JP2008068958A - Hoisting accessory - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hoisting accessory having a simple structure to improve ease of use. <P>SOLUTION: This hoisting accessory 10 used to suspend an object P to be suspended is provided with a gripping part 12 and a pressing part 14. The gripping part is provided with a surrounding part 16 for surrounding the outer periphery of the object P between one end and the other end facing each other across first distance L1 around the outer periphery and a first pressed part 18a and a second pressed part 18b provided at one end and the other end, respectively. The pressing part is provided with a pair of first pressing action part 36a and second pressing action part 36b for sandwiching the pair of pressed parts from an outer side of an interval between the pressed parts and a hoisting part 34 being a fulcrum when suspending the object P. The pressing action parts press the pressed parts in the direction for shortening the first distance by receiving self-weight of the object P in a suspended condition. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a hanging tool used when a suspended object is suspended.

  When assembling a braided scaffold using a scaffold pipe at a construction site or the like, it is necessary to lift the scaffold pipe at a high place. For this lifting, a rope is usually used. In other words, by moving the rope tied to the scaffolding pipe, the scaffolding pipe was transported to the high place one by one.

  However, since the scaffold pipe is a pipe having a circular cross section and has a smooth side surface, it is slippery and may fall off the rope knot.

  In order to solve this problem, in the first prior art, a box-type pipe suspension having a guide hole through which a scaffold pipe is inserted has been proposed (for example, see Patent Document 1). In the first prior art, a slip stopper that presses the outer peripheral surface of the scaffold pipe by the force of a spring is provided inside the pipe suspension. When the scaffold pipe is lifted, the slip stopper presses the outer peripheral surface of the scaffold pipe against the wall surface of the guide hole, thereby preventing the scaffold pipe from falling.

Further, as a second conventional technique, a band-shaped hanging metal fitting that is tightened using a worm rack mechanism has been proposed (for example, see Patent Document 2). In the second prior art, a worm gear is provided outside the metal band, and a rack that meshes with the worm gear is formed on the peripheral surface of the band. By rotating the worm gear with a screwdriver or the like, the band is reduced in diameter and the scaffold pipe inserted into the band is tightened.
Japanese Patent Laid-Open No. 10-265168 JP 2001-63957 A

  However, in the first prior art, it is necessary to use a spring for the pipe suspension, and there is a problem that the structure becomes complicated.

  In addition, the second prior art has a problem in that it is not easy to use because the worm gear needs to be rotated every time the scaffolding pipe is fixed to the suspension bracket.

  The present invention has been made in view of such problems. Therefore, an object of the present invention is to provide a suspended object for a suspended object that has a simple structure and is easy to use.

  In order to achieve this object, the hanger of the present invention includes a gripping portion and a pressing portion, and is used when a suspended object is hung.

  The gripping portion includes a surrounding portion that surrounds the outer periphery between one end and the other end facing each other at a first distance around the outer periphery of the suspended object, and a pressed portion that is provided at each of the one end and the other end. With.

  A press part is provided with a pair of press action part which pinches | interposes a pair of to-be-pressed part from the outer side rather than the space | interval between to-be-pressed parts, and the suspension upper part used as the fulcrum in the case of suspension of a suspended object.

  Then, receiving the weight of the suspended object in the suspended state, the pressing action part presses the pressed part in the direction in which the first distance is shortened.

  In this suspension tool, the weight of the suspended object suspended from the suspended upper part is converted into a force that shortens the first distance by the pressing action part, and acts on the pair of pressed parts. Thereby, the 1st distance between a pair of pressed parts shortens. As a result, the go portion firmly tightens the outer periphery of the suspended object. Therefore, the suspended object is firmly held by the holding part.

  In the above-described hanger, the pressed portion includes the first engaging portion, the pressing action portion includes the second engaging portion, and the first and second engagements are performed in a state where the suspended object is suspended. It is preferable that the pressing portion and the grip portion are detachably coupled by the portions engaging each other.

  By comprising in this way, in the state which suspended the to-be-suspended object, since a 1st and 2nd engaging part mutually engages, drop-off | omission of the press part from a holding part can be prevented.

  In the above-described hanging tool, each of the pressed parts protrudes outward from the suspended object and has side surfaces that come into contact with the pressing action unit, and the pair of side surfaces is only a second distance. They are spaced apart. Each of these side surfaces is formed with a groove or ridge as a first engagement portion.

  Each of the pressing portions includes a pressing surface that is in contact with the side surface, and the pair of pressing surfaces has a distance between the pressing surfaces from a distance exceeding the second distance to a distance less than (second distance−first distance). Oppositely arranged so as to narrow in a wedge shape. Each of the pressing surfaces is formed with a protruding line or groove that is loosely fitted to the first engaging part as the second engaging part.

  According to this configuration, the distance between the pair of pressing surfaces narrows in a wedge shape. The pair of pressing surfaces sandwich the pair of pressed parts from the outside. Since the pair of side surfaces of the pressed portion are separated by the second distance, the pressed portion sandwiched between the pressing surfaces comes into contact with the pressing surface at a position where the distance between the pressing surfaces becomes the second distance. . By the way, in the suspended state of the suspended object, the suspended object is subjected to its own weight, so that the pair of pressed parts tends to move toward the tip of the wedge formed by the pressing surface. As a result, the pressing surface presses the side surface of the pressed portion in the direction in which the second distance is shortened. When the second distance is shortened, the first distance between one end and the other end of the gripping portion provided with the pressed portion is also shortened. Therefore, the gripping part firmly grips the suspended object.

  Further, a groove or a ridge as a first engagement portion is provided on the side surface, and a ridge or a groove as a second engagement portion is provided on the pressing surface. As a result, the first and second engaging portions engage with each other, so that the pressing portion can be prevented from falling off from the gripping portion in a state where the suspended object is suspended.

  In the above-described hanger, each of the side surfaces of the pressed portion is formed as a flat pressed surface, and the angle between the pair of pressed surfaces is equal to the angle formed by the pair of pressed surfaces. Are arranged as follows.

  By comprising in this way, a pair of side surface of a to-be-pressed part can be matched with the wedge formed by the space | interval between press surfaces. As a result, the side surface of the pressed part and the pressing surface come into contact with each other over a wide area. Therefore, the engagement between the two is stable, and the protruding portion is difficult to come off from the pressing surface.

  In the above-described hanger, each of the pressing portions has a side surface that comes into contact with the pressed portion, and the pair of side surfaces are arranged apart from each other by a third distance. On each of the side surfaces, a ridge or groove is formed as a second engaging portion.

  Each of the pressed parts includes a pressed surface in contact with the side surface, and the pair of pressed surfaces is between the pressed surfaces from a distance exceeding (third distance + first distance) to a distance less than the third distance. Oppositely arranged so that the interval narrows like a wedge. On the pressed surface, as the first engaging portion, a protruding line or groove that is loosely fitted to the second engaging portion is formed.

  According to this structure, it arrange | positions so that a pair of to-be-pressed surface may be pinched | interposed between the side surfaces spaced apart only 3rd distance. By the way, the interval between the pressed surfaces spreads in a wedge shape to an interval exceeding (third distance + first distance). Therefore, the pair of pressed surfaces are in contact with the side surfaces at positions where the distance between the pressed surfaces is equal to the third distance. When the suspended object is suspended, the pair of pressed surfaces are pressed by the pair of side surfaces in the direction in which the third distance is shortened by the weight of the suspended object. As a result, the third distance, that is, the first distance is shortened, and the suspended object is firmly held by the holding portion.

  In the above-described hanger, the surrounding portion is divided into a first gripping piece and a second gripping piece made of a rigid body, and the first and second gripping pieces can be opened and closed with one hinge as an axis. preferable.

  According to this configuration, by opening and closing the first and second gripping pieces around the hinge, the suspended object can be easily gripped and released by the gripping portion.

  In the above-described hanging tool, the suspended object is preferably a rod having a circular cross section. Furthermore, it is preferable that the suspended object is a scaffold pipe.

  The hanging tool of the present invention has the above-described configuration. As a result, a hanging device having a simple structure and easy to use can be obtained.

  Embodiments of the present invention will be described below with reference to the drawings. Each figure is only a schematic illustration of the shape, size, and arrangement relationship of each component to the extent that the present invention can be understood. Moreover, although the preferable structural example of this invention is demonstrated below, the material, numerical condition, etc. of each component are only a preferable example. Therefore, the present invention is not limited to the following embodiment.

(Embodiment 1)
Hereinafter, the hanger according to the first embodiment will be described with reference to FIGS.

  FIG. 1 shows a state in which a cylindrical pipe P, which is a suspended object, is suspended using a hanging tool 10 (hereinafter also referred to as a suspended state). In addition, in FIG. 1, the pipe P is shown with the broken line. FIG. 2 is an exploded perspective view in which a main part of the hanger according to the first embodiment is enlarged. FIG. 3A is an enlarged plan view of the first and second pressed parts. FIG. 3B is a diagram showing a cross-sectional cut surface obtained by cutting FIG. 3A along the line II. FIG. 3C is an enlarged plan view of the pressing portion. FIG. 3D is a diagram showing a cross-sectional cut surface obtained by cutting FIG. 3C along the line II-II.

  First, the structure of the hanging tool 10 will be described with reference to FIG.

  The hanger 10 includes a grip portion 12 and a pressing portion 14.

  The grip portion 12 includes an surrounding portion 16 and a pressed portion 18.

  The surrounding part 16 which comprises the holding part 12 is a component which surrounds the pipe P as a suspended object from the circumference | surroundings, and grips the pipe P. As shown in FIG. The surrounding portion 16 includes a first grip piece 22 and a second grip piece 24.

  The first and second gripping pieces 22 and 24 have two pieces obtained by vertically dividing a cylinder whose inner diameter is substantially equal to the outer diameter of the pipe P and shorter than the entire length of the pipe P with a cut surface including the diameter. And has a shape corresponding to each of the sections, and is disposed at a position corresponding to each of the sections. That is, the first and second gripping pieces 22 and 24 are formed as curved pieces in which the semicircular arc-shaped end faces are connected by the peripheral wall.

  Here, in the first and second grip pieces 22 and 24, flat surfaces that face each other in parallel along the length direction of the pipe P are referred to as first end surfaces 22a and 24a. The first end surface 22a corresponds to “one end”, and the first end surface 24a corresponds to “other end”.

  Moreover, the flat surface which is located in the other side on both sides of the pipe P of the 1st end surfaces 22a and 24a, and opposes mutually parallel along the length direction of the pipe P is called 2nd end surface 22b and 24b.

  Moreover, in the 1st holding piece 22, the semicircular arc shaped both end surfaces mentioned above are called the 3rd end surface 22c and the 4th end surface 22d. Similarly, in the 2nd holding piece 24, the semicircular arc-shaped both end surfaces mentioned above are called the 3rd end surface 24c and the 4th end surface 24d.

  Furthermore, in the 1st holding piece 22, the outer peripheral surface of the semicylindrical peripheral wall which connects the 3rd end surface 22c and the 4th end surface 22d is called 22e, and an inner peripheral surface is called 22f. Similarly, in the second gripping piece 24, the outer peripheral surface of the semicylindrical peripheral wall connecting the third end surface 24c and the fourth end surface 24d is referred to as 24e, and the inner peripheral surface is referred to as 24f.

  The inner peripheral surfaces 22f and 24f of the first and second gripping pieces 22 and 24 are substantially matched with the outer peripheral surface of the pipe P gripped by the gripping pieces 22 and 24. That is, the radius of curvature of the inner peripheral surfaces 22f and 24f of the gripping pieces 22 and 24 and the radius of curvature of the outer peripheral surface of the pipe P are made substantially equal.

  The first and second grip pieces 22 and 24 are hinged to each other by a hinge 26. The hinge 26 and the first and second grip pieces 22 and 24 are integrally coupled on the second end faces 22b and 24b side.

  Further, when the first and second gripping pieces 22 and 24 are closed to each other around the hinge 26 to enclose the pipe P, the inner peripheral surfaces 22f and 24f of the respective gripping pieces 22 and 24 become the outer peripheral surface of the pipe P. In close contact. In this state, the first end faces 22a and 24a of the first and second grip pieces 22 and 24 face each other, and a space 20 is formed therebetween. This interval 20 is formed at a constant interval, that is, a width. This width is defined as a first distance L1 '. In other words, the circumferential lengths of the inner circumferential surfaces 22f and 24f of the first and second gripping pieces 22 and 24 are designed to be shorter than the length of the half circumference of the outer circumferential surface of the pipe P.

  The pressed portion 18 constituting the grip portion 12 is provided on the first and second grip pieces 22 and 24.

  The pressed portion 18 includes first and second pressed portions 18a and 18b. The first and second pressed parts 18a and 18b are provided on the outer peripheral surfaces 22e and 24e of the first and second grip pieces 22 and 24, respectively.

  The first and second pressed parts 18a and 18b are flat parts protruding from the outer peripheral surfaces 22e and 24e. The first and second pressed portions 18a and 18b are provided at positions facing each other along the first end surfaces 22a and 24a of the first and second gripping pieces 22 and 24, respectively. Therefore, the lower surfaces of the first and second pressed portions 18a and 18b on the gripping piece side are curved corresponding to the curvature of the outer peripheral surfaces 22e and 24e of the gripping pieces 22 and 24, but the upper surface is a flat surface. . Therefore, the first end faces 22a and 24a side of the first and second gripping pieces 22 and 24 of the first and second pressed parts 18a and 18b are thin and become thicker toward the opposite opposite sides. ing.

  Furthermore, the end surfaces on the first end surfaces 22a and 24a side of the first and second pressed portions 18a and 18b are connected to the first end surfaces 22a and 24a without any step. Further, the end surfaces of the first and second pressed portions 18a and 18b opposite to the first end surfaces 22a and 24a are linear flat surfaces, and the extended lines of the long edges of these end surfaces are provided. The crossing angles formed by the long edges of the first end faces 22a and 24a are equal to each other.

  In the first embodiment, the first and second pressed parts 18a and 18b are formed with the same shape and dimensions, and the planar shape is, for example, a trapezoid.

  Thus, when the planar shape of the first and second pressed parts 18a and 18b is a trapezoid, for example, the upper and lower bases of which the trapezoidal legs are non-parallel and have different lengths are used. The first end faces 22a and 24a are perpendicular to the extending direction. Further, in this case, preferably, the end surface corresponding to the leg of the first trapezoidal first end surface 22a side of the first pressed portion 18a is in contact with the first end surface 22a of the first gripping piece 22, and similarly, The end surface corresponding to the leg of the second pressed portion 18b on the first end surface 24a side of the trapezoid is brought into contact with the first end surface 24a of the second gripping piece 24.

  In this case, the direction of the arrangement of the upper base and the lower base of the trapezoid is the same for both the first and second pressed parts 18a and 18b. That is, the end surface corresponding to the lower base of the first pressed portion 18 a is arranged on the fourth end surface 22 d side of the first grip piece 22. Similarly, the end surface corresponding to the lower bottom of the second pressed portion 18 b is disposed on the fourth end surface 24 d side of the second grip piece 24.

  The first and second pressed parts 18a and 18b are arranged symmetrically with the interval 20 as the center when the pipe P is gripped by the first and second gripping pieces 22 and 24. In this state, it can be said that the first and second pressed parts 18a and 18b form almost one new wedge shape as a whole, especially a new trapezoidal shape as a whole.

  The new trapezoidal short upper base 19a is on the third end faces 22c and 24c side of the first and second gripping pieces 22 and 24, and the long lower base 19b parallel to the upper base is The first and second gripping pieces 22 and 24 are on the fourth end faces 22d and 24d side. And the groove | channels 30a and 30b (FIG. 2, FIG. 3 (A) and FIG. 3 (B)) are located in the part corresponding to the new trapezoidal both legs with the same length and inclination. These grooves 30a and 30b function as first engaging portions.

  These grooves 30a and 30b are, in the trapezoid formed by the first and second pressed parts 18a and 18b, respectively, lower portions of the end surfaces corresponding to the legs opposite to the first end surfaces 22a and 24a, that is, respectively. Is formed linearly along the leg on the gripping piece side portion.

  The pressing portion 14 is a component separate from the grip portion 12 and is a component for further tightening the first and second grip pieces 22 and 24 in cooperation with the grip portion 12. The pressing portion 14 has a wedge shape, particularly a trapezoidal plan shape, and includes first and second pressing action portions 36a and 36b on both legs of a trapezoidal plate-like body (FIGS. 2 and 3C). . These pressing action portions 36a and 36b are portions obtained by bending opposite ends of a trapezoidal plate-like body into a bag shape.

  The 1st and 2nd press action parts 36a and 36b are formed so that both the 1st and 2nd to-be-pressed parts 18a and 18b may be held inside from the end surface in which the groove | channels 30a and 30b are formed. The cross-sectional shape of each of the pair of pressing portions 36a and 36b is a “U” shape, and the inner groove surface acts as a pressing surface (FIGS. 2 and 3D). Further, each of the pressing action portions 36a and 36b is provided with the above-described bent portion, that is, the ridges 40a and 40b as the second engaging portion.

  The pressing portion 14 is provided with a suspended portion 34. The suspending portion 34 tightens the pipe P in cooperation with the grip portion 12 and grips the pipe P so as not to fall. The suspended portion 34 serves as a fulcrum when the pipe P is suspended. A rope R used for lifting is tied to the ring 34b of the hanging part 34.

  In the suspended state of the pipe P, the first and second pressing portions 36a and 36b are engaged with the first and second pressed portions 18a and 18b, respectively. More specifically, the pair of pressing action portions 36 a and 36 b are arranged so as to sandwich the first and second pressed portions 18 a and 18 b from the outside of the interval 20. At this time, the ridges 40a and 40b of the first and second pressing action portions 36a and 36b engage with the grooves 30a and 30b of the first and second pressed portions 18a and 18b, respectively. Thereby, the 1st and 2nd to-be-pressed parts 18a and 18b and the press part 14 are couple | bonded integrally so that attachment or detachment is possible.

  Next, the grip portion 12 will be described in more detail with reference to FIGS. 2, 3 (A), and 3 (B).

  The first and second pressed parts 18a and 18b of the gripping part 12 are closed with the first and second gripping pieces 22 and 24 surrounding the pipe P, but do not suspend the pipe P. In a state (hereinafter, also referred to as a gripping state or a closed state), the first end surfaces 22a and 24a face each other across the interval 20 of the first distance L1. The first and second pressed parts 18a and 18b are fixed at positions symmetrical to each other with the interval 20 therebetween. In the closed state, the planar shape of both the first and second pressed parts 18a and 18b is a trapezoid (see FIGS. 2 and 3A). In this new trapezoid 19, the upper base is represented by 19a and the lower base is represented by 19b. In this trapezoid 19, the angles formed by both legs are equal to each other at both ends of the lower base 19 b.

  As will be described in detail later, the first distance L1 in a state where the pipe P is not suspended (FIGS. 2, 3A and 3B) and a state where the pipe P is suspended (FIG. 1). Naturally, the value is different from the first distance L1 ′. Specifically, L1> L1 '.

  Hereinafter, in the closed state, that is, in the state where the gripping portion 12 grips the pipe P, the center line along the extending direction of the interval 20 is referred to as a center axis C1 (see FIG. 3A). As a matter of course, the central axis C1 is parallel to the opposed surfaces 42a and 42b.

  Each of the first and second pressed parts 18a and 18b constituting the gripping part 12 includes opposing surfaces 42a and 42b facing each other with an interval 20 therebetween. The facing surface 42a is connected to the first end surface 22a of the first gripping piece 22 without a step. Similarly, the opposing surface 42b is connected to the first end surface 24a of the second grip piece 24 without a step.

  Each of the first and second pressed parts 18a and 18b includes upper surfaces 44a and 44b. The upper surfaces 44 a and 44 b are flat surfaces with respect to the curved surfaces of the outer peripheral surfaces 22 e and 24 e of the surrounding portion 16. Therefore, the upper surfaces 44a and 44b are in the same plane separated from the outer peripheral surface of the pipe P in the closed state.

  Each of the first and second pressed portions 18a and 18b includes first and second pressed surfaces 28a and 28b having a flat surface shape. More specifically, in the first pressed portion 18a, the side surface opposite to the facing surface 42a is the first pressed surface 28a. Similarly, in the second pressed portion 18b, the side surface opposite to the facing surface 42b is the second pressed surface 28b. The heights measured from the outer peripheral surfaces 22e and 24e of the first and second pressed surfaces 28a and 28b are equal to H1, respectively (FIG. 3B).

  Each of the first and second pressed surfaces 28a and 28b is disposed to be inclined at an equal angle with respect to the central axis C1. That is, when both the first and second pressed surfaces 28a and 28b are viewed together, the first and second pressed surfaces 28a and 28b are arranged so as to form both slopes of the wedge. The angle formed by the first and second pressed surfaces 28a and 28b, that is, the acute angle angle at the intersection of two straight lines along the extending direction of the first and second pressed surfaces 28a and 28b is defined as θ1 (FIG. 3 (A)).

  Here, in the closed state, a distance that satisfies the following two conditions is referred to as a second distance L2.

  (Condition 1): A distance between the first and second pressed surfaces 28a and 28b measured in a direction perpendicular to the central axis C1.

(Condition 2): When the minimum value of the distance between the pressing surface to be described later and _{LD min} and the maximum value of the _{LD max} (FIG 3 (C)), for these _{LD min} and _{LD max,} (a) L2 < Both the conditions LD _max and (b) (L2−L1)> LD _min are satisfied.

  At this time, the first and second pressed surfaces 28a and 28b are formed and arranged so that there is a second distance L2 that satisfies both of these (Condition 1) and (Condition 2).

  Further, the grooves 30a and 30b described above are formed in the first and second pressed surfaces 28a and 28b, respectively. The grooves 30a and 30b are grooves provided at the lower ends of the first and second pressed surfaces 28a and 28b, that is, the portions on the outer peripheral surfaces 22e and 24e side. As described above, the grooves 30a and 30b are The first and second pressed surfaces 28a and 28b are formed along the extending direction. Here, the respective depths of the grooves 30a and 30b, that is, the depths in the direction perpendicular to the first and second pressed surfaces 28a and 28b are D1 (FIG. 3B).

  Next, the pressing portion 14 will be described in more detail with reference to FIGS. 2, 3 (C), and 3 (D).

  The pressing part 14 includes a top plate 32, first and second pressing action parts 36 a and 36 b, and a suspension part 34.

  The top plate 32 is a flat plate having a trapezoidal planar shape, and has an upper edge 32a and a lower edge 32b corresponding to the upper and lower bases of the trapezoid, and two side edges 32c and 32d corresponding to the trapezoidal legs. have. The upper edge 32a and the lower edge 32b are parallel to each other, and the upper edge 32a is shorter than the lower edge 32b. The side edges 32c and 32d connecting the end portions of the upper edge 32a and the lower edge 32b have the same length, and the distance between the side edges 32c and 32d increases from the lower edge 32b toward the upper edge 32a. , Narrows linearly. Therefore, it is formed in a plane shape symmetrical with respect to a line segment (hereinafter referred to as the central axis C2) connecting the midpoints of the upper edge 32a and the lower edge 32b. That is, the angles formed at both ends of the lower edge 32b of the top plate 32 are equal to each other.

  The pressing portion 14 is provided with a suspended portion 34 that extends in the direction away from the pipe P in the vicinity of the center portion of the surface of the top plate 32.

  The suspension part 34 includes a shaft part 34a connected to the top plate 32 and a ring 34b connected to the tip of the shaft part 34a. The rope R is tied to the ring 34b as described above.

  The first and second pressing action portions 36a and 36b are plate-like components, and are provided on the back surface 32e of the top plate 32 along the side edges 32c and 32d thereof perpendicularly to the top plate 32. (FIGS. 2 and 3D).

  The inner surfaces of the first and second pressing portions 36a and 36b facing each other form flat pressing surfaces 38a and 38b. Both pressing surfaces 38a and 38b are arranged symmetrically with respect to the central axis C2. The height measured from the back surface 32e of the top plate 32 of the pressing surfaces 38a and 38b is equal to H2 (FIG. 3D). Here, there is a relationship of H2 ≧ H1 between H2 and the height H1 (FIG. 3B) of the first and second pressed surfaces 28a and 28b described above.

  The angle formed by both pressing surfaces 38a and 38b, that is, the acute angle at the intersection of two straight lines along the extending direction of both pressing surfaces 38a and 38b is defined as θ2 (FIG. 3C). At this time, there is a relationship of θ2 = θ1 between θ2 and the angle θ1 (FIG. 3A) formed by the first and second pressed surfaces 28a and 28b described above.

The distance between the pressing surfaces 38a and 38b at the position where the pressing surfaces 38a and 38b are closest to each other, that is, the position corresponding to the upper edge 32a of the top plate 32 is defined as a pressing surface distance LD _min . Furthermore, both pressing surfaces 38a and 38b and the farthest position, that is, the both pressing surfaces 38a and 38b a distance at a position corresponding to the lower edge 32b of the top plate 32 and between the pressing surface distance _{LD max.} It is assumed that the distances LD _min and LD _max between the pressing surfaces are measured at right angles to the central axis C2.

At this time, the distances LD _min and LD _max between the pressing surfaces need to satisfy LD _max > L2 and LD _min <(L2−L1) with respect to the second distance L2. That is, the distance between the pressing surfaces 38a and 38b is linear from the distance exceeding the second distance L2 (for example, LD _max ) to the distance (for example, LD _min ) less than the second distance-first distance (L2-L1). The first and second pressing action portions 36a and 36b are arranged so as to face each other.

  Convex ridges 40a and 40b as second engaging portions are provided at the lower ends of the first and second pressing action portions 36a and 36b, respectively. The ridges 40a and 40b are provided at the lower ends of the first and second pressing action portions 36a and 36b toward the opposing pressing action portions, respectively. These ridges 40a and 40b are formed along the extending direction of the pressing surfaces 38a and 38b, respectively. Here, the respective heights of the ridges 40a and 40b, that is, the heights in the direction perpendicular to the pressing surfaces 38a and 38b are defined as D2. At this time, there is a relationship of D2 ≦ D1 between D2 and the depth D1 of the above-described grooves 30a and 30b.

  As is apparent from the above description, the pressing portion 14 has a wedge shape, particularly a trapezoidal plate-like top plate 32 in which both side edges 32c and 32d are folded in a U shape in the same direction. There is no. The top plate 32, the first and second pressing action portions 36a and 36b, and the ridges 40a and 40b accommodate all or part of the pressed portion 18 described above. The lower edge 32b side of the top plate 32 of the housing space is an insertion port for the pressed portion 18.

  Next, the operation and action of the hanger 10 will be described with reference to FIGS.

  FIG. 4A is a perspective view showing a state in the middle of enclosing the pipe P by the grip portion 12. FIG. 4B is a perspective view showing a stage in the middle of engaging the pressing portion 14 with the first and second pressed portions 18a and 18b. FIG. 4C is a perspective view showing a state in which the pressing portion 14 is engaged with the first and second pressed portions 18a and 18b.

  First, with reference to FIG. 4 (A) to FIG. 4 (C), a process of setting the hanging tool 10 on the pipe P will be described.

  As shown in FIG. 4A, first, the pressing portion 14 is removed from the grip portion 12. Then, the pipe P is enclosed by the gripping part 12. More specifically, the first and second gripping pieces 22 and 24 of the surrounding portion 16 are rotated around the hinge 26 to open the gripping pieces 22 and 24. Then, the distance between the first end surface 22 a of the first gripping piece 22 and the first end surface 24 a of the second gripping piece 24 is made larger than the outer diameter of the pipe P.

  In this state, the pipe P is set so as to come into contact with the inner peripheral surface 22f of the first gripping piece 22. As a result, almost half of the outer periphery of the pipe P is surrounded by the first gripping piece 22. Then, the second gripping piece 24 is rotated around the hinge 26 so that the first end surface 24a of the second gripping piece 24 approaches the first end surface 22a of the first gripping piece 22, and the second gripping piece 24 surrounds the other half of the outer periphery of the pipe P.

  Subsequently, as shown in FIG. 4B, the pressing portion 14 is engaged with the pressed portion 18, and thus the first and second pressed portions 18 a and 18 b. More specifically, first, the insertion opening of the accommodation space on the lower edge 32b side of the pressing portion 14 is moved along the central axis C1 toward the first and second pressed portions 18a and 18b (see FIG. Middle arrow Ar1).

By the way, there is a relationship of LD _max > L2 between the first and second pressed parts 18a and 18b and the pressing part 14 as described above. Therefore, the first and second pressed parts 18a and 18b, and thus the pressed part 18 are smoothly fitted into the accommodation space of the pressing part 14 from the insertion port.

  When the pressing portion 14 is moved in the Ar1 direction, the pressing surfaces 38a and 38b eventually become the first and second pressed surfaces 28a and 28b (FIG. 3A) as shown in FIG. 4C. ). Thereby, the movement of the pressing part 14 stops. In the state where the movement is stopped, the first and second pressing portions 36a and 36b (FIG. 3C) are positioned so as to sandwich the first and second pressed portions 18a and 18b from the outside.

  In this state, the ridges 40a and 40b (second engagement portions) are respectively formed in the grooves 30a and 30b (first engagement portion: FIG. 3B) of the first and second pressed portions 18a and 18b. : FIG. 3D is loosely fitted.

  Thereby, the setting of the hanging tool 10 is completed.

  Next, the process of suspending the pipe P using the lifting tool 10 will be described with reference to FIGS.

  FIG. 5A is a perspective view showing a state of the pipe P and the hanging tool 10 in a non-suspended state. FIG. 5B is a perspective view showing a state of the suspended pipe P and the hanging tool 10.

  FIG. 5A shows a state where the hanging tool 10 has been set, but the pipe P is not suspended. Hereinafter, this state is referred to as a “non-suspended state”. In the unsuspended state, the pipe P lies completely on the ground. In the non-suspended state, the weight of the pipe P is not applied to the hanging tool 10.

  When the rope R tied to the ring 34b is pulled up from the non-suspended state, the pipe P is suspended with the ring 34b as a fulcrum as shown in FIG. 5B. Eventually, the lower end of the pipe P leaves the ground, and the pipe P is completely suspended (suspended state). In the suspended state, the pressing portion 14 is subjected to the weight of the pipe P, more precisely, the total weight of the pipe P and the gripping portion 12. Hereinafter, the “total weight of the pipe P and the grip portion 12” is also referred to as “the weight of the suspended object”.

  Next, with reference to FIG. 6 (A)-FIG. 6 (D), the first and second pressed parts 18a and 18b and the first pressed part 18 of the pressed part 18 in each of the non-suspended state and the suspended state And the relative positional relationship with the 2nd press action parts 36a and 36b, and the force which the surrounding part 16 exerts on the pipe P are demonstrated.

  FIG. 6A is a schematic plan view for explaining the relative positional relationship between the first and second pressed portions 18a and 18b and the first and second pressing action portions 36a and 36b in a non-suspended state. is there. FIG. 6B is a diagram showing a cross section of the hanging tool 10 and the pipe P in a non-suspended state. FIG. 6C is a schematic plan view for explaining the relative positional relationship between the first and second pressed portions 18a and 18b and the first and second pressing action portions 36a and 36b in the suspended state. . FIG. 6D is a view showing a cross section of the hanging tool 10 and the pipe P in the suspended state.

  As shown in FIG. 6A, in the non-suspended state, the weight of the suspended object is not applied to the lifting tool 10, so that the first end face 22a of the first grip piece 22 of the surrounding portion 16 and the second grip piece The distance between the first end face 24a and the first end face 24a is kept at the first distance L1.

  Further, the lower base 19b of the trapezoid 19 formed by the first and second pressed parts 18a and 18b protrudes from the lower edge 32b side of the top plate 32.

  In this state, as shown in FIG. 6B, there is a slight gap between the inner peripheral surfaces 22f and 24f of the surrounding portion 16 and the outer periphery of the pipe P. That is, the surrounding portion 16 does not apply a radially inward force to the outer peripheral surface of the pipe P.

  On the other hand, as shown in FIG. 6C, in the suspended state, the weight of the suspended object is applied to the hanging tool 10. As a result, a downward force in the direction of gravity (a white arrow Ar2 in the figure) is applied to the grip portion 12. As a result, each of the first and second pressed parts 18a and 18b receives the weight of the suspended object and slides along the pressing surfaces 38a and 38b toward the upper edge 32a of the pressing part 14. (Arrow Ar3 in the figure).

  By the way, the distance between the pressing surfaces 38a and 38b becomes narrower toward the upper edge 32a side of the pressing portion 14. Therefore, the first and second pressed parts 18a and 18b are in a direction (arrow Ar4 in the drawing) in which the first distance L1 is shortened from the pressing surfaces 38a and 38b toward the tip on the upper edge 32a side of the pressing part 14. Receive power. As a result, the first distance L1 'in the suspended state is smaller than L1 in the non-suspended state.

  As shown in FIG. 6D, the inner circumference of the surrounding portion 16 is shortened by reducing the first distance to L1 '. As a result, the surrounding portion 16 tightens the outer peripheral surface of the pipe P. That is, the surrounding portion 16 applies a radially inward force to the outer peripheral surface of the pipe P (arrow Ar5 in the figure). Therefore, the frictional force between the outer peripheral surface of the pipe P and the inner peripheral surfaces 22f and 24f of the surrounding portion 16 (the first and second gripping pieces 22 and 24) increases, and the pipe P does not fall and the surrounding portion 16 is firmly gripped.

  In other words, in the suspended state, the weight of the suspended object is converted into a force (arrow Ar5) in the direction of shortening the first distance L1 by the pressing portion 14, and the first and second pressed objects. It acts on the parts 18a and 18b.

Here, since the relationship of LD _min <(L2−L1) exists between the first and second pressed portions 18a and 18b and the pressing portion 14 as described above, even if the first distance L1 ′ is satisfied. Even if 0 becomes zero (zero), the first and second pressed parts 18a and 18b (gripping part 12) together with the pipe P will not fall out from the opening on the upper edge 32a side of the pressing part 14.

  Further, since the protrusions 40a and 40b of the pressing surfaces 38a and 38b are engaged with the grooves 30a and 30b of the first and second pressed parts 18a and 18b, the pressing part 12 is pressed from the grip part 12 in the suspended state. 14 does not fall off.

  Next, the effect which the hanging tool 10 plays is demonstrated.

  The hanging tool 10 is formed of only two parts, that is, a gripping part 12 and a pressing part 14. Further, when gripping the pipe P, there is no need to use a spring (first prior art), a worm rack mechanism (second prior art), or the like. Therefore, the hanging tool 10 has a very simple structure.

  In the first prior art, when the pipe P is suspended, it is necessary to pass the pipe P through the guide hole of the pipe suspension. Similarly, in the second prior art, when the pipe P is suspended, it is necessary to pass the pipe P through the opening of the band. That is, in these prior arts, when passing the pipe suspender and the band (hereinafter referred to as a conventional jig) through the pipe P, the operator moves to the end of the pipe P and then moves the end of the pipe P. Therefore, it was necessary to insert the conventional jig into the pipe P. However, in the hanging tool 10 of this embodiment, the first and second gripping pieces 22 and 24 open and close around the hinge 26. Therefore, when gripping the pipe P, the operator moves to the end of the pipe P. There is no need. As a result, the hanger 10 is more convenient than the conventional jig.

  Moreover, in the hanging tool 10, in the suspended state, the first and second pressed surfaces 28a and 28b and the pressing surfaces 38a and 38b are in contact with each other over a wide area. As a result, a frictional force is generated between the first and second pressed surfaces 28a and 28b and the pressing surfaces 38a and 38b. Therefore, both-side engagement is stabilized. That is, even when an impact in the antigravity direction is applied to the suspended pipe P, the above-described friction force causes the pressing action portions 36a and 36b and the first and second pressed portions 18a and 18b to Deviation is suppressed. In other words, the pipe P is not loosened by the surrounding portion 16 with a slight impact. As a result, the dropout of the pipe P from the surrounding portion 16 is suppressed.

  Next, the design conditions of the hanging tool 10 will be described.

  In the hanger 10, the inner periphery of the surrounding portion 16 including the first distance L1 is larger than the outer periphery of the pipe P, and the inner periphery of the surrounding portion 16 not including the first distance L1 is smaller than the outer periphery of the pipe P. It is preferable. By setting the inner circumference of the surrounding portion 16 to this length, when the pipe P is gripped by the surrounding portion 16, the gap between the first end surface 22a of the first gripping piece 22 and the first end surface 24a of the second gripping piece 24 is set. The first distance L1 larger than 0 (zero) can be secured. Therefore, in the suspended state, the pressing portion 14 can apply a force in a direction to shorten the first distance L1 to the first and second pressed portions 18a and 18b.

  Moreover, as a material which comprises the 1st and 2nd holding pieces 22 and 24, the rigid body which can shorten the 1st distance L1 with the dead weight of a suspended object can be used. As this material, for example, a metal such as iron is suitable.

  The surrounding portion 16 does not need to be configured by the first gripping piece 22 and the second gripping piece 24 that can be opened and closed around the hinge 26. For example, as shown in FIG. 7A, a pair of metal plates 46a and 46b provided with first and second pressed portions 18a and 18b are connected by a plurality of wires 48, 48, 48 as the surrounding portion 16. Can be used. Further, as shown in FIG. 7 (B), as the surrounding portion 16, a structure in which three or more gripping pieces 50, 50, 50... Are connected by hinges 52, 52,. Can do. Although not shown, a leather band can be used as the surrounding portion 16.

  By configuring the surrounding portion 16 as described above, the surrounding portion 16 can be deformed along the outer periphery of the suspended object. As a result, a suspended object whose cross-sectional shape is not circular can also be suspended.

  Further, the inner peripheral surfaces 22f and 24f (contact surfaces with the pipe P) of the surrounding portion 16 may be roughened. In roughening the surface, it is preferable to extend the protrusion on the rough surface obliquely upward with respect to the direction of gravity. By doing in this way, the friction of the surrounding part 16 and the pipe P can be enlarged, and it becomes much more difficult for the pipe P to fall off.

  The suspended object is not limited to the hollow cylindrical pipe P, and may be a columnar bar.

  When a hollow cylindrical pipe P is used as the suspended object, a scaffold pipe having an outer diameter of 48.6 mm is particularly suitable.

  Further, as shown in FIG. 8A, the grip portion 12 and the pressing portion 14 may be connected by a wire 54 or the like. By doing in this way, the holding part 12 and the press part 14 which make a pair mutually do not dissipate.

  Similarly, as shown in FIG. 8B, a protrusion 56 may be provided on the outer peripheral surface 24e in the distal direction on the tapered side of the wedge shape, which is made by the first and second pressed portions 18a and 18b. By providing the protrusion 56, it is possible to prevent the pressing portion 14 from falling off from the first and second pressed portions 18a and 18b when the hanger 10 is not used. As a result, the gripping part 12 and the pressing part 14 that are paired with each other do not dissipate.

  Moreover, in this embodiment, the example which made the 1st engaging part the groove | channels 30a and 30b and the 2nd engaging part the protruding item | line 40a and 40b was demonstrated. However, the first engagement portion and the second engagement portion are not limited to these.

  For example, the first and second pressed portions 18a and 18b are provided with a ridge as a first engaging portion, and the pressing action portions 36a and 36b are provided with a groove that is loosely fitted with the ridge as a second engaging portion. May be.

  Further, for example, the first and second engaging portions may be configured as shown in FIG. FIG. 9 is a diagram showing a cross-sectional cut for explaining a state in which the pressing portion 14 is engaged with the first and second pressed portions 18a and 18b. The first and second pressed portions 18a and 18b include first and second pressed surfaces 58a as first engaging portions that are tapered in a tapered manner toward the outer peripheral surfaces 22e and 24e of the surrounding portion 16. 58b is provided. The pressing portion 14 is provided with pressing surfaces 60a and 60b as second engaging portions corresponding to the shapes of the first and second pressed surfaces 58a and 58b.

  By configuring the first and second engaging portions in this way, it is possible to prevent the pressing portion 14 from falling off from the first and second pressed portions 18a and 18b in the suspended state. In addition, in the suspended state, the first and second pressed surfaces 58a and 58b tend to move downward along the tapered pressing surfaces 60a and 60b due to the weight of the suspended object. As a result, a force in a direction to shorten the first distance L1 acts on the first and second pressed surfaces 58a and 58b. Therefore, the surrounding portion 16 can tighten the pipe P more strongly.

(Embodiment 2)
Hereinafter, the hanger according to the second embodiment will be described with reference to FIGS.

  FIG. 10 is an enlarged exploded perspective view of a main part of the hanger 70 in the vicinity of the first and second pressed parts 72a and 72b.

  The hanger 70 is the same as the hanger 10 of the first embodiment except that the shapes of the first and second pressed portions 72a and 72b are different. Therefore, in FIG. 10, the same reference numerals are given to the same components as those in FIGS.

  In the hanger 70, the first and second pressed portions 72a and 72b are respectively connected to the outside of the pipe P from the outer peripheral surfaces 22e and 24e of the first and second gripping pieces 22 and 24 constituting the surrounding portion 16. It is comprised as a substantially cylindrical pin which protrudes toward. The first and second pressed parts 72a and 72b are arranged symmetrically with respect to the central axis C1.

  Each of the first and second pressed portions 72a and 72b includes first and second side surfaces 74a and 74b. The respective heights measured from the outer peripheral surfaces 22e and 24e of the first and second side surfaces 74a and 74b are set to H1 as in the case of the first and second pressed surfaces 28a and 28b of the first embodiment.

  The first and second side surfaces 74a and 74b are in contact with the pressing surfaces 38a and 38b of the pressing portion 14, respectively. That is, the first and second side surfaces 74a and 74b perform the same function as the first and second pressed surfaces 28a and 28b described in the first embodiment.

  Here, in the first and second side surfaces 74a and 74b, the portions where the pressing surfaces 38a and 38b come into contact are particularly referred to as first and second contact portions 75a and 75b. At this time, the distance between both contact portions 75a and 75b is set to the second distance L2 as described in the first embodiment.

At this time, between the second distance L2 and the distances LD _min and LD _max between the pressing surfaces described in the first embodiment (FIG. 3C), (L2 <LD _max and (L2-L1)) > LD _min ). In other words, the pressing surfaces 38a and 38b included in the first and second pressing action portions 36a and 36b respectively have a distance (for example, LD) less than the second distance minus the first distance (L2−L1) from the distance exceeding the second distance L2. _min ), the two pressing surfaces 38a and 38b are arranged so as to face each other so that the distance between them is reduced linearly.

  Further, grooves 76a and 76b as first engaging portions are formed in the first and second side surfaces 74a and 74b, respectively. The grooves 76a and 76b are provided in the lower end portions of the first and second pressed portions 72a and 72b, that is, in the vicinity of the connection portion with the outer peripheral surfaces 22e and 24e.

  The depth measured from the first and second side surfaces 74a and 74b of the grooves 76a and 76b is D1 as in the grooves 30a and 30b described in the first embodiment.

  Next, with reference to FIG. 11, operation | movement and an effect | action of the hanging tool 70 are demonstrated.

  FIG. 11 is a perspective view of the hanging tool 70 in a suspended state.

  In using the lifting tool 70, first, the pipe P is surrounded by the grip portion 12, and then the pressing portion 14 is engaged with the pair of first and second pressed portions 72 a and 72 b. That is, the pressing portion 14 is moved along the central axis C1 until both pressing surfaces 38a and 38b come into contact with the first and second contact portions 75a and 75b.

  Then, the pipe P is made into a suspended state by pulling up the rope R tied to the ring 34b. In this process, the weight of the suspended object is applied to the hanging tool 70. As a result, the first and second pressed parts 72a and 72b slide on the pressing surfaces 38a and 38b in the direction of the tapered tip. That is, the first and second pressed parts 72a and 72b receive a force in the direction of shortening the first distance L1 from both the pressing surfaces 38a and 38b. Therefore, the first distance L1 'in the suspended state is smaller than L1 in the non-suspended state.

  Thereby, the pipe P is clamped by the surrounding part 16, and the pipe P is gripped by the surrounding part 16 without falling.

  At this time, since the protrusions 40a and 40b of the pressing surfaces 38a and 38b are engaged with the grooves 76a and 76b of the first and second pressed parts 72a and 72b, they are pressed from the grip part 12 in the suspended state. The part 14 does not fall off.

In addition, since the relationship LD _min <(L2-L1) exists as described above, even if the first distance L1 ′ becomes 0 (zero), the opening from the upper edge 32a side of the pressing portion 14 The first and second pressed parts 72a and 72b (gripping part 12) together with the pipe P will not fall out.

  Next, the effect which the hanging tool 70 plays is demonstrated.

  The hanger 70 has a simpler structure than the conventional jig for the same reason as described in the first embodiment.

  Further, the lifting tool 70 is more convenient than the conventional jig for the same reason as described in the first embodiment.

  Next, with reference to FIG. 12, the modification of the hanging tool 70 is demonstrated.

  FIG. 12 is an exploded perspective view of main parts of the hanger 80. The hanger 80 is the same as the hanger 70 except that the shape of the pressing portion 82 is different. Accordingly, in FIG. 12, the same components as those in FIG. 10 are denoted by the same reference numerals, and description thereof will be omitted as appropriate.

  In the hanger 80, the pressing portion 82 is formed in a flat plate shape. More specifically, the pressing portion 82 includes a flat plate 84 and a suspended portion 86, and first and second long holes 88 a and 88 b are formed in the flat plate 84.

  The suspended portion 86 is connected to the surface of the flat plate 84, and includes a shaft portion 86a and a ring 86b connected to the tip of the shaft portion 86a. A rope R (not shown) is tied to the ring 86b.

  The flat plate 84 is formed with first and second long holes 88a and 88b. These long holes 88 a and 88 b are arranged symmetrically with respect to the central axis C <b> 3 of the flat plate 84. When the first and second elongated holes 88a and 88b are viewed in plan, they are arranged in a substantially “C” shape with the central axis C3 interposed therebetween.

  The first and second elongated holes 88a and 88b are formed from the enlarged diameter portions 90a and 90b provided at the end on the suspension portion 86 side, and the continuous hole portions 92a and 92b connected to the enlarged diameter portions 90a and 90b, respectively. Become.

  The enlarged diameter portions 90a and 90b are substantially circular, and the diameter thereof is larger than the diameter r1 of the upper surfaces of the first and second pressed portions 72a and 72b.

  The continuous hole portions 92a and 92b have a width W in the direction orthogonal to the extending direction smaller than r1 and larger than the diameter r2 of the first and second pressed portions 72a and 72b in the grooves 76a and 76b. Value. Further, the continuous hole portions 92a and 92b are arranged so that the interval gradually becomes narrower along the central axis C3 toward the side opposite to the suspended portion 86.

  In using the hanger 80, the first and second pressed portions 72a and 72b are inserted into the enlarged diameter portions 90a and 90b, respectively, in a state where the surrounding portion 16 grips the pipe P. Then, the pressing part 82 is moved in the direction of the suspension part 86, whereby the first and second pressed parts 72a and 72b are engaged with the continuous hole parts 92a and 92b, respectively.

  At this time, since the width W of the continuous hole portions 92a and 92b is smaller than r1 and larger than r2 as described above, the side surfaces of the continuous hole portions 92a and 92b are engaged with the grooves 76a and 76b, respectively. To do. Therefore, the first and second pressed parts 72a and 72b do not fall off from the continuous hole parts 92a and 92b.

  In this state, when the rope R (not shown) tied to the ring 86b is pulled up, the hanging tool 80 is loaded with the weight of the suspended object. As a result, the first and second pressed parts 72a and 72b move toward the tips of the continuous hole parts 92a and 92b. By the way, since the space | interval of the continuous hole parts 92a and 92b is narrowing gradually, while moving toward a front-end | tip, the space | interval of the 1st and 2nd to-be-pressed parts 72a and 72b becomes narrow. That is, a force in a direction that shortens the first distance L1 acts on the first and second pressed portions 72a and 72b. Therefore, the pipe P is tightened more strongly by the surrounding portion 16, and the pipe P is suspended without dropping off.

(Embodiment 3)
Hereinafter, the hanger 91 according to the third embodiment will be described with reference to FIGS.

  FIG. 13 is an enlarged exploded perspective view of a main part of the hanger 91. FIG. 14A is a plan view of the pressing portion. FIG. 14B is a front view of the pressing portion.

  The hanger 91 is the same as the hanger 10 of the first embodiment except that the shape of the pressing portion 93 is different. Therefore, in FIG. 13, the same components as those in FIGS.

  In the hanger 91, the pressing portion 93 includes first and second pressing action portions 94a and 94b made of a substantially cylindrical pin, and a connection plate 96 that connects between the first and second pressing action portions 94a and 94b. And a suspension part 98 connected to the connection plate 96.

  The first and second pressing action portions 94a and 94b include side surfaces 100a and 100b, respectively. The distance between both side surfaces 100a and 100b is referred to as a third distance L3.

  Convex ridges 102a and 102b as second engaging portions are provided at the lower ends of the first and second pressing action portions 94a and 94b.

  The connection plate 96 is a plate-like component that connects the upper surfaces of the first and second pressing action portions 94a and 94b.

  The suspended portion 98 is connected to the vicinity of the central portion of the side surface of the connection plate 96 and extends substantially vertically from the side surface. The suspended portion 98 includes a shaft portion 98a connected to the connection plate 96, and a ring 98b provided at the tip of the shaft portion 98a. A rope R (not shown) used when the pipe P is suspended is tied to the ring 98b.

  Here, the dimensional relationship between the third distance L3 and the first and second pressed parts 18a and 18b will be described.

  Now, it is assumed that the pipe P is gripped by the surrounding portion 16 and the first and second gripping pieces 22 and 24 are closed. In this case, the first end face 22a of the first gripping piece 22 of the surrounding portion 16 and the first end face 24a of the second gripping piece 24 are opposed to each other with the first distance L1 as described above.

In this state, the maximum distance between the first and second pressed surfaces 28a and 28b is defined as a distance LS _max between the pressed surfaces, and the minimum distance LS _min between the pressed surfaces. At this time, a relationship of (LS _max −L1)> L3 and LS _min <L3 is established between LS _max , LS _min, and L3.

That is, the first and second pressed surfaces 28a and 28b have a pressed surface less than the third distance L3 from the distance LS _max between the pressed surfaces that exceeds the sum of the third distance L3 and the first distance L1 (L3 + L1). The distance between the pressing surfaces is arranged so as to narrow down to a wedge-like distance LS _min .

By setting LS _min <L3, the pressing portion 93 can be smoothly inserted into the first and second pressed portions 18a and 18b. Further, by setting (LS _max −L1)> L3, the first end surface 22a of the first gripping piece 22 of the surrounding portion 16 and the first end surface 24a of the second gripping piece 24 are brought into contact with each other. And even if the distance of the 2nd to-be-pressed surfaces 28a and 28b becomes short, the press part 93 does not fall out from the 1st and 2nd to-be-pressed parts 18a and 18b.

  Next, with reference to FIG. 15, operation | movement and an effect | action of the hanging tool 91 are demonstrated.

  FIG. 15 is a perspective view of the hanger 91 in a suspended state.

  In using the lifting tool 91, first, the pipe P is surrounded by the grip portion 12, and then the pressing portion 93 is engaged with the pair of first and second pressed portions 18 a and 18 b. That is, the pressing portion 93 is moved in the direction of the fourth end surfaces 22d and 24d along the central axis C1 until the both side surfaces 100a and 100b come into contact with the first and second pressed surfaces 28a and 28b.

  Then, the pipe P is made into a suspended state by pulling up the rope R tied to the ring 98b. In this process, the weight of the suspended object is applied to the hanging tool 91. As a result, both side surfaces 100a and 100b slide toward the rear end of the wedge along the first and second pressed surfaces 28a and 28b. That is, the first and second pressed parts 18a and 18b receive a force in a direction that shortens the first distance L1 from both side surfaces 100a and 100b. Therefore, the first distance L1 'in the suspended state is smaller than L1 in the non-suspended state.

  Thereby, the pipe P is clamped by the surrounding part 16, and the pipe P is gripped by the surrounding part 16 without falling.

  At this time, since the protrusions 102a and 102b of the side surfaces 100a and 100b are engaged with the grooves 30a and 30b of the first and second pressed parts 18a and 18b, in the suspended state, the pressing part 12 93 does not fall off.

As described above, since there is a relationship of LS _max > (L3 + L1), even if the first distance L1 ′ becomes 0 (zero), the pressing portion 93 has the first and second pressed surfaces 28a and 28a. It does not fall off with the pipe P from 28b.

  Next, the effect produced by the hanger 91 will be described.

  The suspension 91 has a simple structure compared to the conventional jig for the same reason as described in the first embodiment.

  Moreover, the hanger 91 is more convenient than the conventional jig for the same reason as described in the first embodiment.

It is a perspective view which shows roughly the structure of the hanging tool of Embodiment 1. FIG. FIG. 3 is an exploded perspective view in which a main part of the hanger according to the first embodiment is enlarged. (A) is an enlarged plan view of a pressed part, (B) is a figure which shows the cross-sectional cut which cut | disconnected the pressed part along the II line | wire of FIG. 3 (A). (C) is an enlarged plan view of a pressing part, (D) is a figure which shows the cross-sectional cut which cut | disconnected the pressing part along the II-II line of FIG.3 (C). (A) is a perspective view which shows the state in the middle of enclosing a pipe with a holding part. (B) is a perspective view which shows the stage in the middle of engaging a press part with a to-be-pressed part. (C) is a perspective view which shows the state by which the press part was engaged with the to-be-pressed part. (A) is a perspective view which shows the state of a pipe and a hanging tool of a non-suspended state. (B) is a perspective view which shows the state of a suspended pipe and a hanging tool. (A) is a top view which shows roughly the relative positional relationship of the to-be-pressed part and press part in a non-suspended state. (B) is a figure which shows the cross-section cut end of the hanging tool and pipe in a non-suspended state. (C) is a top view which shows roughly the relative positional relationship of the to-be-pressed part and pressing part in a suspended state. (D) is a figure which shows the cross-section cut end of the hanging tool and pipe in a suspended state. (A) is a perspective view which shows the modification of an enclosure part in Embodiment 1. FIG. (B) is sectional drawing which shows the modification of an enclosure part in Embodiment 1. FIG. (A) is a perspective view which shows the modification of a hanging tool in Embodiment 1. FIG. (B) is a perspective view showing a modification of the surrounding portion in the first embodiment. FIG. 10 is a diagram showing a cross-sectional cut for explaining a modification of the first and second engaging portions in the first embodiment. It is a principal part expansion disassembled perspective view of the to-be-pressed part vicinity of the hanging tool of Embodiment 2. FIG. It is a perspective view in the suspended state of the hanging tool of Embodiment 2. It is a principal part disassembled perspective view which shows the modification of the hanging tool of Embodiment 2. FIG. FIG. 10 is an enlarged exploded perspective view of a main part of a hanging tool according to a third embodiment. (A) is a top view of the press part of Embodiment 3. FIG. (B) is a front view of the pressing part of Embodiment 3. FIG. It is a perspective view in the suspended state of the hanging tool of Embodiment 3.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Suspension tool 12 Grasp part 14 Press part 16 Enclosure part 18 (18a, 18b) Pressed part 19 Trapezoid 19a Upper base 19b Lower base 20 Space | interval 22 1st grip piece 24 2nd grip piece 22a, 24a 1st end surface 22b, 24b Second end face 22c, 24c Third end face 22d, 24d Fourth end face 22e, 24e Outer peripheral face 22f, 24f Inner peripheral face 26 Hinge 28a, 28b Pressed face 30a, 30b Groove 32 Top plate 32a Upper edge 32b Lower edge 34 Suspended upper part 34a Shaft portion 34b Rings 36a, 36b Pressing action portions 38a, 38b Pressing surfaces 40a, 40b Protruding strips 42a, 42b Opposing surfaces 44a, 44b Upper surface 46a, 46b Metal plate 48 Wire 50 Holding piece 52 Hinge 54 Wire 56 Protrusion 58a, 58b Covered Press surface 60a, 60b Press surface 70 Suspension tool 72a, 72b Pressed part 74a, 74b Side surface 75a, 5b Contact part 76a, 76b Groove 80 Suspension tool 82 Press part 84 Flat plate 86 Suspension upper part 86a Shaft part 86b Ring 88a, 88b Elongation part 91a Suspension tool 92a, 92b Continuous hole part 93 Press part 94a, 94b Pressing action part 96 Connection plate 98 Suspended upper part 98a Shaft part 98b Rings 100a and 100b Side surfaces 102a and 102b

Claims (8)

A hanging tool used when hanging a suspended object, comprising a gripping part and a pressing part,
The gripping portion includes a surrounding portion that surrounds the outer periphery between one end and the other end facing each other at a first distance around the outer periphery of the suspended object, and the one end and the other end, respectively. Provided with a pressed part,
The pressing portion includes a pair of pressing action portions that sandwich the pair of pressed portions from the outside than the interval between the pressed portions, and a suspension portion that serves as a fulcrum when the suspended object is suspended. ,
The suspension device characterized by receiving the weight of the suspended object in a suspended state, and the pressing action part pressing the pressed part in a direction in which the first distance is shortened.   The pressed portion includes a first engaging portion, the pressing action portion includes a second engaging portion, and the first and second engaging portions are in a state where the suspended object is suspended. The suspension device according to claim 1, wherein the pressing portion and the grip portion are detachably coupled to each other by being engaged with each other. Each of the pressed parts protrudes outward from the suspended object and has side surfaces that come into contact with the pressing action part, and the pair of side surfaces are separated by a second distance. Each of the side surfaces is formed with a groove or ridge as the first engaging portion,
Each of the pressing action portions includes a pressing surface in contact with the side surface, and the pair of pressing surfaces is from the distance exceeding the second distance to the distance less than (second distance−first distance). Oppositely arranged so that the interval between them narrows in a wedge shape, each of the pressing surfaces is formed with a protrusion or groove having a shape loosely fitted to the first engaging portion as the second engaging portion. The hanging tool according to claim 2, wherein the hanging tool is provided.   Each of the side surfaces of the pressed portion is formed as a flat pressed surface, and the pair of pressed surfaces has an angle formed by the pair of pressed surfaces equal to each other. The suspension tool according to claim 3, wherein the suspension tool is disposed. Each of the pressing action portions has side surfaces that come into contact with the pressed portion, and the pair of side surfaces are arranged apart from each other by a third distance, and each of the side surfaces includes the second side. A ridge or groove is formed as the engaging portion,
Each of the pressed parts includes a pressed surface that is in contact with the side surface, and the pair of pressed surfaces is from a distance exceeding (third distance + first distance) to a distance less than the third distance. Oppositely arranged so that the space between the pressed surfaces narrows in a wedge shape, and the pressed surface has a protruding line or groove that is loosely fitted to the second engaging portion as the first engaging portion. The hanger according to claim 2, wherein the hanger is formed.   The said surrounding part is divided | segmented into the 1st holding piece and 2nd holding piece which consist of a rigid body, This 1st and 2nd holding piece can be opened and closed centering on one hinge. Item 6. The hanging tool according to any one of items 1 to 5.   The hanging tool according to any one of claims 1 to 6, wherein the suspended object has a rod shape with a circular cross section.   The hanging tool according to claim 7, wherein the suspended object is a scaffold pipe.

Images