JP2012052812A - Pointer type instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pointer type instrument capable of improving a vibration resistance even if the pointer is a shape meandering many times.SOLUTION: The pointer type instrument comprises: a display 1; a display board 2 having index parts 211, 221 and surrounding a periphery of the display 1, in which the display 1 is arranged to be visible; a driving device 6 arranged at a rear of the display 1, in which a pointer shaft 61 projects to a side of the display 1; and a pointer 7 connected to the pointer shaft 61 and indicating an index part 2 by revolving around the pointer shaft 61 as the center of rotation. The pointer 7 has a first to fifth body parts 711 to 715 and a translucent body part 71 having a first to a third bent parts 74 to 76. In the pointer type instrument, a reinforcement cover 72 consists of a single member is arranged to continuously cover at least the first, second, third, and fourth of the body parts 711 to 714 of the body part 71, and the reinforcement cover 72 consists of a material whose comparative strength is greater than a material consisting of the body part 71.

Description

  The present invention relates to a pointer-type instrument mounted on, for example, an automobile, a motorcycle, a construction machine, or a small ship, and in particular, on the outer periphery of a display such as a liquid crystal, an indicator portion of a scale plate and a pointer indicating the indicator portion The present invention relates to a pointer-type instrument that uses a pointer-type display.

  As this type of pointer-type meter, for example, one described in Patent Document 1 below is known. This pointer-type meter includes a display unit composed of a liquid crystal display unit, a display plate having an indicator unit such as a scale and characters, surrounding the display unit and having a window portion for viewing the display unit, and a display unit By a driving device that is arranged behind the needle shaft and protrudes toward the display side, and is bent and extended in a substantially “S” shape so as to bypass both the display device and the display plate by being connected to the pointer shaft. And a pointer that indicates the indicator portion by being driven to turn about the pointer shaft.

  The pointer includes a first main body portion that extends in the counter-rotation center direction on the back side of the display device, and a second main body portion that extends from the first main body portion and extends laterally of the display device in the thickness direction of the display device. , A third main body portion that is continuous with the second main body portion and is in front of the display device and extends between the display device and the display plate in the direction of the rotation center, and is continuously displayed on the third main body portion. A fourth main body portion extending in the thickness direction of the display plate on the inner periphery of the window portion of the plate, and a fifth portion that is continuous with the fourth main body portion and extends in the counter-rotation center direction on the front side of the display plate. Main body part. Thus, by adopting a configuration in which the pointer that is bent in a substantially “S” shape extends from between the display device and the display plate to the front side of the display plate over the inner periphery of the window portion of the display plate, Can be abolished and quality can be improved.

JP 2005-181301 A

  By the way, although the material of the pointer is not particularly described in Patent Document 1, the pointer may emit light for the purpose of ensuring the visibility when the surroundings are dark, for example, at night. It is conceivable that light is emitted from a light source formed from a light-sensitive synthetic resin and separately arranged. However, when the pointer is formed of a light-transmitting synthetic resin (for example, polycarbonate), the light-transmitting synthetic resin has a low specific strength (Young's modulus / specific gravity), so that the rigidity of the pointer is lowered and vibration resistance may be deteriorated.

  The present invention focuses on the above-mentioned problems and aims to provide a pointer-type instrument capable of improving the earthquake resistance even when the pointer has a shape meandering many times.

In order to solve the above-described problems, the present invention provides a display, a display plate having an indicator portion and surrounding the display, and disposed so that the display is visible, and disposed behind the display. A driving device in which a pointer shaft protrudes toward the indicator, and a pointer that is connected to the pointer shaft and indicates the indicator portion by turning about the pointer shaft as a rotation center. A first main body portion extending in the counter-rotation center direction on the rear surface side, and a second main body portion extending in the thickness direction of the display device on the side of the display device via the first bent portion. A main body part, a third main body part extending in the direction of the center of rotation of the display unit and continuing to the second main body part via the second bent part, and the third bent part via the third bent part. 4th main body part which continues to the main body part of 3 and extends in the thickness direction on the front side of the display A translucent material having the fourth main body portion and a fifth main body portion that is continuous with or connected to the fourth main body portion and extends in the counter-rotation center direction on the front side of the display plate and points to the indicator portion. In the pointer-type meter having a main body portion, a reinforcing cover made of a single member that continuously covers at least the first, second, third, and fourth main body portions of the main body portion is provided. Is made of a material having a specific strength higher than that of the material constituting the main body.
By configuring in this way, the pointer can be reinforced by the reinforcing cover, and the earthquake resistance can be improved even if the pointer is meandering many times.

In the reinforcing cover, first and third portions corresponding to the first and third main body portions are opened on the back side, and a second portion corresponding to the second main body portion is the center of rotation. The fourth portion corresponding to the fourth main body portion opens toward the rotation center side.
By comprising in this way, when assembling a bending-shaped reinforcement cover to a bending-shaped main-body part, it can assemble | attach easily.

A pointer cover that covers a predetermined portion of the fifth main body portion is provided, and a locking portion that engages with an engaging portion formed at the fourth portion is formed on the pointer cover.
With this configuration, the pointer cover can be easily assembled.

In the invention, it is preferable that the reinforcing cover is made of any synthetic resin of ABS, SPS, PBT, and POM.
By comprising in this way, the material specific strength of a reinforcement cover can be made higher than a guideline.

Further, the present invention is characterized in that the main body portion is made of any synthetic resin of PC, PMMA, COP, and COC.
By configuring in this way, good light guiding properties can be ensured.

  According to the present invention, the initial object can be achieved, and the earthquake resistance can be improved even if the pointer has a shape meandering many times.

The front view of the pointer type instrument by one Embodiment of this invention. The figure explaining the whole outline with AA sectional view of Drawing 1 (hatching is omitted). The disassembled perspective view of the pointer | guide by the same embodiment. FIG. 3 is an exploded perspective view of a pointer according to the embodiment, and is a view in which a viewing direction is changed from FIG. 2. (A)-(f) is a disassembled perspective view explaining the assembly | attachment process of the pointer | guide by the same embodiment. 5A is a cross-sectional view of each part of FIG. 5D, FIG. 5A is a cross-sectional view of the dotted line region X, FIG. 5B is a cross-sectional view of the dotted line region Y, and FIG. Sectional drawing of FIG.5 (f).

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  1 and 2, a pointer-type instrument according to an embodiment of the present invention is incorporated in a combination meter mounted on a dashboard of an automobile, for example, and includes an indicator 1, a display board 2, an edge member 3, and the like. The light guide 4, the circuit board 5, the driving device 6, the pointer 7, and the light sources 8 and 9 are provided.

  The display 1 is composed of, for example, a liquid crystal display, has a circular outer shape corresponding to the shape of a first window portion to be described later of the display panel 2, and is electrically driven through the circuit board 5 to travel distance. Display any vehicle information such as outside air temperature and fuel consumption.

  The display board 2 is divided into two parts: a first display board 21 arranged on the display 1 side and a second display board 22 arranged closer to the observer than the first display board 21. Has been. These display boards 21 and 22 are formed by, for example, printing an indicator portion, which will be described later, and a background portion as a background of the indicator portion using a well-known screen printing or digital printing technique on the surface of a translucent substrate. In this embodiment, the display panel 2 is divided into the first and second display panels 21 and 22. However, the display panel 2 can be divided into two or more sheets.

  The first display plate 21 is formed, for example, as a circular flat plate, and using the printing technique, for example, a first indicator portion 211 (white in the present embodiment) made of, for example, translucent numerals (characters), A first background portion 212 (black in this embodiment) having a light shielding property is formed.

  This first display panel 21 is located on the front side of the display 1 so as to surround and cover the outer edge of the display 1 and the surrounding area where no information is displayed on the display 1 (the side facing the observer not shown). 1st window part 213 which makes it visible and can visually recognize the information display area of the indicator 1 is formed. The first window portion 213 is formed as a circular opening that exposes the information display area of the display 1, but can also be formed as a transparent see-through portion that covers the information display area of the display 1. .

  The second display panel 22 gradually increases in diameter (increases in diameter) in a trumpet shape from the deep part on the first display panel 1 side toward the observer side, and has a larger cone than the first display panel 21. A second indicator portion 221 (which has the same color as the first indicator portion 211 in the present embodiment), which has a portion 220 and an outer peripheral portion thereof, and is made of, for example, a scale having translucency using the printing technique; A second background portion 222 having the same characteristics (in this embodiment, the same color as the first background portion 212) is formed, and a three-dimensionally shaped portion such as the conical portion 220 is formed using a well-known drawing technique. ing.

  The second display board 22 is disposed on the front side of the first display board 21 so as to surround and cover the outer edge of the first display board 21 and its surrounding area. A circular second window portion 223 is formed to make the first indicator portion 211 visible.

  The first and second display plates 21 and 22 are arranged so that the first and second window portions 213 and 223 are concentric with a rotation center, which will be described later. Laminated in the line-of-sight direction, the space portion 23 is configured such that a part of a detour portion described later of the pointer 7 is located.

  The edge member 3 is made of a decorative member in which the surface of a synthetic resin material having a substantially triangular cross-sectional shape and a circular shape in front view is plated or painted with a metallic tone (silver), and is formed on the inner edge of the first window portion 213. The display area of the display 1 is bordered by being arranged on the front side of the display 1 along the same direction. The edge member 3 can also be provided as a light-transmitting member that receives light from a light source (not shown) or light sources 8 and 9 and emits light in a predetermined color.

  The light guide 4 is made of, for example, a light-transmitting synthetic resin, and is disposed along the back surface of the display 1 and the first display plate 21 (the surface facing away from the observer). Then, the display 1 and the first and second display plates 21 and 22 (first and second indicator portions 211 and 221) are backlit from the back side (the side opposite to the observer).

  The circuit board 5 is made of a well-known hard circuit board, is arranged behind the light guide 4, and has a driving device 6 and light sources 8 and 9 mounted thereon.

  The driving device 6 is composed of, for example, a stepping motor, and is disposed behind the display device 1 and the light guide 4, and a pointer shaft 61 protrudes toward the display device 1 side. In this case, the driving device 6 has a configuration in which the main body portion is located on the back side of the circuit board 5 and the pointer shaft 61 projects through the circuit board 5 to the display 1 side. Further, in this case, the pointer shaft 61 extends forward so as to form a rotation center axis (virtual axis serving as a rotation center) RC by the rotation thereof.

  The pointer 7 is the same as the reinforcing cover 72 and a main body portion 71 made of a translucent synthetic resin such as PC (polycarbonate) resin, a reinforcing cover 72 made of a light shielding synthetic resin such as ABS (acrylonitrile butadiene styrene) resin, and the like. A pointer cover 73 made of a material and a balance weight BW are provided.

  As shown in detail in FIG. 3 and subsequent figures, the main body 71 includes a first main body 711 that extends on the back side of the display device 1 in the counter-rotation center RC direction, and a first bent portion 74. A second main body portion 712 extending in the thickness direction of the display device 1 and continuing to the second main body portion 712 via the second bent portion 75. A third main body 713 extending in the direction of the center of rotation RC, and a fourth main body extending to the third main body 713 via the third bent portion 76 and extending in the thickness direction on the front side of the display 1 A portion 714 and a fifth body portion 715 connected to the fourth body portion 714 and extending in the counter-rotation center RC direction on the front side of the display panel 2 to indicate the indicator portions 211 and 221.

  The first to fifth main body portions 711 to 715 are substantially S-shaped as a whole, the first to fourth main body portions 711 to 714 are an integral part, and the fifth main body portion 715 is the first to fourth main body portions. The main body portions 711 to 714 are separate parts.

  The first main body 711 has a shape that widens in a fan shape toward the rotation center RC, and reflects the light from the light source 9 to the tip side (fifth main body 715 side). ) Is formed. The first to third bent portions 74 to 76 have a predetermined curvature, bend approximately 90 degrees, and connect the first to fourth main body portions 711 to 714.

  The fifth main body portion 715 is connected to the fourth main body portion 714 through the reinforcing cover 72 and the pointer cover 73 at the rear end side opposite to the front end side, and similarly, a reflection surface 715a is formed at the rear end side. The light guided through the first to fourth main body portions 711 to 714 through the reflecting surface 715a is reflected to the distal end side, so that the fifth main body portion 715 itself emits light.

  The reinforcing cover 72 has a shape corresponding to the first to fourth main body portions 711 to 714 and the first to third connecting portions 74 to 76, and includes the first to fourth main body portions 711 to 714 and the first first to fourth main body portions 711 to 714. -It consists of a single part which covers the 3rd connection parts 74-76 continuously.

  The reinforcing cover 72 includes a first location 721 that covers the first body portion 711, a second location 722 that covers the second body portion 712, a third location 723 that covers the third body portion 713, 4th place 724 which covers the 4th body part 714, and the 1st and 3rd opening which the 1st and 3rd places 721 and 723 open in the shape of U character toward the back (one direction) The second portion 722 has a second opening 726 (in FIGS. 3 and 4) that opens in both the rotation center RC direction and the counter rotation center RC direction (in both directions). The fourth portion 724 has a fourth opening 728 (see FIG. 4) that opens in a U-shape (in one direction) toward the rotation center RC direction.

  The pointer cover 73 is bent corresponding to the fifth main body portion 715 and the fourth main body portion 714, and is continuously opened in the back direction and the counter-rotation center RC direction, and the fifth main body portion 715 and the fourth main body portion. 714, a slit corresponding to the fifth main body 715 is formed at a location corresponding to the fifth main body 715, and a fourth location 724 is provided at a location corresponding to the fourth main body 714. An engaging portion 73a that engages with the engaging portion 724a formed in the above is formed.

  The balance weight BW is a metal weight that balances the entire pointer 7 with respect to the rotation center RC, and is housed and disposed on the rear end side of the reinforcing cover 72.

  Hereinafter, the assembly of the pointer 7 will be described with reference to FIG. It is assumed that the balance weight is assembled to the reinforcing cover 72 in advance.

  First, as shown in FIG. 5A, the tip of the first main body portion 711 of the main body portion 71 is inserted into the second opening 726 of the reinforcing cover 71 obliquely from behind.

  Next, the main body 71 is further inserted up to the second main body 712 from the state of FIG. 5A to obtain the state of FIG.

  Next, the first main body 711 of the main body 71 is moved from the state of FIG. 5B to the first portion 721 side of the reinforcing cover 72 (FIG. 5C), and the first main body 711 is moved through the first opening 725 to the first position. 1 main body portion 711 in the first location 721, the second opening portion 726 through the second body portion 712 in the second location 722, and the third opening portion 727 through the third body portion 713. The fourth main body 714 is inserted into the third location 723 through the fourth opening 728 and into the fourth location 724, respectively. When the insertion is completed, the state shown in FIG. And the reinforcing cover 72 are assembled.

  Next, as shown in FIG. 5 (e), the assembled body of the fifth main body 715 and the pointer cover 73 that has been assembled in advance is inserted into the fourth location 724, and as shown in FIG. 5 (f). Further, when the engaging portion 73a of the pointer cover 73 is engaged with the engaging portion 724a of the fourth location 724, the assembly of the pointer 7 is completed.

  As described above, in the present embodiment, the display 1, the display plate 2 having the indicator portions 211 and 221 and surrounding the display 1 and disposed so that the display 1 can be visually recognized, and the back of the display 1 A driving device 6 having a pointer shaft 61 projecting toward the display 1 and a pointer 7 connected to the pointer shaft 61 and turning around the pointer shaft 61 to indicate the indicator portion 2. 7 is connected to the first main body 711 via the first main body 711 extending in the counter-rotation center direction RC on the back side of the display 1 and the first main body 711 via the first bent portion 74, and displays the side of the display 1. A second main body portion 712 extending in the thickness direction of the display device 1, and a third main body extending in the direction of the center of rotation RC on the front side of the display device 1 continuously to the second main body portion 712 via the second bent portion 75. Displayed continuously to the third body portion 713 via the portion 713 and the third bent portion 76 A fourth main body 714 extending in the thickness direction on the front side of 1 and connecting the fourth main body 714 to the front side of the display plate 2 in the counter-rotation center RC direction to indicate the indicator portions 211 and 221. In the pointer-type meter having the main body portion 71 made of a translucent material having the fifth main body portion 715, at least the first, second, third, and fourth main body portions 711, 712, 713 of the main body portion 71. , 714 is continuously provided, and a reinforcing cover 72 made of a single member is provided, and the reinforcing cover 72 is made of a material having a higher specific strength than the material constituting the main body 71, whereby the pointer 7 is reinforced by the reinforcing cover 72. Even if the pointer 7 has a shape that meanders many times, the earthquake resistance can be improved.

  In the present embodiment, the reinforcing cover 72 has first and third portions 721 and 723 corresponding to the first and third main body portions 711 and 713, respectively, open to the back side, and the second main body portion 712. The second portion 722 corresponding to the second center 722 opens in the rotation center RC direction and the counter-rotation center RC direction, and the fourth portion 724 corresponding to the fourth main body 714 opens toward the rotation center RC, thereby forming a bent shape. When the bending-shaped reinforcing cover 72 is assembled to the main body portion 71, it can be easily assembled.

  In the embodiment, the reinforcing cover 72 is formed using ABS resin, but any synthetic resin of SPS (syndiotactic polystyrene), PBT (polybutylene terephthalate), and POM (polyacetal) may be used. If these materials are used, the material specific strength of the reinforcing cover can be made higher than the guideline.

  In this embodiment, the main body is formed using a synthetic resin made of PC. However, any synthetic resin of PMMA (polymethyl methacrylate, COP (cycloolefin polymer), and COC (cyclic olefin copolymer)) is used. If these materials are used, good light guiding properties can be secured.

DESCRIPTION OF SYMBOLS 1 Display 2 Display board 3 Edge member 4 Light guide 5 Circuit board 6 Drive apparatus 7 Pointer 8, 9 Light source 21 1st display board 22 2nd display board 61 Pointer shaft 71 Main-body part 72 Reinforcement cover 73 Pointer cover 73a Locking portion 74 to 76 First to third bent portion 211 First indicator portion 212 First background portion 213 First window portion 220 Conical portion 221 Second indicator portion 222 Second background portion 223 Second 711-715 1st-5th main-body part 715a Reflecting surface 721-724 1st-4th location 725-728 1st-4th opening BW Balance weight RC Rotation center

Claims (5)

A display, a display plate that has an indicator portion and surrounds the periphery of the display and is disposed so that the display is visible; and a drive that is disposed behind the display and has a pointer shaft protruding toward the display And a pointer that is connected to the pointer shaft and indicates the indicator portion by turning about the pointer shaft as a rotation center, and the pointer extends on the back side of the display unit in the counter-rotation center direction. A main body part, a second main body part continuous with the first main body part via the first bent part and extending in the thickness direction of the display unit on the side of the display unit, and via the second bent part A third main body portion that is continuous with the second main body portion and extends in the direction of the rotation center on the front side of the display device, and a front portion of the display device that is continuous with the third main body portion via a third bent portion. A fourth body portion extending in the thickness direction on the side, and continuous with the fourth body portion or the fourth body portion A pointer-type meter having a main body portion made of a translucent material and having a fifth main body portion connected to the main body portion and extending in a counter-rotation center direction on the front side of the display plate. A reinforcing cover made of a single member that continuously covers at least the first, second, third, and fourth body portions of the portion, and the reinforcing cover has a specific strength higher than that of the material constituting the body portion. A pointer-type instrument characterized by being made of high materials. In the reinforcing cover, first and third portions corresponding to the first and third main body portions are opened on the back side, and a second portion corresponding to the second main body portion is the center of rotation. The pointer-type instrument according to claim 1, wherein the pointer-type instrument opens in a direction and the counter-rotation center direction, and a fourth portion corresponding to the fourth main body portion opens on the rotation center side.   2. A pointer cover that covers a predetermined portion of the fifth main body portion is provided, and an engaging portion that engages with an engaging portion formed at the fourth portion is formed on the pointer cover. 2. The pointer-type meter according to 2. The pointer type instrument according to any one of claims 1 to 3, wherein the reinforcing cover is made of any synthetic resin of ABS, SPS, PBT, and POM. The pointer-type instrument according to any one of claims 1 to 4, wherein the main body portion is made of any synthetic resin of PC, PMMA, COP, and COC.

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