JP7199976B2 - Fall prevention jig - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tipping prevention jig for preventing an article from tipping over during transportation when the article is carried on a hand lifter or rollers.

When transporting a relatively tall and heavy item such as a thin self-supporting control panel using a hand lifter or a roller, conventionally, in order to prevent the item from tilting and falling during the transport work, Multiple steel pipes and screw-type connecting fittings are used to form a fall-prevention structure that encloses items placed on hand lifters and rollers, and this structure is slightly raised from the floor. A method of transporting the structure and the article in an integrated state is adopted.

In the structure formed to surround the article, a part of the bottom surface of the structure comes into contact with the floor surface before the article begins to tilt and fall, thereby tilting the article at a predetermined angle. Since it has a function of regulating the inside of the article, when the article is tilted during the transport operation, further tilting is prevented, and as a result, the article can be prevented from overturning.

On the other hand, as a conventional technology related to the present invention, for example, there is an "apparatus overturn prevention device" described in Patent Document 1. This "equipment overturn prevention device" is provided on the side of the main body supported by a plurality of main legs provided on the bottom surface, and has auxiliary legs that can take both retracted and deployed postures with respect to the main body. The auxiliary leg is rotatably connected to the main body with its upper end as a fulcrum and is developed from the side of the main body.

JP-A-2005-227633

As described above, when transporting an article using a conventional overturn prevention structure, at the start of transportation, a plurality of steel pipes and screw-type connecting fittings are combined to assemble the structure around the article, Since it is necessary to disassemble and remove the structure by loosening the screws of the connecting fittings after it is transported to the destination, a great deal of labor and time is spent on the assembly and disassembly of the structure. In particular, when there are a plurality of articles to be transported, the assembly work and disassembly work of the structure must be performed many times. .

In addition, since the conventional overturn prevention structure must be formed so as to surround the five surfaces of the object to be conveyed other than the bottom surface, the larger the object to be conveyed, the larger the object to be conveyed. If the width is narrow, there may be situations where it cannot be used.

Furthermore, since the conventional overturn prevention structure uses a large number of screw-type connecting fittings, the work itself of tightening and loosening the screws is not only complicated, but also induces forgetting to tighten the screws. We cannot deny the possibility.

On the other hand, the "apparatus fall prevention device" described in Patent Document 1 is effective as a fall prevention device for specific devices such as copiers, but it is used for conveying relatively heavy articles such as thin independent control panels. is difficult to use for

Therefore, the problem to be solved by the present invention is to provide an overturn prevention jig that is relatively small in size, can be attached to and removed from an object to be conveyed easily and in a short time, and exhibits an excellent overturn prevention function. is to provide

A jig for preventing overturning according to the present invention includes a support frame that can be arranged so as to surround an object to be transported on a transport aid such as a hand lifter or a roller placed on a floor;
at least a pair of clamping means provided on the support frame for attaching the support frame arranged to surround the object to be transported to the object to be transported in a state in which the frame is lifted from the floor surface;
a plurality of legs provided on the support frame for limiting the tilting range of the object to be conveyed to which the support frame is mounted within a predetermined angle;
At least one of a front portion and a rear portion of the support frame is capable of being opened and closed.

In the overturn prevention jig, it is desirable that the position of the clamping means in the support frame can be changed in the vertical direction.

In the overturn prevention jig, it is preferable that the support frame is provided with wheels.

In the overturn prevention jig, it is desirable that the position of the wheel relative to the support frame can be changed in the vertical direction.

In the overturn prevention jig, it is desirable that the support frame can be disassembled into a plurality of constituent members.

According to the present invention, it is possible to provide an overturn prevention jig that is relatively small, can be attached to and removed from an object to be transported easily and in a short period of time, and exhibits an excellent overturn prevention function.

BRIEF DESCRIPTION OF THE DRAWINGS It is a partially-omission front view which shows the overturn prevention jig|tool which is embodiment of this invention. FIG. 2 is a partially omitted plan view of the overturn prevention jig viewed from the direction of arrow A in FIG. 1 ; FIG. 2 is a partially omitted side view of the overturn prevention jig as viewed in the direction of an arrow B in FIG. 1 ; 3 is an exploded view with partial omission of a portion indicated by an arrow C in FIG. 2; FIG. FIG. 4 is a side view showing a state in which a holding member is raised in the overturn prevention jig shown in FIG. 3 ; FIG. 2 is a partially omitted front view showing a use state of the overturn prevention jig shown in FIG. 1 ; FIG. 7 is a partially omitted front view showing a state in which an object to be transported is tilted while being transported using the overturn prevention jig shown in FIG. 6 ;

A tipping prevention jig 100 according to an embodiment of the present invention will be described below with reference to FIGS. 1 to 7. FIG.

As shown in FIGS. 1 to 4, the overturn prevention jig 100 according to the present embodiment includes a fence-like support frame 10 and a pair of extendable pinching means provided on the left and right sides of the support frame 10. 20L and 20R, four legs 30 provided on the bottom surface of the support frame 10, and wheels 40 provided on the outer surfaces of the four legs 30, respectively.

As will be described later, the front part and the back part of the support frame 10 can be opened and closed. Therefore, as shown in FIG. It can be arranged so as to surround the object T.

As shown in FIGS. 1 and 3, the support frame 10 includes a pair of gate-shaped frames 11, 11 located on the left and right side surfaces thereof, and gate-shaped frames 11, 11 on the front and rear sides of the support frame 10. and a plurality of sets of connection frames 12, 12 for releasably connecting the .

As shown in FIG. 3, the gate-shaped frame 11 includes a pair of pillars 11a, 11a arranged vertically with a predetermined distance in the front-rear direction of the support frame 10, and a central portion of the pillars 11a, 11a in the height direction. and a connecting member 11c having a fallen U-shape connecting the upper end sides of the struts 11a, 11a. A box 11d having an open upper surface is attached near the center of the reinforcing member 11b in the longitudinal direction. The box 11d is a member for housing auxiliary shafts 22b, 22c, etc., which will be described later.

The pillars 11a and 11a and the connecting member 11c are made of square tubular steel. The 11g, 11g side is slidably inserted. A slit 11s having a predetermined length is formed in the connecting portion 11f of the connecting member 11c along the length direction of the connecting portion 11f. A connecting portion 11f of the connecting member 11c and the upper end portion 11g side of the support 11a are fixed by a screw 11t.

As shown in FIGS. 1 and 2, two sets of connecting frames 12 are arranged at vertically separated positions on the front portion of the support frame 10 . The connecting frame 12 includes a fallen U-shaped connecting plate 12a, connecting pieces 12b extending downward from both ends of the connecting plate 12a, and bolts and nuts 12e attached to portions near both ends of the connecting plate 12a. and a brace plate 12c rotatably pivoted therethrough.

The connecting frame 12 positioned above the front part (and back part) of the support frame 10 is provided near the upper end of the front (and back) of the connecting parts 11f, 11f of the left and right connecting members 11c, 11c. The connecting pieces 12b, 12b are inserted into the pocket-shaped joints 11e, 11e from above, respectively, and the lower ends of the brace plates 12c, 12c are attached to the joints 11f, 11f of the connecting members 11c, 11c using thumb screws 12d. It is fixed by fastening on the front (as well as the back).

The connection frame 12 positioned in the central portion of the front (and back) portion of the support frame 10 has pocket-like joints 11e, 11e provided in the central portion of the front (and back) of the left and right struts 11a, 11a. , the connecting pieces 12b, 12b are inserted from above, and the lower ends of the brace plates 12c, 12c are fastened to the front (and rear) portions of the posts 11a, 11a near the leg 30 using thumb screws 12d. It is fixed by

As shown in FIGS. 1 to 3, the clamping means 20L and 20R include a pressing member 21 capable of coming into contact with the transport object T (see FIG. 6), and a plurality of supporting members supporting the pressing member 21 so as to be horizontally movable. A support shaft 22 , a male screw portion 22 a provided on the base end side of the support shaft 22 , and a handle 24 for rotating the support shaft 22 are provided. The horizontal portion 11h of the connecting member 11c forming part of the portal frame 11 constituting the side portion of the support frame 10 is provided with a female screw portion (not shown) that is screwed with the male screw portion 22a of the support shaft 22. A built-in bearing 25 is attached, and the male screw portion 22 a of the support shaft 22 is rotatably supported by the bearing 25 .

As shown in FIG. 4, the support shaft 22 constituting the clamping means 20R includes a male screw portion 22a, a plurality of auxiliary shafts 22b and 22c that can be sequentially connected to the distal end side of the male screw portion 22a, and the pressing member 21. and a connecting member 22d fixed to the rear surface of the . A convex portion 22m is provided on the tip side of the male screw portion 22a, a convex portion 22m and a concave portion 22f are provided on both ends of the auxiliary shafts 22b and 22c, respectively, and a concave portion 22f is provided on the connecting member 22d.

The male threaded portion 22a and the convex portions 22m of the auxiliary shafts 22b and 22c are cylindrical, the concave portions 22f of the auxiliary shafts 22b and 22c and the connecting member 22d are cylindrical, and the convex portions 22m of each member are formed on the other members. It can be detachably inserted into the recess 22f.

Accordingly, the projection 22m of the auxiliary shaft 22c is inserted into the recess 22f of the connecting member 22d, the projection 22m of the auxiliary shaft 22b is inserted into the recess 22f of the auxiliary shaft 22c, and the male screw portion 22a is inserted into the recess 22f of the auxiliary shaft 22b. By inserting the convex portion 22m, as shown in FIG. 2, the support shaft 22 integrated into a cylindrical shape can be formed. Although not shown, the clamping means 20L shown in FIG. 2 has the same structure and function as the clamping means 20R shown in FIG.

As shown in FIG. 2, when the plurality of handles 24 located on the left and right side surfaces of the support frame 10 are rotated forward and reverse, the male threaded portion 22a moves in the longitudinal direction with respect to the bearing 25, thereby moving the support shaft. Since the entire 22 moves in the longitudinal direction, the left and right pressing members 21L and 21R can be brought closer to each other or separated from each other.

In this embodiment, the support shaft 22 is formed by interposing two auxiliary shafts 22b and 22c having different lengths between the connecting member 22d and the male screw portion 22a. By changing the number of interposed auxiliary shafts and the length of each support shaft, the length of the entire support shaft 22 can be changed.

As shown in FIGS. 1 and 3 , wheels 40 are attached via brackets 41 to portions of the four struts 11 a forming the support frame 10 near the legs 30 . A slit 42 having a predetermined length is formed in the bracket 41 along the longitudinal direction of the column 11a. By screwing a thumbscrew 43 through the slit 42 toward the column 11a, the bracket 41 is attached to the leg of the column 11a. It is fixed to a portion near the portion 30 .

By loosening the thumb screw 43, the bracket 41 can be moved along the longitudinal direction of the column 11a, so that the height position of the wheel 40 relative to the leg 30 can be changed. Therefore, the contact surface (lowermost surface) of the wheel 40 can be set lower or higher than the lower surface 30a of the leg portion 30 .

As described with reference to FIG. 3, the upper end portions 11g, 11g of the two posts 11a, 11a are slidably inserted into the two connecting portions 11f, 11f hanging down from both ends of the horizontal portion 11h of the connecting member 11c. By screwing a plurality of thumb screws 11t to the upper end portion 11b side of the support a through the slits 11s of the connection portion 11f of the connection member 11c, the connection portion 11f of the connection member 11c and the upper end portion 11b of the support 11a are connected. side is fixed.

By loosening the plurality of thumb screws 11t, the connecting member 11c can move up and down relative to the support 11a in the longitudinal direction (vertical direction) of the support 11a within the length of the slit 11s. If a plurality of thumb screws 11t are tightened at an arbitrary position inside, the connecting member 11c is fixed to the post 11a at that position.

Therefore, as shown in FIG. 3, if the thumb screw 11t is positioned near the upper end of the slit 11s and tightened, the clamping means 20L (20R) is set at the lowest position, as shown in FIG. As shown, tightening the thumbscrew 11t in a state where the thumbscrew 11t is located near the lower end of the slit 11s sets the clamping means 20L (20R) to the highest portion. Therefore, as will be described later, the height of the clamping means 20L (20R) can be changed according to the height of the object to be transported T (see FIG. 6).

Here, based on FIGS. 1, 6, and 7, how to use and functions of the overturn prevention jig 100 will be described. As shown in FIG. 1 described above, when the wheel 40 of the overturn prevention jig 100 is brought into contact with the floor surface F in a state of protruding downward from the lower surface 30a of the leg portion 30, the lower surface 30a of the leg portion 30 is placed on the floor surface. F, the entire support frame 10 is held in a state of floating from the floor F.

The overturn prevention jig 100 in the state shown in FIG. After loosening a plurality of thumb screws 12d to separate the lower ends of the brace plates 12c from the struts 11a, the connecting plates 12a of the two connecting frames 12 are pulled upward to remove the connecting piece 12b from the joint portion 11e. The two connecting frames 12 are separated from the support 11a, and the front portion of the support frame 10 of the overturn prevention jig 100 is opened.

Next, the front portion of the support frame 10 in the open state is opposed to the rear portion of the object to be conveyed T, and the entire overturn prevention jig 100 is moved from the rear portion to the front portion of the object to be conveyed T. and the support frame 10, the object T to be transported is accommodated.

Next, as shown in FIG. 6, when the connecting frame 12 is attached to the front portion of the support frame 10 and the thumbscrew 12d is tightened, the front portion of the support frame 10 is closed and the support frame 10 is transported. It is arranged so as to surround the object T.

Next, as shown in FIG. 6, after adjusting the height of the clamping means 20L (20R) according to the height of the object to be conveyed T, the plurality of handles 24 on the left and right side surfaces of the support frame 10 are rotated. When the pair of pressing members 21L and 21R are moved toward the object to be conveyed T and come into contact with the left and right side portions of the object to be conveyed T, the support frame 10 is attached to the object T to be conveyed. be.

Next, by loosening the plurality of thumbscrews 43 near the legs 30 of the four struts 11a and moving the four brackets 41 upward, the ground surfaces of the four wheels 40 are moved from the lower surfaces 30a of the legs 30. After being moved to a slightly higher position, when the plurality of thumb screws 43 are tightened, the lower surface 30a of the leg portion 30 of the support frame 10 arranged to surround the object T to be conveyed is slightly above the floor surface F. kept floating.

As shown in FIG. 6, when the tipping prevention jig 100 is set on the object T, the object T is moved along the floor surface F by pulling or pushing the hand lifter H. be able to.

As shown in FIG. 7, when the object T to be conveyed tilts to the right during the conveying operation, the lower surface 30a of the leg portion 30 located on the right side touches the floor surface F, and the object T to be conveyed further inclines. is prevented, it is possible to prevent the object to be conveyed T from overturning. Similarly, when the object to be conveyed T tilts to the left during the conveying operation, the lower surface 30a of the leg portion 30 located on the left side contacts the floor surface F, thereby preventing the object to be conveyed T from overturning. can.

It should be noted that the overturn prevention jig 100 can be used in the same manner as described above when the object to be transported T is placed on another transportation aid, such as a roller (not shown) instead of the hand lifter H. It can provide excellent fall prevention function.

When the object to be transported T is transported to the destination, the four wheels 40 are moved to the floor by loosening the plurality of thumb screws 43 near the legs 30 of the four supports 11a and moving the four brackets 41 downward. After being grounded on the surface F, the support frame 10 arranged to surround the object to be conveyed T is held on the floor surface F by the four wheels 40 by tightening the plurality of thumb screws 43 .

Next, when the plurality of handles 24 on the left and right side surfaces of the support frame 10 are rotated to separate the pair of pressing members 21L and 21R from the left and right side surfaces of the object to be conveyed T, the support frame 10 moves toward the object to be conveyed. It becomes a state separated from the object T.

Next, when the two connecting frames 12 are removed by loosening the plurality of thumbscrews 12d on the front part of the struts 11a of the support frame 10, the front part of the support frame 10 is in an open state. When the frame 10 is moved toward the back side, the support frame 10 is separated from the object T to be conveyed.

After that, the two connecting frames 12 are attached to the front part of the support frame 10 in the open state, and the state shown in FIG. 1 is obtained. It can be easily moved to a place where the next object to be conveyed is located.

On the other hand, when the two connection frames 12 on the back of the support frame 10 in the closed state are also removed from the back of the pillars 11a in the above-described procedure, the support frame 10 is opened. are separated from each other. As a result, the support frame 10 can be disassembled into two portal frames 11 and four connecting frames 12, so that the disassembled state can be easily moved to a place where the next object to be conveyed is located or stored. be able to.

The overturn prevention jig 100 includes a support frame 10 that can be arranged so as to surround an object to be transported T on transport aids such as a hand lifter H and rollers placed on the floor F, A pair of clamping means 20L and 20R provided on the support frame 10 for attaching the frame 10 to the object T to be transported in a state in which the frame 10 is lifted from the floor surface F, and the object T to which the support frame 10 is attached. The support frame 10 is provided with four legs 30 for limiting the tilting range within a certain angle. It is possible.

Therefore, the overturn prevention jig 100 is relatively small, and can be attached to and removed from the object to be conveyed T easily and in a short time, exhibiting an excellent overturn prevention function.

In the overturn prevention jig 100, the positions of the clamping means 20L and 20R in the support frame 10 can be changed in the vertical direction, so objects to be conveyed with different heights can be handled easily and accurately.

Since the support frame 10 is provided with the wheels 40 in the overturn prevention jig 100 , the overturn prevention jig 100 can be easily moved along the floor surface F. Therefore, it is convenient to move the overturn prevention jig 100 to a place where the object to be conveyed is located or to withdraw the overturn prevention jig 100 after moving the object to be conveyed to the destination location.

In the overturn prevention jig 100, the position of the wheels 40 relative to the support frame 10 can be changed in the vertical direction. When the overturn prevention jig 100 is moved, the wheel 40 is moved downward so that the function as a caster can be exhibited.

In the overturn prevention jig 100, the support frame 10 can be disassembled into a plurality of constituent members (for example, two portal frames 11 and four connection frames 12). It is possible to reduce the occupied space when moving to a place or storing.

The overturn prevention jig 100 described with reference to FIGS. 1 to 7 is an example of the overturn prevention jig according to the present invention, and the overturn prevention jig according to the present invention is the above It is not limited to the overturn prevention jig 100 .

The anti-toppling jig according to the present invention can be widely used in various industrial fields as a safety measure when a thin self-supporting control panel or other articles are placed on a hand lifter or rollers and transported.

REFERENCE SIGNS LIST 10 support frame 11 portal frame 11a strut 11b reinforcing member 11c connecting member 11d box 11e joint portion 11f connecting portion 11g upper end portion 11h horizontal portion 11s, 42 slits 11t, 12d, 43 thumb screw 12 connecting frame 12a connecting plate 12b connecting piece 12c brace plate 12e bolt nut 20L, 20R clamping means 21L, 21R pressing member 22 support shaft 22a male threaded portion 22b, 22c auxiliary shaft 22d connecting member 24 handle 25 bearing 30 leg 30a lower surface 40 wheel 41 bracket 100 overturn prevention jig F: floor surface H: hand lifter T: object to be conveyed

Claims (5)

a support frame that can be arranged to surround an object to be transported on a transport aid such as a hand lifter or a roller placed on the floor;
at least a pair of clamping means provided on the support frame for attaching the support frame arranged to surround the object to be transported to the object to be transported in a state in which the frame is lifted from the floor surface;
a plurality of legs provided on the support frame for limiting the tilting range of the object to be conveyed to which the support frame is mounted within a predetermined angle;
A tipping prevention jig in which at least one of the front portion and the rear portion of the support frame can be opened and closed. 2. A jig for preventing overturning according to claim 1, wherein the position of said clamping means in said support frame can be changed in the vertical direction. 3. A jig for preventing overturning according to claim 1 or 2, wherein wheels are provided on said support frame. 4. A jig for preventing overturning according to claim 3, wherein the position of said wheel relative to said support frame can be changed in the vertical direction. The overturn prevention jig according to any one of claims 1 to 4, wherein the support frame can be disassembled into a plurality of constituent members.

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