JP3116082B2 - Forklift truck rain guard - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rain protector for a forklift truck which prevents a load on a forklift truck (hereinafter, abbreviated as a forklift in the present specification) which is carried on a roofless passage during rainfall. About.
In particular, it is not only easy to attach / detach to / from a forklift, but also to deploy and contract (fold) the waterproof sheet on the forklift with one touch and one action. The present invention relates to a rain protection device for a forklift, which has a simple construction and is extremely excellent in practical use, which can be easily manufactured.

[0002]

2. Description of the Related Art When a lift is used exclusively in a house, such as in a factory or a warehouse, there is a concern that the transported goods (baggage) will be subjected to rain and deteriorate the quality of the transported goods. Absent. However, in actual work, not only such transportation and transport inside the house, but also transportation in outdoor aisles with no roof, such as factories (buildings) and warehouses (buildings), warehouses (buildings) and warehouses (buildings). It is often a transfer. In such a case, in the rainy state, the load carried on the forklift is transported with rain, and if the load is, for example, a bare copper wire coil, the quality is deteriorated. In the past, transporting and transporting work during rainfall would have to be covered with a waterproof sheet in one indoor space, wrapped in a forklift, and removed in the other indoor space. It required messy work.

[0003] Therefore, when a load that should not be wetted by rain is placed on a forklift during rainfall and transported,
If a rain protector suitable for mounting on a forklift can be realized that can save such complicated work as described above, it will bring good news to the worker and the industry.

[0004] Therefore, the present inventors first created a rain protector suitable for being mounted on a forklift so as to prevent the transported object from being wet by rain when transported outdoors with a forklift during rainfall. And filed an application for this.
However, the present inventors have continued further studies, and have arrived at the present invention which has been further improved in terms of the configuration of the rain guard and the handling operation.

[0005]

That is, an object of the present invention is to provide and provide a more improved rain protection device in terms of construction and handling that is suitable for mounting on a forklift. is there.

[0006]

That is, claim 1 of the present invention.
The invention of "a rain protector for a forklift truck for protecting luggage on a fork of a forklift truck from rainfall, the rainproofer (a) abuts a rear surface side against a backrest of a forklift truck, A frame or / and a plate-shaped body provided detachably on / from the rest, and (b) mounted on the mounting frame.
Expanding and supporting a waterproof sheet on the front side of the mounting frame, or a sheet deploying and supporting means that can be folded,
(C) the mounting frame member, or provided on frame and backrest with said mounting, mounting frame and bars the instrumentation and desorption with backrest
The mounting frame can be moved up and down with respect to the
Was made with instrumentation and desorption unit, expand the support means of said sheet (a) a plurality of sheet supporting bone, on the left and right portions of the mounting frame or (on the front side) by the left and right portions protruding left and right arms, (B) pivotally supported at the lower end of the body,
Each of the sheet supporting bones is arranged between the sheet supporting bones adjacent to each other so as to form a roof surface and a downwardly inclined tip eaves surface when a sheet stretched at its upper end is developed. A rain protector for a forklift truck, wherein an opening angle and a length are set. ". According to a second aspect of the present invention, there is provided a rain protector for a forklift truck according to the first aspect, wherein the sheet deploying and supporting means is provided with (c) an arm extending over the front side at the left and right portions of the mounting frame. (D) a forklift truck rain shelter, wherein a plurality of seat supporting bone groups are rotatably supported on the overhanging arm members at positions spaced apart from each other sequentially as pivot points. Utensils. " According to a third aspect of the present invention, there is provided a rain protector for a forklift truck according to the first or second aspect, wherein an opening angle between each of the sheet supporting bones is (e) a wire-like material stretched between the sheet supporting bones, A rain guard for a forklift truck, wherein each sheet supporting bone is fixed at regular intervals of the wire-like material. " According to a fourth aspect of the present invention, there is provided a rain protector for a forklift truck according to any one of the first to third aspects, wherein each of the sheet supporting bones is provided on (f) the left and right portions of the mounting frame or the left and right sides of the mounting frame. A forklift truck having a staple-like or inverted U-shaped, left-right connected structure that is pivotally supported on left and right arms attached to the part and has shaft ends at the left and right pivots. Rain shelter. " According to a fifth aspect of the present invention, there is provided a rain protector for a forklift truck according to any one of the first to fourth aspects, wherein each of the seat supporting bones has (g) a variable structure capable of extending and contracting in its length direction. A rain guard for forklift trucks. " Claim 6
According to the invention of the present invention, in the rain protection device for a forklift truck according to any one of claims 1 to 5, (h) at least a shaft fulcrum of the most recent sheet supporting bone is used as a supporting and deploying means of the waterproof sheet. A rain protector for a forklift truck, which is provided on a support bone of a rear position thereof. " Claim 7
According to the invention, in the rain protector for a forklift truck according to any one of claims 1 to 6, the means for attaching / detaching the attachment frame and the backrest includes: (i) at least the right and left ends of the upper end of the attachment frame. An inverted U-shaped or inverted L having an interval corresponding to the thickness of the upper end of the backrest.
A rain protector for a forklift truck, which is provided with a character-shaped locking device. ". According to an eighth aspect of the present invention, there is provided a rain protector for a forklift truck according to any one of the first to seventh aspects, wherein the attachment / detachment means for attaching / detaching the attachment frame and the backrest is (j) a component attached to the attachment frame. A rain guard for a forklift truck, wherein the stopper is attached to a plurality of positions in the vertical direction of the attachment frame. "

[0007]

The rain protector according to the present invention is mounted on the backrest of the forklift by abutting the same, and does not hinder the work of loading the load placed on the forklift. of the distance between the luggage and rain tool it is possible to prevent the rainwater without having to change, further, are so-desorption work with the backrest, rain
It can be easily performed only by raising and lowering the protection device, and the rain protection device has a basic function that it can be made compact when not in use and not bulky when stored. And also has the following excellent action.

That is, the rain protector for a forklift of the present invention expands or contracts (folds) the waterproof sheet.
The mechanism for this purpose does not adopt a configuration in which a plurality of seat supporting bones as its constituent members are connected to each other and driven together with other seat supporting bones, and the contact point of each seat supporting bone is only a pivot point. In other words, there is no contact between the sheet supporting bones as a mechanism for unfolding and folding the seat, and it is a rotating mechanism only at the shaft fulcrum, and when the operator spreads and folds the rain guard attached to the forklift (that is, the seat is folded). The operation can be easily and smoothly performed by a forklift operator, so to speak, with one touch and one action to perform the unfolding and folding), and the operability is extremely excellent. In addition, the forklift rain guard of the present invention adopts a configuration in which the center of gravity of the waterproof sheet supported by the sheet supporting bone group comes forward from the pivot of the sheet supporting bone and is deployed from the front side of the forklift. Even if there is a wind, the mechanism consisting of the seat supporting bone is stable without shrinking, so that the waterproof sheet does not inadvertently shrink (fold) and wet the load on the fork. Further, since the front side has a hanging eaves configuration, it is possible to more reliably prevent rain from the front of the forklift. In addition, the rain protector for a forklift of the present invention has a very simple structure, is easy to manufacture, and can further reduce the manufacturing cost.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments and the accompanying drawings. FIG. 1 shows a forklift 1
FIG. 2 is a perspective view showing a state in which an example of a forklift rain guard 3 of the present invention is mounted on a backrest 2 (illustration of a main part) and deployed. FIG. 2 is a perspective view of the rain protector 3 of FIG. 1 in a contracted (folded) state. 1 and 2
Here, in order to easily understand the configuration and operation of the rain protector 3, the illustration of the waterproof sheet that is fixed and covered on the support bone group 7 of the waterproof sheet described later is omitted. FIG. 3 is a perspective view from the rear side of the mounting frame 4 in which an example of mounting / detaching means is mounted on the mounting frame 4 of the rain protector 3 of the present invention, and also in order to avoid complication of the drawing. The illustration of the support means for deploying the sheet on the front side of the mounting frame is omitted. FIG. 4 is a side view showing an example of the sheet deployment and support means 5 constituting the rain protector 3 of the present invention.

In the rain guard 3 of the present invention, the mounting frame 4 to be mounted on the forklift-side backrest 2 is mounted on a plurality of sheet supporting bones 7 constituting the supporting means 5 for deploying the waterproof sheet, and mounted thereon. This is for supporting the waterproof sheet and for itself to be able to be attached to the backrest 2 of the forklift 1 without backlash and to be mounted thereon.
For attaching and detaching operation, hold the mounting frame 4 with both hands,
Is simply completed by simply lowering or ascending along the line, and the operation can be performed easily and easily. As shown in FIGS. 1, 2 and 3, even if the frame is formed in a rectangular shape so as to be able to abut against the front surface of the backrest 2 without play, for example, by using an L-shaped steel, Depending on the structure of the backrest portion, such as the mounting structure of the fork and the structure for mounting the fork to the backrest 2, even a plate-like body may be further partially attached to the frame, or only the plate-like body may be used. It may be a rectangular shape. In short, the mounting frame 4 may be of any structure and member which can abut integrally with the backrest 2 and which can be attached and fixed to the backrest 2 without play in the abutting state. The shape is not necessarily limited to a square. Also, the dimension in the width direction may be appropriately determined in advance according to the conveyed goods (baggage) to be transferred. Of course, this mounting frame 4 is provided with a plurality of sheet support bones 7 (7a, 7
b, 7c,..., 7y, 7z) and a waterproof sheet thereon, etc., and are generally made of a rigid metal material such as an iron material or an aluminum material.
The material may be a plastic material, natural wood, or a mixture thereof.

As described above, the mounting frame 4 needs to be able to be easily attached to and detached from the backrest 2 in a state where it is in contact with the backrest 2 of the forklift 1. FIG. 3 shows a typical example of the attachment / detachment means 6 attached to the rear side of the attachment frame 4. That is, the mounting / removing means 6 here is an inverted U-shaped or inverted L which is fixed to the left and right ends of the upper end of the mounting frame 4 and has a space corresponding to the thickness of the upper end of the backrest 2 of the forklift 1. It is a character-like locking tool 6a, 6a. With such a configuration, the operator can operate the mounting frame 4
When the user holds the left and right sides of the backrest 2 and lowers it from above the front of the backrest 2, the locking tool is hooked on the upper end of the backrest 2 and can be attached to the backrest 2. When the mounting frame 4 is detached from the backrest 2, the reverse operation is performed, that is, the operator holds the mounting frame 4 in his hand and lifts it upward from below the front of the backrest 2. The locking tool is disengaged from the upper end of the backrest 2, and the entirety can be disengaged. In the above, the operator holds the mounting frame 4 in his hand and moves it up and down.
The backrest 2 of the forklift 1
Although it was explained that mounting and demounting to and from
Place the product in a leaning position, and forklift 1
And move the fork (hence the backrest 2) up and down
By attaching and detaching to and from the backrest 2
Can be. That is, when the fork of the forklift 1 enters
There is a lower space with a width and depth that can be moved up and down
Mounting / removing means 6 of the mounting frame 4 on the raised floor
So that it rests on the floor,
Advance the forklift 1 to the fork (follow
The backrest 2) to raise the backrest.
The crest 2 is provided with mounting / detaching means 6 for the mounting frame 4 in the mounted state.
To be mounted on the forklift 1.
Fork wrist 1 on which the mounting frame 4 is mounted
If you move it down and lower the fork, the mounting frame 4
The mounting frame 4 remains on the backrest 2
Can be detached from. As described above, the present invention
Means that the attachment / detachment work with the backrest 2 is
(That is, rain guards)
It is also possible by raising and lowering the work.

The attachment / detachment means 6 is not limited to the above-described example of the left and right locking members 6a. Although illustration is omitted, for example,
At the upper end of the mounting frame 4, at least at the left and right ends thereof, bolt-shaped pieces with bulging parts protruding toward the rear side of the mounting frame 4 are attached. By attaching a groove-shaped piece provided with a concave or U-shaped notch groove for receiving the bolt-shaped piece, the same function as that of the left and right locking tools 6a can be performed.
Instead of the groove-shaped pieces provided on the left and right upper ends on the backrest 2 side, the structure on the side receiving the bolt-shaped pieces has an open shape at the top so that the bolt-shaped pieces can be easily inserted from above. It is convenient even if it is a receiving device which consists of a pair of spring-like pieces which grasp a shape-like piece from the right and left. Further, instead of the groove-shaped piece or the spring-shaped receiving member, a concave or U-shaped notch itself for receiving the bolt-shaped piece may be provided directly at the upper end of the backrest 2 to obtain the same function. The protruding portion of the bolt-shaped piece is for preventing the bolt-shaped piece from being pulled out from the concave or U-shaped notch groove or the spring-shaped receiving member in the length direction of the bolt-shaped piece.

The left and right locking members 6a as described above are extremely simple as the attaching / detaching means 6, and therefore are easy to manufacture and maintain. In addition, such a locking device 6
Since the mounting / removing means 6 by a can be achieved only by moving the mounting frame 4 up and down, not only the manual operation but also the installation location is required .
As described above, it is also possible that the worker moves the fork up and down while riding on the forklift by using the high floor platform . In this case, the load operation of manually lifting the mounting frame 4 can be omitted. .

FIG. 4 is a side view showing a preferred example of the deploying and supporting means 5 for the waterproof sheet S in the rain protector 3 of the present invention shown in FIGS. In the case of this example, the sheet supporting and supporting means 5
The left and right arms 8 attached to the left and right portions of the mounting frame 4 so as to protrude to the front side thereof, and a plurality of seats rotatably supported at the lower ends of the arms 8 on the arm 8 respectively. The support bone 7 group (7a, 7b, 7c,..., 7y, 7z), and the wire-like object 10 for setting each opening angle of the seat support bone 7 group. That is, each seat supporting bone 7a,
7b, 7c,... Sequentially on the left and right arms 8 projecting from the left and right ends of the mounting frame 4 to the front side thereof, except for the seat supporting bone 7a directly mounted on the mounting frame 4. .. Are rotatably supported at spaced positions 9b, 9c,..., And the opening angle θ between each seat supporting bone is shown.
Are connected in order by a non-corrosive and flexible stainless steel wire 10 having one end fixed to the mounting frame 4. In this case, when the sheet supporting bones 7 are deployed, the center of gravity of each of the sheet supporting bones 7 moves to the tip end side of the fork from its own fulcrum 9 to bend forward, and is placed on the upper end of each of the sheet supporting bones 7. By applying the load of the waterproof sheet, the deployed state in the forward bent state can be stably maintained, and the deployed state does not collapse even if there is a wind from the front of the forklift. In addition, at the time of folding, the center of gravity of each seat supporting bone 7 moves from its own pivot point 9 to the mounting frame 4 side, and falls into the mounting frame 4 side as a whole, so that the state is stable. And does not develop suddenly.

In FIG. 4, when each sheet supporting bone 7 is unfolded, a waterproof sheet S stretched over the upper end of each sheet supporting bone 7 is provided.
However, so that rain does not accumulate thereon, a roof surface S1 such as a horizontal or inclined roof surface or a dome-shaped or mountain-shaped convex shape bulging upward, and a tip end following the roof surface S1 are In order to form the eaves surface S2 that inclines downward and prevents wind and rain from the front of the forklift, the length may be determined in advance in consideration of the interval between the respective sheet supporting bones 7. From the above setting, each seat supporting bone 7 may be configured as a member having a fixed length from the beginning, that is, a member having a constant length.
Further, as shown in FIG. 4 and FIG. 5 described later, a variable expansion and contraction structure including at least two members p1 and p2 may be used. However, with the latter configuration, the length can be adjusted after manufacturing as a rain guard, so that Waterproof sheet S stretched over
This is convenient because the stretched state of the can be adjusted sufficiently.

FIG. 5 is a front view showing an example of one sheet supporting bone 7 constituting the rain guard 3 of the present invention. The seat supporting bones 7 may be separately provided on the left and right sides, but in this case, if the strength configuration as the rain protector 3 and the easiness in the production thereof are taken into consideration, it is shown in FIG. As described above, it is more preferable that the staple shape or the inverted U-shape having a shaft end at the shaft fulcrum 9 of the left and right arms 8 is connected to the left and right. In this case, since a portion serving as a connecting portion on the upper portion of the sheet supporting bone 7 is a place where a waterproof sheet is placed and stretched there, at least a staple shape in a horizontal state without dents, and furthermore, as shown in the example of FIG. More preferably, it is a bulged inverted U-shape.

Although the use of the stainless steel wire 10 to fix the opening angle θ between the respective sheet supporting bones 7 has been described above, it is a matter of course that the wire is not limited to the stainless steel wire but may be a wire made of a normal fiber material. You may. In addition to such a flexible and non-corrosive wire-like material, one end of the two rods is rotatably supported, and the other end is placed between adjacent sheet supporting bones 7. In the configuration of sequentially joining,
The rod-shaped piece or the like can also be used (not shown). This rod can be made of metal or plastic. However, the fixing of the opening angle between the sheet supporting bones 7 by the rod-shaped pieces stops the movement of each sheet supporting bone by the rod-shaped pieces themselves and stabilizes the opening between the sheet supporting bones. When the rod-shaped piece is folded and the gap between the expanded sheet supporting bones is contracted, and when the rod-shaped piece in the folded state is extended and expanded between the sheet supporting bones in a contracted state, both of the two pieces are used by both hands of the operator. Contraction and deployment operations using finger operation and arm strength are required. The connection with this rod is
This increases the number of components as a rain guard and increases the number of manufacturing steps. Therefore, when the worker is on a forklift, so-called one-touch, one-action operation enables contraction and deployment operation, and its components can be simplified and the manufacturing process can be simplified. The adoption of a shape is more preferred in practice.

FIG. 4 shows the state of the art seat support bone 7.
The pivot point is provided on the supporting bone of the seat supporting bone 7y at a position z is one position behind the supporting bone, and the opening angle is kept constant by a stopper (not shown) on the supporting bone. . This is usually the case when the roof surface S1 and the tip eave surface S2 of the waterproof sheet S are extended as much as possible, and the vertical position of the tip eave surface is not suddenly lowered. , The seat support bone at the tip,
Although it is necessary to use a longer member that is longer, this embodiment is a preferred configuration example that does not use such a long and heavy member and does not increase the number of constituent members. However, the present invention is not necessarily limited to this configuration example.

In the above embodiment, the seat deployment support means 5 is provided with a plurality of sheet support bones 7 provided on left and right arms 8 projecting from the left and right portions of the mounting frame 4 to the front side thereof. However, this arm 8 is not provided, and the group of seat support bones 7 is directly supported on the right and left ends of the mounting frame 4 with a common axis as a fulcrum, as in the case of a shaft configuration of a fan bone. It can also be configured. Also in this case, the deployment of the waterproof sheet can be performed by one touch and one action as in the above-described embodiment, and the deployed sheet has a center of gravity at a position before the pivot of the sheet supporting bone 7 group, so that it can be viewed from the front of the forklift. It is stable even when fanned by the wind, and there is no danger of the sheet support bones 7 contracting due to the wind. In the case of this configuration, when the group of seat supporting bones 7 is contracted, the group of seat supporting bones 7 stands on the left and right ends of the mounting frame 4, which is a state that can easily return to the deployed state. Therefore, appropriate means for fixing the group of seat support bones 7 to the mounting frame 4 in this contracted state may be provided.

As described above, it is effective that the structure of each seat supporting bone 7 has a variable length structure.
As shown in FIG. 5, it is necessary to reduce the overall weight of the rain protection device on the premise of mounting and dismounting as much as possible, and furthermore, to form a stronger structure that is stable against wind and the like. That is, it is necessary to balance the reduction in weight and the rigidity, and it is not desirable that the seat support bone 7 is strong but unnecessarily heavy. Therefore, it is possible to further increase the height of the waterproof sheet on the fork while maximizing the use of the height of the seat supporting bones 7, or to gradually increase the individual height of such a seat supporting bone 7 in order. Being able to adjust the height operation at once without re-adjustment is a requirement in actual operation. FIG. 6 is a front view showing a preferred example of the main mounting frame 4 that enables this. That is, the left and right locking members 6a attached to the upper end of the mounting frame 4 as the mounting / removing means 6 so that the mounting frame 4 itself can be mounted / removed on the backrest 2 by changing its vertical position. In this example, a horizontal frame is provided at a corresponding lower position in addition to the horizontal frame 6a, and left and right locking members 6b, 6b are attached to the horizontal frame. That is, with this configuration,
When the mounting position of the locking devices 6a, 6a to the backrest 2 is low, the mounting of the locking devices 6b, 6b can be easily and easily changed, and the height of the waterproof sheet can be immediately adjusted to a higher level. it can.

The waterproof sheet may be a plastic film or sheet material, or a sheet material made of natural or synthetic fiber which has been conventionally used as a so-called tent material. is necessary. However, when the mounting / removing operation with the forklift of the rain protector of the present invention including this waterproof sheet is manually performed, it is required that the weight be as light as possible as described above. A plastic sheet that is as thin as possible is desirable. Further, transparency is more desirable. It is desirable that the waterproof sheet be configured so as to cover at least the left and right sides of the forklift fork.

[0022]

As described above, the present invention does not carry out outdoor transportation (movement) of articles whose quality deteriorates in the event of rain or requires a subsequent recovery process by means of a forklift during rainfall. However, since it is designed to be mounted on a forklift carrier for waterproofing of the transported goods, the work of hanging or removing the waterproof sheet on the transported goods each time is eliminated, and the complexity of waterproofing is eliminated. It has a great feature in that the processing is eliminated, and it has a feature that it can be easily attached / detached to / from a forklift and can be made compact when not in use. Further, the rain guard of the present invention has a simple structure,
The operation of deployment and folding can be performed easily and smoothly, and the structure is stable even when there is a wind at the time of deployment. Furthermore, because of the simplicity of the configuration, the production is easy and the production cost can be further reduced.

[0023]

The rain guard of the present invention is particularly effective in transporting an object which is not desirable to be exposed to rainwater when it is raining. However, it is not limited to such an object, and it prevents rainwater during rainfall and uses a forklift. Normal transfer (during non-rainfall)
It can be easily carried out in the same manner as described above, and is not limited to articles to be transferred, and can be used by being attached to all forklifts.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a rain protector of the present invention, which is attached to a backrest of a forklift and is in an extended state.

FIG. 2 is a perspective view when the rain protector in FIG. 1 is set in a non-extended state by a backrest of a forklift.

FIGS. 3 (a) and (b) are perspective views from the rear surface of the mounting frame of the rain guard of the present invention, in which an example of means for attaching / detaching to / from a backrest is mounted on the mounting frame.

FIG. 4 is a side view showing an example of a sheet deploying and supporting means constituting the rain protector of the present invention.

FIG. 5 is a front view showing an example of a sheet supporting bone constituting a sheet deployment supporting means in the present invention.

FIG. 6 is a front view showing a preferred example of a mounting frame constituting the rain protector of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Forklift 2 Backrest 3 Rain guard 4 Mounting frame 5 Waterproof sheet deployment and support means 6 Mounting / removing means of mounting frame 6a, 6b Locking tool 7 (7a, 7b, 7c, ..., 7y, 7z) Seat support bone 8 Arm 9 (9b, 9c, 9d, ...) Shaft fulcrum θ (θ1, θ2, θ3, ...) Open angle between seat support bones 10 Stainless wire S Waterproof sheet S1 Roof surface of tarpaulin S2 eaves surface of tarpaulin

Claims (8)

(57) [Claims] 1. A rain protection device for a forklift truck for protecting luggage on a fork of a forklift truck from rainfall, the rain protection device having (a) a rear surface abutting against a backrest of the forklift truck, and (B) deployment of a seat mounted on the rest so as to be attachable / detachable, and (b) a seat mounted on the mounting frame, which can be spread and supported or foldable on the front side of the mounting frame. (C) mounting and dismounting the mounting frame and the backrest provided on the mounting frame or the mounting frame and the backrest, and moving the mounting frame relative to the backrest.
The sheet deployment and support means comprises: (a) a plurality of sheet support bones extending to the left and right portions of the mounting frame or to the front side at the left and right portions. The left and right arms are rotatably supported at their lower ends, respectively.
(B) the sheet supporting bones are formed by forming a roof surface and a sheet supporting bone adjacent thereto so as to form a downwardly sloping front end eaves surface when a seat stretched at its upper end is developed. A rain protector for a forklift truck, wherein an opening angle and a length are set between them. 2. The forklift truck rain protector according to claim 1, wherein the sheet deployment and support means comprises:
(C) Right and left arms of the mounting frame are provided with left and right arms projecting from the front side thereof, and (d) a plurality of seat supporting bone groups are sequentially spaced from each other on the projecting arms. A rain protector for a forklift truck, wherein the rain protector is rotatably supported on a shaft as a pivot point. 3. The rain protection device for a forklift truck according to claim 1, wherein an opening angle between the respective sheet supporting bones is: (e) a wire-like object is stretched between the respective sheet supporting bones; Is fixed at regular intervals of the wire-shaped material. 4. The rain protector for a forklift truck according to claim 1, wherein each of the seat supporting bones is mounted on (f) the left and right portions of the mounting frame or on the left and right portions of the mounting frame. A staple-shaped or inverted-U-shaped rain protection device for a forklift truck, which is pivotally supported on left and right arms and has a shaft end at the left and right pivots. 5. The rain guard for a forklift truck according to claim 1, wherein each of the seat supporting bones has (g) a variable structure capable of extending and contracting in a length direction thereof. And forklift truck rain shelter. 6. The rain protector for a forklift truck according to claim 1, wherein (h) at least the most advanced seat supporting bone, and a shaft fulcrum thereof is used as a supporting and deploying means of the waterproof sheet. A rain protector for a forklift truck, which is provided on a supporting bone behind the supporting bone. 7. The rain protector for a forklift truck according to claim 1, wherein the means for attaching and detaching the attachment frame and the backrest comprises: (i) at least the right and left ends of the upper end of the attachment frame. A forklift truck rain guard, wherein an inverted U-shaped or inverted L-shaped locking member having an interval corresponding to the thickness of the upper end portion of the backrest is attached thereto. 8. The rain protection device for a forklift truck according to claim 1, wherein the attachment / detachment means for attaching / detaching the attachment frame and the backrest comprises: (j) a locking device attached to the attachment frame. A rain protector for a forklift truck, which is mounted at a plurality of vertical positions of the mounting frame.