JP6061751B2 - Seat hanging assist device - Google Patents

Description

  The present invention relates to a sheet hanger assist device, and more particularly, to an apparatus for assisting a work for hung a sheet on an article in order to protect the article being stored or transported from dust, wind and rain, dew, and sunlight.

  In order to prevent the goods from being exposed to dust, wind, rain, dew, and sunlight when storing and transporting goods such as machinery, materials, equipment, or the packed wooden boxes in which they are stored in logistics and warehouse operations, Multiplying is done. In addition, it is unavoidable to temporarily store equipment in the field at construction sites. As the sheet, for example, a polyethylene sheet generally called a blue sheet or a waterproof cloth waterproof sheet is used.

  When carrying a sheet on an article placed on the ground or an article loaded on a transport vehicle, if the article is large, an operator may carry the sheet up on the article. However, in the case of an article that is easily damaged or an article that is easily tripped by the worker, the worker is not allowed to climb on the article. In addition, even if an operator is allowed to go up and hang a sheet on the article, in general, high-altitude work over 2 m above the ground is subject to safety work regulations. It is necessary to take safety measures such as falling prevention measures. However, in many seating work sites, working time including preparation work increases, and it is difficult to take safety measures from the viewpoint of lowering work efficiency.

  In view of this, there has been proposed a sheet-hanging device and a sheet-hanging method that allow a worker to hang a sheet without climbing on an article (for example, Patent Documents 1 and 2). Patent Document 1 discloses a seat hanging device that includes an arm portion at a front end portion of a leg portion that is provided so as to be able to rotate in the front-rear direction and extend in a front-rear direction on a front-rear portion of a carriage that runs along a side surface of an article. Is provided with a rotating arm that projects in the horizontal direction. According to this, after the seat hanging device is positioned behind the side surface of the article, and the leg portion of the front and rear rotary arm is tilted backward, one side of the seat is attached to the arm portion of the front rotary arm, The trolley is advanced with the leg portion of the rotating arm rotating forward and the leg portion extended to a position where the arm portion doesdges the height of the article. Thereby, the sheet is pulled in a state where the sheet is stretched around the front and rear arm portions, and the sheet can be stretched from one end of the article to the other end. When the carriage reaches the opposite end of the article, the leg portion of the rotating arm is further rotated forward to bring the arm portion to a position where the operator on the ground can remove the seat. Thereby, the worker can put a sheet on an article having a high height or an article loaded on the transport vehicle only by the work on the ground.

  On the other hand, the sheet hanging method described in Patent Document 2 is characterized in that the sheet is folded in advance so that the sheet can be easily unfolded when the sheet is hung. In other words, the sheet is folded in half and facing each other in the width direction to form a band, and the sheet folded in a band is rolled up with an auxiliary rope, and mounted on the roof of the cab of the transport vehicle, etc. deep. When the sheet is hung, the roll-shaped sheet is moved onto one end of the article, and the auxiliary rope is pulled from the other end side of the article to develop the roll-shaped sheet. And the sheet | seat folded in the width direction is opened with the edge of a sheet | seat, and it is made to hang over the whole article | item. According to this, except for going up to the roof of the cabin of the transport vehicle, the sheet can be hung by work from the ground without working at high places.

JP-A-6-255728 JP 2002-127810 A

  According to the sheet hanging apparatus described in Patent Document 1, since the sheet is pulled up by the two front and rear rotating arms and passed over the article, the sheet can be hung relatively smoothly. However, when the length of the article is long, the rear end side of the sheet pulled by the rotating arm may be caught at the upper end corner of the article, and measures such as a catch prevention tool are required. On the other hand, according to the sheet-hanging method described in Patent Document 2, there is a demand for a safer sheet-hanging device because it involves a high-level work of lifting a sheet folded into a roll and rolled up onto an article.

  Further, as in Patent Document 2, the sheet folded in a belt shape and rolled into a roll is attached to the arm portion of the rotating arm in front of Patent Document 1 and lifted on the article, and the carriage is advanced to roll into a roll. It is conceivable that after the belt-like sheet is stretched in the front-rear direction of the article, the belt-like sheet is spread in the width direction of the article and is stretched over the entire article.

  However, the work of winding a sheet folded in a belt shape around the arm portion of the rotary arm is heavy labor. In addition, the work of spreading the folded sheet in the width direction of the article is that the operator grasps and widens the end of the sheet hanging from the front end and the rear end of the article. become. In addition, when the sheet is caught and the folded part is difficult to spread, it is necessary to lift the sheet on the article by some means and remove the catch of the sheet or the like, so that damage to the article or trouble in safety work remains.

  The problem to be solved by the present invention is to provide a seating assisting device that allows a worker on the ground to safely and safely perform a sheeting operation of an article.

  In order to solve the above-mentioned problems, a seat-hanging assisting device according to the present invention is provided with a cart that can be driven by power, a column that is erected on the cart and can be expanded and contracted by a telescopic drive device, and a tip of the column. Rod support device, and a seat hanging rod supported by the rod support device, the rod support device being capable of raising and lowering the seat hanging rod in a vertical direction and a horizontal direction perpendicular to the traveling direction of the carriage. A base is rotatably supported, and the seat hanging rod is formed to be able to expand and contract by fitting a plurality of pipes whose diameters are sequentially reduced into the pipe forming the base, and an outer periphery of the pipe fitted into the pipe of the base And a sheet take-up pipe that is rotatably mounted on the sheet.

  A procedure of the sheet hanging work by the sheet hanging auxiliary device configured as described above will be described. First, the height of the column is shortened, the seat hanging rod is set up vertically, the carriage is moved to the seat hanging start position of the article to be seated, the carriage can travel along the article to the end position of the seat hanging, and The position and orientation of the carriage are adjusted so that the seat hook rod can be tilted to the side face of the article seat start position. Then, the rod support device is driven to horizontally tilt the sheet hanging rod and wind the sheet around the sheet winding pipe. Next, with the operator holding the end of the wound roll-shaped sheet, the column is extended to a position where the roll-shaped sheet doesdges the upper surface of the article. Thereby, a roll-shaped sheet | seat can be lifted to the upper surface position of articles | goods, without performing the high place operation | work which an operator climbs to the upper surface of articles | goods. Then, when the carriage travels along the article to the end position of the sheet, the roll-like sheet is rewound and the belt-like sheet can be extended over the entire length of the article.

  That is, when one end of the sheet is pulled and the sheet is hung, the rear end side of the sheet may be caught at the corner of the upper end of the article, so measures such as prevention of catching are necessary. Since the wound sheet is rewound and extended, such catching can be avoided. In addition, the sheet folded in a belt shape is hung on the entire article by grasping both ends of the sheet hanging from the article at the start position and the end position of the article and spreading it in the width direction of the article. Can pass. As described above, by using the seating assisting device of the present invention, an operator on the ground can perform the sheeting operation of the article safely and without any trouble.

  Further, if the article is long in the sheet-hanging direction, it may be difficult to spread the folding of the sheet in the center in the longitudinal direction of the article. In this case, a sheet hanging rod is inserted between the sheet at the sheet hanging start position or the hanging end position that has already been hung and suspended, and the article is extended as necessary. The carriage is moved to a place where it is difficult to spread the folding of the seat in a state where the seat folded in a band shape by the rod is lifted. As a result, the catch between the article and the sheet or between the sheets is released, and an operator on the ground can easily perform an operation of grasping both ends of the sheet and spreading in the width direction of the article.

  In particular, according to the present invention, since the sheet take-up pipe is rotatably mounted on the outer periphery of the pipe close to the base end of the sheet hanging rod, one end of the belt-like sheet folded on the ground is tied to the sheet take-up pipe. By rotating the sheet take-up pipe, the belt-like sheet can be easily wound into a roll. Note that the rotation of the sheet take-up pipe may use either human power or power such as a motor.

  In the present invention, the sheet hanging rod includes an arm member rotatably mounted around a pipe at a tip portion, and an auxiliary member including a pair of rollers that are pivotally supported at symmetrical positions with respect to the rotation center of the arm member. A roller is preferably provided. For example, when the width of the article to be seated is large, the tip of the sheet hanging rod that is cantilevered by the rod support device may hang down and get caught on the article. In this regard, if the auxiliary roller of the present invention is provided, the tip of the sheet hanging rod can be deposited on the upper surface of the article via the auxiliary roller, so that the possibility of the tip of the sheet hanging rod hanging down and caught on the article is avoided. be able to. Further, since the auxiliary roller is rotatably supported by the tip end portion of the sheet hanging rod via the arm member, the auxiliary roller can follow the undulation of the upper surface of the article and can rotate to support the tip end portion of the sheet hanging rod. .

  ADVANTAGE OF THE INVENTION According to this invention, the sheet | seat mounting operation | work of articles | goods can be performed safely and without trouble by the worker on the ground.

BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram of the sheet | seat hooking assistance apparatus of one Example of this invention, (a) is a front view, (b) is a side view, (c) is a top view. It is a figure which shows the seat hanging rod which concerns on the characteristic part of the Example of FIG. FIG. 3 is a detailed view of a main part of the seat hanging rod of FIG. 2. FIG. 3 is a detailed view of the brake of FIG. 2. FIG. 3 is a detailed view of the clamp of FIG. 2. It is a detailed block diagram of the auxiliary roller provided in the front-end | tip part of a sheet hooking rod. It is a figure which shows the example of folding of a sheet | seat. It is a figure explaining the basic operation | movement which seats an article | item using the seating auxiliary | assistance apparatus of one Example. It is a figure explaining the application operation | movement which seats an article | item using the sheet | seat hooking auxiliary device of one Example.

  With reference to FIGS. 1-6, the structure of the sheet | seat hooking assistance apparatus of one Example of this invention is demonstrated. The seating auxiliary device 1 of the present embodiment includes a cart 2 that can be driven by power, a support column 3 that can stand up and down on the cart 2, a rod support device 4 that is provided at the tip of the support column 3, The seat support rod 5 supported by the rod support device 4 is provided. The carriage 2 includes a motor (not shown) that drives the four wheels 6, and is configured to be able to travel forward and backward and to be steerable by a remote controller operated by an operator. Moreover, it is preferable that the cart 2 has a width (for example, within 80 cm) in which a gap between articles can travel. The column 3 is formed to be extendable by fitting a plurality of rectangular tubes formed in a rectangular cross section and having one side of the rectangular tube sequentially enlarged. The column 3 is provided with an expansion / contraction driving device 7 that expands and contracts its height. The rod support device 4 is fixedly provided on the tube wall 8 a of the square tube 8 at the tip of the column 3.

  As shown in FIGS. 2 and 3, the sheet hooking rod 5 is formed in a rod shape by a pipe material. That is, a base rod 5a that is rotatably supported by the rod support device 4, a first rod 5b that has a diameter that can be inserted into the pipe of the base rod 5a, and a diameter that can be inserted into the first rod 5b. The second rod 5c made of this pipe is fitted and is formed to be extendable. Note that the sheet hooking rod 5 is not limited to the present embodiment, and can be formed to be extendable by fitting three or more rods sequentially if necessary.

  A brake 10 and a clamp 11 are provided in the insertion connecting portion between the proximal rod 5a and the first rod 5b and the insertion connecting portion between the first rod 5b and the second rod 5c, respectively. In the present embodiment, a resin sheet winding pipe 12 mounted on the outer periphery of the first rod 5b is rotatably mounted. As shown in FIG. 4, the brake 10 has one end of a pair of clamps 10c and 10d each having a pair of half-brake brake shoe sheets 10a and 10b attached to the inner surface so as to be openable and closable around the pin 10e. The ends are connected with a thumbscrew 10f. The pin 10e is fixed to the proximal end pipe 5a through a flange 10g. The sheet take-up pipe 12 can be fixed to the base end pipe 5a by tightening the thumbscrew 10f. In addition, the insertion connection part of the base end pipe 5a and the 1st rod 5b adjusts the internal diameter of the front-end | tip part of the base end pipe 5a and the outer diameter of the connection part of the 1st rod 5b, for example, and is fixed by friction at the time of expansion | extension. It is like that. The insertion connecting portion side of the first rod 5 b and the second rod 5 c of the sheet take-up pipe 12 is rotatably mounted around the metal collar 14 mounted on the first rod 5 b in front of the clamp 11. As shown in FIG. 5, the clamp 11 sandwiches the first rod 5b between a pair of semi-annular clamp pieces 11a and 11b, and is turned by hand-screws 11c and 11d provided across the pair of clamp pieces 11a and 11b. The insertion connecting portion between the first rod 5b and the second rod 5c is tightened. As a result, after the winding pipe 12 is put on the first rod 5b, the clamp 11 is fixed to the end of the first rod 5b to prevent the winding pipe 12 from moving to the second rod 5c side and coming out. Yes.

  Further, an auxiliary roller 13 is provided on the second rod 5c at the tip of the sheet hanging rod 5 so as to be rotatable around the axis of the second rod 5c. As shown in FIG. 6, the auxiliary roller 13 includes an arm member 13b supported at the tip of the second rod 5c via a bearing 13a, and an arbitrary rotation angle of 180 degrees or less with respect to the rotation center of the arm member 13b. And a pair of rollers 13c and 13d that are pivotally supported at positions shifted by an angle of.

  A rotating shaft portion 16 is formed in the center portion of the base rod 5a in the longitudinal direction, and the pipes 15a and 15b are fixed to the base rod 5a in a cross shape. One end of the pipe 15a is pivotally supported by a bearing 17 provided on the wall surface of the cylindrical wall 8a, and the other end is pivotally supported by a bearing provided on the rod rotating device 18. Thereby, the base rod 5a is rotatably supported in a plane parallel to the wall surface of the cylindrical wall 8a of the support column 3. The rod rotating device 18 is formed having a handle 19 meshed with a gear mechanism connected to a pipe 15 b of the rotating shaft portion 16. By rotating the handle 19, the base rod 5a is formed so as to be able to undulate between a vertical position (shown in dotted line position A) perpendicular to the traveling direction of the carriage 2 and a horizontal position (shown in solid line position B). Correspondingly, the rod support device 4 is formed with a vertical locking device 20 that locks the rotation of the base rod 5a in the vertical position and horizontal locking devices 21a and 21b that lock in the horizontal position.

  An example of the procedure of the sheet hooking operation performed using the sheet hooking auxiliary device 1 of the embodiment configured as described above will be described with reference to FIGS. In the illustrated example, an article 30 packed in a cuboid wooden frame will be described as an example. However, the present invention is not limited to this, and in storage and transportation of machinery, materials, equipment, or articles such as packing wooden boxes in which they are stored in logistics and warehouse operations, the articles are dust, wind, rain, dew, It will be apparent from the following description that it can be used throughout the process of placing a sheet on an article to prevent exposure to sunlight.

  First, with the height of the column 3 lowered and the seat hanging rod 5 standing vertically, the carriage 2 is run to start seating of the article 30 to be seated (position 31 in the example of FIG. 8). Move to. In the seat hooking start position 31, the carriage 2 is adjusted to a position and direction in which the carriage 2 can travel along the side surface 30 b of the article 30 to the seat hooking end position (position 32 in the example of FIG. 8). Further, the position and orientation of the carriage are adjusted so that the sheet hanging rod 5 can be tilted parallel to the side surface 30 a of the sheet hanging start position 31 of the article 30.

  Next, the vertical lock device 20 of the rod support device 4 is released, the handle 19 is driven, the seat hook rod 5 is brought down to the horizontal position, and the rotation of the seat hook rod 5 is restrained by the horizontal lock devices 21a and 21b. In this state, one end of the sheet 40 folded in a band shape is tied to the sheet winding pipe 12 of the sheet hanging rod 5. Here, as shown in FIG. 7 (a) or (b), the sheet 40 is folded in a general manner, and the sheet 40 is once expanded, and in the width direction orthogonal to the sheet hooking direction. From both ends, it is folded half by half toward the center in the width direction so that the folded width is smaller than the length of the sheet take-up pipe 12. And although the sheet | seat 40 folded in strip | belt shape may be rounded to roll shape as shown to Fig.7 (a) or (b), it is not necessary to round. When the sheet 40 folded in a belt shape is rolled up and stored, the roll sheet 40 is inserted into the roll core from the tip of the sheet hanging rod 5 without rewinding the roll sheet 40. 40 is attached to the sheet take-up pipe 12. At this time, the sheet 40 is mounted so that the unwinding side of the sheet 40 is downward as shown in FIG. In addition, when the sheet 40 folded in a belt shape is not rolled up, after winding one end of the folded sheet 40 to the sheet take-up pipe 12, the sheet take-up pipe 12 is rotated manually. Wrap in a roll. In this case, it goes without saying that the sheet take-up pipe 12 can be rotated by a motor or the like.

  Next, the end of the wound roll-shaped sheet 40 is held by the operator 41 as shown in FIG. 8, and the support 3 is extended to a height at which the roll-shaped sheet 40 avoids the upper surface 30c of the article 30. To do. Thereby, the roll-shaped sheet 40 can be lifted to the upper surface 30c of the article 30 without performing the high-place work such that the worker 41 goes up to the upper surface 30c of the article 30. Then, when the carriage 2 travels along the article 30 in the direction of the illustrated arrow 42, the roll-shaped sheet 40 is rewound while rolling on the upper surface 30c of the article 30, and is developed on the upper surface 30c of the article 30. . In this way, when the carriage 2 travels to the seat hooking end position 32 and the seat hooking rod 5 reaches a position where it is disengaged from the upper surface 30c, the column 3 is shortened to lower the height of the seat hooking rod 5, and the initial position Return to. Thereby, the roll-shaped sheet 40 can be rewound and the strip-shaped sheet 40 can be extended over the entire length of the article 30.

  Next, in a state where the belt-like sheet 40 is developed over the entire length of the article 30, the belt-like sheet 40 is in a state where it hangs down on the side faces 30 a and 30 d of the article 30 at the sheet hanging start position and the sheet hanging end position. Therefore, the sheet 40 can be spread over the entire article 30 by grasping both ends of the belt-like sheet 40 by a plurality of workers 41 and spreading the sheet in the unfolding direction (width direction).

  By the way, when the article 30 is long in the sheet-hanging direction, or when the upper surface of the article 30 has irregularities or protrusions, it may be difficult to fold the sheet 40 at the center in the longitudinal direction of the article 30 from the ground. In this case, the sheet hanging rod 5 is inserted between the sheet 40 and the article 30 at the sheet hanging start position or the hanging end position that has already been hung and suspended. Then, as shown in FIG. 9, the column 3 is extended, the belt-like sheet 40 is lifted by the sheet hanging rod 5, and the carriage 2 is moved to a place where it is difficult to spread the folding of the sheet 40 in this state. As a result, the catch between the article 30 and the sheet 40 or between the sheets 40 is released, and the worker 41 on the ground can easily perform the work of grasping both ends of the sheet and spreading in the width direction of the article 30. That is, when adjusting the position or entanglement of the sheet 40, the sheet hanging rod 5 is inserted into the sheet from the lower end of the sheet 40 depending on the vertical surface of the article 30, and the sheet hanging rod 5 is moved over the upper surface of the article 30. The seat 40 is lifted up to the height, and in this state, the worker 41 on the ground can pull the seat 40 to remove the entanglement or catch, or correct the position.

  As described above, according to the present embodiment, as in Patent Document 1, when one end of a sheet in an unfolded state is pulled and the sheet is hung, the rear end side of the sheet may be caught at the corner of the upper end of the article. Although measures such as catching prevention are required, according to the present embodiment, the sheet 40 wound in a roll shape is rewound and extended, so that such catching can be avoided. In addition, the sheet 40 folded in a band shape is gripped by the both ends of the sheet 40 hanging from the article 30 and spread in the width direction of the article 30 at the start position 31 and the end position 32 where the worker 41 on the ground starts to hang. The sheet 40 can be passed over the entire article 30. As described above, by using the seating assisting device 1 of the present embodiment, an operator on the ground can perform the sheeting operation of the article safely and without any trouble.

  In particular, according to this embodiment, since the sheet take-up pipe 12 is rotatably mounted on the outer periphery of the first rod 5b connected to the base rod 5a of the sheet hanging rod 5, a belt-like sheet folded on the ground. By fixing one end of the sheet 40 to the sheet take-up pipe 12 and rotating the sheet take-up pipe 12, the belt-like sheet 40 can be easily wound into a roll. The sheet winding pipe 12 may be rotated by using human power or power such as a motor. Moreover, when the sheet | seat 40 rolled in roll shape is heavy, the fall of the trolley | bogie 2 can be prevented by winding to the part close | similar to the base rod 5a of the sheet | seat winding pipe 12. FIG. Furthermore, if the sheet take-up pipe 12 is easy to rotate, there may be a problem in the work of transferring the sheet 40. In this case, it is preferable to operate the brake 10 that suppresses the rotation of the sheet take-up pipe 12.

  In this embodiment, for example, when the width of the article 30 to be seated is large, the tip of the sheet hanging rod 5 that is cantilevered by the rod support device 4 hangs down, but the auxiliary roller 13 undulates the upper surface of the article 30. , The tip of the sheet hanging rod 5 can be supported, and the risk of the tip of the sheet hanging rod 5 being caught by the article 30 can be avoided. Further, since the auxiliary roller 13 includes a pair of rollers 13c and 13d, the sheet hanging rod 5 is lifted to reach the corner (the position indicated by the imaginary line 15 in FIG. 4) between the upper surface and the side surface of the article 30. In this case, for example, the preceding roller 13d can smoothly get over the corner portion, and the progress of the sheet hooking rod 5 is not hindered.

DESCRIPTION OF SYMBOLS 1 Seat hook auxiliary device 2 Carriage 3 Support | pillar 4 Rod support device 5 Seat hook rod 5a Base rod 5b 1st rod 5c 2nd rod 10 Brake 11 Clamp 12 Sheet take-up pipe 13 Auxiliary roller 16 Rotating shaft 17 Bearing 18 Rod rotating device 19 Handle

Claims (3)

A trolley that can be driven by power, a column that stands upright on the trolley and can be expanded and contracted by a telescopic drive device, a rod support device that is provided at the tip of the column, and a seat hook that is supported by the rod support device With a rod,
The rod support device rotatably supports the base end portion so that the seat hanging rod can be raised and lowered in a vertical direction and a horizontal direction perpendicular to the traveling direction of the carriage,
The seat-hanging rod is formed to be able to expand and contract by fitting a plurality of pipes whose diameters are sequentially reduced to the pipe forming the base, and is rotatably attached to the outer periphery of the pipe fitted to the pipe of the base A sheet hooking auxiliary device formed with a winding pipe.   The seat hook rod includes an auxiliary roller including an arm member rotatably mounted around a pipe at a tip end portion and a pair of rollers pivotally supported at symmetrical positions with respect to the rotation center of the arm member. The sheet-hanging auxiliary device according to claim 1, wherein The sheet hooking auxiliary device according to claim 1, wherein the sheet winding pipe is rotationally driven by a winding pipe driving device provided with an electric motor.

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