Reflection mirror device

Abstract

To provide a reflection mirror device which can easily fix a body section to a pole so that a reflection mirror has an arbitrary height position.SOLUTION: A reflection mirror device includes: a reflection mirror which reflects light; a body section which supports the reflection mirror; and a rod-like pole which is inserted into a hole formed in the body section. The pole has a constricted section which is provided at each preset height position and has a small outer diameter. The body section has a projection section which is energized toward the pole and can be engaged with the constricted section. In this reflection mirror device, the projection section is slid on a surface of the pole and the projection section is sequentially engaged with each constricted section provided at each preset height position, and thereby movement of the body section with respect to the pole becomes gradual to temporarily stop for each preset height position and the body section can be easily fixed to the pole so that the reflection mirror has an arbitrary height position.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a reflector device used as a target for an electronic distance measuring device. [Background technology]

[0002] Conventionally, a reflecting mirror device includes, for example, a reflecting mirror that reflects the tracking light or distance measuring light irradiated by an electronic distance measuring device, a pole that is erected in a direction perpendicular to the measurement surface, and a main body that is attached to the pole so as to be movable in the vertical direction and supports the reflecting mirror so as to be rotatable in the vertical direction. In such a reflecting mirror device, the main body is fixed at an arbitrary height position on the pole, the pole is erected in an arbitrary position on the measurement surface in the vertical direction, and the reflecting mirror is directed toward the electronic distance measuring device so as to reflect the tracking light or distance measuring light irradiated by the electronic distance measuring device, and the electronic distance measuring device receives the reflected light from the reflecting mirror, thereby performing distance measurement (for example, see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 7-260485 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the above reflector device, the hole through which the pole is inserted is formed in the center of the main body along the vertical direction, and even if the pole is marked with a mark indicating the height of the reflector, the marking is covered by peripheral members such as the arm located at the front of the main body and supporting the reflector, the level located at the rear of the main body, the handles provided on the left and right sides of the main body for fixing the main body to the pole and the handles for fixing the vertical rotation of the reflector, and the main body itself, making it difficult to visually determine from the outside at which height of the pole the reflector is located, and there is room for improvement in fixing the main body to the pole so that the reflector is at an arbitrary height. Note that if the height of the reflector is shifted, there is a risk of measurement errors occurring, especially when measuring the height of the measurement surface using an electronic distance measuring device.

[0005] The present invention has been made in consideration of the above circumstances, and its object is to provide a reflector device whose main body can be easily fixed to a pole so that the reflector can be positioned at any height. [Means for solving the problem]

[0006] Effective solutions for achieving the above-mentioned object are shown below. The operation and other details are explained as necessary. For ease of understanding, the corresponding configurations and other details are also shown in the embodiments of the invention as appropriate, but are not intended to be limiting.

[0007] In order to achieve the above object, the invention according to claim 1 of the present invention comprises: A reflector that reflects light; A main body portion supporting the reflector; a rod-shaped pole that is inserted into a hole formed in the main body, The pole has a narrowed portion having a small outer diameter provided at each of preset height positions, The main body portion has a protrusion that is biased toward the pole and can engage with the constricted portion. A reflector device comprising:

[0008] According to the reflector device of the invention of claim 1, when the main body is moved relative to the pole, the protrusion slides on the surface of the pole and sequentially engages with each of the constrictions provided at each preset height position, so that the movement of the main body relative to the pole can be stepped so that it temporarily stops at each preset height position. As a result, even if the markings showing the height position of the pole are covered by surrounding members, the main body can be easily fixed to the pole so that the reflector is at an arbitrary height position without visually checking the height position of the reflector relative to the pole (for example, see paragraphs

[0036] to

[0039] ).

[0009] In order to achieve the above object, the invention according to claim 2 of the present invention comprises: The main body portion rotatably supports the reflecting mirror, a rotation center of the reflecting mirror overlaps with a cross section of the constricted portion in a radial direction at least when the protruding portion engages with the constricted portion; 2. The reflector device according to claim 1 .

[0010] According to the reflector device of the invention of claim 2, when the protrusion engages with the constricted portion, the rotation center of the reflector overlaps with the radial cross section of the constricted portion, so that the reflector stops at a preset height position at the point where the main body, which is moved relative to the pole, stops. As a result, when the virtual reflective surface of the reflector includes the rotation center of the reflector, even if the markings indicating the height position of the pole are covered by peripheral members, the main body can be easily fixed to the pole so that the reflector is at an arbitrary height position without visually checking the height position of the reflector relative to the pole (for example, see paragraph

[0040] ).

[0011] In order to achieve the above object, the present invention relates to a method for manufacturing a semiconductor device comprising the steps of: The reflector further includes a disk-shaped operating unit that is screwed to the main body and that transitions the reflector between a rotatable state and a non-rotatable state, the protruding portion is provided together with a biasing means in a hole formed along an axis of the operating portion, and is capable of protruding from one end of the operating portion into the hole of the main body portion; An adjustment portion is provided at the other end of the operation portion, the adjustment portion being screwed into the operation portion and capable of adjusting the force with which the biasing means biases the protrusion portion. 3. The reflector device according to claim 1, wherein the reflector device is a reflector having a first surface and a second surface.

[0012] According to the reflector device of the invention of claim 3 of the present invention, the protrusion is provided together with the biasing means in a hole formed along the axis of the operating part, and can protrude from one end of the operating part into the hole of the main body part, so that the movement of the main body part relative to the pole can be made stepwise without changing the appearance of a conventional reflector device. In addition, an adjustment part is provided at the other end of the operating part, which is screwed into the operating part and can adjust the force with which the biasing means biases the protrusion, so that the main body part can be moved smoothly relative to the pole and can be reliably stopped at a preset height position. As a result, even if the marking indicating the height position of the pole is covered by a surrounding member, the main body part can be easily fixed to the pole so that the reflector is at an arbitrary height position without visually checking the height position of the reflector relative to the pole (for example, see paragraphs

[0041] to

[0042] ).

[0013] In order to achieve the above object, the invention according to claim 4 of the present invention comprises: The surfaces of the pole are colored in different colors on adjacent surfaces across the constricted portion, At least the tip of the protruding portion that comes into contact with the pole is made of resin. 4. The reflector device according to claim 1, wherein the reflector device is a reflector having a first surface and a second surface.

[0014] According to the reflector device of the invention according to claim 4 of the present invention, at least the tip of the protrusion is made of resin, so that even if the protrusion slides on the surface of the pole when the main body is moved relative to the pole, damage to the paint on the pole can be suppressed. As a result, even if the reflector device is used repeatedly, the height position of the reflector can be easily visually confirmed from the color of the surface of the pole, and the main body can be easily fixed to the pole so that the reflector is at any height position (for example, see paragraph

[0043] ).

[0015] In order to achieve the above object, the invention according to claim 5 of the present invention comprises: Further comprising a disk-shaped second operating part that can be screwed to the main body part to fix the main body part to the pole. 5. The reflector device according to claim 1, wherein the reflector device is a reflector having a first surface and a second surface.

[0016] According to the reflector device of the invention relating to claim 5 of the present invention, when the movement of the main body relative to the pole is stopped at a preset height position, the second operating part is operated, whereby the main body can be securely fixed to the pole, and the main body can be securely fixed to the pole so that the reflector is at any height position (see, for example, paragraphs

[0033] to

[0035] ). Effect of the Invention

[0017] In this manner, in the reflector device of the present invention, the main body can be easily fixed to the pole so that the reflector is at any desired height. [Brief description of the drawings]

[0018] [Figure 1] 1 is a perspective view showing the appearance of a reflecting mirror device according to an embodiment of the present invention; [Diagram 2] 1A is a plan view showing a part of a reflector device with the main body fixed to a survey pole, and FIG. 1B is a plan view showing a part of a reflector device with the main body movable along the survey pole. [Diagram 3]FIG. 4 is an exploded view showing a state in which the second handle portion is detached from the main body portion. [Figure 4] 5(a) to 5(c) are schematic side views of a reflector arrangement showing the step-by-step movement of the body relative to the survey pole. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] [1. Overall configuration of the reflector device] The reflector device 1 of this embodiment will be described in detail with reference to the drawings. Fig. 1 is a perspective view showing the appearance of the reflector device 1 of this embodiment, and more specifically, a perspective view showing the appearance of the reflector device 1 in which a survey pole 3 is inserted into a vertical through hole 20a of a main body 2 to which a reflector 1a is attached. Here, the reflector device 1 is a device used mainly for electronic distance measurement in surveying topography, etc., and is a device that reflects tracking light and distance measurement light irradiated from a light emitting unit of an electronic distance measuring device (not shown) toward a light receiving unit of the electronic distance measuring device.

[0020] As shown in Fig. 1, the reflector device 1 includes a reflector 1a having a virtual reflecting surface, a main body 2 supporting the rear end of the reflector 1a, a survey pole 3 inserted into a vertical through-hole 20a extending vertically through the center of the main body 2, a level 4 attached to the rear end of the main body 2, and a pair of left and right operation handles 5a, 5b attached to the left and right sides of the main body 2. Here, in Fig. 1, the longitudinal direction of the survey pole 3 is defined as the vertical direction, the side where the reflector 1a is attached to the main body 2 is defined as the front, and the side where the level 4 is attached to the main body 2 is defined as the rear. The reflector device 1 will be described in detail below.

[0021] [2. Structure of reflector] The reflector 1a has a box-shaped case 10 and a prism housed inside the case 10. The case 10 of this embodiment is formed in a substantially conical box shape with an open bottom, with a male screw formed at the apex, which is the rear end, and a transparent cover body covering the bottom, which is the front end, is provided on the bottom. The shape of the case 10 may be a cylinder or a polygonal prism such as a triangular prism, as long as it is a box shape with an open front end.

[0022] In the reflector 1a of this embodiment, a virtual reflection surface is formed by the prism housed in the case 10. The virtual reflection surface is a surface that reflects the tracking light and distance measurement light irradiated from the light emitting unit of the electronic distance measuring instrument, and in this embodiment, it is a surface that overlaps with the center of the vertical through hole 20a of the main body 2, more precisely, the center of the survey pole 3 inserted into the vertical through hole 20a, and this surface also includes a line connecting the aiming protrusions 23a and 24a described later and the rotation center 1b of the reflector 1a. Therefore, in the reflector 1a of this embodiment, the virtual reflection surface of the prism overlaps with the center of the survey pole 3, and when measuring the distance using the electronic distance measuring instrument, the lower end apex 31 of the survey pole 3 is placed at the point to be measured and the main body 2 is positioned along the horizontal direction, so that the distance from the observation point of the electronic distance measuring instrument can be accurately measured.

[0023] [Survey pole configuration] The survey pole 3 is formed in a long rod shape, and a lower end apex 31 is formed so that the lower end tapers. Specifically, the survey pole 3 includes a plurality of pole members formed in a rod shape of a preset length (e.g., 30.0 cm), and a ferrule member 33 having a flange portion 32 with a diameter larger than the diameter of the pole members formed at the upper end of the lower end apex 31. The plurality of pole members are formed with male threads extending from the upper end and female threads formed from the lower end to the inside (it may also be an embodiment in which a female thread is formed from the upper end to the inside and a male thread is formed extending from the lower end), and are configured so that the plurality of pole members can be easily connected. Furthermore, the lower pole member used at the bottom of the survey pole 3 among the multiple pole members is formed shorter than the other pole members by a preset length (for example, 5.0 cm in this embodiment, which is equal to the vertical length of the ferrule member) and has a female thread formed inside from the lower end, into which a male thread formed extending from the upper end of the ferrule member 33 can be screwed, so that the ferrule member 33 can be easily connected to the lower end of the lower pole member. Such a survey pole 3 can be easily disassembled to preset lengths, allowing the user to easily transport the survey pole 3.

[0024] The surfaces 34 of the multiple pole members of the survey pole 3 are painted in multiple colors. In detail, the surfaces 34 of the multiple pole members are painted in a different color from the adjacent surfaces 34 at every preset length, and the surfaces 34 of the multiple pole members in this embodiment are painted in red and white every 5.0 cm (may be every 1.0 cm, every 2.5 cm, every 10.0 cm, every 20.0 cm, etc.) so that the colors of the adjacent surfaces 34 differ every 5.0 cm (may be every 1.0 cm, every 2.5 cm, every 10.0 cm, every 20.0 cm, etc.) when the multiple pole members are connected. Note that the color of the paint on the surfaces 34 of the multiple pole members is not limited to red and white, and may be white and orange, yellow and black, or a combination of three or more colors such as red, yellow, and blue from the viewpoint of visibility. In addition, the color of the surfaces 34 of the multiple pole members is not limited to painting, but may be formed by attaching a sealing material such as a pre-colored film member to the surfaces 34 of the pole members, or may be formed by combining painting and a sealing material.

[0025] The survey pole 3 has a plurality of constrictions 35 formed on the surface 34. More specifically, the surfaces 34 of the plurality of pole members of the survey pole 3 have constrictions 35 with a diameter smaller than the diameter of the pole member formed at predetermined lengths, and the surfaces 34 of the plurality of pole members in this embodiment have a plurality of constrictions 35 formed such that the interval between adjacent constrictions 35 is 5.0 cm (it may be 1.0 cm, 2.5 cm, 10.0 cm, 20.0 cm, etc.) when the plurality of pole members are connected. The constrictions 35 are also formed at the joints between the plurality of pole members. From the viewpoint of maintaining the strength of the survey pole 3, it is preferable that the diameter of each constriction 35 is about 90% of the diameter of the pole member, and the width in the longitudinal direction of the pole member is about 10% of the diameter of the pole member. In addition, the vertical cross section of the constriction 35 may be, for example, L-shaped, C-shaped, or arc-shaped, but in this embodiment, in order to prevent the first protrusion 23b and the second protrusion 24b, which will be described later, from firmly engaging with each other, a constriction 35 having a L-shaped vertical cross section is adopted.

[0026] The ferrule member 33 has a disk-shaped flange portion 32 having a diameter about 20 to 50 percent larger than the diameter of the pole member of the survey pole 3, a lower end apex portion 31 formed in a tapered cone shape extending downward from the flange portion 32, and a rod-shaped connecting portion having approximately the same diameter as the pole member and extending upward from the flange portion 32. When the survey pole 3 is used for surveying, the lower end apex portion 31 is placed at the point to be surveyed so that its tip points to the point to be surveyed.

[0027] After the survey pole 3 is inserted into the vertical through-hole 20a of the main body 2, the flange portion 32 comes into contact with the main body 2 that has been moved along the survey pole 3 to the lower end, thereby preventing the main body 2 from falling off from the lower end side of the survey pole 3. Note that the shape of the flange portion 32 is not limited to a disk shape as long as it can prevent the main body 2 from falling off from the lower end side of the survey pole 3, and it may be formed into a polygonal column with each corner chamfered, or may be at least one rod-shaped body extending outward from the center.

[0028] The connecting portion of the ferrule member 33 extends upward from the upper end of the flange portion 32, and is provided with a male screw that can be screwed into a female screw formed at the lower end of the lower pole member of the survey pole 3, so that the ferrule member 33 is easily detachable from the lower pole member. The ferrule member 33 is repeatedly brought into contact with the point to be surveyed when the survey pole 3 is used repeatedly, and can be easily replaced when a defect such as damage occurs. The ferrule member 33 of this embodiment is formed so that the length from the lower end of the lower end apex 31 to the upper end of the connecting portion is 5.0 cm, and the length of the ferrule member 33 when attached to the lower pole member is 30.0 cm. In addition, the height position of the flange portion 32 may be set so that the height position of the reflector 1a when the main body portion 2 abuts against the flange portion 32 is 5.0 cm, from the viewpoint that the smaller the height position of the reflector 1a relative to the survey pole 3, the smaller the influence of the shaking of the user holding the survey pole 3 and the smaller the measurement error.

[0029] [Structure of the spirit level] The level 4 has a level body 41 formed in a disk-shaped box, and a liquid that is sealed in the level body 41 and forms an air bubble 42. The level body 41 has a transparent top surface so that at least the air bubble 42 can be seen from the outside, and the center of the top surface is formed in a dome shape that bulges slightly upward. A reference circle 43 is written on the top surface of the level body 41 so as to surround the center of the top surface of the level body 41. When the air bubble 42 is located at the center of the reference circle 43, this indicates that the level 4 is located in a position along the horizontal direction. At least three female screws are formed at a predetermined interval on the bottom surface of the level body 41 to allow adjustment of the level when the level 4 is attached to the main body 2.

[0030] [Main body configuration] The main body 2 has a block portion 20 formed in a generally rectangular block shape, a level installation portion 21 provided at the rear end of the block portion 20, an arm portion 22 formed in a generally U-shape so as to hold the left and right side surfaces of the block portion 20 from the front, a first handle portion 23 attached to the left side surface of the block portion 20 as viewed from the front, and a second handle portion 24 attached to the right side surface of the block portion 20 as viewed from the front. The rear end of the above-mentioned reflector 1a is detachably screwed to the front surface of the arm portion 22.

[0031] The block portion 20 is desirably made of a high-strength metal in order to suppress deformation of the main body portion 2 in accordance with the usage environment, etc. A cylindrical level installation portion 21 with only the top surface open is provided at the rear end of the block portion 20. The above-mentioned level 4 is fitted into the level installation portion 21, and the level 4 is fixed by at least three screws screwed in from below the level installation portion 21. The level reference between the main body portion 2 and the level 4 is adjusted by adjusting the at least three screws that fix the level 4 to the level installation portion 21.

[0032] 2(a) is a plan view showing a part of the reflector device 1 in a state where the main body 2 is fixed to the survey pole 3, and FIG. 2(b) is a plan view showing a part of the reflector device 1 in a state where the main body 2 is movable along the survey pole 3. More specifically, both are plan views showing a cross section of a part of the main body 2. As shown in FIG. 1 or FIG. 2, the block portion 20 is formed with a vertical through hole 20a extending in the vertical direction at approximately the center of the block portion 20, and a left-right through hole 20b extending in the left-right direction at approximately the center of the block portion 20. The vertical through hole 20a opens on the upper and lower surfaces of the block portion 20, and the above-mentioned survey pole 3 is inserted therethrough to enable the main body 2 to move along the longitudinal direction (vertical direction) of the survey pole 3. The left-right through hole 20b opens on the left and right side surfaces of the block portion 20, and is perpendicular to the vertical through hole 20a.

[0033] The first handle portion 23 is formed in a substantially disk shape, and an uneven grip is formed on its outer periphery to make it easier for the user to hold it. The first handle portion 23 passes through a hole formed on the left side portion as viewed from the front of the arm portion 22 formed in a substantially U-shape, and is screwed into the left and right through holes 20b of the block portion 20. As a result, the left side of the arm portion 22 as viewed from the front is attached to the block portion 20 so as to be able to swing.

[0034] The base end of the first handle portion 23 is provided with an aiming protrusion 23a that extends in a generally conical shape tapering outward to the left when viewed from the front. The tip of the aiming protrusion 23a is located on the rotation center 1b of the reflector 1a. The aiming protrusion 23a may be formed integrally with the first handle portion 23, but in this embodiment, a configuration is adopted in which a female screw is formed at the base of the first handle portion 23 along the rotation center 1b of the reflector 1a, and the aiming protrusion 23a is screwed into the female screw. Therefore, if the aiming protrusion 23a is damaged, only the aiming protrusion 23a can be easily replaced with a new aiming protrusion.

[0035] A first protrusion 23b is provided at the tip of the first handle portion 23, which protrudes from the left and right through holes 20b to the vertical through holes 20a in response to the operation of the first handle portion 23 and can come into contact with the survey pole 3 inserted through the vertical through hole 20a. Therefore, by operating the first handle portion 23, the first protrusion 23b can be pressed against the survey pole 3 and the survey pole 3 can be pressed against the right side surface in front view that forms the vertical through hole 20a, thereby fixing the main body portion 2 to the survey pole 3. The first protrusion 23b is made of, for example, resin, and can be replaced with a new first protrusion when it is damaged by coming into contact with the survey pole 3. In addition, the first protrusion 23b may be formed into a rod shape integral with the aiming protrusion 23a and inserted into a hole provided in the center of the first handle portion 23 and screwed into place. In this way, if the first protrusion 23b or the aiming protrusion 23a becomes damaged, they can be easily replaced with new first protrusions and aiming protrusions.

[0036] 3 is an exploded view showing the state in which the second handle portion 24 is removed from the main body portion 2. As shown in FIGS. 1 to 3, the second handle portion 24 is formed in a substantially disk shape, and an uneven grip is formed on its outer periphery to make it easier for the user to hold it. The second handle portion 24 passes through a hole formed on the right side portion of the arm portion 22 formed in a substantially U-shape as viewed from the front, and is screwed into the left and right through holes 20b of the block portion 20. As a result, the right side of the arm portion 22 as viewed from the front is attached to the block portion 20 so as to be able to swing.

[0037] Here, the arm portion 22 is supported by the first handle portion 23 and the second handle portion 24 to be rotatable about the center of the left and right through holes 20b as the rotation center 1b. In this embodiment, by operating the second handle portion 24, the arm portion 22 is sandwiched between the second handle portion 24 and the block portion 20, and the rotation of the arm portion 22 relative to the block portion 20 can be restricted, and by operating the second handle portion 24, the vertical orientation of the reflecting mirror 1a can be easily changed.

[0038] The base end of the second handle portion 24 is provided with an aiming protrusion 24a that extends in a generally conical shape tapering outward toward the right side as viewed from the front. The tip of the aiming protrusion 24a is located on the rotation center 1b of the reflector 1a. In this embodiment, a hole is formed in the center of the second handle portion 24 along the rotation center 1b of the reflector 1a, and the aiming protrusion 24a is screwed into a female screw formed at the end of the hole on the right side as viewed from the front. Therefore, if the aiming protrusion 24a is damaged, it is possible to replace only the aiming protrusion 24a with a new aiming protrusion.

[0039] The tip of the second handle portion 24 is provided with a second protrusion 24b that can be moved forward and backward relative to the vertical through-hole 20a by being biased by a biasing means 24c such as a coil spring or a leaf spring enclosed in a hole of the second handle portion 24. When the second protrusion 24b is in a deployed state in the vertical through-hole 20a, it can engage with each of the constrictions 35 of the survey pole 3 inserted into the vertical through-hole 20a. In detail, the tip of the second protrusion 24b is formed in a substantially hemispherical shape that can enter the gap formed as the constriction 35, and the second protrusion 24b is biased toward the survey pole 3. When the main body portion 2 is moved relative to the survey pole 3, the second protrusion 24b slides on the surface 34 of the survey pole 3 and sequentially engages with the constrictions 35 provided at each preset height position.

[0040] Here, in the conventional reflector device, even if there is something indicating the height of the main body part, such as a color boundary formed on the survey pole, the thing indicating the height, such as the color boundary formed on the survey pole, is covered by the reflector, arm part, level, two handle parts, etc., which are located around the main body part, so it is difficult for the worker to visually confirm at what height position of the survey pole the reflector is located, and it is difficult to fix the main body part to the survey pole so that the reflector is located at an arbitrary height position. If the height position of the reflector is shifted, there is a risk of a large measurement error occurring, especially when measuring the height of the measurement surface using an electronic distance measuring device. In contrast, in the reflector device 1 of this embodiment, a constricted portion 35 is provided at each preset height position of the survey pole 3, and a second protrusion 24b is provided in the hole of the second handle portion 24, which is biased by a biasing means 24c and can move in and out of the upper and lower through-holes 20a.Therefore, the movement of the main body portion 2 relative to the survey pole 3 can be made gradual, with the main body portion 2 temporarily stopping at each preset height position, and the main body portion 2 can be easily fixed to the survey pole 3 so that the reflector 1a is at any height position without visually checking the height position of the reflector 1a relative to the survey pole 3.

[0041] 4(a) and 4(b) are schematic side views of the reflector device 1 showing the stepwise movement of the main body 2 relative to the survey pole 3. As shown in Figs. 1 to 4, in the reflector device 1 of this embodiment, when the second protrusion 24b engages with the constricted portion 35, the radial cross section of the constricted portion 35 overlaps with the rotation center 1b of the reflector 1a, so that the reflector 1a is stopped at a preset height position at the location where the main body 2 moving relative to the survey pole 3 stops, and by operating the first handle portion 23 in a state where the reflector 1a is stopped at a preset height position, the main body 2 can be easily fixed to the survey pole 3 so that the reflector 1a is at an arbitrary height position without visually checking the height position of the reflector 1a relative to the survey pole 3, even if the marking of the height position formed on the survey pole 3 (the boundary line of the survey pole 3 with a different color) is covered by surrounding members and cannot be visually recognized.

[0042] Furthermore, according to the reflector device 1 of this embodiment, the second protrusion 24b is provided together with the biasing means 24c within a hole formed in the central part of the second handle portion 24 along the rotation center 1b of the reflector 1a (along the axis of the second handle portion 24), so that the movement of the main body portion 2 relative to the survey pole 3 can be made gradual without changing the appearance of a conventional reflector device.

[0043] In addition, the aiming protrusion 24a is screwed onto the other end of the second handle portion 24, and the space in which the biasing means 24c is stored can be expanded or reduced depending on the screwed state of the aiming protrusion 24a.In turn, the aiming protrusion 24a acts as an adjustment portion that can adjust the force with which the biasing means 24c biases the second protrusion 24b, so that depending on the user's operation, the main body portion 2 can be moved more smoothly relative to the survey pole 3, or the main body portion 2 can be reliably stopped at a preset height position relative to the survey pole 3.

[0044] At least the tip of the second protrusion 24b that abuts against the survey pole 3 is made of resin, and in this embodiment, the entire second protrusion 24b is made of resin. When the main body 2 is moved relative to the survey pole 3, the second protrusion 24b slides on the surface 34 of the survey pole 3. However, since the second protrusion 24b in this embodiment is made of resin, even if the second protrusion 24b slides on the surface 34 of the survey pole 3, damage to the paint on the surface 34 of the survey pole 3 can be suppressed. As a result, even if the reflector device 1 is used repeatedly, the height position of the reflector 1a can be easily visually recognized from the color of the surface 34 of the survey pole 3, and the main body 2 can be easily fixed to the survey pole 3 so that the reflector 1a is at an arbitrary height position.

[0045] [Example of use of reflector device] In the reflector device 1 of this embodiment, as shown in Fig. 4(a), in a state where the main body 2 is fixed to the survey pole 3 so that the reflector 1a is at a height position of 10.0 cm, first, the first handle portion 23 is operated to retract the first protrusion 23b that presses the survey pole 3 against the right side surface of the vertical through hole 20a when viewed from the front, and after the restriction on the movement of the main body 2 relative to the survey pole 3 is released, the main body 2 is moved upward relative to the survey pole 3. At this time, in the reflector device 1 of this embodiment, the second protrusion 24b slides on the surface 34 of the survey pole 3, and when the second protrusion 24b engages with the constricted portion 35, a clicking sound is generated together with the impact of the second protrusion 24b engaging with the constricted portion 35, and the user can recognize that the height position of the reflector 1a relative to the survey pole 3 is at a preset position. In addition, in the reflector device 1 of this embodiment, the force with which the biasing means 24c biases the second protrusion 24b can be adjusted by operating the aiming protrusion 24a, and the feel of use when the main body 2 is moved relative to the survey pole 3 can be adjusted according to the user.

[0046] Next, in the reflector device 1 of this embodiment, when the above-mentioned impact and sound are transmitted to the user twice, the main body 2 moves from the state shown in Fig. 4(a) to a position raised 10.0 cm with respect to the survey pole 3 as shown in Fig. 4(b), and the user can recognize that the reflector 1a is stopped at a height of 20.0 cm. After this, the first handle part 23 is operated to move the first protrusion part 23b so as to press the survey pole 3 against the right side surface of the vertical through hole 20a as seen from the front, thereby restricting the movement of the main body part 2 with respect to the survey pole 3. In addition, the second handle part 24 is operated to release the restriction on the vertical rotation of the reflector 1a, and the reflector 1a is rotated downward toward the electronic distance measuring device, and the second handle part 24 is operated again to restrict the vertical rotation of the reflector 1a. Thereafter, by visually checking the level 4, the survey pole 3 is set up vertically at the point to be surveyed, and the survey is carried out using the electric distance measuring device.

[0047] The present invention has been described above with reference to preferred embodiments, but the present invention is not limited to these embodiments. As described below, various improvements and design changes are possible without departing from the gist of the present invention.

[0048] That is, in the above embodiment, the second protrusion 24b is biased so as to be able to move in and out of the vertical through hole 20a, thereby allowing the movement of the main body 2 relative to the survey pole 3 to be gradual; however, for example, the first protrusion 23b may be formed from an elastic body, or the first protrusion 23b may be biased so as to be able to move in and out of the vertical through hole 20a. However, in these cases, there is a risk that the load will be concentrated on the first protrusion 23b that fixes the main body 2 to the survey pole 3, causing early damage to the first protrusion 23b, and therefore from the viewpoint of continuous use of the reflector device 1, the above-mentioned aspect of the present embodiment is more preferable.

[0049] In addition, in the above embodiment, the first handle portion 23 on the left side when viewed from the front restricts the movement of the main body portion 2 relative to the survey pole 3, and the second handle portion 24 on the right side when viewed from the front restricts the rotation of the reflector 1a relative to the main body portion 2, and the force with which the biasing means 24c biases the second protrusion portion 24b is adjustable, but, for example, the first handle portion 23 may be provided on the right side of the main body portion 2 when viewed from the front, and the second handle portion 24 may be provided on the left side of the main body portion 2 when viewed from the front.

[0050] Furthermore, a marking such as a number indicating the height position of the reflector 1a may be formed on the surface 34 of the survey pole 3. The marking is formed, for example, by printing, stamping, or painting on the upper side of the constricted portion 35. The marking is formed at a preset distance above the corresponding constricted portion 35 so as not to be covered by the main body portion 2 located at the constricted portion 35. Here, the preset distance is, for example, at least the distance from the center of the left and right through holes 20b of the main body portion 2 to the upper end of the main body portion 2 to the constricted portion one above the corresponding constricted portion. Such a marking allows the user to easily visually recognize the height position of the reflector 1a relative to the survey pole 3, and allows the main body portion 2 to be easily fixed to the survey pole 3 so that the reflector 1a is at an arbitrary height position. [Explanation of symbols]

[0051] 1 Reflector device 1a Reflector 2 Main unit 20a Upper and lower through holes 24b Second protrusion 3. Survey Pole 35 Waist 4 Level

Claims

1. A reflector that reflects light; A main body portion supporting the reflector; a rod-shaped pole that is inserted into a hole formed in the main body, The pole has a narrowed portion having a small outer diameter provided at each of preset height positions, The main body portion has a protrusion that is biased toward the pole and can engage with the constricted portion. A reflector device comprising:

2. The main body portion rotatably supports the reflecting mirror, a rotation center of the reflecting mirror overlaps with a cross section of the constricted portion in a radial direction at least when the protruding portion engages with the constricted portion; 2. The reflector device according to claim 1.

3. The reflector further includes a disk-shaped operating unit that is screwed to the main body and that transitions the reflector between a rotatable state and a non-rotatable state, the protruding portion is provided together with a biasing means in a hole formed along an axis of the operating portion, and is capable of protruding from one end of the operating portion into the hole of the main body portion; An adjustment portion is provided at the other end of the operation portion, the adjustment portion being screwed into the operation portion and capable of adjusting the force with which the biasing means biases the protrusion portion.

3. The reflector device according to claim 1, wherein the reflector device is a reflector having a first surface and a second surface.

4. The surfaces of the pole are colored in different colors on adjacent surfaces across the constricted portion, At least the tip of the protruding portion that comes into contact with the pole is made of resin.

4. The reflector device according to claim 1, wherein the reflector device is a reflector having a first surface and a second surface.

5. Further, a disk-shaped second operating part is provided which is screwed to the main body part to fix the main body part to the pole.

5. The reflector device according to claim 1, wherein the reflector device is a reflector having a first surface and a second surface.

Images