JP7328926B2 - Attachment jig for connecting fittings - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig for attaching connecting fittings, and more particularly to a jig for attaching connecting fittings used when connecting earth retaining members having flanges such as liner plates to each other.

For example, one of the construction methods of vertical shafts is the liner plate construction method. In the liner plate construction method, a liner plate is suspended in an excavated pit using a crane or the like, and the suspended liner plates are connected to each other to form an earth retaining shoring.

At this time, for example, to vertically connect the liner plates, it is common to pass bolts through holes formed in the lower flange of the upper liner plate and the upper flange of the lower liner plate, respectively, and fasten them with nuts.

However, since there are a large number of connecting points using bolts and nuts, it takes a great deal of time and effort to connect the liner plates.

Therefore, Patent Document 1 discloses a liner plate connecting fitting for solving the above problem. Hereinafter, this liner plate connecting fitting will be referred to as a conventional connecting fitting, and will be described with reference to the drawings.

As shown in FIG. 22, the conventional connecting fitting comprises a connecting fitting main body 21, an insertion portion 22 formed at one end of the connecting fitting main body 21, and a holding portion 23 formed at the other end of the connecting fitting main body 21. It is

The insertion portion 22 is inserted into a hole 28 formed in the overlapping upper and lower flanges 25, 27 of the upper and lower liner plates 24, 26, and the clamping portion 23 is inserted into the overlapping upper and lower flanges 25, as will be described later. , 27.

In order to connect the upper and lower liner plates 24 and 26 with conventional connecting fittings, holes 28 are formed in the lower flange 27 of the upper liner plate 24 and the upper flange 25 of the lower liner plate 26, respectively, as shown in FIG. After that, the connecting metal fitting body 21 is rotated around the insertion part 22 in the direction of the arrow in FIG. As a result, the upper and lower flanges 25 and 27 are sandwiched between the holding portions 23, and the upper liner plate 24 and the lower liner plate 26 are connected.

Japanese Utility Model Laid-Open No. 3-69093

According to the above-described conventional connecting fitting, the upper liner plate 24 and the lower liner plate 26 are connected by rotating the connecting fitting main body 21 and sandwiching the upper and lower flanges 25 and 27 between the clamping portions 23 . , had the following problems.

Since the insertion portion 22 of the connecting fitting main body 21 is simply inserted into the holes 28 formed in the upper and lower flanges 25 and 27, when a separating force acts between the upper liner plate 24 and the lower liner plate 26, Otherwise, only the clamping portion 23 prevents the separation, and as a result, a strong connecting force between the upper liner plate 24 and the lower liner plate 26 cannot be obtained.

The above is the case where the liner plates are connected vertically, but the same problem arises when the liner plates are connected horizontally.

Accordingly, the inventors of the present application have developed a connecting fitting for solving the above problem. Hereinafter, this connecting fitting will be referred to as an improved connecting fitting or a connecting fitting main body 1, and will be described with reference to the drawings.

13 to 21, reference numeral 1 denotes an improved plate-like connecting fitting (connecting fitting main body 1), for example, a reinforcing portion 1a is formed by embossing (see FIG. 21). The number and formation positions of the reinforcing portions 1a are not limited to this example.

Reference numeral 2 denotes an insertion portion formed by bending one end of the connecting metal fitting main body 1 toward one surface side (in this example, the lower surface side) of the connecting metal fitting main body 1 in an L shape. The distal end portion 2a of the insertion portion 2 abuts on the peripheral rear surface of the hole 8 when the insertion portion 2 is inserted into the hole 8 formed in the overlapping upper and lower flanges 6 and 4, which will be described later. The peripheral rear surface is the lower surface of the overlapping flanges when the liner plates are vertically connected, and the side surfaces of the overlapping flanges when the liner plates are horizontally connected.

17, by forming the leading end portion 2a to be inclined upward, the insertion portion 2 can be inserted into the hole 8, and as will be described later, the clamping portion 3 has upper and lower flanges 6, 6 and 6. 4, the connecting force between the upper and lower flanges 6 and 4 can be strengthened by the principle of leverage.

Reference numeral 3 denotes a clamping portion formed by bending the other end of the connecting metal fitting main body 1 toward one surface side (in this example, the lower surface side) in a U shape. By rotating the connecting fitting main body 1 about the insertion part 2 inserted into the hole 8 formed in the upper and lower flanges 6 and 4, the upper and lower flanges 6 and 4 are overlapped with each other. enters and thus the clamping part 3 clamps the overlapping upper and lower flanges 6,4.

A bent portion 3 a of the clamping portion 3 is formed obliquely with respect to the longitudinal direction of the connecting fitting main body 1 . The reason for this is that if the bent portion 3a is formed obliquely with respect to the longitudinal direction of the connecting fitting main body 1, when the overlapping upper and lower flanges 6 and 4 enter the clamping portion 3, the bent portion 3a will overlap. In addition, since the edges of the lower flanges 6 and 4 are parallel to each other, the clamping force is increased and the amount of protrusion of the metal fitting body 1 toward the inside of the liner plate when the metal fitting body 1 is rotated is reduced. This is because, as a result, it is possible to reduce the possibility of hindrance to work.

The opening width L1 (see FIG. 16) of the entrance of the holding portion 3 is formed narrower than the plate thickness of the overlapping upper and lower flanges 6 and 4 . As a result, the overlapping upper and lower flanges 6 and 4 can be held more firmly.

In addition, the entrance edge portion 3b of the clamping portion 3 is widened. As a result, the overlapping upper and lower flanges 6 and 4 can be smoothly inserted into the holding portion 3 .

Furthermore, as shown in FIG. 14, the width L2 of the holding portion 3 is formed wider than the width L3 of the insertion portion 2. As shown in FIG. As a result, the overlapping upper and lower flanges 6 and 4 can be held more firmly.

According to the improved connecting fitting configured in this manner, the upper liner plate 5 having the lower flange 4 and the lower liner plate 7 having the upper flange 6 can be connected to each other in the following manner.

First, as shown in FIG. abut on.

Next, the connecting fitting main body 1 is rotated in the direction of arrow A in FIG. This causes the overlapping upper and lower flanges 6 and 4 to enter the clamping portion 3 and thus the clamping portion 3 clamps the overlapping upper and lower flanges 6 and 4 . At this time, since the opening width L1 of the entrance of the clamping portion 3 is narrower than the plate thickness of the overlapping upper and lower flanges 6, 4, the overlapping upper and lower flanges 6, 4 can be clamped more firmly. can. In addition, since the inlet edge 3b of the clamping portion 3 is widened, the overlapped upper and lower flanges 6 and 4 can be inserted into the clamping portion 3 smoothly.

As described above, the improved connecting fitting vertically connects the upper liner plate 5 and the lower liner plate 7 .

The above is the case of connecting the liner plates vertically, but as shown in FIG. 20, the same applies to the case of connecting the liner plates horizontally. That is, when connecting the upper liner plate 5 to the left and right, as shown in FIG. The connector body 1 is rotated in the direction of arrow B in FIG. As a result, the overlapping left and right flanges 9 and 10 enter the clamping portion 3 and are clamped.

In this way, the improved connecting fittings can connect the upper liner plate 5 from side to side.

As described above, according to the improved connecting fitting, the following effects are brought about.

After inserting the insertion part 2 of the connecting metal fitting main body 1 into the hole 8 formed in the overlapping upper and lower flanges 6 and 4, the upper and lower liner plates 5 and 7 are separated by simply rotating the connecting metal main body 1. Since the liner plates can be connected to each other, the liner plates can be connected to each other easily and in a short time compared to bolts and nuts.

In addition, at one end of the connecting fitting main body 1, an insertion portion 2 is provided whose tip portion 2a abuts against the peripheral rear surface of the hole 8 formed in the overlapping upper and lower flanges 6 and 4, thereby connecting the upper and lower portions. When a separating force acts on the liner plates 5 and 7, the holding portion 3 and the insertion portion 2 can prevent the separation, so that the connecting force between the liner plates becomes stronger.

Further, by forming the tip portion 2a of the insertion portion 2 to be inclined upward, when the insertion portion 2 is inserted into the hole 8 and the upper and lower flanges 6 and 4 overlapped with the holding portion 3 are sandwiched, the principle of leverage is applied. , the connecting force of the overlapping upper and lower flanges 6 and 4 can be strengthened.

Further, by forming the bent portion 3a of the clamping portion 3 obliquely with respect to the longitudinal direction of the connecting fitting main body 1, when the overlapping upper and lower flanges 6 and 4 enter the clamping portion 3, the clamping portion is bent. 3 and the edges of the overlapping upper and lower flanges 6 and 4 are parallel to each other. , 7 of the connecting fitting body 1 can be reduced.

Further, since the opening width L1 of the entrance of the clamping portion 3 is narrower than the plate thickness of the overlapping upper and lower flanges 6, 4, the overlapping upper and lower flanges 6, 4 can be clamped more firmly. .

Further, by widening the entrance edge 3b of the clamping portion 3, the overlapped upper and lower flanges 6 and 4 can be inserted into the clamping portion 3 more smoothly.

Further, by forming the width L2 of the clamping portion 3 to be wider than the width L3 of the insertion portion, the overlapped upper and lower flanges 6 and 4 can be clamped more firmly.

Also, when the liner plates are connected horizontally, the same effect as when the liner plates are connected vertically can be obtained.

Of course, the improved connecting fitting described above can be used for connecting earth retaining members having flanges other than the liner plate.

Although the improved connecting fitting provides the effects described above, the following effects are desired.

In order to connect the liner plates to each other, after attaching the improved connecting metal fittings to the overlapping flanges, the improved connecting metal fittings are hit with a tool such as a hammer to rotate the improved connecting metal fittings, but at this time, the impact sound is generated. Since it occurs, it interferes with the connection work. In particular, when constructing a vertical shaft by the liner plate construction method, the space becomes closed and the sound reverberates.

SUMMARY OF THE INVENTION Accordingly, the object of the present invention is to improve the work environment and to facilitate and shorten the installation of the connecting fittings, because the connecting fittings used for connecting earth retaining members such as liner plates are not hit. To provide a jig for mounting a connecting fitting which can be performed in a timely manner.

In order to achieve the above object, the invention according to claim 1 provides a plate-like connecting metal fitting main body, an insertion portion formed at one end of the connecting metal fitting main body, and a holding portion formed at the other end of the connecting metal fitting main body. The clamping part is a jig for mounting a connecting fitting for interconnecting members having flanges by inserting the overlapping flanges into the clamping part, the first handle and a sandwiching portion provided at the tip of the first handle portion, which sandwiches the overlapping flanges by pushing the first handle portion in a predetermined direction, and is rotatably attached to the sandwiching portion. and a push-in portion provided on the second handle and pushing in the holding portion by rotating via the second handle.

The invention according to claim 2 is the jig for attaching the connecting fitting according to claim 1, wherein the sandwiching part is formed at the tip of the first handle part, and and a second member rotatably attached to the first member and having a second contact surface portion contacting the other side of the overlapping flange. Then, the overlapping flanges are fitted between the first contact surface portion and the second contact surface portion, and the first handle portion is pushed in the predetermined direction to rotate the first member, thereby rotating the first member. The overlapped flange is sandwiched between the contact surface portion and the second contact surface portion.

The invention according to claim 3 is the jig for attaching the connecting fitting according to claim 1 or 2, wherein the second handle is capable of being pushed into the holding part in the predetermined direction. characterized by being mounted.

The invention according to claim 4 is the jig for attaching the connecting metal fitting according to claim 1 or 2, wherein the second handle portion is arranged to extend toward the sandwiching portion in a direction orthogonal to the predetermined direction. It is characterized by being attached so that it can be pushed into.

According to this invention, in a state in which the mounting jig for the connecting fitting is fixed by sandwiching the overlapping flanges, the pressing portion is rotated to push in the clamping portion. Since there is no need to hit the joint with a hammer or the like, the noise caused by the hitting sound is reduced, the working environment is improved, and moreover, the fitting can be easily and quickly attached.

It is a perspective view which shows the jig|tool for attachment of the connection metal fittings which concern on 1st Embodiment. (A) is a plan view showing a first handle portion of a jig for attaching a connecting fitting according to the first embodiment, (B) is a side view of the same, and (C) is a front view of the same. , and (D) is a rear view of the same. (A) is a plan view of the first member of the attachment jig for the connecting fitting according to the first embodiment, (B) is a side view of the same, and (C) is a front view of the same. . (A) is a plan view showing a second handle portion of the attachment jig for the connecting fitting according to the first embodiment, (B) is a side view of the same, and (C) is a bottom view of the same; is. It is a figure which shows the attachment process of the connection metal fittings by the jig|tool for attachment of the connection metal fittings which concerns on 1st Embodiment. It is a figure which shows the attachment process of the connection metal fittings by the jig|tool for attachment of the connection metal fittings which concerns on 1st Embodiment. It is a figure which shows the attachment process of the connection metal fittings by the jig|tool for attachment of the connection metal fittings which concerns on 1st Embodiment. It is a perspective view which shows the jig|tool for attachment of the connection metal fittings which concern on 2nd Embodiment. (A) is a plan view showing a second handle portion of a jig for attaching a connecting fitting according to a second embodiment, and (B) is a side view of the same. It is a figure which shows the attachment process of the connection metal fitting by the jig|tool for attachment of the connection metal fitting which concerns on 2nd Embodiment. It is a figure which shows the attachment process of the connection metal fitting by the jig|tool for attachment of the connection metal fitting which concerns on 2nd Embodiment. It is a figure which shows the attachment process of the connection metal fittings by the jig|tool for attachment of the connection metal fittings which concerns on 2nd Embodiment. FIG. 11 is a perspective view showing an improved connecting fitting; It is a front view which shows an improved connection metal fitting. FIG. 11 is a rear view of the improved connecting fitting; It is a top view which shows an improved connection metal fitting. It is a bottom view which shows an improved coupling fitting. It is a left view which shows an improved connection metal fitting. It is a right view which shows an improved connection metal fitting. FIG. 11 is a partial perspective view showing liner plates connected by improved connecting hardware; FIG. 11 is a perspective view of another improved coupling fitting; It is a perspective view showing a conventional connecting fitting. FIG. 5 is a partial perspective view showing liner plates connected by conventional connecting fittings.

[First embodiment]
A first embodiment of the present invention will be described with reference to the drawings.

As shown in FIGS. 1 to 4, a mounting jig 100 (hereinafter referred to as “mounting jig 100”) for the improved connecting fitting (an example of “connecting fitting”) according to the first embodiment includes a first handle and a sandwiching portion 101 which is provided at the tip of the first handle portion 111 and sandwiches the overlapping upper and lower flanges 6 and 4 by pushing the first handle portion 111 downward (an example of the “predetermined direction”). , a second handle 141 rotatably attached to the sandwiching part 101, and a second handle 141 provided on the second handle 141, which is vertically rotated via the second handle 141 to hold the connecting metal fitting main body 1. and a pushing portion 148 for pushing the portion 3 .

As shown in FIG. 2, the first handle 111 has a cylindrical shape, and has two first members 112A and 112B (hereinafter collectively referred to as "first member 112") at its tip. are provided at intervals. A second member 121, which will be described later, is rotatably attached between the first member 112A and the first member 112B.

Further, the first member 112 is formed with a mounting hole 113 for rotatably mounting a second member 121 to be described later.

Further, the first member 112 is formed with a first contact surface portion 114 that comes into contact with the upper flange 6 when the upper and lower flanges 6 and 4 are sandwiched between the sandwiching portions 101 . The first contact surface portion 114 is subjected to anti-slip processing to prevent slipping when in contact with the upper flange 6 . Although the shape of the first handle 111 is cylindrical in this embodiment, it is not limited to this shape.

As shown in FIG. 3, the second member 121 is formed with a vertical attachment hole 122 and an attachment hole 123 . The vertical attachment hole 122 is used to rotatably attach the second handle 141 to the second member 121 . The attachment hole 123 is used to rotatably attach the second member 121 between the first member 112A and the first member 112B. That is, by sandwiching the second member 121 between the first members 112A and 112B, aligning the mounting holes 113 of the first member 112 and the mounting holes 123 of the second member 121, and joining them with bolts or the like. , the second member 121 is rotatably attached to the first member 112 .

The second member 121 has a second contact surface portion 124 that contacts the lower flange 4 and a third contact surface portion 125 that contacts the upper flange 6 when the sandwiching portion 101 overlaps the upper and lower flanges 6 and 4. formed. The second contact surface portion 124 is subjected to non-slip processing to prevent slipping when in contact with the lower flange 4 .

The second member 121 is provided with a rising member 126 used for rotatably attaching a second handle 161 to the second member 121, and the rising member 126 has a horizontal attachment. A hole 127 is formed.

In this manner, the first member 112 and the second member 121 form a sandwiching portion 101 sandwiching the overlapping upper and lower flanges 6 and 4 at the distal end of the first handle portion 111 . The first member 112 is rotated by fitting the overlapping upper and lower flanges 6 and 4 between the two contact surface portions 124 and pushing the first handle portion 111 in a predetermined direction, so that the first contact surface portion 114 and the second contact surface portion 114 are rotated. The upper and lower flanges 6 and 4 overlapping with the surface portion 124 are sandwiched. That is, the sandwiching portion 101 draws the lower flange 4 toward the upper flange 6 and brings the upper and lower flanges 6 and 4 into close contact with each other, thereby facilitating the pushing of the connecting fitting main body 1 .

As shown in FIG. 4, the second handle 141 has a cylindrical shape, and a tip member 142 is provided at the tip thereof. Further, the tip member 142 is provided with a cylindrical member 144, and an edge portion 146 is formed at the upper end thereof. Insertion holes 143, 145, and 147 are formed in the tip member 142, the cylindrical member 144, and the edge portion 146, respectively. By doing so, the second handle 141 is rotatably attached to the second member 121 .

Further, the tip member 142 is formed with a push-in portion 148 that abuts against and pushes into the clamping portion 3 of the connecting metal main body 1 .

Next, a method for attaching the connecting fitting main body 1 using the attachment jig 100 according to the first embodiment will be described.

First, as shown in FIG. 5, the tip 2a of the inserting portion 2 of the connecting fitting body 1 is inserted into the hole 8, and then the widened portion of the entrance edge 3b of the clamping portion 3 of the connecting fitting body 1 is overlapped. It is lightly fitted to the upper and lower flanges 6 and 4.

Next, the overlapping upper and lower flanges 6 and 4 are fitted between the first contact surface portion 114 and the second contact surface portion 124 of the sandwiching portion 101 .

Next, as shown in FIG. 6, the first member 112 is rotated by pushing the first handle portion 111 downward (an example of a “predetermined direction”), and the first contact surface portion 114, the second contact surface portion 124, the second contact surface portion 124, and the 3. The overlapping upper and lower flanges 6 and 4 are sandwiched by the contact surface portion 125 . That is, the sandwiching portion 101 draws the lower flange 4 toward the upper flange 6 and brings the upper and lower flanges 6 and 4 into close contact with each other, thereby facilitating the pushing of the connecting fitting main body 1 . By continuing to push the first handle 111 downward, the mounting jig 100 is fixed to the overlapping upper and lower flanges 6 and 4 .

Next, as shown in FIG. 7, by pushing the second handle 141 downward, the push-in portion 148 rotates in the vertical direction and comes in contact with the clamping portion 3 of the connecting metal body 1 and pushes it. As a result, the upper and lower flanges 6 and 4 can be completely inserted into the clamping portion 3 of the connecting fitting main body 1.例文帳に追加

As described above, the mounting jig 100 according to the first embodiment sandwiches the overlapping upper and lower flanges 6 and 4 by the sandwiching portion 101 provided on the first handle portion 111, and attaches the mounting jig 100. By rotating the second handle portion 141 in a firmly fixed state, the clamping portion 3 of the connecting fitting main body 1 can be pushed in by the pressing portion 148 provided on the second handle portion 141 .

Therefore, according to the mounting jig 100 according to the first embodiment, there is no need to hit the improved connecting fitting with a hammer or the like when the improved connecting fitting rotates, so that the noise caused by the impact sound is reduced and extended. Therefore, the working environment can be improved, and the improved connecting fitting can be attached easily and in a short period of time.

In addition, in the mounting jig 100 according to the first embodiment, when the clamping portion 3 of the connecting metal fitting main body 1 is pushed by the pushing portion 148, the second handle portion 141 is pushed downward (an example of the “predetermined direction”). . At this time, a large force is required to push in the holding portion 3, but according to the mounting jig 100 according to the first embodiment, the second handle portion 141 can be pushed downward, so the operator does not need to apply force. Easy to add.

[Second embodiment]
A second embodiment of the present invention will be described with reference to the drawings. In addition, in the description of the second embodiment, the same reference numerals are given to the same members as in the first embodiment, and the description thereof will be omitted.

As shown in FIG. 8, in the mounting jig 100 according to the second embodiment, the second handle 161 is rotatably attached to the clamping portion 101, and the second handle 161 is provided with a second and a push-in portion 164 that pushes in the holding portion 3 by rotating via the two handle portions 161 .

The mounting jig 100 according to the first embodiment pushes the holding portion 3 while vertically rotating the push-in portion 148 by pushing the second handle portion 141 downward, whereas the mounting jig 100 according to the second embodiment pushes the holding portion 3 inward. By pushing the second handle 161 to the left, the jig 100 pushes the clamping part 3 while horizontally rotating the pushing part 164 .

As shown in FIGS. 8 and 9, the second handle 161 has a cylindrical shape, and a tip member 162 is provided at the tip thereof. An insertion hole 163 is formed in the distal end member 162, and the insertion hole 163 and the horizontal mounting hole 127 of the second member 121 are aligned and joined together with bolts or the like, whereby the second member 121 can be The second handle 161 is rotatably attached to the .

Further, the tip member 162 is formed with a columnar push-in portion 164 that abuts against and pushes into the clamping portion 3 of the connecting metal main body 1 .

Next, a description will be given of a method of attaching an improved connecting fitting using the attachment jig 100 according to the second embodiment.

First, as shown in FIG. 10, the tip 2a of the insertion portion 2 of the connecting fitting body 1 is inserted into the hole 8, and then the widened portion of the entrance edge 3b of the clamping portion 3 of the connecting fitting body 1 is overlapped. It is lightly fitted to the upper and lower flanges 6 and 4.

Next, the overlapping upper and lower flanges 6 and 4 are fitted between the first contact surface portion 114 and the second contact surface portion 124 of the sandwiching portion 101 .

Next, as shown in FIG. 11, the first member 112 is rotated by pushing the first handle 111 downward (an example of a “predetermined direction”), and the first contact surface portion 114, the second contact surface portion 124 and the second contact surface portion 124 are rotated. 3. The overlapping upper and lower flanges 6 and 4 are sandwiched by the contact surface portion 125 . That is, the sandwiching portion 101 draws the lower flange 4 toward the upper flange 6 and brings the upper and lower flanges 6 and 4 into close contact with each other, thereby facilitating the pushing of the connecting fitting main body 1 . By continuing to push the first handle 111 downward, the mounting jig 100 is fixed to the overlapping upper and lower flanges 6 and 4 .

Next, as shown in FIG. 12 , by pushing the second handle 161 in the left direction (an example of “a direction perpendicular to the predetermined direction”), the push-in portion 164 rotates in the horizontal direction, and the connecting fitting main body 1 is pushed. It abuts on the clamping part 3 and is pushed. As a result, the upper and lower flanges 6 and 4 can be completely inserted into the clamping portion 3 of the connecting fitting main body 1.例文帳に追加

As described above, the attachment jig 100 according to the second embodiment sandwiches the overlapping upper and lower flanges 6 and 4 by the sandwiching portion 101 provided on the first handle portion 111, and attaches the attachment jig 100. By rotating the second handle 161 in a firmly fixed state, the clamping part 3 of the connecting fitting main body 1 can be pushed in by the pushing part 164 provided on the second handle 161 .

Therefore, according to the mounting jig 100 according to the second embodiment, there is no need to hit the improved connecting metal fitting with a hammer or the like when rotating the improved connecting metal fitting. Therefore, the working environment can be improved, and the improved connecting fitting can be attached easily and in a short period of time.

Further, in the attachment jig 100 according to the second embodiment, when the clamping portion 3 of the connecting metal fitting main body 1 is pushed by the pushing portion 148, the second handle portion 161 is moved leftward (“the direction perpendicular to the predetermined direction”). For example, when connecting the liner plates to the left and right as shown in FIG. That is, by pushing the first handle 111 rightward, the overlapping left and right flanges 9 and 10 are sandwiched by the sandwiching part 101, and then the second handle 161 is pushed downward, so that the connecting fitting is held by the pushing part 164. The holding part 3 of the main body 1 can be pushed. At this time, a large force is required to push in the holding portion 3, but according to the mounting jig 100 according to the second embodiment, the second handle portion 161 can be pushed downward, so the operator does not need to apply force. Easy to add.

1: Connection fitting body 1a: Reinforcement part 2: Insertion part 2a: Tip part 3: Sanding part 3a: Bending part 3b: Inlet edge part 4: Lower flange 5: Upper liner plate 6: Upper flange 7: Lower liner plate 8 : hole 9: left flange 10: right flange 11: hole 12: handle 13: jig body 14: fitting portion 15: plate 15a: recess 16: projection 21: connecting fitting body 22: insertion portion 23: holding portion 24 : Upper liner plate 25: Upper flange 26: Lower liner plate 27: Lower flange 28: Hole 31: Driving body 31a: Sound deadening member 32: Collar 33A, 33B: Cotter pin 34: Notch L1: Opening width of entrance of clamping part L2: Width of clamping portion L3: Width of insertion portion 100: Attachment jig for connecting fitting 101: Clamping portion 102: Bolt 111: First handle 112, 112A, 112B: First member 113: Mounting hole 114: Third 1 contact surface portion 121: second member 122: vertical mounting hole 123: mounting hole 124: second contact surface portion 125: third contact surface portion 126: rising member 127: horizontal mounting hole 141: second handle 142: tip member 143: Insertion hole 144: Cylindrical member 145: Insertion hole 146: Edge 147: Insertion hole 148: Pushing part 161: Second handle 162: Tip member 163: Insertion hole 164: Pushing part

Claims (4)

It comprises a plate-like connecting fitting main body, an insertion portion formed at one end of the connecting fitting main body, and a clamping portion formed at the other end of the connecting fitting main body, wherein the clamping portion clamps the overlapping flanges. A jig for mounting a connecting fitting for connecting members having flanges to each other by inserting it into a part,
a first handle;
a sandwiching portion provided at the tip of the first handle portion and sandwiching the overlapping flanges by pressing the first handle portion in a predetermined direction;
a second handle portion rotatably attached to the sandwiching portion;
a pushing portion provided on the second handle for pushing the holding portion by rotating via the second handle;
A jig for attaching a connecting fitting, characterized by comprising: A jig for mounting the connecting fitting according to claim 1,
The sandwiching part is
a first member having a first contact surface portion formed at the tip of the first handle portion and in contact with one surface side of the overlapping flanges;
a second member rotatably attached to the first member and having a second contact surface portion in contact with the other surface side of the overlapped flange;
has
The overlapping flanges are fitted between the first contact surface portion and the second contact surface portion, and the first handle portion is pushed in the predetermined direction to rotate the first member, thereby rotating the first contact surface portion. and the second contact surface portion sandwiching the overlapped flanges. A jig for mounting the connecting fitting according to claim 1 or 2,
A jig for attaching a connecting fitting, wherein the second handle is attached to the sandwiching portion so as to be able to be pushed in the predetermined direction. A jig for mounting the connecting fitting according to claim 1 or 2,
A jig for attaching a connecting fitting, wherein the second handle portion is attached to the sandwiching portion so as to be able to be pushed in a direction perpendicular to the predetermined direction.

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