JP2509510Y2 - Plane setting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a plane setting device, and more particularly to a plane setting device that can be used for setting both horizontal and vertical horizontal planes.

[Prior Art] Conventionally, a plane setter that can be used to set a horizontal or vertical horizontal plane is as shown in FIGS. 10 (a), (b) to 11 (a), (b). Various technologies have been proposed.

In the proposed technique shown in FIGS. 10 (a) and 10 (b), the light transmitting unit 82 is oscillated by the hinge 83 on the light emitting unit 81 mounted on the tripod, leveling table 80, or the like. It is movably supported, and when setting a horizontal plane, as shown in FIG. 10A, the light transmitting section 82 is placed on the light emitting section 81 so that the light forms a plane. When the vertical plane is set, the light transmitting section 82 is rotated by the hinge 83 so that the optical plane from the light transmitting section 82 is vertical (vertical) as shown in FIG. 10 (b). ) In the state as shown above, the light path from the light emitting section 81 is changed to the light transmitting section 82 by the attached light path changing element 85,
It is used to set the vertical plane.

In the technique shown in FIGS. 11 (a) and 11 (b), an L-shaped bracket 105 is attached to the collimator section 101, and the bottom surfaces of the bracket 105 and the light emitting section 101 are mounted on a tripod, a leveling table 80, or the like. When the horizontal plane is set, the bottom surface of the light emitting unit 101 is connected to a tripod or a leveling table as shown in FIG. 11 (a), and the vertical plane is set as shown in FIG. As shown in b), the bracket 101 is connected to a tripod, a leveling table, or the like 80 for use. Note that reference numeral 102
Is an optical transmitter.

[Problems to be Solved by the Invention] FIGS. 10 (a), (b) through 11 (a), (b)
In any of the technologies shown in, a dedicated adapter,
Alternatively, a bracket or the like is required, the switching operation is troublesome, and a dedicated adapter or bracket or the like needs to be separately prepared at the time of work, which causes a problem in storing the dedicated adapter or the bracket or the like in a portable manner.

An object of the present invention is to provide a plane setting device that can be used for setting horizontal or vertical horizontal planes without using a dedicated adapter or bracket.

[Means for Solving the Problems] A plane setting device of the present invention is configured to convert an output light from a light source into a parallel light and output the light from the output optical system in a vertical direction by an automatic vertical correction mechanism. An optical plane forming section that rotates and emits light in the entire circumferential direction in a plane orthogonal to the incident direction, a swing arm that connects the optical plane forming section and the emission optical system, and the optical plane forming section is the swing arm. And an optical element that guides the outgoing light in the vertical direction in the horizontal direction when rotating at a right angle to the parallel light of the outgoing optical system by means of a swing arm, and makes the optical plane forming portion into a parallel light of the outgoing optical system. On the other hand, it is arranged in either the vertical direction or the orthogonal direction so that the emitted light is selectively emitted horizontally or vertically.

Another optical element for parallelly moving the position of the incident light from the optical element between the optical element and the optical plane forming portion when the swing arm rotates at a right angle to the parallel light of the emission optical system. It is preferable that the device is arranged.

[Operation] With the plane setting device according to the present invention, the position of the optical plane forming portion is arranged in either the vertical direction or the orthogonal direction with respect to the parallel light of the emission optical system by the swing of the swing arm, and Since the emitted light is selectively emitted horizontally and vertically, it can be emitted only in the desired setting direction, and it is possible to easily switch between horizontal plane setting and vertical plane setting without using a separate member such as an adapter. .

Further, since the light from the emission optical system is not divided into two directions by the division prism and all the emission light is emitted from the optical plane forming portion by the optical element, the light amount used for surveying is large and the light receiving distance is extended. It will be.

Another optical element for parallelly moving the position of the incident light from the optical element between the optical element and the optical plane forming portion when the swing arm rotates at a right angle to the parallel light of the emission optical system. When the element is provided, the emission position of the light flux can be adjusted, and the optical element and the like can be easily provided.

Embodiment Hereinafter, the present invention will be described in detail with reference to the drawings. In addition,
The members, arrangements, etc. described below do not limit the present invention, and can be variously modified within the scope of the present invention.

FIGS. 1 to 8 show an embodiment of the present invention. The plane setting device S shown in this embodiment includes a collimator section 14, an optical element 20, a swing arm 30, and an optical plane forming section. 40 is the main component.

As shown in FIG. 1, the collimator unit 14 is arranged in a casing 12, and the collimator unit 14 serves as a light source, a laser diode 15 that emits light (laser light) upward, and the laser diode 15. It is composed of a collimator lens 16a for collimating 15 laser beams and an optical axis adjusting optical element 16b. The laser diode 15 is suspended and supported by a suspension line 17, and vibration is suppressed by a damper mechanism.

The upper wall surface 12a of the casing 12, that is, the collimator lens 16a
Further, a dustproof glass 13a is provided at a position vertically above the optical axis adjusting optical element 16b for dustproofing and waterproofing.
2 side wall surface 12b, that is, as shown in FIG.
In the position facing the drawing), a dustproof glass 13b is provided for dustproofing and waterproofing at a position where the optical plane forming portion 40 is inclined and becomes horizontal.

As shown in FIGS. 3 and 6, the side wall surface 12c adjacent to the front side wall surface 12b of the casing 12 is provided with a hollow portion 34 therein to swing in a U shape in a front view. An arm 30 is pivotally attached by a rotation shaft 32. Note that reference numeral 31
Indicates the pivot point.

The optical element 20 is configured such that the incident light and the emitted light are orthogonal to each other, and in this example, as shown in FIG. 5, of the U-shaped fixed frame 21 arranged in the casing 12. It is fixed on the top. Fixed frame 21 with the optical element 20 attached
A hole (not shown) is formed in the surface so that the light from the collimator unit 14 can be introduced into the optical element 20. On both free end sides of the fixed frame 21, a rotary shaft described later is provided.
A rotary shaft insertion hole 22 having a rectangular cross section that engages with 32 is formed. The U-shaped fixed frame 21 is used for the swing arm.
When the swinging arm 30 is tilted to the second position (horizontal position (X position in FIG. 4)) which is disposed at a position orthogonal to 30, it is positioned vertically above the collimator unit 14. It is supposed to do. When the fixed frame 21 is positioned vertically above the collimator portion 14, the optical element 25 that moves the emitted light from the optical element 20 in parallel and guides it to the position of the dustproof glass 13b formed on the side surface of the casing 12 is provided. It is arranged between the dustproof glass 13b and a position vertically above the collimator portion 14.

Further, the front side of the upper wall surface 12a of the casing 12 (right side in FIG. 4) is formed into an arc-shaped wall surface 12d having a pivot 31 as a center, and the swing arm 30 is at a position shown by a solid line in FIG. Y
It is configured so that it can be rotated within a range of 90 degrees from a position) to a position (X position) indicated by a virtual line.

As shown in FIG. 3 and FIG. 6, a rotary shaft insertion hole 33a having a rectangular cross section is formed on the end side of each side column 30a, 30a on both sides of the swing arm 30, while the casing 12 Side wall 1
A rotary shaft insertion hole 33b is formed in 2c.

As shown in FIGS. 6 and 7, the rotary shaft 32 includes a columnar portion 32a that axially supports the insertion hole 33b of the casing 12, and the columnar portion 32a.
It is composed of engaging portions 32b, 32c having rectangular cross sections extending to both sides of 32a, and locking portions (screw portions in this example) 32d, 32e formed on the free end side of the engaging portions 32b, 32c. A lead wire insertion hole 32f is formed in the engaging portion 32b on the casing 12 side, and an axial hollow portion 35 communicating with the insertion hole 32f is formed inside the rotary shaft 32.

A cap nut 36 is screwed into an engaging portion 32d on the outside of the casing 12 of the rotating shaft 32 that is inserted into the rotating shaft insertion holes 22, 33a, 33b, and a stopper 37 is attached to the inside engaging portion 32e. It is screwed. Then, as shown in FIG. 6, after a lead wire (connection cord 41) described later is inserted into the hollow portion 35 of the rotary shaft 32, the rotary shaft 32 is attached to the rotary shaft insertion holes 22, 33a, 33b. To wear. By doing so, the swinging arm 30 and the fixed frame 21 are rotated with respect to the casing 12 by the engaging portions 32b and 32c of the rotating shaft 32 while keeping the angle of 90 degrees.

The side wall portion 30a of the swing arm 30 has a central portion of the side pillar portion 30a and a side wall 12c of the casing 12 on the side wall 12c side.
As shown, a click stop 38 is formed. This click stop 38 is screwed with the side pillar portion 30a,
A protrusion 38a that protrudes toward the casing side wall 12c is formed. On the other hand, at a predetermined position of the side wall 12c, that is, at a predetermined two positions where the light transmitting unit 40 is in the vertical state and the tilted state on the movement locus of the protrusion 38a in this example, the protrusions 38a are engaged with each other. A V-shaped spring 39 is formed. And the above-mentioned protrusion 38a
By engaging the spring 39 with the spring 39, the swing arm 30 is locked at two positions. Therefore, if the swing arm 30 is rotated, it is possible to easily confirm the X position or the Y position by a click feeling.

As shown in FIG. 1, in the light plane forming unit 40, the motor M is arranged in the casing 42 of the light plane forming unit, and the rotation shaft of the motor M and the supporting member of the pentaprism 46 are engaged with each other, so that the motor M The pentagonal prism 46 is configured to rotate by the rotation of the pentagonal prism 46, and a light transmitting section is formed below the pentagonal prism 46. The light emitted from the collimator section 14 is incident on the rotary pentaprism 46. The structure is such that the light is emitted in the entire circumferential direction of the plane orthogonal to the incident light. The motor M is connected to the hollow portion 34 of the swing arm 30 by the lead wire 41.
Through the lead wire insertion hole 32f, the hollow portion 35 of the rotary shaft 32, is connected to a control unit, a switch, a power supply, etc., which are not shown,
The lead wire 41 has a structure such that it is not exposed to the outside of the casing 12.

As shown in FIG. 9, a concave groove 50 is formed on the side wall 12c side, and deeper concave portions 52a and 52b are formed at the X, Y stop positions, while the side column portion on the swing arm 30 side is formed. A slider 54 biased by a spring is projected on 30a, a knob is provided at one end of the slider 54, and when the swing arm 30 is rotated from the grooves 52a and 52b, it is easily rotated by pulling the knob. This may be possible, and the stop position accuracy of the optical plane forming unit 40 may be improved.

Next, the operation of the plane setting device S having the above configuration will be described.

When the horizontal plane is set, the light emitted from the laser diode 15 of the collimator unit 14 is guided to the outside of the casing 12 through the collimator lens 16a and the optical axis adjusting optical element 16b provided vertically. On the other hand, since the optical plane forming portion 40 that emits incident light in the direction of the entire circumference of the plane orthogonal to each other is integrally attached to the swing arm 30, as shown by the solid line in FIG. By being positioned at the (vertical) position, the light emitted from the laser diode 15 of the collimator unit 14 passes through the dust-proof glass 13a provided in the casing 12, enters the light plane forming unit 40, and the penta prism 46 Therefore, the horizontal light flux is emitted, and the light emitted from the optical plane forming unit 40 can form a horizontal plane.

Further, when the vertical plane is set, the swing arm 30 is swung to the position shown by the chain line in FIG. 3, so that the fixed frame 21 of the optical element 20 is swung together with the swing arm to collimate the lens 16a. Also, it is located vertically above the optical element 16b for adjusting the optical axis. Then, the light flux that has become a parallel light flux by the collimator lens 16a is bent 90 ° by the optical element 20 and becomes a horizontal light flux. This horizontal light flux is translated downward by the optical element 25, passes through the dust-proof glass 13b,
The light enters the pentaprism 46 of the light plane forming unit 40 and becomes a vertical light beam. Thus, the light emitted by the rotation of the light plane forming unit 40 forms a vertical plane.

As described above, the vertical plane and the horizontal plane of the optical plane forming section 40 can be set by selectively rotating the optical plane forming section 40 to the X position or the Y position shown in FIG.

[Advantages of the Invention] Since the present invention is configured as described above, the position of the optical plane forming portion can be set to either the vertical direction or the orthogonal direction with respect to the parallel light of the emission optical system by the swing of the swing arm. Since the output light is selectively emitted horizontally or vertically, the light is emitted only in the desired setting direction, and horizontal and vertical surfaces can be easily set without using a separate member such as an adapter. You can switch between and.

Further, since the light from the emission optical system is not divided into two directions by the division prism and all the emission light is emitted from the optical plane forming portion by the optical element, the light amount used for surveying is large and the light receiving distance is extended. It will be.

Further, another optical element for translating the position of the incident light from the optical element between the optical element and the optical plane forming portion when the swing arm rotates at a right angle to the parallel light of the emission optical system. When the element is provided, the emission position of the light flux can be adjusted, and the optical element and the like can be easily provided.

[Brief description of drawings]

1 to 9 show an embodiment according to the present invention. FIG. 1 is a sectional view taken along the line I-I of FIG. 1 of a plane setting device, and FIG. 2 shows a state in which an optical plane forming portion is movable. A sectional view similar to FIG. 1, FIG. 3 is a front view of the plane setting device, FIG. 4 is a side view of the plane setting device, FIG. 5 is an internal explanatory perspective view, and FIG. Explanatory drawing, FIG. 6 is a schematic sectional view of the swing arm mounting portion, FIG. 7 is a perspective view, and FIGS. 8 (a) and 8 (b) are explanatory views of the engaging portion between the swing arm and the casing. FIG. 9 is an explanatory view showing another example, FIGS. 10 (a), (b) and FIGS. 11 (a), (b) show a conventional example, and FIGS. 10 (a) and 11
Figure (a) is a front view showing a state when setting a horizontal plane,
FIG. 10 (b) and FIG. 11 (b) are explanatory views showing a state when the vertical plane is set. 14 ... Collimator part, 12 ... Casing, 13a, 13b ... Dust-proof glass, 15 ... Light source (laser diode), 20 ... Optical element,
25 ... Optical element for moving the position of incident light in parallel, 30 ... Swing arm, 40 ... Optical plane forming part, Y ... First position on optical axis of collimator part, X ... Orthogonal to optical axis of collimator part Second
Position, S ... Plane setting device.

Claims (2)

(57) [Scope of utility model registration request] 1. An output optical system for converting light emitted from a light source into parallel light and emitting the light in a vertical direction by an automatic vertical correction mechanism, and a light emitted from the output optical system in an entire circumferential direction in a plane orthogonal to the incident direction. A plane-of-light forming portion that rotatably emits, a swing arm that connects the plane-of-light forming portion and the emission optical system, and the plane-of-light forming portion is formed by the swing arm at a right angle to parallel light of the emission optical system. An optical element that guides the outgoing light in the vertical direction to the horizontal direction when rotating, and the optical plane forming portion is arranged by a swing arm in either the vertical direction or the orthogonal direction with respect to the parallel light of the outgoing optical system. The plane setting device is characterized in that the emitted light is selectively emitted horizontally or vertically. 2. The position of the incident light from the optical element is made parallel between the optical element and the optical plane forming portion when rotated by the swing arm at a right angle to the parallel light of the emission optical system. The plane setting device according to claim 1, wherein another optical element for moving is provided.