JP5282926B2 - Tangle wire entanglement prevention device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To set arm length long and to simplify adjustment of an elastic force, in a device for retaining the space of a sling wire hung in a crane hook and preventing entanglement of the sling wire. <P>SOLUTION: In the front end of a body section with appropriate elasticity with a plate-like spring, a plurality of arm bodies 1 with ring sections for inserting the wire are protruded by desired length, respectively symmetrically, and the base sides of the arm bodies are connected and fixed by a connector 2. Moreover, a string-like member 3, having appropriate length, is connected in hanging sections provided on the base sides of the respective arm bodies or the connector. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to a tangling wire entanglement prevention device.

  In lifting work such as crane lifting of materials at construction sites and cargo handling sites, and material lifting with mobile crane equipment installed in the factory, the lifting object (hanging load) is placed on the lower end of the wire hooked on the crane hook. The crane lifts up the crane by connecting and securing the wire. In particular, the wire to be hooked on the crane hook is generally referred to as a sling wire (a concept including a chain material other than a wire material and a rope material).

  When this sling wire is hung on a crane hook and lifted, it is very easy to get entangled, which is particularly remarkable in a no-load state.

  Therefore, a means for preventing tangling of the sling wire has been proposed for some time. As disclosed in Patent Document 1 (Japanese Utility Model Publication No. 5-95970) as the simplest structure, an instrument having a ring portion with a constant interval is used. By inserting one sling wire through the ring part, the sling wire hanging from the crane hook is separated, and the slack wires are prevented from getting tangled with each other.

  Patent Document 2 (Japanese Patent Application Laid-Open No. 2006-111432) includes a hanging means for hooking a crane or the like on the top of a substantially inverted V-shaped slinging wire separating member, and the top is used as a fulcrum. The angle formed by the extended arm can be opened and closed, and a ring portion through which a sling wire is inserted is provided at a required position of the left and right arms, respectively, and the height is set at a predetermined height position of the left and right arms. An entanglement preventing device having a configuration in which a slender ring-shaped member for checking a hanging angle surrounding the entire outer periphery of the left and right arms at a position is disclosed.

  In particular, as a means for opening and closing the angle formed by the arms extending left and right with the top of the left and right arms as a fulcrum, a winding spring configuration with appropriate elasticity is adopted by bending the steel material in a ring at the top a required number of times. ing.

Japanese Utility Model Publication No. 5-95970. Japanese Patent Laid-Open No. 2006-111432.

  The above-described tangling wire entanglement prevention device or the like is designed to hold and suspend the slinging wire at a constant interval. However, the device described in Patent Document 1 holds the slinging wire apart with a wide gap. In other words, it is proposed that there is a problem in use at a hanging position narrower than the above-mentioned distance, and the wire holding interval is set narrow. For this reason, it is difficult to say that the tangling wire is completely prevented from being entangled, and if the interval between the wires attached to the suspended load is wide, the wire angle changes at the position of the tangling prevention device, and an unnatural load is applied to the wire. End up.

  Moreover, since the apparatus currently disclosed by patent document 2 also considers the state expanded from the wire hanging position of an initial state in order to confirm the hanging angle of a slinging wire, it is the same as that of the instrument of patent document 1 The wire holding interval is set to be narrow, and it is difficult to say that the tangling of the sling wire is completely prevented.

  Further, the wire holding portion (left and right arms) described in Patent Document 2 is formed by winding a steel material in a ring shape at a top portion for a necessary number of times in order to provide appropriate elasticity on the premise of operation in the spreading or opening / closing direction. Thus, a winding spring configuration with corresponding elasticity is adopted.

  However, the above-mentioned wound spring structure is determined by the thickness and material of the steel material used, while the thickness of the sling wire (wire weight) is naturally different depending on the crane's suspended load, and the elastic function and arm length are used. Cannot flexibly correspond to the target crane device.

  Therefore, the present invention proposes a novel tangling wire anti-tangling device that can solve the problem of the interval between the staking wires and the adjustment of the elastic function.

The staking wire tangle prevention device according to the present invention (Claim 1) has a plurality of arm bodies each having a ring portion for inserting a wire at the tip of a main body portion acting as a leaf spring , each having a desired length symmetrically. together we are protruded fixedly connecting the base portion of the arm member by a connecting member made by connecting a cord-like member of suitable length hanging portion provided on the base portion side or connection of each arm body, the crane the string-like member It is used by hanging on the hook, and when a hanging load does not act, the sling wire that is inserted through the ring part and suspended downward keeps a wide distance corresponding to the length of each arm body. When the suspension load is applied, the main body acting as a leaf spring bends and the suspending operation is performed in a state where the sling wire is stretched in a straight line .

  Thus, if the sling wire is inserted into the ring part and the hanging string-like member is hung on the crane hook and suspended, the elastic force of the arm body in the unloaded state (the state where the suspended load is not suspended) Therefore, the sling wire is suspended and held at a wide interval corresponding to the length of the arm body, and it is surely preventing the slack wire from getting entangled. A sling wire that is spaced apart is connected to a suspended load, and the suspended load is lifted. At that time, the arm body is bent and the sling wire is stretched in a straight line without any trouble. This is the same as the lifting and moving work.

  Further, the present invention (Claims 2 and 3) is the above-described tangling wire entanglement preventing device, wherein the main body portion of the arm body is formed of a base portion having a ring portion and a leaf spring member attached to the back surface of the base portion. In particular, a through-hole penetrating the front and back at appropriate intervals is formed at the base of each arm body, and the connecting body is formed in a structure that is clamped and fixed through the through-hole of the overlapping portion of each arm body. Therefore, it is possible to easily incorporate a plate spring member that is difficult to process into the main body of the arm body, and to easily and accurately change the arm length of the arm body by selecting a through hole as a connection position. .

  According to the present invention (Claims 4 and 5), in the above-described tangling wire tangling prevention device, the arm body is formed of a leaf spring member, and the connecting body is fixed by clamping the arm body overlapping portion from above and below. When the ring portion is attached to the leaf spring member, the leaf spring member itself constitutes the main body portion of the arm body.

  Further, the present invention (Claim 8) is formed by laminating a plurality of leaf springs and forming each arm body by forming a plurality of leaf springs when forming the arm body. The elastic force of the arm body is selected by selecting the number of leaf springs. Can be made as desired.

  As described above, the configuration of the present invention is an entanglement prevention device in which a leaf spring member is provided on an arm body that keeps the interval between the sling wires, and since the arm length can be easily set, the sling wire can be set by selecting and setting the arm length. It is possible to reliably prevent the entanglement.

  In particular, the use of leaf springs simplifies the connecting structure of the arm bodies and makes it easy to adjust the arm length, and the elastic force can be easily adjusted by forming the laminated leaf springs of the arm bodies. is there.

  Next, an embodiment of the present invention will be described. The staking wire tangle prevention device shown in the embodiment is a device used for crane work that employs two staking wires 01, and shows an example in which a hanging portion is provided on an arm body. , Two arm bodies 1, a connecting body 2, and a string-like member 3.

  The arm body 1 has a main body part 11, a ring part 12 attached to the main body part 11, and a hanging part 13 for suspension. The main body part 11 includes a base part 111 formed of a stainless steel plate, a base part A plate spring member 112 superposed on the back surface of the portion 111 is integrally formed with a winding metal 113, and the ring portion 12 and the hanging portion 13 are provided at predetermined positions on the surface of the base portion 111. .

  In addition, a plurality of through holes 114 are formed at appropriate intervals on the base side of the base portion 111 (where the leaf spring member is not superposed).

  As shown in FIG. 4, the connecting body 2 includes a tray 21, a washer 22, a bolt 23, and a nut 24, and the tray 21 has a bottom plate portion 211 and front and rear plates 212 corresponding to the width of the main body portion 11 of the arm body 1. , 213, and through holes 214 are formed in the bottom plate portion 211. The hanging string-like member 3 is formed of a chain or a wire.

  The apparatus is assembled by combining the above-described components. The base end sides of the two arm bodies 1 are stacked on the bottom plate portion 211 of the connecting body 2 and pass through the through holes 114 and 214 and the washer 22. Then, the bolts 23 are attached, the arm body 1 is fixed integrally with the connecting body 2 by tightening the nut 24, and the string-like member 3 is connected to each hanging portion 13 of the left and right arm bodies 1.

  In addition, the selection of the location to be connected among the plurality of through holes 114 is determined in accordance with the interval between the suspended locations where the crane works.

  Of course, when the arm length is determined in advance (when it is not necessary to adjust the length of the arm body), a single through hole 114 is provided, and the main body 11 of the left and right arm bodies 1 is connected and fixed by the connecting body 2. In addition, the plate spring member 112 may be configured such that the left and right arm bodies 1 are continuous.

  Thus, in order to use the device for slinging, the sling wire 01 hooked on the crane hook 02 is inserted into the ring portion, and the string-like member 3 is hung on the crane hook 02 and suspended. It is.

  In the state where the suspended load is not suspended, the sling wire 01 is suspended with a sufficiently wide interval corresponding to the length of the arm body 1 by the elastic force of the arm body 1 (elastic force of the leaf spring member). Since it is held down, it reliably prevents the sling wire 01 from getting tangled.

  And when carrying out the load hanging work by the crane, the suspended load 04 is lifted by using the hanging tool 03 connected to the lower end of the sling wire 01 which is spaced apart. When a load is applied to the sling wire 01, the arm body Since 1 is formed by a leaf spring, the sling wire 01 is bent and stretched in a straight line, and is performed in the same manner as a normal load-carrying operation with a crane without any trouble.

  In particular, since the arm length of the arm body 1 can be adjusted corresponding to the connection location of the sling wire 01 in the suspended load 04, the position of the suspension 03 is set in advance so that the suspended load 04 can be connected efficiently. Can be done automatically. Of course, as shown in FIGS. 1, 2, 7, and 8, the hanging tool 03 may be a member having an arbitrary structure corresponding to the hanging load 04.

  In the present invention, as illustrated in FIGS. 5 to 8, the hook portion may be provided on the coupling body, or the body portion of the arm body may be configured by the leaf spring member itself.

  That is, the arm body 4 is formed by forming the main body portion 41 itself with a leaf spring member and attaching the ring portion 42. The ring portion 42 is formed by welding the semicircular ring 422 to the cylindrical portion 421. A plate spring member that is troublesome to weld by inserting the main body portion 41 into the cylindrical portion 421 and fixing it with the clamping pressure by the pressing bolt 423 is formed. A ring portion 42 is attached to the main body portion).

  As shown in FIG. 5 (b), when the hook portion is not formed on the coupling body 5, the hook portion 43 may be attached to the main body portion 41, and the attaching means is a tube like the ring portion 42. A semicircular ring 432 is welded to the shape portion 431 to give the function of the hanging portion 43 and is attached with a pressing bolt.

  As shown in FIG. 6, the connecting body 5 includes a cylindrical portion 51 corresponding to the configuration of the arm body 4, a pressing bolt 52 screwed on the tubular portion 51, and a hook portion 53 attached to the tubular portion 51. The hook portion 53 is provided with an insertion hole 531.

  The arm body 4 is connected and fixed by inserting the base end portions of the left and right arm bodies 4 into the cylindrical portion 51 from the left and right sides and tightening the pressing bolts 52. In order to prevent this, a non-slip plate 54 may be interposed as appropriate.

  Thus, the string member 3 is passed through the insertion hole 531 and incorporated into the slinging device in the same manner as in the first example, thereby preventing the slinging wire 01 from being entangled as in the first embodiment.

  Further, when the weight of the sling wire 01 and the hanging tool 03 is large and a strong elastic force is required for the arm bodies 1, 4, a plurality of leaf spring members are stacked to form the main body portions 11, 41 of the arm bodies 1, 4. Should be formed.

  Further, the sling wire 01 is not limited to two hangings, and can be handled by three hangings or four hangings (illustrated in FIG. 9).

Explanatory drawing which shows the use condition of 1st embodiment of this invention (before lifting). The figure (lifted state). In the perspective view of the arm body, (A) is an exploded perspective view, (B) is a cross-sectional view in a connected state. It is explanatory drawing of the connection body, (A) is an exploded perspective view, (B) is sectional drawing of a connection state. In the arm body of the second embodiment, (a) is an overall perspective view, and (b) shows another example. It is explanatory drawing of the connection body, (A) is a perspective view, (B) is sectional drawing of a connection state. Explanatory drawing which shows the use condition (before lifting). The figure (lifted state). Explanatory drawing of the same example (use of 4 arms).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,4 Arm body 11,41 Main body part 111 Base part 112 Leaf spring member 113 Winding metal 114 Through-hole 12,42 Ring part 13,43 Hanging part 421,431 Cylindrical part 422,432 Semicircular ring 423 Press bolt 2, 5 Linkage 21 Receptacle 22 Washer 23 Bolt 24 Nut 51 Cylindrical Portion 52 Pressing Bolt 53 Hooking Portion 531 Insertion Hole 54 Non-slip Plate 3 String-like Member 01 Crane Wire 02 Crane Hook 03 Suspension Tool 04 Suspension Load

Claims (8)

A plurality of arm bodies each provided with a ring portion for inserting a wire at the front end of the main body portion acting as a leaf spring are protruded by a desired length symmetrically, and the base side of the arm body is connected and fixed with a connecting body. A string-like member of an appropriate length is connected to the base side of each arm body or a hook provided on the connecting body, and is used with the string-like member hooked to the crane hook. The slinging wire that is suspended downward by passing through the section keeps a wide space corresponding to the length of each arm body to prevent entanglement, and when suspended loads act as a leaf spring body An apparatus for preventing entanglement of a slinging wire , wherein the load hanging work is performed in a state where the portion is bent and the slinging wire is stretched linearly . The tangling wire anti-tangling device according to claim 1, wherein the main body portion of the arm body is formed by a base portion having a ring portion and a leaf spring member attached to the back surface of the base portion .   3. A through-hole penetrating front and back at appropriate intervals is formed in a base portion of each arm body, and a connecting body is formed in a structure for penetrating and fixing the through-hole of the overlapping portion of each arm body. The tangling wire anti-tangling device as described.   The tangling wire tangling prevention device according to claim 1, wherein the main body portion of the arm body is formed of a leaf spring member.   The device for preventing entanglement of a sling wire according to claim 4, wherein the connecting body has a structure in which an arm body overlapping portion is clamped and fixed from above and below.   6. The device for preventing entanglement of a sling wire according to claim 1, wherein the hanger is provided on the arm body.   The tangling prevention device for a slinging wire according to any one of claims 1 to 5, wherein the hooking portion is provided on the coupling body.   The tangling wire anti-tangling device according to any one of claims 1 to 7, wherein a plurality of leaf spring members are laminated and integrated to form each arm body.

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