JP2007001671A - Clamp for hanging vertically - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a clamp for vertically hanging an object to be held, capable of establishing a vertical hanging of the object upon being removably mounted easily. <P>SOLUTION: The clamp for hanging object vertically is configured so that one part of the object to be held is positioned between two holding parts 19 and 20 at the bottoms of arms 2 and 3 held in the open state from each other while a fastening part 56 of a stopper 15 engages with an engaging pin 16, a shackle 8 slides upward in receiving an energizing force of a shackle spring 13 when the stopper 15 is rotated by an actuator pin 53 and the fastening part 56 of the stopper 15 is disengaged from the pin 16, and that the spacing between the bottoms of the arms 2 and 3 is narrowed to cause the object to be pinched by the two holding parts 19 and 20. In this condition, when the clamp is hung up using a hanging ring 51 of the shackle 8, the weight of the object acts on the clamp body 1 through the arms 2 and 3, and a fastening force corresponding to the object weight is applied to the object from screw caps 21 and 22 of the holding parts 19 and 20. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vertically suspended clamp, and more particularly to a clamp for vertically suspending a wheel or the like used in a railway vehicle.

In general, wheels and the like used in a railway vehicle are incorporated in a shaft that is transported and moved in an upright state and held in a horizontal direction. For this reason, in the case of carrying and moving, a vertical suspension clamp that lifts wheels and the like in an upright state is used.
For example, Patent Document 1 discloses a clamp device for lifting an object to be held such as a shape steel. A part of the object to be held is inserted into the holding space and a pair of tightening bolts are tightened so that the object to be held is clamped by the clamping device. In this state, the object to be held is held via a suspension ring formed in the clamping device. Lift up. Two suspension rings for horizontal suspension and vertical suspension are formed, and the object to be held is lifted upright by using the suspension ring for vertical suspension.

JP 2004-352482 A

However, the clamping device of Patent Document 1 has a problem that it takes time and effort to turn a pair of tightening bolts many times for each attachment / detachment to / from the object to be held.
The present invention has been made to solve such problems, and an object of the present invention is to provide a vertically suspending clamp that can be easily attached / detached to suspend an object to be held vertically.

  The clamp for vertical suspension according to the present invention is arranged so that the clamp body, a pair of arms each having an intermediate portion rotatably attached to the clamp body in a vertical plane, and the lower ends of the pair of arms are opposed to each other. A pair of holding portions provided; a shackle that is slidably mounted in a vertical direction with respect to the clamp body between the pair of arms; a pair of link members that respectively connect the upper end portion and the shackle of the pair of arms; When the shackle is lifted, the distance between the upper end portions of the pair of arms is widened via the pair of link members, and the lower end portion is closed, whereby the object to be held is sandwiched between the pair of holding portions.

Preferably, the shackle is further provided with a shackle spring that biases the pair of arms in a direction in which the lower ends thereof are closed via the pair of link members by biasing the shackle upward with respect to the clamp body.
In addition, if it further comprises an engagement pin fixed to the clamp body and a stopper that is pivotally attached to the shackle and has a locking portion for engaging with the engagement pin, By moving the shackle downward and engaging the engaging portion of the stopper with the engaging pin, the pair of arms can be held in a state where the lower end portions are opened. In this case, if a stopper spring for biasing the stopper toward the engaging pin is further provided, the stopper spring is biased by the biasing force of the stopper spring when the shackle is moved downward to a predetermined position with respect to the clamp body. The locking portion can be configured to automatically engage with the engaging pin.

A pair of handles can be fixed to the upper ends of the pair of arms, and the pair of arms can be rotated with respect to the clamp body by these handles.
More preferably, each of the pair of holding portions includes a screw cap that is rotatable around a straight line connecting the pair of holding portions and tiltable with respect to the straight line.

  According to the present invention, it is possible to easily attach / remove the object to be held and suspend it vertically.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
1 and 2 show the configuration of a vertically suspended clamp according to an embodiment of the present invention. Here, FIG. 1 is a front view, and FIG. 2 is a side view in which one arm is omitted. The vertical suspension clamp is for lifting a wheel used for, for example, a railway vehicle in an upright state, and an intermediate portion of arms 2 and 3 is vertically connected to pins on the left and right ends of the clamp body 1 via pins 4 and 5, respectively. It is mounted so as to be rotatable in the plane. Further, a slide pin 7 is inserted into a long hole 6 formed in the clamp body 1 and a shackle 8 is connected to the slide pin 7, so that the shackle 8 can slide in the vertical direction with respect to the clamp body 1. Is attached.

  One end of a link member 10 is rotatably connected to the upper end portion of the arm 2 via a pin 9, and the other end of the link member 10 is rotatably connected to the slide pin 7. Similarly, one end of a link member 12 is rotatably connected to the upper end portion of the arm 3 via a pin 11, and the other end of the link member 12 is rotatably connected to the slide pin 7. In this way, the upper ends of the arms 2 and 3 and the shackle 8 are connected by the link members 10 and 12, respectively.

The lower end portion of the shackle spring 13 is held at the center of the clamp body 1, and the upper end portion of the shackle spring 13 abuts against the other ends of the link members 10 and 12 via the slider 14, thereby causing the shackle 8. Is biased upward with respect to the clamp body 1.
An upper end portion of a stopper 15 is rotatably connected to the slide pin 7, and an engagement pin 16 is fixed to the clamp body 1. Further, a stopper spring 18 is disposed between the lower end portion of the stopper 15 and the bolt 17 fixed to the clamp body 1. The stopper spring 18 causes the stopper 15 to center around the slide pin 7 in FIG. It is biased to rotate clockwise.

Holding portions 19 and 20 are formed at the lower ends of the arms 2 and 3 so as to face each other, and screw caps 21 and 22 are disposed on the holding portions 19 and 20, respectively. The screw caps 21 and 22 are attached to the surfaces of the screw caps 21 and 22 concentrically with each other so as to be rotatable about a straight line connecting the holding portions 19 and 20 and tiltable with respect to the straight line. Teeth are formed.
Further, handles 23 and 24 are fixed to the upper ends of the arms 2 and 3 so as to protrude upward, respectively.

  As shown in FIG. 3, the clamp body 1 has a pair of plate members 32 arranged in parallel with a space between each other via a spacer member 31. Through holes 33 and 34 for passing 5 and a long hole 6 for passing the slide pin 7 are formed. A cylindrical guide 35 is provided on the spacer member 31 to hold the lower portion of the shackle spring 13.

  As shown in FIG. 4, the arm 2 is fixed to the plate-shaped arm main body 36, a pair of side plates 37 fixed to the left and right sides of the upper half of the arm main body 36, and the back surface of the arm main body 36. It has a pair of left and right vertical plates 38. A through hole 39 for passing the pin 4 and a through hole 40 for passing the pin 9 are formed in both side plates 37, respectively. A handle 23 is stretched between the upper ends of the pair of side plates 37. Furthermore, a through hole 41 is opened at the lower end of the arm body 36, and a thread is formed on the inner peripheral surface of the through hole 41. Further, each vertical plate 38 is formed with a screw hole 42 communicating with the through hole 41.

  A receiving seat 43 of the screw cap 21 as shown in FIG. 5 is screwed into the through hole 41 of the arm body 36. A rectangular protruding portion 43a is formed at the rear portion of the receiving seat 43, and the receiving seat 43 in the through hole 41 is rotated by gripping the protruding portion 43a, thereby rotating the receiving seat 43 in the front-rear direction. It is comprised so that the position of can be adjusted. The receiving seat 43 is fixed by screwing a screw (not shown) into the screw hole 42 formed in the vertical plate 38 and tightening the outer peripheral portion of the receiving seat 43 with the tip of the screw.

As shown in FIG. 6, the link member 10 is formed with a through hole 44 for passing the slide pin 7 and a through hole 45 for passing the pin 9. The upper end of the arm 2 is connected to the slide pin 7 by this one link member 10.
As shown in FIG. 7, the link member 12 is formed with a through hole 46 for passing the slide pin 7 and a through hole 47 for passing the pin 11. As shown in FIG. 2, link members 12 are arranged on both sides of the link member 10, and the upper end portion of the arm 3 is connected to the slide pin 7 via the two link members 12.

  As shown in FIG. 8, the shackle 8 has a pair of plate members 48 arranged parallel to each other at a distance from each other, and through holes 49 for passing the slide pins 7 through the both plate members 48, respectively. Is formed. A single plate member 50 extending upward from the plate members 48 is fixed between the upper portions of the pair of plate members 48, and a suspension ring 51 for lifting the entire vertical suspension clamp is formed in the plate member 50 so as to have an opening. ing.

  As shown in FIG. 9, the stopper 15 includes an elongated plate member 52, and an operation pin 53 that protrudes from the lower end portion of the plate member 52 in a direction perpendicular to the plate member 52. An annular groove portion 54 is formed at the root portion of the operating pin 53, and one end of the stopper spring 18 is connected to the groove portion 54. A through hole 55 for passing the slide pin 7 is formed in the upper end portion of the plate member 52, and a hook for engaging with the engagement pin 16 fixed to the clamp body 1 in the middle portion of the plate member 52. A shaped locking portion 56 is formed.

  As shown in FIG. 10, the slider 14 has a cylindrical shape with an upper portion closed by a lid 57. The cylindrical portion has an inner diameter such that the guide 35 erected on the clamp body 1 is loosely inserted, and the upper end portion of the shackle spring 13 is inserted into the cylindrical portion and comes into contact with the lower surface of the lid body 57. .

  Next, the operation of the vertically hanging clamp according to this embodiment will be described. As shown in FIG. 1, in a state where the locking portion 56 of the stopper 15 is not engaged with the engaging pin 16, the shackle 8 is urged upward with respect to the clamp body 1 by the shackle spring 13. The distance between the upper ends of the pair of arms 2 and 3 is increased via the pair of link members 10 and 12. Here, when lifting the handles 23 and 24 fixed to the upper ends of the arms 2 and 3, respectively, while pushing them inward, the interval between the upper ends of the arms 2 and 3 is reduced and the interval between the lower ends is increased. The slide pin 7 is pressed downward via the link members 10 and 12, and the shackle 8 slides downward with respect to the clamp body 1 against the biasing force of the shackle spring 13.

  As the shackle 8 slides, the stopper 15 attached to the slide pin 7 also slides downward. As shown in FIG. 11, the engaging pin 16 is secured to the clamp body 1 by the locking portion 56 of the stopper 15. When positioned further downward, the stopper 15 rotates clockwise around the slide pin 7 by the biasing force of the stopper spring 18, and the locking portion 56 is automatically engaged with the engagement pin 16. Thereby, even if the pressing force applied to the handles 23 and 24 is released, the arms 2 and 3 are held in a state where the lower ends thereof are opened from each other.

  With the arms 2 and 3 held in this manner, the vertical suspension clamp is moved onto the object to be held such as wheels used in the railway vehicle, and the holding portions 19 and 19 at the lower ends of the arms 2 and 3 are moved. A part of the object to be held is positioned between 20. Here, when the operating pin 53 of the stopper 15 and the head of the pin 5 are grasped and grasped to rotate the stopper 15 so that the operating pin 53 approaches the pin 5, the engaging portion 56 of the stopper 15 is engaged with the engaging pin. 16 is released and the holding state of the arms 2 and 3 is released. As a result, as shown in FIG. 1, the shackle 8 receives an urging force of the shackle spring 13 and slides upward, and the interval between the lower ends of the arms 2 and 3 is narrowed. Then, an object to be held is held between the holding portions 19 and 20.

In this state, the object to be held is suspended vertically by lifting the vertical suspension clamp using the suspension ring 51 of the shackle 8.
At this time, the screw caps 21 and 22 attached to the holding portions 19 and 20 of the arms 2 and 3 are rotatable around a straight line connecting the holding portions 19 and 20 to each other and tiltable with respect to the straight line. Therefore, the surfaces of the screw caps 21 and 22 on which concentric teeth are formed abut against the surface of the object to be held in parallel, and can be lifted without damaging the surface of the object to be held.

  Further, when the object to be held is lifted, the weight of the object to be held is applied to the clamp main body 1 via the arms 2 and 3 and the pins 4 and 5. A pressing force corresponding to the weight of the object to be held is applied to the shackle 8 in the same direction as the urging force of the spring 13. Thereby, the fastening force corresponding to the weight of the object to be held acts on the object to be held from the screw caps 21 and 22 attached to the lower ends of the arms 2 and 3.

  In this way, when the object to be held is transported and placed at the target location, when removing the vertical suspension clamp from the object to be held, the springs for shackles are pushed by pushing the handles 23 and 24 inward while being lifted. The shackle 8 is slid downward against the urging force of 13. As a result, the space between the lower end portions of the arms 2 and 3 is widened, the screw caps 21 and 22 are separated from the surface of the object to be held, and the locking portion 56 of the stopper 15 is positioned below the engaging pin 16. When the shackle 8 is lowered, the stopper 15 is rotated by the biasing force of the stopper spring 18, the locking portion 56 is automatically engaged with the engagement pin 16, and the lower ends of the arms 2 and 3 are opened from each other. Retained. In this state, it can be removed from the object to be held by lifting the vertical suspension clamp.

  The front and rear direction of the receiving seat 43 with respect to the arm main body 36 is obtained by gripping the protrusion 43 a of each receiving seat 43 holding the screw caps 21 and 22 and rotating the receiving seat 43 within the through hole 41 of the arm main body 36. The position of the screw caps 21 and 22 can be adjusted accordingly.

It is a front view which shows the clamp for vertical suspensions concerning embodiment of this invention. It is a side view which shows the clamp for vertical suspensions concerning embodiment. A clamp main body is shown, (a) is a front view, (b) is a side view, (c) is a top view. The arm is shown, (a) is a front view, (b) is a side view. The receiving seat of a screw cap is shown, (a) is a side view, (b) is a rear view. A link member is shown, (a) is a front view, (b) is a side view. The other link member is shown, (a) is a front view, (b) is a side view. A shackle is shown, (a) is a front view, (b) is a side view. A stopper is shown, (a) is a front view, (b) is a side view. The slider is shown, (a) is a front view and (b) is a plan view. It is a front view which shows the clamp for vertical suspension in which the arm was in the holding | maintenance state with the stopper.

Explanation of symbols

  1 Clamp body, 2, 3 arm, 4, 5, 9, 11 pin, 6 long hole, 7 slide pin, 8 shackle, 10, 12 link member, 13 shackle spring, 14 slider, 15 stopper, 16 engagement pin , 17 bolt, 18 stopper spring, 19, 20 holding part, 21, 22 screw cap, 23, 24 handle, 31 spacer member, 32, 48, 50, 52 plate member, 33, 34, 39, 40, 41, 44, 45, 46, 47, 49, 55 Through hole, 35 guide, 36 Arm body, 37 Side plate, 38 Vertical plate, 42 Screw hole, 43 Receiving seat, 43a Protruding part, 51 Suspension ring, 53 Actuation pin, 54 Groove part 56 Locking part, 57 Cover.

Claims (6)

A clamp body;
A pair of arms each having an intermediate portion rotatably attached to the clamp body in a vertical plane;
A pair of holding portions disposed so as to face each other at the lower end portions of the pair of arms;
A shackle that is slidably attached to the clamp body in a vertical direction between the pair of arms;
A pair of link members for connecting the upper end portions of the pair of arms and the shackle, respectively, and when the shackle is lifted, the interval between the upper end portions of the pair of arms is widened via the pair of link members. A vertically suspended clamp, wherein the object to be held is sandwiched between the pair of holding parts by closing the part.   2. The shackle spring according to claim 1, further comprising biasing the shackle upward with respect to the clamp body to bias the pair of arms in a direction in which a lower end portion is closed via the pair of link members. Clamp for vertical suspension. An engagement pin fixed to the clamp body;
And a stopper that is rotatably attached to the shackle and has a locking portion for engaging with the engaging pin, and the shackle is moved downward relative to the clamp body to move the shackle. The vertical suspension clamp according to claim 1 or 2, wherein the engagement portion is engaged with the engagement pin to hold the pair of arms in a state where a lower end portion is opened. A stopper spring for biasing the stopper toward the engagement pin;
The longitudinal direction according to claim 3, wherein when the shackle is moved downward to a predetermined position with respect to the clamp body, the stopper locking portion is automatically engaged with the engagement pin by the biasing force of the stopper spring. Clamp for hanging.   The vertical suspension device according to any one of claims 1 to 4, further comprising a pair of handles fixed to upper ends of the pair of arms and for rotating the pair of arms with respect to the clamp body. Clamp.   The said pair of holding | maintenance part has a screw cap attached so that it could rotate around the straight line which connects these pair of holding | maintenance parts, respectively, and was tiltable with respect to this straight line. Clamp for vertical suspension.

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