JP2008203079A - Mirror device for total station - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mirror device for total station facilitating positioning of a slide frame. <P>SOLUTION: The mirror device for total station includes a pole 6, the slide frame 10, a prism mirror 12, a bubble tube 13, and a lock means 14 for locking the slide frame 10 at a required position of a pole body 6. In the lock means 14, a rotary shaft 29 to which a truncated cone trapezoidal roller 28 is fixed is horizontally and axially installed on the slide frame 10, and a spring 30 which normally and axially presses the rotary shaft 29 in a direction of engaging the truncated cone trapezoidal roller 28 in a wedge-like manner with the pole body 6 and which locks the slide frame 10 is interposed between the rotary shaft 29 and the slide frame 10. The slide frame 10 is vertically moved finely by turning an operational knob 31 in the locked state, presses the rotary shaft against the spring energization force in a direction reverse to the direction in which the truncated cone trapezoidal roller 28 is engaged with the pole body 6 in the wedge-like manner to unlock the slide frame 10. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a mirror device used for a total station.

  The total station is a surveying instrument that integrates the angle measuring function and the distance measuring function. The main unit and computer are connected with a cable, the angle and distance to the target mirror device are observed, and the data is recorded in real time. It is supposed to be. This mirror device reflects the distance measuring angle light projected from the main body of the total station and sends it back to the main body, and is composed of a prism reflecting mirror.

  As a conventional mirror device, publicly known documents such as patent publications cannot be specifically mentioned, but FIG. 7 shows a conventional mirror device, where (a) is a front view, (b) is a side view, (c ) Is a plan view. This mirror device includes a pole 15 having a grounding cone 19 formed in a lower portion of a cylindrical pole body 16, a slide frame 20 that can slide along the pole body 16, a slide frame 20 that can slide integrally with the slide body 20, and The prism mirror 12 that can rotate around the axis O passing through the center of the grounding cone 19 and the horizontal rotation axis H, the leveling bubble tube 13 provided at the upper end of the slide frame 20, and the slide frame 20 are poled. The locking means 24 includes a fixing screw 32 that locks at a required position of the main body 16, and the locking means 24 includes a fixing screw 32. By rotating the screw 32 in the tightening direction, the slide frame 20 is moved at the required position. The slide frame 20 is unlocked by pressing the release piece 33 and fixed to the slide frame 20. It is set to be slidable relative to the pole body 16.

  In using this mirror device, the grounding cone 19 of the pole 15 is grounded to the grounding point at the target location, and the slide frame 20 is operated so that the prism mirror 12 is positioned at the required height from the ground by operating the locking means 24. Then, the pole body 16 is appropriately swung while looking at the leveling bubble tube 13 to perform leveling, and the pole body 16 is set in a vertical posture to install the pole 15.

  In the conventional mirror device, when the slide frame 20 is fixed to the required position of the pole body 16 when the pole 15 is installed, the operator raises and lowers the slide frame 20 by hand in the unlocked state to obtain the required height position. The slide frame 20 is locked by tightening the fixing screw 32 and the prism mirror 12 is set at a required height from the ground. However, in this mirror device, the slide frame 20 cannot be finely adjusted on the pole body 16. For this reason, the positioning operation of the slide frame 20 is time-consuming and the work efficiency is poor.

  In view of the above-described problems, an object of the present invention is to provide a total station mirror device that can easily and easily perform a slide frame positioning operation.

Means for solving the above problems will be described with reference numerals in the embodiments described later. The invention according to claim 1 includes a pole 5 in which a grounding cone 9 is provided at the bottom of the pole body 6, A slide frame 10 slidable along the pole body 6 and a prism mirror 12 slidable integrally with the slide frame 10 and rotatable around an axis O passing through the center of the grounding cone 9 and around a horizontal rotation axis 21. And a pole leveling bubble tube 13 and a locking means 14 for locking the slide frame 10 at a required position of the pole body 6, and reflecting the light for distance measurement and angle projection projected from the total station TS to the total station TS. A mirror device for total station to send back,
The locking means 14 horizontally pivots a rotating shaft 29 to which the frustoconical roller 28 is fixed on the slide frame 10, and the frustoconical roller 28 is always between the rotating shaft 29 and the slide frame 10. An operation knob provided at one end of the rotary shaft 29 in a locked state is provided with a spring 30 that locks the slide frame 10 by pressing the rotary shaft 29 in the axial direction in a wedge engaging direction. By rotating 31, the frustoconical roller 28 rolls along the pole body 6 to slightly move the slide frame 10 up and down, and the frustoconical roller 28 wedges against the pole body 6 against the spring biasing force. The slide frame 10 is unlocked by pushing the rotating shaft in the opposite direction.

  A second aspect of the present invention is the total station mirror device according to the first aspect, wherein the pole body 6 is formed in a columnar shape or a prismatic shape.

  The effect of the invention by the above solution will be described with reference numerals in the embodiments described later. According to the mirror device of the invention according to claim 1, the lock for locking the slide frame 10 at the required position of the pole body 6 is described. The means 14 horizontally pivots on the slide frame 10 with a rotary shaft 29 to which a frustoconical roller 28 that rolls along one side surface 6 a of the pole body 6 is fixed, and between the rotary shaft 29 and the slide frame 10. In addition, a spring 30 is provided to lock the slide frame 10 by pressing the rotating shaft 29 in the axial direction so that the outer peripheral surface of the frustoconical roller 28 is wedge-engaged with the one side surface 6a of the pole body 6 at all times. The slide frame 10 can be finely adjusted in the vertical direction by turning the rotary shaft 29 via the operation knob 31 in the locked state. Positioning operations over arm 20 is simple and easy. Further, the slide frame 10 is unlocked by moving the rotary shaft 29 via the operation knob 31 in the direction opposite to the direction in which the frustoconical roller 28 is wedge-engaged with one side surface of the pole body 6. However, by raising and lowering the operation knob 31 in the unlocked state, the slide frame 10 can be moved greatly in the vertical direction.

  As described in claim 2, the lock means 14 may be one in which the pole body 6 is formed in a columnar shape, or may be formed in a prismatic shape.

  A preferred embodiment of the present invention will be described below with reference to the drawings. First, FIG. 1 is an explanatory diagram of a use state showing a total station and a mirror device according to the present invention, and FIG. FIG. 3B is a right side view, FIG. 3 is a sectional view taken along line XX of FIG. 2A, FIG. 4 is an enlarged sectional view taken along line YY of FIG. It is a ZZ line sectional view of a).

  In FIG. 1, TS indicates a total station. This total station TS is formed by connecting a total station body 1 mounted on a tripod 2 to a control / operation personal computer 3 by a cable 4. The angle and distance are observed, and the data is recorded in real time. Although not shown, the total station body 1 includes a distance measuring unit, an image capturing unit, an image processing unit, an angle measuring unit, a CNC driving unit (driving means), an automatic focusing unit, and a CPU that controls these units.

  In the mirror device M, horizontal rods 7 and 8 are respectively attached to the upper and lower ends of the prismatic pole body 6 at right angles to the pole body 6 and a grounding cone 9 is suspended from the lower surface of the tip of the lower horizontal rod 8. A substantially U-shaped pole 5, a slide frame 10 that can slide along the pole body 6, and a slide frame that can rotate around an axis O that passes through the center of the grounding cone 9 and is parallel to the pole body 6. 10, a mirror mounting frame 11 attached to 10, a prism mirror 12 rotatably attached to the mirror mounting frame 11 around a horizontal rotation axis 21, and a leveling bubble tube 13 provided on the upper part of the mirror mounting frame 11. And a locking means 14 for locking the slide frame 10 at a required position of the pole body 6.

  On the upper horizontal rod 7 of the pole 5, an upper side centering cone 22 protrudes coaxially with an axis O passing through the center of the grounding cone 9 on the lower surface of the tip, and a cone receiver 23 that receives the centering cone 22. Is provided on the upper surface of the slide frame 10, and a lower centering cone 24 is provided coaxially with an axis O passing through the center of the grounding cone 9 at the lower part of the slide frame 10, and receives the centering cone 24. A receptacle 25 is provided on the upper surface of the lower horizontal rod 8.

  The slide frame 10 is formed in a U-shaped frame shape by a vertical frame 10a having a rectangular cross section through which the pole body 6 passes, and an upper plate 10b and a lower plate 10c each having a substantially T-shape in plan view, and the vertical frame 10a. Inside, a guide roller 26 for guiding the prismatic pole body 6 is pivotally mounted, and the mirror mounting frame 11 is parallel to the pole body 6 between the tip of the upper plate 10b and the tip of the lower plate 10c. It is provided to be rotatable around O. As can be seen from FIG. 2 (a) and FIG. 5, the mirror mounting frame 11 is composed of left and right side frames 11a, 11a and upper and lower frames 11b, 11c, and the upper and lower frames 11b, 11c are the upper plate of the slide frame 10. 10b and the lower plate 10c are pivotally connected by pivots 27a and 27b.

  As schematically shown in FIG. 5, the prism mirror 12 is provided so that the light reflection point F of the mirror 12 is positioned on the horizontal rotation axis 21, and thereby the prism mirror 12 centered on the horizontal rotation axis 21. Even if the rotation angle changes, since the light reflection point F of the mirror 12 is constant, the measurement value does not change and the measurement accuracy can be improved.

  As shown in FIG. 4, the locking means 14 has a rotating shaft 29 fixed to a vertical frame 10 a of the slide frame 10 and a rotary shaft 29 fixed to a truncated cone roller 28 that rolls along one side surface 10 a of the prismatic pole body 6. In addition, between the rotation shaft 29 and the vertical frame 10 a of the slide frame 10, the rotation shaft is always in a direction in which the outer peripheral surface of the frustoconical roller 28 is wedge-engaged with the one side surface 6 a of the prismatic pole body 6. An operation knob 31 is attached to one end of the rotating shaft 29. A coil spring 30 is interposed between the rotating shaft 29 and the rotating frame 29.

  The coil spring 30 is interposed between the rotary shaft 29 and the slide frame 10 so that the coil spring 30 is not twisted even if the rotary shaft 29 is rotated. Further, a scale 34 is formed on the other side surface 6b of the prismatic pole body 6 in units of millimeters and centimeters, and the height of the slide frame 10 from the ground G when the grounding cone 9 is in contact with the ground G is determined. It can be visually recognized.

  In the use of the locking means 14, when the operation knob 31 is grasped and the rotary shaft 29 is rotated while the slide frame 10 is locked, the truncated cone roller 28 is moved along the one side surface 6 a of the prismatic pole body 6. The slide frame 10 can be finely moved in the vertical direction while rolling by the contact frictional force with the side surface 6a. Further, the rotary shaft 29 is moved via the operation knob 31 in the direction opposite to the direction in which the frustoconical roller 28 is wedge-engaged with the one side surface 6 a of the pole body 6 against the urging force of the coil spring 30. When the rotary shaft 29 is pushed into the slide frame 10, the wedge engagement with the one side surface 6a of the pole body 6 is released, so that the slide frame 10 can be unlocked. Thus, by raising and lowering the operation knob 31 in this unlocked state, the slide frame 10 can be moved greatly in the vertical direction, and when the operation knob 31 is released, the slide frame 10 is moved by the biasing force of the coil spring 30. Can be locked.

  In using the mirror device M having the above-described configuration, as shown schematically in FIG. 1, the pole 5 is perpendicular to the ground G with the grounding cone 9 of the pole 5 grounded to the grounding point at the target location. In other words, stand upright. When installing the pole 5, the operator grasps the upper horizontal rod 7 of the pole 5, and while observing the leveling bubble tube 13, the pole body 16 is appropriately swung back and forth and left and right so that the bubble is in the middle. When the pole 5 is stopped when the bubble in the tube 13 is in the middle, and it is signaled to the total station TS side that the pole 5 stands perpendicular to the ground G, infrared rays from the total station main body 1 are transmitted to the prism mirror 12 of the mirror device M. The measurement is started and the measurement is started. During the measurement, it is necessary to hold the pole 5 in the vertical posture.

  In this case, the pole 5 is formed in a substantially U shape by the pole body 6 and the upper and lower horizontal rods 7 and 8 attached at right angles to the upper and lower ends thereof, and at the tip of the lower horizontal rod 8 is a grounding cone. 9, the leveling operation for positioning the pole 5 at a vertical position where the bubbles of the leveling bubble tube 13 stop at the center can be easily performed, and the pole 5 can be held at the vertical position. It becomes easy.

  Further, in this mirror device M, the locking means 14 for locking the slide frame 10 at the required position of the pole body 6 slides on the rotating shaft 29 to which the frustoconical roller 28 that rolls along one side surface 6a of the pole body 6 is fixed. The shaft 10 is horizontally mounted on the frame 10, and the outer peripheral surface of the frustoconical roller 28 is normally rotated between the rotating shaft 29 and the slide frame 10 in a direction of wedge engagement with the one side surface 6 a of the pole body 6. Since the shaft 30 is pressed in the axial direction to provide a spring 30 for locking the slide frame 10, the slide frame 10 is moved by rotating the rotary shaft 29 via the operation knob 31 in the locked state. Fine adjustments can be made in the vertical direction, so that the positioning operation of the slide frame 20 is easy and easy.

  Further, the rotary shaft 29 is moved via the operation knob 31 in the direction opposite to the direction in which the frustoconical roller 28 is wedge-engaged with one side surface of the pole body 6, that is, the rotary shaft 29 is moved to the slide frame 10. The slide frame 10 can be unlocked by being pushed in, and the slide frame 10 can be moved greatly in the vertical direction by raising and lowering the operation knob 31 in the unlocked state. it can.

  The pole 5 of the mirror device M according to the embodiment shown in FIGS. 1 to 5 has horizontal rods 7 and 8 attached to the upper and lower ends of the prismatic pole body 6 at right angles to the pole body 6 and the lower horizontal rod 8. A grounding cone 9 is suspended from the lower surface of the distal end portion and is formed in a substantially U shape. A frustoconical shape of the locking means 14 is formed on one side surface 6 a of the prismatic pole body 6 of the substantially U-shaped pole 5. Although the roller 28 is engaged, the locking means 24 according to the present invention is not limited to the prismatic pole body 6 of the substantially U-shaped pole 5, but a mirror device of the type shown in FIG. It is also applicable to.

  That is, FIG. 6 schematically shows the locking means 14 applied to the columnar pole body 6, and a rotating shaft 29 to which a frustoconical roller 28 is fixed is horizontally mounted on the slide frame 10, and the rotating shaft is shown. A coil spring 30 that normally presses the rotary shaft 29 in the direction in which the frustoconical roller 28 is wedge-engaged with the pole body 6 to lock the slide frame 10 is interposed between the slide frame 10 and the slide frame 10. Thus, by rotating the operation knob 31 provided at one end of the rotary shaft 29 in the locked state, the frustoconical roller 28 rolls along the pole body 6 to slightly move the slide frame 10 in the vertical direction. And the rotary shaft 29 can be pushed in a direction opposite to the direction in which the frustoconical roller 28 is wedge-engaged with the pole body 6 against the biasing force of the coil spring 30. Makes it possible to unlock the slide frame 10, by raising or lowering the operating knob 31 in Thus unlocked state, it is possible to greatly move the slide frame 10 in the vertical direction.

FIG. 1 is an explanatory diagram of a use state of a mirror device having a total station and a locking means according to the present invention. A front view of the mirror device, (b) is the right side. It is the XX sectional view taken on the line of (a) of FIG. It is the YY line expanded sectional view of (b) of FIG. 2 is a sectional view taken along line ZZ of (a) of FIG. It is a schematic plan view which shows the locking means of other embodiment. 1 shows a conventional mirror device, where (a) is a front view, (b) is a side view, and (c) is a plan view.

Explanation of symbols

TS Total station M Mirror device 1 Total station body 5 Pole 6 Pole body 9 Grounding cone 10 Slide frame 12 Prism mirror 13 Leveling bubble tube 14 Locking means 28 Frustum roller 29 Rotating shaft 30 Coil spring

Claims (2)

A pole having a grounding cone at the bottom of the pole body, a slide frame that can slide along the pole body, an axis that can slide integrally with the slide frame and that passes through the center of the grounding cone, and a horizontal rotation axis It is equipped with a prism mirror that can be rotated around the pole, a bubble tube with a pole level, and a locking means that locks the slide frame at the required position of the pole body, reflecting the light for distance measurement and angle measurement projected from the total station A mirror device for the total station that sends it back to the total station,
The locking means is configured such that a rotating shaft to which a frustoconical roller is fixed is horizontally mounted on the slide frame, and the frustoconical roller is normally wedge-engaged with the pole body between the rotating shaft and the slide frame. It consists of a spring that presses the rotating shaft in the axial direction and locks the slide frame. By turning the operation knob on one end of the rotating shaft in the locked state, the frustoconical roller is attached to the pole body. The slide frame is slightly moved up and down, and the slide frame is unlocked by pushing the rotating shaft in the direction opposite to the direction in which the frustoconical roller engages with the pole body against the spring biasing force. A mirror device for total stations.   The total station mirror device according to claim 1, wherein the pole body is formed in a columnar or prismatic shape.

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