CN113048367B - Tripod device - Google Patents

Abstract

Provided is a tripod device which is light and can be opened and closed by three-leg linkage. The tripod device is provided with a main foot (11) and two auxiliary feet (12), wherein the upper end of the auxiliary foot is connected with the main foot in a manner of opening and closing the foot, a sliding block (19) is arranged on the main foot in a freely sliding manner, a support rod (23) is connected with the sliding block in a freely rotating manner, the lower end of the support rod (23) is connected with each auxiliary foot in a freely rotating manner, the support rod is parallel or approximately parallel with the main foot in a state that the tripod device (2) is folded, and when the auxiliary foot is in a foot opening state, the sliding block is positioned at a position higher than the lower end connecting position of the support rod.

Description

tripod device

technical field

The invention relates to a tripod device for setting up measuring devices, cameras and the like.

Background technique

Conventionally, when installing a measuring device, a camera, etc., a tripod device is used.

When transporting the tripod device, each leg of the tripod device is closed and opened at the set position.

In the conventional tripod device, the upper ends of the legs are connected by hinges, and each leg independently rotates around the hinge. In this tripod device, the operator needs to open the legs one by one to an appropriate angle to set them up. Also, when carrying, the opened legs are closed one by one. Therefore, such a tripod device has poor operability and cannot be quickly installed and transported.

In addition, as a tripod device, a guide rod is provided at the center of the three legs, and a sliding portion is provided on the guide rod, and the sliding portion is connected to each of the legs through a stay rod. In this tripod device, by opening or closing one leg, the sliding part is lowered or raised along the guide rod, and the other two legs are also opened and closed in linkage via the sliding part and the support rod.

In a tripod device having such a guide bar, the weight becomes large, and transportation becomes a burden on the operator.

prior art literature

patent documents

Patent Document 1: Japanese Patent Laid-Open No. 2018-28465

Patent Document 2: Japanese Patent Laid-Open No. 2016-151423

Contents of the invention

The problem to be solved by the invention

The present invention provides a tripod device which is lightweight and can be opened and closed in conjunction with tripods.

means of solving problems

The present invention is a tripod device, which has one main foot and two auxiliary feet, the upper end of the auxiliary foot is connected with the main foot in a way that the foot can be opened and closed, and the main foot can slide freely on the main foot. A slider is provided in a manner in which a strut is connected to the slider in a freely rotatable manner, and the lower end of the strut is connected to the auxiliary legs in a freely rotatable manner. When the tripod device is folded, , the strut is parallel or substantially parallel to the main leg, and when the auxiliary leg is in an open state, the slider is located above the connecting position of the lower end of the strut.

In addition, in the tripod device of the present invention, there are also: handles, which are provided on the upper ends of the main legs in a freely slidable manner, cam blocks, respectively fixed on the auxiliary legs and provided with cam pieces, and block part, which is arranged on the handle and can be engaged with the cam piece; by pushing down the handle, the block part is engaged with the cam piece, and the opening of the auxiliary foot acts on the cam piece. The component force on the foot direction makes the auxiliary foot perform an initial movement in the foot-opening direction.

In addition, the tripod device of the present invention also has: a handle, which is arranged on the upper end of the main leg in a rotatable and slidable manner, and a stopper, which is arranged on the upper side of the handle on the upper end of the main leg , abutting against the handle and restricting the upward displacement of the handle, the spring bracket is arranged on the lower side of the handle and can slide freely on the main foot, and the spring is arranged between the slider and the spring bracket and the locking member is arranged on the handle; in the state where the auxiliary foot is folded, the spring is compressed, and the locking member can be fitted with the main foot by the rotation of the handle or The disengagement means that the locking member is disengaged from the auxiliary leg, and the auxiliary leg is initially moved in the foot-opening direction by the restoring force of the spring.

In addition, in the tripod device of the present invention, separate bodies are provided on the auxiliary legs, and the separate bodies are combined in a folded state of the tripod device to form a grip.

In addition, in the tripod device of the present invention, grips are respectively provided on the auxiliary legs.

In addition, in the tripod device of the present invention, a pipe frame is provided on the main leg, and when the auxiliary leg is in a closed state, the auxiliary leg is fitted into the pipe frame, and the pipe frame holds the Describe the closed state of the auxiliary foot.

In addition, in the tripod device of the present invention, a storage box is provided on the main legs.

The effect of the invention

According to the present invention, there is one main leg and two auxiliary legs, the upper end of the auxiliary leg is connected to the main leg in a manner that can open and close the leg, and the main leg is provided with a The slider is connected to the slider in a freely rotatable manner, and the lower end of the support rod is connected to the auxiliary legs in a freely rotatable manner. In the state where the tripod device is folded, the support The rod is parallel or substantially parallel to the main leg. When the auxiliary leg is in the open state, the slider is located above the position where the lower end of the strut is connected. Due to the above structure, it is lightweight. In addition, the three legs are linked to open and close, which is easy to set up and operate.

In addition, according to the present invention, a handle is provided on the upper end of the main leg in a slidable manner, cam blocks are respectively fixed on the auxiliary legs and provided with cam pieces, and a block part is provided on the upper end of the main leg. on the handle and can be engaged with the cam piece; by pushing down the handle, the block part is engaged with the cam piece, and acts on the cam piece in the opening direction of the auxiliary foot. The component force makes the auxiliary legs perform an initial movement in the direction of opening the legs. Due to the above structure, the tripod device can be easily opened only by pushing down the handle, thereby improving operability.

Further, according to the present invention, it also includes: a handle, which is rotatably and slidably arranged on the upper end of the main leg, and a limiting member, which is arranged on the upper side of the handle at the upper end of the main leg, Abutting against the handle and restricting the upward displacement of the handle, the spring bracket is arranged on the lower side of the handle and can slide freely on the main foot, and the spring is arranged between the slider and the spring bracket and the locking member is arranged on the handle; in the state where the auxiliary foot is folded, the spring is compressed, and the locking member can be fitted with the main foot by the rotation of the handle or disengagement, when the locking member is disengaged from the auxiliary leg, the auxiliary leg is initially moved in the foot-opening direction by the restoring force of the spring. Due to the above structure, the following excellent effects can be exerted, that is, The tripod device can be opened with a simple movement of the handle, improving operability.

Description of drawings

FIG. 1 is a schematic diagram of a measurement system having a tripod device according to this embodiment of the present invention.

Fig. 2A is an elevational view of the tripod device of this embodiment in a state of opening the legs, and Fig. 2B is an enlarged view of the connecting portion of the main leg and the auxiliary leg.

Fig. 3 is a top view of the tripod device in the state of opening the legs.

Fig. 4 is a partial view showing the upper ends of the main leg and the auxiliary leg.

Fig. 5 is a partial view showing a connecting portion of the auxiliary leg and the pole.

Figure 6 is an enlarged view of the pipe rack.

Fig. 7 is a diagram showing a foot-closed state of the first opening and closing mechanism.

Fig. 8 is a diagram showing a leg-open state of the first opening and closing mechanism.

Fig. 9 is a diagram showing a foot-closed state of the second opening and closing mechanism.

Fig. 10 is a diagram showing a leg-open state of the second opening and closing mechanism.

FIG. 11 is an explanatory view showing lock release in the second opening and closing mechanism.

Fig. 12 is an upper partial view of the first application example of the present embodiment.

Fig. 13 is an elevational view showing a first application example.

Fig. 14 is a partial plan view including the upper portion of the first application example.

Fig. 15 is an elevational view showing a second application example.

16A, 16B, and 16C are explanatory diagrams showing the setup of a measurement system having the tripod device of this embodiment.

Explanation of reference signs

1: Measuring system,

2: tripod device,

3: Measuring device,

5: Measuring device main body,

11: main foot,

12: Auxiliary foot,

19: slider,

20: hinge,

21: lower tube frame,

23: strut,

25: pipe rack,

31: opening and closing mechanism,

32: handle,

32b: handle portion,

33: block department,

35: cam block,

36: cam piece,

37: limit piece,

38: spring bracket,

39: Spring,

40: locking member,

41: handle,

41a: split body,

42: Grip,

45: storage box.

Detailed ways

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows a measuring system 1 with a tripod arrangement according to the present embodiment.

The measuring system 1 mainly includes a tripod device 2 and a measuring device 3 arranged on the upper end of the tripod device 2 , and the measuring device 3 is set on a reference point P (a known point) via the tripod device 2 .

The measuring device 3 has a support stand unit 4 and a measuring device main body 5 provided on the upper end of the tripod device 2 . As the measuring device main body 5 , a lightwave distance meter, a theodolite, a total station, etc. can be exemplified, and as the measuring device main body 5 , for example, a measuring device disclosed in Patent Document 1 can be used.

The support table unit 4 has a leveling device for leveling the measuring device main body 5 to be horizontal.

In addition, when the measuring device main body 5 has a posture detection device (not shown) for detecting the posture of the measuring device main body 5 with respect to the horizontal, the leveling device of the support table unit 4 is omitted. Among them, the posture detection device disclosed in Patent Document 2 can be used as the posture detection device.

Next, the tripod device 2 will be described with reference to FIGS. 2 to 4 .

In addition, in the following description, the case where this tripod device 2 is the tripod device 2 for a measuring device in which the measuring device 3 is installed will be described.

The tripod device 2 has a main foot 11 and two auxiliary feet 12 .

The main foot 11 and the auxiliary foot 12 can be the same shape and the same material, but at least the main foot 11 is made of metal, or is made of a member with the same strength and rigidity as metal manufacturing, preferably the The cross-sectional shape of the main leg 11 is circular.

The lower end of the main leg 11 is formed as a tip, and is set at the reference point. In addition, a spike 10 may also be provided at the lower end of the main foot 11 . The overall length of the main leg 11 is longer than that of the other auxiliary legs 12 , and the upper end protrudes from the auxiliary leg 12 , and the support unit 4 is fixed on the upper end of the main leg 11 .

A connecting block 13 is fixed at a position lowered by a required distance from the upper end of the main leg 11 . The connecting block 13 is externally embedded in the main leg 11 , and fixed on the main leg 11 by the locking member of the set screw 14 .

Two brackets 15 protrude from the connecting block 13 , and the two brackets 15 protrude in the direction of a desired angle centering on the axis of the main leg 11 . As desired angle, the angle between the two brackets 15 , 15 is, for example, 60°.

The upper pipe blocks 16 are respectively embedded and fixed on the upper ends of the auxiliary legs 12 . The upper pipe block 16 has two protruding connecting pieces 17 , 17 , the connecting pieces 17 , 17 are parallel, and the bracket 15 is fitted between the connecting pieces 17 , 17 . A connecting pin 18 is provided for fitting the connecting pieces 17 , 17 and the bracket 15 , and the upper pipe block 16 is rotatable around the connecting pin 18 .

The axis centers of the connecting pins 18 and 18 are set so as to be perpendicular to a line forming a central angle of 120° with the center of the main leg 11 as an apex. Therefore, the opening and closing directions of the auxiliary legs 12 and 12 are set so that the angle formed by each other is 120°, and the angle formed by the auxiliary leg 12 and the main leg 11 is also formed at 120°.

The connecting block 13, the bracket 15, the upper pipe block 16, the connecting pieces 17, 17, and the connecting pin 18 form a structure that enables the main leg 11 and the auxiliary leg 12 to be able to rotate freely. Hinge 20 connected by way. In addition, the structure of the hinge 20 is not limited to the above-mentioned structure, and the upper end of the said auxiliary leg 12 and the said main leg 11 may be rotatably connected.

Each auxiliary foot 12 is connected with the main foot 11 via the hinge 20, that is, via the upper pipe block 16, the connecting pin 18, and the connecting block 13, and the auxiliary feet 12 can be connected with the connecting pin respectively. 18 as the center to rotate relative to the main leg 11. In addition, the auxiliary leg 12 can be folded around the connecting pin 18. In the folded state of the auxiliary leg 12, the main leg 11 and the auxiliary leg 12 become parallel or substantially parallel, and are in close contact or The almost coherent state.

The slider 19 is slidably fitted on the main leg 11 . The slider 19 has a clamping mechanism 22 , and the slider 19 can be fixed at any position of the main leg 11 through the operation of the clamping mechanism 22 .

Down pipe blocks 21 are respectively fitted and fixed on the auxiliary legs 12 . Each lower tube block 21 is connected to the slider 19 through a strut 23, one end of the strut 23 is connected to the slider 19 in a freely rotatable manner, and the other end of the strut 23 is connected to the lower The pipe block 21 is connected in a rotatable manner.

In addition, the slider 19 is located above the lower tube block 21, and the connecting length between the slider 19 and the lower tube block 21 determines the opening angle of the main leg 11 and the auxiliary leg 12. .

In FIG. 2 , if the slider 19 is lowered downward in the state where the clamping mechanism 22 is released, that is, the slider 19 is free to slide, the auxiliary leg 12 Pushed by the strut 23 relative to the main leg 11, the main leg 11 and the auxiliary leg 12 are opened. The connection length between the slider 19 and the lower tube block 21 is determined in the following manner, that is, when the main leg 11 and the auxiliary leg 12 are opened to the maximum, the slider 19 At a position above the lower pipe block 21, the stay 23 is in an inclined state.

Since the main leg 11 and the two auxiliary legs 12 are connected by the struts 23 respectively, the opening angle between the main leg 11 and the auxiliary legs 12 is determined by the position of the slider 19 , or, the position of the slider 19 is determined by the opening angle between the main foot 11 and the auxiliary foot 12 . Therefore, by moving the slider 19 up and down, the main leg 11 and the auxiliary leg 12 are opened and closed, or one of the auxiliary legs 12 is opened and closed relative to the main leg 11. , to make the three legs of the main leg 11 and the auxiliary leg 12 open and close integrally.

In the state where the main leg 11 and the auxiliary leg 12 are opened at a predetermined angle, that is, in the state where the tripod device 2 can stand on its own stably, if necessary, the slide can be moved by the clamping mechanism 22. Block 19 is fixed on said main foot 11 .

In addition, the maximum opening of the tripod device 2 is determined by the length of the strut 23, however, in order to prevent the tripod device 2 from being over-opened, it is possible to set on the main foot 11 to limit the slider 19 stoppers that move downwards.

In the case of carrying, the main legs 11 and the auxiliary legs 12 are folded, but the main legs 11 are provided with a pipe frame 25 to maintain the folded state.

This tube holder 25 is demonstrated with reference to FIG.5, FIG.6.

In the state where the main leg 11 and the auxiliary leg 12 are folded, the pipe frame 25 is fixed to the main body below the lower pipe block 21 without interfering with the lower pipe block 21 . Feet 11.

The pipe frame 25 has a base portion 26 fitted with the main leg 11, two arm portions 27 extending from the base portion 26, and pipe gripping portions 28 respectively arranged at the front ends of the arm portions 27. The portion 27 extends in the same direction as the two brackets 15 . The front end of the tube holding portion 28 is cut off to a required width and opened, and the cut width is slightly narrower than the outer shape of the auxiliary leg 12 .

In addition, if the auxiliary leg 12 is pushed into the pipe grip portion 28, the pipe grip portion 28 is elastically deformed, the auxiliary leg 12 is fitted into the pipe grip portion 28, and the pipe grip portion 28 The elastic force holds the auxiliary foot 12 .

As shown in FIG. 6 , the folded state of the main leg 11 and the auxiliary leg 12 is maintained by the pipe frame 25 in a state where the auxiliary legs 12 , 12 are fitted to the pipe gripping portions 28 , 28 .

In addition, the base portion 26 may also be able to slide relative to the main leg 11 and be fixed in place by a stop screw 29 .

In addition, when the tripod device 2 is transported, two of the main legs 11 and the auxiliary legs 12 are held simultaneously. Or if the tripod device 2 etc. is bound by straps, the tube holder 25 can be omitted.

In the case of opening the legs of the tripod device 2, once each leg starts to move in the direction of opening, if the tripod device 2 is tilted, the legs (auxiliary legs 12) are naturally opened by the weight of the legs (auxiliary legs 12), or Can be easily opened by applying slight force.

However, when the legs are opened from the bound state, it is necessary to apply an initial motion to each foot in order to move each foot in the opening direction (for displacing each foot in the away direction). In particular, when the pipe frame 25 is provided and the auxiliary leg 12 is held by the pipe frame 25 , it is necessary to apply an external force to the auxiliary leg 12 to separate from the pipe frame 25 .

In the simplest case, force can be applied by holding one of the main foot 11 and the auxiliary foot 12 with one hand and opening the other foot.

In this case, both hands are required or a change of hands is required.

In the embodiment described below, an opening and closing mechanism is provided, and the tripod device 2 can be easily initially moved in the opening direction with one hand.

Hereinafter, a first opening and closing mechanism applicable to this embodiment will be described with reference to FIGS. 7 and 8 .

The opening and closing mechanism 31 shown in FIG. 7 and FIG. 8 is provided on the lower side of the hinge 20 at the upper ends of the main leg 11 and the auxiliary leg 12 . In addition, in Fig. 7 and Fig. 8, the auxiliary legs 12, 12 are located at overlapping positions, and only the auxiliary legs 12 in front of them can be seen in the figures.

A butterfly-shaped handle 32 is provided on the upper end of the main leg 11 in a manner to slide freely on the main leg 11 . The handle 32 has a bearing portion 32a into which the main leg 11 fits and a handle portion 32b protruding symmetrically from the bearing portion 32a. The handle portion 32b is frame-shaped and can be held by one or both hands.

In the state where the main leg 11 and the auxiliary leg 12 are folded, the handle 32 is stored on the upper part of the main leg 11, and in the stored state, one handle portion 32b passes between the auxiliary legs 12, 12. and accommodated between the upper pipe block 16 and the cam block 35 (described later) provided on the auxiliary leg 12 . In addition, the handle part 32b may abut against the cam block 35, and the cam block 35 restricts the downward movement of the handle part 32b, and the handle 32 may be kept in a housed state, or, although not shown, , however, a spring may be provided between the connection block 13 and the bearing portion 32a to support the self-weight of the handle 32 .

During transportation, the handle 32 is used to hold and support the tripod device 2 to improve the operability during transportation.

In the figure, block portions 33 protruding toward the auxiliary legs 12 are respectively formed on the front side and the opposite side at the lower end portion of the bearing portion 32a. The directions in which the two block portions 33, 33 protrude are the same or substantially the same as the directions in which the brackets 15, 15 protrude (see FIG. 4). In addition, the position where the block portion 33 is provided is not limited to the lower end portion of the bearing portion 32a, and may be a position where the lower end portion of the handle portion 32b or the like engages with a cam piece 36 described later.

The cam block 35 is attached and fixed so as to be located at a desired position of the auxiliary leg 12 , that is, located below the stored handle 32 . On the cam block 35 , a cam piece 36 protruding toward the center of the main leg 11 is protruded. The cam piece 36 is located below the block portion 33 and is capable of engaging with the block portion 33 .

In addition, the shape of the cam piece 36 is formed in a shape in which the upper surface is inclined downward, and when the block portion 33 contacts the cam piece 36 and the cam piece 36 receives a downward force from the block portion 33 Under certain circumstances, the component force acting on the cam piece 36 toward the outside (the direction in which the cam block 35 moves away from the main leg 11), preferably the component force acting on the cam piece 36 in the direction of opening the auxiliary leg 12. force.

Next, the opening and closing operation of the opening and closing mechanism 31 will be described.

When the handle 32 is pushed down from the state where the main leg 11 and the auxiliary leg 12 are folded (see FIG. 7 ), the block portion 33 comes into contact with the cam piece 36, and further Pushing down, the cam block 35 (the auxiliary leg 12 ) is kept away from the main leg 11 through the interaction between the block portion 33 and the cam piece 36 .

That is, by pushing down the handle 32, the auxiliary leg 12 is initially moved in the kick-opening direction. And, in the case where the auxiliary leg 12 is held by the pipe frame 25 , by pushing down the handle 32 , the auxiliary leg 12 is detached from the pipe frame 25 .

In addition, in order to make the opening and closing operation of the opening and closing mechanism 31 more effective, as shown in FIGS. Since the auxiliary leg 12 acts an upward force in the foot-opening direction due to gravity, the initial movement (the foot-opening movement of the opening and closing mechanism 31 ) becomes easy. And, after the initial movement, the auxiliary foot 12 performs the kick-opening movement with its own weight due to the force of gravity. Furthermore, by lowering the handle 32, the slider 19 can be moved downward, and the auxiliary leg 12 can be opened.

Therefore, the tripod device 2 can be opened by moving the handle 32 downward.

In addition, the shape of the handle 32 is not limited to the above-described butterfly shape, and may be various shapes. For example, it may be a shape in which the handle portion 32b on which the block portion 33 is not provided is omitted, or a shape such as a handle 41 (described later) shown in FIG. 12 may be used. In short, the block portion 33 may be provided so as to be free to slide relative to the main leg 11 .

Hereinafter, a second opening and closing mechanism applicable to this embodiment will be described with reference to FIGS. 9 to 11 . In addition, in FIGS. 9 to 11 , the same members as those shown in FIGS. 7 and 8 are given the same reference numerals, and description thereof will be omitted.

The handle 32 is fitted with the main leg 11 in a freely rotatable and slidable manner, and the main leg 11 is provided with a limiting member 37 that restricts the handle 32 from moving upward.

On the lower side of the bearing portion 32a, a spring bracket 38 externally fitted on the main leg 11 is provided. The spring bracket 38 is separated from the bearing portion 32a (that is, the handle 32 ), the spring bracket 38 abuts on the bearing portion 32a, is rotatable relative to the handle 32, and is free relative to the main leg 11. slide.

A slide block 19 is provided on the lower side of the spring support 38 , and a plurality of springs 39 are provided between the slide block 19 and the spring support 38 . A plurality of these springs 39 are provided at predetermined intervals over the entire circumference. In addition, a plurality of compression coil springs embedded with the main leg 11 can also be arranged between the slider 19 and the spring bracket 38 . A lock member 40 is provided on one side of the lower frame of the handle portion 32 b at a portion facing the auxiliary leg 12 . Preferably, the locking member 40 is made of elastic synthetic resin.

When the tripod device 2 is folded, the locking member 40 is fitted to one of the auxiliary legs 12 to restrict the displacement of the auxiliary leg 12 in the leg-opening direction (direction A in FIG. 11 ).

As shown in FIG. 11 , the locking member 40 has a concave portion 40 a fitted with the auxiliary leg 12 , and the tongue piece 40 b forming the concave portion 40 a is perpendicular or substantially perpendicular to the displacement of the auxiliary leg 12 in the foot opening direction. extended in the direction.

FIG. 9 shows a folded state of the tripod device 2 . In the folded state, the locking member 40 is fitted into the auxiliary leg 12 to lock the auxiliary leg 12 (see FIG. 11 ).

In addition, when the tripod device 2 is folded, the strut 23 is parallel or substantially parallel to the main leg 11 , and the upper end of the strut 23 is located at the uppermost position. In addition, the slider 19 connected to the upper end of the stay 23 is also located at the uppermost position.

When the slider 19 is at the uppermost position, the distance between the slider 19 and the spring support 38 is the smallest, and the size of the distance is determined by the position of the limiting member 37 . That is, the uppermost position of the handle 32 is determined by the stopper 37 , and the uppermost position is determined by the contact of the spring bracket 38 with the handle 32 (bearing portion 32 a ).

When the distance between the slider 19 and the spring holder 38 is minimized, the spring 39 is compressed and a rebound force due to the compression is generated. This resilience becomes a force sufficient to give the tripod device 2 an initial movement for opening.

In addition, since the locking member 40 locks the auxiliary foot 12, the displacement of the auxiliary foot 12 is restricted, that is, the displacement of the slider 19 is restricted, and the spring 39 is maintained in a compressed state. That is, the tripod device 2 is maintained in a folded state.

When the tripod device 2 is installed, that is, when the legs of the tripod device 2 are opened, the handle part 32b is rotated around the axis of the main leg 11, and the locking member 40 is moved from The auxiliary foot 12 is disengaged. In FIG. 11 , by rotating the handle portion 32 b in the B direction (counterclockwise direction) in the figure, the lock member 40 also rotates integrally with the handle portion 32 b and is detached from the auxiliary leg 12 . .

Since the restraint of the auxiliary leg 12 in the direction A (opening direction) is released, the initial movement of the opening action is performed by the resilience of the spring 39 .

After performing the initial action, by pulling the handle 32 downward, the slider 19 moves downward via the spring bracket 38 and is supported by the strut 23 to perform the opening and closing of the auxiliary foot 12. open action.

In addition, in the second opening and closing mechanism, the handle 32 is rotated by a predetermined angle in the horizontal direction from the state where the tripod device 2 is folded, and thereafter, the handle 32 is pushed downward to perform The opening action of the tripod device 2.

Next, a first application example of this embodiment will be described with reference to FIGS. 12 to 14 . In addition, in FIGS. 12 to 14 , the same members as those shown in FIGS. 2 and 3 are given the same reference numerals, and description thereof will be omitted.

In addition, FIG. 12 shows the state in which the tripod device 2 is folded, and FIGS. 13 and 14 show the state in which the legs of the tripod device 2 are opened.

In this application example, a handle 41 is provided for improving operability when carrying the tripod device 2 and installing the tripod device 2 .

For ease of operation, the handle 41 is provided at a position equivalent to the height of the operator's chest.

The handle 41 is a structure divided into two by split bodies 41a, 41b, and each split body 41a, 41b is separately installed on the auxiliary legs 12, 12, respectively.

Since the said split bodies 41a and 41b have bilaterally symmetrical shapes, the one split body 41a will be demonstrated.

A rod 43 a is fixed to the upper end of the semi-cylindrical grip portion 42 a, and the rod 43 a is fixed to the auxiliary leg 12 . In addition, the structure may be such that the rod 43a is fixed to a cylindrical body (not shown), the cylindrical body is fitted with the auxiliary leg 12, and the grip portion 42a is attached to the cylindrical body via the cylindrical body. On the said auxiliary foot 12. The holding portion 42 a is parallel or substantially parallel to the auxiliary leg 12 .

When the auxiliary legs 12 and 12 are closed, the left and right grip parts 42 a and 42 b are combined to form a cylindrical handle 42 . The handle 42 preferably has a diameter that can be grasped with one hand. In addition, the shape of the handle 42 is not limited to a cylindrical shape, and may be an oval shape and a size that are easy to hold. In addition, depressions, grooves, etc. may be appropriately formed on the joint line when the grip parts 42a and 42b are combined, so that the grip parts 42a and 42b can be easily separated.

In addition, in the state where the tripod device 2 is closed (see FIG. 12 ), it is easy to carry it by holding the handle 42. In addition, when the tripod device 2 is opened at the installation position of the tripod device 2 , re-hold the grip parts 42a, 42b with both hands, and open the auxiliary legs 12, 12, so that the main legs 11 can also be linked and opened, and the setting of the tripod device 2 becomes easy .

In addition, a storage box 45 may be provided on the main leg 11 . Items necessary for measurement or items attached to the measurement device 3 can be stored in the storage box 45 . For example, if the power supply etc. attached to the measuring device 3 can be accommodated, when the installation position is changed, it is not necessary to carry the tripod device 2 and the power supply separately, which improves convenience.

Fig. 15 shows a second application example of this embodiment.

In this second application example, a grip 47 having the same function as the grip 42 shown in the first application example is provided directly on the auxiliary foot 12 .

As the material of the grip 47, a material that is easy to grip and non-slip, such as soft synthetic resin or rubber, is preferable.

The installation operation of the measurement system 1 having the tripod device 2 of this embodiment will be described with reference to FIGS. 1 , 16A, 16B, and 16C.

The front end of the main pin 11 is provided with a spike 10, the front end of the spike 10 is at a known distance from the measuring reference point of the measuring device 3, or the axis of the main pin 11 is at a known distance from the measuring reference point of the measuring device 3. The point is a known relationship, and the relationship between the axis of the main leg 11 and the distance measuring optical axis of the measuring device 3 is also known, and the measuring device 3 is set in a fixed manner relative to the tripod device 2 . In the measuring device 3 in this embodiment, a posture detection device (not shown) is provided, and a leveling device is not provided.

In the state where the tripod device 2 is folded, the tip of the spike 10 is set at the measurement point P (see FIG. 16A ).

With the distance-measuring optical axis facing one side of the measurement object and the front end of the spike 10 fixed, the tripod device 2 is opened, and if necessary, the clamping mechanism 22 (refer to FIG. 7 ) The slider 19 is fixed on the main foot 11.

The front end of the spike 10 is a known distance from the measuring reference point of the measuring device 3, and the inclination (posture) of the measuring device 3 relative to the axis of the main pin 11 can also be determined by the posture detection device. Therefore, by making the front end of the spike 10 coincide with the measurement point, the three-dimensional coordinates of the measurement reference point of the measurement device 3 relative to the measurement point P can be obtained, and the measurement result of the measurement device 3 can be corrected to the following The above measurement point P is the reference measurement result.

In addition, the installation operation of setting the tripod device 2 at the measurement point P is very simple, and the measurement by the measuring device 3 can be started immediately after the tripod device 2 is installed.

In addition, in the above-mentioned embodiments, the tripod device 2 is applied to the measuring device 3 , but of course it can be applied to various devices such as cameras and video cameras. In addition, when installing a camera, video camera, etc., the spikes can be omitted.

Claims (12)

1. A tripod device, characterized in that, It has a main foot and two auxiliary feet, the upper end of the auxiliary foot is connected with the main foot in a manner that can open and close the foot, and a slider is set on the main foot in a manner that can slide freely, and the support The rod is rotatably connected to the slider, the lower end of the stay is rotatably connected to each of the auxiliary legs, and the stay is connected to the tripod in a folded state. The main legs are parallel or roughly parallel, and when the auxiliary legs are in an open state, the slider is located above the connecting position of the lower end of the strut, The tripod device also has: a handle is provided on the upper end of the main foot in a freely slidable manner, cam blocks, respectively fixed on the auxiliary feet and provided with cam pieces, and a block part, which is arranged on the handle and can engage with the cam piece; By pushing down the handle, the block portion is engaged with the cam piece, and the component force of the auxiliary leg in the direction of opening the foot acts on the cam piece, so that the auxiliary foot moves in the direction of opening the foot. initial action. 2. The tripod device of claim 1, wherein: Separate bodies are respectively provided on the auxiliary legs, and the separate bodies are combined to form a grip when the tripod device is folded. 3. The tripod device of claim 1, wherein: Handles are respectively arranged on the auxiliary feet. 4. The tripod device according to any one of claims 1 to 3, characterized in that, A tube frame is provided on the main leg, and when the auxiliary leg is in a closed state, the auxiliary leg is fitted into the tube frame, and the tube frame maintains the closed state of the auxiliary leg. 5. The tripod device according to any one of claims 1 to 3, characterized in that, A storage box is arranged on the main foot. 6. The tripod device of claim 4, wherein: A storage box is arranged on the main foot. 7. A tripod device, characterized in that, It has a main foot and two auxiliary feet, the upper end of the auxiliary foot is connected with the main foot in a manner that can open and close the foot, and a slider is set on the main foot in a manner that can slide freely, and the support The rod is rotatably connected to the slider, the lower end of the stay is rotatably connected to each of the auxiliary legs, and the stay is connected to the tripod in a folded state. The main legs are parallel or roughly parallel, and when the auxiliary legs are in an open state, the slider is located above the connecting position of the lower end of the strut, The tripod device also has: a handle rotatably and slidably provided on the upper end of the main leg, The limiting member is arranged on the upper side of the handle at the upper end of the main foot, abuts against the handle and limits the upward displacement of the handle, a spring support, arranged on the underside of the handle, capable of sliding freely on the main foot, a spring disposed between the slider and the spring bracket, and a locking member disposed on the handle; In the state where the auxiliary leg is folded, the spring is compressed, the lock member can be fitted into or disengaged from the main leg by rotation of the handle, and the lock member can be disengaged from the auxiliary leg. , by means of the restoring force of the spring to make the auxiliary foot perform an initial movement in the direction of opening the foot. 8. The tripod assembly of claim 7, wherein: Separate bodies are respectively provided on the auxiliary legs, and the separate bodies are combined to form a grip when the tripod device is folded. 9. The tripod assembly of claim 7, wherein: Handles are respectively arranged on the auxiliary feet. 10. The tripod device according to any one of claims 7 to 9, wherein: A tube frame is provided on the main leg, and when the auxiliary leg is in a closed state, the auxiliary leg is fitted into the tube frame, and the tube frame maintains the closed state of the auxiliary leg. 11. The tripod device according to any one of claims 7 to 9, characterized in that, A storage box is arranged on the main foot. 12. The tripod assembly of claim 10, wherein: A storage box is arranged on the main foot.

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