JP2005257599A - Attachment for positioning light receiver and photodetector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform accurate marking work at a position offset from a photodetector. <P>SOLUTION: With respect to this attachment for positioning used to locate the position of the photodetector by adjusting a laser beam irradiated from a laser beam irradiator to a detection reference line of a light receiving surface, the attachment comprises a plate for fixing/holding the photodetector on its back surface. The plate is provided with a groove part extending along the longitudinal direction of the photodetector on at least one side thereof, a scale movably held in the groove part for measuring an offset amount from the reference line of the receiving surface, a positioning member for fixing the scale at an arbitrary position in the groove part, a cursor having the same level as the reference line of the receiving surface for reading the divisions of the scale at the position, and a groove to put a mark for giving marking-off at a position agreeing with the reference line and with the cursor. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a positioning attachment and a light receiver suitable for use in a light receiving device of a laser marking device used when performing marking work at a construction site or the like, and based on a laser beam received by the light receiving device. Thus, it is intended to accurately put a ruled line at a location offset from the light receiver.

  In recent years, in construction and civil engineering sites, the laser beam emitted from the irradiator is received by a light receiver arranged at a distance, and a mark is given by a recess provided on the side of the case of the light receiver based on the received light. Ink marking work to put ruled lines is now being carried out, and this has enabled accurate and efficient work.

  The position where the laser beam emitted from the laser emitter as a horizontal line is received and offset upward or downward from the light receiving position (detection reference line) of the light receiver (particularly the position exceeding the length of the light receiver body). In the marking process, where the ruled line is put in, it is common to place a mark on the wall where the receiver body contacts, and then use a scale such as a tape measure to measure and then put the ruled line. As another procedure, there is also known a method in which a marking rod is slidably attached to a holder that holds a light receiver and a ruled line is drawn using the upper end or lower end thereof (for example, Patent Document 1).

Utility Model Registration No. 2580324

  By the way, in marking out work where a ruled line is put at a position offset from the light receiver, the ruled line is indirectly written based on a mark attached using a ruled part provided on the light receiver. If there is no place to put a ruled line, such as a wall that contacts the receiver body, etc. (piles that are received in the air and are present at low positions such as the floor, beams at high positions, light ceiling materials In the current situation, it is not possible to perform the marking process itself.

  As a method of performing the marking operation in a state where there is no wall or the like to contact the receiver body, it is possible to deal with it by attaching a marking bar member to the holder of the receiver, but a marking bar member of an appropriate size ( For example, when there is no such thing as a fool bar, it takes time to search for it, and the bar member has its own weight, so it is unavoidable that the handling is inconvenient and the work efficiency is lowered.

  Also, if the light receiver has a structure that can be attached to a bar member, the size will be larger than that of a normal light receiver. Not only is bad, but especially when the ruled line is put on a pile or the like at a lower position using the lower end of the marking bar member, or a vertical line irradiated toward the wall surface from a position not perpendicular to the wall surface is formed. In the case where the marking operation is performed by receiving a laser beam, there is a problem that the error increases as the dimension (thickness) from the light receiving surface to the back surface of the light receiving device increases.

  This is because the thickness from the light receiving surface to the back surface of the marking rod member when the slide member that slides the marking rod member is arranged on the back surface of the light receiver even if the light receiving device can be attached to and detached from the marking rod member. In addition, there is a similar problem, and the distance from the end surface of the marking bar member to the light receiving surface (actually the detection reference line) that receives the laser cannot be read directly.

  An object of the present invention is to propose a novel attachment and a light receiver capable of performing an accurate and simple ink marking operation even when the ink marking operation is performed at a location offset from the light receiver.

The present invention is a positioning attachment that identifies the position of the light receiver by matching the laser beam emitted from the laser irradiator with the detection reference line of the light receiving surface,
A plate for holding the light receiver on its back surface;
A groove portion having a bottom wall extending along the longitudinal direction on at least one side of the light receiver and conforming to the back surface of the light receiver in the same plane on the plate, and movably held in the groove portion and on the light receiving surface. A scale that measures the offset amount from the detection reference line, a positioning member that fixes the scale at an arbitrary position of the groove, and a cursor that has the same level as the detection reference line on the light receiving surface and reads the scale scale at that position And a V-shaped groove for attaching a mark for marking a ruled line at a position matching the detection reference line and the cursor.

Further, the present invention is a light receiver that receives a laser beam emitted from a laser irradiator at a light receiving surface,
The light receiver includes a groove extending along the longitudinal direction on at least one side of the light receiver, a scale that is movably held in the groove and measures an offset amount from the detection reference line of the light receiving surface, and the scale. A positioning member that is fixed at an arbitrary position in the groove, a cursor that has the same level as the detection reference line on the light receiving surface, and a scale that reads the scale scale at that position, and a ruled line at a position that matches the detection reference line and the cursor And a plate having a V-shaped groove to which the mark is attached.

  In the attachment or light receiver configured as described above, the scale can be provided with a restoring member that returns to the initial position regardless of the movement in the groove.

  The plate is preferably embedded and fixed along the groove, and a magnet that attracts the scale is disposed in the groove.

  Since the light receiver is fixedly held by a thin plate, the size (thickness) from the light receiving surface to the back surface can be prevented from increasing. Never give.

  Confirmation and inspection of the distance from the laser line to the object to be measured can be performed accurately and easily.

  In addition, since a scale such as a straight scale or a curved scale can be used, there is no need to selectively mount a marking rod-like member having an appropriate length, and since it is lightweight, handling is facilitated and work efficiency is increased.

  By simply reading the scale scale with a cursor, the amount of offset can be accurately grasped without the need for other measuring instruments such as a tape measure.

  By connecting the scale to the plate via an elastic member, it is possible to keep the tip of the scale abutting against the object to be measured even when the receiver is moved when receiving the laser line. The ink marking work can be performed easily even underneath (for example, when installing a ceiling).

  The scale can be prevented from dropping by the magnet.

Hereinafter, the present invention will be described more specifically with reference to the drawings.
FIG. 1 is a diagram showing an embodiment of an attached according to the present invention.

  In the figure, reference numeral 1 denotes a light receiver that receives a laser beam emitted from a laser irradiator. The light receiver 1 has a detection reference line L on the light receiving surface 1a, and the position of the light receiver 1 is specified by matching the line of the laser beam to the detection reference line L.

  Reference numeral 2 denotes a groove provided integrally with the case of the light receiver 1. The groove 2 coincides with the detection reference line L, and is used to mark a wall surface or the like with the position of the light receiver 1 specified.

  Reference numeral 3 denotes a plate for fixing and holding the light receiver 1 on its back surface by screwing or the like. The plate 3 has a groove portion 3a that extends along the longitudinal direction on one side of the light receiver 1 and has a bottom wall that coincides with the back surface of the light receiver 1 in the same plane, and is held movably by the groove portion 3a. A scale 3b for measuring the offset amount of the light receiving surface 1a from the reference line L, a positioning member 3c for fixing the scale 3b at an arbitrary position of the groove 3a, and a level equivalent to the reference line L of the light receiving surface 1a. A cursor 3d for reading the scale of the scale 3b at that position, and a V-shaped groove 3e for attaching a mark for placing a ruled line at a position matching the detection reference line L and the cursor 3d are provided.

  Reference numeral 4 denotes an elastic member (spring or the like) for constantly abutting the tip of the scale 3b against the object to be measured regardless of the movement in the groove 3a.

  The detection reference line L, the cursor 3d, and the groove 3e existing on the light receiving surface 1a of the light receiver 1 are all on the same line, and the light receiver 1 receives the laser beam and the position of the light receiver 1 is specified. The offset amount can be set simply by aligning the scale 3b with the cursor 3d so as to have a predetermined dimension, and at the same time, a mark for putting a ruled line at that portion is attached using the groove 3e. be able to.

  The back surface of the light receiver 1 is usually a high-precision ruler, and the bottom wall of the groove portion 3a of the plate 3 that fixes and holds the ruler is formed on the same surface as the back surface of the light receiver 1. It is possible to ensure the same accuracy as.

  When the light receiver 1 is connected by a fastening member n such as a screw that penetrates the plate 3, the head of the screw is prevented from projecting to the surface of the plate 3, thereby ensuring a stable posture when pressed against the wall. . The fastening member may be a clip-like fastener using the elasticity of a spring in addition to a screw.

  The case where one scale 3b is provided on one side of the light receiver 1 is shown as an example. However, the other side of the plate 3 may be extended and provided on both sides, and this is not a limitation.

  Further, the grooves 3e for attaching the marks for ruled lines are not limited to the V shape, and may be linear.

  FIG. 2 is a plan view showing another example of the attachment according to the present invention. A magnet 5 can be embedded and fixed to the plate 3 along the groove portion 3a, and the scale 3b can be temporarily fixed by adsorbing the scale 3b with the magnet 5 so that the positioning member 3c is released. Avoid falling.

  The positioning member 3c for fixing the scale 3b at an arbitrary position of the groove 3a may be fixed from the side as shown in FIG. 1, or may be fixed from the front as shown in FIG.

  The present invention may adopt the configuration shown in FIG. 3 in which the attachment having the above-described configuration is integrated with the light receiver 1, and even in such a configuration, the operation is as simple as the above-described attachment. Accurate ink marking work can be performed.

  It is possible to provide an attachment and a light receiver capable of writing a ruled line with high accuracy even in a marking operation in which a ruled line is entered offset from a position received by the light receiver.

It is the figure which showed embodiment of the attachment according to this invention. It is the figure which showed other embodiment of the attachment according to this invention. It is the figure which showed embodiment of the optical receiver according to this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Light receiver 1a Light-receiving surface 2 Groove part 3 Plate 3a Groove part 3b Scale 3c Positioning member 3d Cursor 3e Groove 4 Elastic member 5 Magnet L Detection reference line

Claims (4)

A positioning attachment that identifies the position of the light receiver by matching the laser beam emitted from the laser light emitter to the detection reference line of the light receiving surface,
A plate for holding the light receiver on its back surface;
A groove portion extending along the longitudinal direction on at least one side of the light receiver, a scale for measuring an offset amount from the detection reference line of the light receiving surface held movably in the groove portion, and the scale in the groove portion. A positioning member that is fixed at an arbitrary position, a cursor that has the same level as the detection reference line on the light receiving surface, and that reads scale marks at that position, and a ruled line at the position that matches the detection reference line and cursor A positioning attachment comprising a groove for attaching a mark. A light receiver that performs positioning by aligning the laser beam emitted from the laser irradiator with the detection reference line of the light receiving surface,
The light receiver has a groove portion having a bottom wall extending along the longitudinal direction on at least one side of the light receiver and matching in the same plane with respect to the back surface of the light receiver, and a light receiving surface held movably in the groove portion. A scale for measuring an offset amount from the detection reference line, a positioning member for fixing the scale at an arbitrary position of the groove, and a scale scale at the position having the same level as the detection reference line of the light receiving surface 1. A light receiver comprising a cursor and a plate having a detection reference line and a groove with a mark for placing a ruled line at a position matching the cursor.   The positioning attachment according to claim 1 or 2, wherein the scale has an elastic member that always abuts the tip of the scale against the object to be measured regardless of movement in the groove portion. The positioning attachment according to any one of claims 1 to 3, wherein the plate includes a magnet that is embedded and fixed along the groove portion and attracts the scale in the groove portion.

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