JP7436355B2 - Photography jig and method - Google Patents

Description

The present invention relates to a photographing jig to which a camera is attached for photographing joints between tubes, and a photographing method using the photographing jig.

Conventionally, in water pipes, sewer pipes, etc., the socket of one pipe is inserted into the socket of the other pipe, and the sealing material is compressed between the inner peripheral surface of the socket and the outer peripheral surface of the socket. In addition, a so-called push-on type pipe joint structure is adopted.

For pipes with this type of joint structure, an inspection is performed to determine whether or not the pipes are properly joined to each other. For example, Patent Document 1 discloses a pipe inspection method that includes an annular part to which a plurality of cameras are attached, and by arranging the annular part so as to surround the circumference of the pipe, the inside of the socket is photographed from the axial direction of the pipe. A photographing jig for use is disclosed.

Japanese Patent Application Publication No. 2016-50770

Here, at the joints between the tubes, it is necessary that the tubes be joined so that the bending angle is within a permissible range. However, in the technique of Patent Document 1, since images are taken from the axial direction of the tube, it may be difficult to apply the technique to inspecting the bending angle at the joint.

One aspect of the present invention has been made in view of the above-mentioned conventional problems, and its purpose is to position a camera in the radial direction with respect to a joint between pipes and to photograph the joint. An object of the present invention is to provide a photographing jig and a photographing method using the photographing jig.

In order to solve the above problems, an imaging jig according to one aspect of the present invention is provided. a peripheral surface contacting part that contacts the outer peripheral surface of the first pipe, an end surface contacting part that contacts the end surface of the socket, and the peripheral surface contacting part contacts the outer peripheral surface, The device further includes a support portion that supports the camera in the radial direction of the first tube with respect to the joint portion while the end surface contact portion is in contact with the end surface.

In order to solve the above problems, an imaging method according to one aspect of the present invention uses the imaging jig to connect a first tube and a second tube inserted into a socket of the first tube. The photographing method includes a placing step of placing the photographing jig on the outer circumferential surface of the first tube, and an end face abutting part of the photographing jig placed on the outer circumferential surface of the first tube. and a positioning step of supporting the camera in the radial direction of the first tube with respect to the joint by bringing it into contact with the end surface of the mouth.

According to one aspect of the present invention, there is provided a photographing jig capable of positioning a camera in the radial direction of a joint between tubes and photographing the joint, and a photographing method using the photographing jig. be able to.

1 is a side view of a photographing jig according to Embodiment 1 of the present invention. FIG. 2 is a perspective view of the photographing jig shown in FIG. 1. FIG. FIG. 2 is a top view of the photographing jig shown in FIG. 1; FIG. 2 is a rear view of the photographing jig shown in FIG. 1. FIG. FIG. 2 is an enlarged view showing a state in which the end surface contact portion shown in FIG. 1 is in contact with the end surface of the socket. FIG. 2 is a side view showing an example of a photographing method using the photographing jig shown in FIG. 1; FIG. 7 is a front view showing a modification of the photographing jig according to the first embodiment. 7 is a front view showing another modification of the photographing jig according to Embodiment 1. FIG. FIG. 3 is a side view of a photographing jig according to Embodiment 2 of the present invention. 10 is a perspective view of the photographing jig shown in FIG. 9. FIG. 10 is a diagram showing an example of a photographing method using the photographing jig shown in FIG. 9. FIG.

[Embodiment 1]
Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 1 to 8. However, the following description is an example of the photographing jig according to the present invention, and the technical scope of the present invention is not limited to the illustrated example.

(Composition of photography jig)
First, a configuration example of the photographing jig 3 according to the present embodiment will be described based on FIGS. 1 to 5. FIG. 1 is a side view of the photographing jig 3 according to this embodiment. FIG. 2 is a perspective view of the photographing jig 3 shown in FIG. FIG. 3 is a top view of the photographing jig 3 shown in FIG. 1. FIG. 4 is a rear view of the photographing jig 3 shown in FIG. 1.

In this embodiment, the three directions shown with arrows in FIGS. 1 to 4 are the front-rear direction (axial direction) X, the up-down direction (radial direction) Y, and the left-right direction (radial direction) Z. The photographing jig 3 will be explained using the direction. Note that the three directions shown in FIGS. 1 to 4 are the same in other drawings.

The first pipe 1 and the second pipe 2 are connected to each other along the front-rear direction X. The first pipe 1 and the second pipe 2 are laid approximately horizontally or bent at a predetermined angle in a laying groove or the like formed by excavating the ground surface or the like. By inserting the insertion port 21 of the second tube 2 into the socket 11 of the first tube 1, the first tube 1 and the second tube 2 are joined.

As shown in FIGS. 1 to 4, the photographing jig 3 is a jig for supporting the camera 9 above (in the radial direction) the joint R between these tubes. The image of the joint R taken by the camera 9 can be suitably used for pipe inspection or the like to check whether the bending angle between the pipes is within an allowable range. In this embodiment, a smartphone is used as the camera 9. However, it is not limited to this as long as it has a photographing function.

The photographing jig 3 includes a base 4, a camera support part (support part) 5, a handle 6, a positioning member 7, and a plurality of rollers (peripheral surface contact parts) 8.

The base 4 is a flat plate member that is substantially rectangular in plan view. The base 4 is made of metal such as stainless steel, for example. In this embodiment, the base 4 has a rectangular shape having a longitudinal direction in the front-rear direction X when viewed from above.

A camera support section 5 and a handle 6 are attached to the upper surface of the base 4. The camera support portion 5 is attached to the upper surface of the base 4 by, for example, welding. Further, the handle 6 is removably attached to the base 4 via a handle attachment part 41 provided on the upper surface of the base 4. Furthermore, a positioning member 7 is attached to the upper surface of the base 4 on the front end (hereinafter sometimes referred to as the front end) side. In this embodiment, the positioning member 7 is attached to the base 4 via the hinge part 42. Furthermore, a plurality of rollers 8 are attached to the lower surface of the base 4. Each roller 8 is attached to the base 4 via a roller support portion (fork) 80 that rotatably supports the roller 8 . Note that the roller 8 and the roller support section 80 may be so-called casters.

The camera support section 5 is a support member that supports the camera 9 above the first tube 1 . The camera support portion 5 is made of metal such as stainless steel, for example. The camera support section 5 includes a support arm 51 and a camera holding section 52. The support arm 51 has a substantially L-shaped shape bent forward. The support arm 51 has a base end connected to the upper surface of the base 4, and is provided at a front end opposite to the base end at a camera holder 52 that holds (pinches) the camera 9. The camera holding part 52 is located forward of the base 4. The camera holding section 52 holds (pinches) the camera 9 substantially horizontally with the lens of the camera 9 facing downward.

In the present embodiment, the support arm 51 of the camera support section 5 is mounted unevenly on one side of the upper surface of the base 4 in the left-right direction Z (on the right side in the example of FIG. 3). This is because in a typical smartphone used as the camera 9, the lens of the main camera is often disposed biased to one side of the left or right side of the back of the smartphone. Thereby, the camera support section 5 can support the smartphone so that the lens is located directly above the joint R, that is, above the central axis of the first tube. Note that the attachment position of the support arm 51 to the base 4 can be adjusted as appropriate according to the specifications of the camera 9 (for example, the position of the main camera of the smartphone, etc.).

The handle 6 is a rod-shaped member that is held by an operator to operate the photographing jig 3. The handle 6 is made of metal such as aluminum. The handle 6 is removably attached to a handle attachment portion 41 provided approximately at the center of the upper surface of the base 4. Since the handle 6 is detachable, for example, by removing the handle 6 from the base 4 when the photographing jig 3 is not in use, the photographing jig 3 can be easily stored and transported.

The positioning member 7 is a rod-shaped member that positions the imaging jig 3 in the front-rear direction X by coming into contact with the end surface 12 of the socket 11 . The positioning member 7 is made of metal such as stainless steel, for example. The positioning member 7 is attached to the front end of the base 4 via the hinge part 42. Thereby, the positioning member 7 can swing in the vertical direction Y around the hinge part 42. The positioning member 7 includes a flat rod portion 71 and an end surface contact portion 72.

The flat rod portion 71 is a flat rod-shaped member that extends forward from the base 4. A rear end portion of the flat bar portion 71 is connected to the hinge portion 42 . Further, the front end of the flat rod portion 71 is provided with an end surface abutting portion 72 that projects downward. When this end surface abutting portion 72 abuts against the end surface 12 of the socket 11, the photographing jig 3 is positioned in the front-rear direction X.

FIG. 5 is an enlarged view showing a state in which the end surface contact portion 72 is in contact with the end surface 12 of the socket 11. As shown in FIG. 5, the end surface contact portion 72 contacts the upper end side of the end surface 12 of the socket 11. As shown in FIG. The photographing jig 3 is supported by the camera support section 5 with each roller 8 in contact with the outer peripheral surface 13 of the first tube 1 and with the end surface contact section 72 in contact with the end surface 12 of the socket 11. The lengths of the camera support portion 5 and the positioning member 7 in the front-rear direction X are set so that the camera 9 is located above the joint R.

The roller 8 is a rotating member that contacts the outer peripheral surface 13 of the first tube 1 with its peripheral surface. In this embodiment, four rollers 8 are attached to the four corners of the lower surface of the base 4. Each roller 8 is attached to the base 4 so that the photographing jig 3 can move (run) along the axial direction of the first tube 1, that is, the front-rear direction X. In this embodiment, each roller 8 is attached to the base 4 so that each axle is substantially parallel to the left-right direction Z. However, the axle of each roller 8 may be inclined diagonally with respect to the left-right direction Z so that the contact area between the circumferential surface of the roller 8 and the outer circumferential surface 13 of the first tube 1 is increased. Thereby, the imaging jig 3 can be more stably placed on the outer circumferential surface 13 of the first tube 1.

In the present embodiment, the rollers 8 include a pair of first rollers 81 disposed in the circumferential direction of the first tube 1 and a space provided rearwardly with respect to the pair of first rollers 81. a pair of second rollers 82 disposed in the circumferential direction of the roller. In the photographing jig 3, at least four rollers 8, a pair of first rollers 81 and a pair of second rollers 82, come into contact with the outer circumferential surface 13 of the first tube. Each of these four rollers is arranged at intervals from each other in the circumferential and axial directions of the first tube 1. Therefore, the photographing jig 3 can be stably placed on the outer circumferential surface 13 of the first tube 1, and misalignment of the photographing jig 3, tilting of the camera support section 5, etc. can be reduced.

In the photographing jig 3 having the above-described configuration, the plurality of rollers 8 contact the outer circumferential surface 13 of the first tube 1, and the end surface contact portion 72 contacts the end surface 12 of the socket 11, so that the joint location R A camera 9 is supported above (in the radial direction) the first tube 1 . Therefore, according to the photographing jig 3, the camera 9 can be easily positioned above the joint R.

Furthermore, the photographing jig 3 positions the camera 9 while being placed on the outer circumferential surface 13 of the first tube 1 instead of having an annular structure surrounding the circumference of the tube as in the conventional case. Therefore, there is no need to provide a diameter-enlarging structure for the annular portion as in the prior art, and the present invention can also be applied to photographing pipes installed in installation grooves or the like with a narrow width in the left-right direction Z. Moreover, the structure can be simplified and the manufacturing cost of the photographing jig 3 can be reduced.

Note that the camera support portion 5 may have a length that can be changed in the front-rear direction (axial direction) X (length change mechanism). This makes it possible to change the length of the camera support section 5 in accordance with a plurality of types of first tubes 1 having different diameters (nominal diameters) and the like. Moreover, the height of the camera support section 5 in the vertical direction Y may be changeable (height change mechanism). This makes it possible to change the height of the camera support portion 5 in accordance with a plurality of types of first tubes 1 having different diameters, etc. Therefore, the photographing jig 3 can be used with a plurality of types of first tubes 1 having different diameters, so that the versatility of the photographing jig 3 can be increased.

Furthermore, the hinge portion 42 may be attached to the base 4 so that its height in the vertical direction Y can be changed. This makes it possible to change the height of the positioning member 7 in accordance with a plurality of types of first pipes 1 having different diameters, etc. Therefore, since the photographing jig 3 can be used with a plurality of types of first tubes 1 having different diameters, etc., the versatility of the photographing jig 3 can be further improved.

(Photography method using a photography jig)
Next, an example of an imaging method using the imaging jig 3 according to this embodiment will be described based on FIG. 6. The photographing method using the photographing jig 3 is performed by a worker operating the photographing jig 3 from the ground surface at the joint R between the first pipe 1 and the second pipe 2 installed in the installation trench etc. .

The photographing method according to the present embodiment includes a placing step of placing the photographing jig 3 on the outer circumferential surface 13 of the first tube 1, and a placing step of placing the photographing jig 3 on the outer circumferential surface 13 of the first tube 1, and abutting the end surface abutting portion 72 of the positioning member 7 on the end surface 12 of the socket 11. The method includes a positioning step of supporting the camera 9 above the first tube 1 with respect to the joint R, and a photographing step of photographing the joint R with the camera 9.

FIG. 6 is a side view showing an example of an imaging method using the imaging jig 3 shown in FIG. Reference numeral 6001 in FIG. 6 is a side view showing an example of a mounting process of mounting the imaging jig 3 on the outer circumferential surface 13 of the first tube 1. Reference numeral 6002 in FIG. 6 is a side view showing an example of a positioning process of moving the imaging jig 3 forward. Reference numeral 6003 in FIG. 6 is a side view showing an example of a positioning process in which the photographing jig 3 is moved rearward and the end surface contact portion 72 is brought into contact with the end surface 12 of the socket 11.

In the photographing method using the photographing jig 3, the operator grasps the handle 6 and places the photographing jig 3 on the outer circumferential surface 13 of the first tube 1, as shown by reference numeral 6001 in FIG. mounting process). As a result, the four rollers 8 come into contact with the outer circumferential surface 13 of the first tube 1, and the photographing jig 3 is stably placed on the outer circumferential surface 13 of the first tube 1. At this time, the end surface abutting portion 72 may be located further back than the end surface 12 of the socket 11 .

Next, the operator operates the handle 6 to move (travel) the imaging jig 3 forward, as shown by reference numeral 6002 in FIG. At this time, the end surface contact portion 72 moves forward beyond the end surface 12 of the socket 11, and the positioning member 7 rotates downward around the hinge portion 42. As a result, the end surface abutting portion 72 faces the end surface 12 of the socket 11 . Then, the operator operates the handle 6 to move (travel) the photographing jig 3 backward, as shown by reference numeral 6003 in FIG. Let them come into contact with you. Thereby, the camera P is supported above the first tube 1 with respect to the joint R (positioning step).

In this way, in the positioning step, by moving (traversing) the photographing jig 3 on the outer circumferential surface 13 of the first tube 1 along the axial direction (front-rear direction X) of the first tube 1, the camera 9 can be easily positioned.

Next, the operator operates the camera 9 and photographs the joint R with the camera 9 (photographing step). Thereby, the joint location R can be photographed from above the first tube 1. In addition, in the photographing process, the worker may photograph the joint location R by remotely operating the camera 9.

As described above, in the imaging method according to the present embodiment, after the imaging jig 3 is placed on the outer circumferential surface 13 of the first tube 1, the end surface abutting portion 72 is brought into contact with the end surface 12 of the socket 11. , a camera 9 is supported above the joint R. Therefore, according to the photographing method according to this embodiment, the camera 9 can be easily positioned above the joint R of the tubes, and the joint R can be photographed.

(Effect of shooting jig)
As described above, the photographing jig 3 according to the present embodiment is a jig for photographing the joining point R between the first pipe 1 and the second pipe 2 inserted into the socket 11 of the first pipe 1. It is. The photographing jig 3 includes a roller 8 that contacts the outer circumferential surface 13 of the first tube 1, an end surface contact portion 72 that contacts the end surface 12 of the socket 11, and a roller 8 that abuts the outer circumferential surface 13 and a positioning member. A camera support part 5 is provided that supports the camera 9 above (in the radial direction) of the first tube 1 with respect to the joint R with the end face contact part 72 of the member 7 in contact with the end face 12.

In the photographing jig 3, the roller 8 is in contact with the outer circumferential surface 13 of the first tube 1, and the end surface contact portion 72 is in contact with the end surface 12 of the socket 11, so that the first tube 1 and the second tube 2 are in contact with each other. A camera 9 is positioned above the first tube 1 with respect to the joining point R with the first tube 1.

Therefore, according to the present embodiment, it is possible to provide the photographing jig 3 that can easily position the camera 9 above the joint R and photograph the joint R.

(Modified example)
Next, a modification of the imaging jig 3 will be described based on FIGS. 7 and 8. Note that in FIGS. 7 and 8, only a part of the configuration of the photographing jig 3 is illustrated for convenience of explanation. Further, although the explanation will be given below using the pair of first rollers 81 as an example, the same applies to the pair of second rollers 82.

FIG. 7 is a front view showing a modification of the photographing jig 3 shown in FIG. As shown in FIG. 7, in the photographing jig 3, the interval between the pair of first rollers 81 in the left-right direction Z may be changeable. For example, in the photographing jig 3, the roller support portion 80 that rotatably supports the first roller 81 may be slidable with respect to the base 4.

This makes it possible to change the interval between the pair of first rollers 81 in accordance with a plurality of types of first pipes 1 having different diameters, etc. Therefore, the photographing jig 3 can be used with a plurality of types of first tubes 1 having different diameters, so that the versatility of the photographing jig 3 can be increased.

FIG. 8 is a front view showing another modification of the photographing jig 3 shown in FIG. 1. Reference numeral 8001 in FIG. 8 is a front view showing a state in which the photographing jig 3 is placed on the outer peripheral surface 13 of the first tube 1 having a small diameter. Reference numeral 8002 in FIG. 8 is a front view showing a state in which the photographing jig 3 is placed on the outer circumferential surface 13 of the first tube 1 having a large diameter.

As shown in reference numerals 8001 and 8002 in FIG. 8, the photographing jig 3 includes a pair of first rollers 81A and a pair of first rollers as rollers 8, which are mutually disposed in the circumferential direction of the first tube 1. 81B. The pair of first rollers 81A and the pair of first rollers 81B have different distances from each other. In the example of FIG. 8, the interval between the pair of first rollers 81B is set larger than the interval between the pair of first rollers 81A, and the interval between the pair of first rollers 81B is set larger than the interval between the pair of first rollers 81A. placed below.

As shown by reference numeral 8001 in FIG. 8, when the photographing jig 3 is placed on the outer circumferential surface 13 of the first tube 1 having a relatively small diameter, the pair of first rollers 81A are in contact with the outer circumferential surface 13, and the pair of first rollers 81A are in contact with the outer circumferential surface 13. The first roller 81B does not contact the outer peripheral surface 13. Further, as shown by reference numeral 8002 in FIG. 8, when the photographing jig 3 is placed on the outer circumferential surface 13 of the first tube 1 having a relatively large diameter, the pair of first rollers 81B come into contact with the outer circumferential surface 13. , the pair of first rollers 81A do not contact the outer circumferential surface 13. In this way, it is possible to use the pair of first rollers 81A and the pair of first rollers 81B depending on the plurality of types of first pipes 1 having different diameters, etc. Therefore, the photographing jig 3 can be used with a plurality of types of first tubes 1 having different diameters, so that the versatility of the photographing jig 3 can be increased.

[Embodiment 2]
Other embodiments of the invention will be described below. For convenience of explanation, members having the same functions as the members described in the above embodiment are given the same reference numerals, and the description thereof will not be repeated.

(Composition of photography jig)
FIG. 9 is a side view of the imaging jig 30 according to this embodiment. FIG. 10 is a perspective view of the imaging jig 30 shown in FIG. 9. As shown in FIGS. 9 and 10, the photographing jig 30 includes a camera support portion 50, a handle 6, a pair of positioning members 70, a roller 8, and a connecting portion 40. include. In this embodiment, the rollers 8 include a pair of first rollers 83 and a pair of second rollers 84.

The connecting portion 40 is a connecting member that connects the pair of positioning members 70 and extends in the left-right direction Z. A handle attachment part 41 is attached to the upper surface of the connection part 40.

The camera support section 50 is a support member that supports the camera 9 above the first tube 1 . The camera support section 50 includes an extension section 53 and a camera holding section 52. The extending portion 53 is provided so as to extend forward from the middle of the handle attachment portion 41 . A camera holding section 52 is provided above this extension section 53.

The pair of positioning members 70 are frame members having a substantially rectangular shape with an open rear side when viewed from the side. Each of the pair of positioning members 70 includes an upper horizontal portion 73 extending in the front-rear direction and an extending lower horizontal portion 75.

The pair of upper horizontal parts 73 and the pair of lower horizontal parts 75 are arranged facing each other in the vertical direction Y. A first roller 83 is attached to the upper surface of each of the lower horizontal parts 75 via a roller support part 80 and a spring 10. Further, a second roller 84 is attached to the lower surface of each of the upper horizontal parts 73 via a roller support part 80 and a spring 10. The first roller 83 and the pair of second rollers 84 are attached to positions facing each other in the vertical direction Y.

The spring 10 is an elastic member that biases the first roller 83 and the second roller 84 against the outer circumferential surface 13 of the first tube 1 . The spring 10 is composed of, for example, a compression spring. By urging the first roller 83 and the second roller 84 against the outer peripheral surface 13 of the first tube 1 by the spring 10, the photographing jig 30 can be stably attached to the first tube 1.

The pair of first rollers 83 are in contact with the lower outer circumferential surface 13 of the socket 11 of the first tube 1 . Further, the pair of second rollers 84 abuts on the upper outer circumferential surface 13 of the socket 11 of the first tube 1 . In a state where the pair of first rollers 83 and the pair of second rollers 84 are in contact with the outer circumferential surface 13 of the first pipe 1, the pair of vertical portions 74 are located at the end surfaces located in the left-right direction Z of the socket 11. 12. At this time, the length of the camera support part 50 in the front-rear direction X is set so that the camera 9 supported by the camera support part 50 is located above the joint R.

In this embodiment, the first roller 83 and the second roller 84 are urged against the outer circumferential surface 13 of the first tube 1 by the springs 10 provided in the upper horizontal part 73 and the lower horizontal part 75. However, instead of this configuration, plate springs (circumferential contact parts) are provided in the upper horizontal part 73 and the lower horizontal part 75, and the plate springs are brought into contact with the outer circumferential surface 13 of the first pipe 1. The photographing jig 30 may be attached to the first tube 1.

(Photography method using a photography jig)
Next, an example of an imaging method using the imaging jig 30 according to this embodiment will be described based on FIG. 11. The method of photographing using the photographing jig 30 is performed by an operator operating the photographing jig 30 from the ground surface at the joint R between the first pipe 1 and the second pipe installed in a laying groove or the like.

The photographing method according to the present embodiment includes a first roller contact step of bringing a pair of first rollers 83 into contact with the outer peripheral surface 13 of the first tube 1; a second roller contacting step of bringing the two rollers 84 into contact with each other; and positioning of supporting the camera 9 above the first pipe 1 with respect to the joint R by bringing the vertical portion 74 into contact with the end surface 12 of the socket 11. and a photographing step of photographing the joint location R using the camera 9.

FIG. 11 is a side view showing an example of an imaging method using the imaging jig 30 shown in FIG. Reference numeral 1101 in FIG. 11 is a side view showing an example of a first roller contacting step of bringing a pair of first rollers 83 into contact with the outer circumferential surface 13 of the first tube 1. As shown in FIG. Reference numeral 1102 in FIG. 11 is a side view illustrating an example of a second roller contacting step of bringing a pair of second rollers 84 into contact with the outer circumferential surface 13 of the first tube 1. As shown in FIG. Reference numeral 1103 in FIG. 11 is a side view showing an example of a positioning process in which the vertical portion 74 is brought into contact with the end surface 12 of the socket 11.

In the photographing method using the photographing jig 30, the operator grips the handle 6 and moves the pair of first rollers 83 to the first tube 1 while compressing the spring 10, as shown by reference numeral 1101 in FIG. (first roller contact step).

Next, the operator operates the handle 6 to rotate the photographing jig 30 around the pair of second rollers 84, as indicated by reference numeral 1102 in FIG. 84 is brought into contact above the outer circumferential surface 13 of the first tube 1, and the photographing jig 30 is attached to the first tube 1 (second roller contact step). As a result, the pair of first rollers 83 and the pair of second rollers 84 press the outer circumferential surface 13 of the first tube 1 due to the biasing force of the spring 10, so that the photographing jig is attached to the outer circumferential surface 13 of the first tube 1. 3 can be stably installed.

Next, the operator operates the handle 6 to bring the vertical portion 74 of the positioning member 7 into contact with the end surface 12 of the socket 11, as shown by reference numeral 1103 in FIG. 11 (positioning step). Thereby, the camera 9 is supported above the first tube 1 with respect to the joint location R.

Next, the operator operates the camera 9 and photographs the joint R with the camera 9 (photographing step). Thereby, the joint location R can be photographed from above the first tube 1.

(Effect of shooting jig)
As described above, the photographing jig 30 according to the present embodiment is a jig for photographing the joining point R between the first pipe 1 and the second pipe 2 inserted into the socket 11 of the first pipe 1. It is. The photographing jig 30 includes a roller 8 that contacts the outer peripheral surface 13 of the first tube 1 , a vertical portion 74 that contacts the end surface 12 of the socket 11 , a roller 8 that contacts the outer peripheral surface 13 , and a positioning member 70 . A camera support part 50 is provided that supports the camera 9 above (in the radial direction) of the first tube 1 with respect to the joint location R with the vertical part 74 of the camera in contact with the end surface 12 .

In the photographing jig 30, the roller 8 is in contact with the outer circumferential surface 13 of the first tube 1, and the vertical portion 74 of the positioning member 7 is in contact with the end surface 12 of the socket 11, so that the first tube 1 and the second tube 1 are in contact with each other. A camera 9 is positioned above the first tube 1 with respect to the joining point R with the tube 2.

Therefore, according to the present embodiment, it is possible to provide the photographing jig 30 that can easily position the camera 9 above the joint R and photograph the joint R.

The present invention is not limited to the embodiments described above, and various modifications can be made within the scope of the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. are also included within the technical scope of the present invention.

1 First tube 2 Second tube 3, 31 Photography jig 4 Base 5 Camera support part (support part)
6 Handle 7 Positioning member 8 Roller (peripheral surface contact part)
9 Camera 11 Socket 12 End face 13 Outer surface 42 Hinge part 70 Positioning member 72 End face contact part 74 Vertical part (End face contact part)
81, 81A, 81B, 83 First roller (circumferential surface contact part)
82, 84 Second roller (peripheral surface contact part)
R Joint location X Front-rear direction (axial direction)
Y Vertical direction (radial direction)
Z Lateral direction (radial direction)

Claims (9)

A photographing jig for photographing a joint between a first pipe and a second pipe inserted into a socket of the first pipe,
a circumferential surface abutting portion that abuts the outer circumferential surface of the first tube;
an end surface abutting portion that abuts the end surface of the socket;
Support for supporting the camera in the radial direction of the first tube with respect to the joint with the circumferential surface contacting portion contacting the outer peripheral surface and the end surface contacting portion contacting the end surface. Department and
Photography jig equipped with The photographing jig according to claim 1, wherein the circumferential surface abutting section includes a plurality of rollers that abut the outer circumferential surface and are rotatable along the axial direction of the first tube. The plurality of rollers are
a pair of first rollers arranged in the circumferential direction of the first tube, the interval between the pair of first rollers being changeable, or
The photographing jig according to claim 2, comprising a plurality of pairs of first rollers arranged in the circumferential direction of the first tube, and the intervals between each pair of first rollers are different from each other. The plurality of rollers are
a pair of first rollers arranged in the circumferential direction of the first tube;
a pair of second rollers arranged at intervals in the axial direction of the first tube with respect to the pair of first rollers;
The photographing jig according to claim 2 or 3, comprising: The photographing jig according to any one of claims 1 to 4, wherein the support section has a length changing mechanism that changes the length of the first tube in the axial direction. The photographing jig according to any one of claims 1 to 5, wherein the support section has a height changing mechanism that changes the height of the first tube in a radial direction. The photographing jig according to any one of claims 1 to 6, further comprising a hinge part that swingably supports the end surface contact part in a radial direction of the first tube. A photographing method for photographing a joint location between a first tube and a second tube inserted into a socket of the first tube using the photographing jig according to claim 1,
a placing step of placing the photographing jig on the outer peripheral surface of the first tube;
a positioning step of supporting the camera in the radial direction of the first tube with respect to the joint by bringing the end surface abutting part of the photographing jig placed on the outer circumferential surface into contact with the end surface of the socket; and,
Shooting methods including. The photographing method according to claim 8, wherein in the positioning step, the end surface contact portion is brought into contact with the end surface of the socket by moving the photographing jig along the axial direction of the first tube. .

Images