JPH044970Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to a shoulder belt, and in particular to a shoulder belt for a surveying instrument tripod used for moving and transporting a surveying instrument tripod. .

[Prior Art] A hinged tripod used for mounting a surveying instrument has been widely used since it allows the surveying instrument to be quickly installed and removed.

As shown in FIG. 2A, this hinged tripod S for a surveying instrument consists of leg parts 30, 30,
30 consists of a movable leg 31 and a guide rod 32, and the pair of guide bars 32 that guide the movable leg 31 are connected to the leg head 34.
is attached in a hinged manner via a hinge fitting 33. Furthermore, a telescopic fixture 35 is attached to the lower end portions of the pair of guide rods 32.
5 is provided with a telescopic fixing screw 36. After setting the movable leg 31 to a predetermined length, the telescopic fixing screw 3
6 to fix the movable legs 31, open each leg part 30, and set it in an appropriate position. When retracting the tripod S, close the three legs 30 as shown in FIG.
Move it along 2 to shrink it. An engaging portion 37 provided on the hinge fitting 33 and a shoulder belt 38
The other end side 38 of the belt 38 is engaged with one end of the belt 38.
a through an opening (not shown) of an engaging part 35a provided on the telescopic fixture 35, and pass the collection belt 39 through a loop 39b formed at the end 38a. The collection belt 39 has a stop buckle 39b formed at one end and a belt hole 39a that engages with a pin 39c of the stop buckle 39b at the other end.
The legs were tied together with a rope.

[Problem to be solved by the invention] In the above-mentioned conventional technology, each time the three legs 30 are moved or transported from one measurement point to another, the three legs 30 are pulled together and the ring of the belt fastening buckle 39b is removed. Pass the other end of the collection belt 39 through the belt hole 3
It is necessary to insert the pin 39c into the tripod 9a, making it troublesome and inconvenient to move and transport the tripod. Especially in the winter, if the belt is made of vinyl or the like, it will become hard, the pin holes in the belt will not last long, and the tripod legs will come apart and get out of control. In this case, the telescoping legs were made as short as possible, the buckle pins were aligned, and the legs were tied together. At this time, it was difficult to carry the item if it was tied loosely, so it was a hassle to have to tie it properly. As a result, the legs of the tripod have to be held together or dragged one by one to be moved and transported, and the shoulder belt 38 cannot be used sufficiently.

The present invention was developed in view of the above-mentioned problems, and it is a technical object to provide a shoulder belt for a tripod for a surveying instrument that has a simple structure, can secure the legs of the tripod, and can be easily moved and transported. Take it as a challenge.

[Means for solving the problem] The present invention has been made to solve the above technical problem, and the shoulder belt of the tripod for a surveying instrument according to the present invention is connected to the leg head by a hinge. In the shoulder belt for a surveying instrument used in a hinged tripod for a surveying instrument, one end of the shoulder belt is engaged with an engaging part formed on the leg head side, and the other end is engaged with an engaging part formed on the leg head side. The engagement portion has an opening formed on the leg side, and is connected to a loop-shaped binding string that loosely fits the retaining member through the opening, and the engagement portion formed on the other end of the belt and the leg side. The technical solution is to provide a tightening member with a loop-shaped tie string inserted between the joint and the joint.

[Operation] Next, the operation of the present invention having the above-described configuration will be explained based on an example.

As shown in FIG. 1B, in the present invention, before holding the shoulder belt 8, the three legs 2 are bundled and put into the loop of the loop-shaped tie string 9, and then the shoulder belt 8 is held. lift up. When the shoulder belt 8 is lifted upward, the loop-shaped binding string 9 moves to the engaging part 6a side provided on the extensible fixture 6 side, and loops while binding the leg part 2 of the tripod S. is made smaller and each leg 2 is tied down. In this way, the engaging portion 6a
The opening 6b functions to make the loop smaller so that the tie string 9 does not become slack. and,
The tightening member 22, which has a hole 21 through which the two binding strings 9 forming the loop are passed, is moved to the distal end side of the leg section 2 to make the loop at the distal end side of the leg section 2 smaller so that the loop does not slacken. do. Therefore, even when the tripod S is lowered, the loops that bind the leg portions 2 are held without loosening.

In addition, since a slip-off prevention member (slip-off prevention metal fitting) 10 is loosely fitted to the tie string 9, the tie string 9 itself does not slip out of the opening 6b of the engaging portion 6a.

As described above, according to the present invention, the shoulder belt can be used effectively with a simple configuration, and the positioning of the belt and buckle pins, which was previously required, is no longer necessary, and compared to the conventional shoulder belt, the shoulder belt can be used effectively. It is extremely easy to collect and tie the tripod legs, making it particularly suitable for surveying where rapid movement and transportation over a predetermined distance from one measurement point to another is required.

[Example] Hereinafter, an example of the present invention will be described based on the drawings.

FIG. 1 shows an embodiment of the present invention,
As shown in FIG. 1A, the tripod S of this example has a leg head 1
and three leg portions 2 are connected via a hinge 3 so as to be openable and closable, and each leg portion 2 is formed from a pair of guide rods 4 and a movable leg 5. Guide rod 4
A telescopic fixture 6 is disposed at the lower end (on the opposite side to the leg head 1), and this fixture 6 is provided with a fixing screw 7.

A hinge 3 formed at one end of the leg head 1 side, in this example, the upper end of the guide rod 4, is provided with a gate-shaped, U-shaped protrusion 3a as an engaging part. One end of the belt 8 is secured to.

On the other hand, on the telescopic fixture 6 provided at the lower end of the guide rod 4, a U-shaped engagement portion 6a having a gate shape is integrally formed with the telescopic fixture 6. An opening 6b is formed in the engaging portion 6a, and a loop-shaped binding cord 9 (two) connected to the end 8a of the belt 8 is passed through the opening 6b. This binding string 9 is provided with a slip-off prevention member (a slip-off prevention metal fitting in this example) 10 on the leg end end side of the fixing metal fitting 6. This slip-off prevention fitting 10 has a hole 10a formed approximately in the center, and a tie string 9 is inserted through this hole 10a to hold it. Note that the material of the binding cord 9 in this example does not matter as long as it has a predetermined tensile strength.

In addition, the portion of the binding cord 9 located between the end portion 8a of the belt 8 and the engaging portion 6a is provided with a hole 21 through which two binding cords 9 are passed together, as shown in FIG. 1C. Tightening member (in this example, a donut-shaped disk) 22
is installed. This tightening member 22 is attached to the tripod S
After putting each leg 2 (not shown) of the tripod into the loop, the tightening member 22 is moved to the tip side of the leg 2 to prevent the loop from sagging even when the tripod S is lowered. .

Note that if the loop portion is formed of an elastic body such as rubber having a predetermined tensile strength, the leg portion can be tied together by the elasticity of the loop portion. In this way, various technical additions can be made to the present invention.

[Effects of the invention] As explained above, when the shoulder belt according to the invention is lifted, the loop-shaped binding string moves to the engaging part provided on the leg side, and connects each leg of the tripod. While gathering the legs, make the loop smaller and tie each leg. In this way, the opening of the engagement part is arranged through the binding string forming the loop, and serves to reduce the size of the loop so that the binding string does not slacken, and automatically closes the tip of the leg. A tripod can be tied down. In this way, the present invention allows for effective use of the shoulder belt due to its simple configuration, eliminates the need to align the pins of the belt and buckle, which was previously required, and allows the tripod legs to be assembled more easily than the conventional shoulder belt. It is extremely easy to tie down, making it easy to move and transport in surveys that require quick movement and transportation over a specified distance from measurement point to measurement point, and its practical effects are tremendous. .

[Brief explanation of the drawing]

FIG. 1 shows an embodiment of the present invention,
Fig. 1A is a schematic explanatory diagram, Fig. 1B is an explanatory diagram of a transportation state, Fig. 1C is an explanatory diagram showing an example of a tightening member, Fig. 2 shows a conventional example, and Fig. 2A is an explanatory diagram of a tripod installed state. Figure 2B is an explanatory diagram of the binding. 1... Leg head, 2... Leg, 3... Hinge, 3a
...Engaging portion, 4...Guide rod, 5...Movable leg, 6...
... Telescopic fixing fitting, 6a ... Engagement part, 6b ... Opening, 7 ... Fixing screw, 8 ... Shoulder belt, 9 ...
...Tie-off string, 10.. Removal prevention member (removal prevention metal fitting), 22.. Tightening member, S.. Hinged tripod for surveying instrument.

Claims (1)

[Scope of utility model registration request] In a shoulder belt for a surveying instrument used for a hinge type tripod for a surveying instrument having a leg connected to a leg head by a hinge, the shoulder belt has an engaging portion formed at one end on the leg head side. The other end of the engaging part has an opening formed on the leg side, and is connected to a loop-shaped binding string that loosely passes through the retaining member through the opening of the engaging part, and the other end of the belt is connected to the other end of the belt. A shoulder belt for a tripod for a surveying instrument, characterized in that it comprises a tightening member disposed by inserting the loop-shaped tie string between the engagement part formed on the leg side.