Connector

Abstract

To provide a connector which can inexpensively and efficiently connect a gripped member such as a pipe and an attached member having a plane portion.SOLUTION: In a connector for connecting a gripped member 1 by the opening and closing of a gripping member 2, the gripping member 2 is supported by a rotating shaft 4 via a base body 3, and is made to turn on a plane member 5 and on a plane portion 80 of an attached member 8, and a connecting member 6 is penetratingly provided at the base body 3, the plane member 5 or the like. The connecting member 6 has an idling prevention mechanism at a head part 60a side inserted from the gripping member 2 side, the gripping member 2 is closed and turns around the rotating shaft 4 while abutting on the plane member 5 or the like by tightening the connecting member 6, and the gripped member 1 is gripped by the gripping member 2 and the base body 3 so as to connectable.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] This invention relates to a connector for connecting to a pipe, such as a synthetic resin-coated bonded steel pipe, and more particularly to a connector used to connect a member having a flat portion to the pipe. [Background technology]

[0002] Conventionally, the pipe holder 1 disclosed in the following Patent Document 1 comprises a bracket 2, a jaw member 3, a nut member 4, and a tightening bolt 5. The tightening bolt 5 that passes through the bracket 2 is screwed into the nut member 4, and by tightening this, the pipe P is tightened between the bracket 2 and the jaw member 3, and the bracket 2 is fixed to the pipe P together with the supported object M (see the claims, etc. of the same Document 1). A connector as shown in Fig. 10 has also been used in the past. This connector clamps a pipe (not shown) between two halves a and b, each cut into a dovetail shape, and connects them with a bolt d. One of the halves, b, is provided with a wedge-shaped protrusion c, which provides strength against torsion. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2012-251576 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the tube gripping tool of Patent Document 1, the tightening bolt is inserted into a bolt insertion hole formed in the support plate of the bracket, but if the neck length of the tightening bolt is too long, it will come into contact with the tube and cannot be gripped sufficiently. In addition, the attachment to the supported object must be joined with a bolt other than the tightening bolt, which is time-consuming to attach. In addition, a long hole must be provided in the bracket to rotate the jaw member around the pivot, and the bracket and the jaw member are joined by a pivot pin as well as the pivot pin, which is located at both the left and right ends of the nut member, making the configuration difficult to manufacture. Furthermore, when clamping the tube, the jaw members must first be rotated in the opening direction, the tube is brought into contact with the jaw members, and then the jaw members must be rotated in the closing direction, which may cause interference depending on the location of the flange member that contacts the tube, making it impossible to grip sufficiently.

[0005] Furthermore, with conventional connectors as shown in Figure 10, it is difficult to position them properly, and because the bolts are joined by a dovetail-like engagement, deformation occurs due to the strength of the bolt tightening, which not only reduces installation accuracy and ease of work, but also makes them easy to lose as they can be disassembled into two half-pieces and a bolt. When combining with other parts, the flat surface needs to be welded, which is inefficient because it requires a design drawing for welding each time. In other words, the two half-split parts must sandwich the part to be clamped (a pipe), then the pipe is connected with a bolt, and then the flat surface of the other part is welded, which requires a lot of installation work. Furthermore, problems have been pointed out, such as the bolts not fitting together if the welding is not done with precision, and these are issues that need to be resolved.

[0006] Therefore, the object of the present invention is to improve work efficiency and reduce manufacturing costs by using connecting members such as bolts and nuts as a means for connecting clamped members such as pipes, thereby eliminating the need for coil springs and rubber and reducing costs by reducing the number of parts. Moreover, the present invention provides a connector that has a simple structure and can prevent the bolt head from spinning freely, and that has a simple clamping shape instead of a dovetail-like engagement, thereby reducing manufacturing costs. [Means for solving the problem]

[0007] As a means for solving the above problems, the invention described in claim 1 is a connector that connects a clamped member 1 by opening and closing a clamping member 2, The clamping member 2 is The rotating shaft 4 is supported by the base 3 and rotated on the planar member 5 and / or the planar portion 80 of the mounting member 8. a coupling member (6) is provided penetrating the base (3) and the planar member (5) and / or the planar portion (80) of the attached member (8), and a spin prevention mechanism is provided on a head (60a) side of the coupling member (6) that is inserted from the clamping member (2), By tightening the connecting member 6, the clamping member 2 is rotated around the rotation axis 4 while being in contact with the planar member 5 or the planar portion 80 of the attached member 8, and the clamping member 2 and the base 3 are configured to clamp the clamped member 1 and be freely connectable. This is a connector characterized by the above.

[0008] In the invention described in claim 2, the tip portion 21 of the clamping member 2 has A clamping guide portion 22 is formed so as to avoid interference between the clamping members 2 when the clamping members 2 are closed and rotated to clamp the clamped member 1; The connector according to claim 1, characterized in that:

[0009] The invention described in claim 3 has the following features: The curved portions 23 and 31 are formed so as to be capable of enclosing the clamped member 1 made of a pipe. The clamping member 2 and the base body 3 are disposed facing each other such that the side surface portion 20 of the clamping member 2 is on the outside of the side surface portion 30 of the base body 3; A rotating shaft 4 is provided at the tip of both side surface portions 20 of the clamping member 2 and near the bottom surface portion 34 of both side surface portions 30 of the base body 3. The connector according to claim 1, characterized in that:

[0010] The invention described in claim 4 is characterized in that the clamped member 1 clamped between the clamping member 2 and the base body 3 is The conveyor 1 is made of pipes and is connected to a conveyor 7 assembled from the pipes 1; A connector as described in claim 1, 2 or 3, characterized in that: Effect of the Invention

[0011] The connector of the present invention provides the following advantages. (1) The bolt, which is the connecting member, is prevented from spinning freely while the nut is tightened, so the connection can be made without the trouble of installation. Furthermore, it is no longer necessary to perform major processing on the clamping member and the base body, which has led to a reduction in manufacturing costs. (2) The use of conventional polygonal bolts and nuts for the connecting members not only increased versatility, but also enabled the use of power tools, improving work efficiency. In addition, the ability to prevent the bolts from rotating allowed for easy installation without the need for special shapes, and further reduced manufacturing costs and man-hours. (3) By providing a clamping guide portion at the tip of the clamping member, the clamping member can be rotated in the closing direction without interference when clamping the clamped member, making it possible to efficiently attach the clamped member to the attached member. (4) The connecting member is configured so that the pipe and the attached member can be attached simultaneously, which simplifies installation and improves workability. (5) By providing the rotation axis at the tip of both sides of the clamping member and near the bottom of both sides of the base, which is offset from the center between the opposing base and clamping member, the clamping member can be opened and closed via the base, which reduces the number of parts. Furthermore, by passing the connecting member through the approximate center between the opposing base and clamping member, a strong clamping force can be generated by opening and closing the clamping member. [Brief description of the drawings]

[0012] [Figure 1] FIG. 2 is a perspective view showing the connector of the present invention. [Diagram 2]FIG. 2 is an exploded perspective view of the connector of FIG. 1. [Diagram 3] The connector is shown from multiple angles, with (A) being a plan view, (B) being a left side view, (C) being a front view, (D) being a right side view, and (E) being a bottom view. [Figure 4] FIG. 13 is a plan view showing an example in which a hexagonal bolt is used as a connecting member. [Diagram 5] FIG. 13 is a perspective view showing how to clamp a ribbed pipe. [Figure 6] FIG. 11 is a perspective view showing how to clamp a double pipe. [Figure 7] 11A to 11E are front views showing in chronological order how a connector holds a member to be held. [Figure 8] FIG. 13 is a perspective view showing an example of attaching the connector to the transport cart. [Figure 9] FIG. 13 is a perspective view showing an example of how a connector is attached to a panel. [Figure 10] FIG. 11 is a perspective view showing a conventional example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] The connector of the present invention connects a clamped member 1 by opening and closing a clamping member 2, and is preferably implemented as a connector that is connected to a transport cart 7 constructed of a pipe 1 (clamped member) as shown in Figure 8, to which an attached member 8 such as a stopper can be freely attached. In this embodiment, the clamped member 1 is a synthetic resin-coated steel pipe, but it may also be a steel pipe without a resin coating, lightweight structural pipe material made of aluminum, synthetic resin or other materials, or even a solid lightweight structural bar material made of the various materials mentioned above.

[0014] The connector shown in Figs. 1 to 7 will now be described in detail. In this connector, the clamping member 2 is supported by a rotating shaft 4 via a base 3 and rotated on a planar member 5 (which may also refer to the planar portion 80 of a member to be attached 8). By fastening a connecting member 6 penetrating the base 3 and the planar member 5, the clamping member 2 closes and rotates around the rotating shaft 4 while being in contact with the planar member 5, and the clamping member 2 and base 3 clamp the member to be clamped 1, allowing for free connection (see FIG. 7). In this embodiment, steel is used as the material for the connector, but it may also be stainless steel or aluminum. Further, although the planar member 5 in this embodiment is substantially rectangular, the shape is not limited thereto, and the planar member 5 may be substantially square or circular, and can be appropriately changed depending on the attached member 8 (see FIG. 8).

[0015] The clamping member 2 is configured to have an inwardly arc-shaped opening formed by a back surface 25 and side surfaces 20 on both the left and right sides, and is U-shaped when viewed in a plan view. Through holes 20a are drilled at the tips of both side surfaces 20 away from the back surface 25 (see Figs. 1 to 3). A straight clamping guide portion 22 is formed at the tip 21 of the side surface portion 20 of the clamping member 2 (see FIG. 3C, etc.), and the clamping member 2 can be moved in the closing direction without interference between the members when clamping the clamped member 1. Note that the clamping force does not change even if a clamping guide portion (reference number omitted) similar to that of the clamping member 2 is provided at the tip of the side surface portion 30 of the base 3 described below.

[0016] The base 3 is formed with a back surface portion 33, a bottom surface portion 34, and side surface portions 30 on both the left and right sides, which also open inward in an arc shape, and is U-shaped when viewed in a plan view, with through holes 30a drilled in the side surface portions 30 near the bottom surface portions 34. The clamping member 2 and base 3 are disposed facing each other such that the side surface portions 20 of the clamping member 2 are on the outside of the side surface portions 30 of the base 3 (see FIG. 3A). Therefore, the rotating shaft 4 is inserted through the through hole 20a of the clamping member 2, which is aligned with the through hole 30a of the base body 3. This rotating shaft 4 is caulked, but it can also be joined by welding or with bolts and nuts. In addition, a so-called blind bolt hole 35 is drilled in the center of the bottom surface portion 34 of the base body 3.

[0017] The pipe contact portions of the clamping member 2 and base body 3 are formed at curved portions 23, 31, and the inner diameters of the inner peripheral surfaces of the clamping member 2 and base body 3 are approximately the same as the outer diameter of the pipe 1 which is the member to be clamped. The clamping member 2 and the base 3 clamp at least half of the circumference of the pipe 1 on the planar member 5 side, making it possible to clamp even a pipe 1 that is not circular in cross section, such as the ribbed pipe 1 shown in Figure 5 or the double pipe 1 shown in Figure 6. Furthermore, a protrusion 24 and a protrusion 32 are provided facing inward on the curved portion 23 of the side surface portion 20 of the clamping member 2 and the curved portion 31 of the side surface portion 30 of the base body 3, respectively. The wedge-shaped protrusions 24, 32 in this embodiment extend in the axial direction in order to hold down the upper portion of the pipe 1, which is the clamped portion, and firmly connect the pipe 1. As a result, the protrusions 24, 32 have high resistance to twisting, pulling, and extraction, and can firmly connect the pipe 1.

[0018] The connecting member 6 is composed of a bolt 60 and a nut 61, and in this embodiment, a circular bolt is used. The circular bolt is inserted from the front end of the clamping member, and the head 60a is welded in place. The purpose of the welding is to provide a rotation stop mechanism to the bolt 60 and to prevent it from spinning freely (stopping rotation). Incidentally, bolt 60 does not have to be limited to a circular bolt. If a polygonal bolt (such as a hexagonal bolt) with a two-face width slightly narrower than the inner surface width of base 3 as shown in FIG. 4 is used, side portion 30 of base 3 will act as an anti-rotation mechanism, acting as a stopper for head 60a of polygonal bolt 60, and bolt 60 will not rotate freely without the need for welding. The through-hole 50 of the planar member 5 through which the bolt 60 is inserted is a blind hole together with the bolt hole 35 of the base 3 (bottom surface portion 34) (FIG. 2). In addition, the rotating shaft 4 is provided near the tip of both side portions 20 of the clamping member 2 and near the bottom portion 34 of both side portions 30 of the base 3 so that the bolt 60 can be inserted without interference. Due to the above-mentioned configuration of the connector, the clamping member 2 is rotatable around the rotation axis 4, The bolt 60 of the connecting member 6 is provided with an anti-spinning mechanism on the side of the head 60a inserted from the clamping member 2 side, and the clamping member 2 is rotated in the closing direction by screwing in a nut 61 (see FIG. 7).

[0019] The operation of the connector described above will be explained with reference to FIG. 7 as a time sequence up to the point where it is connected to the pipe 1 (held member). (1) As shown in FIG. 7A, with the nut 61 loosened, the connector is brought close to the pipe 1 to be connected, and the pipe 1 and the base body 3 are brought into contact with each other. (2) As shown in Fig. 7B, when the nut 61 is tightened, the end of the lower bottom portion 26 of the clamping member 2 comes into contact with the planar member 5, and the clamping member 2 rotates in the closing direction around the rotation axis 4. At the same time, the planar member 5 moves in a direction approaching the bottom surface portion 34 of the base 3. When tightening the nut 61, no special tool is required, and it can be tightened with a known tool. (3) As shown in FIG. 7C, clamping guide portion 22 formed on clamping member 2 moves in the closing direction so as to follow the outer periphery of pipe 1. (4) As shown in FIG. 7D, the clamping force can be increased by further tightening the nut 61 to connect the pipe 1 so that it bites into the protrusions 24, 32. (5) As shown in FIG. 7E, when the bottom surface 34 of the base 3 and the planar member 5 come into contact with each other, and at the same time the lower bottom portion 26 of the clamping member comes into contact with the planar member 5, the connection with the pipe 1 is completed. When removing the connector from the pipe 1, the nut 61 can be loosened with a tool to separate it from the planar member 5, and then the connector can be separated from the clamping member 2 and the base 3, thereby releasing the connector from the pipe 1.

[0020] The case of attaching the device to the transport platform 7 shown in FIG. 8 will be described. This is preferably implemented when connecting a transport cart 7 constructed of pipes 1 to a mounting member 8 (stopper). The planar member 5 prevents deformation of the mounting member 8 and a decrease in the clamping force of the pipes 1. Note that the transport cart 7 shown in Fig. 8 does not show the surface on which the transported object is loaded. Although the transport cart 7 is shown as a crawler type, it may be a wheeled type. The installation can be performed using known tools without requiring special tools. Also, since welding is not required, installation can be performed without special skills. The flat surface 80 of the attached member 8 is attached by being sandwiched between the flat surface member 5 and the nut 61 (see FIG. 3). If the bottom surface of the clamping member 2 and the flat surface 80 of the attached member 8 are not in full contact with each other, a local load may be applied when a load is applied, resulting in damage, and the flat surface member 5 is provided to avoid this damage. On the other hand, if the flat surface portion 80 of the attached member 8 is sufficiently wide and there is no risk of damage, the flat surface member 5 may be unnecessary. Also, for example, if the head length of the hexagonal bolt 60 is long, there is no effect on the installation even if the thickness of the attached member 8 changes. This is because the hexagonal bolt 60 is inserted from the clamping member 2 side, and there is no obstacle at the end of the insertion. Conversely, if you try to insert the hexagonal bolt 60 from the side of the attached member 8 (the side of the flat member), the pipe 1 becomes an obstacle and reliable attachment is not possible. Also, even if the head length of the hexagonal bolt 60 is just the right length, if the flat portion 80 of the attached member 8 is thick, sufficient attachment is not possible.

[0021] It is also possible to attach a panel 8' (attached member) as shown in FIG. With conventional connectors, the panel must be held by hand when attaching it, and because tools are required, installation takes time. In addition, it is difficult to create a flat surface, and there is a risk of the panel becoming curved. In this regard, by using the connector of this embodiment, the nut 61 described above is replaced with a knob 61', which allows for hand tightening without the need for tools. Moreover, since it is only necessary to hold the knob 61' without holding the panel 8' with one's hand, safe installation and removal is possible even when the panel 8' is large. A specific installation method involves first attaching the connector and knob 61' to the panel 8', bringing the pipe 1 close to the connector while holding the knob 61' in the hand, and rotating the knob 61' to rotate the clamping member 2 in the closing direction to clamp the pipe 1.

[0022] Although the embodiments have been described above with reference to the drawings, it should be noted that the present invention is not limited to the illustrated examples, and includes the range of design modifications and application variations that would normally be made by a person skilled in the art, provided that the scope does not deviate from the technical concept of the present invention. [Explanation of symbols]

[0023] 1 Clamped member (pipe) 2 Holding member 20 Side part 20a through hole 21 Tip 22 Clamping guide part 23 Curved section 24 protrusion 25 Rear part 26 Lower base 3 Base 30 Side part 30a through hole 31 Curved section 32 protrusion 33 Back part 34 Bottom part 35 Bolt holes 4 Rotation Axis 5 Planar members 50 through holes 6 Connecting members 60 Volts 60a Head 61 Nut 61' Knob 7 Transport cart 8 Mounting material 8' Panel 80 Plane section

Claims

1. A connector that connects clamped members by opening and closing a clamping member, The clamping member is The rotary shaft is supported by the base and rotated on the planar member and / or the planar portion of the attached member; a coupling member is provided penetrating the base and the planar member and / or the planar portion of the attached member, and an anti-idling mechanism is provided on a head side of the coupling member that is inserted from the clamping member side, When the connecting member is tightened, the clamping member closes and rotates around a rotation axis while being in contact with a flat portion of the planar member or the attached member, and the clamping member and the base body are configured to clamp the clamped member and be freely connectable. A connector characterized by the above.

2. The tip of the clamping member is provided with a clamping guide portion is formed for clamping the clamped member while avoiding interference between the clamping members when the clamping members close and rotate to clamp the clamped member; 2. The connector according to claim 1 .

3. The clamping member and the base body are A curved portion capable of holding a clamped member made of a pipe is formed; the clamping member and the base are disposed opposite each other such that a side surface of the clamping member is located outside a side surface of the base; a rotation shaft is provided at the tip of each side surface of the clamping member and at each side surface of the base body near the bottom surface; 2. The connector according to claim 1 .

4. The clamped member clamped between the clamping member and the base body is It is made of pipes and is connected to a transport cart assembled from the pipes; 4. A connector as claimed in claim 1, 2 or 3, characterized in that

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