JP6063659B2 - Pointer device - Google Patents

Description

  The present invention relates to a pointer device, and in particular, a light guide pointer main body that indicates a dial, a pointer having a light source that shines the pointer main body, and a moving mechanism that moves the pointer along the scale of the dial. And a pointer device provided with.

  2. Description of the Related Art Conventionally, as a pointer device that is mounted on, for example, a car and moves along a scale of a dial plate, a device as shown in FIG. 8 is known (Patent Document 1). As shown in the figure, a pointer device 100 described in Patent Document 1 is provided with a dial 101 provided with an arc-shaped scale, a pointer member 102 for indicating the scale, and a center of the dial 101. And a liquid crystal display 103.

  As shown in FIG. 8B, the pointer member 102 is provided on a ring gear 104 having substantially the same diameter as the scale. The ring gear 104 is provided so as to mesh with a gear 106 attached to the drive shaft of the motor 105. Thereby, the rotational force of the motor 105 is transmitted to the ring gear 104 through the gear 106, the ring gear 104 rotates, and the pointer member 102 moves along the scale. Thus, by moving the pointer member 102 along the scale, a space for disposing the liquid crystal display 103 at the center of the dial 101 can be provided.

  However, the above-described conventional pointer device 100 has poor visibility because the pointer itself cannot emit light. In order to solve this problem, a pointer device shown in Patent Document 2 has been proposed. In this pointer device, a flexible member in the form of a string is bridged between two pulleys arranged at intervals, and the flexible member can be moved between the two pulleys by rotating the pulley. By attaching the pointer to the flexible member, the pointer can be moved. And this flexible member is comprised with an electric wire etc., and the power is supplied to the light source of the pointer which moves via a flexible member.

  However, in order to supply power via the flexible member, one end of the flexible member is wound around one of the two pulleys, and a connection means for electrically connecting the power source and both ends of the flexible member is provided on the one pulley. There was a need. Since both ends of the flexible member wound around the pulley rotate and move, there is a problem that the structure of the connecting means is complicated and the pulley is enlarged. In addition, as described above, it is necessary to wrap both ends of the electric wire around the pulley and supply power, so that the two flexible members of the forward path and the return path are bridged between the pulleys, which increases the size. there were.

JP 2000-1331099 A JP 2008-232676 A

  Accordingly, an object of the present invention is to provide a pointer device that can supply power to a light source of a pointer that moves along a scale with a simple configuration.

In order to achieve the above object, the invention described in claim 1 is characterized in that a light guide pointer main body indicating a dial, a pointer having a light source that shines the pointer main body, and the scale along the dial A pointer device comprising a moving mechanism for moving a pointer, a belt-like flat circuit connected between the light source and a power source, having one end connected to the light source and the other end connected to the power source comprising a body, and a gutter-shaped feed guide portion provided along a moving locus of the pointer, the first end and the surplus portions between the other end of the flat circuit body is folded in a U-shape The one end and the other end projecting in opposite directions in the band width direction, and the one end is pulled out from the front opening of the power feeding guide portion to the light source. Connected to the other end A pointer device, characterized in that connected to the power supply is drawn to the outside through the holes provided on the rear surface of the feed guide section.

According to a second aspect of the present invention, the pointer includes a pointer base that holds the pointer body, and a holder that is attached to the pointer base and holds one end portion of the flat circuit body between the pointer base and the pointer base. The pointer device according to claim 1 , comprising:

As described above, according to the first aspect of the present invention, it is possible to supply power to the light source of the pointer that moves while fixing the other end connected to the power source by giving the wire an extra length. The pointer that moves along the scale can be self-luminous with a simple configuration. Moreover, since the extra length portion of the flat circuit body is accommodated in the feeding guide portion, the feeding guide portion to restrict the movement of the flat circuit body, never flat circuit member from interfering with other components.

According to the first aspect of the present invention, power can be supplied to the light source of the pointer that moves using the flat circuit body without applying an extra load to the flat circuit body.

According to invention of Claim 2 , the end part of a flat circuit body can be easily hold | maintained to a pointer base using a holder.

It is a front view which shows one Embodiment of the instrument apparatus incorporating the pointer apparatus of this invention. (A)-(C) are front views of a pointer and a moving mechanism when the pointer is positioned on the left side, center, and right side of the scale. It is a perspective view of the pointer | guide and the moving mechanism which comprise the meter apparatus shown in FIG. It is a fragmentary perspective view of the pointer and movement mechanism which constitute the meter device shown in FIG. It is a fragmentary perspective view of the pointer and movement mechanism which constitute the meter device shown in FIG. It is the II sectional view taken on the line of FIG. It is a disassembled perspective view of FPC and the pointer which comprise the meter apparatus shown in FIG. (A) is a front view which shows an example of the conventional pointer apparatus, (B) is a front view in the state which removed the dial plate and liquid crystal display of the pointer apparatus shown to (A).

  Hereinafter, an embodiment of an instrument device incorporating the pointer device of the present invention will be described with reference to FIGS. The instrument device according to the present embodiment is mounted on a vehicle such as an automobile, and displays a traveling speed of the vehicle to an occupant of the vehicle. As shown in FIG. 1, the instrument device 1 supplies power to a dial 2 provided with a scale 2A, a pointer 3 indicating the scale 2A on the dial 2, and a light source 37 described later of the pointer 3. Flexible wire, FPC 4 as a flat circuit body, and a moving mechanism 5 for moving the pointer 3 along the scale 2A of the dial 2. In FIG. 1, illustration of the pointer main body constituting the pointer 3 is omitted.

  As shown in FIG. 1, the dial plate 2 is provided in a substantially rectangular shape, and a substantially rectangular opening 2B is provided in the center thereof. The opening 2B is cut so that the upper edge follows an arc shape. A liquid crystal display 6 is disposed on the back of the opening 2B, and the liquid crystal display 6 can be viewed from the front through the opening 2B. The scale 2A is formed in an arc shape along the upper edge of the opening 2B on the front face of the dial 2. In addition, a cylindrical eaves 7 is attached to the front face of the dial plate 2 to prevent external light from being reflected by the dial plate 2 and the liquid crystal display 6 and making the dial plate 2 and the liquid crystal display 6 difficult to see. ing.

  Next, the moving mechanism 5 will be described before the details of the hands 3 and the FPC 4 are described. As shown in FIGS. 2 and 3, the moving mechanism 5 includes a guide rail 51 that guides the movement of the pointer 3, a flexible member (not shown) that is bridged along the guide rail 51 by a plurality of pulleys (not shown), A rewinding spring 52 provided at one end of the flexible member, a take-up pulley 53 around which the other end of the flexible member is wound, a motor (not shown) that rotates the take-up pulley 53 and moves the flexible member to the guide rail 51 It is equipped with.

  The guide rail 51 is made of, for example, a synthetic resin. The guide rail 51 is formed along the scale 2A of the dial 2, and is provided along the guide guide portion 54 for guiding the pointer 3 and the movement locus of the pointer 3, and accommodates an extra length portion of the FPC 4 described later. A hook-shaped power supply guide portion 55, a mainspring mounting portion 56 for mounting a later-described rewinding spring 52 provided at one end of the pointer guide portion 54, and the other end of the pointer guide portion 54 are wound later. A take-up pulley 53 and a pulley attaching portion 57 for attaching a motor (not shown).

  The pointer guide portion 54 is provided in an arc shape along the upper edge of the arc shape of the opening 2 </ b> B provided in the dial 2. As shown in FIGS. 5 and 6, guide grooves into which an upper roller 31 and a lower roller 32 (to be described later) are fitted on both end surfaces of the guide guide portion 54 in the vertical direction (= width direction of the guide guide portion 54). 54a and 54b are provided. The guide grooves 54a and 54b are provided on the upper and lower end surfaces of the pointer guide portion 54 along the scale 2A.

  The power supply guide portion 55 is integrally provided adjacent to the pointer guide portion 54. As shown in FIGS. 4 to 6, the power supply guide portion 55 includes a bottom wall 55 </ b> A having one end in the vertical direction coupled to the pointer guide portion 54, a standing wall 55 </ b> B standing from the other vertical end of the bottom wall 55 </ b> A, a pointer The guide portion 54 is formed in a bowl shape whose front is opened.

  A flexible member (not shown) is pulled out from the rewinding spring 52, and the pulled-out end portion is fixed to the winding pulley 53 and wound. The unwinding spring 52 incorporates a spring (not shown) and biases the flexible member in the direction of unwinding. As a result, the flexible member is stretched over a pulley (not shown) in a tensioned state.

  More specifically, when the take-up pulley 53 is rotated in the take-up direction, a flexible member (not shown) is taken up by the take-up pulley 53, and the pointer 3 fixed to the flexible member travels on the guide guide portion 54 and winds. It moves toward the take-up pulley 53 side. When the motor rotates in the rewind direction, the flexible member wound around the take-up pulley 53 is unwound, and the pointer 3 fixed to the flexible member travels on the pointer guide portion 54 to rewind the spring 52. Move towards the side.

  As shown in FIGS. 4 to 7, the pointer 3 is fitted into guide grooves 54a and 54b provided in a guide guide portion 54 of the moving mechanism 5 which will be described later, and rotates along the guide grooves 54a and 54b. The roller 31 and the lower roller 32, the pointer base 33 for holding the upper roller 31 rotatably, the pointer arm 34 for holding the lower roller 32 rotatably, and held between the pointer base 33 and the pointer arm 34, the pointer base A holding spring 35 as an elastic member that urges the needle 33 and the pointer arm 34 closer to each other, a light guide pointer main body 36 attached to the pointer base 33, a light source 37 that shines the pointer main body 36, and a pointer base 33 And a holder 38 for holding the FPC 4 with one end sandwiched between the pointer base 33 and the pointer base 33.

  The upper roller 31 rotates and travels in a guide groove 54 a provided on the upper end surface of the pointer guide portion 54, and the lower roller 32 rotates and travels in a guide groove 54 b provided in the lower end surface of the pointer guide portion 54. The upper roller 31 and the lower roller 32 are provided in a substantially cylindrical shape, and a through hole (not shown) that penetrates the shaft core 39 is provided in the center thereof. The shapes of the upper roller 31 and the lower roller 32 will be described in detail later.

  As shown in FIGS. 6 and 7, the pointer base 33 hangs down from the first upper wall portion 33 </ b> A facing the upper end surface of the pointer guide portion 54, and the first upper wall portion 33 </ b> A, than the pointer guide portion 54. A hanging wall portion 33B provided on the front surface, a first bottom wall portion 33C that protrudes from the lower end of the hanging wall portion 33B toward the front surface, and faces the first upper wall portion 33A in the vertical direction, and the hanging wall portion 33B. A pair of first standing wall portions 33 </ b> D that are erected from both left and right ends toward the front. A pair of first holding pieces 33E in which the two upper rollers 31 are accommodated are provided at both ends in the left-right direction of the first upper wall portion 33A. The pair of first holding pieces 33E are provided in the front-rear direction so as to be spaced from each other. The pair of first holding pieces 33E are provided with through holes (not shown) through which the shaft core 39 passes, and the shaft core 39 is held between the pair of first holding pieces 33E. By housing the upper roller 31 between the pair of first holding pieces 33E with the upper roller 31 passed through the shaft core 39, the upper roller 31 is rotatably held by the pointer base 33. A cutout 33G for accommodating a light source 37 described later is provided at the front side end of the first upper wall portion 33A.

  As shown in FIGS. 6 and 7, the pointer arm 34 protrudes upward from the second bottom wall portion 34A facing the lower end surface of the pointer guide portion 54 and the front side end portion of the second bottom wall portion 34A. And a second standing wall portion 34B provided. A holding portion 34C in which the lower roller 32 is accommodated is provided at the rear side end portion of the second bottom wall portion 34A. The holding part 34C is provided in a cylindrical shape penetrating in the vertical direction. The holding portion 34C is provided with a through hole through which the shaft core 39 is passed, and the shaft core 39 is held in the cylindrical portion. The lower roller 32 is rotatably held by the pointer arm 34 by accommodating the lower roller 32 in the cylindrical portion of the holding portion 34C while the lower roller 32 is passed through the shaft core 39.

  The second standing wall portion 34B is provided with an accommodation hole 34D for accommodating the holding spring 35 penetrating in the front-rear direction. As shown in FIGS. 4 and 5, the second standing wall portion 34 </ b> B is positioned between the pair of first standing wall portions 33 </ b> D provided on the pointer base 33 when assembled to the pointer base 33. At this time, as shown in FIGS. 4 and 5, the first bottom wall portion 33C provided in the pointer base 33 is inserted into the accommodation hole 34D of the second standing wall portion 34B. The pressing spring 35 is formed in a coil shape and is sandwiched between a second standing wall portion 34B constituting the upper edge of the accommodation hole 34D and the first bottom wall portion 33C as shown in FIG. Thus, it is accommodated in the accommodation hole 34D. The holding spring 35 urges the pointer base 33 and the pointer arm 34 in a direction in which the upper roller 31 and the lower roller 32 approach each other, and the pointer 3 runs on the pointer guide portion 54 without rattling. In addition, a first locking arm 34E is erected on the upper end surface of the second standing wall portion 34B and is locked in a locking hole 33F provided in the hanging wall portion 33B.

  As shown in FIG. 5 and the like, the pointer main body 36 is made of a light guide material such as acrylic, and is formed in a conical shape that becomes gradually narrower as the distance from the pointer base 33 increases. The end of the pointer main body 36 on the side of the pointer base 33 is provided with a square cylindrical portion 36A. The pointer main body 36 can be attached to the pointer base 33 by inserting the front side end portion of the first upper wall portion 33A provided on the pointer base 33 into the rectangular tube portion 36A. Note that the holder 38 is attached to the first upper wall portion 33A.

  As shown in FIG. 5, the light source 37 is accommodated in the rectangular tube portion 36 </ b> A of the pointer main body 36 in a state where the pointer 3 is assembled. Thereby, when the light source 37 emits light, the pointer main body 36 is shined and visually recognized. As shown in FIG. 7, the light source 37 is supplied with power via the FPC 4.

  The FPC 4 is a flat circuit body formed in a strip shape, and is composed of two strip-shaped conductors and a pair of insulating sheets sandwiching the two conductors. As shown in FIG. 7, the FPC 4 has one end 41 and the other end 42 that protrude in opposite directions in the band width direction, and a U-shaped folded portion between the one end 41 and the other end 42. And a long portion 43. As shown in FIGS. 2 to 5, the extra length portion 43 is accommodated in a bowl-shaped power supply guide portion 55.

  Further, the one end portion 41 of the FPC 4 is pulled out from the front opening of the power feeding guide portion 55 and is disposed on the first upper wall portion 33A of the pointer base 33 as shown in FIG. A light source 37 is connected to one end 41 of the FPC 4, and the one end 41 of the FPC 4 is mounted on the first upper wall 33A so that the light source 37 is accommodated in the notch 33G. The other end portion 42 of the FPC 4 is drawn out through a hole 55C (FIG. 6) provided in the bottom wall 55A (rear surface) of the power supply guide portion 55 and connected to a power source. If the hole 55C is provided at the center in the length direction of the power supply guide portion 55, the length of the FPC 4 can be shortened.

  As shown in FIG. 7, the holder 38 is provided so as to hang down from both the left and right ends of the second upper wall 38 </ b> A that sandwiches one end 41 of the FPC 4 between the pointer base 33 and the second upper wall 38 </ b> A. And a pair of second locking arms 38B. A positioning boss 38C protruding toward the FPC 4 is provided on the second upper wall portion 38A. As shown in FIG. 6, the positioning boss 38 </ b> C is inserted into the positioning hole 41 </ b> A provided in the FPC 4 and the positioning hole 33 </ b> H provided in the pointer base 33, and the FPC 4 is sandwiched between the pointer base 33, thereby positioning the FPC 4. It can be performed. When the second upper wall portion 38A of the holder 38 is overlapped with the first upper wall portion 33A of the pointer base 33, the second locking arm 38B is engaged with a locking protrusion 33I (FIG. 7) provided on the first standing wall portion 33D. Stopped.

  According to the above-described embodiment, the hook-shaped power supply guide portion 55 provided along the movement locus of the pointer 3 is provided, and the extra length portion 43 of the FPC 4 for supplying power to the light source 37 of the pointer 3 is supplied with the power supply guide. It is accommodated in the part 55. Thus, by providing the FPC 4 with a surplus length, as shown in FIG. 2, power can be supplied to the light source 37 of the pointer 3 that moves while the other end portion 42 connected to the power source is fixed. The pointer 3 moving along the scale 2A can emit light with a simple configuration. In addition, since the extra length portion 43 of the FPC 4 is accommodated in the power supply guide portion 55, the power supply guide portion 55 restricts the movement of the FPC 4 as shown in FIG. 2, and the FPC 4 does not interfere with other components. .

  In addition, according to the above-described embodiment, the flexible electric wire is configured by the band-shaped FPC 4, and the extra length portion 43 between the one end portion 41 and the other end portion 42 is folded in a U shape so that the power supply guide portion 55. One end 41 and the other end 42 project in opposite directions in the band width direction, and the one end 41 is drawn out from the front opening of the power supply guide 55 and connected to the light source 37. The other end portion 42 is pulled out through a hole 55C provided in the back surface of the power supply guide portion 55 and connected to a power source. Accordingly, it is possible to supply power to the light source 37 of the pointer 3 that moves using the FPC 4 without applying an extra load to the FPC 4.

  Further, according to the embodiment described above, the holder 38 holds the one end 41 of the FPC 4 between the pointer base 33 and the holder 38 so that the one end 41 of the FPC 4 can be easily attached to the pointer base 33. Can be held.

  In addition, according to embodiment mentioned above, although FPC4 was used as a flexible electric wire, this invention is not limited to this. As the flexible electric wire, any flexible electric wire may be used, and an ordinary electric wire having a round cross section may be used.

  Moreover, according to embodiment mentioned above, although the moving mechanism 5 which moves the pointer | guide 3 along the scale 2A used the flexible member, this invention is not limited to this. The moving mechanism 5 may be any mechanism that moves the pointer 3 along the scale 2A. For example, a ring gear described in the related art may be used.

  Further, the above-described embodiments are merely representative forms of the present invention, and the present invention is not limited to the embodiments. That is, various modifications can be made without departing from the scope of the present invention.

2 Dial 2A Scale 3 Pointer 4 FPC (flexible wire, flat circuit body)
5 Moving Mechanism 33 Pointer Base 38 Holder 41 One End 42 Other End 43 Extra Length 36 Pointer Body 37 Light Source 55 Power Supply Guide 55C Hole

Claims (2)

In a pointer device comprising: a light guide needle body that indicates a dial plate; a pointer having a light source that shines the pointer main body; and a moving mechanism that moves the pointer along the scale of the dial plate.
A belt-like flat circuit body connected between the light source and the power source, having one end connected to the light source and the other end connected to the power source;
A hook-shaped power supply guide portion provided along the movement locus of the pointer,
The extra length part between the one end part and the other end part of the flat circuit body is folded in a U shape and accommodated in the power supply guide part,
The one end portion and the other end portion are provided so as to protrude in opposite directions in the band width direction, the one end portion is drawn out from a front opening of the power feeding guide portion and connected to the light source, and the other end portion is The pointer device is pulled out to the outside through a hole provided in the back surface of the power supply guide portion and connected to the power source . The pointer is attached to the pointer base that holds the pointer body, and the pointer base,
Guidance device according to claim 1, characterized in that it comprises a and a holder for holding sandwiching the end portion of the flat circuit body between the guide base.

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