JP4832417B2 - Hanging tool - Google Patents

Description

  The present invention relates to a hanging tool configured to be able to be hung by sandwiching a suspended object.

For example, as a suspending tool for suspending a member that does not have a projection or the like that can be used for suspending, such as a plate material (suspended object), suspending by sandwiching both surfaces of the suspended object. A lowering tool (for example, a suspension clamp disclosed in JP-A-7-277668) is known. This type of hanging tool is configured to include a pair of arms that intersect with each other at the center (crossed in an X shape) and can rotate about an axis inserted through the center. When using this hanging tool to suspend the object to be suspended, the tips of both arms are opened and the tips are brought close to a predetermined part of the object to be suspended and connected to the other ends of both arms in that state. Pull the sling etc. upward. At this time, the tip portions of both arms are narrowed and come into contact with a predetermined part of the suspended object. Next, when the sling is lifted further upward, a tension according to the weight of the hanging tool is applied to the sling, and the distal ends of both arms are attached to the object to be suspended by the pressing force corresponding to the horizontal component of the tension. A predetermined part is pressed and clamped. As a result, the downward movement of the object to be suspended is restricted by the frictional force according to the pressing force, and the object to be suspended is suspended.
Japanese Patent Laid-Open No. 7-277668 (page 3, FIG. 1)

  However, the conventional hanging tool has the following problems. That is, in this type of hanging tool, the distal ends of both arms move a predetermined part of the object to be hung with a pressing force corresponding to the horizontal component of the tension applied to the sling, that is, a pressing force corresponding to the weight of the hanging tool. The object to be suspended is suspended by pressing and clamping. However, in this hanging tool, when the weight of the hanging tool is small, the pressing force that presses the object to be suspended is insufficient and the frictional force according to the pressing force is insufficient, and the object to be suspended falls off the arm and falls. There is a risk. Also, with this hanging tool, when the hanging tool is tilted or the object to be hung is tilted by colliding with an object, the frictional force is momentarily reduced by momentarily reducing the pressing force. There is also a risk that the suspended object will fall off the arm. Therefore, this hanging tool has a problem that there is a risk that an operator may be exposed to danger when the suspended object falls and the suspended suspended object may be damaged.

  The present invention has been made in view of such problems, and a main object of the present invention is to provide a hanging tool that can reliably suspend a suspended object.

  In order to achieve the above object, the hanging tool according to claim 1 is arranged on the rod member so as to be slidable along the length direction of the rod member and can regulate the slide at an arbitrary position on the rod member. The first holding portion is configured to be connected to one end portion of the rod member, and the distal end portion thereof is configured to be rotatable in a direction of coming into contact with and separating from the first holding portion. A clamping mechanism having a second clamping part for clamping the object to be suspended together with the first clamping part when the tip part is rotated in the first direction adjacent thereto, and parallel or substantially to the rod member; A handle portion attached to the clamping mechanism with a parallel grip, and configured to be able to suspend the suspension target object clamped by the clamping mechanism, wherein the second clamping portion is A pair of levers, a pivoting part connected to one end of both levers and pivoted in the first direction in response to a gripping operation on both levers; A lock member that is coupled to both levers and is pivoted in the first direction to lock the pivot unit in a non-rotatable state; and a lock release lever that releases the non-rotatable state by the lock member; It is configured with.

  According to a second aspect of the present invention, in the hanging tool according to the first aspect, the second holding portion includes a lever fixing member that regulates the release operation of the rotation disabled state by the lock release lever. It is configured.

  In the hanging tool according to claim 1, the rotating unit that rotates in the first direction according to the gripping operation with respect to the pair of levers and the rotating unit that is rotated in the first direction cannot be rotated. A clamping mechanism is configured so that the object to be suspended can be clamped by the second clamping part and the first clamping part provided with a lock member that locks in a state. For this reason, a conventional hanging tool that presses and holds the object to be suspended with a pressing force according to the tension applied to the sling when lifting the sling of the hanging tool, that is, a pressing force according to the weight of the hanging tool. Unlike the above, by performing the clamping operation on both levers of the second clamping unit, it is possible to maintain the state in which the suspended object is securely clamped regardless of the weight of the hanging tool. Moreover, in the conventional hanging tool, a suspended object cannot be clamped in a state where no tension is applied to the sling or the like of the hanging tool. In other words, since the conventional hanging tool cannot be locked in a state where the suspended object is sandwiched, for example, when the suspended object hits an object and the tension applied to the sling is insufficient, the suspended object is not There is a risk of falling. On the other hand, in this hanging tool, the rotating part can be locked in a non-rotatable state, that is, the suspended object can be securely locked in a state of being clamped. Even if the object to be lowered hits an object, the state in which the object to be suspended is securely held can be maintained. Therefore, according to this hanging tool, as a result of being able to reliably suspend the object to be suspended, the operator is exposed to danger by dropping the object to be suspended, or the suspended object to be dropped is damaged. Can be reliably prevented.

  Further, according to the hanging tool of the second aspect, since the second holding portion is configured by including the lever fixing member that restricts the releasing operation of the unlocking lever, for example, the hanging object body can be suspended and lowered. While the object is being lifted from a high place to a high place, an object comes into contact with the unlocking lever, and the unrotatable state of the turning portion in the second clamping portion is released against the will of the operator, and the object to be suspended Can be reliably prevented, so that the object to be suspended can be more reliably suspended.

  Hereinafter, the best mode of a cutting tool according to the present invention will be described with reference to the accompanying drawings.

  First, the configuration of the hanging tool 1 will be described. A hanging tool 1 shown in FIG. 1 is an example of a hanging tool according to the present invention, and includes a clamping mechanism 2 and a handle portion 3 as shown in the figure. The clamping mechanism 2 includes a rod member 11, a first clamping unit 12, and a second clamping unit 13. The rod member 11 has a substantially rectangular cross section and is formed in a long rod shape. In addition, the second clamping portion 13 is connected to one end portion (the right end portion in the figure) of the rod member 11.

  As shown in FIG. 1, the first sandwiching portion 12 is formed in a generally L shape in plan view, and is formed with an insertion hole 21 through which the rod member 11 can be inserted, and a rod is inserted into the insertion hole 21. By inserting the member 11, the rod member 11 is slidably disposed along the length direction of the rod member 11. The first clamping part 12 is formed with a screw hole 22 into which the fixing screw 23 is screwed. In this case, the slide of the first clamping unit 12 is regulated at an arbitrary position in the length direction of the rod member 11 by screwing the fixing screw 23 into the screw hole 22. Further, the first clamping unit 12 clamps the object to be suspended (for example, the plate member 100 shown in FIG. 5) between the contact surface 32 d of the rotating unit 32 in the second sandwiching unit 13 described later and the contact surface 24. To do.

  As shown in FIG. 2, the second clamping unit 13 includes a first lever 31, a rotation unit 32, a second lever 33, a link 34, an adjustment screw 35, a lock release lever 36, and a latch (latch) 37. As will be described in detail later, by performing an operation of grasping and tightening the proximal end portion 31a of the first lever 31 and the proximal end portion 33a of the second lever 33 (gripping operation with respect to both the levers 31 and 33), In addition, it is configured to be able to hold the suspended object. The first lever 31 corresponds to one of a pair of levers in the present invention, and is connected to one end of the rod member 11 (the right end in FIG. 1 and the lower end in FIG. 2). As shown in FIG. 2, a screw hole 31 d for screwing the adjustment screw 35 is formed in the base end portion 31 a of the first lever 31.

  The rotating portion 32 corresponds to the distal end portion of the second clamping portion in the present invention, and the base end portion 32a is connected to the distal end portion 33b of the second lever 33 via the connecting pin 42 as shown in FIG. At the same time, the central portion 32c is connected to the distal end portion 31b of the first lever 31 via the connecting pin 41, and in the first direction (close to the first sandwiching portion 12 according to the gripping operation with respect to both the levers 31 and 33). It is rotated around the connecting pin 41 in the direction of arrow A shown in FIG. In addition, the rotating portion 32 has a base end portion connected by a coil spring 38 having one end connected between the base end portion 32a and the center portion 32c and the other end connected to the center portion 31c of the first lever 31. The 32a side is pulled toward the first lever 31 side.

  The second lever 33 corresponds to the other of the pair of levers in the present invention. As described above, the proximal end portion 32a of the rotating portion 32 is connected to the distal end portion 33b via the connecting pin 42. The link 34 corresponds to the lock member in the present invention, and the base end portion 34a (one of both end portions in the present invention) is slidable along the length direction without detaching from the inner portion in the inner portion of the first lever 31. In addition to being connected to the first lever 31, the tip end portion 34 b (the other of both end portions in the present invention) is connected to the central portion 33 c of the second lever 33 via a connecting pin 43. Further, a convex portion 34 d that protrudes toward the second lever 33 side is formed at the central portion 34 c of the link 34. In this case, as will be described in detail later, the link 34 has a function of locking the rotating portion 32 rotated in the direction of the arrow A by the gripping operation with respect to both the levers 31 and 33 to a non-rotatable state. ing.

  Here, in the 2nd clamping part 13, a toggle mechanism is comprised by the 1st lever 31, the rotation part 32, the 2nd lever 33, the link 34, and the lock release lever 36, and the front-end | tip part 32b of the rotation part 32 is 1st. A state (hereinafter, this position is also referred to as “open state”) that is located at a position away from the sandwiching portion 12 (the position of the distal end portion 32b shown in FIG. 2 and hereinafter this position is also referred to as “open position”). , And the position where the distal end portion 32b is close to the first sandwiching portion 12 (the position of the distal end portion 32b shown in FIG. 3, which is also referred to as “the sandwiching position” hereinafter). It is possible to switch between two states: a state locked in a non-rotatable state (hereinafter, this state is also referred to as a “locked state”).

  Specifically, as shown in FIG. 2, when the base end portion 33 a of the second lever 33 is separated from the base end portion 31 a of the first lever 31, The proximal end portion 32a of the portion 32 is close to the first lever 31, whereby the distal end portion 32b of the rotating portion 32 is located at the open position. In this case, since the proximal end portion 32a side of the rotating portion 32 is pulled toward the first lever 31 side by the coil spring 38, the open state in which the distal end portion 32b of the rotating portion 32 is located at the open position is maintained. The

  On the other hand, when a gripping operation is performed on the first lever 31 and the second lever 33, as shown in FIG. 3, the distal end portion 33 b of the second lever 33 and the proximal end portion 32 a of the rotating portion 32 are in the first lever 31. As a result, the leading end 32b of the pivoting portion 32 pivots about the connecting pin 41 in the direction of arrow A, so that the leading end 32b is positioned at the clamping position. In this state, as shown in the figure, the base end portion 32a (connection pin 42) of the rotating portion 32 is connected to the center line X of the link 34 (the straight line connecting the base end portion 34a and the front end portion 34b and its extension line). ) Is located above. That is, the base end portion 32 a and the link 34 of the rotating portion 32 are located on the center line X. For this reason, for example, even if a force is applied to the rotating portion 32 in the direction in which the distal end portion 32b is separated from the first clamping portion 12 (the direction of the arrow B shown in the figure), the force is applied. The link where the base end part 32a of the rotating part 32 presses the second lever 33 in the direction along the center line X (direction of the arrow C shown in the figure) is located on the center line X. As a result of reliably receiving 34, the rotation of the rotation unit 32 is reliably regulated and the rotation unit 32 is locked in a non-rotatable state.

  The adjustment screw 35 is a screw for adjusting the amount of rotation of the rotation unit 32 by moving the distal end portion 34b of the link 34, and as shown in FIGS. 2 and 3, the base end portion of the first lever 31. The screw hole 31d formed in 31a can be screwed. In this case, by increasing or decreasing the screwing amount of the adjustment screw 35 with respect to the first lever 31, the position of the base end portion 34 a of the link 34 in the length direction of the first lever 31 is changed. The amount of movement is adjusted.

  The lock release lever 36 corresponds to the release lever in the present invention, and as shown in FIGS. 2 and 3, one end portion between the base end portion 31 a of the first lever 31 and the base end portion 33 a of the second lever 33. The intermediate portion is connected via a connecting pin 44 to a predetermined position between the connecting position of the link 34 in the second lever 33 and the base end portion 33 a of the second lever 33 so that 36 a is positioned. In this case, when the one end 36a is moved to the second lever 33 side in the locked state of the second holding portion 13 (see FIG. 2), the other end 36b is connected to the link 34 (specifically). Specifically, by pressing the convex portion 34d) of the link 34, the distal end portion 33b of the second lever 33 and the proximal end portion 32a of the rotating portion 32 are moved to the first lever 31 side (see FIG. 3). The locked state of the second clamping unit 13 is released.

  The latch 37 corresponds to the lever fixing member in the present invention, and is formed in a rectangular frame shape in plan view as shown in FIG. The latch 37 is rotatably disposed at the base end portion 31 a of the first lever 31. In this case, the latch 37 performs a gripping operation with respect to the first lever 31 and the second lever 33, and as shown in FIG. 3, the base end portion 33a of the second lever 33 and the one end portion 36a of the lock release lever 36 are moved. As shown in FIG. 4, in the state of being close to the first lever 31 (the above-described locked state of the second holding portion 13), it is hooked on one end portion 36 a of the lock release lever 36, thereby The release operation (movement of the one end portion 36a toward the second lever 33) is restricted. That is, in the state where the latch 37 is latched on the lock release lever 36, the release operation of the lock release lever 36 is restricted, and the situation where the lock state of the second clamping unit 13 is released unexpectedly is reliably prevented. The

  As shown in FIG. 1, the handle portion 3 includes a pair of support portions 51 and 51 and a grip portion 52 (a grip in the present invention). One of the support portions 51 and 51 is fixed so as to form a right angle (or substantially a right angle) with respect to the rod member 11 at the tip end portion (the left end portion in the figure) of the rod member 11. The other of the support portions 51 and 51 is fixed so as to form a right angle (or substantially a right angle) with respect to the rod member 11 at a position on the second clamping portion 13 side of the rod member 11. The grip part 52 has its end fixed to the tip of each support part 51, 51. That is, the grip part 52 is attached to the rod member 11 (the clamping mechanism 2) by the support part 51 so as to be parallel (or substantially parallel) to the rod member 11.

  Next, an example of how to use the hanging tool 1 will be described with reference to the drawings.

  For example, in a construction site or a material warehouse, when an operator hangs a plate material 100 as a suspended object (ie, manually) and pulls it up from a low place to a high place, the thickness of the plate material 100 is first set. In addition, the length between the first clamping unit 12 and the second clamping unit 13 is adjusted. Specifically, the fixing screw 23 of the first clamping unit 12 is loosened, the first clamping unit 12 is slid, and the fixing screw 23 is screwed at a predetermined position. Thereby, the 1st clamping part 12 is fixed to a non-movable state with respect to the rod member 11. FIG. Next, the rotation amount of the rotation unit 32 is adjusted by increasing or decreasing the screwing amount of the adjustment screw 35. In this case, in the locked state of the second clamping unit 13, both the surfaces of the plate member 100 are sufficiently pressed by the contact surface 24 of the first clamping unit 12 and the contact surface 32 d of the rotating unit 32 of the second clamping unit 13. To adjust the amount of rotation to be pressed.

  Subsequently, the plate material 100 is clamped by the hanging tool 1. Specifically, as shown in FIG. 5, the second holding part 13 is opened, the grip part 52 of the handle part 3 is gripped, the hanging tool 1 is brought close to the plate member 100, and the first holding part 12 and the first holding part 12 2 The clamping part 13 is each located in the vicinity of both surfaces of the board | plate material 100. FIG. Next, as shown in FIG. 6, a gripping operation is performed on the first lever 31 and the second lever 33 of the second clamping unit 13. At this time, as described above, the rotation part 32 of the second clamping part 13 is rotated in the direction of the arrow A shown in FIGS. 2 and 3, and the tip part 32b of the rotation part 32 is located at the clamping position. As a result, both surfaces of the plate member 100 are pressed with a sufficiently strong pressing force by the contact surface 24 of the first sandwiching portion 12 and the contact surface 32d of the rotating portion 32, and both the sandwiching portions 12 and 13 (the sandwiching mechanism 2). The plate material 100 is securely clamped. At this time, as described above, the second clamping unit 13 is in a locked state.

  Subsequently, as shown in FIG. 7, the latch 37 is hooked on one end 36 a of the lock release lever 36. Thereby, the release operation of the lock release lever 36 (movement of the lock release lever 36 to the second lever 33 side) is restricted.

  Next, as shown in FIG. 8, the grip part 52 of the handle part 3 is grasped, and the plate member 100 held by the holding mechanism 2 is pulled up from a low place to a high place. In this case, in the hanging tool 1, as described above, both surfaces of the plate member 100 are sufficiently strong due to the contact surface 24 of the first sandwiching portion 12 and the contact surface 32 d of the rotating portion 32 in the second sandwiching portion 13. The plate member 100 is securely clamped by the sandwiching portions 12 and 13 by being pressed by the pressing force, and the second sandwiching portion 13 is maintained in the locked state in this state. For this reason, unlike the conventional hanging tool, regardless of the weight of the hanging tool 1, the state in which the plate material 100 is securely clamped is maintained. Further, even when the plate member 100 held by the holding mechanism 2 hits an object and tilts, the state in which the plate member 100 is securely held is maintained. As a result, it is possible to reliably prevent the suspension target body from being detached from the suspension tool 1. Further, in the hanging tool 1, as described above, the release operation of the lock release lever 36 is restricted by latching the latch 37 on the lock release lever 36. For this reason, for example, while the plate member 100 is suspended and pulled up from a low place to a high place, an object comes into contact with the lock release lever 36 and the locked state of the second clamping portion 13 is contrary to the operator's will. It is cancelled | released and the situation where the board | plate material 100 falls is reliably prevented.

  Subsequently, the hanging tool 1 is removed from the plate material 100 assembled by pulling up to a predetermined position. Specifically, as shown in FIG. 9, the latch 37 latched on the one end 36 a of the lock release lever 36 is removed. As a result, the lock release lever 36 can be released. Next, as shown in FIG. 10, the one end 36 a of the lock release lever 36 is moved to the second lever 33 side. At this time, the convex portion 34d of the link 34 is pressed by the other end portion 36b of the unlocking lever 36, and the distal end portion 33b of the second lever 33 and the proximal end portion 32a of the rotating portion 32 are moved to the first lever 31 side. Moved. Further, with this movement, the distal end portion 32b of the rotating portion 32 rotates in the direction opposite to the direction of the arrow A shown in FIG. 3, and the distal end portion 32b of the rotating portion 32 is located at the open position. As a result, the locked state of the second clamping unit 13 is released, the second clamping unit 13 is released, and the clamping of the plate material 100 by the clamping mechanism 2 is released. As a result, the hanging tool 1 is removed from the plate material 100. . Subsequently, when the next plate member 100 is assembled to a predetermined position, the above-described procedure is repeated.

  As described above, the hanging tool 1 is rotated in the first direction according to the gripping operation with respect to the first lever 31 and the second lever 33, and is rotated in the first direction. The holding mechanism 2 is configured to hold the object to be suspended by the second holding unit 13 and the first holding unit 12 provided with the link 34 that locks the rotating unit 32 in a non-rotatable state. For this reason, a conventional hanging tool that presses and holds the object to be suspended with a pressing force according to the tension applied to the sling when lifting the sling of the hanging tool, that is, a pressing force according to the weight of the hanging tool. Unlike the above, by performing the clamping operation on the two levers 31 and 33 of the second clamping unit 13, it is possible to maintain the state in which the object to be suspended is securely clamped regardless of the weight of the hanging tool 1. it can. Moreover, in the conventional hanging tool, a suspended object cannot be clamped in a state where no tension is applied to the sling or the like of the hanging tool. In other words, since the conventional hanging tool cannot be locked in a state where the suspended object is sandwiched, for example, when the suspended object hits an object and the tension applied to the sling is insufficient, the suspended object is not There is a risk of falling. On the other hand, in this hanging tool, the rotating portion 32 can be locked in a non-rotatable state, i.e., can be locked in a state in which the object to be suspended is securely clamped. Even if the suspension target object hits an object, the state in which the suspension target object is securely held can be maintained. Therefore, according to this hanging tool 1, as a result of being able to reliably suspend the object to be suspended, the operator is exposed to danger by dropping the object to be suspended, or the suspended object to be dropped is The situation where it breaks can be prevented reliably.

  Moreover, according to this hanging tool 1, since the 2nd clamping part 13 was comprised including the latch 37 which regulates releasing operation | movement of the lock release lever 36, for example, a suspension target object is suspended from a low place. While the object is being lifted to a high place, an object contacts the unlocking lever 36, and the locked state of the second holding part 13 is released against the will of the operator, so that the suspended object can be reliably dropped. Therefore, it is possible to suspend the object to be suspended more reliably.

  In addition, this invention is not limited to said structure. For example, although an example in which the handle portion 3 is configured by the pair of support portions 51 and 51 and the grip portion 52 has been described above, the handle portion 203 illustrated in FIG. 11 may be employed instead of the handle portion 3. In this case, the handle portion 203 is formed by bending both end portions of one rod-like member so that the central portion (corresponding to the grip portion in the present invention) is parallel or substantially parallel to the rod member 11. Thus, both ends are fixed to the rod member 11. Moreover, the handle | steering-wheel part 303 shown in FIG. 12 is also employable. In this case, the handle portion 303 is formed by bending one end of one rod-like member so that the central portion (corresponding to the grip portion in the present invention) is parallel or substantially parallel to the rod member 11. Thus, the bent one end is fixed to the rod member 11, and the other unfolded other end is fixed to the first lever 31.

  Moreover, although the example which employ | adopted the latch 37 as a lever fixing member formed in the frame shape of the planar view rectangle was mentioned above, the lever fixing member in this invention is not limited to this structure. For example, an engagement portion such as a hook is provided on one of the first lever 31 and the lock release lever 36, and a ring or the like is engaged with the other of the first lever 31 and the lock release lever 36. A configuration in which a joint portion is provided can also be employed. Moreover, although it described above about the structural example which regulates the slide of the 1st clamping part 12 using the fixing screw 23, the structure which regulates a slide is not limited to this, Arbitrary structures can be employ | adopted.

1 is a plan view of a hanging tool 1. FIG. It is a top view of the 2nd clamping part 13 of an open state. It is a top view of the 2nd clamping part 13 of a locked state. 4 is an explanatory diagram for explaining a configuration of a latch 37. FIG. It is the 1st explanatory view for explaining how to use hanging tool. It is the 2nd explanatory view for explaining how to use hanging tool 1. It is the 3rd explanatory view for explaining how to use hanging tool 1. It is the 4th explanatory view for explaining how to use hanging tool 1. It is the 5th explanatory view for explaining how to use hanging tool 1. It is the 6th explanatory view for explaining how to use hanging tool 1. FIG. 6 is a plan view of a handle portion 203. It is a top view of the handle part 303. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hanging tool 2 Clamping mechanism 3,203,303 Handle part 11 Rod member 12 1st clamping part 13 2nd clamping part 23 Fixing screw 31 1st lever 32 Turning part 32b Tip part 33 2nd lever 34 Link 36 Unlocking Lever 37 Latch 51 Support part 52 Grip part 100 Plate material

Claims (2)

A first clamping portion disposed on the rod member so as to be slidable along the length direction of the rod member and configured to be able to restrict sliding at an arbitrary position in the rod member; and one end portion of the rod member The tip portion is configured to be connected and turnable in a direction in which the tip portion comes into contact with and separates from the first holding portion, and the tip portion is turned in a first direction close to the first holding portion. A holding mechanism having a second holding part for holding the object to be suspended together with the first holding part, and a handle attached to the holding mechanism with a grip parallel or substantially parallel to the rod member And is configured to be able to suspend the object to be suspended that is sandwiched by the sandwiching mechanism,
The second clamping portion is connected to a pair of levers and one end portions of the two levers, and is rotated as the tip portion that is rotated in the first direction according to a gripping operation with respect to the two levers. A locking member that locks the pivoting portion, which is pivoted in the first direction with both ends connected to the levers, respectively, and the non-rotating state by the locking member A hanging tool configured to include an unlocking lever for unlocking.   2. The hanging tool according to claim 1, wherein the second holding portion includes a lever fixing member that restricts the release operation of the rotation disabled state by the lock release lever.

Images