Extension rod, extension rod fixing auxiliary member and stop threaded member

Abstract

Provided is an extension rod capable of preventing a columnar member from falling off. This extension rod is provided with an extension rod connection body (10) in which a hollow first column member (21) and a hollow second column member (22) that accommodates at least a part of the first column member (21) are combined, and is provided with: cover sections (212, 222) that are provided with openings that are attached to the first column member (21) and the second column member (22); a band-shaped member (3) that is disposed inside the first column member (21) and the second column member (22); a first fixing member (41) which is attached to the cover portion (212) of the first column member (21) and is fixed to the band-shaped member (3); a second fixing member (42) that is attached to the cover portion (222) of the second column member (22) and that is fixed to the band-shaped member (3); the length of the band-shaped member 3 between the first fixing member 41 and the second fixing member 42 is shorter than the length of the second column member 22.

Description

Technical Field

[0001] The present invention relates to a connecting rod and a connecting rod fixing auxiliary member for the connecting rod and a stopper screw member used as a part thereof. Background Art

[0002] As is well known, a long pole used at an extended length can be used for aerial work such as photography or underwater work (Non-Patent Document 1). Such a long pole is widely used as photographic equipment, etc., for transmitting images or photos from a camera mounted on its front end to a display such as a handheld smartphone, so as to take photos at a height. Such a long pole can be extended to a length that cannot be reached by a general tripod, such as 4 to 15 meters, at its longest. This length can be used to safely perform high-altitude photography (such as aerial photography) or inspection, measurement, underwater photography, etc. On the other hand, when not used as a long pole, the barrel can be shortened to a length of several dozen inches to slightly less than 2 meters, and is also easy to store and carry.

[0003] Examples of such long poles include cameras that can be adjusted to any height for shooting, scissors for pruning branches at heights, and other tools for construction, as well as pole-shaped auxiliary tools used in aerial work. For example, Patent Document 1 discloses a bird's-eye view photography device for taking photos from a height, which is used in archaeological site excavation surveys, construction sites, design studios, and other places.

[0004] The method of adjusting the height is to use a vibrating rod-shaped auxiliary tool, which has multiple cylindrical bodies of different diameters built in on the same axis and extends out in sequence when in use. Alternatively, a connecting rod-shaped auxiliary tool can be used, which has threads or fitting parts at both ends of cylindrical bodies of the same diameter, and is connected by screwing in these threads or fitting through a fitting structure.

[0005] In addition, Patent Document 2 discloses a cylindrical body for a connecting rod, etc., which has a hollow first cylindrical body; a hollow second cylindrical body, which is wider in diameter than the first cylindrical body and includes a portion of the first cylindrical body; a connecting portion, which is arranged between the outer peripheral side of the first cylindrical body and the inner peripheral side of the second cylindrical body when a portion of the first cylindrical body is included in the hollow portion of the second cylindrical body; an upper end side connecting portion, which is located on the upper end side of the first cylindrical body; a lower end side connecting portion, which is located on the lower end side; the upper end side of the first cylindrical body that is not included in the second cylindrical body and protrudes constitutes an insertion portion, and the hollow portion of the lower end side of the second cylindrical body that does not include the first cylindrical body and can be fitted with the insertion portion constitutes a receiving portion.

[0006] Prior art literature

[0007] Patent Literature

[0008] Patent Document 1: Patent Publication No. JP2021-150414

[0009] Patent Document 2: Patent Publication No. JP2018-81148

[0010] Non-patent document 1: Bi (registered trademark) Rod Store (URL: https: / / birodstore.com / ) Summary of the invention

[0011] Problem that the invention aims to solve

[0012] In Patent Document 1 and common tripods, when the legs are pulled out to extend them, a portion with a larger diameter is provided on the part of the legs that moves inside so that the inner and outer sides of the legs are clamped together to prevent them from falling off. However, in this shape, the legs used to adjust the length must be thin enough to move freely while allowing the portion with a larger diameter to move inside the tube, which results in a large difference in thickness between the outer and inner legs. As a result, it is difficult to increase the number of legs, and it is impossible to shorten their length when they are folded up and increase their length when they are extended.

[0013] In patent document 2 and non-patent document 1, in order to solve such a problem, a cylindrical member with substantially equal outer diameters at both ends is used, and an inner cylindrical member with an outer diameter substantially equal to the inner diameter of the outer cylindrical member is used between adjacent cylindrical members. Thus, even in the case of multiple stages, the diameter difference of the cylindrical member can be suppressed from changing excessively, and even if multiple stages of cylinders are connected for use, sufficient strength can be easily maintained.

[0014] However, if the inner diameter of the outer cylinder is roughly equal to the outer diameter of the inner cylinder, the outer cylinder may be pulled out more than its length by mistake, causing the outer cylinder and the inner cylinder to separate unexpectedly. This situation may occur in the following cases: the inner cylinder is pulled out too much simply because the stop pull-out mark is ignored, the clamp is not fixed and falls off due to weight, or the clamp becomes loose during use and falls off.

[0015] Under such circumstances, an object of the present invention is to provide a connecting rod capable of preventing a column member from falling off, and a member used for the connecting rod.

[0016] Means of solving the problem

[0017] The present inventors have conducted active research to solve the above problems and have concluded that the following inventions meet the above objectives, thereby arriving at the present invention. That is, the present invention relates to the following inventions.

[0018] (1) A connecting rod, the connecting rod comprising a connecting rod connecting body formed by combining a hollow first column member and a hollow second column member that accommodates at least a portion of the first column member, the connecting rod comprising:

[0019] a cover having openings mounted on the first column member and the second column member;

[0020] a strip-shaped member disposed inside the first column member and the second column member;

[0021] a first fixing member, the first fixing member being mounted on the cover portion of the first column member and fixed to the belt-shaped member;

[0022] a second fixing member, the second fixing member being mounted on the cover portion of the second column member and fixed to the belt-shaped member;

[0023] The length of the belt-shaped member between the first fixing member and the second fixing member is shorter than the length of the second column member.

[0024] (2) A connecting rod according to (1), wherein the opening portion of the cover portion has an internal thread portion, and the first fixing member and the second fixing member have external thread portions adapted to the internal thread portion; the first fixing member and the second fixing member have a stopping thread member, and the stopping thread member has a first fixing member for fixing the strip-shaped member and a receiving portion for receiving the first fixing member; the stopping thread member has a first groove portion arranged along the length direction and a second groove portion intersecting with the length direction of the first groove portion, and the second groove portion is the receiving portion for receiving the first fixing member.

[0025] (3) A connecting rod fixing auxiliary member, wherein the connecting rod fixing auxiliary member has a belt-shaped member, a first fixing member fixed to the belt-shaped member, and a second fixing member fixed to the belt-shaped member, and is installed with a predetermined length of the belt-shaped member between the first fixing member and the second fixing member.

[0026] (4) A stopper screw member including a first groove portion provided along a longitudinal direction and a second groove portion intersecting with the longitudinal direction of the first groove portion.

[0027] Effects of the Invention

[0028] The invention can prevent the column component of the connecting rod from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of an example of a connecting body for a connecting rod of the present invention.

[0030] Figure 2 This is a schematic diagram showing the relationship between existing column members.

[0031] Figure 3 1 is a schematic diagram of an example of a stop screw member of the present invention.

[0032] Figure 4 This is a schematic diagram of an example of a connecting rod fixing auxiliary member according to the present invention.

[0033] Figure 5 This is a schematic diagram of an example of the operation of installing a fixing member on a cover portion of a column member according to the present invention.

[0034] Figure 6 2 is a schematic diagram of an example of a connecting rod of the present invention.

[0035] Figure 7 This is a schematic diagram of an example of a method for fixing a connecting rod of the present invention.

[0036] Figure 8 is a schematic diagram of an example of a connecting rod of the present invention.

[0037] Fig. 9 This is a schematic diagram of an operation example of mounting a fixing member on a cover portion of a column member according to the present invention.

[0038] Fig.10 It is a schematic diagram of an example of mounting the end portion of the hand-held column member of the connecting rod of the present invention.

[0039] Fig.11 2 is a diagram showing an example of manufacturing the first fixing member and the second fixing member of the present invention.

[0040] Fig.12 It is a diagram showing an example of operation of attaching the fixing member to the cover portion of the column member according to the present invention.

[0041] Fig.13 This is a diagram showing an example of manufacturing a connecting rod connector according to the present invention. DETAILED DESCRIPTION

[0042] The embodiments of the present invention will be described in detail below, but the description of the constituent elements described below is only an example (representative example) of the embodiments of the present invention, and unless the gist of the present invention is changed, the present invention is not limited to the following contents. In addition, when "~" is used in this specification, it refers to an expression method that includes the numerical values ​​before and after it.

[0043] Connecting rod of the present invention

[0044] A connecting rod, the connecting rod having a connecting rod connecting body formed by combining a hollow first column member and a hollow second column member accommodating at least a portion of the first column member, the connecting rod having:

[0045] a cover having openings mounted on the first column member and the second column member;

[0046] a strip-shaped member disposed inside the first column member and the second column member;

[0047] a first fixing member, the first fixing member being mounted on the cover portion of the first column member and fixed on the belt-shaped member;

[0048] a second fixing member, the second fixing member being mounted on the cover portion of the second column member and fixed to the belt-shaped member;

[0049] The length of the belt-shaped member between the first fixing member and the second fixing member is shorter than the length of the second column member.

[0050] Connecting rod fixing auxiliary component of the present invention

[0051] A connecting rod fixing auxiliary component, wherein the connecting rod fixing auxiliary component has a belt-shaped component, a first fixing component fixed to the belt-shaped component, and a second fixing component fixed to the belt-shaped component, and is installed with a predetermined length of the belt-shaped component between the first fixing component and the second fixing component.

[0052] Stop thread member of the present invention

[0053] A stop screw component comprises a first groove portion arranged along a length direction and a second groove portion intersecting with the length direction of the first groove portion.

[0054] In addition, in the present application, the connecting rod fixing auxiliary member of the present invention and the stop screw member of the present invention can be used for the connecting rod of the present invention, and the respective corresponding structures in the present application can be used mutually.

[0055] Figure 1 This is a schematic diagram of an example of a connecting rod connector according to the present invention. Figure 1 (a) is a schematic diagram showing the connecting rod connection body 10 in a state where the column members are accommodated. Figure 1 (b) is a diagram showing the first column member 21 extending from the second column member 22. Figure 1 (c) shows a state where the first column member 21 is pulled out from the second column member 22 and arranged in order to explain the length relationship between the first column member 21 and the second column member 22 and the like.

[0056] Figure 22 is a schematic diagram showing the relationship of the conventional column members. The first column member 21 and the second column member 22 are a part of the connecting rod, and they are a combination of related members connected to the connecting rod connector 10. The first column member 21 and the second column member 22 are fixed by a clamp 223 to prevent them from falling off. As a reference for the fixing position, the first column member 21 arranged on the inner side is colored or the like to obtain a mark 211, and the clamp 223 of the second column member 22 on the outer side is used to fix it within the visible range of the mark 211. In addition, a mark 221 is provided to further set other column members on the second column member 22. When the first column member 21 is not fixed at the mark 211 and is not fixed by the clamp 223 and directly extends, the first column member 21 will be detached from the second column member 22. The connecting rod of the present invention is installed by using the strip member 3, the first fixing member 41 and the second fixing member 42 related to the connecting rod fixing auxiliary member of the present invention so that each column member of the connecting rod connector 10 will not fall off.

[0057] Connector for connecting rod 10

[0058] The connecting rod connector 10 is composed of a first column member 21 and a second column member 22 that receives at least a portion of the first column member 21 .

[0059] The first column member 21 and the second column member 22

[0060] The first column member 21 and the second column member 22 are column members constituting the connecting rod connector 10. Except for the difference in the thickness of the outer circumference (equivalent to the diameter of the cylinder), the first column member 21 and the second column member 22 can use similar members such as the basic shape of the cross section, length and thickness. The connecting rod can be composed of a plurality of column members. Therefore, due to the mutual relationship between the column members arranged in multiple stages, a repeated structure can be provided, wherein when other inner column members are provided on the inner side of the first column member 21, the inner column member can be regarded as the first column member, and when other outer column members are provided on the outer side of the second column member 22, the outer column member can be regarded as the second column member. Therefore, when explaining the structure common to the first column member 21 and the second column member 22, etc., it is sometimes only referred to as a column member.

[0061] The column member is hollow. The adjacent thin column members are accommodated in the hollow part. The column member can be a cylindrical member with a circular cross-sectional shape, a polygonal columnar member with a polygonal cross-sectional shape, a member with a cross-sectional shape that is a combination of straight lines and curves, etc. Since it is easy to connect multiple column members to become longer, it is particularly preferable to use a cylindrical member.

[0062] Such a column member is preferably made of a material that is light in weight and has a strong bending load. In addition, a material that has excellent shape stability under the use environment is preferred. As such a material, for example, it is preferably made of at least one material selected from carbon fiber, glass fiber and aluminum. They can also be combined to form a structure composed of different materials, for example, the first column member on the inside is made of glass fiber and the second column member on the outside is made of carbon fiber.

[0063] It is preferred to use column members of approximately the same length. The specific length is, for example, that each column member is about 30 centimeters (cm) to 200 cm, preferably about 50 cm to 150 cm. At this length, when the column members for connecting rods of the present invention are connected and used as connecting rods, a length of more than 3 meters (m) or more than 5 m (for example, about 12 m) can be achieved without a very large number of connections, and its length that is easy to carry generally also has excellent operability. In addition, the diameter of the outermost diameter portion can be, for example, about 10 mm to 100 mm, more specifically about 20 mm to 50 mm.

[0064] Cover parts 212, 222

[0065] The first column member 21 has a cover 212 with an opening. In addition, the second column member 22 has a cover 222 with an opening. The cover 212, 222 is installed to prevent the column member from falling off from the opposite side of the shape designed to extend and extend, and to increase the strength so that the column member is not easily deformed when fastened with a clamp 223 or the like. Therefore, the cover 212 of the first column member 21 is provided on the second column member 22 side in the length direction of the first column member 21. The cover 222 of the second column member 22 is provided on the opposite side of the first column member 21 in the length direction of the second column member 22.

[0066] In addition, the cover parts 212 and 222 have openings. The openings also function as holes for inserting the strip-shaped member 3 and the like into the connecting rod connector 10. In addition, the openings can also be used as the first fixing member 41 or the second fixing member 42 (see Figure 4 , Figure 5 ) installation location.

[0067] Strip member 3

[0068] The strip-shaped member 3 is arranged on the inner side of the first column member 21 and the second column member 22. When the first column member 21 is accommodated in the second column member 22, the strip-shaped member 3 is pressed between the cover portion 212 and the cover portion 222. On the other hand, when the first column member 21 extends and extends from the second column member 22 during use, it is in a stretched state. Therefore, the strip-shaped member 3 is preferably a member that is easy to bend, not easy to be tangled, and has high strength when stretched. A high-strength line or the like can be used as such a strip-shaped member. For example, various fishing lines or the like can be used, and in particular, polyethylene fishing lines or the like can be used.

[0069] The first fixing member 41 and the second fixing member 42

[0070] The first fixing member 41 is mounted on the cover portion 212 of the first column member 21 and fixed to the belt-shaped member 3. The second fixing member 42 is mounted on the cover portion 222 of the first column member 22 and fixed to the belt-shaped member 3.

[0071] The first fixing member 41 and the second fixing member 42 are both fixed to the belt-shaped member 3. And, as described above, the first fixing member 41 is mounted on the first column member 21, and the second fixing member 42 is mounted on the second column member 22. In addition, the length of the belt-shaped member 3 in the stretched state from the position where the first fixing member 41 is fixed to the position where the second fixing member 42 is fixed (corresponding to Figure 1 The length L1 in (c) is designed to be shorter than the length of the second column member 22 (corresponding to Figure 1 (c) length L22). Thus, even if the first column member 21 is pulled out, the strip-shaped member 3 is fixed to the first column member 21 and the second column member 22 respectively in the state of being extended to the length L1, so it cannot be pulled out further and stops at this position. Accordingly, even if the mark 211 of the pulled out first column member 21 is ignored and is not fixed by the clamp 223, the first column member 21 and the second column member 22 can be prevented from accidentally separating and falling off.

[0072] The length of the second column member 22 (corresponding to Figure 1 The length L22 in (c) corresponds to the length of the belt-shaped member 3 in the stretched state from the position where the first fixing member 41 is fixed to the position where the second fixing member 42 is fixed (corresponding to Figure 1The difference in length L1) in (c) can be appropriately set within a range that allows the first column member 21 to be properly pulled out and prevented from falling off. If the length L22 and the length L1 are used for explanation, "length L22-length L1" is preferably about 2 cm to 10 cm or about 3 cm to 8 cm. When determining the length (L22) based on the position where the first fixing member 41 is fixed and the position where the second fixing member 42 is fixed, each position can be measured based on the center of the first fixing member 41 in the length direction and the center of the second fixing member 42 in the length direction.

[0073] The first fixing member 41 and the second fixing member 42 are preferably each detachably fixed to the first column member 21 and the second column member 22. By making it detachable, the first column member 21 and the second column member 22 can also be separated. In normal use, in order to prevent accidental falling off and use it safely, it is also best to fix it in advance. On the other hand, depending on the use of the connecting rod, such as use in seawater, etc., maintenance such as cleaning and drying may be required after use. When performing such maintenance, the easily separable structure has the advantage of being able to easily clean each component and being able to replace it as needed.

[0074] The strip-shaped member is fixed to the first fixing member and the second fixing member so that it can be installed on the columnar member to prevent the columnar member from separating and falling off during use, and a combination that can be arranged in the columnar member can be used. For example, a structure in which a thread cutting process is performed in advance on the opening of the cover, the first fixing member and the second fixing member are installed on the thread together, and then the strip-shaped member is fixed by winding or wrapping it around a part thereof.

[0075] The first fixing member 41 and the second fixing member 42 can be composed of a combination of a first fixing member 411, 421 for fixing the strip-shaped member 3 and a stop screw member 412, 422 having a housing portion for housing the first fixing member 411, 421. By adopting this combination, the first fixing member 411, 421 can be pre-installed on the strip-shaped member 3, so it is easy to adjust the length interval (L1) of the first fixing member 41 and the second fixing member 42. In addition, since the stop screw members 412, 422 are used when installing to each column member, it is also easy to install to the cover part 212, 222. In addition, this combination of the first fixing member and the stop screw member has excellent processability, strength and productivity for a smaller member that is installed to the cover part of the column member while passing through the hollow part of the column member and is continuously arranged.

[0076] Figure 3 It is a schematic diagram of an example of the stop screw member of the present invention. Figure 4 A schematic diagram of an example of a connecting rod fixing auxiliary member of the present invention. Figure 1, 4 In the illustrated embodiment, the first fixing members 411 and 421 are rings, which are mounted on the belt-shaped member 3 with a predetermined length shorter than the length of the column member matched with the mounting position to prevent it from falling off.

[0077] Stop thread members 412, 422

[0078] The stop screw members 412 and 422 are provided with first grooves 4121 and 4221 along the length direction. The first grooves 4121 and 4221 are also along the length direction of the connecting rod, and the belt-shaped member 3 can be passed through these grooves. In addition, the stop screw members 412 and 422 also have second grooves 4122 and 4222 that intersect the length direction of the first grooves 4121 and 4221. In other words, they have grooves that are transverse to the main parts of the stop screw members 412 and 422. The second grooves 4122 and 4222 are accommodating parts for accommodating the first fixing members 411 and 421.

[0079] Figure 5 This is a schematic diagram for explaining an example of the operation of installing a fixing member on the cover portion of a column member according to the present invention. Here, an example of installing a strip-shaped member 3 and a first fixing member 41 on a first column member 21 is described. The opening portion of the cover portion 212 of the first column member 21 has an internal thread portion. And, the first fixing member 41 has an external thread portion adapted to the internal thread portion. The first fixing member 41 is a combination of a first fixing member 411 and a stop screw member 412. The first fixing member 411 is installed on the strip-shaped member 3 and accommodated in the accommodating portion of the stop screw member 412. As shown in FIG. Figure 5 As shown in (a), in this assembled state, the stopper screw member 412 having an external thread portion is pressed into the cover portion 212. Then, as shown in Figure 5 As shown in (b), when the stop screw member 412 is fully pressed in, the first fixing member 411 sandwiched in the accommodation portion is covered by the internal thread portion of the cover portion 212. Thus, the belt-shaped member 3 can be fixed to the first column member 21 by the first fixing member 41. By performing the same operation on the second column member 22, the belt-shaped member 3 can also be fixed to the second column member 22 by the second fixing member 42.

[0080] Extension rod

[0081] As described above, the connecting rod of the present invention has a connecting rod connector 10 structure, which at least combines the first column member 21 and the second column member 22, and the belt member 3 and the first fixing member 41 and the second fixing member 42 are combined to prevent the first column member 21 from extending beyond the length of the second column member 22. The connecting rod of the present invention, its appearance and use, etc. can be referred to non-patent document 1 ("Bi (registered trademark) Rod" of Lemega Co., Ltd.). The connecting rod usually has multiple stages of column members. The structure equivalent to the connecting rod connector 10 can be provided on all the column members of the connecting rod, or can be provided on only some of the column members.

[0082] Although in Figure 1 , etc. show a structure of connecting two column members as the connecting rod connector 10, but the structure using the connecting rod connector 10 of the present invention is also applicable to more-stage connections, and multiple connecting rod connectors can be connected by simple operations. The number of connections can be, for example, 3 or more, preferably 5 or more, and more preferably 8 or more. Although there is no particular upper limit for the connection, in general use, the length of the column member of each connecting rod connector can be optimized according to its use, and for example, it can be assumed that the maximum number of connections is about 30 or less.

[0083] Figure 6 1 is a schematic diagram of an example of a connecting rod of the present invention. Here, a connecting rod using a 10-stage column member is used as an example. Figure 6 In the embodiment of the present invention, a thick column member is used on the right side for hand-held use, while a gradually tapering column member is used on the left side.

[0084] Figure 7 1 is a schematic diagram for explaining an example of a method for fixing a connecting rod according to the present invention. Figure 6 In order to ensure that each column member does not fall off, a ring as a part of the fixing member is installed on the belt member at a distance shorter than the length of the thicker column member of the second column member among the adjacent column members. Figure 7 As shown in the cross-sectional view below, the ring is inserted and fixed to the threaded portion of the cover via a stopper screw member capable of accommodating the ring, whereby the belt-shaped member is mounted on the column member via a fixing member. Therefore, the entire connecting rod has a structure capable of preventing the column member from falling off.

[0085] Figure 8 to Figure 10 To make it easier to understand Figure 7 , Figure 8 Schematic diagrams are provided for the connecting rod shown. Figure 8 1 is a schematic diagram for explaining an example of a connecting rod of the present invention. Fig. 9 This is a schematic diagram for explaining an example of the operation of attaching the fixing member to the cover portion of the column member according to the present invention. Fig.10This is a schematic diagram for explaining an example of installation of the end of the handheld column member of the connecting rod of the present invention. Any object can be installed at the front end of the connecting rod for operation, etc. For example, it can be used as a pan head, bracket, etc. for mounting a camera, etc., for shooting at high places, underwater, and far away. The connecting rod can be used by hand or fixed on a tripod, etc. In addition, a controller, a bracket for mounting a smartphone, etc., a fixing belt, etc. can be set on the handheld column member, etc.

[0086] Figure 8 This is a diagram showing a state where the column member is accommodated and the column member at the front end is extended. In the accommodated state, the connecting rod of the present invention can become compact. Fig. 9 The flow chart shows a process of installing a wire on a ring, inserting the ring into a threaded rod-shaped fixing member, and screwing the fixing member into the cap of the column member. Fig.10 This shows a state where a relatively short threaded rod-shaped fixing member is used to fix the member to a nearby column member.

[0087] Fig.11 2 is a diagram showing an example of manufacturing the first fixing member and the second fixing member of the present invention. Fig.12 It is a diagram showing an example of operation of attaching the fixing member to the cover portion of the column member according to the present invention. Fig.13 This is a diagram showing an example of manufacturing a connecting rod connector according to the present invention.

[0088] In this way, a ring as a stopper is fixed at a predetermined position of a nylon or polyethylene wire having a diameter of about 1 mm to 3 mm, and after the ring and the wire are clamped, a clamp with a threaded structure is screwed into a cover at the bottom of each rod, so that the rods can be easily bundled and disassembled when disassembled. That is, it relates to a method for preventing falling off, in which a member such as a ring or a circular plate as a stopper is fixed at a plurality of predetermined positions, and the members are sequentially mounted on a threaded rod such as a so-called hexagon socket set screw with a cross groove, so that the bottoms of the rods are mutually bundled.

[0089] Industrial Applicability

[0090] The present invention can be used for a connecting rod capable of photographing at a high place, and has industrial applicability.

[0091] Reference numerals:

[0092] 10: connecting body for connecting rod; 21: first column member; 22: second column member; 211, 221: mark; 222: cover; 223: clamp; 3: belt member; 31: mounting portion; 41: first fixing member; 42: second fixing member; 411, 421: first fixing member; 412, 422: stopper screw member; 4121, 4221: first groove; 4122, 4222: second groove

Claims

1. A connecting rod, comprising a connecting rod connector formed by combining a hollow first column member and a hollow second column member that accommodates at least a portion of the first column member, the connecting rod comprising: a cover having an opening mounted to the first column member and the second column member; a strip-shaped member disposed inside the first column member and the second column member; a first fixing member mounted to the cover portion of the first column member and fixed to the belt member; a second fixing member mounted to the cover portion of the second column member and fixed to the belt member; The length of the belt-shaped member between the first fixing member and the second fixing member is shorter than the length of the second column member.

2. The connecting rod according to claim 1, wherein: The opening of the cover has an internal thread portion, and the first fixing member and the second fixing member have external thread portions adapted to the internal thread portion; The first fixing member and the second fixing member have a stopper screw member, and the stopper screw member has a first fixing member for fixing the belt-shaped member and a receiving portion for receiving the first fixing member; The stop screw member has a first groove portion provided along a length direction and a second groove portion intersecting with the length direction of the first groove portion, and the second groove portion is the accommodation portion for accommodating the first fixing member.

3. A connecting rod fixing auxiliary component, wherein: The link fixing auxiliary member has a belt-shaped member, a first fixing member fixed to the belt-shaped member, and a second fixing member fixed to the belt-shaped member, and the belt-shaped member between the first fixing member and the second fixing member is installed with a predetermined length.

4. A stop thread member, wherein: The stop screw member has a first groove portion provided along a length direction and a second groove portion intersecting with the length direction of the first groove portion.

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