Cylindrical inclinometer

Abstract

To provide an inclinometer that can measure inclination angles by preventing a sliding state in which the measured value continues to move in accordance with vibration even under severe engine vibration, has a simplified structure, and is highly versatile. [Solution] This inclinometer is constructed by filling a cylindrical container member 01 with a viscous liquid 02, putting a metal ball 03 inside, and sealing both ends with caps 04. When the side of the R-surface of the cylindrical container member is placed as the bottom, the metal ball is located at the deepest point of the R-surface, and when tilted, it moves gently to the new deepest point, so the inclination angle can be measured from the position of the metal ball before and after the movement. Furthermore, by using a flexible material for the cylindrical container member and bending the cylindrical container member, the size of the R-surface angle can be adjusted according to the application, and by making the cap detachable, the viscosity of the viscous liquid can be changed, and a vibration suppression effect according to the application can be achieved.

Description

[Technical field]

[0001] The present invention relates to an inclinometer used to measure the inclination angle of an object. [Background technology]

[0002] In recent years, at construction sites and other locations, inclinometers are often used to measure the level of the ground or objects. These include "pendulum type" in which a magnet is attached to a pendulum and a magnetic sensor is used to measure the inclination when the pendulum tilts toward the center of the earth due to gravity, and "float type" in which inclinometers measure inclination from changes in the amount of static electricity in a float inside a container filled with liquid and gas. However, inclinometers that use these principles are vulnerable to changes in acceleration, and when used in vehicles and other places that are subject to frequent vibrations, it is known that corrections must be made using a gyro sensor (angular velocity sensor), which detects how many degrees the angle changes per second relative to a reference axis.

[0003] Also, the inclinometer (quoted from the claims of the utility model registration) in Utility Model Document 1, "characterized in that on the surface of a hemispherical transparent cell, multiple meridians are displayed as lines where an elevation perpendicular to the base and passing through the apex intersects with the cell surface, and multiple parallels are displayed as lines where a plane parallel to the base intersects with the cell surface, and the inside of the cell is filled with liquid leaving air bubbles for indication" is a technology that is widely used as an inclinometer like the "pendulum type" and "float type" mentioned above, and is used, for example, when a small air bubble as shown in Figure 9 is attached to a stepladder to check whether it is set up horizontally, or when a similar air bubble is attached to a DIY shelf to check whether it is tilted. Also, as described in "Materials" in Non-Utility Model Document 1, the material of these inclinometers is generally an acrylic resin body, filled with a petroleum-based liquid, and sealed with air bubbles remaining. The inclinometer, which uses this air bubble to measure horizontality and angles, has the advantage of being able to quickly detect changes in inclination even with a slight movement, and has a simple structure. ,bloodIt is known that beginners who use chainsaws practice aligning the notch at a 45 degree angle and the bottom cutting line of the notch horizontally so that they can cut trees safely. When doing this, they attach an incline angle meter to the guide bar or body of the chainsaw with a magnet, as shown in Figure 10. However, the vibrations of the engine are directly transmitted to the incline angle meter, causing the air bubbles to collapse and the measured value to constantly fluctuate in accordance with the vibrations, which poses the issue that "depending on the application, it may be difficult to measure accurate horizontality or inclination angle."

[0004] Furthermore, in recent years, there have been a wide variety of inclinometers, including an inclinometer with a stainless steel ball instead of an air bubble as shown in Non-Utility Model Document 2, designed for various purposes such as keeping a yacht level while sailing or leveling a camper to make it more comfortable, as shown in the left side of Fig. 11 (see Non-Utility Model Document 3), and for measuring the inclinometer slope of a riding location by attaching it to a bicycle handlebar as shown in the right side of Fig. 11 (see Non-Utility Model Document 4), and an inclinometer for ships as shown in Fig. 12 (see Non-Utility Model Document 5), which uses an oil damper to suppress small swaying. On the other hand, the inclinometer with the stainless steel ball prevents the collapse of the air bubble when used in a place where small vibrations are constantly occurring, such as an engine, but there remains a problem that the stainless steel ball keeps moving, and the inclinometer with the oil damper includes a structure in which oil moves through a valve when a piston with a small valve moves due to vibration, which creates a new problem of a complicated structure, and there is still room for further improvement.

[0005] In addition, as mentioned above, the fact that the "measurable inclination angle," "shape of the inclinometer body," and "method of installation on the object to be measured" vary widely depending on the application means that a different inclinometer is required depending on the purpose and the object to be measured. Therefore, if an inclinometer that you own is used for a purpose other than its original purpose, you must search for a place where a horizontal surface can be secured and where the installation method is easy, which creates an issue with versatility and also leaves room for improvement in this regard. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Jitsuzen Showa 62-083913 Inclinometer [Non-Patent Document 1] Round vial φ11 Blue 2 pieces / Shinwa Sokutei Co., Ltd. Home page Product information https: / / www.shinwasokutei.co.jp / products / 76530 / [Non-Patent Document 2] All Inclinometers / Sun Company, Inc. Homepage https: / / levogage.com / collections / inclinometers [Non-Patent Document 3] Lev-o-gage / All Inclinometers / Sun Company, Inc. Home page https: / / levogage.com / products / product_7f777420-07f0-b955-fc36-fc89521ac9d6 [Non-Patent Document 4] CyclClimb Bike Inclinometer / All Inclinometers / Sun Company, Inc. Homepage https: / / levogage.com / products / product_21756502-f397-a8de-50e1-f45abc9e5291 [Non-Patent Document 5] Marine Clinometer / Daiko Instruments Co., Ltd. Website http: / / daiko.asia / dcl.html Summary of the Invention [Problem to be solved by the invention]

[0007] Therefore, the objective of this invention is to provide an inclinometer that can measure the inclination angle of an inclined surface, prevents the measured value from slipping and moving in response to vibration even under the intense vibration of an engine such as a chainsaw, has a simplified structure, and is highly versatile. [Means for solving the problem]

[0008] In order to solve the above problems, the inclination angle meter of the present invention is a U-shaped cylindrical transparent or translucent container member that is attached to a chainsaw, wherein the side of the body of the U-shaped container member is provided with an inclination angle scale, and the underside of the body member has either a flat surface or a rounded surface or both, and the inside of the U-shaped container member is filled with a viscous liquid, a metallic sphere is placed inside, and both ends of the U-shaped container member are sealed with caps. In this inclination angle meter, the viscous liquid has a viscosity that is sufficient to suppress the sliding state in which the metallic sphere inside the U-shaped container member continues to move due to vibration under continuous intense vibration. The inclination angle meter is characterized in that the U-shaped cylindrical container member is flexible, and an uneven portion or a fixing device is provided on the object to be measured for the inclination angle, or both ends of the U-shaped cylindrical container member are provided with hard holding members connectable to the object to be measured, and the R angle of the flat surface or the R surface of the bottom surface of the body of the cylindrical container member can be adjusted by connecting the inclination angle meter to the object to be measured through the uneven portion, the fixing devices, or the hard holding members.Furthermore, the inclination angle meter is characterized in that a hard holding member detachable from the U-shaped cylindrical container member, or an openable and closable cap is provided on a part of the U-shaped cylindrical container member or the hard holding member, and the liquid can be replaced with a viscous liquid having a different viscosity. In addition, the inclination angle meter of the present invention is a cylindrical transparent or semi-transparent container member attached to a chainsaw, the side of the body of the cylindrical container member is provided with an inclination angle scale, the inside of the cylindrical container member is filled with a viscous liquid, a metallic sphere is placed inside the cylindrical container member, and both ends of the cylindrical container member are sealed with caps, the viscous liquid has a viscosity that can suppress the sliding state in which the metallic sphere inside the cylindrical container member continues to move due to vibration under continuous violent vibration. Also, the inclination angle meter is characterized in that the cylindrical container member is flexible, and an uneven portion or a fixing device is provided on the object to be measured for the inclination angle, or the both ends of the cylindrical container member are provided with hard holding members that can be connected to the object to be measured, and the inclination angle meter and the object to be measured are connected through the uneven portion, the fixing device, or the hard holding member, thereby bending the lower surface of the body of the cylindrical container member and adjusting the shape of the R surface of the bent portion. Furthermore, the present invention is characterized in that it is provided with a hard holding member that is detachable from the cylindrical container member, or an openable and closable cap on a part of the cylindrical container member or the hard holding member, making it possible to replace the liquid with a viscous liquid of a different viscosity. Effect of the Invention

[0009] The present invention relates to a cylindrical transparent or translucent container member, the side of the body of the cylindrical container member is provided with an inclination angle scale and has either a flat surface or an R surface or both, the inside of the cylindrical container member is filled with a viscous liquid, hard spheres are placed inside the cylindrical container member, both ends of the cylindrical container member are sealed with caps, the viscous liquid has a viscosity that can suppress the sliding state in which the hard spheres inside the cylindrical container member move around due to vibration under continuous intense vibration, and the inclination angle meter is attached to a chainsaw. When the inclination angle meter according to the present invention is installed on a chainsaw with the flat surface of the side of the body of the cylindrical container member of the inclination angle meter as the bottom surface and horizontal to the installation surface of the object to be measured, the hard spheres will remain stationary in the position at the time of installation, and then when the installation surface is tilted, the inclination angle meter will also tilt, and the hard spheres in the viscous liquid will move gently to the lower end of the tilted inclination angle meter. Next, when the inclinometer is placed on the R-surface of the body side of the cylindrical container member as the bottom surface, the hard sphere is located at the deepest position of the R-surface, and when the installation surface is inclined, the inclinometer also inclines and the deepest position changes, so the hard sphere moves gently to the new deepest position. By checking the position of the hard sphere before and after the movement using the inclination angle scale provided on the body side of the cylindrical container member, it is possible to determine whether the installation location is level or to measure the inclination angle. The viscosity of the viscous liquid is increased to a level that can suppress the sliding state in which the liquid continues to move in accordance with the vibration even under the intense vibration of an engine such as a chainsaw, so that vibration suppression is possible without requiring structures such as a gyro sensor or an oil valve, and the structure can be simplified. In addition, the cylindrical container member of the inclinometer is made of a flexible material, and an uneven portion or a fixing device or the like is provided on the object to be measured by the inclinometer, or a hard holding member that can be connected to the object to be measured is provided on both ends of the cylindrical member, and the inclinometer and the object to be measured are connected via the uneven portion, the fixing device, or the hard holding member, so that the body of the cylindrical container member underIn the case of an inclinometer characterized in that the angle R of the flat surface or the R surface can be adjusted, the degree of bending of the cylindrical container member can be changed by selecting the shape of the projections and recesses for fitting the inclinometer body, the fixing device provided on the object to be measured, or the position for connecting the object to the inclinometer body through the hard member, and the body of the cylindrical container member can be adjusted. under It is possible to adjust the surface to a rounded surface, or to make the angle of the rounded surface larger or smaller. under By returning the R surface to a flat surface, it becomes easier to carry and store, and space saving can be achieved, which has the effect of expanding the range of uses and improving convenience. In addition, by providing a hard holding member that can be attached and detached from the cylindrical container member, or a cover that can be opened and closed on the cylindrical container member or the hard holding member, it becomes possible to replace viscous liquids with those of different viscosities, and customization such as using a low-viscosity liquid when smooth movement is important can be easily performed, further enhancing versatility. [Brief description of the drawings]

[0010] [Figure 1] Front view of cylindrical inclinometer [Diagram 2] Side view of cylindrical inclinometer [Diagram 3] A-A view of cylindrical inclination angle meter [Figure 4] Example of a cylindrical inclinometer [Diagram 5] Front view of a flexible cylindrical inclinometer [Figure 6] Front view of a flexible cylindrical inclinometer bent into a semicircular shape [Figure 7] FIG. 1 is a top view of an embodiment of a flexible cylindrical inclinometer. [Figure 8] AA arrow view of one embodiment of a flexible cylindrical inclinometer [Figure 9] Example of a round vial [Figure 10] Example of a round bubble attached to a chainsaw (front view) [Figure 11] Example of an inclinometer using a stainless steel ball [Figure 12]Example of an inclinometer using an oil damper DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Regarding the configuration of the cylindrical inclinometer (claims 1 and 4) DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the inclinometer of the present invention will be described below with reference to the accompanying drawings. The U-shaped cylindrical inclination angle meter shown in the front view of Fig. 1, the side view of Fig. 2, and the A-A arrow view of Fig. 3 is configured by filling a hollow cylindrical container member 1 with a viscous liquid 2, placing a metal ball 3 in the viscous liquid 2, closing both ends of the U-shaped cylindrical container member 1 with caps 4, and providing an inclination angle scale 5 on the side of the body of the U-shaped cylindrical container member. The bottom surface of the body of the U-shaped cylindrical container member 1 of the inclination angle meter shown in Fig. 1 has an R-surface, and when the U-shaped cylindrical container member 1 is placed in a direction 7 in which the inclination angle of the object to be measured is to be measured with the R-surface of the bottom surface as shown in the left diagram of Fig. 4, the metal ball 3 is located at the deepest position of the R-surface. After that, when the object to be measured is tilted in the previously set direction 7 in which the inclination angle is to be measured (actual tilted direction 8) as shown in the right diagram of Fig. 4, the deepest position of the inclination angle meter changes, and the metal ball 3 in the viscous liquid 2 moves gently to the new deepest position. 5, 6, 7 and 8, a cylindrical inclinometer is configured by filling a hollow cylindrical container member 1 with a viscous liquid 2, placing a metal ball 3 in the viscous liquid 2, sealing both ends of the cylindrical container member 1 with caps 4, and providing an inclination angle scale 5 on the side of the body of the cylindrical container member. The configuration is the same as that of the U-shaped cylinder inclinometer shown in Fig. 1, but the bottom surface of the body of the cylindrical container member 1 does not have an R surface and is configured only as a flat surface. In such a case, the inclinometer shown in Fig. 5 is installed horizontally with respect to the measurement surface of the object to be measured, with the flat surface of the bottom surface of the body of the cylindrical container member 1 as the bottom surface, and when the horizontality is maintained, the metal ball 3 remains stationary in the position at the time of installation. After that, when the installation surface is tilted, the inclinometer also tilts, and the metal ball 3 in the viscous liquid 2 moves gently to the lower end of the inclinometer. Therefore, regardless of whether the shape of the underside of the body of the cylindrical container member 1 is flat or rounded, by measuring the position of the metal ball 3 before and after movement using the inclination angle scale 5 provided on the side of the body of the cylindrical container member 1, it is possible to determine whether the surface to be measured is horizontal, and further, if the shape of the underside of the body of the cylindrical container member 1 is rounded, the inclination angle can be measured.

[0012] Cylindrical container components The cylindrical container member 1 is preferably made of a transparent or semi-transparent material that allows the position of the metal ball 3 to be visually recognized from the outside so that the inclinometer according to the present invention can measure the horizontal or inclined angle of the measured object based on the position of the metal ball 3 in the cylindrical container member 1. The shape of the cylindrical container member 1 must include either a flat surface or a rounded surface, or both, on the bottom surface of the body of the cylindrical container member 1 so that the cylindrical container member 1 can function as a level or an inclinometer. When the shape of the cylindrical container member 1 is such that the rounded surface of the bottom surface of the body is the bottom surface, as in the cylindrical inclinometer shown in Figure 1, it is easier to measure the inclination angle by displaying multiple equally spaced inclination angle scales 5 on the cylindrical container member 1. 1, the R surface is semicircular and can measure +90 degrees to -90 degrees, but the R angle can be changed to a shape that can measure +45 degrees to -45 degrees for the purpose of measuring the inclination angle of a vehicle, or a shape that can measure +5 degrees to -5 degrees for the purpose of measuring whether the vehicle is horizontal, or other shapes can be selected according to the intended use. On the other hand, in order to function as a level, it is sufficient to have at least one scale or point that indicates the horizontal state, and there are no limitations on the shape, size, number, or quantity of scale marks on the inclination angle scale 5.

[0013] Viscous liquids The viscous liquid 2 fills the cylindrical container member 1 and is intended to move the metal ball 3 placed in the cylindrical container member 1 slowly. The purpose of use of commercially available inclinometers includes ensuring the safety of vehicles while they are moving, so it is important to shorten the time it takes to measure the inclinometer. For this reason, the viscosity required for the oil used is merely sufficient to achieve smooth movement, and as mentioned above, in places where small vibrations such as an engine are constantly occurring, there remains a problem that the bubbles and spheres used for measurement will continue to move. On the other hand, the present invention aims to solve the above problem by increasing the viscosity of the liquid that fills the cylindrical container member 1 more than that of conventional liquids so that the metal ball 3 placed in the cylindrical container member 1 will not move due to small vibrations such as those of an engine. In other words, it can be said that the purpose of using a viscous liquid is different from that of commercially available inclinometers. Therefore, when attaching the inclinometer of the present invention to the guide bar of the chainsaw described above with a magnet or the like, it is necessary to obtain a vibration suppression effect in places where strong vibrations occur, and it is desirable to set the viscosity at about 50 (mm2 / s). In addition, since structures such as a gyro sensor or oil valve are not required, the vibration suppression effect of the viscous liquid 2 contributes greatly to the miniaturization of the inclinometer, the simplification of the structure, and the expansion of its applications.

[0014] A method for sealing hard spherical and cylindrical container components The metal ball 3 is assumed to be made of a material such as stainless steel, aluminum alloy, titanium alloy, or nickel alloy, which is a hard metal that forms a passive film on its surface that is resistant to rust and corrosion caused by liquids, but materials such as rubber and plastic can also be used, and there is no limitation to these. Furthermore, the caps 4 for closing both ends of the cylindrical container member 1 are attached so that the viscous liquid 2 and the metal balls 3 filling the cylindrical container member 1 do not spill out, but are not necessarily caps and can be any holding member made of a material and shaped to close both ends of the cylindrical container member 1. When closing the ends of the cylindrical container member 1 with the caps 4, air may not escape from the cylindrical container member 1 and may remain as air bubbles, but as long as the cylindrical container member 1 is almost filled with the viscous liquid 2, the presence or absence of air bubbles does not affect the effect of the present invention.

[0015] Regarding the configuration of the flexible cylindrical inclinometer (claims 2 and 5) In the U-shaped cylinder inclination angle meter according to claim 2, the material of the U-shaped cylinder container member 1 is flexible. As shown in FIG. 5 according to claim 5, the bottom surface of the cylindrical container member 1 of the cylindrical inclination angle meter does not have an R surface and is composed only of a flat surface. If the cylindrical container member 1 is made of a non-flexible material, it can only measure whether it is a horizontal surface or not. However, if the cylindrical container member 1 is made of a flexible material, as shown in FIG. 6, the cylindrical container member 1 can be bent to create an R surface on the bottom surface, and the inclination angle can be measured. The embodiment according to FIG. 6 is an example in which the cylindrical container member 1 is bent into a shape that can measure from +90 degrees to -90 degrees, and the inclination angle scale 5 displayed on the cylindrical member 1 is from +90 degrees to -90 degrees. However, if there are many occasions to measure from +30 degrees to -30 degrees, for example, the fixing position of the inclination angle meter to the object to be measured can be adjusted to the degree of bending to measure from +30 degrees to -30 degrees, and the inclination angle scale 5 can be set to +30 degrees to -30 degrees. In addition, a plurality of the inclination angle scales 5 may be displayed on the cylindrical member 1, and the scales may not necessarily have numbers written on them. The material of the cylindrical container member 1 is preferably a highly transparent and flexible material such as polyurethane, but is not limited to this.

[0016] How to connect to the device under test As an example of a method for connecting the inclinometer and the object to be measured according to the present invention, there is a method in which the object to be measured is provided with a recess of a size and shape that can fit the cap 4 provided at both ends of the cylindrical container member 1, the cylindrical container member 1 is bent at a degree of bending suitable for measuring the inclinometer, and the recess is arranged so that the metal ball 3 is located at the 0 position of the scale when installed, and the cap 4 is fitted into the recess to connect. In addition, there are a method in which the object to be measured is provided with a U-shaped protrusion and the cap 4 is fixed so as to be hooked, a method in which the connection position of the cap 4 and the object to be measured is replaced with a material that can be connected by a magnet and fixed by magnetic force, a method in which a groove is cut on the outer surface of the cap 4 to make it a male screw, and the recess of the object to be measured is processed to become a female screw and fixed with a nut, and the connection method is not limited to the above. Furthermore, a recess of a size and shape that can fit the entire body of the inclinometer may be provided and connected, as in the recess 10 provided in the object to be measured shown in FIG. 8. The arrangement of the recesses for connection by the caps 4 at both ends of the inclination angle meter is such that as the distance between the recesses increases, the angle R of the R surface, which is the bottom surface of the cylindrical container member 1 of the inclination angle meter, becomes larger. Therefore, for example, after providing multiple recesses in the object to be measured and using it in a measurement range of +90 degrees to -90 degrees, if a more precise measurement of the inclination angle is required, it is possible to increase the distance between the connection positions of the caps 4 and perform measurements in a narrower measurement range of +30 degrees to -30 degrees.

[0017] Length of cylindrical parts Regarding the length of the cylindrical container member 1, if the purpose is to check the horizontal surface, even if it is short as shown in Figures 7 and 8, it can fully function. For example, as shown in Figures 7 and 8, if the cylindrical container member 1 is bent so that the bottom surface is an R surface, or if the R surface exists from the beginning on the lower surface of the body of the cylindrical container member 1, the cylindrical container member 1 is placed on a horizontal surface with the R surface of the lower surface of the body as the bottom surface, the metal ball 3 is located at the deepest position, which is the center of the cylindrical member 1, and it is easy to measure whether it is horizontal or not. In order to make it easier to grasp the position of the metal ball 3, a center position indication line 9 that also serves as the inclination angle meter scale 5 may be provided on the upper surface of the cylindrical container member 1. Next, if the application is to measure an inclination angle, so long as the length is such that a semicircular shape can be formed when the cylindrical container member 1 is bent, inclination angles from +90 degrees to -90 degrees can be measured. However, if the application is to narrow the measurement range, the length does not necessarily need to be such that inclination angles from +90 degrees to -90 degrees can be measured, and any length appropriate for the application will do.

[0018] Regarding the configuration in which the viscous liquid is replaceable (claims 3 and 6) The cap 4 can be removed from the cylindrical container member 1 or provided with an openable lid, and the viscous liquid 2 in the cylindrical container member 1 can be replaced with a viscous liquid 2 having a different viscosity, thereby making it possible to adjust the viscosity of the viscous liquid 2 according to the application. For example, as described above, in order to obtain a vibration suppression effect in a place where strong vibrations occur, such as a chain saw, the viscous liquid 2 can be easily replaced with a viscosity of 10 (mm2 / s) when used in a place where there is almost no vibration. The configuration for replacing the viscous liquid 2, such as the cap 4, does not necessarily need to be provided at both ends of the cylindrical container member 1, and it is sufficient for the cylindrical container member 1 to have at least one removable member or openable lid. However, if a hard member used for connecting to the measured object also serves this function, the overall structure can be further simplified.

[0019] Commonalities and differences with patent applications by the same applicant Both the invention of the hemispherical concave inclinometer in Patent Application No. 2023-174357 and this invention are related to inclinometers, and share the common objective of "providing an inclinometer that can measure the inclinometer angle of an inclined surface, prevents the measured value from moving in accordance with vibration even under severe engine vibration, and has a simplified structure." On the other hand, the invention in Patent Application No. 2023-174357 aims to "measure the inclinometer angle of a compound inclined surface with high accuracy in one go" by making the recess in the inclinometer body hemispherical, whereas this invention aims to "measure the inclinometer angle of a compound inclined surface with high accuracy in one go, but uses a cylindrical container member to facilitate customization according to the purpose of use and increase versatility," which is different from the above. The technical feature of the present invention for enhancing the versatility is that the body of the cylindrical container member 1 under The fact that whether the surface is flat or rounded, the size of the angle R of the rounded surface, the length of the cylindrical container member 1, the connection positions of both ends of the incline angle meter, and the viscosity of the viscous liquid 2 can be selected according to the application is a technical feature not found in the hemispherical concave incline angle meter of Patent Application No. 2023-174357. [Explanation of symbols]

[0020] 01 U-shaped cylindrical container parts 02 Viscous liquid 03 Metal ball 04 Cap 05 Tilt angle scale 06 circle Cylindrical tilt angle meter body 07 Direction in which you want to measure the inclination angle 08 Actual tilt direction 09 Center position indicator line 10 Recessed portion provided on the object to be measured

Claims

1. An incline angle meter comprising a U-shaped cylindrical transparent or translucent container member to be attached to a chainsaw, the side of the body of the U-shaped cylindrical container member having an inclination angle scale, and the underside of the body member having either a flat surface or a rounded surface or both, the inside of the U-shaped cylindrical container member being filled with a viscous liquid, a metallic sphere being placed inside the U-shaped cylindrical container member, and both ends of the U-shaped cylindrical container member being sealed with caps, characterized in that the viscous liquid has a viscosity sufficient to suppress the sliding state in which the metallic sphere inside the U-shaped cylindrical container member continues to move due to vibration under continuously occurring intense vibration.

2. 2. The inclinometer according to claim 1, wherein the U-shaped cylindrical container member is flexible, and an uneven portion or a fixing device is provided on the object to be measured for the inclination angle, or the U-shaped cylindrical container member is provided with rigid holding members at both ends thereof that can be connected to the object to be measured, and the inclinometer is connected to the object to be measured through the uneven portion, fixing device, or rigid holding members, thereby making it possible to adjust the R angle of the flat surface or the R surface of the underside of the body of the U-shaped cylindrical container member.

3. 3. The inclinometer according to claim 2, further comprising a hard holding member that is detachable from the U-shaped cylindrical container member, or an openable and closable cap on a part of the U-shaped cylindrical container member or the hard holding member, and capable of being replaced with a viscous liquid having a different viscosity.

4. An incline angle meter comprising a cylindrical transparent or translucent container member to be attached to a chainsaw, the side of the body of the cylindrical container member having an inclination angle scale, the cylindrical container member being filled with a viscous liquid, a metallic sphere being placed inside the cylindrical container member, and both ends of the cylindrical container member being sealed with caps, characterized in that the viscous liquid has a viscosity sufficient to suppress the sliding state in which the metallic sphere inside the cylindrical container member continues to move due to vibration under continuous intense vibration.

5. 5. The inclinometer according to claim 4, wherein the cylindrical container member is flexible, and an uneven portion or a fixing device is provided on the object to be measured for the inclination angle, or both ends of the cylindrical container member are provided with rigid holding members connectable to the object to be measured, and by connecting the inclinometer to the object to be measured through the uneven portion, fixing device or rigid holding members, the lower surface of the body of the cylindrical container member can be bent and the shape of the R surface of the bent portion can be adjusted.

6. 6. The inclinometer according to claim 5, further comprising a hard holding member that is detachable from the cylindrical container member, or an openable and closable cap on a part of the cylindrical container member or the hard holding member, and capable of being replaced with a viscous liquid having a different viscosity.

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