JPH062127U - Level Adapter for Level Sensor - Google Patents

Abstract

(57) [Summary] [Purpose] To enable quick and accurate reading of the staff scale. [Structure] This level sensor staff adapter includes an adapter body 1, an adapter fixing screw 3 for fixing the adapter body 1 to the staff 2, and a sensor fixing screw 5 for fixing a level sensor 4 to the adapter body 1. It has and. The entire center portion of the adapter fixing portion 7 facing the scale display of the staff 2 was molded with transparent resin, and a red scale reading scale 8 was provided on the surface of the transparent resin portion 7a facing the staff scale. As a result, the scale of the staff 2 is always visible, and reading errors due to parallax can be prevented.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a staff adapter for a level sensor for fixing a level sensor used for leveling to a staff.

[0002]

[Prior art]

 As a conventional level sensor staff adapter, as shown in FIG. 3, a resin adapter body 31, an adapter fixing screw 33 for fixing the adapter body 31 to the staff 32, and a level sensor on the adapter body 31. Some include a sensor for fixing 34 and a fixing screw 35.

The sensor fixing portion 36 of the adapter body 31 is provided with a positioning pin 39 for aligning the light receiving center position 40 of the level sensor 34 with the upper end 37a of the adapter fixing portion 37 of the adapter body 31, and A hole 36a for the sensor fixing screw is provided.

In order to perform leveling, the level sensor staff adapter to which the level sensor 34 is fixed is slid along the staff 32, and the level sensor 34 raises the height of the laser beam projected from an electronic level device (not shown). When the position is detected, the adapter fixing screw 33 is screwed in to fix the level sensor staff adapter to the staff 32. Then, the scale of the staff 32 that matches the upper end 37a of the adapter fixing portion 37 is read.

[0005]

[Problems to be solved by the device]

 However, in the above-mentioned level sensor staff adapter, since the entire adapter body 31 including the adapter fixing portion 37 is molded of opaque resin, when the scale of the staff 32 is covered by the adapter fixing portion 37, the scale indication is displayed. In addition to the problem of being invisible, the adapter fixing part 37 has a thickness, which causes a reading error due to parallax.

The present invention has been made in view of such circumstances, and an object thereof is to provide a staff adapter for a level sensor that can quickly and accurately read the staff scale.

[0007]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, a level sensor staff adapter according to a first aspect of the present invention is a level sensor for fixing a level sensor for leveling using a laser beam projected from an electronic level device to a staff. In the standard adapter, the part that covers the standard scale was made transparent.

Further, in the level sensor staff adapter according to a second aspect of the present invention, a scale reading scale is provided on a surface of the transparent portion facing the scale scale.

Further, in the leveling rod adapter according to the third aspect of the invention, the transparent portion is a magnifying lens.

[0010]

[Action]

 As mentioned above, since the part that covers the staff scale is transparent, the entire staff scale is always visible.

Further, since the scale reading scale is provided on the surface of the transparent portion opposite to the scale scale, the scale scale can be read without being affected by the thickness of the transparent portion.

Furthermore, since the transparent portion is a magnifying lens, the scales and numbers of the staff are magnified.

[0013]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing a staff adapter for a level sensor according to an embodiment of the present invention. This level sensor staff adapter comprises an adapter body 1, an adapter fixing screw 3 for fixing the adapter body 1 to the staff 2, and a sensor fixing screw 5 for fixing the level sensor 4 to the adapter body 1. ing.

The adapter body 1 is composed of a flat plate-shaped sensor fixing portion 6 and an adapter fixing portion 7 having a U-shaped cross section which is integrally connected to the sensor fixing portion 6. The adapter fixing portion 7 is slidably fitted on the staff 2. Scales and numbers are provided on the surface of the staff 2 along the vertical direction, and the entire central portion of the adapter fixing portion 7 facing the scale display is formed of a transparent resin containing glass fibers. A red scale reading scale 8 is provided on the surface of the transparent resin portion (transparent portion) 7a facing the scale. The adapter fixing screw 3 is attached to the side surface of the adapter fixing portion 7.

A hole 6 a for a sensor fixing screw is provided in the lower portion of the sensor fixing portion 6, and a positioning pin 9 is provided in the upper portion. On the other hand, on the back surface of the level sensor 4, a hole (not shown) for inserting the position pin 9 and a female screw (not shown) for screwing the sensor fixing screw 5 are respectively provided. When the positioning pin 9 enters into the hole on the back surface of the level sensor 4, the light receiving center position 10 of the level sensor 4 and the scale reading scale 8 of the transparent resin portion 7a coincide with each other.

Next, how to use the leveling rod adapter of this embodiment will be described.

First, the level sensor 4 is fixed to the level sensor rod adapter. To fix the level sensor staff adapter, the back surface of the level sensor 4 is brought into contact with the surface of the sensor fixing portion 6 of the adapter body 1. At this time, the positioning pin 9 of the sensor fixing portion 6 is inserted into the hole on the rear surface of the level sensor 14, and the female screw on the rear surface of the level sensor 4 is aligned with the hole 6a of the sensor fixing portion 6. Then, the sensor fixing screw 5 is screwed into the female screw on the back surface of the level sensor 4. In this way, the level sensor 4 is fixed to the adapter body 1 in a state where the light receiving center position 10 of the level sensor 4 and the scale reading scale 8 of the transparent resin portion 7a are aligned.

Next, the adapter fixing portion 7 of the adapter body 1 is fitted to the staff 2.

After that, the laser beam projected from the electronic level device (not shown) is received by the light receiving section 4 a of the level sensor 4. Since the height position of the laser beam is displayed on the display section 4b of the level sensor 4, the level sensor staff adapter is slid along the staff 2 while watching the display section 4b. Then, when the laser beam overlaps the light receiving center position 10 of the level sensor 4, the adapter fixing screw 3 is tightened. As a result, the level adapter for level sensor is fixed.

Finally, the scale of the staff 2 that matches the scale reading scale 8 of the transparent resin portion 7a of the adapter body 1 is read. Since the central portion of the adapter fixing portion 7 facing the scale of the staff 2 is the transparent resin portion 7a, the scale and the numbers of the staff 2 are not hidden and the reading is not hindered. Further, since the scale reading scale 8 is provided on the scale-opposing surface of the transparent resin portion 7a, the value of the scale scale can be read without parallax.

In this embodiment, the case where a part of the adapter body 1 is made transparent has been described, but instead of this, the entire adapter body 1 may be made of transparent resin.

FIG. 2 is a perspective view showing a staff adapter for level sensor according to another embodiment of the present invention. The same parts as those in the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted.

While the transparent resin portion 7a in the embodiment of FIG. 1 is a simple transparent plate, the transparent resin portion 17a is a cylindrical lens in this embodiment as shown in FIG.

According to the level sensor staff adapter of this embodiment, the scales and numbers of the staff 2 are enlarged, and the staff can be read more accurately.

In this embodiment, the transparent resin portion 17a is a cylindrical lens, but instead of this, a Fresnel lens or the like can be used to obtain the same effect.

[0027]

[Effect of device]

 As described above, according to the level sensor staff adapter according to the first aspect of the invention, at least the portion covering the staff scale is made transparent, so that the staff scale is always visible and can be easily read.

According to the level sensor staff adapter according to the second aspect of the invention, since the scale reading scale is provided on the surface of the transparent portion facing the scale scale, the parallax is not affected by the thickness of the transparent portion during reading. It is possible to prevent a reading error due to.

Further, according to the level sensor staff adapter according to the third aspect of the invention, since the transparent portion is the magnifying lens, the staff scales and numbers can be magnified and can be read more accurately.

[Brief description of drawings]

FIG. 1 is a perspective view showing a staff adapter for a level sensor according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a staff adapter for a level sensor according to another embodiment of the present invention.

FIG. 3 is a perspective view showing a conventional level sensor staff adapter.

[Explanation of symbols]

 2 Level gauge 4 Level sensor 7a Transparent resin part (transparent part) 8 Scale reading scale 17 Cylindrical lens (magnifying lens)

Claims (3)

[Scope of utility model registration request] 1. In a level sensor staff adapter for fixing a level sensor for leveling using a laser beam projected from an electronic level device to a staff, at least a portion covering the staff scale is made transparent. A staff adapter for a level sensor, which is characterized in that 2. The level sensor staff adapter according to claim 1, wherein a scale reading scale is provided on a surface of the transparent portion facing the staff scale. 3. The leveling rod adapter according to claim 2, wherein the transparent portion is a magnifying lens.