JP6475299B1 - Prism fixture device - Google Patents

Abstract

The present invention provides a prism instrument device that reduces a surveying error associated with a change in surveying instrument or reflecting prism. A substantially U-shaped prism holder that is fixed to a stepladder, left and right cylindrical guide shafts that are protruded and fixed outward from the central portions of both U-shaped side walls of the prism holder, and the cylindrical guide shafts Left and right slide flat surfaces formed by cutting the left and right semicircular arc portions in the vertical direction, a prism fixture housed and supported via the left and right cylindrical guide shafts inside the substantially U-shape of the prism holder, and the prism fixture The slide for the cylindrical guide shaft is formed by connecting a slit for turning the slide formed in the front and rear direction on the left and right sides of the lens, a circular hole for rotating the prism device formed at a plurality of positions of the slit, and the circular holes of the slit. By configuring the slide portion with a width that allows only a flat plane to be inserted, a prism instrument device that reduces the measurement error associated with the change of the surveying instrument or the reflecting prism can be provided. [Selection] Figure 1

Description

  The present invention relates to a prism apparatus that can easily and accurately adjust a position of a surveying prism.

  Conventional surveying technology uses a laser beam to measure the distance and angle between the surveying point and the observation point, and the reflecting prism with a corner cube reflector structure that reflects the incident light as the target of the surveying point in the incident direction Is used.

  This reflection prism is mounted and fixed on the top of a tripod provided at the observation point, but the reflection prism and the surveying instrument that emits the laser beam have a pair of relations, and if the surveying instrument is changed, it changes according to the surveying instrument. Therefore, it is necessary to adjust the front / rear position of the reflecting prism with respect to the surveying instrument.

  In addition, the automatic collimation function of the surveying instrument causes an error in the survey results if the prism apex of the reflecting prism does not exist on the vertical straight line of the surveying point. Therefore, when the reflecting prism is changed, the prism of the reflecting prism is changed. It is necessary to adjust the position of the apex to match the survey point.

  In the following Patent Document 1, upper and lower prisms that reflect laser light emitted from a light wave range finder in the incident direction are accommodated in a prism housing, and both prisms are placed on the right side surface of the prism housing as a survey point pole. An attachment mechanism for attaching to the housing is rotatably provided. According to this configuration, when the mounting mechanism is rotated, the distance between the pole and both prisms is changed, and the measurement error when the surveying instrument is changed can be reduced.

Japanese Patent Laid-Open No. 10-26662

  However, in Patent Document 1, a prism housing that can be changed in position with respect to a predetermined support pole is attached. Therefore, when the surveying instrument is changed, the position of the reflecting prism is changed to a positional relationship corresponding to the surveying instrument. However, it was difficult to cope with survey errors caused by automatic collimation.

Therefore, an object of the present invention is to provide a prism instrument device that can easily and accurately realize the position adjustment of the reflecting prism corresponding to the change of the surveying instrument and the automatic collimation of the surveying instrument.

  In the prism instrument device for surveying of the present invention, a substantially U-shaped prism holder fixed to a stepladder, and left and right cylindrical guides that protrude outwardly and fix to the central portions of both U-shaped side walls of the prism holder. Shaft, left and right slide flat surfaces formed by cutting left and right semicircular arc portions of the cylindrical guide shaft in the vertical direction, and a prism housed and supported via the left and right cylindrical guide shafts in a substantially U-shaped interior of the prism holder A slide part for sliding rotation formed in the front-rear direction on the right and left sides of the prism instrument, a circular hole part for rotating the prism instrument formed at a plurality of positions of the slide part, and between each circular hole part of the slide part And a slit that has a width that allows only the flat sliding surface of the cylindrical guide shaft to be inserted.

  In the prism instrument device for surveying according to the present invention, the prism instrument has a cylindrical shape or an H shape.

  According to the prism instrument device for surveying of the present invention, the substantially U-shaped prism holder fixed to the stepladder, and the left and right of the prism holder fixed to the center portion of both sides of the substantially U-shape of the prism projecting outward. A cylindrical guide shaft, left and right slide flat surfaces formed by cutting the left and right semicircular arc portions of the cylindrical guide shaft in the vertical direction, and storage support through the left and right cylindrical guide shafts in a substantially U-shaped interior of the prism holder Prism device, a slide turning portion formed in the front-rear direction on the left and right sides of the prism device, a circular hole portion for turning the prism device formed at a plurality of positions of the slide portion, and each circular hole in the slide portion. Since the slit is made wide enough to allow only the sliding flat surface of the cylindrical guide shaft to be inserted, the prism device is correctly positioned at the desired position via the slide portion and the cylindrical guide shaft. And easily it can be set. Moreover, since the adjustment of the front-rear position is performed through the slide flat surface and the slit, there is no movement in the width direction during movement. Moreover, once the circular hole portion for turning the desired prism device is reached and turned in the horizontal direction, the cylindrical guide shaft cannot enter the slit communicating with the circular hole portion, and the fixed prism is not displaced from the desired position. .

  Moreover, in the prism instrument device for surveying according to the present invention, since the prism instrument has a cylindrical shape or an H shape, the reflecting prism can be attached to the prism instrument regardless of the appearance of the reflecting prism.

It is a perspective view which shows the prism fixing device of 1st Example. It is a front view which shows the prism holder of 1st Example. It is a side view which shows the prism holder of 1st Example. It is a front view which shows the bracket attached to the prism holder of 1st Example. It is a perspective view which shows the prism instrument of 1st Example. It is a top view which shows the prism instrument of 1st Example. It is a figure which shows the cylindrical guide shaft of 1st Example. It is a figure which shows the cylindrical guide shaft of 1st Example. It is a perspective view which shows the prism instrument of 2nd Example. It is a top view which shows the prism instrument of 2nd Example. It is a figure which shows the method of changing the position of the prism fixing device of 1st Example.

  The present invention includes a substantially U-shaped prism holder that is fixed to a stepladder, left and right cylindrical guide shafts that are protruded and fixed outwardly at the center portions of both sides of the substantially U-shaped prism holder, and the cylindrical guide shafts. The left and right slide flat surfaces formed by cutting the left and right semicircular arc portions in the vertical direction, the prism device housed and supported via the left and right cylindrical guide shafts in the substantially U-shaped interior of the prism holder, and the prism device A cylindrical guide shaft that communicates between a slide part for slide rotation formed in the front-rear direction on the right side of the left side, a circular hole part for prism device rotation formed at a plurality of positions of the slide part, and each circular hole part of the slide part. And a slit having a width that can be inserted only through the flat surface of the slide, and the shape of the prism device is cylindrical or H-shaped.

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

  FIG. 1 is a schematic configuration diagram of a prism apparatus 100 according to a first embodiment of the present invention. The prism apparatus 100 includes a prism holder 10 for mounting on a support pole placed at a surveying point, a prism apparatus 20 for mounting a reflecting prism P fixed to the prism holder 10, and the prism holder 10 and the prism apparatus 20. And the wing nut 40 for fitting and fixing the cylindrical guide shaft 30 together.

The prism holder 10 is substantially U-shaped as viewed from the front as shown in FIGS. 2 and 3, and screw holes 11 and 11 are formed in the vicinity of both ends of the U-shape so as to have long holes. A substantially circular threaded hole 12 is provided in a substantially central part of the lower end of the letter shape.
As shown in FIG. 4, a bracket 13 having a substantially cylindrical shape and a threaded portion 14 at the upper end is engaged and fixed in the threaded hole 12.

  Although the shape of the bracket 13 is substantially cylindrical, the shape of the bracket 13 can be changed by a shape fixed to a pole (not shown) that supports the prism holder 10. For example, the bracket 13 is substantially conical. It is good also as a shape.

  As shown in FIGS. 5 and 6, the prism device 20 has a substantially cylindrical shape and has a hollow portion 24, and on the outer peripheral surface, substantially plate-like slide portions 21 and 21 are formed facing each other. Further, a bottom portion 25 is formed in the hollow portion 24 of the prism device 20 so as to close the hollow portion 24 at a substantially central portion in the longitudinal direction of the prism device 20.

  Each slide portion 21 has an elongated slit 22 formed in a substantially central portion in the short direction toward the longitudinal direction, and three circular hole portions 23-1 provided in the vicinity of both ends and one end of the slit 22. , 23-2, 23-3.

  The slit 22 is an elongated perforated part, and has a width substantially equal to a slide flat surface 32 formed on a cylindrical guide shaft 30 described later. The circular holes 23-1, 23-2, and 23-3 are each formed in a substantially circular shape, and have substantially the same diameter as a slide flat surface 32 formed on a cylindrical guide shaft 30 described later.

Further, the circular hole portions 23-1, 23-2, and 23-3 are located at a position 30 mm away from the circular hole portion 23-1 along the slit 22 with the circular hole portion 23-1 formed at one end portion of the slit 22 as a base point. 2 is formed, and the circular hole 23-3 is formed at a position 40 mm away from the circular hole 23-1 along the slit 22 from the base point.
In this embodiment, the prism adjustment distance is set to 30 mm and 40 mm, but the present invention is not limited to this.

  Further, as shown in FIG. 6, the bottom portion 25 is substantially circular in a front view and has a long hole shape by cutting the vicinity of each slide portion 21 in the vertical direction, and the cutting end portions 26, 26 and the inner side surface of the prism device 20. Passing holes 27, 27 are formed between them. Further, a substantially circular threaded fixing hole 28 is formed in a substantially central portion of the bottom portion 25.

  Each passage hole 27 is a space provided so that a head 31 of the cylindrical guide shaft 30 does not interfere when a cylindrical guide shaft 30 described later moves through a slit 22 formed in the slide portion 21.

  The cylindrical guide shaft 30 is a special hexagonal bolt as shown in FIGS. 7 and 8, and a hexagonal head 31 and left and right semicircular arcs of a substantially circular screw portion adjacent to the head 31 are cut in the vertical direction. And a long hole-shaped slide flat surface 32 formed in the above manner.

  The prism device apparatus 100 configured as described above aligns the positions of any of the circular holes 23-1, 23-2 and 23-3 of the prism device 20 with the screw holes 11 of the prism holder 10. The slide flat surface 32 of the cylindrical guide shaft 30 is inserted into the circular hole portions 23-1, 23-2, 23-3 from the hollow portion 24, and the slide flat surface 32 protruding from the screw hole 11 is screwed into the wing nut 40. It is formed by doing.

  Next, as a second embodiment of the prism fixing device 100, a prism fixture device 100 ′ in which the prism fixture 20 has an H shape as shown in FIGS. Since the other configuration is the same as that of the first embodiment, repeated description will be omitted as appropriate.

  The prism device 50 according to the second embodiment has a substantially H shape when viewed from the front, and substantially plate-like slide portions 51 and 51 are formed in opposite directions of both sides of the H shape. A plate-shaped prism fixing portion 54 is horizontally mounted.

  Each slide portion 51 has an elongated slit 52 formed in a substantially central portion in the short-side direction toward the longitudinal direction, and three circular hole portions 53-1 provided in the vicinity of both ends and one end of the slit 52. , 53-2, 53-3.

  The slit 52 is an elongated perforated part, and has a width substantially equal to the slide flat surface 32 formed on the above-described cylindrical guide shaft 30. The circular hole portions 53-1, 53-2, and 53-3 are each formed in a substantially circular shape, and have substantially the same diameter as the slide flat surface 32 formed on the above-described columnar guide shaft 30.

Furthermore, the circular hole portions 53-1, 53-2, and 53-3 are arranged at positions 30 mm apart from the circular hole portion 53-1 formed at one end portion of the slit 52 along the slit 52. 2 and the circular hole 53-3 is formed at a position 40 mm away from the circular hole 53-1 along the slit 52.
In the second embodiment, the position change distance is set to 30 mm and 40 mm, but the present invention is not limited to this.

  In addition, a substantially circular and threaded fixing hole 56 is formed in a substantially central portion of the prism fixing portion 54, and at both ends of the prism fixing portion 54, that is, a connecting portion between each slit portion 51 and the prism fixing portion 54. A through hole 55, which is a circular hole, is formed so that the head portion 31 of the cylindrical guide shaft 30 can pass therethrough.

  The prism device apparatus 100 ′ configured as described above is aligned with the screw hole 11 of the prism holder 10 in any of the circular holes 53-1, 53-2, and 53-3 of the prism device 50, and the prism device 50. It is formed by inserting the slide flat surface 32 of the cylindrical guide shaft 30 from the inside and screwing the slide flat surface 32 protruding from the screw hole 11 to the wing nut 40.

The configuration of the prism instrument apparatus 100, 100 ′ of the present invention is as described above, and the measurement error when the survey instrument is changed using the instrument apparatus 100, 100 ′ or the reflection prism P is changed is reduced. The procedure for changing the position of the prism device 20 is performed by the following four steps from the first to the fourth step. Here, the position changing procedure will be described in the configuration of the prism device 100.
FIGS. 11A to 11D are views showing a procedure for changing the position of the prism apparatus, the upper diagram is a side view showing the procedure for changing the position, and the lower diagram is shown in FIGS. It is a figure which shows the positional relationship of the prism apparatus 20 and the cylindrical guide shaft 30 corresponding to the upper figure of d).

  First, in the first step, the wing nuts 40, 40 located outside the screw holes 11, 11 of the prism holder 10 are loosened so that the prism device 20 is rotatable inside the prism holder 10.

  Next, in the second step, as shown in FIG. 11B, the prism device 20 is turned in the vertical direction so that the slide flat surface 32 can move through the slit 22. Next, the right and left slide flat surfaces 32 of the cylindrical guide shaft 30 are inserted and fitted into the slit 22 of the slide portion 21, and the prism device 20 is moved vertically along the slit 22 to become a predetermined position, for example, a circular hole portion. It is displaced to the position 23-2.

  Next, in the third step, as shown in FIG. 11C, the prism device 20 is turned to a horizontal state around the left and right cylindrical guide shafts 30 in the circular hole portion 23-2 as in the first step. The horizontal position state of the prism device 20 is the adjustment fixing position of the prism device 20.

  Next, in the fourth step, as shown in FIG. 11 (d), the reflecting prism P is screwed into the fixing hole 28 formed in the bottom 25 of the prism fixture 20, and the reflecting prism P receives the survey laser irradiation from the opposite direction. Surveying is performed.

  Note that the present invention is not limited to the above-described embodiments, and the configurations disclosed in the above-described embodiments are replaced with each other or the combination is changed, the invention is disclosed in the known invention, and the above-described embodiments. A configuration in which each configuration is mutually replaced or a combination is changed is also included. The technical scope of the present invention is not limited to the above-described embodiment, but extends to the matters described in the claims of the utility model registration and equivalents thereof.

P Reflective prism 100, 100 ′ Prism fixture device 10 Prism holder 11 Screw hole 12 Screw cut hole 13 Bracket 14 Screw cut portion 20 Prism fixture 21 Slide portion 22 Slit 23-1, 23-2, 23-3 Circular hole portion 24 Hollow portion 25 Bottom 26 Cutting end 27 Passing hole 28 Fixed hole 30 Cylindrical guide shaft 31 Head 32 Slide flat surface 40 Wing nut 50 Prism instrument 51 Slide part 52 Slit 53-1, 53-2, 53-3 Circular hole 54 Prism fixed Portion 55 Passing hole 56 Fixing hole

Claims (2)

A substantially U-shaped prism holder fixed to a stepladder;
Left and right cylindrical guide shafts that protrude outwardly and fixed to the center of both side walls of the substantially U-shape of the prism holder;
Left and right slide flat surfaces formed by vertically cutting left and right semicircular arc portions of the cylindrical guide shaft;
A prism device which is housed and supported via the left and right cylindrical guide shafts in a substantially U-shaped interior of the prism holder;
A slide portion for sliding rotation formed in the front-rear direction on the left and right side portions of the prism device;
A circular hole for turning the prism device formed at a plurality of positions of the slide part ;
A prism instrument device for surveying, characterized in that it comprises a slit that communicates between the circular hole portions of the slide portion , and has a width that allows only the slide flat surface of the cylindrical guide shaft to be inserted. The prism instrument device for surveying according to claim 1, wherein the prism instrument has a cylindrical shape or an H shape.

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