JP2019174213A - Level gauge with laser pointer - Google Patents

Abstract

To provide a levelling instrument with laser pointer that does not emit a laser beam other than in use.SOLUTION: A levelling instrument with laser pointer 1 comprises: a body 2 having a reference plane 5 on a bottom face 4; a levelness detection unit 14 provided on the body 2; a laser beam irradiation unit 33 provided on the body 2 and emitting a laser beam; and a switch 61 turning on/off the irradiation of the laser beam. The switch 61 turns on the irradiation of the laser beam in a state of being in contact with a target surface of the reference plane 5, and turns off the irradiation of the laser beam in a state of being in non-contact with the target surface of the reference plane 5. In addition, the switch 61 includes a contact operation member 53 detecting a contact with the target surface 10, therefore, a laser beam is emitted when in use the reference plane 5 of the body 2 comes into contact with the target surface 10 while the irradiation of a laser beam is stopped when the target surface 10 is separated from the body 2. Thus, no laser beam is emitted unintentionally.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a leveler with a laser pointer.

  Conventionally, a leveler with a laser pointer that is equipped with a function to irradiate the leveler with laser light and indicates the horizontal position is known, and this allows a horizontal position in a distant direction parallel to the surface where the leveler is installed. It becomes possible to instruct.

  The leveling device includes a laser oscillator and a circular bubble level in a plane perpendicular to the laser emission direction. The laser oscillator includes a slide-type switch for turning on and off the laser beam. A laser-equipped leveler (for example, Patent Document 1), a laser beam portable level machine (for example, Patent Document 2) that emits light when a switch provided on the side of the case body is turned on, a switch on a battery box, This switch has a level (for example, Patent Document 3) used for controlling whether or not to project a light beam, and a horizontal measuring unit that measures the horizontal state at the center of the upper surface, and the end surface on one end side is irradiated with a laser beam. There is a laser level (for example, Patent Document 4) provided with a power switch for turning on and off.

Utility Model Registration No. 3049037 Japanese Patent Laid-Open No. 9-5079 Utility Model Registration No. 3048519 JP 2003-148957 A

  In any of the above prior art level devices, when the switch is turned on, the laser is irradiated, and the switch is turned off. For this reason, even when the switch is turned on, the laser is continuously irradiated even when the switch is lifted up. Therefore, there is a possibility that the laser light may hit a person unintentionally, and there is a problem that handling is required.

  The problem to be solved is to provide a level with a laser pointer that is not irradiated with laser light except during use.

  The invention of claim 1 includes a main body having a reference portion on a bottom surface, a leveling degree recognition portion provided on the main body, a laser light irradiation portion provided on the main body for irradiating laser light, and irradiation of the laser light. In a leveler with a laser pointer having a switch for turning on and off, the switch turns on irradiation of the laser light in a contact state with the target part of the reference part, and the target part of the reference part The laser light irradiation is turned off in a non-contact state.

  According to a second aspect of the present invention, the switch includes a detecting unit that detects that the reference portion is in contact with the target portion.

  The invention according to claim 3 is characterized in that the detection means includes a contact operation member provided in the main body and contacting the target portion.

  According to a fourth aspect of the present invention, the abutting operation member is provided so as to protrude outward from the reference portion, and is configured to sunk in a state where the reference portion is placed on the target portion. Features.

  The invention according to claim 5 is characterized in that an insertion hole through which the contact operation member is inserted is provided in the bottom surface, and the contact operation member is formed narrower from the upper side toward the bottom surface side.

  The invention of claim 6 is characterized in that an insertion hole for inserting the abutting operation member is provided on the bottom surface, and the insertion hole is formed wider from the upper side toward the bottom surface side.

  The invention of claim 7 is characterized in that an insertion hole for inserting the contact operation member is provided in the bottom surface, and the bottom surface side of the insertion hole is formed narrower from the upper side to the bottom surface side.

  The invention according to claim 8 provides the reference portion on both sides in the width direction of the bottom surface of the main body, and provides a reference portion side recess in the length direction of the reference portion between the reference portions on both sides. The contact operation member is disposed on the bottom surface provided with the side recess, and a recess corresponding to the reference portion side recess is provided in the center of the tip of the contact operation member.

  According to the configuration of the first aspect, when the reference portion of the main body is brought into contact with the target portion during use, the laser light is irradiated, and when the main body is separated from the target portion, the laser light irradiation is stopped, so the laser light is inadvertent. Is no longer irradiated.

  According to the configuration of the second aspect, the detection unit can detect the contact state and the non-contact state, and can turn on / off the laser light.

  According to the configuration of the third aspect, when the contact operation member contacts the target portion, the contact state and the non-contact state can be detected and the laser light can be turned on / off.

  According to the configuration of the fourth aspect, when the main body is placed on the object, the contact operation member sinks to detect the contact state, and when the main body is lifted, the tip of the contact operation member comes out and the non-contact state is detected. Can be detected.

  According to the fifth aspect of the present invention, the contact operation member is formed wider from the upper side toward the bottom surface side, so that it is difficult for foreign matters such as sand to enter the insertion hole.

  According to the structure of Claim 6, it becomes difficult for foreign materials, such as sand, to enter an insertion hole.

  According to the structure of Claim 7, foreign materials, such as sand, become difficult to enter into an insertion hole further.

  According to the structure of Claim 8, it can be stably used for object parts, such as circular arc shape.

It is a side view which shows Example 1 of this invention. It is a bottom view same as the above. It is a side view of the front side of the state which removed the case lid same as the above. It is a front view of the state mounted in the reference | standard part same as the above. It is a front view of the state lifted from the reference | standard part same as the above. It is a perspective view same as the above. It is a disassembled perspective view of a contact operation member and an attachment frame body same as the above. FIG. 4 is an enlarged cross-sectional view in the front-rear direction around the contact operation member. It is an enlarged front view of the left-right direction around a contact operation member same as the above. It is a partially notched side view of the principal part showing Example 2 of the present invention. It is a side view which shows Example 3 of this invention.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all of the configurations described below are not necessarily essential requirements of the present invention.

  A first embodiment of the present invention will be described with reference to FIGS. The level device 1 has a long and plate-shaped main body 2. The main body 2 has a left and right thickness direction, a top and bottom width direction, and is formed to be long in the front-rear direction. The main body 2 has a top surface 3 and a bottom surface 4. And left and right side surfaces 6 and 6 on both sides in the thickness direction. The main body 2 includes a rectangular tube-shaped main body central portion 7 made of a metal such as aluminum or an aluminum alloy, and a front member 8 and a rear surface member 9 which are integrally provided by covering the front and rear of the main body central portion 7. The front member 8 and the rear member 9 are made of synthetic resin or the like.

  A transparent cover 11 having a U-shaped cross-section with a lower opening is provided at the center of the upper surface 3 of the main body 2 in the front-rear direction. The transparent cover 11 has an upper surface portion 11A and left and right side portions 11B and 11B. In the main body 2 located in the cover 11, there is provided a levelness confirmation unit 14 that recognizes the levelness by the movement of the bubbles 13 enclosed in the liquid of the transparent bubble tube 12. The bubble tubes 12 of the levelness confirmation unit 14 are arranged in the front-rear direction, and the levelness recognition unit 14 can identify the levelness of the reference surface 5.

  Further, the reference surfaces 5 and 5 are provided on the left and right sides of the bottom surface 4 of the main body 2, and a reference portion side recess 17 is provided in the center of the bottom surface 4 in the width direction between the reference surfaces 5 and 5. The side recess 17 has left and right oblique sides 18 and 18 having an obtuse angle, and is formed in the entire length of the bottom surface 4.

  Therefore, when the target surface 10 that is the target portion is a flat surface, the left and right reference surfaces 5 and 5 are in contact with the target surface 10 in a surface contact state, and when the target surface 10A such as the outer peripheral surface of the cylinder is arcuate, The reference surfaces 5 and 5 and both corners 19 and 19 of both oblique sides 18 and 18 are in contact with the target surface 10A.

  On the rear side, which is one of the front and rear sides of the central portion 7 of the main body, a horizontality confirmation unit 14A having a vertical bubble tube 12 is built in, and the horizontality when the main body 2 is oriented vertically by the horizontality confirmation unit 14A. The left and right side surfaces 6 and 6 are provided with circular window portions 15 and 15 corresponding to the horizontal direction recognition portion 14A in the vertical direction, and these window portions 15 and 15 have a transparent plate member 15A. , 15A are provided.

  The front surface 21 of the front member 8 is provided with an opening 23 of a battery case 22 at the top, and a case lid 24 is detachably provided in the opening 23. The battery case 22 has a cylindrical shape, is provided integrally with the front member 8, and is built in the main body 2.

  The opening 23 is provided with a female screw portion 23M, and the case lid 24 has a male screw portion 25 screwed into the female screw portion 23M and a diameter provided at the tip of the male screw portion 25. A large knob cover part 26 is integrally formed, and an uneven part 27 serving as an anti-slip part is formed on the outer periphery of the knob cover part 26.

  The male screw portion 25 can be screwed into the female screw portion 23 </ b> M and the opening portion 23 can be closed with the lid portion 26 while the ring-shaped packing material 28 is externally mounted on the male screw portion 25.

  A main power switch 31 is provided on the front surface 21 of the front member 8 at the center in the height direction. The main power switch 31 is a slide type. When the main power switch 31 is slid in one of the left and right directions, the power is turned on. The power is switched off. The power source is a battery (not shown) in the battery case 22.

  On the front surface 21 of the front member 8, a laser light path 32 through which the laser light R passes is opened at the lower part, and a laser light irradiation part 33 is built in the main body 2 behind this. The laser beam irradiation unit 33 irradiates the laser beam R with the battery as a power source.

  Further, the front surface 21 of the front member 8 is provided with an upwardly inclined upper step portion 36 between the opening 23 and the main power switch 31, and upward between the main power switch 31 and the laser beam path 32. An oblique lower step portion 37 is provided, and the upper and lower step portions 36 and 37 are configured such that the lower portion of the front surface 21 projects forward from the upper portion. As a result, the tip 31S of the main power switch 31 is located on or inside the imaginary line connecting the front surface 21 at the position of the opening 23 and the outer surface of the knob cover 26 in the attached state, and the main power switch 31 is inadvertently used during use. Contact with the power switch 31 can be prevented. The imaginary line forms a substantially vertical direction.

  The rear member 9 is provided with a through hole 41 penetrating left and right at the center in the vertical direction. Accordingly, one end of the string-like body 42 can be connected to the through hole 41, and the other end of the string-like body 42 can be connected to a user's belt (not shown) or the like, and provided on the vertical wall. The through hole 41 can be hooked on a hanging tool such as a nail in the horizontal direction and the level 1 can be stored in a suspended state.

  A U-shaped notch 51 is provided in the front-rear direction center of the bottom surface 4 of the main body 2, and a synthetic resin mounting frame 52 is attached to the notch 51. A contact operation member 53 made of synthetic resin is disposed on the main body 2 by the body 52.

  The mounting frame 52 has a frame bottom surface 55, left and right side surfaces 56, 56, and front and rear side surfaces 57, 57. The frame bottom surface 55 includes the left and right reference surfaces 5. , 5 and left and right frame reference surfaces 5A, 5A, and a recess 17A having the same shape as the reference portion side recess 17 is provided. Further, in a state where the attachment frame body 52 is attached to the notch 51, the notch 51 is closed by the frame bottom surface 55 and the left and right side surfaces 56, 56, and further, the reference surface 5 and the frame The body reference surface 5A is continuous and the reference portion side concave portion 17 and the concave portion 17A are continuous. In other words, the frame body reference surface 5 </ b> A constitutes a part of the reference surface 5 provided in the main body 2, and the concave portion 17 </ b> A constitutes a part of the reference portion side concave portion 17 provided in the main body 2.

  On the condition that the main power switch 31 is on, the irradiation of the laser beam R is turned on while the reference surface 5 is in contact with the target surface 10 and the reference surface 5 is not applied to the target surface 10. A switch 61 that turns off the irradiation of the laser beam R in the contact state is provided, and the switch 61 includes the contact operation member 53 that is detection means for detecting the contact state and the non-contact state. The switch 61 includes a switch body 64 having an actuator 63 that is operated by the contact operation member 53.

  As shown in FIG. 8, the switch body 64 is mounted on a circuit board 65 with the actuator 63 facing downward, and the circuit board 65 is fixed to the outer surface of the battery case 22 or the like. The operating element 63 is positioned at the center in the left-right direction in the main body 2 and is urged so as to protrude toward the bottom surface 4 side (lower side).

  As shown in FIG. 9, the abutting operation member 53 is disposed with the tip thereof facing the bottom surface 4 side, and has an operation recess 71 having the same shape as the recess 17A on the operation bottom surface 70 of the tip. The left and right tip edge surfaces 72, 72 are positioned on the same plane, and the plane and the reference surfaces 5, 5 are substantially parallel to each other.

  As shown in FIG. 9, the left and right side surfaces 73, 73 of the contact operation member 53 are formed in a tapered shape so that the width decreases from the upper surface 3 side toward the bottom surface 4 side. Further, as shown in FIG. 8, the front and rear side surfaces 74, 74 of the contact operation member 53 are formed so as to taper from the top surface 3 side toward the bottom surface 4 side.

  As shown in FIGS. 7 and 8, a flange 75 is provided around the base end side (the upper surface side of the main body 2) of the contact operation member 53. Further, at the center of the base end side of the contact operation member 53, a long ridge portion 76 is provided on the upper surface of the operation bottom surface 70 in the front-rear direction, and the horizontal upper surface 76J of the ridge portion 76 is the actuator. Press the tip of 63.

  An insertion hole 81 is formed in the frame bottom surface 55 of the mounting frame 52 so as to pass through the distal end side of the contact operation member 53. The upper portion (upper surface side) of the insertion hole 81 is the contact hole 81. Corresponding to the shape of the contact operation member 53, the contact operation member 53 is substantially square in plan view. A lower portion (bottom surface side) 81K of the insertion hole 81 has inclined inner surfaces 82, 82 on the front and rear sides and inclined inner surfaces 83, 83 on the left and right sides, and the front and rear inclined inner surfaces 82, 82 face the bottom surface 4 side. The right and left inclined inner surfaces 83 and 83 are formed in a tapered shape so that the distance increases toward the bottom surface 4 side.

  The angle of the inclined inner surfaces 82 and 83 with respect to the vertical is 30 ° to 60 °, preferably 40 ° to 50 °. The angle of the side surfaces 73 and 74 with respect to the vertical is relative to the vertical of the inclined inner surfaces 82 and 83. It is smaller than the angle and is about 3 to 10 degrees. If the angle of the inclined inner surfaces 82 and 83 with respect to the vertical is too small, the distance from the side surfaces 73 and 74 becomes narrow, and foreign objects are likely to be sandwiched therebetween, whereas if the angle of the inclined inner surfaces 82 and 83 with respect to the vertical is too large. The lower end of the insertion hole 81 becomes wider, and the interval between the left and right side surfaces 6 and 6 must be unnecessarily widened.

  As shown in FIG. 8, the upper edge 84 around the upper portion 81J of the insertion hole 81 is formed horizontally, and the contact operating member 53 is placed in a state where the flange 75 is placed on the upper edge 84. Retained. In this state, the tip of the contact operation member 53 protrudes downward from the reference surfaces 5 and 5, and a slight gap is formed between the upper surface 76 </ b> J of the protrusion 76 and the tip of the actuator 63.

  Further, even if the main body 2 is turned upside down and the load of the contact operation member 53 is applied to the operating element 63, the operating element 63 is urged toward the bottom surface 4 by the urging means (not shown) of the switch main body 64. Therefore, the actuator 63 does not move by the biasing force, and the switch body 64 does not operate. For this reason, the contact operation member 53 is about 1 gram or less, and is lighter than the weight which operates the actuator 63.

  On the other hand, when the bottom surface 4 of the main body 2 is placed on the target surface 10, the switch 63 is moved by being pushed by the contact operation member 53 due to the weight of the main body 2, the switch main body 64 is operated, and laser light irradiation is performed. The switch main body 64 emits a signal for turning on the unit 33, and the control means (not shown) operates the laser beam irradiation unit 33 according to this signal, and the laser beam R is irradiated. Further, for example, when the user presses the bottom surface 4 of the main body 2 against the target surfaces 10 and 10A in the vertical direction, the switch main body 64 is operated by the pressing force.

  On the other hand, when the main body 2 is lifted and separated from the target surface 10, the tip of the contact operation member 53 protrudes outward from the reference surfaces 5 and 5 due to the weight of the contact operation member 53 and / or the biasing force of the operating element 63. The switch main body 64 is activated to issue a signal for turning off the laser beam irradiation unit 33, and the irradiation of the laser beam R is stopped.

  Therefore, the laser beam R is automatically stopped by simply lifting it up without performing a switch operation. Moreover, even if the level device 1 placed on the target surface 10 falls to the left or right due to strong winds or large vibrations, the irradiation of the laser beam R stops.

  Further, a through hole 86 is formed in the right side surface 56, which is one of the left and right side surfaces 56, 56 of the mounting frame 52, and an operation of the side switch 87 serving as an auxiliary switch is formed in the through hole 86. A switch body 89 having an operating portion 88 is built in the main body 2. On the condition that the main power switch 31 is on, the laser light R is turned on while the operation unit 88 is being pressed or in contact with the laser beam R, and the operation unit 88 is not operated. The side switch 87 is actuated to turn off the irradiation.

  Therefore, in the lifted state, the side switch 87 can be operated to irradiate the laser beam R and used as a laser pointer. When the main power switch 31 is turned off and the operation of the switch bodies 64 and 89 is continued, the laser light R is emitted when the main power switch 31 is turned on.

  When the main power switch 31 is turned off, the laser light R is not irradiated even when the main body 2 is placed or when the main unit switch 31 is brought into contact with the operating unit 88 of the side switch 87.

  Further, a light emitter 29 such as an LED is attached to the opposite side of the battery case 22 in the main body 2. When the main power switch 31 is turned on, the light emitter 29 is powered by the battery. The light is emitted, and light from the light emitter 29 is guided to the bubble tube 12 of the horizontality recognition unit 14 by a light guide (not shown), so that the bubbles 13 can be easily seen.

  Thus, in this embodiment, corresponding to claim 1, the main body 2 having the reference surface 5 as the reference portion on the bottom surface 4, the levelness recognition unit 14 provided on the main body 2, and the main body 2 are provided. In the leveler 1 with a laser pointer that includes a laser beam irradiation unit 33 that irradiates the laser beam R and a switch 61 that turns on and off the irradiation of the laser beam R, the switch 61 is connected to the target surface 10 of the reference surface 5. Since the irradiation of the laser beam R is turned on in the contact state and the irradiation of the laser beam R is turned off in the non-contact state of the reference surface 5 to the target surface 10, the reference surface 5 of the main body 2 is targeted at the time of use. When it comes into contact with the surface 10, the laser beam R is irradiated, and when the main body 2 is separated from the target surface 10, the laser beam R stops being irradiated, so that the laser beam R is not accidentally irradiated.

  Thus, in this embodiment, in correspondence with claim 2, the switch 61 has the contact operation member 53 as a detecting means for detecting that the reference surface 5 as the reference portion is in contact with the target surface 10 as the target portion. Therefore, the contact operation member 53 can detect the contact state and the non-contact state, and turn the laser light R on and off.

  Thus, in the present embodiment, corresponding to claim 3, the detection means includes the contact operation member 53 that makes contact with the target surface 10 that is the target portion, so that the contact operation member 53 makes contact with the target surface 10. Thus, the contact state and the non-contact state can be detected, and the laser light R can be turned on / off.

  As described above, in this embodiment, in correspondence with the fourth aspect, the contact operation member 53 is provided so as to protrude outward from the reference surface 5 as the reference portion, and the reference surface 5 is placed on the target surface 10. Therefore, when the main body 2 is placed on the target surface 10, the contact operation member 53 is detected to detect the contact state, and when the main body 2 is lifted, the tip of the contact operation member 53. Appears and the non-contact state can be detected.

  Thus, in the present embodiment, corresponding to claim 5, the bottom surface 4 is provided with the insertion hole 81 through which the contact operation member 53 is inserted, and the contact operation member 53 becomes narrower from the upper side toward the bottom surface 4 side. Since it is formed, it is difficult for foreign matters such as sand to enter the insertion hole 81.

  Thus, in the present embodiment, corresponding to claim 6, the bottom surface 4 is provided with the insertion hole 81 through which the contact operation member 53 is inserted, and the insertion hole 81 is formed wider from the upper side toward the bottom surface 4 side. Therefore, it is difficult for foreign matters such as sand to enter the insertion hole 81.

  Thus, in this embodiment, corresponding to claim 7, the bottom surface 4 is provided with the insertion hole 81 through which the contact operation member 53 is inserted, and the bottom surface 4 side of the insertion hole 81 is widened from the upper side toward the bottom surface 4 side. Since it is formed, foreign matter such as sand is less likely to enter the insertion hole 81, and it is difficult to bite foreign matter between the insertion hole 81 and the contact operation member 53.

  Thus, in this embodiment, corresponding to claim 8, reference surfaces 5 and 5 serving as reference portions are provided on both sides of the bottom surface 4 of the main body 2 in the width direction, and the reference surfaces 5 and 5 on both sides are provided with the reference surfaces 5 and 5. A reference portion side recess 17 in the length direction of the reference surfaces 5 and 5 is provided, the through hole 81 is arranged on the bottom surface 4 provided with the reference portion side recess 17, and the reference portion is provided at the center of the tip of the contact operation member 53. Since the concave portion 17A corresponding to the side concave portion 17 is provided, the concave surface 17A can be used stably on the target surface 10A having an arc shape or the like.

  Hereinafter, as an effect of the embodiment, a main power switch 31 is provided at the center in the height direction on the front surface 21 of the front member 8, and a case lid 24 and a laser beam path 32 are provided above and below the main power switch 31. Therefore, the configuration of the rear member 9 can be simplified, and even if the through hole 41 for connecting the string-like body 42 to the rear member 9 is provided, it does not get in the way. Further, since the tip 31S of the main power switch 31 is located on or inside the imaginary line connecting the front surface 21 at the position of the opening 23 and the outer surface of the attached knob cover 26, the main power switch 31 is inadvertently used during use. Contact with the power switch 31 can be prevented.

  Further, since the contact operation member 53 is configured to be urged by the actuator 63 of the switch body 64, a separate urging means is not required, and the apparatus can be simplified. Furthermore, since the contact operation member 53 has a hollow shape, the weight is reduced.

  FIG. 10 shows a second embodiment of the present invention, in which the same parts as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted. This figure shows a modification of the switch, and uses a non-contact type proximity sensor 91 using laser light, ultrasonic waves, or the like as detection means.

  Specifically, if the detecting means of the switch 61A is a proximity sensor 91 using a measurement laser beam, the sensor laser beam is provided at the center in the length direction of the bottom surface 4 of the main body 2 without providing the mounting frame 52. A passage 92 is formed, the proximity sensor 91 and the switch body 93 are disposed in the main body 2, and the sensor laser light emitted downward from the proximity sensor 91 passes through the sensor laser light passage 92. is doing.

  Then, the proximity sensor 91 receives the sensor measurement laser light reflected on the target surface 10 to detect the position of the target surface 10, and the reference surface 5 is in contact with the target surface 10 based on this detection data When the switch body 93 is detected, the switch body 93 is activated, and a signal for turning on the laser beam irradiation unit 33 is generated. Based on this signal, a control means (not shown) operates the laser beam irradiation unit 33 and the laser beam R is irradiated. Is done. On the other hand, when it is detected that the reference surface 5 and the target surface 10 are in a non-contact state based on the detection data, the switch body 93 is activated to emit a signal for turning off the laser light irradiation unit 33, and the laser Irradiation of light R stops.

  As described above, in the present embodiment, the switch 61A includes the proximity sensor 91 serving as a detection unit that detects that the reference surface 5 serving as the reference portion is in contact with the target surface 10 serving as the target portion. The laser light R can be turned on and off by detecting the non-contact state, and the same operation and effect as the first embodiment can be obtained.

  Moreover, in this example, the number of mechanical components can be reduced by using the non-contact type proximity sensor 91 as the detection means.

  FIG. 11 shows a third embodiment of the present invention. The same reference numerals are given to the same portions as those of the above-described embodiments, and the description thereof will be omitted in detail. This figure shows a modified example of the levelness recognition unit.

  The leveler 1A of this example is not provided with the bubble-type levelness confirmation units 14 and 14A, but is provided with a pointer-type levelness confirmation unit 101 using gravity.

  Specifically, the horizontality recognition unit 101 projects an arc-shaped display unit 102 at the upper part of the main body central portion 7, and an angle scale 103 as an arc-shaped gradient scale is provided in the display unit 102. The angle scale 103 is provided with a 0 degree point 104 perpendicular to the reference plane 5 at the top, and the angle scale 103 is attached so that the angle increases from the central 0 degree point 104 in the left-right circumferential direction. ing.

  A central axis 105 is provided at the center of the angle scale 103, a pointer 106 is rotatably provided on the central axis 105, a weight 107 is provided below the position of the central axis 105 of the pointer 106, and the pointer 106 is moved by gravity. It is configured to point vertically upward.

  Therefore, when the pointer 106 points to the 0-degree point 104, it can be seen that the target surface 10 in contact is horizontal.

  As described above, in this embodiment, since the levelness recognition unit 101 provided in the main body 2 is provided, the same operations and effects as the above-described embodiments are achieved.

  The present invention is not limited to this embodiment, and various modifications can be made within the scope of the gist of the present invention. For example, in the embodiment, the concave portions 17, 17A, 71 are V-shaped, but may be U-shaped, and the shape can be appropriately selected. Moreover, although the dry battery was illustrated as a power supply, a rechargeable battery, a solar panel, etc. may be used as a power supply, or those combinations may be used. Furthermore, in the embodiment, the abutting operation member and the through hole are shown in which the front and rear side surfaces are tapered, and the left and right side surfaces are tapered, but any one of the four side surfaces is inclined. It is preferable that any one of the front and rear side surfaces and the left and right side surfaces is tapered. In addition, in the embodiment, the rectangular contact operation member is shown in a plan view, but the shape can be selected as appropriate, for example, the contact operation member is formed in a bottomed cylindrical shape, and an operation recess is provided even when the shape is different. It is preferable. Furthermore, in the embodiment, the bubble type and the pointer type level are exemplified, but the present invention can be applied to various types of level such as a digital type.

DESCRIPTION OF SYMBOLS 1 Level 1A Level 2 Main body 3 Upper surface 4 Bottom surface 5 Reference surface (reference part)
6 Side 10 Target surface (plane)
10A Target surface (arc shape)
14 horizontality confirmation unit 14A horizontality recognition unit 17 reference side recess 18 oblique side 19 corner 31 main power switch 33 laser light irradiation unit 51 notch 53 contact operation member (detection means)
61 Switch 61A Switch 63 Actuator 64 Switch body 81 Insertion hole 82 Front and rear inclined inner surfaces 83 Left and right inclined inner surfaces 91 Proximity sensor (detection means)
93 Switch body 101 Leveling accuracy R Laser light

Claims (8)

A main body having a reference portion on the bottom surface, a leveling confirmation portion provided on the main body, a laser light irradiation portion provided on the main body for irradiating laser light, and a switch for turning on / off the irradiation of the laser light. In the leveler with a laser pointer, the switch turns on the irradiation of the laser light in a contact state with the target portion of the reference portion, and in a non-contact state of the reference portion with the target portion. A leveler with a laser pointer, wherein the irradiation of the laser beam is turned off. The leveler with a laser pointer according to claim 1, wherein the switch includes a detecting unit that detects that the reference unit is in contact with the target unit. The leveling device with a laser pointer according to claim 2, wherein the detecting means includes a contact operating member provided on the main body and contacting the target portion. 4. The abutting operation member is provided so as to be able to protrude outward from the reference portion, and is configured to sunk in a state where the reference portion is placed on the target portion. Leveler with laser pointer. The laser pointer according to claim 3 or 4, wherein an insertion hole for inserting the abutting operation member is provided in the bottom surface, and the abutting operation member is formed narrower from the upper side toward the bottom surface side. With level. 5. The leveler with a laser pointer according to claim 3, wherein an insertion hole through which the abutting operation member is inserted is provided in the bottom surface, and the insertion hole is formed wider from the upper side toward the bottom surface side. . 6. The horizontal with a laser pointer according to claim 5, wherein an insertion hole for inserting the abutting operation member is provided in the bottom surface, and a bottom surface side of the insertion hole is formed narrower from the upper side toward the bottom surface side. vessel. The reference portion is provided on both sides in the width direction of the bottom surface of the main body, and a reference portion side recess in the length direction of the reference portion is provided between the reference portions on both sides, and the reference portion side recess is provided on the bottom surface. The laser according to any one of claims 3 to 7, wherein the abutting operation member is disposed on a front end of the abutting operation member, and a concave portion corresponding to the concave portion on the reference portion side is provided at a center of a tip of the abutting operation member. Leveler with pointer.

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