and rear wheels, which will be described later, the connecting parts, so-called hinges 2 and 3, are not bent, and ultimately the equally divided loading platform part 1 is connected. This prevents parts from being bent.

Reference numeral 4 denotes a rear wheel guide member provided on the lower surface of the equally divided loading platform portion 1. In this example, the rear wheel guide member 4 is provided on the back surface of the first loading platform component 1a (more precisely, the rear wheel guide member 4 is The guide members 4 are provided on the rising inner wall surfaces on both sides of the back surface of the first loading platform component 1a.)
Rear wheel guide member piece 4a and second loading platform component 1b
The rail gap A is narrower toward the rear wheel guide member 4b than the rear wheel guide member 4a.

And as shown in Figs. 2 and 3, the equally divided loading platform 1
is in the extended state, the rear wheel guide members 4a, 4b
are installed consecutively.

Therefore, when the equally divided loading platform section 1 is in the extended state, the rear wheel guide is placed between the rear wheel guide member piece 4b whose rail interval A is narrow and a part of the rear wheel guide member piece 4a. The plate 7 is press-fitted and held.

Reference numeral 5 denotes a front wheel guide member provided on the lower surface of the equally divided loading platform 1. In this example, the front wheel guide member 5 is provided on the back surface of the first loading platform component 1a (more precisely, the front wheel guide member 5 are provided on the upright inner wall surfaces on both sides of the back surface of the first loading platform component 1a.)
Front wheel guide member piece 5a and second loading platform component 1b
It is composed of a front wheel guide member piece 5b provided on the lower surface and a front wheel guide member piece 5c provided on the lower surface of the third loading platform component 1c, and as shown in FIGS. 2 and 3, the equally divided loading platform section 1 When the front wheel is in the extended state, the front wheel guide member pieces 5a, 5b, and 5c are arranged in succession.

Therefore, when the equally divided loading platform is in the extended state, the front wheel guide plate 8 is pressed between the front wheel guide member piece 5c whose rail interval A' is narrow and a part of the front wheel guide member piece 5b. It is configured to fit and hold.

Reference numeral 7 denotes a rear wheel guide plate that is loosely fitted into the rear wheel guide member 4, and when the equally divided loading platform section 1 is in the folded state, the rear wheel guide plate 7 is attached to the rear of the first loading platform component 1a. It is located in the wheel guide member piece 4a, and when the equally divided loading platform part 1 is in the extended state, the rear wheel guide member pieces 4a and 4b provided as the first loading platform component part 1a and the second loading platform component part 1b. To position.

Reference numeral 8 denotes a front wheel guide plate that is loosely fitted into the front wheel guide member 5, and when the evenly divided loading platform section 1 is in the folded state, the front wheel guide plate 8 serves as the front wheel guide member of the first loading platform component 1a. When the equally divided loading platform section 1 is in the extended state, it is located at the front wheel guide member sections 5b and 5c provided in the second loading platform component 1b and the third loading platform component 1c.

9 is the rear wheel caster, this rear wheel caster 9
is fixed to the rear wheel guide plate 7 via a mounting plate 10.

In this example, reference numeral 11 denotes a rotatable front wheel caster, and this front wheel caster 11 is fixed to the front wheel guide plate 8 via a mounting plate 12.

In the figure, reference numeral 14 denotes a rear wheel stopper, and as shown in the third and fifth diagrams, this rear wheel stopper 14 is located on the lower surface of the first loading platform component 1a, and the rear wheel guide plate 7 is located in the first loading platform component. 1a and the second loading platform component 1b, it is locked at the rear end when the rear wheel guide plate 7 moves forward, and when the rear wheel guide plate 7 passes, a spring is applied. , and is locked to the rear end of the rear wheel guide plate 7.

Thereby, the rear wheel guide plate 7 is reliably stopped at the forward limit.

Further, by pressing the rear wheel stopper 14, the above locking is released, allowing the rear wheel guide plate 7 to move backward.

In the figure, reference numeral 15 denotes a front wheel stopper, and as shown in FIG.
It locks on the rear end when it reaches between the loading platform component 1b and the third loading platform component 1c, and is pressed by the forward movement of the front wheel guide plate 8 and when the front wheel guide plate 8 passes. It returns via a spring and is locked to the rear end of the front wheel guide plate 8.

Thereby, the front wheel guide plate 8 is reliably stopped at the forward movement limit.

Further, by pressing the front wheel stopper 15, the locking is released and the rear wheel guide plate 7 is allowed to move backward.

16 is a handle; in this example, handle 16
are inserted into handle attachment rings 17, 17a provided on the first loading platform component 1a or the third loading platform component 1c constituting the equally divided loading platform section 1.

In the figure, reference numerals 18 and 19 indicate shielding plates 18 and 19, and these shielding plates 18 and 19 are provided in such a manner that they can freely enter and exit accommodation holes 118 and 119 provided in the third loading platform component 1c.

Bending retaining portions 18a, 19a are formed at the insertion side tips of the shielding plates 18, 19, and when the shielding plates 18, 19 are folded into three stages as shown in FIG. When pulled out, the bending retaining parts 18a and 19a close to the accommodation holes 118 and 119.
It is held by retaining rods 128 and 129 provided on the exit side of the container, and is placed on the front and rear sides (referring to the left and right direction in FIG. 1) of the equally divided loading platform 1 that is folded into three stages.
The hanging end portions of the shielding plates 18 and 19 on the insertion side are retained by the third loading platform component 1c.

In addition, set screws 138 and 139 are provided at the bent ends of the shielding plates 18 and 19 on the drawer side, and as described above, when the shield plates 18 and 19 are in a hanging state, the set screws 1
38, 139 are retained on the lower surface of the first loading platform component 1a to ensure the above-mentioned hanging state, and the insertion side tips of the shielding plates 18, 19 are retained in the third loading platform component 1c. Together, the purpose is to ensure the three-stage folded state of the loading platform 1.

Further, the shielding plates 18, 19 are provided between the handle attachment rings 17, 17 or 17a, 17a.

In the figure, reference numeral 20 denotes a cover detachably provided on the evenly divided loading platform 1, and 21 is a hanging plate for suspending the front wheel guide member 5 from the lower surface of the evenly dividing loading platform 1.

Next, to explain how the present invention is used, the evenly divided loading platform section 1 has a first loading platform component 1 in this example.
a. It is composed of a second loading platform component 1b and a third loading platform component 1c, and is folded in a three-stage manner to form an evenly divided loading platform 1 in a three-stage folded state.

Then, pull out the shielding plates 18 and 19,
Shielding plates 18 and 19 are hung from the front and rear sides. After that, the set screws 138 provided on the shielding plates 18 and 19,
139, the shielding plates 18 and 19 will close to the first loading platform component 1 of the equally divided loading platform section 1 in the three-stage folded state.
a and the third loading platform component 1c, and through the locking of the shielding plates 18 and 19, the minimum dimension is
The folded three-stage folded state of the equally divided loading platform section 1 is maintained.

Also, in this case, as shown in the diagram, the rear wheel caster 9
is preferably located at the rear of the equally divided loading platform section 1. This means that when the trolley is being pulled,
This is convenient when climbing stairs, etc., and the distance between the front and rear wheel casters 11, 9 is widened, improving the stability of the trolley.

When attempting to extend the evenly divided loading platform 1 in such a state, first the shielding plates 18 and 19 are connected to the third loading platform component 1 constituting the evenly dividing loading platform 1.
When the first loading platform component 1c of the equally divided loading platform section 1 is held and lifted, the second
One end of the loading platform component 1b is pulled up via the hinge 3 provided between it and the third loading platform component 1c,
Finally, the second loading platform component 1b is placed upright above the tip of the first loading platform component 1a (of course, the second loading platform component 1b and the first loading platform component 1a are connected via the hinge 2). ).

After that, when the third loading platform component 1c is moved toward the front of the equally divided loading platform section 1 and lowered, the second loading platform component 1b is moved through the hinge provided between it and the first loading platform component 1a. Similarly, the third loading platform component 1c is located in front of the second loading platform component 1b via a hinge 3 provided between the third loading platform component 1b and the second loading platform component 1b. At this point, the evenly divided loading platform 1 is extended for the first time.

Thereafter, the front and rear wheel casters 9, 11 are loosely fitted to the front and rear wheel guide members 5, 4 provided on the lower surface of the equally divided loading platform 1, and the front and rear wheel guide plates 8, 7
This is a configuration in which the transition is made via .

That is, first, the front wheel guide plate 8 to which the front wheel caster 11 is attached passes through the front wheel guide member piece 5b provided in the second loading platform component 1b, and then passes through the front wheel guide member piece 5c provided in the third loading platform component 1c. When the front wheel stopper 15 is reached, the front wheel stopper 15 is activated, the front wheel caster 11 is fixed, and the front wheel guide plate 8 is
is the front wheel guide member piece 5b of the second loading platform component 1b.
and a front wheel guide member piece 5c of the third loading platform component 1c.
is held fixedly between.

Next, when the rear wheel guide plate 7 to which the rear wheel caster 9 is attached reaches the rear wheel guide member piece 4b provided on the second cargo platform component 1b, the rear wheel stopper 14 is activated and the rear wheel The caster 9 is fixed, and the rear wheel guide plate 7 is fixed between the rear wheel guide member piece 4a of the first loading platform component 1a and the rear wheel guide member piece 4b of the second loading platform component 1b. is maintained.

Therefore, the evenly divided loading platform 1 is held in an extended state, and the front wheel guide plate 8, which is loosely fitted into the front and rear wheel guide members 5 and 4 provided on the lower surface of the evenly dividing loading platform 1, is Between the third loading platform component 1c and the second loading platform component 1b, there is also a rear wheel guide plate 7.
are respectively located between the second loading platform component 1b and the first loading platform component 1a, and the continuous portion of the equally divided loading platform 1 is located between the front and rear wheel guide plates 8, respectively.
7, and the above-mentioned spread state is ensured.

In addition, folding from this extended state in a multi-step method is as follows.
The operation described above can be reversed. It goes without saying that the operation and procedure for folding from the extended state to the multi-step method, or the operation and procedure for changing from the folded state to the extended state, etc., are not limited to the above example.

``Effects of the invention'' As detailed above, the present invention provides an evenly divided loading platform for the loading platform of a cart that can be folded in multiple stages, and also allows the loading platform to be folded in multiple stages. A front and rear wheel guide plate having front and rear wheel casters is positioned over the continuous portion of the evenly divided loading platform to ensure that the evenly dividing loading platform is in an extended state, and also to ensure that the evenly dividing loading platform is in a folded state. is held through the locking of the shielding plate.

This has the following effects.

(1) By inserting the front and rear wheel guide plates into the front and rear wheel guide members provided on the evenly divided loading platform, the extended state of the evenly divided loading platform can be ensured, and the stability of this extended state can be maintained. You can expect it.

(2) It is an equal division method, which allows for the minimum and maximum dimensions, allowing for the use of a large area as a transport platform.
It can be expected to be more compact when stored.

(3) The minimum folded state of the evenly divided loading platform is maintained through shielding plates that are locked on the front and rear sides.

Therefore, a reliable folded state is ensured, and the appearance is also extremely good.

(4) When the front and rear wheel guide plates are extended evenly divided loading platform,
Located in the connected part of each loading platform component of the split system,
In addition, since it is press-fitted and fixed, it helps to prevent the equally divided loading platform from bending, and the extended state can be maintained reliably and firmly.

(5) Through the above-mentioned effect, a flat plate surface is secured on the surface of the uppermost loading platform component in the folded state of the evenly divided loading platform.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of the folded state, Fig. 2 is a side view of the extended state, Fig. 3 is a bottom view of Fig. 2, and Fig. 4 is a side view of Fig. 2. The fifth is a sectional view showing the relationship between the rear wheel caster and the rear wheel stopper. DESCRIPTION OF SYMBOLS 1... Equally divided loading platform part, 1a... First loading platform component, 1b... Second loading platform component, 1c... Third loading platform component, 2, 3... Hinge, 4... Rear wheel guide Members, 4a, 4b... Rear wheel guide member piece, 5...
...Front wheel guide member, 5a, 5b, 5c... Front wheel guide member piece, 7... Rear wheel guide plate, 8...
Front wheel guide plate, 9... Rear wheel caster, 10,
12...Mounting plate, 11...Front wheel caster, 14
... Rear wheel stopper, 15 ... Front wheel stopper, 16 ... Handle, 18, 19 ... Shielding plate,
20...cover, 21...hanging plate.

Claims (1)

[Scope of Claim for Utility Model Registration] An evenly divided loading platform that is foldable in a multi-step manner and is equipped with a handle and guide member pieces for front and rear wheels on the back side thereof, and the evenly divided loading platform is connected via a hinge. When the front and rear wheel guide member pieces are extended in the same plane, the front and rear wheel guide member pieces are formed on the same horizontal plane on the back surface of the equally divided loading platform, and between the loading platform components that make up the evenly dividing loading platform. a pair of front wheel guide members and a rear wheel guide member that are connected to each other; and a lowermost portion that is slidably and loosely fitted into the front wheel guide member and when the equally divided loading platform is in a folded state. a front wheel guide plate provided with the front wheel caster, which is located in the loading platform component and is disposed at a continuous portion of the loading platform component when the equally divided loading platform is in an extended state; and the rear wheel guide member; is slidably and loosely fitted, and when the equal-divided loading platform is in the folded state, it is located at the lowest loading platform component, and when the even-divided loading platform is in the extended state, it is located in the other loading platform component. A rear wheel guide plate equipped with a rear wheel caster arranged in a continuous portion, and a rear wheel guide plate that is suspended from the front and rear when the equally divided loading platform is folded in multiple stages, and that is configured to maintain the folded state. A dolly for transportation, shopping, etc., comprising: a shielding plate that is secured and can be stored in a storage hole provided in the equally divided loading platform when not in use; The trolley for transportation, shopping, etc. as set forth in claim 1 of the utility model registration claim, wherein the handles provided on the equally divided loading platform are freely attachable and detachable to the front and rear of the equally dividing loading platform. The transportation vehicle according to claim 1, wherein the rear wheel casters provided on the equally divided loading platform are configured to protrude rearward from the loading platform when the equally dividing loading platform is folded; A trolley for shopping, etc.