JP2009014463A - Headlight tester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To dispose a display device of a thin screen type on a rational place on the whole headlight tester. <P>SOLUTION: This headlight tester is equipped with a vertical support member provided on the upper surface of a traveling carriage; a pedestal having the base end side fitted to the support member, and having the other end side extending in the horizontal direction; a driving means for lifting the pedestal disposed over the pedestal or the support member; a light receiving part placed fixedly on the upper surface of the pedestal, and having a condensing lens on the front face; a control device for performing operation processing of lamp information of a measuring vehicle acquired by the light receiving part; and a display device for displaying information processed by the control device. In the headlight tester, the base end of a support arm whose upper end is bent in the angle direction is fixed on the pedestal, and the display device of the thin screen type is mounted on the upper end of the support arm at a prescribed interval on the upper side of the light receiving part. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a headlight tester that measures the irradiation direction and the luminous intensity of a lamp by aligning the center of a lamp of a measurement vehicle with the center of the optical axis of the light receiving unit.

  In Patent Document 1 (particularly FIGS. 1 and 2) and Patent Document 2 (particularly FIG. 13), a traveling carriage, a vertical support member provided on the upper surface of the traveling carriage, and a base end portion are fitted to the support member. In addition, a pedestal with the other end extending in the horizontal direction, a pedestal raising / lowering driving means disposed over the pedestal or the support member, fixedly mounted on the upper surface of the pedestal, and having a condenser lens on the front surface In a headlight tester comprising: a light receiving unit; a control device that calculates and processes lamp information of the measurement vehicle obtained by the light receiving unit; and a display device that displays information processed by the control device. The matter fixedly installed in the upper end part of a vertical support member is indicated, respectively.

  The display device of the headlight tester described in these Patent Documents 1 and 2 is a box-type monitor fixedly installed at the upper end portion of the vertical support member. There are some problems to be improved because the angle cannot be adjusted and the screen is small.

  Incidentally, in recent years, display screens of display devices have become larger and thinner. For example, it is a display device called liquid crystal or plasma or a sheet-like organic EL display. Therefore, it is currently desired that a thin screen type display device should be used for a headlight tester. At that time, the headlight tester is considered in consideration of such factors as good workability in position, no influence on the posture of the light receiving unit, excellent aesthetics in design, easy to see, and low cost. It is desirable to arrange the display device at a reasonable place in the whole.

Patent Document 3 describes an example of a monitor television stand that is related to a part of the configuration of the present invention. Although the description about the specific structure of this patent document 3 is omitted, the stand provided on the back side of the display device (monitor television) is fixedly provided on the support plate for the display device and the back surface of the support plate. It is characterized in that it is provided with an eaves-shaped stand main body and an aspherical ball joint provided at the tip of the stand main body.
JP-A-8-338788 JP 2002-14007 A JP 2001-107943 A

  An intended object of the present invention is to dispose a thin screen type display device at a reasonable place in the entire headlight tester. In particular, the headlight tester includes a traveling carriage traveling on a rail, a vertical support member standing on the upper surface of the traveling carriage, and a light receiving unit that moves up and down via the vertical support member and the base. Another object of the present invention is to provide a headlight tester that takes into account the main circumstances such as good workability in position, good design aesthetics, easy viewing, and no influence on the attitude of the light receiving section.

  The headlight tester according to the present invention includes a vertical support member provided on the upper surface of the traveling carriage, a pedestal whose base end side is fitted to the support member and the other end side extends in the horizontal direction, and the pedestal or the support member. A driving device for raising and lowering the pedestal, a light receiving unit that is fixedly mounted on the upper surface of the pedestal and that has a condensing lens on the front surface, and a control device that performs arithmetic processing on lamp information of the measurement vehicle obtained by the light receiving unit In a headlight tester comprising a display device for displaying information processed by the control device, the base end portion of the support arm whose upper end portion is bent in the angular direction is fixed to the pedestal, and the upper end portion of the support arm A thin screen type display device is attached above the light receiving portion with a predetermined gap.

  Here, the “thin screen type display device” refers to a liquid crystal or plasma display device, a sheet-like organic EL display, or the like which has a large and thin display screen.

(A) Since a support arm extending from a pedestal corresponding to the base and having an upper end bent in an angular direction is used, the space above the light receiving unit can be fully utilized. As a result, a “thin screen type display device” can be attached to the upper end of the support arm.
(B) Since the display device is disposed immediately above the light receiving unit, it does not interfere with the work, and the measurer displays the display screen of the display device (and the large screen directly next to the light receiving unit and the operation unit). It is very easy to see and operability is good.
(C) Since the display device is not provided directly on the housing of the light receiving unit or the operation box of the operation unit, the weight of the display device is not added to the light receiving unit, and the display device is widely angled in the horizontal and vertical directions. Adjustments can be made. In particular, when the display device has a certain amount of weight, it is possible to eliminate the concern that the weight of the display device affects the posture of the light receiving unit (occurrence of measurement error).
(D) In addition, since the number of parts supporting the display device is small, there are effects that the cost is not increased, the aesthetic appearance of the design is excellent, and the display device can be set in a desired direction.

  Hereinafter, the best mode for carrying out the present invention shown in FIGS. 1 to 16 will be described.

(1) General Description—Vehicle Front FIG. 1 is a schematic explanatory view from a plan view, FIG. 2 is a front view, FIG. 3 is a left side view, and FIG. 4 is an electrical schematic explanatory view centering on a control device.

  Now, the headlight (hereinafter referred to as “lamp”) LA of the measurement vehicle V shown in FIG. 1 is a safety standard for road transport vehicles that measures the light intensity in front of 10 meters and the deflection angle of the optical axis (bulb). However, due to space constraints, the light is condensed by the condensing lens 12 of the light receiving unit constituting the headlight tester X, and the similar light distribution 10 m ahead of the lamp LA of the measurement vehicle V is displayed on the image screen ( It is transferred to a light distribution screen) and measured.

  For this purpose, the headlight tester X includes a light receiving unit 6 above the traveling carriage 2, and a condensing condensing lens 12 for condensing the irradiation light of the lamp LA is provided on the front surface of the light receiving unit. Projecting means (projection screen) 13 or the like serving as a reference in the XY directions is provided behind the interior.

  The light receiving unit 6 of the headlight tester X is for raising and lowering a pedestal provided on a rail 1 laid on the floor, a traveling carriage 2 that slides on the rail, and a vertical support member (for example, two vertical columns) 3 on the carriage. Means (including pedestal lifting drive means including a manual handle or a drive motor) 5 etc. can be moved indirectly and directly in a predetermined direction (for example, left and right direction, front and rear direction, up and down direction, and additionally around a vertical axis). . Therefore, the light receiving unit 6 can be directly opposed to the measurement vehicle V as shown in FIG.

(2) Environment for carrying out the invention First, the environment for carrying out the invention will be described with reference to FIGS. In addition, detailed matters omit the drawings and the description thereof.

  Reference numeral 1 denotes a rail laid on the floor. This rail is provided in parallel to the floor surface of the measurement work bay, and the measurement vehicle V stops on the floor surface so as to be orthogonal to the rail 1. Reference numeral 2 denotes a traveling cart that travels left and right on the rail. The traveling cart 2 has a pulley on the lower surface.

  Reference numeral 3 denotes a plurality of vertical support members erected at a portion near one end portion of the upper surface of the traveling carriage. These vertical support members 3 are, for example, a long plate-like mounting base at a portion near the left end of the upper surface of the carriage 2. Two in total are erected in the front-rear direction via the plate.

  Reference numeral 4 denotes a pedestal whose base end side is slidably fitted to the support member 3 and whose other end side extends in the horizontal direction. On the front surface of the base end portion of the pedestal 4, an operation handle 5 a constituting the pedestal lifting drive means 5 is provided. Although not specifically shown, when the pedestal raising / lowering drive means (also referred to as a pedestal moving device) 5 is a manual type, a gear and a drive chain are provided on the base end side of the pedestal 4. The gear is rotatably mounted in the fitting tube at the base end portion, and the drive chain is disposed on the upper box side provided at the upper end portions of the traveling carriage 2 and the vertical support member 3, and the operation force of the operation handle 5a ( The horizontally long pedestal 4 is moved up and down by the driving force).

  On the other hand, when the pedestal raising / lowering drive means 5 is an automatic type, a drive motor is provided horizontally at the position of the operation handle 5a, a pinion is provided on the output shaft of the drive motor, and a rack meshing with the pinion is vertically supported. It is fixedly disposed along the main column of the member 3. In this case, the base 4 moves up and down along the vertical support member 3 by the driving force of the drive motor. Thus, the pedestal raising / lowering drive means 5 is disposed over the pedestal or the support member.

  Reference numeral 6 denotes a light receiving unit that is fixedly mounted on the upper surface of the base 4 and has a condenser lens 12 on the front surface. An example of the internal structure of the light receiving section 6 is as shown in FIG.

  Reference numeral 7 denotes an operation unit fixedly provided on the upper surface 6a of the housing of the light receiving unit 6 and having an operation box. A plurality of operation buttons are arranged on the inclined front panel 7 a of the operation unit 7. Reference numeral 8 denotes a vehicle facing finder disposed on one side wall of the operation unit 7.

Reference numeral 9 denotes a support arm whose base end is fixed to the pedestal and whose upper end is bent in the angular direction. The support arm 9 is, for example, a square pipe, and its specific configuration is as described later.
A thin screen type display device 10 is attached to the upper end of the support arm 9 above the upper surface 6a of the housing of the light receiving unit 6 with a predetermined gap 23.

  In the present invention, the base end portion of the support arm 9 whose upper end portion is bent in the angular direction is fixed to the pedestal 4 that moves up and down, and the display device 10 is placed above the light receiving portion 6 at the upper end portion of the support arm 9. There is an essential part (core) of the invention in that it is attached with 23. Particularly, the thin screen type display device 10 of the present invention is arranged with a predetermined gap 23 in the vicinity of the front panel 7a of the operation unit 7 provided on the upper surface 6a of the housing of the light receiving unit 6. There are features.

  Next, with reference to FIG. 4, the electrical members centering on the control device 16 will be described. In FIG. 4, LA is a lamp (headlight) of a measuring vehicle, 6 is a light receiving portion facing the lamp, 12 is a condensing lens of an optical system, and 13 is a projection means (projection screen or light distribution screen). , 14 is an image pickup means (for example, a CCD camera) disposed behind the projection screen 13, 15 is a signal conversion means, and 16 is a control device for calculating and processing lamp information of the measurement vehicle obtained by the light receiving section. , 17 is a storage unit, 7 is an operation panel for inputting signals to the control device 16 from the outside, an operation unit such as a keyboard, and 10 is a screen type display device for displaying information processed by the control device.

  The control device 16 is directly or indirectly provided in the light receiving unit 6. Further, regarding the configuration of the imaging means 14, depending on the embodiment, only one or a plurality of imaging means may be used without using the projection screen 13. In other words, the projection screen installed in the light receiving unit 6 is omitted, and the lamp image is directly applied to the imaging unit 14 from the condenser lens 12 that collects the light emitted from the lamp LA of the measurement vehicle. You may be allowed to get.

  Further, since the internal configuration of the light receiving unit 6 is not a limiting requirement of the present invention, it is needless to say that optical members such as a half mirror, a reflecting mirror, and a sensor may be appropriately provided.

(3) Essential part of the invention FIGS. 5 to 10 show the essential part (core) of the invention. FIG. 5 is an overall perspective view, and FIGS. 6 to 8 are a front view, a left side view, and a plan view of only the support arm 9. 9 to 11 are a front view, a left side view, and a plan view in which the thin display device 10 is attached to the upper end portion of the support arm 9 via an angle adjusting means 31 including a ball joint.

  First, the configuration of the support arm 9 will be described with reference to FIG. The support arm 9 includes a prismatic vertical portion 9a, a bent portion 9b connected in an arc shape to the upper end of the vertical portion 9a, a horizontal portion 9c extending in the horizontal direction at the tip of the bent portion 9b, A horizontal mounting base plate 9d fixed to the base end portion (base end portion of the support arm) of the vertical portion 9a, and integrally fixed to one side surface of the base end portion so as to be orthogonal to the mounting base plate 9d. A plurality of (for example, two) angle adjusting means mounting holes 20 are formed in the horizontal portion 9c with a required interval. A plurality of small mounting holes 21 are also formed in the mounting base plate 9d.

  9 to 11, the front wall of the horizontal portion 9c of the support arm 9 is provided with a thin screen type (for example, a notebook computer or a high-vision type) via an angle adjusting means 31 including a ball joint described later. On the other hand, the base end portion of the support arm 9 uses a fixing means (not shown), fixing means such as welding, and receives light from the vertical support member 3 via the mounting base plate 9d. It is fixed to the upper surface of the pedestal 4 corresponding to the portion 6.

  As a result, as shown in FIG. 2, in this type of headlight tester, the display device 10 having a relatively large screen is provided on the upper surface 6 a of the housing of the light receiving unit 6 or the upper surface 7 a of the operation box of the operation unit 7. It is positioned with a predetermined gap 23 above.

  In the present embodiment, the large screen 10 a of the display device 10 as a liquid crystal monitor is larger or slightly smaller than the condenser lens 12 of the light receiving unit 6. In addition, the horizontal width of the large screen 10 a is slightly smaller than that of the condenser lens 12, but the vertical width of the large screen 10 a is somewhat larger than that of the condenser lens 12. As described above, with respect to the size of the display device 10, the space between the vertical side wall (the right side surface in FIG. 2) of the vertical support member 3 and the upper surface 6 a of the light receiving unit 6 or the upper surface 7 a of the operation unit 7 is effectively used. Can be used.

(4) Angle adjusting means An angle adjusting means 31 having a ball joint capable of rotating the display device 10 left and right and up and down is interposed between the front surface of the upper end of the support arm 9 and the back side of the display device 10. ing.

  The configuration of the angle adjusting means 31 will be described with reference to FIGS. In FIGS. 15 and 16, reference numeral 32 denotes a first attachment member fixedly attached to the back surface of the display device 10. On the other hand, 33 is a second attachment member fixedly attached to the front surface of the horizontal portion 9 c of the support arm 9.

  Thus, the first mounting member 32 includes a rectangular base member 35 fixed to the center of the back surface of the display device 10 via a plurality of first fixing members 34, and a laterally recessed shape of the base plate 35. A channel-shaped support arm portion 36 fixed to the rear surface of the fitting portion 35a via an unnumbered fixing tool, and the channel-shaped support arm portion 36 integrally or integrally formed with the tip end portion of the support arm portion 36, A housing portion 37 having a ball joint containing chamber indicated by an imaginary line, a short cylindrical screw portion 38 projecting a predetermined amount in the radial direction from the outer surface of the housing portion 37, and an inner end portion of the housing portion 37. It comprises an operating rod 39 as a fixing means that is screwed into the portion 38 and has a knob portion at the outer end.

  On the other hand, the second attachment member 33 includes a single (a present embodiment) or a plurality of rectangular fixed bases 40 fixedly attached to the front surface of the horizontal portion 9c of the support arm 9 via the second fixing tool 41, The holding base 42 is fixed to the front surface of the fixed base 40 via an unfixed fixing tool and has a ball joint 43 of an imaginary line integrally at the tip of a short rod.

  In the above configuration, as shown in FIG. 14, in order to arbitrarily set the angle of the display device 10, the operation rod 39 is loosened, the display device 10 is moved to a desired angle by hand, and then the operation rod is operated. When 39 is tightened, the inner end portion is pressed against the ball joint 43, so that the display device 10 can be set to an arbitrary angle. Regarding the configuration of the angle adjusting means 31, a configuration as described in Patent Document 3 can also be adopted.

(5) Signal Line and Power Cord As shown in FIGS. 12 and 13, the signal line 25 that electrically connects the display device 10 and the control device 16 and the power cord 26 for the display device are provided on the support arm 9. It is provided in this support arm 9 along. In this embodiment, the signal line 25 and the power cord 26 are wrapped in an openable and closable long cover body 27 having male and female hooks except for an unnumbered connector portion. The long cover body 27 that houses the signal line 25 and the power cord 26 is detachably fixed so as to be hidden behind the support arm 9 so as not to be seen as much as possible from the front view of the headlight tester. Yes.

  In the examples shown in the embodiments of the invention, the “thin screen type display device” includes a sheet-like organic EL display in addition to a liquid crystal or plasma display device. In the case of a display, it is configured as follows. That is, a display unit is formed by a flexible rectangular EL element sheet and inner and outer rectangular holding plates that sandwich the EL element sheet, and a projecting support unit is formed at a substantially central portion of the back support plate of the display unit. It is desirable to mount the projecting support portion so as to wrap the enveloping portion of the projecting support portion in the ball joint of the angle adjusting means and through the fixing means.

  In addition, in the present embodiment, the support arm 9 is a pipe having a square cross section, but a pipe having a circular cross section may be used. Further, the power cord 26 for the display device and the like are wrapped in a long cover body 27 and arranged so as to be hidden behind the support arm 9, but depending on the design, a hollow support arm may be provided. 9 may be passed.

  The present invention is mainly used in the automobile maintenance industry using a headlight tester.

FIG. 1 to FIG. 16 are explanatory views showing the best embodiments of the present invention.
The schematic explanatory drawing from the planar view at the time of vehicle facing. Schematic explanatory drawing from the front view. FIG. 3 is a left side view based on FIG. 2. Electrical schematic explanatory drawing centering on a control apparatus. FIG. The front view of the support arm 9. FIG. The left view of the support arm 9. FIG. The top view of the support arm 9. FIG. The front view which attached the display apparatus 10 to the support arm 9. FIG. FIG. 10 is a left side view based on FIG. 9. FIG. 10 is a plan view based on FIG. 9. Schematic explanatory drawing which shows the arrangement | positioning state of the signal wire | line with respect to a support arm, and a power cord. Schematic explanatory drawing which shows the connection state of the signal wire | line and power cord with respect to a display apparatus. The conceptual diagram to the effect of having adjusted the angle of the display apparatus to the up-down direction and the left-right direction. Explanatory drawing from the perspective which shows the external appearance structure of an angle adjustment means (example from which the angle of a display apparatus differs). Explanatory drawing from the perspective which shows the external appearance structure of an angle adjustment means.

Explanation of symbols

V ... measurement vehicle, LA ... headlight (lamp), X ... headlight tester, 1 ... rail, 2 ... traveling carriage, 3 ... vertical support member, 4 ... pedestal, 5 ... pedestal lifting drive means, 5a ... operation Steering wheel, 6: light receiving unit, 6a: upper surface of casing, 7: operation unit, 7a: upper surface of operation box, 8: vehicle finder, 9 ... support arm, 9a ... vertical portion, 9b ... bent portion, 9c ... Horizontal portion, 9d ... Mounting base plate, 9e ... Reinforcing plate, 10 ... Display device, 10a ... Large screen of display device 10, 12 ... Condensing lens, 13 ... Projection means, 14 ... Imaging means, 15 ... Signal conversion means, DESCRIPTION OF SYMBOLS 16 ... Control apparatus, 17 ... Memory | storage part, 23 ... Predetermined space | interval, 20 ... Mounting hole for angle adjustment means, 21 ... Mounting hole for support arms, 25 ... Signal wire, 26 ... Power cord, 27 ... Cover, 31 ... Angle adjustment means, 43 ... Lumpur joint.

Claims (5)

A vertical support member provided on the upper surface of the traveling carriage, a pedestal whose base end side is fitted to the support member and the other end side extends in the horizontal direction, and a pedestal lift arranged over the pedestal or the support member Drive means, a light receiving unit fixedly mounted on the upper surface of the pedestal and having a condenser lens on the front surface, a control device for calculating and processing lamp information of the measurement vehicle obtained by the light receiving unit, information processed by the control device In a headlight tester equipped with a display device for displaying a display, a base end portion of a support arm whose upper end portion is bent in an angular direction is fixed to the pedestal, and a thin screen type display device is provided on the upper end portion of the support arm. A headlight tester, wherein the headlight tester is mounted above the light receiving portion with a predetermined gap. 2. The headlight according to claim 1, wherein angle adjusting means capable of rotating the display device in the horizontal and vertical directions is interposed between the upper end portion of the support arm and the back side of the display device. tester. 2. The headlight tester according to claim 1, wherein a signal line for electrically connecting the display device and the control device is provided on the support arm along the support arm. 2. The headlight tester according to claim 1, wherein the display device is disposed with a predetermined gap near the front panel of the operation unit provided on the upper surface of the light receiving unit. 2. The base end portion of the support arm according to claim 1, wherein a mounting base plate fixed to the upper surface of the pedestal and a reinforcing plate fixed to one side surface of the base end portion so as to be orthogonal to the mounting base plate are integrated. Headlight tester characterized by being provided.

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