Measure

Abstract

To provide a measure to easily measure a distance even in a place that cannot be reached by hand.SOLUTION: A measure 1 according to the present disclosure includes a measure main body 10 for supporting a first laser irradiation unit 20 and a second laser irradiation unit 30 so that at least one of the first and second laser irradiation units is movable relative to the other. While the axis A of a first laser 21 and the axis B of a second laser 31 remain parallel to each other, at least one of the first laser irradiation unit 20 and the second laser irradiation unit 30 is movable relative to the other. By movement of at least one of the first and second laser irradiation units 20, 30 relative to the other, the distance L between the lasers changes.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to measures. [Background technology]

[0002] BACKGROUND ART Conventionally, a tape measure is known for measuring distance (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2001-255142 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional tape measures require approaching the object to measure the distance, so when measuring distances in places that are difficult to reach, such as high ceilings, it is necessary to set up scaffolding so that the ceiling can be reached, making it difficult to measure.

[0005] In order to solve the above problems, the present disclosure aims to provide a measuring tape that can easily measure distances even in places that are difficult to reach. [Means for solving the problem]

[0006] The measuring tape according to the present disclosure includes a first laser irradiating unit capable of irradiating a first laser as laser pointer light, a second laser irradiating unit capable of irradiating a second laser as laser pointer light, a measuring tape body, and a measuring unit capable of measuring the inter-laser distance, which is the distance between the axis of the first laser and the axis of the second laser, wherein the measuring tape body supports the first laser irradiating unit and the second laser irradiating unit so that at least one of the first laser irradiating unit and the second laser irradiating unit is movable relative to the other, and at least one of the first laser irradiating unit and the second laser irradiating unit is movable relative to the other while maintaining the axis of the first laser and the axis of the second laser parallel to each other, and the inter-laser distance changes as at least one of the first laser irradiating unit and the second laser irradiating unit moves relative to the other. [Effects of the Invention]

[0007] The measuring tape of the present disclosure makes it easy to measure distances in places that are difficult to reach. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic diagram showing a measuring tape according to a first embodiment. [Figure 2] FIG. 2 is a schematic diagram showing the measuring tape of FIG. 1 in use. [Figure 3] 1. FIG. 4 is a schematic view showing another state of use of the measuring tape of FIG. [Figure 4] FIG. 10 is a schematic diagram showing a measuring tape according to a second embodiment. [Figure 5] FIG. 10 is a schematic diagram showing the function of a measurer according to a third embodiment. [Figure 6] FIG. 10 is a schematic diagram showing the function of a measurer according to a fourth embodiment. [Figure 7] FIG. 10 is a schematic diagram showing the function of a measurer according to a fifth embodiment. [Figure 8] FIG. 20 is a schematic diagram showing the function of a measurer according to a sixth embodiment. [Figure 9] 9 is a schematic diagram showing an example of how the measure in FIG. 8 is used. FIG. [Figure 10]FIG. 2 is a configuration diagram showing a first example of a processing circuit that realizes the functions of the measurement unit, tilt detection mechanism, and calculation unit of the measuring tape according to the first to sixth embodiments. [Figure 11] FIG. 10 is a configuration diagram showing a second example of a processing circuit that realizes the functions of the measurement unit, tilt detection mechanism, and calculation unit of the measuring device according to the first to sixth embodiments. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Embodiment 1 1 is a schematic diagram showing a measuring tape 1 according to embodiment 1. The measuring tape 1 includes a measuring tape main body 10, a first laser irradiation unit 20, a second laser irradiation unit 30, a measuring unit 40, a display unit 50, a tilt detection mechanism 60, and a switch 90.

[0010] The measuring tape body 10 has two divided bodies, a first body 11 and a second body 12. The first body 11 and the second body 12 are each a long member. A space is formed in the first body 11 along the longitudinal direction. The second body 12 is inserted into the space formed in the first body 11.

[0011] The second body 12 is inserted into and supported in a nested manner in a space formed in the first body 11. When the second body 12 is inserted into the space formed in the first body 11, both side surfaces and the top surface of the second body 12 are covered by the first body 11.

[0012] A pair of protrusions 11b is formed along the longitudinal direction at an end portion along the longitudinal direction of the first body 11. A pair of recesses 12b is formed along the longitudinal direction at an end portion along the longitudinal direction of the second body 12. When the second body 12 is inserted into the space of the first body 11 in a nested manner, the corresponding protrusions 11b and recesses 12b engage with each other.

[0013] The second body 12 can be inserted into and pulled out from the first body 11 while the convex portions 11b and concave portions 12b engage with each other. That is, the second body 12 can advance and retreat along the longitudinal direction of the first body 11, and the measuring tape body 10 can be extended and retracted in the longitudinal direction.

[0014] When the second body 12 is supported inside the first body 11 , the longitudinal directions of the first body 11 and the second body 12 are the same as the longitudinal direction of the measure body 10 .

[0015] The first body 11 and the second body 12 can be in a stored state and an unfolded state by expanding and contracting in the longitudinal direction. The stored state is a state in which the second body 12 is inserted into the space of the first body 11, and the second body 12 and the first body 11 are most contracted in the longitudinal direction. The unfolded state is a state in which the second body 12 is pulled out from the space of the first body 11, and the second body 12 and the first body 11 are extended in the longitudinal direction.

[0016] The first laser irradiating unit 20 can irradiate a first laser 21 as a laser pointer light. The first laser irradiating unit 20 is supported by the first main body 11. An axis A of the first laser 21 is perpendicular to the longitudinal direction of the first main body 11, i.e., the longitudinal direction of the measuring tape main body 10.

[0017] When a laser pointer light is irradiated onto an object, a mark appears on the object where the light hits. A user of a device capable of irradiating a laser pointer light can use the mark to point to any part of an object located at a distance, for example.

[0018] The second laser irradiating unit 30 can irradiate a second laser 31 as a laser pointer light. The second laser irradiating unit 30 is supported by the second main body 12. An axis B of the second laser 31 is perpendicular to the longitudinal direction of the second main body 12, i.e., the longitudinal direction of the measuring tape main body 10.

[0019] The first laser irradiation unit 20 and the second laser irradiation unit 30 are each supported by the measuring tape main body 10 so that the axis A of the first laser 21 and the axis B of the second laser 31 are parallel to each other. When the distance between the axis A of the first laser 21 and the axis B of the second laser 31 is defined as the inter-laser distance L, a straight line along the inter-laser distance L and the longitudinal direction of the measuring tape main body 10 are parallel to each other.

[0020] The first laser irradiation unit 20 and the second laser irradiation unit 30 can be operated by a built-in battery (not shown). To irradiate laser from the first laser irradiation unit 20 and the second laser irradiation unit 30, a power switch (not shown) provided on each unit is turned on to irradiate the laser.

[0021] The measuring tape main body 10 is extendable and retractable while maintaining the axis A of the first laser 21 and the axis B of the second laser 31 parallel to each other. That is, the first laser irradiation unit 20 and the second laser irradiation unit 30 are supported by the measuring tape main body 10, and the measuring tape main body 10 supports the second laser irradiation unit 30 so that it can move relative to the first laser irradiation unit 20. The second laser irradiation unit 30 can move relative to the first laser irradiation unit 20 while maintaining the axis A of the first laser 21 and the axis B of the second laser 31 parallel to each other.

[0022] The distance between the first laser irradiation unit 20 and the second laser irradiation unit 30, i.e., the inter-laser distance L, changes due to the expansion and contraction of the measure body 10. That is, when the measure body 10 expands and contracts in the longitudinal direction, the second laser irradiation unit 30 moves relative to the first laser irradiation unit 20, and the inter-laser distance L changes.

[0023] The measuring unit 40 is installed inside the first body 11. The measuring unit 40 can measure the inter-laser distance L based on the position of the first laser irradiation unit 20 relative to the first body 11, the position of the second laser irradiation unit 30 relative to the second body 12, and the relative positions of the first body 11 and the second body 12.

[0024] For example, the measuring unit 40 knows in advance the distance from the end of the first body 11 on the second body 12 side to the longitudinal axis A of the first laser 21. Furthermore, the measuring unit 40 knows the distance from the end of the first body 11 on the second body 12 side to the longitudinal axis B of the second laser 31 when the tape measure body 10 is in the most contracted state.

[0025] The measuring unit 40 can calculate the moving distance of the second body 12 relative to the first body 11 when the measuring body 10 is extended from the most contracted state. This allows the measuring unit 40 to measure the inter-laser distance L.

[0026] The movement distance of the second body 12 relative to the first body 11, i.e., the distance between the first body 11 and the second body 12 that changes due to expansion and contraction, can be electrically detected and measured based on a known configuration. For example, a rotation mechanism that rotates due to the relative movement between the first body 11 and the second body 12 may be installed in the first body 11, and the distance between the first body 11 and the second body 12 that changes due to expansion and contraction may be measured using a mechanism that measures the number of rotations of the rotation mechanism with an encoder and calculates the distance.

[0027] A contact signal from the switch 90 is input to the measuring unit 40, and the measuring unit 40 measures the inter-laser distance L based on the input contact signal. The inter-laser distance L measured by the measuring unit 40 is output to the display unit 50. The switch 90 will be described later.

[0028] The display unit 50 is exposed on the surface of the first body 11 and is supported by the first body 11. The display unit 50 displays the inter-laser distance L input from the measurement unit 40. The display unit 50 may also display other information. For example, the remaining capacity of one or more of the batteries used in the first laser irradiation unit 20, the second laser irradiation unit 30, the measurement unit 40, and the display unit 50 may be displayed.

[0029] The tilt detection mechanism 60 is supported by the first main body 11. In the first embodiment, the tilt detection mechanism 60 is a spirit level. The spirit level is supported by the first main body 11 so as to be able to detect the horizontality in the longitudinal direction of the measuring tape body 10. However, the present invention is not limited to this, and for example, a spirit level may be further disposed in a direction perpendicular to the longitudinal direction of the measuring tape body 10.

[0030] The switch 90 is exposed on the surface of the first body 11 and is supported by the first body 11. An operator can operate the switch 90. When the switch 90 is pressed, a contact signal of the switch 90 is input to the measuring unit 40. When the contact signal of the switch 90 is turned ON, the measuring unit 40 measures the laser distance L.

[0031] Next, a method of using the measuring tape 1 in the present embodiment 1 will be described. Fig. 2 is a schematic diagram showing the measuring tape 1 of Fig. 1 in use. Fig. 2 shows the measuring tape 1 being used to measure the outer dimensions of a downlight 110. Fig. 2 shows only the configurations of the first laser irradiation unit 20 and the second laser irradiation unit 30 of the measuring tape 1, and omits the description of other configurations.

[0032] The downlight 110 is installed on a ceiling 100. A cylindrical space 100a is formed in the ceiling 100, into which the downlight 110 is inserted. The downlight 110 is installed by being fitted into the cylindrical space 100a. The downlight 110 is installed on the ceiling 100 so that the part that emits light is exposed downward from the ceiling 100. In this case, the maximum outer diameter of the exposed part of the downlight 110 is measured as the outer dimension of the downlight 110.

[0033] 2, the cylindrical space 100a is indicated by a dashed line, and the entire downlight 110 is indicated by a solid line. However, in reality, only the portion of the downlight 110 that is exposed downward from the ceiling 100 is visible.

[0034] The ceiling 100 of a commercial facility such as a shopping mall is high, and in order to measure the outer dimensions of the downlight 110 using a conventional tape measure, it is necessary to prepare scaffolding. By using the measuring tape 1 according to the first embodiment to measure the maximum outer diameter of the exposed part of the downlight 110 installed on the ceiling 100, it is not necessary to prepare scaffolding.

[0035] In order to measure the maximum outer diameter of the downlight 110, a worker moves under the downlight 110 and prepares a measuring tape 1. The worker operates power switches (not shown) provided on the first laser irradiation unit 20 and the second laser irradiation unit 30, respectively, to irradiate the first laser 21 and the second laser 31, respectively.

[0036] The worker aligns the respective indication marks of the first laser 21 and the second laser 31 with the outer diameter of the downlight 110. Specifically, the worker adjusts the degree of expansion and contraction of the measuring tape main body 10 so that the positions of the respective indication marks of the first laser 21 and the second laser 31 match the outer diameter of the downlight 110.

[0037] Furthermore, the worker keeps an eye on the tilt detection mechanism 60 and adjusts the position of the tape measure 1 so that it is horizontal.

[0038] When the indicator marks of the first laser 21 and the second laser 31 are aligned with the outer diameter of the downlight 110 and the tilt detection mechanism 60 indicates horizontal, the worker presses the switch 90. This causes the measurement unit 40 to measure the inter-laser distance L at that time. Furthermore, the measured inter-laser distance L is displayed on the display unit 50.

[0039] The worker can grasp the inter-laser distance L displayed on the display unit 50 as the maximum outer diameter of the downlight 110. The display on the display unit 50 disappears after a certain period of time has passed. That is, the inter-laser distance L at the time the switch 90 is pressed is displayed on the display unit 50 for a certain period of time.

[0040] When the measurement is completed, the operator stops the laser irradiation by operating the power switches (not shown) provided on the first laser irradiation unit 20 and the second laser irradiation unit 30. Then, the measuring tape main body 10 is retracted and stored.

[0041] The tape measure 1 of the first embodiment is capable of measuring long distances because the tape measure body 10 is extendable. Fig. 3 is a schematic diagram showing another state of use of the tape measure 1 of Fig. 1. Fig. 3 shows the tape measure 1 being used to measure the external dimensions of a fluorescent lamp 111.

[0042] The fluorescent lamp 111 is installed on the ceiling 100. A rectangular space 100b is formed in the ceiling 100, into which the fluorescent lamp 111 is inserted. The fluorescent lamp 111 is installed by being fitted into the rectangular space 100b. The fluorescent lamp 111 is installed on the ceiling 100 so that the portion that emits light is exposed downward from the ceiling 100.

[0043] 3, the rectangular space 100b is shown by a dashed line, and the fluorescent light 111 is shown entirely by a solid line. However, when the fluorescent light 111 is installed on the ceiling 100, the entire fluorescent light 111 cannot be seen from below the ceiling 100.

[0044] The worker can measure the outer dimensions of the fluorescent lamp 111 by adjusting the degree of expansion and contraction of the measuring tape main body 10. The method for measuring the outer dimensions of the fluorescent lamp 111 is the same as the method for measuring the outer diameter of the downlight 110, so a detailed explanation will be omitted.

[0045] The measuring tape 1 according to the first embodiment includes a first laser emitting unit 20 capable of emitting a first laser 21 as a laser pointer light and a second laser emitting unit 30 capable of emitting a second laser 31 as a laser pointer light. The measuring tape also includes a measuring tape main body 10 and a measuring unit 40 capable of measuring the inter-laser distance L, which is the distance between the axis A of the first laser 21 and the axis B of the second laser 31. The measuring tape main body 10 supports the first laser emitting unit 20 and the second laser emitting unit 30 so that at least one of the first laser emitting unit 20 and the second laser emitting unit 30 is movable relative to the other. At least one of the first laser emitting unit 20 and the second laser emitting unit 30 is movable relative to the other while the axis A of the first laser 21 and the axis B of the second laser 31 remain parallel to each other. The inter-laser distance L changes when at least one of the first laser emitting unit 20 and the second laser emitting unit 30 moves relative to the other. This allows the distance between the irradiated first laser 21 and second laser 31 to be measured. Therefore, if the first laser 21 and the second laser 31 are irradiated onto an out-of-reach place such as the ceiling 100, the distance to the out-of-reach place can be measured. Therefore, the distance to the out-of-reach place can be easily measured.

[0046] According to the measuring tape 1 of the first embodiment, the measuring tape main body 10 is extendable in the longitudinal direction, and as the measuring tape main body 10 extends or contracts in the longitudinal direction, at least one of the first laser irradiating unit 20 and the second laser irradiating unit 30 moves relative to the other, changing the inter-laser distance L. This makes it possible to measure any distance as the inter-laser distance L. This also makes it possible to obtain a measuring tape 1 that is highly portable by keeping it retracted when not in use.

[0047] The measuring device 1 according to the first embodiment further includes a display unit 50, which displays the inter-laser distance L. This allows the operator to recognize the inter-laser distance L by checking the display unit 50. This makes it easier for the operator to recognize the measured distance.

[0048] The measuring device 1 according to the first embodiment further includes a switch 90, and pressing the switch 90 causes the inter-laser distance L to be displayed on the display unit 50. This causes the inter-laser distance L at the time the switch 90 is pressed to be displayed on the display unit 50. This allows the operator to recognize the measured distance at an appropriate time. This makes it easier to recognize the measured distance.

[0049] The tape measure 1 in the first embodiment has two divided bodies, a first body 11 and a second body 12. However, this is not limited to this. For example, the tape measure 10 may be made up of three or more divided bodies, including the first body 11 and the second body 12. That is, each divided body may be nested within the other divided bodies, making the tape measure 10 extendable. This increases the degree of extendability of the tape measure 10. Therefore, the tape measure 10 can be folded down for easy portability and extended for long distance measurements. This results in a tape measure 1 with excellent portability.

[0050] Embodiment 2 4 is a schematic diagram showing a tape measure 1 according to embodiment 2. The tape measure 1 according to embodiment 2 differs from the tape measure 1 according to embodiment 1 in that the tape measure main body 10 is foldable and the second laser irradiation unit 30 is movably supported by the second main body 12.

[0051] The measuring tape main body 10 further includes a hinge 13. The hinge 13 foldably connects the divided main bodies, a first main body 11 and a second main body 12. The hinge 13 allows the first main body 11 and the second main body 12 to be in a stored state and an unfolded state.

[0052] The stored state is a state in which the first body 11 and the second body 12 are folded at the hinge 13, i.e., stacked on top of each other. The unfolded state is a state in which the longitudinal directions of the first body 11 and the second body 12 connected by the hinge 13 are unfolded so that they are aligned in the same line, i.e., they extend in the longitudinal direction.

[0053] When the first body 11 and the second body 12 are both in an expanded state, the measure body 10 becomes a single elongated member extending in the longitudinal direction.

[0054] A track 12c is formed on the surface of the second body 12 along the longitudinal direction of the second body 12. The second laser irradiation unit 30 is supported by the second body 12 so as to be movable along the track 12c. The second laser irradiation unit 30 is movable along the track 12c while maintaining the axis A of the first laser 21 and the axis B of the second laser 31 parallel to each other.

[0055] The second laser irradiation unit 30 can be stopped at any position on the track 12c. At this time, the second laser irradiation unit 30 on the track 12c can be stopped at any position on the track 12c due to friction generated between the track 12c and the second laser irradiation unit 30. Note that, regardless of the friction generated between the track 12c and the second laser irradiation unit 30, a well-known locking mechanism may be employed to stop the second laser irradiation unit 30 at any position on the track 12c and fix the position of the second laser irradiation unit 30.

[0056] That is, the inter-laser distance L changes depending on the position of the measure body 10 of the second laser irradiation unit 30. When the first body 11 and the second body 12 are both in an unfolded state and the second laser irradiation unit 30 moves along the longitudinal direction of the second body 12, the second laser irradiation unit 30 moves relative to the first laser irradiation unit 20, and the inter-laser distance L changes.

[0057] The measuring unit 40 can measure the inter-laser distance L based on the position of the first laser irradiating unit 20 supported by the first body 11 and the position of the second laser irradiating unit 30 relative to the second body 12.

[0058] For example, the measuring unit 40 knows in advance the distance from the end of the first body 11 on the second body 12 side to the axis A of the first laser 21 along the longitudinal direction. Furthermore, the measuring unit 40 can measure the distance from the end of the second body 12 on the first body 11 side to the axis B of the second laser 31 along the longitudinal direction. This allows the measuring unit 40 to measure the inter-laser distance L.

[0059] The distance from the end of the second body 12 on the first body 11 side to the axis B of the second laser 31 along the longitudinal direction can be electrically detected and measured based on a well-known configuration. For example, a rotation mechanism that rotates in accordance with the movement of the second laser irradiation unit 30 on the track 12c may be provided, and a mechanism for measuring the number of rotations of the rotation mechanism with an encoder to calculate the distance may be provided. With such a mechanism, the distance from the end of the second body 12 on the first body 11 side to the axis B of the second laser 31 along the longitudinal direction can be measured. The other configurations of the tape measure 1 in embodiment 2 are the same as those of the tape measure 1 in embodiment 1, and therefore description thereof will be omitted.

[0060] Next, a method of using the measuring tape 1 in the second embodiment will be described in the case of measuring the outer dimensions of the downlight 110 shown in FIG.

[0061] In order to measure the maximum outer diameter of the exposed part of the downlight 110 as the outer dimension of the downlight 110, the worker moves under the downlight 110 and prepares a measuring tape 1. The worker operates power switches (not shown) provided on the first laser irradiation unit 20 and the second laser irradiation unit 30, respectively, to irradiate the first laser 21 and the second laser 31, respectively.

[0062] The worker unfolds the first body 11 and the second body 12. Next, the worker aligns the indicator marks of the first laser 21 and the second laser 31 with the outer diameter of the downlight 110. Specifically, the worker moves and adjusts the position of the second laser irradiation unit 30 so that the positions of the indicator marks of the first laser 21 and the second laser 31 match the outer diameter of the downlight 110.

[0063] Furthermore, the worker looks closely at the tilt detection mechanism 60 and adjusts the position of the tape measure 1 so that it is horizontal.

[0064] When the indication marks of the first laser 21 and the second laser 31 are aligned with the outer diameter of the downlight 110 and the tilt detection mechanism 60 indicates horizontal, the worker presses the switch 90. This causes the measurement unit 40 to measure the inter-laser distance L at that time. Furthermore, the measured inter-laser distance L is displayed on the display unit 50. Other configurations of the method of using the tape measure 1 in the second embodiment are the same as those of the method of using the tape measure 1 in the first embodiment, and therefore description thereof will be omitted.

[0065] According to the measuring tape 1 of the second embodiment, the measuring tape main body 10 has a plurality of divided bodies, a first body 11 and a second body 12. Each of the divided bodies can be in a stored state in which they are stacked on top of each other, or in an expanded state in which they extend longitudinally. The second laser irradiator 30 is supported by the second body 12, one of the divided bodies, so as to be movable along the longitudinal direction of the second body 12. When each of the divided bodies is in the expanded state and moves along the longitudinal direction of the second body 12, the divided body on which the second laser irradiator 30 is supported, the second laser irradiator 30 moves relative to the first laser irradiator 20, changing the inter-laser distance L. This allows any distance to be measured as the inter-laser distance L. This allows the divided bodies to be stored when the measuring tape 1 is not in use, resulting in a highly portable measuring tape 1.

[0066] The tape measure 1 in the second embodiment has two divided bodies, a first body 11 and a second body 12. However, this is not limited to this. For example, the tape measure 10 may be made up of three or more divided bodies, including the first body 11 and the second body 12. That is, each divided body may be folded and stacked. This increases the unfolding rate of the tape measure 10. Therefore, the tape measure 10 can be folded to make it smaller for easy carrying, and can be unfolded to measure longer distances. This results in a tape measure 1 with excellent portability.

[0067] Furthermore, the tape measure 1 in the first and second embodiments is equipped with a tilt detection mechanism 60. However, this is not limited to this. For example, the tape measure 1 does not have to be equipped with a tilt detection mechanism 60. In that case, the worker can carefully hold the tape measure 1 so that it is as horizontal as possible. Alternatively, the tape measure 1 can be placed on the floor, which is a horizontal plane, and the distance to the target can be measured.

[0068] Furthermore, in the measuring devices 1 in the first and second embodiments, the inter-laser distance L is measured electrically by the measuring unit 40. However, this is not limited to this. For example, the measuring unit 40 may be a scale indicating the distance written on the measuring device main body 10. That is, the operator may know the inter-laser distance L by reading the scale indicating the distance written on the measuring device main body 10 that corresponds to the inter-laser distance L.

[0069] Embodiment 3 The measure 1 in the third embodiment differs from the measure 1 in the first embodiment in that it includes an inclination sensor as the inclination detection mechanism 60. Fig. 5 is a schematic diagram showing the function of the measure 1 in the third embodiment.

[0070] The measuring tape 1 is equipped with an inclination sensor as the inclination detection mechanism 60. The inclination sensor is a sensor that can detect the inclination of the inclination sensor itself relative to a horizontal plane as an angle. The inclination sensor can electrically detect the angle of inclination.

[0071] The tilt sensor serving as the tilt detection mechanism 60 can electrically measure the tilt angle θ, which is the angle between a horizontal plane and a straight line along the inter-laser distance L. Because the direction along the inter-laser distance L is parallel to the longitudinal direction of the tape measure body 10, the tilt angle θ is the angle between the horizontal plane and the longitudinal direction of the tape measure body 10.

[0072] The contact signal of the switch 90 is input to both the measurement unit 40 and the tilt detection mechanism 60. The contact signal of the switch 90 is input to the tilt detection mechanism 60, which detects the tilt angle θ based on the input contact signal. However, this is not limited to this. For example, the contact signal of the switch 90 may be input to the tilt detection mechanism 60 via the measurement unit 40. Furthermore, the measurement unit 40, to which the contact signal of the switch 90 has been input, may input a signal equivalent to the contact signal of the switch 90 to the tilt detection mechanism 60.

[0073] The tilt angle θ detected by the tilt detection mechanism 60 is output to the display unit 50, which displays the value of the tilt angle θ. The other configurations are the same as those of the measuring tape 1 of the first embodiment, and therefore, description thereof will be omitted.

[0074] Next, a description will be given of how to use the measuring tape 1 in the third embodiment. With the measuring tape 1 in the third embodiment, the worker can grasp the tilt angle θ detected by the tilt detection mechanism 60.

[0075] The worker adjusts the extension / contraction state of the tape measure body 10 so that the indicator marks of the first laser 21 and the second laser 31 are aligned with the location to be measured. When the indicator marks of the first laser 21 and the second laser 31 are aligned with the location to be measured, the worker presses the adjustment switch 90.

[0076] When switch 90 is pressed, a contact signal is input to measurement unit 40 and tilt detection mechanism 60, and the inter-laser distance L and tilt angle θ are measured. The measured inter-laser distance L and tilt angle θ are displayed on display unit 50. The operator can calculate the distance he or she wants to measure based on the displayed inter-laser distance L and tilt angle θ.

[0077] For example, when measuring the maximum outer diameter of a downlight 110 attached to a ceiling 100 parallel to a horizontal plane as shown in Figure 2, the display unit 50 displays the laser distance L as 45 (cm) and the inclination angle θ as 30 (°).

[0078] Based on these values, the worker can calculate the measured distance D as follows: Measurement distance D ≒ 45 (cm) ÷ cos 30° ≒52(cm)

[0079] Therefore, the outer diameter of the downlight 110 to be measured is approximately 52 cm. Here, the measurement distance D is the maximum outer dimension of the downlight 110 to be measured. The downlight 110 is installed on a ceiling 100 that is parallel to the horizontal plane. Therefore, the measurement distance D is the distance between the point indicated by the first laser 21 and the point indicated by the second laser 31 when viewed from the vertical direction.

[0080] The display on the display unit 50 disappears after a certain period of time has passed. Other configurations of the measure 1 in the third embodiment are the same as those of the measure 1 in the first embodiment, and therefore description thereof will be omitted.

[0081] The measuring tape 1 according to the third embodiment further includes an inclination detection mechanism 60 that can measure the inclination angle θ, which is the angle between the direction along the inter-laser distance L and the horizontal plane. This eliminates the need to hold the measuring tape 1 along the horizontal plane, improving work efficiency.

[0082] The measuring tape 1 according to the third embodiment further includes a display unit 50, which displays the inter-laser distance L and the tilt angle θ. This allows any distance to be calculated even when the measuring tape main body 10 is tilted in the longitudinal direction relative to the horizontal plane. This improves the efficiency of distance measurement.

[0083] According to the measuring tape 1 of the third embodiment, the measuring tape further includes a switch 90. When the switch 90 is pressed, the inter-laser distance L and the inclination angle θ are displayed on the display unit 50. As a result, the inter-laser distance L and the inclination angle θ at the time the switch 90 is pressed are displayed on the display unit 50. This allows the operator to recognize the measured inter-laser distance L and the inclination angle θ at an appropriate timing. This makes it easier to recognize the measured inter-laser distance L and the inclination angle θ.

[0084] Embodiment 4 The measure 1 in the fourth embodiment differs from the measure 1 in the third embodiment in that it includes a calculation unit 70. Fig. 6 is a schematic diagram showing the function of the measure 1 in the fourth embodiment.

[0085] The measuring device 1 further includes a calculation unit 70. The calculation unit 70 receives the inter-laser distance L from the measurement unit 40 and the tilt angle θ from the tilt detection mechanism 60. The calculation unit 70 calculates the measurement distance D based on the inter-laser distance L and the tilt angle θ. The calculation unit 70 can perform the following calculations that were performed by the operator in the third embodiment. Measurement distance D ≒ 45 (cm) / cos 30° ≒52(cm)

[0086] The calculation unit 70 outputs the calculated measured distance D to the display unit 50, and the display unit 50 displays the input measured distance D.

[0087] Other configurations of the measure 1 in the fourth embodiment are the same as those of the measure 1 in the third embodiment, and therefore description thereof will be omitted.

[0088] The measuring tape 1 according to the fourth embodiment further includes a calculation unit 70, which calculates the measurement distance D based on the inter-laser distance L and the tilt angle θ. The measurement distance D is the distance between the point indicated by the first laser 21 and the point indicated by the second laser 31 when viewed from the vertical direction. This allows the measuring tape 1 to calculate the measurement distance D even if the measuring tape 1 is not held along a horizontal plane. This makes it easier to measure the measurement distance D.

[0089] The measuring device 1 according to the fourth embodiment further includes a display unit 50, which displays the measured distance D. This allows the operator to recognize the measured distance D by checking the display unit 50. This makes it easier for the operator to recognize the measured distance.

[0090] The measuring tape 1 according to the fourth embodiment further includes a switch 90, and when the switch 90 is pressed, the display unit 50 displays the measured distance D. This displays the measured distance D at the time the switch 90 is pressed. This allows the operator to recognize the measured distance D at an appropriate timing. This makes it easier to recognize the measured distance D.

[0091] Embodiment 5. The measure 1 in the fifth embodiment differs from the measure 1 in the fourth embodiment in that it further includes a storage unit 80. Fig. 7 is a schematic diagram showing the functions of the measure 1 in the fifth embodiment.

[0092] The measuring tape 1 further includes a storage unit 80. The storage unit 80 is supported inside the first main body 11. The storage unit 80 can be connected to an external information terminal 120 via a wire or wirelessly so as to be able to communicate information.

[0093] The storage unit 80 stores device information 81 such as the model, shape, and size of a plurality of devices. The device information 81 is input and stored by an information terminal (not shown) connected to the storage unit 80. The plurality of devices may be, for example, downlights 110, fluorescent lamps 111, or other devices.

[0094] The storage unit 80 is connected to the calculation unit 70 so as to be able to communicate information with the calculation unit 70. The calculation unit 70 can search and extract device information 81 stored in the storage unit 80.

[0095] Next, a method of using the measuring tape 1 in the fifth embodiment will be described. In the measuring tape 1 in the fifth embodiment, the calculation unit 70 can determine the model of the lighting device being measured based on the measurement distance D calculated by the calculation unit 70.

[0096] The calculation unit 70 searches for and extracts information about devices having external dimensions that match the calculated measured distance D from the device information 81. The calculation unit 70 outputs the model of the extracted device together with the measured distance D to the display unit 50.

[0097] The display unit 50 displays the model of the equipment being measured along with the measurement distance D. This allows the worker to understand the model of the equipment currently installed on the ceiling 100 in addition to the external dimensions of the equipment.

[0098] On the other hand, if the calculation unit 70 is unable to extract information about a device having external dimensions that match the measured distance D calculated by the calculation unit 70, the calculation unit 70 outputs a signal indicating this to the display unit 50. In this case, for example, the device information 81 does not contain information about a device having external dimensions that match the measured distance D calculated by the calculation unit 70.

[0099] Display unit 50 displays the measured distance D together with the text "NG," indicating that information on a device having external dimensions matching measured distance D could not be extracted. This allows the worker to understand the external dimensions of the device currently installed on ceiling 100 and also to know that the model of that device has not been stored in memory unit 80 in advance.

[0100] Other configurations of the measure 1 in the fifth embodiment are the same as other configurations of the measure 1 in the fourth embodiment, and therefore description thereof will be omitted.

[0101] The measuring device 1 according to the fifth embodiment further includes a memory unit 80 that can store at least the model and external dimensions of a plurality of devices that have been input in advance. The calculation unit 70 then extracts devices having external dimensions equivalent to the measurement distance D from the plurality of devices stored in the memory unit 80 and displays at least the model of the extracted devices on the display unit 50. This allows the worker to recognize the model of devices installed in hard-to-reach locations. This allows for more detailed information about devices, such as downlights 110 already installed on the ceiling 100, to be obtained. This makes it easier to perform maintenance and replacement of devices.

[0102] According to the measuring tape 1 of the fifth embodiment, if the calculation unit 70 cannot extract a device having external dimensions corresponding to the measurement distance D from among the multiple devices stored in the storage unit 80, the calculation unit 70 displays a message to that effect on the display unit 50. This indicates that a device such as a downlight 110 already installed on the ceiling 100 or the like is likely to be an exceptional device that is not normally handled, such as a device made overseas. This makes it possible to prepare for a detailed investigation of the exceptional device, and facilitates maintenance and replacement work for the device.

[0103] Embodiment 6 The tape measure 1 in the sixth embodiment differs from the tape measure 1 in the fourth embodiment in that the first laser emitting unit 20 has a first distance measuring function 23, and the second laser emitting unit 30 has a second distance measuring function 33, and each distance measuring function is used as a tilt detection mechanism 60. Fig. 8 is a schematic diagram showing the function of the tape measure 1 in the sixth embodiment.

[0104] The first laser irradiation unit 20 has a first distance measuring function 23 that can measure a first distance L1, which is the distance to the object irradiated with the first laser 21. The second laser irradiation unit 30 has a second distance measuring function 33 that can measure a second distance L2, which is the distance to the object irradiated with the second laser 31. That is, each of the first distance measuring function 23 and the second distance measuring function 33 is a laser distance measuring function, and each of the first laser 21 and the second laser 31 also functions as a laser distance measuring light.

[0105] The laser distance measurement function can be configured to measure distance based on the phase of the emitted light and the reflected light, for example. In this case, the laser light emitted by the emitting unit is reflected by the object and received by the light receiving unit. At this time, the distance to the object can be measured based on the phase of the emitted laser light and the reflected laser light.

[0106] A known configuration can be used as a specific configuration for realizing the laser distance measurement function. Furthermore, other known configurations may be used for the laser distance measurement function.

[0107] The first laser irradiation unit 20 and the second laser irradiation unit 30 are each installed on the measuring tape main body 10 so that when measuring distances to objects at the same distance, the first distance L1 and the second distance L2 are the same. However, this is not limited to this. For example, when measuring distances to objects at the same distance using the first laser 21 and the second laser 31, even if the first distance L1 and the second distance L2 do not measure the same distance, the first distance L1 and the second distance L2 may be arithmetically corrected based on the measured distances.

[0108] The calculation unit 70 is further input with the first distance L1 and the second distance L2. The calculation unit 70 can calculate the inclination angle θ between the measuring device main body 10 and the surface of the ceiling 100 based on the difference between the first distance L1 and the second distance L2. Therefore, in the sixth embodiment, the first distance measuring function 23 of the first laser emitting unit 20 and the second distance measuring function 33 of the second laser emitting unit 30 each serve as an inclination detection mechanism 60. A method for calculating the inclination angle θ will be explained later.

[0109] Next, a method of using the tape measure 1 in embodiment 6 will be described. The calculation unit 70 can calculate the tilt angle θ of the tape measure 1 relative to the object based on the difference between the distance to the object measured by the first laser irradiation unit 20 and the distance to the object measured by the second laser irradiation unit 30.

[0110] The worker adjusts the degree of extension / contraction of the measuring tape main body 10 so that the indication marks of the first laser 21 and the second laser 31 coincide with the maximum outer diameter of the downlight 110. At this time, the distances to the downlight 110 measured by the first laser irradiation unit 20 and the second laser irradiation unit 30 are output to the calculation unit 70.

[0111] The calculation unit 70 calculates the inclination angle θ from the difference between the input first distance L1 and second distance L2. Fig. 9 is a schematic diagram showing an example of the usage state of the measuring tape 1 of Fig. 8.

[0112] For example, assume that the inter-laser distance L is approximately 45 cm, the first distance L1 is approximately 4 m 72 cm, and the second distance L2 is approximately 4 m 46 cm. First, the inclination angle θ is calculated as follows. Inclination angle θ≒arctan((472-446) / 45) ≒30°

[0113] Next, the calculation unit 70 calculates the measurement distance D based on the calculated tilt angle θ and the inter-laser distance L. The measurement distance D can be calculated as follows. Measurement distance D ≒ 45 (cm) / cos 30° ≒52(cm)

[0114] The calculation unit 70 outputs the measured distance D to the display unit 50. The display unit 50 displays the value of 52 (cm) as the measured distance D.

[0115] The worker can grasp the outer diameter of the downlight 110, which is the measured distance D displayed on the display unit 50. The other configurations of the measuring tape 1 in the sixth embodiment are the same as those of the measuring tape 1 in the fourth embodiment, and therefore description thereof will be omitted.

[0116] The measuring tape 1 according to the sixth embodiment further includes a calculation unit 70. The first laser irradiation unit 20 has a distance measurement function capable of measuring a first distance L1, which is the distance to an object hit by the irradiated first laser 21. The second laser irradiation unit 30 has a distance measurement function capable of measuring a second distance L2, which is the distance to an object hit by the irradiated second laser 31. The calculation unit 70 calculates a measured distance D based on the inter-laser distance L, the first distance L1, and the second distance L2. The measured distance D is the distance between the point indicated by the first laser 21 and the point indicated by the second laser 31 when viewed vertically. This allows the inclination angle θ between the inter-laser distance L and the object surface whose distance is to be measured, based on the first distance L1 and the second distance L2. Therefore, the measured distance D can be calculated regardless of the inclination of the object surface to be measured relative to the horizontal plane. This makes it easier to measure the distance to places that are out of reach.

[0117] The configuration of the storage unit 80 of the measure 1 in the fifth embodiment may be added to the measure 1 in the sixth embodiment.

[0118] Furthermore, the measure body 10 of the measure 1 in embodiment 1 and embodiments 3 to 6 is extendable, and the measure body 10 of the measure 1 in embodiment 2 is foldable. However, this is not limited to this. The measure body 10 can be configured as appropriate from an extendable configuration, a foldable configuration, or an extendable and foldable configuration. This allows the measure body 10 to be made even more compact and portable for a measure 1 that can measure long distances. This improves the portability of the measure 1.

[0119] Furthermore, the measuring tape 1 in the first to sixth embodiments may have other functions. For example, it may have an illuminance meter or a color temperature meter. This allows the measuring tape 1 to check whether an electrical appliance needs to be replaced. Therefore, the task of replacing the electrical appliance can be carried out efficiently.

[0120] Furthermore, in the measure 1 in the first to sixth embodiments, pressing the switch 90 causes measurement, calculation, and the display of the measurement and calculation results. However, this is not limited to this. The switch 90 does not have to be provided. In this case, the measure 1 may always perform measurement, calculation, and display the measurement and calculation results.

[0121] The functions of the measurement unit 40, tilt detection mechanism 60, and calculation unit 70 of the measuring device 1 according to the first to sixth embodiments may be realized by a processing circuit. Fig. 10 is a configuration diagram showing a first example of a processing circuit that realizes the functions of the measurement unit 40, tilt detection mechanism 60, and calculation unit 70 of the measuring device 1 according to the first to sixth embodiments.

[0122] Furthermore, the processing circuit 300 may be, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a combination thereof.

[0123] 11 is a configuration diagram showing a second example of a processing circuit that realizes the functions of the measurement unit 40, tilt detection mechanism 60, and calculation unit 70 of the measuring device 1 according to any one of the first to sixth embodiments. The processing circuit 310 of the second example includes a processor 311 and a memory 312.

[0124] In the processing circuit 310, the functions of the measurement unit 40, tilt detection mechanism 60, and calculation unit 70 are realized by software, firmware, or a combination of software and firmware. The software and firmware are written as programs and stored in the memory 312. The processor 311 realizes the functions by reading and executing the programs recorded in the memory 312.

[0125] It can also be said that the programs stored in memory 312 cause the computer to execute the procedures or methods of the above-mentioned sections. Here, memory 312 refers to non-volatile or volatile semiconductor memory, such as RAM (Random Access Memory), ROM (Read Only Memory), flash memory, EPROM (Erasable Programmable Read Only Memory), and EEPROM (Electrically Erasable and Programmable Read Only Memory). Magnetic disks, flexible disks, optical disks, compact disks, minidisks, DVDs, and the like also fall under memory 312.

[0126] It should be noted that the functions of the measurement unit 40, tilt detection mechanism 60, and calculation unit 70 described above may be partially realized by dedicated hardware and partially realized by software or firmware.

[0127] In this way, the processing circuit can realize the functions of the measurement unit 40, tilt detection mechanism 60, and calculation unit 70 described above by using hardware, software, firmware, or a combination of these.

[0128] Various aspects of the present disclosure are summarized below as appendices.

[0129] (Appendix 1) a first laser irradiation unit capable of irradiating a first laser as laser pointer light; a second laser irradiation unit capable of irradiating a second laser as laser pointer light; The tape measure itself, a measuring unit capable of measuring an inter-laser distance, which is a distance between an axis line of the first laser and an axis line of the second laser; Equipped with the measuring device main body supports the first laser irradiation unit and the second laser irradiation unit so that at least one of the first laser irradiation unit and the second laser irradiation unit is movable relative to the other, at least one of the first laser irradiation unit and the second laser irradiation unit is movable relative to the other while maintaining a state in which an axis of the first laser and an axis of the second laser are parallel to each other; At least one of the first laser irradiation unit and the second laser irradiation unit moves relative to the other, thereby changing the inter-laser distance. major. (Appendix 2) The measuring tape body is extendable in the longitudinal direction, When the measuring tape main body expands and contracts in the longitudinal direction, at least one of the first laser irradiation unit and the second laser irradiation unit moves relative to the other, and the inter-laser distance changes. Measures as described in Appendix 1. (Appendix 3) The measure body has a plurality of divided bodies, Each of the plurality of divided bodies can be in a stored state in which they are stacked on top of each other, and in an unfolded state in which they extend in the longitudinal direction of each other, the second laser irradiation unit is supported by one of the plurality of divided bodies so as to be movable along a longitudinal direction of the one divided body, When each of the plurality of divided bodies is in the expanded state and moves along the longitudinal direction of one of the divided bodies on which the second laser irradiation unit is supported, the second laser irradiation unit moves relative to the first laser irradiation unit, and the inter-laser distance changes. Measures as described in Appendix 1. (Appendix 4) Further provided with a tilt detection mechanism, the tilt detection mechanism is capable of measuring a tilt angle, which is an angle formed between a direction along the inter-laser distance and a horizontal plane; 10. The measuring device of any one of Appendix 1 to Appendix 3. (Appendix 5) further comprising a calculation unit, the calculation unit calculates a measurement distance based on the inter-laser distance and the tilt angle; The measured distance is the distance between a point indicated by the first laser and a point indicated by the second laser when viewed from a vertical direction. Measures as described in Appendix 4. (Appendix 6) further comprising a calculation unit, the first laser irradiation unit has a distance measurement function capable of measuring a first distance, which is a distance to an object that is hit by the irradiated first laser, the second laser irradiation unit has a distance measuring function capable of measuring a second distance, which is a distance to an object that is hit by the irradiated second laser, the calculation unit calculates a measured distance based on the inter-laser distance, the first distance, and the second distance; The measured distance is the distance between a point indicated by the first laser and a point indicated by the second laser when viewed from a vertical direction. 10. The measuring device of any one of Appendix 1 to Appendix 3. (Appendix 7) Further comprising a display unit, The display unit displays the inter-laser distance. 10. The measuring device of any one of Appendix 1 to Appendix 3. (Appendix 8) Further comprising a switch, When the switch is pressed, the inter-laser distance is displayed on the display unit. Measures as described in Appendix 7. (Appendix 9) Further comprising a display unit, The display unit displays the inter-laser distance and the inclination angle. Measures as described in Appendix 4. (Appendix 10) Further comprising a switch, When the switch is pressed, the inter-laser distance and the inclination angle are displayed on the display unit. Measures as described in Appendix 9. (Appendix 11) Further comprising a display unit, The display unit displays the measured distance. Measures listed in Appendix 5 or Appendix 6. (Appendix 12) Further comprising a switch, When the switch is pressed, the calculation unit calculates the measured distance. Measures as described in Appendix 11. (Appendix 13) further comprising a storage unit capable of storing at least the models and external dimensions of a plurality of devices input in advance; the calculation unit extracts the device having the outer dimension corresponding to the measured distance from the plurality of devices stored in the storage unit, and displays at least the model of the extracted device on the display unit. Measures listed in Appendix 11 or Appendix 12. (Appendix 14) When the calculation unit cannot extract the device having the external dimensions corresponding to the measured distance from the plurality of devices stored in the storage unit, the calculation unit displays on the display unit a message that the device having the external dimensions corresponding to the measured distance cannot be extracted from the plurality of devices stored in the storage unit. Measures as described in Appendix 13. [Explanation of symbols]

[0130] 1 measuring tape, 10 measuring tape main body, 11 first main body, 11b convex portion, 12 second main body, 12b concave portion, 12c track, 13 hinge, 20 first laser irradiation unit, 21 first laser, 23 first distance measurement function, 30 second laser irradiation unit, 31 second laser, 33 second distance measurement function, 40 measurement unit, 50 display unit, 60 tilt detection mechanism, 70 calculation unit, 80 memory unit, 81 device information, 90 switch, 100 ceiling, 100a cylindrical space, 100b rectangular space, 110 downlight, 111 fluorescent lamp, 120 information terminal, 300 processing circuit, 310 processing circuit, 311 processor, 312 memory, A axis, B axis, D measurement distance, L distance between lasers, L1 first distance, L2 second distance, θ tilt angle.

Claims

1. a first laser irradiation unit capable of irradiating a first laser as laser pointer light; a second laser irradiation unit capable of irradiating a second laser as laser pointer light; The tape measure itself, a measuring unit capable of measuring an inter-laser distance, which is a distance between an axis line of the first laser and an axis line of the second laser; Equipped with the measuring device main body supports the first laser irradiation unit and the second laser irradiation unit so that at least one of the first laser irradiation unit and the second laser irradiation unit is movable relative to the other, at least one of the first laser irradiation unit and the second laser irradiation unit is movable relative to the other while maintaining a state in which an axis of the first laser and an axis of the second laser are parallel to each other, At least one of the first laser irradiation unit and the second laser irradiation unit moves relative to the other, thereby changing the inter-laser distance. major.

2. The measuring tape body is extendable in the longitudinal direction, When the measuring tape main body expands and contracts in the longitudinal direction, at least one of the first laser irradiation unit and the second laser irradiation unit moves relative to the other, and the inter-laser distance changes. The measuring tape of claim 1 .

3. The measure body has a plurality of divided bodies, Each of the plurality of divided bodies can be in a stored state in which they are stacked on top of each other, and in an unfolded state in which they extend in the longitudinal direction of each other, the second laser irradiation unit is supported by one of the plurality of divided bodies so as to be movable along a longitudinal direction of the one divided body, When each of the plurality of divided bodies is in the expanded state and moves along the longitudinal direction of one of the divided bodies on which the second laser irradiation unit is supported, the second laser irradiation unit moves relative to the first laser irradiation unit, and the inter-laser distance changes. The measuring tape of claim 1 .

4. Further provided with a tilt detection mechanism, the tilt detection mechanism is capable of measuring a tilt angle, which is an angle formed between a direction along the inter-laser distance and a horizontal plane; The measuring tape according to any one of claims 1 to 3.

5. further comprising a calculation unit, the calculation unit calculates a measurement distance based on the inter-laser distance and the tilt angle; The measured distance is the distance between a point indicated by the first laser and a point indicated by the second laser when viewed from a vertical direction.

5. The measuring tape of claim 4.

6. further comprising a calculation unit, the first laser irradiation unit has a distance measurement function capable of measuring a first distance, which is a distance to an object that is hit by the irradiated first laser, the second laser irradiation unit has a distance measuring function capable of measuring a second distance, which is a distance to an object that is hit by the irradiated second laser, the calculation unit calculates a measured distance based on the inter-laser distance, the first distance, and the second distance; The measured distance is the distance between a point indicated by the first laser and a point indicated by the second laser when viewed from a vertical direction. The measuring tape according to any one of claims 1 to 3.

7. Further comprising a display unit, The display unit displays the inter-laser distance. The measuring tape according to any one of claims 1 to 3.

8. Further comprising a switch, When the switch is pressed, the inter-laser distance is displayed on the display unit.

8. The measuring tape of claim 7.

9. Further comprising a display unit, The display unit displays the inter-laser distance and the inclination angle.

5. The measuring tape of claim 4.

10. Further comprising a switch, When the switch is pressed, the inter-laser distance and the inclination angle are displayed on the display unit.

10. The measuring tape of claim 9.

11. Further comprising a display unit, The display unit displays the measured distance.

6. The measuring tape of claim 5.

12. Further comprising a switch, When the switch is pressed, the calculation unit calculates the measured distance. The measuring tape of claim 11.

13. further comprising a storage unit capable of storing at least the models and external dimensions of a plurality of devices input in advance; the calculation unit extracts the device having the outer dimension corresponding to the measured distance from the plurality of devices stored in the storage unit, and displays at least the model of the extracted device on the display unit. The measuring tape of claim 11.

14. When the calculation unit cannot extract the device having the external dimensions corresponding to the measured distance from the plurality of devices stored in the storage unit, the calculation unit displays on the display unit a message that the device having the external dimensions corresponding to the measured distance cannot be extracted from the plurality of devices stored in the storage unit.

14. The measuring tape of claim 13.

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