JP6247624B2 - Futon bag lifting device - Google Patents

Description

  The present invention relates to a lifting device for a futon bag, which is used for lifting a futon bag filled with stones and transferring it to a transporting place, a storage place, an installation place, or the like.

  Futon 篭 (rectangular gabion) used for various constructions such as revetment and road construction is formed in a square box shape with a rhombus wire netting, and is installed in the site filled with stones such as chestnuts and crushed stones. . In recent years, in order to speed up the construction, the work of filling the stone into the futon is performed at a place different from the installation site, and the stone-filled futon is transported to the site and installed. At that time, the futons that have been stoned at the stone filling site are lifted by a lifting device (lifter means), and are carried on a vehicle such as a truck and transported to an installation place as they are or once moved to a storage place. After that, it is put on the vehicle again and transported to the installation site.

  Conventionally, as the lifting device, those disclosed in Patent Document 1 and Patent Document 2 are known. This lifting device has a rectangular suspension frame and a plurality of suspension fittings attached to the suspension frame, and the suspension frame is connected to the futon in a state where the suspension fitting is locked with the wire. The futon is lifted by lifting with a heavy machine such as a power shovel through a rope. The futon that has been lifted and transported to the target location is lowered there, and the hanging bracket is removed from the futon.

  However, the conventional lifting device is used to lock the hanging bracket to the futon to lift the futon, or to remove the hanging bracket from the futon that has been transferred to a target location. The suspension frame that is suspended by a heavy machine is held at a height at which the hanging bracket can be locked and detached from the futon, and the hanging bracket is locked and detached at that position. Therefore, it is necessary to determine the height of the hanging frame by eye measurement and intuition. For this reason, if the eye is mismeasured, it is difficult to lock or disengage the hanging bracket, or the hanging bracket that is locked to the futon for lifting is detached from the futon when raising the hanging frame. On the contrary, there is a problem in that workability is somewhat difficult because there is a problem that the hanging metal member removed from the lowered futon is locked again to the futon when the hanging frame is raised.

JP 2002-97616 A JP 2007-315142 A

  The technical problem of the present invention is that the suspension frame to which the hanging bracket is attached and the above-mentioned futon basket are used both when the hanging bracket is locked to the lifting futon and when the hanging bracket is removed from the transferred futon. An object of the present invention is to provide a lifting apparatus for a futon bag having a simple and rational design structure that can maintain an optimal positional relationship for work.

In order to solve the above-mentioned problems, according to the present invention, there is provided a lifting device for lifting a stone-packed futon bag, which is a suspension frame formed by front and rear frame rods and left and right frame rods, and is engaged with the futon bag. A plurality of hanging brackets supported by the front and rear frame rods and the left and right frame rods so as to be movable up and down, and a contact portion projecting downward from the suspension frame. A positioning body that keeps the distance between the futon and the suspension frame constant when the abutment part comes into contact with the futon when the hook of the metal fitting is locked to the futon and when the hook is detached from the futon. The suspension fitting is biased upward by a spring force, and rises to a standby position when the hook is not locked to the futon, so that the hook is a contact portion of the positioning body. Configured to occupy a higher position It has lifting futon cage device, characterized in are provided.

In the present invention, the suspension fitting is attached to a distal end portion of a swing arm that is swingable in a vertical direction with a base end portion as a fulcrum , and the base end portion of the swing arm is attached to the frame rod with an arm support shaft The swinging arm is urged upward by a spring.
More specifically, one end and the other end of the arm support shaft are supported by one and the other of the pair of bearing members attached to the frame rod, and between the one bearing member and the swing arm. The spring surrounding the arm support shaft is disposed, one end of the spring is locked to the one bearing member, and the other end of the spring is locked to the swing arm.

In the present invention, it is desirable that at least a part of the plurality of suspension fittings can be adjusted in position along the frame rod.
In this case, the pair of bearing members are attached to the movable base, and the movable base is movably attached along the frame rod, so that the position of the hanging bracket can be adjusted along the frame rod.

In the present invention, preferably, at least one of the front and rear frame rods and the left and right frame rods can adjust the interval between the frame rods according to the size of the futon.
It is desirable that the contact portion of the positioning body extends horizontally and a plurality of contact portions are arranged in parallel.

According to another specific configuration aspect of the present invention, there are a plurality of pairs of left and right frame rods of the suspension frame, and the plurality of pairs of left and right frame rods have different intervals between the left frame rod and the right frame rod. ing.
In this case, the suspension bracket can be detachably attached to any one of the pair of left and right frame rods and selectively attached to the pair of left and right frame rods. It is desirable to be attached to.

  According to the present invention, the positioning body formed on the hanging frame is used when the hook of the hanging bracket is locked to the futon when the futon is lifted or when the hanging bracket is detached from the transferred futon. By abutting on the comforter, the distance between the comforter and the suspension frame can be reliably maintained in a fixed positional relationship optimum for work.

It is a top view which shows 1st Embodiment of the lifting apparatus which concerns on this invention. It is a front view of the lifting apparatus of FIG. It is a side view of the lifting apparatus of FIG. It is a principal part enlarged plan view of the lifting apparatus of FIG. 1, and shows a fixed type lifting metal fitting and a metal fitting support apparatus. FIG. 5 is a side view of FIG. 4. FIG. 5 is a diagram showing a state where the swing arm is rotated to an intermediate rotation position in FIG. 4. FIG. 7 is a side view of FIG. 6. It is a figure of the state which rotated the rocking | fluctuating arm in FIG. 4 to the suspension position which suspends a futon. FIG. 2 is an enlarged plan view of a main part of the side view of the lifting device shown in FIG. 1, showing a movable suspension bracket and a bracket support device in a state where a swing arm is rotated to an intermediate rotation position. FIG. 10 is a side view of FIG. 9. It is a front view which shows the state before lifting the futon. It is a front view which shows the state which made the hanging frame contact | abut on the upper surface of a futon. It is a front view which shows the state which turned the rocking | fluctuating arm to the intermediate | middle rotation position, and latched the hook of the hanging bracket to the futon. It is a front view which shows the state which raised the hanging frame and lifted the futon. It is a perspective view of a futon bag. It is a top view which shows 2nd Embodiment of the lifting apparatus which concerns on this invention.

  1 to 3 show a first embodiment of a lifting apparatus for futon bags according to the present invention. As shown in FIGS. 11 to 14, the lifting apparatus 1A has a stone material such as chestnut or crushed stone inside. A rhombic wire netting futon bowl 2 (rectangular gabion) filled in is suspended.

  As shown in FIG. 15, the futon 2 has a rectangular bottom mesh 3a, a rectangular front mesh 3b and a rear mesh 3c, a rectangular left mesh 3d and a right mesh 3e, and a rectangular top mesh 3f. It is formed in a rectangular box shape having a longer left and right length n, and a frame line 4 made of wire is attached to the outer periphery of each surface mesh 3a-3f. Are connected in a bundled state by a spiral connecting line 5 to assemble the futon 2. Since the structure of such a futon 2 is well-known, the further detailed description is abbreviate | omitted.

  As apparent from FIGS. 1 to 3, the lifting device 1 </ b> A includes a suspension frame 7 having a substantially rectangular shape in plan view, a plurality of suspension brackets 8 attached to the suspension frame 7, and the suspension bracket 8. And a plurality of positioning bodies 9 that come into contact with the upper surface of the futon 2 when the door is locked or detached from the futon 2.

The suspension frame 7 is arranged so as to be horizontal and parallel to each other, and the front frame rod 10a and the rear frame rod 10b, and the front frame rod 10a and the rear frame rod 10b are orthogonal to and parallel to each other. The horizontal left frame rod 11a and the right frame rod 11b, which are disposed in the frame, are integrally connected by appropriate joining means such as welding. At that time, the left frame rod 11a and the right frame rod 11b are arranged at positions slightly inward from the ends of the front frame rod 10a and the rear frame rod 10b. The front and rear lengths (short diameter) M and the left and right lengths (long diameter) N of the rectangle surrounded by the front frame collar 10a and the rear frame collar 10b, the left frame collar 11a and the right frame collar 11b are Although it is the same size as the longitudinal length (minor axis) m and the lateral length (major axis) n of the futon 2 to be lifted, it may be slightly larger or smaller.
The front frame rod 10a and the rear frame rod 10b, and the left frame rod 11a and the right frame rod 11b are each formed of channel steel, and are arranged in a posture in which each groove faces the inside of the suspension frame 7. It is installed.

A substantially triangular suspension board 13 is fixed to the four corners inside the suspension frame 7, and a bracket mounting member 14 is fixed to the upper surface of the suspension board 13. A U-shape is formed on the bracket mounting member 14. The hanging bracket 15 is attached by a pin 16 so that it can be tilted up and down. The hanging bracket 15 is used to hang a suspension line 17 (see FIG. 11) made of a wire rope, a chain, or the like, and the suspension frame 7 is lifted by a heavy machine such as a power shovel through the suspension line 17. It is done.
The suspension frame is formed so as to be symmetric with respect to the center in the major axis N direction in order to maintain a left-right balance in terms of shape and weight.

  The positioning body 9 is used to lock the hanging bracket 8 on the futon bag 2 when the stone-filled futon bag 2 is lifted, and after the lifted futon bag 2 is transferred to a target place, When the heel 2 is lowered and the hanging bracket 8 is removed, the upper surface of the hood 2 is kept in contact with the upper surface of the hood 2, and the distance between the hood 2 and the suspending frame 7 is maintained in a fixed positional relationship optimum for work. An upper spread comprising a horizontal bottom portion 19 that forms a contact portion 19a that contacts the upper surface of the futon 2 and a pair of side portions 20 that extend obliquely upward from both ends of the bottom portion 19 This is a concave member. The base 19 and the side 20 are made of angle steel.

  The two positioning bodies 9 are fixed to the suspension frame 7 by fixing the upper ends of the pair of side portions 20 to the front frame collar 10a and the rear frame collar 10b of the suspension frame 7. The suspension frame 7 is crossed in the minor axis M direction (front-rear direction) at a position that is symmetric with respect to the center of the major axis N direction (left-right direction) of the frame 7, and the base 19 is below the suspension frame 7. They are attached in parallel to each other in a protruding position.

The length L of the bottom portion 19 is shorter than the minor axis M of the suspension frame 7, and therefore, the bottom portion 19 abuts on the upper surface of the futon 2 within the inner region of the suspension frame 7. Become.
The height H at which the bottom portion 19 protrudes downward from the suspension frame 7 is such that the bottom surface of the bottom portion 19 is below the hook 8b of the suspension fitting 8 when the suspension fitting 8 is in a standby position described later. The height occupies a position.

  The suspension fitting 8 is formed by a chain-like fitting body 8a and a hook-like hook 8b attached to the tip (lower end) of the fitting body 8a. A plurality of front frame rods 10a and rear frame rods 10b, and a plurality of left frame rods 11a and right frame rods 11b, respectively, are attached via metal support devices 21A and 21B. The metal fitting body 8a may have a rod shape or a wire shape.

  The bracket support devices 21A and 21B are of a fixed type and a movable type. In the illustrated example, a fixed bracket support device 21A is attached to the front frame rod 10a and the rear frame rod 10b, and the left frame rod A movable bracket support device 21B is attached to 11a and the right frame rod 11b. Therefore, the fixed bracket support device 21A will be described first, and then the movable bracket support device 21B will be described.

  As is apparent from FIGS. 4 to 8, the fixed bracket support device 21A has a pair of left and right bearing members 23a fixed to the flat outer surface of the vertical wall portion 10c of the front frame rod 10a and the rear frame rod 10b. , 23b, a horizontal arm support shaft 24 having one end and the other end supported by one and the other of the pair of bearing members 23a, 23b, and a base end portion rotatably supported by the arm support shaft 24 Thus, the swing arm 25 swingable in the vertical direction is provided, and the upper end portion of the hanging bracket 8 is rotatably supported by the pin 26 at the tip of the swing arm 25. The arm support shaft 24 is formed by bolts 24a and nuts 24b.

  The swing arm 25 is disposed at a position deviated toward the first bearing member 23a side of the pair of bearing members 23a and 23b, and the second bearing member 23b and the swing arm 25 A coil-shaped spring 27 surrounding the arm support shaft 24 is disposed therebetween, and one end 27a of the spring 27 is fixedly locked to a spring stopper 28 provided on the second bearing member 23b. The other end 27 b of the spring 27 is fixedly locked to the swing arm 25. The spring 27 may be a hook-shaped spring or other springs instead of the coiled spring.

  As a result, the swing arm 25 is always elastically biased upward by the spring force of the spring 27 and rotates upward when the futon 2 is not lifted by the hanging bracket 8. As shown in FIG. 5, when the futon 2 is lifted by the hanging bracket 8 when it occupies a standby position where it abuts against the stopper 29 formed on the first bearing member 23a, it rotates downward against the spring force. As shown in FIG. 8, the swing arm 25 and the metal fitting body 8a are displaced to a suspension position that is continuous with a vertically extending state. When the swing arm 25 is displaced to the suspension position, the spring 27 is twisted, and elastic energy for returning the swing arm 25 to the standby position is accumulated.

Further, when the swing arm 25 is in the standby position, the suspension fitting 8 is also in the standby position raised to the maximum. At this time, the hook 8b is connected to the bottom portion 19 of the positioning body 9 as described above. Occupies a position above the lower surface of the.
6 and 7 show the state when the swing arm 25 is displaced to an intermediate rotation position between the standby position and the suspension position in order to reduce the degree of line overlap and make it easy to understand. Show.
In addition, it can be said that the said suspension metal fitting 8 supported by the said fixed metal fitting support apparatus 21A is a fixed suspension metal fitting.

  On the other hand, the movable bracket support device 21B moves along the left and right frame rods 11a and 11b as shown in FIGS. 9 and 10 with the swing arm 25 being displaced to the intermediate rotation position. There is a movable base 30 that is freely removable with respect to the frame rods 11a, 11b. The movable base 30 includes bearing members 23a, 23b, arm support shafts 24, and the like, similar to the fixed bracket support device 21A. A swing arm 25, a spring 27, a spring stopper 28, and a stopper 29 are provided and have substantially the same configuration as the fixed bracket support device 21A except that it is movable. .

  The movable base 30 includes a vertical base main body 30a that contacts the flat outer surface of the vertical wall 11c of the left and right frame rods 11a and 11b, and an upper end of the base main body 30a toward the inside of the suspension frame 7. The base upper piece 30b that extends horizontally and straddles the flange 11d above the frame rods 11a and 11b, and the end of the upper piece 30b on the inner surface side of the frame rods 11a and 11b. The screw mounting portion 30c extends downward, and the fixing bolt 31 is screwed into the screw hole of the screw mounting portion 30c.

Then, when the fixing bolt 31 is loosened, the movable base 30 becomes movable along the frame rods 11a and 11b, and the position of the hanging metal fitting 8 is matched to the mesh of the rhombus metal mesh that forms the futon rod 2. When the fixing bolt 31 is tightened at the adjusted position, the tip of the fixing bolt 31 comes into contact with the back surface of the vertical wall portion 11c of the frame rods 11a and 11b, so that the movable base 30 is fixed in that position.
Therefore, it can be said that the suspension bracket 8 supported by the movable bracket support device 21B is a movable suspension bracket.

  In the illustrated embodiment, six suspension brackets 8 are attached to the front frame collar 10a and the rear frame collar 10b, respectively, via fixed bracket support devices 21A at equal intervals, and the left frame collar 11a and the right frame collar 11b. Each of the two hanging brackets 8 is attached via a movable bracket support device 21B, but the number of the hanging brackets 8 can be appropriately increased or decreased according to the size of the futon 2.

When lifting the stone-filled futon 2 with the lifting device 1A having the above-described configuration, as shown in FIG. 11, the hanging metal strips 15 provided at the four corners of the hanging frame 7 are connected to the lower ends of the suspension line 17. A hook is hung, and the suspension frame 7 is lifted by a heavy machine such as a power shovel by the suspension line 17 and moved to a position directly above the futon 2. At this time, the swing arm 25 and the suspension fitting 8 occupy the standby position of FIG. 5 by being urged upward by the spring 27, so that the hook 8 b of the suspension fitting 8 is the positioning body 9. It is in the position above the bottom part 19 of.
Note that the hook 15 may be omitted and the hook at the lower end of the hanging wire 17 may be directly hooked into the locking hole of the bracket mounting member 14.

Next, when the suspension frame 7 is lowered, as shown in FIG. 12, the suspension frame 7 is lowered to a position where the bottom side 19 of the positioning body 9 abuts on the upper surface of the futon 2 and at that position. By stopping, it is positioned so as to maintain a certain distance from the futon 2. At this time, since the hook 8b of the hanging bracket 8 is located above the futon bag 2, the hook 8b is not yet locked to the futon bag 2.
Therefore, as shown in FIG. 13, the operator pulls down the suspension fitting 8 in the standby position to the intermediate position against the spring force, and locks the hook 8b at the lower end of the suspension fitting 8 to the futon 2 Let Once the hook 8b is locked to the futon bag 2, the suspension fitting 8 is urged upward by a spring force at the intermediate position, so that the hook-like body 2 is maintained as it is. You will never be surprised.

  In addition, the position where the hook 8b is locked to the futon basket 2 is the position where the bent portions 6a of the row line 6 forming the rhombus metal mesh are locked with each other, or the frame line 4 at the upper end of the futon basket 2. A position where the bent portion 6a of the row line 6 is locked is preferable.

After the hooks 8b of all the hanging fittings 8 are locked to the futons 2, as shown in FIG. 14, the hanging frames 7 are lifted by the hanging wire strips 17, so that the futons are passed through the hanging fittings 8. 2 is lifted and transported to the destination, such as a vehicle carrier or other storage location. At this time, the swing arm 25 is rotated to a suspension support position that is connected straight to the metal fitting body 8a, and the spring 27 is twisted accordingly, and the swing arm 25 is returned to the standby position. Elastic energy is accumulated.
Further, the suspension frame 7 rises with respect to the futon 2 by the amount that the hanging fitting 8 is lowered to the hanging support position, so that the bottom side 19 of the positioning body 9 is separated from the upper surface of the futon 2. .

The futon 2 transferred to the target location is released from the lifting device 1A through the reverse process of lifting.
That is, first, the futon 2 is lowered to the place by gradually lowering the suspension frame 7 in the state shown in FIG. Then, the futon 2 stops at that position by coming into contact with the loading platform or the ground of the vehicle, but after that, the suspension frame 7 is further lowered, and as shown in FIG. It stops at the position where the bottom 19 contacts the upper surface of the futon 2. At this time, the swing arm 25 is raised to the intermediate position by the spring force of the spring 27, and is elastically biased upward at that position, so that the hook 8b of the hanging bracket 8 is a futon. There is no departure from 2.

  Therefore, the operator slightly lowers the suspension fitting 8 against the spring force, and removes the hook 8b at the lower end from the futon 2. Then, as shown in FIG. 12, the swing arm 25 is raised to the standby position by the spring force, and accordingly, the hook 8b of the hanging bracket 8 is also positioned above the bottom side 19 of the positioning body 9, that is, Since it rises to a position above the upper surface of the futon bag 2, the hook 8b will not be locked to the futon bag 2 unexpectedly unless it is pulled down again and locked to the futon bag 2.

  After the hooks 8b of all the hanging metal fittings 8 are removed from the futons 2, as shown in FIG. 11, the suspension frame 7 is lifted by a heavy machine, returned to the stone stuffing site, and the same operation is repeated.

  In the illustrated embodiment, the fixed suspension bracket 8 is provided on the front frame rod 10a and the rear frame rod 10b, and the movable suspension bracket 8 is disposed on the left frame rod 11a and the right frame rod 11b. On the contrary, the movable frame 8 may be provided on the front frame 10a and the rear frame 10b, and the fixed frame 8 may be provided on the left frame 11a and the right frame 11b. Alternatively, as described above, the fixed type hanging brackets 8 and the movable type hanging brackets 8 are alternately arranged, both may be mixed, and all the hanging brackets 8 can be fixed or movable. .

  The front and rear frame rods 10a and 10b and the left and right frame rods 11a and 11b of the suspension frame 7 are configured such that at least the front and rear frame rods 10a and 10b or the left and right frame rods 11a and 11b can be expanded and contracted. In addition, at least one of the short diameter M and the long diameter N can be adjusted in accordance with the short diameter m and the long diameter n of the futon 2. Alternatively, instead of fixing the front and rear frame rods 10a, 10b and the left and right frame rods 11a, 11b to a fixed positional relationship by welding, the mutual positions can be adjusted slidably, and bolts and nuts can be adjusted at the adjusted positions. It is also possible to make at least one of the short diameter M or the long diameter N adjustable by using a fixing means such as the above.

  Furthermore, the bracket support devices 21A and 21B are arranged at a position where the swing arm 25 is deviated toward the first bearing member 23a, and between the swing arm 25 and the second bearing member 23b. Since the spring 27 is disposed, as shown in FIG. 1, the positional relationship of the suspension fittings 8 provided on the front frame rod 10a and the rear frame rod 10b, and the left frame rod 11a and the right frame rod 11b, Although the positional relationship of the provided hanging metal fittings 8 is opposite to each other, the metal fittings attached to either one of the front and rear frame rods 10a and 10b and one of the left and right frame rods 11a and 11b. In the support devices 21A and 21B, the swing arm 25 is disposed at a position deviated toward the second bearing member 23b, and the spring 27 is disposed between the swing arm 25 and the first bearing member 23a. The hanging bracket The can be placed horizontally on the same side.

  Alternatively, in the front and rear frame rods 10a and 10b and the left and right frame rods 11a and 11b, the hanging metal fitting 8 provided on one half side in the length direction and the hanging metal fitting 8 provided on the other half side Are arranged symmetrically with respect to each other so that the hanging bracket 8 is arranged symmetrically with respect to the center in the length direction of the front and rear frame rods 10a and 10b and the left and right frame rods 11a and 11b. You can also

  Further, the configuration of the bracket support devices 21A and 21B is not limited to that described above, and the suspension bracket 8 is made up of a vertically movable shaft and other brackets instead of the swing arm 25. The supporting member may be supported and the supporting member may be biased upward by an appropriate spring.

  FIG. 16 shows a second embodiment of the lifting device according to the present invention. The lifting device 1B of the second embodiment is different from the lifting device 1A of the first embodiment in that there are a plurality of left and right frame rods. It is a point provided. In the illustrated example, two pairs of left and right frame rods are provided, and one pair of them is an outer first left frame rod 11a1 and first right frame rod disposed near both ends of the front and rear frame rods 10a and 10b. 11b1 and the other pair is a second left frame rod 11a2 and a second right frame rod 11b2 disposed inside the first left frame rod 11a1 and the first right frame rod 11b1. Two positioning bodies 9 are disposed at a position between the second left frame rod 11a2 and the second right frame rod 11b2. Therefore, as a matter of course, the distance between the first left frame rod 11a1 and the first right frame rod 11b1 positioned on the outer side is the distance between the second left frame rod 11a2 and the second right frame rod 11b2 positioned on the inner side. Greater than the interval.

  Each of the first left frame rod 11a1 and the first right frame rod 11b1 is provided with a plurality of movable suspension brackets 8 supported by a movable bracket support device 21B. 30 is detached from the first left frame rod 11a1 and the first right frame rod 11b1 and attached to the second left frame rod 11a2 and the second right frame rod 11b2, thereby the second left frame rod 11a2 and the second right frame It can also be attached to the collar 11b2. Accordingly, the first left frame rod 11a1, the first right frame rod 11b1, the second left frame rod 11a2, and the second right frame rod 11b2 are formed of the same material and have the same configuration.

The lifting device 1B can deal with futon bags of different sizes. For example, when lifting the futon 2 having a minor axis m of 1200 mm and a major axis n of 2000 mm, as shown by a solid line in FIG. The movable suspension bracket 8 is used in a state of being attached to the first left frame rod 11a1 and the first right frame rod 11b1 on the outside, and the futon 2 having a minor axis m of 1200 mm and a major axis n of 1500 mm is lifted. In some cases, as shown by a chain line in FIG. 16, the movable hanging bracket 8 can be used in a state of being attached to the inner second left frame rod 11a2 and second right frame rod 11b2.
However, the movable hanging bracket 8 may be attached to both the first left frame rod 11a1 and the first right frame rod 11b1, and the second left frame rod 11a2 and the second right frame rod 11b2. good.

  Further, the second left frame rod 11a2 and the second right frame rod 11b2 may be fixed to the front frame rod 10a and the rear frame rod 10b in the same manner as the first left frame rod 11a1 and the first right frame rod 11b1. Although it may be good, it may be comprised so that position adjustment is possible along this front frame ridge 10a and back frame ridge 10b, and it can respond to the futon of various sizes by doing so. For example, the first left frame ridge 11a1 and the first right frame ridge 11b1 are fixed to a position matching the futon with the longest diameter n, and the second left frame ridge 11a2 and the second right frame ridge 11b2 are adjusted in position. By making it possible, by adjusting the positions of the second left frame rod 11a2 and the second right frame rod 11b2, it is possible to cope with other various futons having a major axis n.

  However, it is also possible to adjust both the positions of the first left frame collar 11a1 and the first right frame collar 11b1, the second left frame collar 11a2, and the second right frame collar 11b2, and the front frame collar 10a and the rear frame collar 10a. By connecting the frame collar 10b to the first left frame collar 11a1 and the first right frame collar 11b1, the second left frame collar 11a2 and the second right frame collar 11b2, the front frame collar can be adjusted. It is also possible to adjust the interval (minor axis M) between 10a and the rear frame rod 10b.

  The configuration and modification of the lifting device 1B according to the second embodiment other than those described above are substantially the same as those of the lifting device 1A according to the first embodiment. Are denoted by the same reference numerals as those used for the lifting device 1A of the first embodiment, and description thereof is omitted.

1A, 1B Lifting device 2 Futon bowl 7 Suspension frame 8 Suspension metal fitting 8b Hook 9 Positioning body 10a, 10b, 11a, 11b, 11a1, 11b1, 11a2, 11b2 Bearing member 23b Second bearing member 24 Arm support shaft 25 Swing arm 27 Spring 30 Movable base

Claims (9)

A lifting device for lifting stone-filled futons,
A hanging frame formed by front and rear frame rods and left and right frame rods;
A plurality of hanging brackets having hooks that are locked to the futon, and supported by the front and rear frame rods and the left and right frame rods so as to be vertically movable;
There is a contact portion protruding downward from the suspension frame, and the contact portion contacts the futon when the hook of the hanging bracket is locked to the futon and when the hook is detached from the futon. A positioning body that keeps the distance between the futon and the suspension frame constant ,
The suspension fitting is biased upward by a spring force, and when the hook is not locked to the futon, it rises to a standby position so that the hook is positioned above the contact portion of the positioning body. Configured to occupy,
Futon bag lifting device. The suspension fitting is attached to the distal end of a swing arm that can swing in the vertical direction with the base end as a fulcrum, and the base end of the swing arm is freely rotatable on the frame rod by an arm support shaft. supported, lifting said oscillating arm according to claim 1, characterized in that it is urged upward by a spring device. One end and the other end of the arm support shaft are supported by one and the other of the pair of bearing members attached to the frame rod, and the arm support is between the one bearing member and the swing arm. 3. The spring according to claim 2 , wherein the spring surrounding the shaft is disposed, one end of the spring is locked to the one bearing member, and the other end of the spring is locked to the swing arm. The lifting device described. Wherein at least some of the plurality of lifting lugs, lifting according to any one of claims 1 to 3, characterized in that the adjustably along the frame rod device. The pair of bearing members are attached to a movable base, and the movable base is movably attached along the frame rod, so that the position of the suspension fitting can be adjusted along the frame rod. The lifting device according to claim 4 , which is dependent on claim 3 . The lifting according to any one of claims 1 to 5 , wherein at least one of the front and rear frame rods and the left and right frame rods can adjust a distance between the frame rods according to the size of the futon. apparatus. Abutment of the positioning body extend horizontally, lifting device according to claim 1 in which a plurality of contact portions is characterized in that it is arranged in parallel state 6. There left and right Waku杆multiple pairs of the hanging frame, Waku杆right and left of the plurality number pairs in any of claims 1 to 7, characterized in that the distance between the left frame rod and the right frame rod are different from each other The lifting device described. The hanging bracket is attached to any one of the pair of left and right frame rods so as to be detachable and selectively attachable to the plurality of pairs of left and right frame rods. The lifting device according to claim 8 , wherein

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