JP3041840U - Inking device - Google Patents

Abstract

(57) [Abstract] [Purpose] A marking device that can reduce the impact load on the bearing portion of the pivoting means as much as possible when the impact load is applied to the beam projector and the device base. To provide. A beam projector 1 for projecting a beam M from both upper and lower ends along a central axis L is oscillated via a pivoting means 6 to the side of a central opening 3 of a device base 2 having a plurality of supporting legs 17. In the marking device which is movably pivotally supported, a cylindrical pivoting means receiver 5 is concentrically attached to the central opening 3 of the device base 2 via a cushioning member 4, and the pivoting means receiver 5 and It is characterized in that a pivotal support means 6 is provided between the beam projector 1 and the upper end portion thereof.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a marking-out device used to perform marking-out work from a floor surface to a ceiling or a wall surface at a construction work site, for example.

[0002]

[Prior art and its problems]

 In this type of marking device, a beam projector that projects a beam along the central axis from both upper and lower ends is swung via a pivoting means to the central opening side of the device base equipped with a plurality of supporting legs. A gyro is generally used as the pivot means, but in the conventional marking device, the gyro is concentric with the upper end of the beam projector and the upper end of the device base. Since it is interposed between the cylindrical support wall and the cylindrical support wall formed integrally with the gyro, if a shock load is applied to the beam projector or the device base while the device is being carried, the impact load will cause the gyro There was a problem that a large load was instantaneously applied to the bearing part, causing a deviation in the squareness. Further, in the conventional marking device, since the beam is projected only from the upper and lower ends of the beam projector, only the marking work in the vertical direction can be performed.

In view of the above problems, the present invention can alleviate the impact load applied to the bearing portion of the pivoting means when the impact load is applied to the beam projector or the device base. An object is to provide a marking device. Another object of the present invention is to provide a marking device that can perform marking work in the vertical and horizontal directions.

[0004]

[Means for Solving the Problems]

 In the invention according to claim 1, the beam projector 1 for projecting the beam M from both upper and lower ends along the central axis L is pivoted to the side of the central opening 3 of the device base 2 having a plurality of supporting legs 17. In the marking out device pivotally supported via 6, a cylindrical pivot support receiver 5 is concentrically attached to the central opening 3 of the device base 2 via a buffer member 4. A pivoting means 6 is provided between the pivoting means receiver 5 and the upper end of the beam projector 1.

A second aspect of the present invention is the marking-out device according to the first aspect, wherein the cushioning member 4 is an O-ring.

According to a third aspect of the present invention, in the marking-out device according to the first or second aspect, a beam projector protective cap 26 having a light transmission port 25 is attached to the pivot support means 5. To do.

According to a fourth aspect of the invention, the beam projector 1 for projecting a beam along the central axis L from both upper and lower ends is provided with a plurality of support legs 17 on the side of the central opening 3 of the device base 2. In the marking device in which the beam M1 is pivotally supported via a pivoting means 6, a beam M1 projected from the upper end of the beam projector 1 along the central axis L to the upper end side of the beam projector 1. A first deflecting member 31 that deflects at a right angle to the central axis L, and a second deflecting member 32 that can deflect the beam M2 from the first deflecting member 31 with respect to the beam axis by a predetermined angle and can rotate about its own axis. The beam deflector 33 including the above is detachably attached and rotatably mounted around the central axis L of the beam projector 1.

A fifth aspect of the present invention is the marking-out device according to the fourth aspect, wherein the first deflecting member 31 is a 90 ° deflecting prism.

A sixth aspect of the present invention is the marking device according to the fourth or fifth aspect, wherein the second deflecting member 32 is a wedge prism.

A seventh aspect of the present invention is characterized in that, in the marking out apparatus according to any of the fourth to sixth aspects, the beam projected from the upper end of the beam projector 1 is a laser beam.

An eighth aspect of the present invention is the marking out apparatus according to any one of the fourth to seventh aspects, wherein the beam projector 1 is provided on either one of a lower end side thereof and an upper end side of the beam projector 1. It is characterized in that it is fixed to the upper end of the beam projector 1 by the magnetic attraction force of the magnet piece 40 provided and the magnetic piece 28 provided on the other side.

[0012]

【Example】

 An embodiment will be described with reference to the drawings. In FIG. 1, reference numeral 1 is a cylindrical beam projector that projects a beam from both upper and lower ends along a central axis L, and a hollow shaft portion 1a having a small diameter is formed at the upper end portion. doing. A device base 2 has a central opening 3, and a cylindrical pivoting means receiver 5 is concentrically attached to the central opening 3 via a cushioning member 4, and the pivoting means receiver 5 A pivot support step 6 is interposed between the upper end hollow shaft portion 1a of the beam projector 1 and the beam projector 1.

As shown in FIG. 1, in the cylindrical pivotal support receiver 5, the lower end side 5 b is formed to have a smaller diameter than the upper end side 5 a, and the lower end side small diameter portion 5 b is the center of the device base 2. Two upper and lower cushioning members 4 and 4 each made of an O ring are interposed between the outer peripheral surface of the small diameter portion 5b on the lower end side and the central opening portion 3 so as to be loosely fitted in the opening portion 3. The buffer member 4 on the upper side is fitted into an annular groove formed on the upper end of the inner peripheral surface of the central opening 3 as shown in the drawing, and the large diameter portion 5a on the upper end side of the cylindrical pivot support means receiver 5 is formed. The buffer member 4 on the lower side is held, and the cushioning member 4 on the upper side is fitted into an annular groove as shown in the figure formed at the lower end of the inner peripheral surface of the central opening 3 to lower the lower end of the cylindrical pivot support means 5. It is held by a retaining ring 7 screwed onto the part.

The beam projector 1 includes a cylindrical upper body 8 forming an upper end hollow shaft portion 1a having a small diameter, and a hollow shaft-shaped lower body 9 coaxially connected to a lower portion thereof. The upper body 8 contains an IC circuit 11 together with a laser diode 10 for the upper light source, an optical collimating lens 12 is arranged above the laser diode 10, and a lower body 9 has a light source for the lower light source. The photodiode 13 is built in, and the light collecting lens 14 is arranged below the photodiode 13. A cylindrical casing 15 is hung and connected to the apparatus base 2, and a power source battery 16 of the beam projector 1 is arranged on the peripheral side of the casing 15 and a lower end of the casing 15 is provided. Three support legs 17 are attached to the section at regular intervals in the circumferential direction. In FIG. 3, 45 is a magnetic damper for limiting the swing of the beam projector 1, and 46 in FIGS. 1 and 3 has a light transmission port 44, which is the lower side of the beam projector 1. Is a lower cover that protects.

As can be seen from FIGS. 1 and 2, the pivoting means 6 is provided with a ring member 18 in which the upper end shaft portion 1a of the beam projector 1 is concentrically arranged on the outer periphery of the shaft portion 1a. The ring member 18 is rotatably supported around a first axis 19 extending in the diametrical direction of the ring member 18, and the ring member 18 extends in the diametrical direction of the ring member 18 with respect to the cylindrical pivoting means receiver 5. The gyro structure is rotatably supported around a second axis 20 orthogonal to the first axis 19.

The pivotal support means 6 having the above gyro structure will be described in detail. On the upper end shaft portion 6 of the beam projector 1, ball bearings 21, 21 are arranged at both diametrically opposite positions through which the first axis 19 passes. The ring member 18 is provided with pins 22 and 22 projecting from the ring member 18 at positions facing the both bearings 21 and 21 on the first axis 19. Is rush-engaged concentrically with. Further, ball bearings 23, 23 are arranged on both sides of the ring member 18 in the diametrical direction through which the second axis 20 passes, and the pivot support means receiver 5 provided so as to surround the ring member 18 includes: Pins 24, 24 project from the second axis 20 at positions facing the ball bearings 23, 23, and the tips of the pins 24 are concentrically inserted into the bearings 23. According to the pivot means 6, the beam projector 1 can be swung with respect to the ring member 18 about the first axis 19, and the ring member 18 is orthogonal to the pivot means receiver 5 with respect to the first axis 19. The beam projector 1 can swing about the second axis 20, and thus the beam projector 1 can swing in all directions. Incidentally, FIG. 1 is a cross-sectional view in which both of the pins 22 and 24 are exposed at the same time. The actual arrangement of the pins 22 and 24 is as shown in FIG.

A beam projector protection cap 26 having a light transmission port 25 is screwed on the upper end portion (upper end side large diameter portion 5 a) of the cylindrical pivot support means receiver 5. A glass 27 is arranged inside the light transmitting port 25 of the cap 26, and the glass 27 is fixed by a glass retaining ring 28 made of a magnetic metal such as iron.

When using the marking-out device having the above-described configuration, as shown in FIG. 1, the marking-out device is placed at a place where the ground ink 29 is previously attached to the floor surface F in the room, and the power switch is turned on. (Not shown) is put in, and the laser beam M from the laser diode 10 is projected upward from the light transmission port 25 of the cap 26 through the upper end hollow shaft portion 1a through the optical plane lens 12 and at the same time. The beam N from the diode 13 is projected downward through the light collecting lens 14, and the beam projector 1 is stopped at the vertical position by its own weight.

When the beam N emitted from the lower end of the beam projector 1 is aligned with the ground ink 29 with the beam projector 1 stationary in the vertical position in this way, the laser beam M emitted from the upper end is projected onto the ceiling, The blacking position is automatically displayed on the vertical line of the ground black 29, and the black is added to the display position to form the ceiling black 30. This ceiling ink 30 can be used as a mounting position for lighting equipment, anchor bolts and the like.

Although the marking-out device shown in FIGS. 1 to 3 has been described above, in the marking-out device, a cylindrical shape is formed in the central opening 3 of the device base 2 via the buffer member 4 formed of an O-ring. Since the pivot supporting means receiver 5 is concentrically attached, and the pivot supporting means 6 composed of a gyro is provided between the pivot supporting means receiver 5 and the upper end hollow shaft portion 1a of the beam projector 1. Even if the upper end of the beam projector 1 or the device base 2 is abutted against an object while the marking device is being carried, the upper end of the beam projector 1 or the device base 2 may be impacted. The shock is absorbed and relaxed by the cushioning member 4 so that the bearings 21 and 23 and the pins 22 and 24 of the pivotally supporting means 6 are not loaded, and the function of the pivotally supporting means 6 is not impaired. The accuracy of the device is maintained.

FIG. 4 shows the marking-out device in which the beam deflector 33 is mounted on the upper end of the beam projector 1 of the marking-out device described with reference to FIGS. Hereinafter, the marking-out device including the beam deflector 33 will be described with reference to FIGS. 4 to 7. Since the marking-out device itself is exactly the same as that of FIGS. 1 to 3, only the reference numerals of the components of the device are attached to the drawings, and the description thereof is omitted.

As shown in FIG. 4, the beam deflector 33 is a first deflector for deflecting the laser beam M 1 projected from the upper end of the beam projector 1 along the central axis L at a right angle to the central axis L. The first deflecting member 31 has a member 31 and a second deflecting member 32 capable of deflecting the laser beam M1 from the first deflecting member 31 by a predetermined angle with respect to its beam axis and rotating itself about its axis. , Is fixedly mounted inside the cylindrical container 34, and the second deflecting member 32 is concentrically mounted on a rotatable cylindrical body 35 that penetrates the sidewall of the cylindrical container 34 in the radial direction. There is.

The first deflecting member 31 is a pentahedral pentagonal prism that is a constant-deflecting prism that emits all the light incident on the effective surface with a 90 ° shift, and the light is incident at any angle. The incident light can be deflected by 90 °. The first deflecting member 31 composed of such a 90-degree deflecting prism is fixed to the concave portion 36 formed in the central portion of the cylindrical container 34 as shown in FIGS. 5A and 5B. On the lower surface of the cylindrical container 34, there is provided a fitting concave portion 38 that can be fitted to a fitting convex portion 37 formed concentrically with the beam projector 1 on the upper end of the cap 26 on the beam projector 1 side. The optical path 39 is formed concentrically with the optical path 34, the optical path 39 communicating with the recess 36 is provided in the bottom surface of the fitting recess 38, and the magnet ring 40 is fixed around the optical path 39. A cap 41 is removably attached to the upper end of the cylindrical container 34.

The second deflecting member 32 is shown as a disk-shaped member having a uniform thickness in FIGS. 4 and 5, but actually, as shown in FIG. 7, a wedge-shaped wedge-shaped wedge member. As shown in FIG. 7, this wedge prism can deflect a beam M incident from the side surface of the wedge prism by a predetermined angle θ with respect to the beam axis and emit the beam. The cylindrical body 35 to which the second deflecting member 32 is attached and fixed is rotatably fitted in a lateral hole 34a penetrating the side wall portion of the cylindrical container 34 in the radial direction, and the cylindrical body 35 of the container 34 is rotated at an arbitrary rotational position. It can be fixed with screws 42 from the upper end side. Therefore, the second deflecting member 32 can be freely rotated around the axis h (see FIG. 6) of the member 32 by rotating the cylindrical body 35.

To mount the beam deflector 33 configured as described above on the marking-out device, the fitting recess 38 of the beam deflector 33 is fitted to the cap 26 on the beam projector 1 side. When fitted to the convex portion 37, the beam deflector 33 is fixed at a fixed position by the magnetic attraction force between the magnet ring 40 on the beam deflector 33 side and the magnetic ring 28 provided on the cap 26 side. You can Of course, the beam deflector 33 can freely rotate around the central axis L of the beam projector 1 against the magnetic attraction force.

A method of using the marking-out device equipped with the beam deflector 33 will be described. First, the reference height position 43 is displayed on the wall surface W for marking-out. The reference height position 43 is the height position from the floor surface F of the projection point accurately and horizontally projected onto the wall surface W from the beam deflector 33 of the marking device installed on the floor surface F. After displaying the reference height position 43 in this way, the power switch is turned on, and while confirming the laser beam M1 which is horizontally projected from the laser diode 10 through the beam deflector 33, the direction of the second deflecting member 32 is illustrated. The reference height position 43 of the wall surface W as shown in FIG. 4 is set, and the beam projector 1 is stopped at the vertical position by its own weight.

With the beam projector 1 stationary in the vertical position as described above, the laser beam M1 from the laser diode 10 passes through the optical collimating lens 12 and reaches the first deflecting member 31 of the beam deflector 33. Upon incidence, this laser beam M1 is deflected by 90 ° by the first deflection member 31 and emitted. The laser beam M2 deflected by 90 ° is incident on the second deflecting member 32, where the laser beam M3 deflected by a predetermined angle with respect to the incident beam M2 is positioned 43 near the reference height position 43 of the wall surface W. 'Is projected. Here, the cylindrical body 35 to which the second deflecting member 32 is attached is rotated around its axis h (see FIG. 6), and the projection light point of the laser beam M3 projected on the wall surface W is set to the reference height. The circular cylinder 35 is fixed until the projected light point reaches the same level as the reference height position 43. In order to rotate the cylindrical body 35 of the beam deflector 33, the cap 41 attached to the upper end of the cylindrical container 34 is removed, and the screw 42 fixing the cylindrical body 35 is loosened to remove the cylindrical body 35. It suffices to rotate the tip of the.

As described above, the laser beam M3 whose projection light point on the wall surface W is at the same level as the reference height position 43 is projected horizontally from the second deflecting member 32 of the beam deflector 33 toward the wall surface W. Since the beam deflector 33 is rotated around the central axis L of the beam projector 1 in this state, the projected light point of the laser beam M3 horizontally swivels along the wall surface W, All the projection light points projected on the wall surface W are at the same height position as the reference height position 43. Therefore, by rotating the beam deflector 33 around the central axis L of the beam projector 1, it is possible to automatically display the same blacking position as the reference height position 43 on the four circumferential wall surfaces in the room, and the black mark is displayed at that display position. It can be attached to make wall ink. Thus, the wall ink can be used to measure the height of the window, for example. In this case, since the beam projected from the upper end of the beam projector 1 is the laser beam, even if the distance from the marking-out device to the marking-out position is considerably long, it can be projected sufficiently and accurate marking is performed. be able to.

In the above beam deflector 33, as the first deflecting member 31, instead of the 90 ° deflecting prism, a reflecting mirror inclined at 45 ° with respect to the central axis L of the beam projector 1 may be used. However, since the reflecting mirror has a large error in the emission angle, a 90 ° -deflecting prism that can deflect the light by 90 ° and emit the light is preferable regardless of the incident angle of the light. Further, as the second deflecting member 32, the second deflecting member 32 capable of deflecting the laser beam M 1 from the first deflecting member 31 by a predetermined angle with respect to its beam axis and being rotatable around its own axis is an essential requirement, The horizontal deflection beam can be obtained by the second deflecting member 32 as described above. Particularly, if a wedge prism is adopted as the second deflecting member 32, good accuracy can be obtained. In this case, if the beam deflector 33 is configured only by the first deflecting member 31 composed of the 90 ° deflecting prism without providing the second deflecting member 32, the 90 ° deflecting prism also has a slight tolerance, so that an accurate As the horizontal projection beam cannot be obtained and the distance from the beam deflector 33 to the marking position becomes longer, the marking position error becomes larger.

[0030]

[Effect of the invention]

 According to the first aspect of the invention, the cylindrical support means receiver is concentrically attached to the central opening of the apparatus base via the buffer member, and the support means receiver and the upper end portion of the beam projector are connected to each other. Since a pivotal support consisting of a gyro is installed between the two parts, the upper end of the beam projector and the device base may be struck against an object, etc., while carrying the marking device. Even if an impact is applied to the beam projector or the equipment base, the impact is absorbed and mitigated by the buffer member, and the load is not applied to the fine bearing part of the pivot means, thus impairing the function of the pivot means. Therefore, the accuracy of the marking-out device can be maintained.

If the O-ring is used as the cushioning member as in the second aspect, the cost is low and the mounting is simple.

According to the third aspect, by mounting the beam projector protection cap having the light transmitting port on the pivot support means, the upper end portion of the beam projector can be protected and the pivot support means can be protected. can do.

According to the fourth aspect of the invention, the first deflecting member for deflecting the beam projected along the central axis from the upper end of the beam projector to the upper end side of the beam projector at a right angle to the central axis. And a beam deflector having a second deflecting member capable of deflecting the beam from the first deflecting member with respect to the beam axis by a predetermined angle and rotating about the axis thereof. The beam projected along the central axis from can be a horizontal projection beam, which enables horizontal marking work.

According to the fifth aspect, by using the 90 ° deflecting prism as the first deflecting member, the light from the upper end of the beam projector can be deflected by 90 ° and emitted at any angle, which is excellent. Accuracy can be obtained.

According to the sixth aspect, by using the wedge prism as the second deflecting member 32, good accuracy can be obtained.

According to the seventh aspect, by using the laser beam as the beam projected from the upper end of the beam projector, it is possible to sufficiently project even if the distance from the marking device to the marking position is considerably long. Therefore, accurate marking can be performed.

According to the eighth aspect, the beam deflector can be securely fixed to a predetermined position on the upper end side of the beam projector, and the beam deflector can be easily attached and detached.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view of a marking device according to the present invention.

FIG. 2 is an enlarged sectional view taken along line XX of FIG.

FIG. 3 is a vertical cross-sectional view in a state where the phase is different from that of FIG. 1 by 90 °.

FIG. 4 is a vertical cross-sectional view of a marking device equipped with a beam deflector.

5A is a vertical sectional view of the beam deflector, and FIG. 5B is a sectional view taken along line YY of FIG.

FIG. 6 is a perspective view showing a beam deflector.

FIG. 7 is a perspective view showing a wedge prism.

[Explanation of symbols]

 1 Beam Projector 2 Device Base 3 Central Opening 4 Buffer Member 5 Pivot Support Receiver 6 Pivot Support 17 Support Leg 25 Beam Projector Protection Cap 28 Magnetic Ring 31 First Deflection Member 32 Second Deflection Member 33 Beam Deflector 35 Rotating body L Central axis of beam projector M Laser beam M1 Laser beam M2 Laser beam M3 Laser beam

Claims (8)

[Utility model registration claims] 1. A beam projector for projecting a beam from both upper and lower ends along a central axis is pivotally supported on a central opening side of an apparatus base having a plurality of supporting legs via pivoting means. In the marking device, the cylindrical support means receiver is concentrically attached to the central opening of the device base via a cushioning member, and between the support means receiver and the upper end of the beam projector. A marking device characterized by being provided with pivot means. 2. The marking device according to claim 1, wherein the cushioning member is an O-ring. 3. The marking-out device according to claim 1, wherein the pivot support means is equipped with a beam projector protection cap having a light transmitting port. 4. A beam projector for projecting a beam from both upper and lower ends along a central axis is pivotally supported on a central opening side of an apparatus base having a plurality of supporting legs via pivoting means. In the marking device, the first deflecting member for deflecting the beam projected along the central axis from the upper end of the beam projector at a right angle to the central axis, and the first deflecting member. A second beam capable of deflecting a beam from the member with respect to its beam axis by a predetermined angle and rotating about its own axis;
A marking device, wherein a beam deflector having a deflecting member is detachably mounted so as to be rotatable about a central axis of the beam projector. 5. The marking device according to claim 4, wherein the first deflecting member comprises a 90 ° deflecting prism. 6. The marking device according to claim 4, wherein the second deflecting member comprises a wedge prism. 7. The beam projected from the upper end of the beam projector is a laser beam.
The marking-out device according to any one of 1 to 6. 8. The beam deflector is a beam projector by a magnetic attraction force between a magnet piece provided on either one of a lower end side of the beam deflector and an upper end side of the beam projector and a magnetic piece provided on the other side. The marking-out device according to any one of claims 4 to 7, wherein the marking-out device is fixed to the upper end of the.