JP3166798U - Suspension bracket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hanging metal fitting which can be manufactured at low cost and has excellent strength and rigidity. SOLUTION: A U-shaped shackle body 11, a shackle pin 12 detachably attached to both ends of the shackle body 11, and a connector 13 rotatably supported by the shackle pin 12 between both ends of the shackle body 11. A connecting tool 13 having a shackle pin 12 and an orthogonal pivot hole 13b formed in the lower half portion, and a sleeve 14 rotatably attached to the pivot hole 13b and protruding from the pivot hole 13b. A bolt member 15 that is fastened to a hanging object through a sleeve 14, the sleeve 14 is sandwiched between the hanging object and the bolt head 15a, and the connector 13 is rotatable via the sleeve 14. Is provided with a bolt member 15 connected to the object to be suspended. [Selection diagram] Fig. 2

Description

  The present invention relates to a suspension fitting that can be suitably used when a suspended object such as a building material or a construction machine is suspended by a crane or the like.

  In general, as a suspension fitting used when a suspended object such as a building material or construction machine is suspended by a crane or the like, an attachment portion to the suspension object, and a hook portion that is rotatably connected to the attachment portion, And a configuration in which a suspension object is suspended by hooking a hook or eye of a suspension wire on a hook portion.

  Specifically, in order to hook a shaft-shaped fastening member as an attachment portion fixed to a suspension object, a housing rotatably supported by the shaft-shaped fastening member, and a hook or eye of a suspension wire, A suspension fitting having a U-shaped hooking member that is swingably supported by the housing has been proposed (for example, see Patent Document 1). In addition, a hanging metal fitting using a ring member as a hook member has been proposed (see, for example, Patent Document 2).

JP 2008-14385A JP 2005-513384 A

  In the hanging metal fitting described in Patent Document 1, both ends of the U-shaped hooking member are bent toward each other, and the hooking member is rotatably connected to the housing. When holding, there is a problem that due to the tensile load acting on the hooking member, both end portions of the hooking member try to expand, and the connection strength between the hooking member and the housing is lowered. In addition, since the shaft-like fastening member is rotatably supported by the housing via the rolling bearing, there is a problem that the number of parts increases and the manufacturing cost increases.

  Moreover, in the suspension metal fitting of patent document 2, since the cyclic | annular hook member is used, although the connection intensity | strength of a hook member and a housing can be improved easily, it is axially fastened via a bearing similarly to patent document 1. Since the member is rotatably supported by the housing, there is a problem in that the number of parts increases and the manufacturing cost increases accordingly.

  An object of the present invention is to provide a suspension fitting that can be manufactured at low cost and has excellent strength and rigidity.

  The suspension bracket according to the present invention includes a U-shaped shackle body, a shackle pin that is detachably attached to both ends of the shackle body, and a coupling tool that is rotatably supported by the shackle pin between both ends of the shackle body. A connecting tool having a pivot hole that is orthogonal to the shackle pin in the lower half, a sleeve rotatably mounted on the pivot hole and protruding from the pivot hole, and the sleeve inserted A bolt member fastened to the suspension object, the bolt member sandwiching the sleeve between the suspension object and the bolt head and rotatably connecting the connector to the suspension object via the sleeve; It is equipped with.

  In this suspension bracket, the shackle pins are assembled across the both ends of the shackle body so that the coupling tool is inserted in a state where the coupling tool is disposed between the ends of the shackle body, and the shackle is between the both ends of the shackle body. The connecting tool is attached to the shackle body by rotatably supporting the connecting tool on the pin. Also, a sleeve is attached to the pivot support hole of the connector, a bolt member is inserted through the sleeve, a bolt member protruding outside the connector is fastened to the object to be suspended, and the connector is attached to the object to be suspended. At this time, since the sleeve is clamped between the bolt head and the object to be suspended, the connector is clamped between the bolt head and the object to be suspended even if the bolt member is strongly tightened. Rather, the connector is rotatably supported by the sleeve.

  Then, with the suspension bracket fixed to the suspension object in this manner, the hook of the suspension wire is hooked on the shackle body, and the suspension object is lifted by a crane or the like via the suspension wire. Become. In addition, when a suspension wire having eyes formed at both ends is used as a suspension wire, the wire eye is inserted into the shackle body after the coupling tool is attached to the suspension object with a bolt member. In this state, place a connecting tool between both ends of the shackle body, insert a shackle pin into both ends of the shackle body, and connect the shackle body to the connecting tool in a rotatable manner, or attach a wire eye to the shackle body. In the inserted state, a connecting tool is arranged between both ends of the shackle body, a shackle pin is inserted into both ends of the shackle body, the shackle body is rotatably connected to the connecting tool, and then the connecting tool is a bolt member. It will be attached to the suspended object. In this state, the object to be suspended is lifted with the suspension wire connected to the suspension fitting. At this time, the connection tool rotates around the sleeve and the shackle pin as the center. The main body rotates, the tensile load acting on the suspension wire acts on the bolt member in a straight line, and the strength reduction due to the bending load acting on the suspension wire or suspension fitting is prevented. Become.

  Thus, in this suspension fitting, it is possible to assemble the connector so that it smoothly rotates with respect to the bolt member without using a bearing, so the number of parts constituting the suspension fitting is reduced as much as possible. The production cost can be greatly reduced. Further, since the connecting tool is inserted into the shackle pin and the connecting tool is rotatably connected to the shackle body, the connecting tool can be smoothly rotated with respect to the shackle pin without increasing the number of parts. Moreover, the shackle body and the shackle pin can be constructed using general-purpose shackles as they are, so that the manufacturing cost of the suspension bracket can be greatly reduced, and if these members are damaged, they can be replaced individually. Therefore, the economic burden on the user can be reduced.

  Here, it is a preferred embodiment that a head accommodating portion that accommodates a bolt head is provided continuously to the pivot hole in the connector. If comprised in this way, it can prevent that a bolt head exposes outside, can prevent a wire etc. from contacting a bolt head and being damaged, and can improve the appearance of a suspension metal fitting.

  A hook ring is formed at the end of the sleeve on the bolt head side, and a locking ring that contacts the bolt head and locks the bolt member from falling off is attached to the opening side end of the head receiving portion. You can also. If comprised in this way, the fall of a bolt member and a sleeve can be prevented at the time of the work in a high place, and the safety | security of work can be improved.

  An annular flange is formed at the end of the sleeve opposite to the bolt head, and the sleeve is mounted in the pivot support hole of the connector so that the flange is disposed between the connector and the object to be suspended. You can also If comprised in this way, the contact area of a sleeve and a suspension target object can be set widely, and the failure | damage of the suspension target object by a big press-contact force acting on the contact part with a sleeve can be prevented.

  According to the suspension metal fitting according to the present invention, the connecting tool can be assembled so as to rotate smoothly with respect to the bolt member without using a bearing, so that the number of parts constituting the suspension metal fitting is reduced as much as possible. The manufacturing cost can be greatly reduced. Further, since the connecting tool is inserted into the shackle pin and the connecting tool is rotatably connected to the shackle body, the connecting tool can be smoothly rotated with respect to the shackle pin without increasing the number of parts. Moreover, the shackle body and the shackle pin can be constructed using general-purpose shackles as they are, so that the manufacturing cost of the suspension bracket can be greatly reduced, and if these members are damaged, they can be replaced individually. Therefore, the economic burden on the user can be reduced.

Explanatory drawing of the lifting method of a suspended object using a hanging bracket Exploded perspective view of the hanging bracket Exploded perspective view of the hanging bracket Front view with the main part of the hanging bracket cut out V-V cross-sectional view of Fig. 1 FIG. 5 equivalent view of other types of suspension brackets FIG. 5 equivalent view of other types of suspension brackets

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 5, the suspension fitting 10 is formed between a U-shaped shackle body 11, a shackle pin 12 that is detachably attached to both ends of the shackle body 11, and both ends of the shackle body 11. A connecting tool 13 rotatably supported by the shackle pin 12, wherein the connecting tool 13 is formed with a pivot support hole 13d orthogonal to the shackle pin 12 in the lower half, and is rotatably supported by the pivot support hole 13d. A sleeve 14 that protrudes from a hole 13d and a bolt member 15 that is inserted through the sleeve 14 and fastened to the object 1 to be held, and sandwiches the sleeve 14 between the object 1 and the bolt head 15a. And the bolt member 15 which connects the connection tool 13 to the suspension target object 1 through the sleeve 14 rotatably is provided. When the suspension object 1 is lifted with a crane or the like using the suspension metal fitting 10, for example, as shown in FIG. 1, the suspension metal fitting 10 is attached to both ends of the upper side of the parallel side wall of the suspension object 1. Are respectively hooked on the shackle bodies 11 of the four suspension fittings 10 with the eyes 2a provided at the lower ends of the four suspension wires 2, respectively, and the upper ends of the four suspension wires 2 are secured. Is hung on a hook (not shown) of the crane, and the object 1 is lifted.

  The shackle body 11 and the shackle pin 12 are configured by a JIS standard shackle SC type. As the metal material constituting the shackle body 11 and the shackle pin 12, a metal material excellent in strength and rigidity such as chrome molybdenum steel, for example, JIS standard SCM435 can be suitably used. The shackle body 11 is composed of a U-shaped main body portion 11a and ring-shaped connecting head portions 11b integrally formed at both ends of the main body portion 11a. Both connecting heads 11b are formed in a ring shape centered on a straight line parallel to a straight line connecting both ends of the main body part 11a, and a screw hole 11c is formed in the center of one connecting head 11b. A through hole 11d is formed coaxially with the screw hole 11c at the center of the coupling head 11b. A screw portion 12a that can be screwed into the screw hole 11c is formed at the distal end portion of the shackle pin 12, and a knob portion 12b for rotating the shackle pin 12 is formed at the proximal end portion of the shackle pin 12. An attachment hole 12c for attaching a string or a chain for preventing the drop is formed in 12b. The shackle pin 12 is inserted into the through-hole 11d of the shackle body 11 and the knob portion 12b is picked and the screw portion 12a is screwed into the screw hole 11c of the shackle body 11 so that the shackle body 11 It is assembled to both ends so as to be detachable.

  As the shackle body 11 and the shackle pin 12, an SD type, BC type, BD type, or the like other than the JIS standard shackle SC type can also be adopted. Further, as in JIS standard shackle SA type or BA type, a through hole is formed instead of the screw hole 11c of the shackle body 11, and a pin hole is formed at the end of the shackle pin 12 instead of the screw portion 12a. The shackle pin 12 is inserted into both through-holes, and a split pin is attached to the pin hole at the tip, so that the shackle pin 12 can be detachably attached to the shackle body 11, or a JIS standard shackle SB type or the like As in the BB type, a through hole is formed instead of the screw hole 11c of the shackle body 11, the shackle pin 12 is inserted into both the through holes, and a nut is screwed into the screw portion 12a at the tip of the shackle pin 12. Thus, it is possible to adopt a configuration in which the shackle pin 12 is detachably attached to the shackle body 11. Furthermore, the shackle pin 12 can be detachably provided to the shackle body 11 by crimping both ends of the shackle pin 12. Furthermore, a shackle having a configuration other than the general-purpose shackle defined by the JIS standard may be employed.

  The coupling tool 13 includes a cylindrical coupling portion 13a disposed between the coupling heads 11b of the shackle body 11, and a cylindrical pivoting portion that is integrally provided below the coupling portion 13a and orthogonal to the coupling portion 13a. 13b, and is made of the same metal material as the shackle body 11. A connecting hole 13c through which the shackle pin 12 is rotatably inserted is formed in the connecting part 13a, and a pivotal support hole 13d for accommodating the sleeve 14 and a head accommodating part 13e for accommodating the bolt head 15a are formed in the pivotal support part 13b. A step 13f is formed at the boundary between the pivot hole 13d and the head accommodating portion 13e. The length of the sleeve 14 is set slightly longer than the length of the pivot hole 13d, the sleeve 14 is loaded into the pivot hole 13d, the bolt member 15 is inserted into the sleeve 14, and the bolt member 15 is suspended. When the sleeve 14 is clamped between the bolt head 15a and the object 1 to be suspended, the connector 13 is rotatably supported by the sleeve 14.

  The bolt member 15 is composed of a well-known hexagon socket bolt. However, a well-known hexagon bolt can also be employed, or a half screw bolt in which a threaded portion is formed only at a tip portion fastened to the object 1 to be suspended can be employed.

Next, a method for lifting the lifting object 1 using the lifting bracket 10 will be described.
First, in a state where the eye 2a of the suspension wire 2 is hooked on the shackle body 11, the connecting tool 13 is disposed between the connecting heads 11b of the shackle body 11, as shown in FIG. The shackle pin 12 is inserted into the through hole 11d of the shackle body 11 so as to pass through the hole 13c, and the screw portion 12a of the shackle pin 12 is screwed into the screw hole 11c of the shackle body 11, so that the connecting head of the shackle body 11 is connected. The connecting tool 13 is rotatably supported by the shackle pin 12 between the portions 11b, and the connecting tool 13 and the suspension wire 2 are attached to the shackle body 11.

  Next, the sleeve 14 is loaded into the pivot hole 13 d of the connector 13, the bolt member 15 is attached to the connector 13 so that the bolt member 15 is inserted into the sleeve 14, and the bolt member that protrudes outside the connector 13. 15 is fastened to the suspension object 1 and the connector 13 is attached to the suspension object 1. At this time, since the sleeve 14 is clamped between the bolt head 15a and the suspended object 1, the connecting tool 13 is clamped between the bolt head 15a and the suspended object 1 even if the bolt member 15 is strongly tightened. In other words, the connector 13 is rotatably supported by the sleeve 14.

  In this way, the suspension metal fittings 10 are sequentially fixed to the upper end portions of the parallel side surface of the object 1 to be suspended, and the eye 2a at the other end of the unillustrated suspension wire 2 is hooked on the hook of the crane. The object 1 is lifted by a crane or the like. At this time, the connecting tool 13 rotates around the sleeve 14, and the shackle body 11 rotates around the shackle pin 12 to act on the suspension wire 2. The load acts on the bolt member 15 in a straight line, and the strength reduction due to the bending load acting on the suspension wire 2 and the suspension fitting 10 is prevented. However, it is also possible to connect the shackle body 11 to the connector 13 with the shackle pin 12 by hooking the eye 2a of the suspension wire 2 on the shackle body 11 after attaching the connector 13 to the object 1 to be suspended. It is. When a hook is provided at the end of the suspension wire 2, the suspension fitting 10 is assembled to the suspension object 1, and then the hook of the suspension wire 2 is attached to the shackle body 11 of the suspension fitting 10. And the object 1 to be suspended can be lifted by a crane or the like.

  In this way, in this suspension metal fitting 10, the connecting tool 13 can be assembled so as to rotate smoothly with respect to the bolt member 15 without using a bearing. Therefore, the number of parts constituting the suspension metal fitting 10 can be reduced as much as possible. The production cost can be greatly reduced by reducing the number of the manufacturing costs. Further, since the connecting tool 13 is inserted into the shackle pin 12 and the connecting tool 13 is rotatably connected to the shackle body 11, the connecting tool 13 can be smoothly rotated with respect to the shackle pin 12 without increasing the number of parts. It will be a thing. In addition, since the shackle body 11 and the shackle pin 12 can be configured by using general-purpose shackles as they are, the manufacturing cost of the suspension metal fitting 10 can be greatly reduced. Since it can be exchanged, the economic burden on the user can be reduced.

Next, another embodiment in which the configuration of the suspension fitting 10 is partially changed will be described. The same members as those in the above embodiment are denoted by the same reference numerals and detailed description thereof is omitted.
(1) Instead of the sleeve 14, a sleeve 14 </ b> A in which a flange portion 20 is formed at the end of the object to be suspended 1 may be provided as in the suspension fitting 10 </ b> A shown in FIG. 6. If comprised in this way, the contact area of the sleeve 14A and the suspension target object 1 can be set large, and the breakage of the suspension target object 1 by the sleeve 14A being press-contacted can be prevented.

(2) Instead of the sleeve 14 as in the suspension fitting 10B shown in FIG. 7, a sleeve 14B having a hook-shaped drop-off locking part 21 formed at the end on the bolt head 15a side is provided, and the head receiving part It is also possible to detachably fix a locking ring 22 made of a C-ring or the like that contacts the bolt head 15a and locks the bolt member 15 from falling off at the end of the opening 13e. In this case, the bolt member 15 and the sleeve 14B can be prevented from falling off from the connector 13, so that the safety of work at a high place can be improved.

  The embodiment of the present invention has been described above. However, the present invention is not limited to the above-described embodiment, and it goes without saying that the configuration can be changed without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 Suspension object 2 Suspension wire 2a Eye 10 Suspension metal fitting 11 Shackle body 11a Main body part 11b Connection head part 11c Screw hole 11d Through hole 12 Shackle pin 12a Screw part 12b Knob part 12c Attachment hole 13 Connection tool 13a Connection part 13b Pivoting portion 13c Connecting hole 13d Pivoting hole 13e Head receiving portion 13f Step portion 14 Sleeve 15 Bolt member 15a Bolt head portion 10A Suspension metal fitting 14A Sleeve 20 Flange portion 10B Suspension metal fitting 14B Sleeve 21 Dropping engagement portion 22 Engagement ring

Claims (4)

A U-shaped shackle body,
A shackle pin removably attached across both ends of the shackle body;
A connecting tool rotatably supported by a shackle pin between both ends of the shackle body, wherein the connecting tool is formed with a pivot support hole orthogonal to the shackle pin in the lower half part,
A sleeve mounted rotatably in the pivot hole and protruding from the pivot hole;
A bolt member that is inserted through the sleeve and fastened to the object to be suspended, the sleeve being sandwiched between the object to be suspended and the head of the bolt, and the connection object being rotatably supported via the sleeve. A bolt member connected to
A hanging metal fitting characterized by comprising.   The suspension metal fitting according to claim 1, wherein a head accommodating portion that accommodates a bolt head is provided in the connector so as to be connected to the pivot hole.   A drop-off prevention part is formed to protrude outwardly at the bolt head end of the sleeve, and the bolt member is abutted against the bolt head at the opening-side end of the head receiving part to lock off the bolt member. The suspension metal fitting according to claim 1 or 2, wherein a locking ring is attached. An annular flange is formed at the end of the sleeve opposite to the bolt head, and the sleeve is mounted in the pivot support hole of the connector so that the flange is disposed between the connector and the object to be suspended. The suspension metal fitting according to any one of claims 1 to 3.

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