JP2020116970A - Tumble prevention jig - Google Patents

Abstract

To provide a tumble prevention jig which is relatively small, can be easily and quickly attached to and detached from a conveyance object, and exerts an excellent tumble prevention function.SOLUTION: A tumble prevention jig 100 includes: a support frame 10 in a fence shape that can be placed so as to surround the circumference of a conveyance object T loaded on a hand lifter H installed on a floor surface F; a pair of holding means 20L and 20R provided on the support frame 10 so as to be attached to the conveyance object T with the support frame 10 placed so as to be surround the circumference of the conveyance object T lifted up from the floor surface F; and four legs 30 provided on a bottom surface of the support frame 10 so as to restrict the tilting range of the conveyance object T to which the support frame 10 is attached within a certain angle. A front part of the support frame 10 and a back part thereof can be opened and closed.SELECTED DRAWING: Figure 6

Description

The present invention relates to a fall-prevention jig for preventing a fall of an article during conveyance when the article is conveyed on a hand lifter or a roller.

When transporting a heavy article with a relatively high height, such as a thin self-supporting control panel, using a hand lifter or roller, in order to prevent the article from tilting and falling during the transportation operation, conventionally, Using multiple steel pipes and screw-type connecting metal fittings to form a fall-prevention structure around the hand lifter and the article placed on the roller, and a state where this structure is slightly floated from the floor A method is employed in which the structure is locked to the article and the structure and the article are conveyed in an integrated state.

The structure formed so as to surround the periphery of the article has a tilting range of the article at a predetermined angle by contacting a part of the bottom surface of the structure with the floor surface before the article starts to tilt and fall. Since it has a function of restricting the inside, when the article is tilted during the conveying work, further tilting is prevented, and as a result, the article can be prevented from falling.

On the other hand, as a conventional technique related to the present invention, there is, for example, “a device overturn prevention device” described in Patent Document 1. This "device overturn prevention device" is provided on the side surface of the main body supported by a plurality of main legs provided on the bottom surface, and is equipped with auxiliary leg portions that can take a posture of storing and deploying with respect to this main body. The auxiliary leg is rotatably connected to the main body with the upper end as a fulcrum, and is deployed from the side surface of the main body.

JP, 2005-227633, A

As described above, when carrying an article using a conventional structure for tipping prevention, at the start of carrying, a plurality of steel pipes and screw-type coupling fittings are combined to assemble the structure around the article, Since it is necessary to loosen the screw of the connecting fitting to disassemble and remove the structure after transporting to the destination, a great deal of labor and time are spent on the assembly work and disassembly work of the structure. Particularly, when there are a plurality of articles to be transported, the assembly work and the disassembly work of the structure have to be performed many times, so that the labor and time required for these works become enormous and a great burden. ..

In addition, since the conventional structure for preventing tipping needs to be formed so as to surround five surfaces other than the bottom surface of the object to be conveyed, when the object to be conveyed becomes large, the size of the object to be conveyed becomes remarkable, and the conveying path becomes large. If it is narrow, it may not be usable.

In addition, since many conventional screw-type connecting fittings are used in the conventional structure for fall prevention, not only the work itself of tightening and loosening the screws is complicated, but also forgetting to tighten the screws is induced. The possibility cannot be denied.

On the other hand, the "device overturn prevention device" described in Patent Document 1 is effective as a overturn prevention device for a specific device such as a copying machine, but is used for carrying relatively heavy articles such as a thin self-standing control panel. Is difficult to use.

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

The tipping prevention jig according to the present invention is a support frame body that can be arranged so as to surround the object to be conveyed on a conveyance auxiliary tool such as a hand lifter or a roller placed on the floor surface,
At least a pair of sandwiching means provided on the support frame for mounting the support frame in a state of being floated from the floor surface so as to surround the object to be conveyed,
A plurality of legs provided on the support frame to limit the tilting range of the object to be conveyed, on which the support frame is mounted, within a certain angle;
At least one of the front surface portion and the rear surface portion of the support frame can be opened and closed.

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

In the fall prevention jig, it is desirable to provide wheels on the support frame.

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

In the fall 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 a fall-prevention jig which is relatively small in size, can be easily attached to and detached from an object to be conveyed, and can exhibit an excellent fall-prevention function.

It is a front view which abbreviate|omits which shows the fall prevention jig which is embodiment of this invention. FIG. 2 is a partially omitted plan view of a fall prevention jig as viewed from the direction of arrow A in FIG. 1. FIG. 2 is a side view of the fall prevention jig as viewed from the direction of arrow B in FIG. FIG. 3 is a partially omitted exploded view of a portion indicated by an arrow C in FIG. 2. It is a side view which shows the state which raised the holding member in the fall prevention jig shown in FIG. FIG. 3 is a partially omitted front view showing a usage state of the overturn preventing jig shown in FIG. 1. FIG. 7 is a partially omitted front view showing a state in which an object to be conveyed is inclined while being conveyed using the tipping prevention jig shown in FIG. 6.

Hereinafter, a fall prevention jig 100 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 7.

As shown in FIGS. 1 to 4, a fall-prevention jig 100 according to the present embodiment includes a fence-shaped support frame 10 and a pair of expandable and contractible holding means provided on the left and right side surfaces of the support frame 10. 20L and 20R, four leg portions 30 provided on the bottom surface of the support frame 10, and wheels 40 provided on the outer side surfaces of the four leg portions 30 respectively.

As will be described later, since the front and back portions of the support frame 10 can be opened and closed, as shown in FIG. 6, the support frame 10 is transported by the hand lifter H placed on the floor F. It can be arranged so as to surround the target T.

As shown in FIGS. 1 and 3, the support frame 10 includes a pair of gate-shaped frames 11 and 11 located on the left and right side surfaces of the support frame 10, and the gate-shaped frames 11 and 11 at the front and rear portions of the support frame 10. And a plurality of sets of connecting frames 12 and 12 that releasably connect.

As shown in FIG. 3, the gate-shaped frame 11 includes a pair of support columns 11a and 11a vertically arranged at a predetermined distance in the front-rear direction of the support frame 10, and the center of the support columns 11a and 11a in the height direction. And a reinforcing member 11b horizontally joined horizontally, and a collapsed U-shaped connecting member 11c connecting the upper ends of the columns 11a and 11a. A box 11d having an open upper surface is attached near the center in the length direction of the reinforcing member 11b. The box 11d is a member for accommodating auxiliary shafts 22b, 22c, etc., which will be described later, but the use thereof is not limited and can be arbitrarily used.

The pillars 11a, 11a and the connecting member 11c are made of a square tubular steel material, and the upper ends of the two pillars 11a, 11a are provided in the two connecting portions 11f, 11f that hang down from both ends of the horizontal portion 11h of the connecting member 11c. The 11g and 11g sides are slidably inserted. The connecting portion 11f of the connecting member 11c is provided with a slit 11s having a predetermined length along the length direction of the connecting portion 11f, and the butterfly threaded through the slit 11s and screwed to the upper end 11g side of the column a. The connecting portion 11f of the connecting member 11c and the upper end portion 11g side of the column 11a are fixed by the screw 11t.

As shown in FIGS. 1 and 2, two sets of connecting frames 12 are arranged at positions vertically separated from each other on the front surface of the support frame 10. The connection frame 12 includes a connection plate 12a having an inverted U-shape, connection pieces 12b extending downward from both ends of the connection plate 12a, and bolt nuts 12e provided at portions near both ends of the connection plate 12a. And a brace 12c that is rotatably supported via a brace 12c.

The connection frame 12 located above the front surface (and the back surface) of the support frame body 10 is provided at a portion near the upper end of the front surface (and the rear surface) of the connecting portions 11f and 11f of the left and right connecting members 11c and 11c. The connecting pieces 12b, 12b are inserted into the pocket-shaped joints 11e, 11e from above, and the lower ends of the brace plates 12c, 12c are connected to the connecting portions 11f, 11f of the connecting members 11c, 11c by using the thumbscrew 12d. It is fixed by fastening to the front (and back).

The connecting frame 12 positioned at the center of the front surface (and the back surface) of the support frame 10 has pocket-shaped joints 11e and 11e provided at the center of the front surface (and the back surface) of the left and right columns 11a and 11a. , The connecting pieces 12b, 12b are respectively inserted from above, and the lower end portions of the brace plates 12c, 12c are fastened to the front portion (and rear surface) of the columns 11a, 11a near the leg portion 30 by using the thumbscrew 12d. It is fixed by that.

As shown in FIGS. 1 to 3, the sandwiching means 20L and 20R include a pressing member 21 that can abut the transfer target T (see FIG. 6), and a plurality of pressing members 21 that movably support the pressing member 21 in the horizontal direction. The support shaft 22 is provided with 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. A female screw portion (not shown) that is screwed with the male screw portion 22a of the support shaft 22 is provided on the horizontal portion 11h of the connecting member 11c that forms a part of the gate-shaped frame 11 that constitutes the side surface portion of the support frame 10. The 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 that constitutes the holding means 20R includes a male screw portion 22a, a plurality of auxiliary shafts 22b and 22c that can be sequentially coupled to the tip end side of the male screw portion 22a, and a pressing member 21. And a connecting member 22d fixed to the back 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 at both ends of the auxiliary shafts 22b and 22c, respectively, and a concave portion 22f is provided on the connecting member 22d.

The male screw portion 22a, the convex portion 22m of the auxiliary shafts 22b and 22c have a cylindrical shape, the auxiliary shafts 22b and 22c and the concave portion 22f of the connecting member 22d have a cylindrical shape, and the convex portion 22m of each member is different from the other members. It can be detachably inserted into the recess 22f.

Therefore, the convex portion 22m of the auxiliary shaft 22c is inserted into the concave portion 22f of the connecting member 22d, the convex portion 22m of the auxiliary shaft 22b is inserted into the concave portion 22f of the auxiliary shaft 22c, and the male screw portion 22a is inserted into the concave portion 22f of the auxiliary shaft 22b. By inserting the convex portion 22m, as shown in FIG. 2, it is possible to form the support shaft 22 which is integrally formed into a cylindrical shape. Although not shown, the sandwiching means 20L shown in FIG. 2 also has the same structure and function as the sandwiching 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 in the normal direction and the reverse direction, the male screw portion 22a moves in the longitudinal direction with respect to the bearing 25, whereby the support shaft. Since the entire 22 moves in the longitudinal direction, the left and right pressing members 21L and 21R can be moved closer to each other or separated from each other.

In the present embodiment, the support shaft 22 is formed by interposing the two auxiliary shafts 22b and 22c having different lengths between the connecting member 22d and the male screw portion 22a, but it is not limited to this. By changing the number of intervening auxiliary shafts or the length of each support shaft, the entire length of the support shaft 22 can be changed.

As shown in FIGS. 1 and 3, wheels 40 are attached via brackets 41 to the portions of the four columns 11 a that form the support frame 10 near the legs 30. The bracket 41 is provided with a slit 42 having a predetermined length along the longitudinal direction of the column 11a, and the thumb screw 43 is threaded through the slit 42 toward the column 11a so that the bracket 41 is fixed to the leg of the column 11a. It is fixed to a portion near the portion 30.

By loosening the thumbscrew 43, the bracket 41 can move along the longitudinal direction of the column 11a, so that the height position of the wheel 40 with respect to the leg 30 can be changed. Therefore, the ground 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 ends 11g and 11g of the two columns 11a and 11a are slidably inserted into the two connecting portions 11f and 11f that hang down from both ends of the horizontal portion 11h of the connecting member 11c. By passing through the slits 11s of the connecting portion 11f of the connecting member 11c and screwing a plurality of thumbscrews 11t on the upper end portion 11b side of the supporting column a, the connecting portion 11f of the connecting member 11c and the upper end portion 11b of the supporting column 11a are screwed. The sides and are fixed.

If the plurality of thumbscrews 11t are loosened, the connecting member 11c can move up and down in the longitudinal direction (vertical direction) of the column 11a within the range of the length of the slit 11s, and the range of the length of the slit 11s. If a plurality of thumbscrews 11t are tightened at any position inside, the connecting member 11c is fixed to the column 11a at that position.

Therefore, as shown in FIG. 3, if the thumbscrew 11t is tightened while the thumbscrew 11t is positioned near the upper end of the slit 11s, the holding means 20L (20R) is set to the lowest position, and as shown in FIG. As shown, if the thumbscrew 11t is tightened with the thumbscrew 11t positioned near the lower end of the slit 11s, the holding means 20L (20R) is set to the highest portion. Therefore, as will be described later, the height of the holding means 20L (20R) can be changed according to the height of the transfer target T (see FIG. 6).

Here, the usage and function of the fall prevention jig 100 will be described with reference to FIGS. 1, 6 and 7. As shown in FIG. 1 described above, when the wheels 40 of the fall prevention jig 100 are grounded to the floor surface F while protruding downward from the lower surface 30a of the leg portion 30, the lower surface 30a of the leg portion 30 is The support frame 10 as a whole is held in a state of being floated from the floor surface F apart from F.

The overturning prevention jig 100 in the state shown in FIG. 1 is carried to the back side (or front side) of the object T to be carried placed on the hand lifter H, and is brought to the front part (or back part) of the support frame 10. After loosening a plurality of thumbscrews 12d to separate the lower end of the brace plate 12c from the column 11a, pulling up the connecting plates 12a of the two connecting frames 12 to pull out the connecting piece 12b from the joint 11e, The two connecting frames 12 are separated from the column 11a, and the front portion of the support frame body 10 of the fall prevention jig 100 is in an open state.

Next, the front part of the support frame 10 in the open state is made to face the rear part of the transfer target T, and the entire tipping prevention jig 100 is moved from the rear part of the transfer target T toward the front part. The transfer target T is accommodated in the area surrounded by the support frame 10.

Next, as shown in FIG. 6, when the connecting frame 12 is attached to the front surface of the supporting frame body 10 and the thumbscrew 12d is tightened, the front surface portion of the supporting frame body 10 is closed, and the supporting frame body 10 is to be conveyed. The object T is arranged so as to surround it.

Next, as shown in FIG. 6, after adjusting the height of the holding means 20L (20R) according to the height of the object T to be conveyed, 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 operated to approach the object T to be conveyed and brought into contact with the left and right side surfaces of the object T to be conveyed, the support frame 10 is attached to the object T to be conveyed. It

Next, by loosening a plurality of thumbscrews 43 near the legs 30 of the four columns 11a and moving the four brackets 41 upward, the ground contact surfaces of the four wheels 40 can be removed from the lower surface 30a of the legs 30. When the plurality of thumbscrews 43 are tightened after being moved to a position slightly above, the lower surface 30a of the leg portion 30 of the support frame 10 arranged so as to surround the periphery of the object T to be conveyed slightly moves from the floor surface F. It is kept floating.

As shown in FIG. 6, when the falling prevention jig 100 is set on the transfer target T, the transfer target 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 transfer target T is tilted to the right during the transfer operation, the lower surface 30a of the leg portion 30 located on the right side is grounded on the floor surface F, and the transfer target T is further tilted. Therefore, the conveyance target T can be prevented from falling. Similarly, when the transfer target T is tilted to the left during the transfer work, the transfer target T can be prevented from falling by grounding the lower surface 30a of the leg portion 30 located on the left side to the floor surface F. it can.

Note that the fall prevention jig 100 is used in the same manner as described above even when the transport target T is placed on another transport auxiliary tool, for example, a roller (not shown) and moved, instead of the hand lifter H. It has an excellent fall prevention function.

When the object T to be transported is transported to the destination, the plurality of thumbscrews 43 near the legs 30 of the four columns 11a are loosened, and the four brackets 41 are moved downward to move the four wheels 40 to the floor. When the plurality of thumbscrews 43 are tightened after the surface F is grounded, the support frame 10 arranged so as to surround the periphery of the object T to be transported is held on the floor F by the four wheels 40.

Next, when the plurality of handles 24 on the left and right side surfaces of the support frame 10 are rotationally operated to separate the pair of pressing members 21L and 21R from the left and right side surfaces of the transfer target T, the support frame 10 is transferred. The product T is separated from the product T.

Next, when the plurality of thumbscrews 12d on the front surface of the support 11a of the support frame 10 are loosened and the two connecting frames 12 are removed, the front surface of the support frame 10 is in an open state. When the frame body 10 is moved to the rear surface side, the support frame body 10 separates from the transport target T.

After that, if the two connecting frames 12 are attached to the front portion of the support frame body 10 in the open state and the state shown in FIG. 1 is obtained, the fall prevention jig 100 uses the four wheels 40, It is possible to easily move to the place where the next object to be conveyed exists.

On the other hand, in the support frame 10 whose front part is in the open state, if the two connecting frames 12 on the back part of the support frame 10 in the closed state are also removed from the back part of the column 11a by the above-mentioned procedure, the support frame 10 The left and right gate-shaped frames 11 and 11 which have been configured are separated. As a result, the support frame body 10 is disassembled into the two gate-shaped frames 11 and the four connection frames 12, so that in the disassembled state, the support frame body 10 can be easily moved to a place where the next object to be conveyed or stored. be able to.

The fall prevention jig 100 includes a support frame body 10 that can be arranged so as to surround a conveyance target T that is placed on a conveyance assisting tool such as a hand lifter H or a roller placed on a floor surface F, and a support frame 10. The pair of holding means 20L and 20R provided on the support frame body 10 for mounting the frame body 10 on the transport target object T in a state of being floated from the floor F, and the transport target object T on which the support frame body 10 is mounted 4 legs 30 provided on the support frame 10 for limiting the tilting range within a fixed angle, and the front and back portions of the support frame 10 are opened and closed by attaching and detaching the connecting frame 12. It is possible.

Therefore, the fall prevention jig 100 is relatively small, and can be easily attached to and detached from the transfer target T in a short time, and exhibits an excellent fall prevention function.

In the overturn preventing jig 100, the positions of the sandwiching means 20L and 20R in the support frame 10 can be changed in the vertical direction, so that it is possible to easily and accurately deal with the objects to be conveyed having different heights.

In the fall prevention jig 100, since the support frame 10 is provided with the wheels 40, the fall prevention jig 100 can be easily moved along the floor surface F. Therefore, it is convenient when the fall prevention jig 100 is moved to a place where the object to be conveyed is located, or when the fall prevention jig 100 is removed after moving the object to be conveyed to the destination.

In the fall prevention jig 100, since the position of the wheel 40 with respect to the support frame 10 can be changed in the vertical direction, the function of the leg portion 30 can be obtained by moving the wheel 40 upward during the work of carrying the object to be carried. When the fall prevention jig 100 is moved, the wheels 40 are moved downward so that the caster function can be exerted.

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

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

INDUSTRIAL APPLICABILITY The fall prevention 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 carried on a hand lifter or a roller.

10 Support frame 11 Gate type frame 11a Strut 11b Reinforcing member 11c Connecting member 11d Box 11e Joint part 11f Connecting part 11g Upper end part 11h Horizontal part 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 screw part 22b, 22c Auxiliary shaft 22d Connecting member 24 Handle 25 Bearing 30 Leg part 30a Lower surface 40 Wheel 41 Bracket 100 Fall prevention jig F Floor surface H Hand lifter T Object to be transported

Claims (5)

A support frame body that can be arranged so as to surround the object to be transported on a transportation aid such as a hand lifter or roller placed on the floor,
At least a pair of sandwiching means provided on the support frame for mounting the support frame in a state of being floated from the floor surface so as to surround the object to be conveyed,
A plurality of legs provided on the support frame to limit the tilting range of the object to be conveyed, on which the support frame is mounted, within a certain angle;
A tipping prevention jig capable of opening and closing at least one of the front surface portion and the rear surface portion of the support frame. The fall-prevention jig according to claim 1, wherein the position of the holding means in the support frame can be changed in the vertical direction. The overturn preventing jig according to claim 1 or 2, wherein the support frame is provided with wheels. The fall prevention jig according to claim 3, wherein the position of the wheel with respect to the support frame is changeable in the vertical direction. The fall 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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