JP2014159331A - Hanging device and hanging auxiliary tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a new hanging device that is simply structured, elongates a lifting stroke and has high safety in use, and a new hanging auxiliary tool used with the hanging device.SOLUTION: The hanging device 1, in which a rear end portion of an arm 4 as a dynamic point side of seesaw motion is pushed down so that an inclination angle (θ) of the arm 4 is fixed, with a front end portion of the arm 4 as the point of action raised, hangs a heavy load W through a funicular body 7 hung down via the front end portion of the arm 4 and lifts the heavy load W by the winding amount of a reel 6. A supporting shaft 42 as a supporting point of the arm 4 is arranged at a position where the length of the front end portion is longer than the length of the rear end portion of the arm 4, and while the inclination angle (θ) of the arm 4 having the front end portion raised by the seesaw motion is within at least 45 degrees, a position of gravity of the arm 4 is set to exist near the front end portion.

Description

  The present invention relates to a suspension device and a suspension assisting tool for suspending a heavy object so as to be lifted and lowered.

  A crane apparatus such as a jib crane or a pull-in crane is used for lifting or transporting heavy objects such as an automobile engine, a generator, a large work, a steel frame, or an iron plate.

  Even if this kind of crane apparatus is small, it is bulky and expensive, and it is difficult to deploy it in a small factory in terms of securing installation space and installation cost.

  Therefore, recently, a simple suspension device that moves an arm by a seesaw motion has been developed (see, for example, Patent Documents 1 and 2 below).

JP 2011-46488 A JP 2004-76509 A

  In the suspension device (heavy work suspension device) described in Patent Document 1, a balance weight that can be moved forward and backward along the arm is arranged on an arm that performs a seesaw motion. That is, the suspension device described in Patent Document 1 changes the moment of the arm by advancing and retracting the balance weight, thereby moving the arm up and down.

  However, the suspension device described in Patent Document 1 requires a driving cylinder that moves the balance weight forward and backward, and a power source that drives the driving cylinder, and thus is expensive.

  On the other hand, the suspension device (loading material lifting machine) described in Patent Document 2 includes a caster at a lower portion near the tip of the frame, and is configured so that the seesaw can be moved around a fulcrum near the caster. It has been done. The suspension device described in Patent Document 2 is a mechanism that causes the frame to seesaw movement manually, and thus raises and lowers a holding link provided at the front end of the frame via a suspension arm. No driving device or control mechanism is provided.

  However, in the suspension device described in Patent Document 2, the caster serving as a fulcrum is provided near the front end of the frame, so that the lifting stroke is very short. In addition, when the heavy load is lifted, the frame falls to the operator side when the heavy load falls because the heavy load slides down from the holding link or the suspension arm is damaged. It is also conceivable for an operator to underlay the frame.

  The present invention has been completed in view of the above technical problem, and has a simple structure, a long lifting stroke and a high safety in use, and a novel lifting apparatus. An object is to provide a novel suspension aid to be used.

  In order to solve the technical problem, the suspension device of the present invention is a suspension device for suspending a heavy object so that it can be lifted and lowered, and a base, a support column arranged in the shape of the base, An arm on which a support shaft is supported so that a seesaw motion can be performed with respect to a bearing existing in the support column, a fixture for fixing an inclination angle of the arm, a reel attached to the arm, and a reel And the rear end side of the arm, which is the power point side of the seesaw movement, is pushed down, and the front end side of the arm, which is the action point side of the seesaw movement, is raised. In this state, the inclination angle of the arm is fixed by the fixing tool, and the heavy object is suspended through the cable body suspended via the front end side of the arm, and the reel is wound up. Raise and lower the heavy object according to the amount The support shaft serving as a fulcrum of the arm is disposed at a position where the length of the front end side of the arm is longer than the length of the rear end side, and the front end side is raised by the seesaw motion. When the angle of inclination of the arm is at least 45 degrees or less, the position of the center of gravity of the arm is on the front end side (hereinafter referred to as the device of the present invention).

  In the device according to the present invention, it is preferable that the reel is attached to the front end side of the arm.

  In the device according to the present invention, it is preferable that the weight member is attached to the front end side of the arm.

  In the device according to the present invention, the bearing is erected at a position facing the bottom plate arranged along the direction intersecting the arm with the longitudinal direction across the short direction of the bottom plate. A side support portion and a rear end side support portion, and the support shaft formed in a cylindrical or columnar shape is placed along the bottom plate, and the front end side support portion And is supported in the gap between the rear end side support portion and the rear end side support portion, and is supported with respect to the bearing, and the front end side support portion extends in the longitudinal direction of the outer peripheral wall of the support shaft. What has the wall surface which can be line-contacted along becomes a preferable aspect.

  In the device according to the present invention, a preferable embodiment is one that can be disassembled into at least three members: the base, the support column, and the arm.

  The suspension assisting tool of the present invention is used in the device of the present invention, and includes a base body on which a heavy object is fixed, and a plurality of through holes provided along the width direction of the base body. It is used that the cable body is directly fastened to one through hole selected from the plurality of through holes, or a hook attached to the tip of the cable body is hooked. It is characterized (hereinafter referred to as “the present invention auxiliary tool”).

  The present invention has a very simple structure, and has a long ascending / descending stroke and high safety in use.

FIG. 1 is a perspective view showing a device of the present invention according to Embodiment 1. FIG. FIG. 2 is a perspective view showing a base in the apparatus of the present invention. FIG. 3 is a perspective view showing the support in the device of the present invention in an enlarged view of a bearing portion. FIG. 4A is an enlarged perspective view showing the front end side of the arm in the device of the present invention, and FIG. 4B is an enlarged perspective view showing the rear end side of the arm. . FIG. 5 is an enlarged perspective view showing a reel portion in the apparatus of the present invention. FIG. 6 is a perspective view showing a state in which the support shaft of the arm is supported on the support column. FIG. 7 (a) is a side view showing the operation of pushing down the rear end side of the arm in the device of the present invention, and FIG. 7 (b) is a side view showing a state in which the inclination angle of the arm is fixed. FIG. FIG. 8 is a perspective view showing a state in which the device of the present invention is disassembled and bundled with a band. FIGS. 9A and 9B are side views showing the operation of lifting and lowering a heavy object in the apparatus of the present invention. 10 is a perspective view showing the auxiliary tool of the present invention. FIG. 11: is a side view which shows the operation | work which raises / lowers a heavy article in the said this invention apparatus using the said this invention auxiliary tool.

  Hereinafter, although the form (embodiment) for carrying out the present invention is explained based on a drawing, the present invention is not limited to this embodiment.

[Embodiment 1]
<Invention Device>
FIG. 1 shows a device 1 of the present invention according to the first embodiment. The device 1 of the present invention includes a base 2, a support column 3, an arm 4, a fixture 5, a reel 6, and a rope body 7. In the following description, “front” indicating the direction is the front end (operation point) side of the arm 4, “rear” is the rear end (force point) side of the arm 4, “right” is the right side viewed from the rear, “Left” means the left side as viewed from the rear.

  The said base 2 is a part used as the foundation of the said this invention apparatus 1. FIG. As shown in FIG. 2, in the present embodiment, the base 2 includes a main frame 21, a main wheel portion 22, a column receiving portion 23, a footrest portion 24, an outrigger 25, a holding member 26, It comprises.

  The main frame 21 has two square pipes (hereinafter referred to as “first pipes”) 211 arranged in parallel with a gap in the left-right direction. The two square pipes (hereinafter referred to as “second pipes”) 212 are bridged, and the second pipe 212 is further separated by another square pipe (hereinafter referred to as “third pipe”) 213. It has a cross-linked structure. The first pipe 211 and the third pipe 213 are arranged at equal intervals. The first pipe 211 is formed with a tap hole 2111 that penetrates the upper wall surface. The first to third pipes 211 to 213 are all made of metal (made of iron), and the first to third pipes 211 to 213 are joined to each other by welding.

  The main wheel portion 22 is a rolling element that is generally referred to as a “universal caster” and whose running direction is variable. The main wheel portion 22 is welded and fixed in a state of being bridged to bridge the second pipe 212 of the main frame 21 at equal intervals across the third pipe 213. Two places (for convenience, four places) are arranged on the lower surface of the angle steel 221. More specifically, one end of the angle steel 221 protrudes somewhat from the main frame 21 toward the rear, and the main wheel portion 22 includes a lower surface of the protruding portion of the angle steel 221 and the angle steel. 221 is disposed on the lower surface of the position sandwiched between the second pipes 212.

  The strut receiving portion 23 is an iron square pipe that is welded and fixed in a vertically standing state on the third pipe 213 in the main frame 21. A tap hole 231 that penetrates the rear wall surface is formed in the column receiving portion 23.

  The footrest 24 is an iron plate welded and fixed to the angle steel 221 and the second pipe 212 in a state of being disposed along the angle steel 221 existing on the right side of the main frame 21.

  The outrigger 25 includes an iron square pipe (hereinafter referred to as “fourth pipe”) 251 having an outer diameter smaller than the inner diameter of the first pipe 211, and an auxiliary wheel portion 252. The fourth pipe 251 has left and right side walls reinforced with a strip-shaped iron plate. A clasp 253 made of a metal plate having substantially the same shape as the end face of the fourth pipe 251 is attached to the rear end of the fourth pipe 251 so as to be rotatable about the center of gravity thereof. . The auxiliary wheel portion 252 is rotatable in a state where a rotating shaft is pivotally supported by bridging the channel steel 2521 welded and fixed to the front end of the fourth pipe 251 and both inner side surfaces of the channel steel 2521. And a wheel 2522 attached to the vehicle.

  The outrigger 25 has a core-sheath structure by being inserted from an opening existing at the front end of the first pipe 211 with the rear end side of the fourth pipe 251 leading, so It becomes telescopic in the direction. The clasp 253 is inserted when the fourth pipe 251 is inserted into the first pipe 211 and the rear end of the fourth pipe 251 is projected from the opening at the rear end of the first pipe 211. The fourth pipe 251 is prevented from coming off by being rotated 90 degrees. The outrigger 25 that is expanded and contracted is fixed by screwing a bolt B into a tap hole 2111 formed in the first pipe 211 and pressing the tip end surface of the shaft of the bolt B against the upper surface of the fourth pipe 251. Is done.

  The holding member 26 is welded and fixed to the second pipe 212 on the rear side of the main frame 21. The holding member 26 is a stopper called “hammer lock type”. The hammer lock type stopper fixes the carriage main body to the ground by slightly raising the wheel of the carriage or the like from the floor surface. In the device 1 of the present invention, the holding member 26 is not necessarily the main wheel portion 22. The main wheel portion 22 is mainly installed on the ground and restricts the rolling of the main wheel portion 22.

  As shown in FIG. 3, the strut 3 is an iron square pipe (hereinafter referred to as “fifth pipe”) 31 having an outer diameter substantially the same as the inner diameter of the strut receiving portion 23 in the base 2. And a bearing 32 attached to the upper end of the fifth pipe 31. The column 3 is attached to the base 2 in a standing state by being inserted into the column receiver 23 with the lower end side of the fifth pipe 31 leading. The column is fixed to the column receiver 23 by screwing a bolt into a tap hole 231 formed in the column receiver 23 and pressing the tip end surface of the bolt shaft against the side surface of the fifth pipe 31. Done.

  The bearing 32 includes a bottom plate 321, a front end portion side support portion 322, and a rear end portion side support portion 323.

  The bottom plate 321 is an iron plate processed into a substantially rectangular shape. The bottom plate 321 is welded and fixed to the upper end of the fifth pipe 31 in a state where the longitudinal direction is along the left-right direction and one surface is directed upward. In the present embodiment, a pair of side walls 3211 erected upward are provided on both left and right sides of the bottom plate 321, and a tap hole 3212 is formed in each side wall 3211. .

  The front end side support portion 322 is made of a pair of angle steels. The front end side support portion 322 is configured so that the middle of one side wall is in contact with a side existing on the front side of the bottom plate 321 and the fifth pipe 31 is sandwiched from the left and right sides on the other side wall. The five pipes 31 are fixed by welding.

  The rear end side support portion 323 is made of a pair of iron plates processed into a substantially L shape. The rear end side support part 323 is welded and fixed to the fifth pipe 31 so as to be in contact with a side existing on the rear side of the bottom plate 321 and sandwiching the fifth pipe 31 from the left and right. .

  As shown in FIGS. 4A and 4B, the arm 4 includes an arm main body 41 and a support shaft 42. The arm body 41 includes an iron square pipe (hereinafter referred to as “sixth pipe”) 411 and an iron square pipe (hereinafter referred to as “seventh pipe”) having an outer diameter smaller than the inner diameter of the sixth pipe 411. 412).

  A latch claw 4111 is welded and fixed to the upper surface of the rear end of the sixth pipe 411, and a handle 4112 made of a cylindrical iron pipe is welded and fixed to the lower surface of the rear end. The rear end of the sixth pipe 411 is closed by a metal plate. Further, the sixth pipe 411 is formed with a tap hole 4113 penetrating one side wall.

  The seventh pipe 412 has its left and right side walls reinforced by a strip-shaped iron plate 4124. A pulley portion 4121 is attached to the front end of the seventh pipe 412. The pulley part 4121 is rotatable in a state in which a rotating shaft is pivotally supported by bridging the channel steel 4121 welded and fixed to the front end of the seventh pipe 412 and both inner side surfaces of the channel steel 4121. A pulley 41212 is attached, and a guide bar 41213 is provided at the top of the pulley 41212 so as to bridge both inner side surfaces of the channel steel 4121. The seventh pipe 412 is formed with a plurality of through holes 4123 along the length direction on one side wall.

  The seventh pipe 412 has a core-sheath structure by being inserted through an opening existing at the front end of the sixth pipe 411 with the rear end side leading, so that the seventh pipe 412 is extendable with respect to the sixth pipe 411. Become. The expanded seventh pipe 412 is fixed by superimposing the tap hole 4113 formed in the sixth pipe 411 and one of the through holes 4123 formed in the seventh pipe 412. In addition, this is done by inserting the shaft of the bolt B.

  The support shaft 42 is made of a cylindrical iron pipe. The support shaft 42 is welded and fixed to the lower surface of the sixth pipe 411 in the arm body 41. The distance from the fixed position of the support shaft 42 to the pulley portion 4121 (the “length on the front end side” in the claims) is from the fixed position of the support shaft 42 to the rear end of the sixth pipe 411. It is set longer than the distance (“length on the rear end side” in the claims). In the present embodiment, a contact piece 43 made of a pair of metal plates is fixed by welding at an upper portion of the attachment position of the support shaft 42 and a position sandwiching the sixth pipe 411 from the left and right.

  The fixture 5 is an iron chain (see FIG. 1). One end of the fixing tool 5 is connected to a U-shaped metal fitting 29 fixed to the second pipe 212 on the rear side of the main frame 21 of the base 2.

  As shown in FIG. 5, the reel 6 is attached to the upper surface of the sixth pipe 411 in the arm main body 41. The reel 6 includes an installation base 61 fixed to the upper surface of the sixth pipe by welding, and a reel body 62 fixed to the installation base 61 with bolts. The reel body 61 is rotated by operating a ratchet 611. The reel 6 is disposed at a position closer to the front end of the sixth pipe 411 than the fixed position of the support shaft 42 (“front end side” in the claims).

  The rope 7 is a cloth belt (see FIG. 1). The cable body 7 is wound around the reel 6. A hook 71 is attached to the distal end of the cable body 7 as desired.

  The device 1 of the present invention having the above configuration inserts the column 3 into the column receiving portion 23 of the base 2, and attaches the arm 4 to the bottom plate 321 of the bearing 32 attached to the upper end of the column 3. The spindle 42 is assembled by placing it from above.

  The cable body 7 is pulled out from the reel 6 and passes between the pulley 41212 and the guide rod 41213 of the pulley portion 4121 attached to the front end of the arm 4 via the front end side of the arm 4. It is suspended from the arm 4 while being passed.

  In the state in which the column 3 is inserted into the column support 23, a bolt shaft is screwed into a tap hole 231 formed in the column support 23, and the tip of the bolt shaft is brought to the side of the column 3. By being abutted, it is fixed to the column support 23.

  As shown in FIG. 6, the arm 4 has the support shaft 42 placed along the bottom plate 321 of the bearing 32, and the front end side support portion 322 and the rear end portion side support portion 323. The bearing 32 is pivotally supported so as to be able to perform seesaw motion.

  In the present embodiment, the bearing 32 has a wall surface on which the front end side support portion 322 can come into line contact along the longitudinal direction of the outer peripheral wall of the support shaft 42. During movement, the support shaft 42 is preferably restrained from tilting or shaking. The height of the front end side support portion 322 (the distance from the upper surface of the bottom plate 321 to the upper end of the wall surface of the front end side support portion 322) is 1.5 times or more the outer diameter of the support shaft 42 (more preferably). Is preferably 2 times or more). Further, the width of the front end side support portion 322 (the total width of the wall surfaces of the pair of front end side support portions 322) is the sum of the lengths of both end portions of the support shaft 42 projecting to the left and right of the arm 4. Is preferably 50% or more (more preferably 80% or more).

  In the present embodiment, the contact piece 43 is attached to the arm 4, but the inclination angle (θ) of the arm 4 is not fixed by the fixture 5. In this case, it contacts the front end side support portion 322 of the bearing 32 and plays a role of preventing the inclination angle (θ) of the arm 4 from becoming 0 degrees or less.

  Further, in this embodiment, in order to further ensure safety, the bolts B are screwed into the respective tap holes 3212 formed in the pair of side walls 3211 provided on the left and right side edges of the bottom plate 321, The arm 4 is supported more reliably by inserting the B shaft from both open ends of the support shaft 42. At this time, the distance between the side walls 3211 facing each other is determined so that the shaft of the bolt B protruding from the tap hole 3212 can be surely inserted into the support shaft 42. It is preferable that the length of the support shaft 42 is longer than that of the support shaft 42 so that a gap (preferably a gap of 5 to 20 mm) is formed between the side wall 3211 and the end of the support shaft 42.

  As shown in FIG. 7 (a), the seesaw motion of the arm 4 in which the support shaft 42 is pivotally supported by the bearing 32 is performed by pushing down the rear end side of the arm 4 which is the power point side. . The footrest 24 is attached to make it easier for an operator to place his / her foot on when pushing down the rear end side of the arm 4. By this operation, the front end side of the arm 4 that is the action point side of the seesaw motion is raised. Next, as shown in FIG. 7B, when the fixture 5 is hooked on the hooking claw 4111, the inclination angle (θ) of the arm 4 is fixed.

  In the device 1 of the present invention, the arm 4 is set such that the length on the front end side is longer than the length on the rear end side. As a result, when the support shaft 42 is pivotally supported by the bearing 32, the arm 4 is biased in a direction in which the center of gravity is biased toward the front end portion and the front end portion is lowered. In the device 1 of the present invention, when the inclination angle (θ) of the arm 4 that has raised the front end side by the seesaw motion is within at least 45 degrees (more preferably, within 50 degrees), the arm 4 The center of gravity position is located on the front end side. Accordingly, it is possible to suitably suppress the support shaft 42 from being detached from the bearing 32 during the adjustment operation of the inclination angle (θ) of the arm 4. In addition, it is possible to suitably suppress an accident in which a finger is accidentally pinched between the arm 4 and the support column 3 during the adjustment of the inclination angle of the arm 4.

  In the device 1 of the present invention, the position where the reel 6 is attached to the arm 4 is the front end side of the arm 6. As a result, when the support shaft 42 is pivotally supported by the bearing 32, the center of gravity of the arm 4 is further biased toward the front end side, and the urging force in the direction in which the front end side is lowered increases. The same effect can be obtained by attaching a weight member (weight) for applying a load to the front end side of the arm 6 together with the reel 6 or instead of the reel 6.

  In the present embodiment, the arm 4 is extendable and retractable. However, in the scope of claims, “when the inclination angle of the arm that has raised the front end side by the seesaw motion is at least within 45 degrees, The description “the center of gravity position of the arm exists on the front end side” means the center of gravity position in a state where the arm 4 is most contracted.

  In the present embodiment, since the arm body 41 is formed of straight square pipes (sixth pipe 411 and seventh pipe 412), the inclination angle (θ) of the arm 4 is determined by the arm body. The inclination angle is equal to 41. However, the device 1 of the present invention does not deny that the arm main body 41 is curved or bent. Therefore, in the device 1 of the present invention, the tilt angle (θ) of the arm 4 may be different from the tilt angle of the arm body 41. Therefore, in the device 1 of the present invention, the inclination angle (θ) of the arm 4 is an imaginary straight line that connects the support shaft 42 and the tip of the arm 4 (in this embodiment, the position where the pulley portion 4121 exists). And the angle formed by the horizontal plane.

  The device 1 of the present invention having the above configuration can be easily disassembled into at least three members, that is, the base 2, the support column 3, and the arm 4 during storage. Also, the pair of outriggers 25 can be removed from the base 2. The disassembled device 1 of the present invention can be very compactly assembled as shown in FIG. 8, and can be fastened with a band. As a result, the device 1 of the present invention can easily secure a storage space and has improved transportability.

  Moreover, the device 1 of the present invention having the above-described configuration can be manufactured by combining members such as a metal pipe, an angle, channel steel, and an iron plate. Further, commercially available products can also be used for the main wheel portion 22, the sub wheel portion 252, the fixture 5, the reel 6, and the cable body 7. Therefore, the device 1 of the present invention has a very low manufacturing cost.

<Raising / lowering work of heavy object W using the device 1 of the present invention>
In FIG. 9, the raising / lowering operation | work of the heavy article W using this invention apparatus 1 is shown.
In performing the lifting / lowering operation of the heavy object W using the apparatus 1 of the present invention, the apparatus 1 of the present invention is first transported to the vicinity of the heavy object W. In the device 1 of the present invention, since the main wheel portion 22 is a free caster, the traveling direction can be freely set. Further, the auxiliary wheel portion 252 improves the straight running stability. Furthermore, since the said invention apparatus 1 can shrink the outrigger 25 and make it compact, it can also run the working path in a small factory. Thus, the device 1 of the present invention is easily transported to the vicinity of the heavy object W.

  As shown in FIG. 9 (a), the device 1 of the present invention conveyed to the vicinity of the heavy object W is positioned so that the heavy object W exists between a pair of the outriggers 25.

  When the installation position of the device 1 of the present invention is determined, the expansion / contraction length of the outrigger 25 in the base 2 is fixed. The expansion / contraction length of the arm 4 is also determined. The expansion / contraction length of the outrigger 25 is appropriately determined according to the weight of the heavy object W and an allowable space. The expansion / contraction length of the arm 4 is appropriately determined according to the size of the heavy object W and the planned suspension height. When the expansion / contraction length of the outrigger 25 and the expansion / contraction length of the arm 4 are determined, the holding member 26 is pushed down to fix the base 2.

  Next, when the worker holds the handle 4112 and pushes down the rear end side of the arm 4 by the human power of the worker and hooks the fixture 5 on the latching claw 4111, the arm 4 The inclination angle (θ) is fixed at a desired angle (see FIG. 7). The inclination angle (θ) of the arm 4 is appropriately determined according to the size of the heavy object W and a planned suspension position.

  When the inclination angle (θ) of the arm 4 is fixed, the rope body 7 is pulled out from the reel 6 as shown in FIG. 9B, and the hook 71 attached to the tip of the rope body 7 is By hanging on a heavy object W and operating the ratchet 611 on the reel 6, the cable body 6 is wound up and the heavy object W is lifted.

  If the holding device 26 is released in this state, the device 1 of the present invention can be moved while the heavy object W is suspended. Further, the heavy object W is suspended by operating the ratchet 611 in the reel 6 to feed out the rope body 6.

  According to the above process, the device 1 of the present invention showing the lifting work of the heavy object W can appropriately change the front end position of the arm 4 according to the size of the heavy object W and the planned suspension position. . Moreover, since the length on the front end side of the arm 4 is set longer than the length on the rear end side, a sufficient lifting stroke can be ensured.

  In the present embodiment, the base 2 includes the main wheel 22 and the auxiliary wheel 252 in order to improve the transportability of the device 1 of the present invention, but the main wheel 22 and the auxiliary wheel are provided. 252 is not an essential component in the device 1 of the present invention. In the base 2, when the main wheel 22 and the sub wheel 252 are not provided, the base 2 is directly grounded. Therefore, the holding for fixing the base 2 is performed. Neither the member 26 nor the footrest 24 used when pushing down the rear end side of the arm 4 is required.

  In the present embodiment, a structure in which the bearing 32 is attached to the upper end of one fifth pipe 31 is used for the support 2, but in the device 1 of the present invention, the number of the supports 2 is It is not necessarily limited to only one. In the device 1 of the present invention, for example, two support columns 2 are erected on the base 2 and are supported in a state in which the support shafts are passed to bearings 32 respectively existing on the two support columns 2. It may be structured. Further, the structure of the bearing 32 is not particularly limited as long as it supports the support shaft 42 so that the arm 4 can perform seesaw motion.

  In the present embodiment, the outrigger 25 and the arm 4 can be expanded and contracted. However, in the device 1 of the present invention, it is not always necessary to provide an expansion / contraction function to the outrigger 25 and the arm 4.

  In this embodiment, a chain is used for the fixture 5. However, in the device 1 of the present invention, the fixture 5 is not particularly limited as long as it can fix the inclination angle (θ) of the arm 4. It is not something. Examples of the fixture 5 include a wire and a band.

  In the present embodiment, the reel 6 that is rotated by a ratchet 61 is used. However, in the device 1 of the present invention, the means for rotating the reel 6 is not particularly limited. Examples of the reel 6 include one that is rotated by a handle and one that is rotated by electric power.

  In this embodiment, a cloth-made belt is used for the cord 7, but in the device 1 of the present invention, the cord 7 can be wound around the reel 6, and the weight W It does not specifically limit if it has the intensity | strength which can endure a load. As an example of the rope 7, a wire or a chain can be raised. In the present embodiment, the hook 71 mounted on the tip of the cable body 7 is hung on the heavy object W, and the heavy object W is suspended. A tool may be used, or the rope 7 may be directly fastened to the heavy object W.

[Embodiment 2]
<Invention auxiliary tool 10>
In FIG. 10, this invention auxiliary tool 10 is shown. The auxiliary tool 10 of the present invention includes a base body 11 and a plurality of through holes 12.

  The base body 11 includes a base body 111 made of an iron square pipe and a hanging part 112 made of an iron plate material. A plurality of heavy object fixing hooks 113 are fixed to the lower surface of the base body 111 by welding. It is preferable that the tip of the heavy load fixing hook 113 is inclined toward the inner side of the base body 11 (more preferably, 45 to 85 degrees with respect to the horizontal plane).

  The hanging portion 112 is welded and fixed along the length direction of the base body 111 on the upper surface of the base body 111.

  The through-hole 12 is formed along the length direction of the suspension part 112 (that is, along the length direction of the base), and a plurality (five in the present embodiment) are constant. They are spaced apart.

<Up-and-down operation of heavy article W using the auxiliary tool 10 of the present invention>
FIG. 11 shows the lifting operation of the heavy object W using the auxiliary tool 10 of the present invention.
As shown in FIG. 11A, the auxiliary tool 10 of the present invention is fixed to the upper surface of the heavy object W. In the present embodiment, the auxiliary tool 10 of the present invention is fixed to the upper surface of the heavy object W using the heavy object fixing hook 113.

  In suspending the heavy object W by the device 1 of the present invention, first, the hook 71 attached to the tip of the cable body 7 of the device 1 of the present invention is provided with a plurality of hooks provided on the assisting device 10 of the present invention. The reel 6 is slightly lifted by being hooked on one of the through holes 12 (preferably, the through hole 12 located on the most central side) and rotating the reel 6.

  At this time, if the weight W is balanced, the weight W is lifted up almost without being inclined.

  However, as shown in FIG. 11 (b), when the balance of the heavy object W is uneven, the heavy object W is lifted in a state of being inclined to the side where the center of gravity exists. At this time, if the tip of the heavy load fixing hook 113 is inclined toward the inside of the base body 11, the heavy load W can be prevented from falling.

  In such a case, once the heavy load W is lowered and the hook 71 is hooked again on the through-hole 12 in the direction in which the center of gravity of the heavy load W exists as shown in FIG. It is possible to lift the heavy object W with an uneven balance almost without inclining.

  The auxiliary tool 10 of the present invention is preferably used when lifting and lowering the heavy object W by the apparatus 1 of the present invention, but can also be used in a suspension device other than the apparatus 1 of the present invention. is there.

  The rest is the same as that described in the first embodiment, and the description is omitted here to avoid repetition.

  The present invention can be implemented in various other forms without departing from the spirit or main features thereof. Therefore, the above-mentioned embodiment is only a mere illustration in all points, and should not be interpreted limitedly. The scope of the present invention is indicated by the claims, and is not restricted by the text of the specification. Further, all modifications and changes belonging to the equivalent scope of the claims are within the scope of the present invention.

  The device of the present invention is suitably used as a device for lifting and lowering heavy objects. The auxiliary tool of the present invention is preferably used when lifting and lowering heavy objects by the device of the present invention.

1 Device of the present invention (Hanging device)
2 Base 21 Main frame 22 Main wheel portion 23 Column support portion 24 Foot rest portion 25 Outrigger 252 Sub wheel portion 26 Holding member 3 Column 32 Bearing 321 Bottom plate 322 Front end side support portion 323 Rear end side support portion 4 Arm 41 Arm Main body 42 Support shaft 4111 Stopping claw 4112 Handle 4121 Pulley portion 43 Abutment piece 5 Fixing tool 6 Reel 7 Cord body 71 Hook 10 Auxiliary tool of the present invention (suspending auxiliary tool)
11 Substrate 12 Through-hole W Heavy object

Claims (6)

A suspension device for suspending heavy objects so that they can be lifted and lowered,
The base,
A support column arranged in a base shape;
An arm on which a support shaft is supported so that a seesaw motion is possible with respect to the bearing existing in the support;
A fixture for fixing the angle of inclination of the arm;
A reel attached to the arm;
A rope wound around the reel;
Comprising
When the rear end side of the arm that is the power point side of the seesaw motion is pushed down, the front end side of the arm that is the action point side of the seesaw motion is raised, and the tilt angle of the arm with the fixture Is fixed, and holds the heavy load via the cable body suspended via the front end side of the arm, and lifts and lowers the heavy load by the winding amount of the reel,
The support shaft serving as the fulcrum of the arm is disposed at a position where the length of the front end portion side of the arm is longer than the length of the rear end portion side, and the inclination of the arm is raised by the seesaw motion. The suspension device is characterized in that the position of the center of gravity of the arm exists on the front end side when the angle is at least 45 degrees or less. The suspension device according to claim 1,
A suspension device in which the reel is attached to the front end side of the arm. The suspension device according to claim 1 or 2,
Furthermore, the weighting member is attached to the front end portion side of the arm. The suspension device according to any one of claims 1 to 3,
The bearing is
A bottom plate disposed along the direction intersecting the arm in the longitudinal direction;
A front end side support portion, and a rear end side support portion, which are arranged at positions facing each other across the short direction of the bottom plate;
Comprising
The support shaft in a cylindrical or columnar shape is placed along the bottom plate and inserted into a gap existing between the front end side support portion and the rear end side support portion. And supported with respect to the bearing,
The suspension device in which the front end side support portion has a wall surface that can be in line contact along the longitudinal direction of the outer peripheral wall of the support shaft. The suspension device according to any one of claims 1 to 4,
A suspension device that can be disassembled into at least three members of the base, the support column, and the arm. A suspension aid used in the suspension device according to any one of claims 1 to 5,
A substrate to which a heavy object is fixed;
A plurality of through holes provided along the width direction of the substrate;
Comprising
The cable body is directly fastened to one through hole selected from a plurality of the through holes, or a hook attached to the tip of the cable body is hooked and used. Suspension aid to do.

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