JP3190097U - Hanging strap connector - Google Patents

Abstract

The present invention provides a hanging string connector that reduces the risk of a suspended load sliding down when lifting a suspended load with a hanging string.
A connector includes a rod, two hooks provided near both ends of the rod, and a groove provided in a middle portion of the rod. The worker inserts a hanging string 71 and a hanging string 72 extending upward on one side of the suspended load 9 into each of the two hooks included in the first connector 1. In addition, the worker inserts a hanging string 71 and a hanging string 72 extending upward on the other side of the suspended load 9 into each of the two hooks included in the second connector 1. Thereafter, the operator hangs the string 6 so as to pass through the groove provided in the middle part of each of the two connecting tools 1 and tightens the two connecting tools 1 in a direction approaching each other, and Tie. As a result, the separation distance between the hanging strap 71 and the hanging strap 72 is appropriately secured, and the displacement of the hanging strap 71 and the hanging strap 72 with respect to the suspended load 9 is suppressed, and the risk of the sliding of the suspended load 9 is reduced. .
[Selection] Figure 3

Description

  The present invention relates to a connector for connecting a hanging strap hung on a suspended load.

  When lifting a suspended load with a lifting device such as a crane, it is widely performed to hang two suspended strings on the suspended load and lift the suspended load via these suspended strings.

  When a suspended load is lifted by a hanging string, if the hanging position of the hanging string with respect to the suspended load is not appropriate, there is a risk that the balance is lost while the suspended load is being lifted.

  For example, Patent Document 1 discloses a technique for reducing the risk that a suspended load slides down from a hanging string. In Patent Document 1, as a first embodiment, a long holding portion that holds a suspended load in a loop shape, and a direction extending perpendicular to the longitudinal direction of the holding portion are provided. There is described a slinging tool comprising two coupled portions. Two ball hanging tools described in Patent Document 1 are prepared, and the holding portions of these ball hanging tools are hung on the bottom surface of the hanging load at positions that are separated from each other in the longitudinal direction of the hanging load, and the coupling portions of these ball hanging tools are connected to each other. When they are connected, when the holding parts of the two ball hanging tools are about to be displaced in a direction away from each other, the coupling part regulates the deviation. As a result, the risk that the suspended load slides from the holding portion is reduced.

Japanese Patent Laid-Open No. 2002-87753

  When using the slinging tool described in Patent Document 1 described above, the distance between the two hanging straps is determined by the amount of the worker performing the slinging operation. Therefore, if the distance between the two hanging straps is insufficient, there is a risk that the hanging load will swing greatly when the suspended load is lifted and the suspended load will slide off the hanging strap.

  FIG. 9 shows the separation distance between the hanging strap 71 and the hanging strap 72 when the hanging load 9 is lifted by the hook 8 of the crane (not shown) via the hanging strap 71 and the hanging strap 72 hung on the hanging load 9. It is the figure which showed a mode that suspended load 9 slipped off. As shown in FIG. 9A, if the distance between the hanging strap 71 and the hanging strap 72 is insufficient, the suspended load 9 can be easily balanced by a swing (arrow X) generated when the suspended load 9 is lifted. 9 (b), the position of the hanging strap 71 or the hanging strap 72 hung on the hanging load 9 is shifted (arrows Y1 and Y2), and the hanging load 9 further loses balance and slides down (arrow Z) There is a risk of

  Moreover, when using the ball hanger described in Patent Document 1 described above, the displacement of the two hanging straps in the direction away from each other is regulated, but the displacement in the direction approaching each other is not regulated. Therefore, depending on the shape of the suspended load or the like, there is a risk that the two suspended loads will shift in the direction in which they approach each other, and the suspended load will slide off the suspension strap.

  FIG. 10 shows that when the suspended load 9 having a curved bottom surface that protrudes upward is lifted through the hanging strap 71 and the hanging strap 72, one of the hanging strap 71 and the hanging strap 72 is displaced in a direction approaching the other. It is the figure which showed a mode that the suspended load 9 slides down. In this example, as shown in FIG. 10A, before the lifting of the suspended load 9 is started, the suspended string 71 and the suspended string 72 are properly separated and hung on the suspended load 9. However, as shown in FIG. 10 (b), the suspension string 72 is displaced in the direction approaching the suspension string 71 (arrow Y) due to, for example, shaking generated when lifting the suspended load 9. However, the hanging strap 71 is not displaced, for example, because the frictional resistance with the hanging load 9 is greater than the frictional resistance between the hanging string 72 and the hanging load 9. Also in this case, there is a risk that the suspended load 9 loses balance and slides down (arrow Z).

  In view of the above circumstances, an object of the present invention is to reduce the risk of a suspended load sliding down when lifting a suspended load with a hanging strap.

  In order to achieve the above object, the present invention provides a rod, a first hook fixed to the rod and hanging on a first hanging strap hung on a suspended load, and the first hook on the rod. And a second hook for securing the second hanging strap, which is fixed to the isolated position and hooked on the hanging load together with the first hanging strap, as a first aspect. suggest.

  Moreover, this invention is a connection tool concerning said 1st aspect, Comprising: The said stick | rod has a 1st part and a 2nd part, The said 2nd part of the said stick | rod is the said 1st part of the said stick | rod. A coupling device provided with a fixture that is extendable in the longitudinal direction with respect to the first portion and that fixes the second portion of the rod with respect to the first portion of the rod and releases the fixation; This is proposed as the second aspect.

  Moreover, this invention is a connection tool concerning said 1st or 2nd aspect, Comprising: The said connection of the string which connects the other connection tool concerning said 1st or 2nd aspect, and the said connection tool In order to restrict movement of the tool in the longitudinal direction, a connecting tool including at least one of a groove, a hook, and an annular body provided in the rod is proposed as a third aspect.

  In addition, the present invention provides a connector according to the first or second aspect, wherein the rod is used to connect the connector with another connector according to the first or second aspect. A connecting device including a connecting portion which is a string or a rod provided so as to be stretchable in a direction perpendicular to the longitudinal direction of the rod is proposed as a fourth aspect.

  Moreover, this invention is a connection tool concerning said 4th aspect, Comprising: The said connection part is a strip | belt-shaped string, A connection tool provided with the hook-and-loop fastener fixed to the surface of the said connection part is 5th. Proposed as an aspect.

  Moreover, this invention is a connection tool concerning said 4th aspect, Comprising: The said connection part is a stick | rod, The said connection part has a 1st part and a 2nd part, The said part of the said connection part The second portion is provided to be extendable and contractible in the longitudinal direction with respect to the first portion of the connecting portion, and fixing the second portion of the connecting portion to the first portion of the connecting portion and the fixing A connecting tool including a fixing tool for releasing is proposed as a sixth aspect.

  According to the present invention, the worker hooks the first hanging strap hung on the suspended load on the first hook, and the second hanging hook hung on the same hanging load on the second hook. By hanging the string, the separation distance between the first hanging string and the second hanging string can be easily made appropriate. Further, according to the present invention, when the suspended load is lifted, the movement of the first hanging strap and the second hanging strap is restricted in both the direction in which they are separated from each other and the direction in which they are approached. As a result, the risk of sliding off the hanging strap when the suspended load is lifted is reduced.

It is an external view of the coupler concerning one embodiment of the present invention. It is the figure which showed the state by which the connector concerning one Embodiment of this invention was attached to the hanging strap. It is the figure which showed the state by which two connection tools concerning one Embodiment of this invention attached to the hanging string were connected by the string. It is the figure which showed the state by which two connection tools concerning one Embodiment of this invention attached to the hanging string were connected by the string. It is a top view of the connector concerning one modification of the present invention. It is a top view of the connector concerning one modification of the present invention. It is a top view of the connector concerning one modification of the present invention. It is the figure which showed the upper surface figure of the coupling tool concerning the modification of this invention, and the state with which the said coupling tool was attached to the hanging strap. It is the figure which showed a mode that a suspended load fell down by a prior art. It is the figure which showed a mode that a suspended load fell down by a prior art.

[Embodiment]
Hereinafter, a hanging string connector 1 according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an external view of the connector 1. FIG. 1A is a top view of the connector 1 (viewed from above with the connector 1 attached to a hanging strap), and FIG. 1B is a front view of the connector 1. Hereinafter, the top, bottom, left, and right of the connector 1 are the top, bottom, left, and right in the front view shown in FIG.

  The connector 1 includes a rod 11, a hook 12 fixed near one end of the rod 11, a hook 13 fixed near the other end of the rod 11, and a front middle portion of the rod 11. A groove 14 is provided.

  The rod 11 is a rod-shaped member made of a material that does not substantially expand and contract in the longitudinal direction. The hook 12 and the hook 13 have the same shape, and each have a pair of protrusions. The pair of protrusions of the hook 12 and the hook 13 extend from the bar 11 in the front direction, then bend in a direction approaching each other, leaving a gap for inserting / removing the hanging string 71 or the hanging string 72 The tips are facing each other.

  FIG. 2 is a view showing a state in which the connector 1 is attached to the hanging strap 71 and the hanging strap 72. As shown in FIG. 2A, the worker inserts the hanging string 71 hung on the hanging load 9 into the hook 12 and inserts the hanging string 72 hung on the hanging load 9 into the hook 13. As a result, the hanging strap 71 and the hanging strap 72 are hooked together by the connector 1.

  FIG. 2B is a view of the state in which the two connecting tools 1 are attached to the hanging strap 71 and the hanging strap 72 as viewed from the side (the right side of FIG. 2A). Moreover, FIG.2 (c) is the figure which looked at the state in which the two connection tools 1 were attached to the hanging strap 71 and the hanging strap 72 from diagonally upward. Even if only one connecting tool 1 is used, the displacement of the hanging strap 71 and the hanging strap 72 is restricted, so that the risk of sliding the suspended load 9 is reduced. However, as shown in FIGS. 2 (b) and 2 (c), the first connector 1 is attached to a hanging string 71 and a hanging string 72 that extend upward from one side of the hanging load 9, and By attaching the second connector 1 to the hanging strap 71 and the hanging strap 72 extending upward from the other side, and using a total of two connecting tools 1, the above effect can be increased.

  According to the connector 1, the separation distance between the hanging strap 71 and the hanging strap 72 is generally determined by the length of the rod 11 (the separation distance between the hook 12 and the hook 13), so that an appropriate separation distance is always ensured. As a result, the risk of sliding of the suspended load due to the insufficient distance between the two hanging straps is reduced.

  Further, according to the connector 1, the movement of the hanging strap 71 and the hanging strap 72 in both the direction (arrow W in FIG. 2 (a)) and the approaching direction (arrow N in FIG. 2 (a)). Therefore, even if one of the hanging strap 71 and the hanging strap 72 is displaced, neither of them is displaced unless the other is displaced. Therefore, the danger of the suspended load slipping due to the displacement of the hanging strap is reduced.

  FIG. 3 shows the connecting device 1 attached to the hanging strap 71 and the hanging strap 72 on one side of the hanging load 9, and the connecting portion attached to the hanging strap 71 and the hanging strap 72 on the other side of the hanging load 9. It is the figure which showed the state which connected the tool 1 with the string 6. FIG. One end of the cord 6 is tied to the groove 14 of one connector 1, the other end of the cord 6 is tied to the groove 14 of the other connector 1, and the two connectors 1 are connected by the cord 6. Tension is applied in a direction approaching each other (arrow M in FIG. 3B). In addition, the method of tying the string 6 when connecting the two connectors 1 is not limited to this. For example, the string 6 is hung on the two connectors 1 so that the annular string 6 connects the two connectors 1. Other methods such as a method of connecting one end of the passed string 6 and the other end may be employed.

  When the two connecting tools 1 attached to the hanging string 71 and the hanging string 72 are pulled by the string 6 in a direction in which they are close to each other, the hanging string 71 and the hanging string 72 are side or upper edge portions of the suspended load 9 (see FIG. 3 (b), which is pressed firmly against the arrow E), further reduces the risk of the hanging strap 71 and the hanging strap 72 being displaced with respect to the suspended load 9. As a result, the danger of the suspended load 9 slipping is further reduced.

  In particular, as shown in FIGS. 4 (a) and 4 (b), when two or more suspended loads are lifted up, the upper suspended load (suspended load 9U) contacts the hanging string 71 and the hanging string 72. Since the area to be lifted is narrower than that of the lower suspended load (suspended load 9L), the frictional force generated between the suspended strap 71 and the suspended strap 72 is small, and there is a risk of sliding down due to shaking or the like when lifting. Larger than the suspended load. As shown in FIG. 4 (c), when the two connecting tools 1 are connected by the string 6 and tension is applied in a direction approaching each other, the upper edge portion of the suspended load in the uppermost position (see FIG. 4 (c)). Since the hanging strap 71 and the hanging strap 72 are firmly pressed against the arrow E), the risk of the uppermost suspended load slipping is reduced.

  Even when three or more suspended loads are piled up, when the connecting tool 1 is connected by the string 6, the suspended load at the uppermost position and the lowermost position are firmly attached to the suspended string 71 and the suspended string 72. Since the suspended load at the intermediate position sandwiched between the suspended loads is firmly held by the adjacent suspended loads, the risk of any suspended loads falling is reduced.

[Modification]
The connector 1 described above is a specific example of a hanging strap connector according to the present invention, and can be variously modified within the scope of the technical idea of the present invention. Examples of these modifications are shown below. In addition, among the structural parts with which the coupler concerning the modification demonstrated below is provided, the same code | symbol is used for the same part as the structural part with which the coupler 1 concerning embodiment mentioned above is provided, and the description is abbreviate | omitted. Moreover, the structure with which the coupler 1 concerning embodiment mentioned above and the coupler concerning the modification demonstrated below are provided may be combined suitably.

[First Modification]
FIG. 5 is a top view of the connector 2 according to the first modification. The connector 2 includes a rod 21 having a hollow rod 211 and a rod 212 inserted into a hollow portion of the rod 211 instead of the rod 11 included in the connector 1. An operator can slide the bar 212 with respect to the bar 211 in the longitudinal direction.

  The rod 211 of the connector 2 is provided with a screw hole. In addition, the connector 2 includes a screw 25 that is screwed into a screw hole provided in the bar 211. The operator can adjust the length of the bar 21 by adjusting the degree of inserting the bar 212 into the bar 211 and then screwing the screw 25 into the screw hole of the bar 211.

  Further, the hook 211 of the connector 2 is provided with a plurality of hooks 24 at regular intervals in the longitudinal direction, for example, instead of the groove 14 provided in the rod 11 of the connector 1. The hook 24, like the groove 14, plays a role in restricting the string 6 from moving in the longitudinal direction of the connector 2, but from the rod 211 to the outside so as not to prevent the rod 212 inserted into the rod 211 from sliding. It is provided to protrude. In addition, the worker ties the string 6 to the hook 24 located approximately in the center of the longitudinal direction of the rod 21 among the plurality of hooks 24 or puts the string 6 thereon, thereby changing the lengths of the two connecting tools 2. Even so, it is always possible to connect these connecting tools 2 at the approximate center in the longitudinal direction.

  The appropriate distance between the hanging strap 71 and the hanging strap 72 varies depending on the size of the suspended load 9. According to the connector 2, even if the size of the suspended load 9 changes, the operator always adjusts the length of the rod 21, so that the appropriate hanging strap 71 and the suspended string according to the size of the suspended load 9 are always used. The separation distance of the string 72 can be ensured.

[Second Modification]
FIG. 6 is a top view of the connector 3 according to the second modification. Instead of the groove 14 provided in the connector 1, the connector 3 is fixed to the middle part of the rod 11 so as to protrude in the back direction (the direction opposite to the direction in which the hooks 12 and 13 protrude). A body 34 is provided.

  An operator ties the ends of the string 6 to the ring-shaped body 34 of each of the two coupling tools 3 to which the hanging string 71 and the hanging string 72 are attached, or hangs the string 6 and connects both ends to each other. Two connecting tools 3 are connected to each other.

[Third Modification]
In the third modified example, a pair of connecting tools 4a and 4b, which are two connecting tools having different configurations, are used. FIG. 7 is a top view of the connector 4a and the connector 4b. Instead of the groove 14 provided in the connector 1, the connector 4 a includes a belt-like string 44 a provided so as to be stretchable in a direction perpendicular to the longitudinal direction of the rod 11 from the middle part of the rod 11. Similarly, instead of the groove 14 provided in the connector 1, the connector 4 b includes a belt-like string 44 b provided so as to be stretchable in a direction perpendicular to the longitudinal direction of the rod 11 from the middle part of the rod 11.

  A male side member of a hook-and-loop fastener is attached to the lower surface of the string 44a included in the connector 4a. A female member of a hook-and-loop fastener is attached to the upper surface of the string 44b included in the connector 4b. The male member of the hook and loop fastener may be attached to the upper surface of the string 44a, and the female member of the hook and loop fastener may be attached to the lower surface of the string 44b. Moreover, as a hook and loop fastener, the thing of the structure which does not distinguish male and female may be used.

  The operator pulls the string 44a of the connector 4a and the string 44b of the connector 4b attached to the hanging string 71 and the hanging string 72 to each other, and presses the male and female surface fasteners attached to them to each other. 44a and string 44b are connected.

  According to the connecting tool 4a and the connecting tool 4b, the worker can adjust the distance between the two connecting tools more easily than when connecting the two connecting tools using the string 6. .

[Fourth Modification]
In the fourth modification, the connector 1 according to the embodiment and the connector 5 having a configuration different from the connector 1 are used in a pair. FIG. 8 is a top view of the connector 5 (FIG. 8A) and a side view of the connector 5 and the connector 1 attached to the hanging strap 71 and the hanging strap 72 (FIG. 8B). ) And (c)).

  Instead of the groove 14 provided in the connector 1, the connector 5 includes a rod 54 provided so as to extend in a direction perpendicular to the longitudinal direction of the rod 11 from the middle part of the rod 11. The rod 54 includes a hollow rod 541 and a rod 542 inserted into the hollow portion of the rod 541. The operator can slide the bar 542 with respect to the bar 541 in the longitudinal direction.

  The rod 541 is provided with a screw hole. The connector 5 includes a screw 55 that is screwed into a screw hole provided in the bar 541. The operator can adjust the length of the rod 54 by adjusting the extent to which the rod 542 is inserted into the rod 541 and then screwing the screw 55 into the screw hole of the rod 541.

  The rod 541 is attached to the rod 11 so as to be rotatable around an axis whose axis is the longitudinal direction of the rod 11 (arrow R in FIG. 8B). Moreover, the front-end | tip part (end part on the opposite side to the side connected with the bar | burr 541) of the bar | burr 542 becomes hook shape, as FIG.8 (b) shows.

  After attaching the connecting tool 5 and the connecting tool 1 to the hanging strap 71 and the hanging strap 72, the worker adjusts the length of the bar 54, then draws the connecting tool 1 toward the connecting tool 5, After hooking the tip of the shape into the groove 14 of the rod 11 of the connector 1, the hand is released from the connector 5 and the connector 1. The adjustment of the length of the rod 54 may be performed after the operation of hooking the hook-shaped tip of the rod 542 into the groove 14 of the rod 11 of the connector 1. As a result, as shown in FIG. 8C, an appropriate tension is generated between the connector 1 and the connector 5, and the suspended load 9 is firmly held by the hanging strap 71 and the hanging strap 72.

[Other variations]
The shape of the connector shown in the embodiment and the modification described above is a specific example, and the shape of the connector according to the present invention is not limited to these specific examples.

  For example, the shape of the hook 12 and the hook 13 is not limited to the shape shown in FIG. 1 and the like, and any shape may be adopted as long as the hanging strap 71 or the hanging strap 72 can be hooked.

  Further, the mechanism for adjusting the length of the rod 21 of the connector 2 and the mechanism for adjusting the length of the rod 54 of the connector 5 are not limited to those using the above-described screw holes and screws. It is provided to be able to expand and contract in the longitudinal direction with respect to one rod, such as a fixture constituted by a combination of a provided lever and a pressing member that presses and releases the pressure to the rod 212 according to the raising and lowering of the lever. In addition, a fixture having any configuration for fixing the other rod and releasing the fixation may be employed.

  Further, the mechanism for sliding the rod 212 with respect to the rod 211 of the connector 2 and the mechanism for sliding the rod 542 with respect to the rod 541 of the connector 5 are limited to those in which another rod is inserted into the hollow portion of the hollow rod described above. I can't. For example, a configuration in which a rail is provided on the outer surface of the bar 211 and the bar 212 slides on the rail may be employed.

  Moreover, although the shape of the hanging strap 71 and the hanging strap 72 is assumed to be a belt shape, the shape thereof is not limited to the belt shape, and may be, for example, a shape having a circular cross section. The shape of the suspended load 9 is not limited to the shape shown in FIG. 2 and the like, and any shape may be used as long as it can be lifted by hanging a hanging strap.

DESCRIPTION OF SYMBOLS 1 ... Connection tool, 2 ... Connection tool, 3 ... Connection tool, 4 ... Connection tool, 5 ... Connection tool, 6 ... String, 8 ... Hook, 9 ... Suspended load, 11 ... Stick, 12 ... Hook, 13 ... Hook, 14 ... Groove, 21 ... Bar, 22 ... Hook, 23 ... Hook, 24 ... Hook, 25 ... Screw, 34 ... Ring-shaped body, 44 ... String, 54 ... Bar, 55 ... Screw, 71 ... Suspension string, 72 ... Suspension string 211 ... bars 212 ... bars 541 ... bars 542 ... bars

Claims (6)

With a stick,
A first hook fixed to the rod and hanging a first hanging strap hung on a suspended load;
A suspension string comprising: a second hook that is fixed to the rod at a position isolated from the first hook and that hangs the second suspension string that is hung on the suspended load together with the first suspension string. Coupling tool. The rod has a first portion and a second portion, and the second portion of the rod is provided to be stretchable in the longitudinal direction with respect to the first portion of the rod,
The coupling tool according to claim 1, further comprising: a fixture that fixes and releases the second portion of the rod with respect to the first portion of the rod. The connector according to claim 1 or 2,
A groove, a hook, and an annular body provided in the rod for restricting movement in the longitudinal direction of the connector, which connects the connector with another connector according to claim 1 or 2, A connector comprising at least one. The connector according to claim 1 or 2,
A connecting portion which is a string or a rod provided so as to be extendable in a direction perpendicular to the longitudinal direction of the rod from the rod in order to connect the other coupling device according to claim 1 or 2 to the connector. Coupling tool. The connector according to claim 4,
The connecting portion is a belt-like string,
A coupling tool comprising a hook-and-loop fastener fixed to the surface of the coupling portion. The connector according to claim 4,
The connecting portion is a rod;
The connecting portion has a first portion and a second portion, and the second portion of the connecting portion is provided to be extendable and contractable in the longitudinal direction with respect to the first portion of the connecting portion,
A fixture that fixes and releases the second portion of the connecting portion with respect to the first portion of the connecting portion.

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