JP2008267811A - Pointer body driver and pointer type instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pointer body driver which can be used in common for dial plates different in array shape of indexes, and a pointer type instrument using the pointer body driver. <P>SOLUTION: In the pointer body driver 2 having a driver body 4 arranged for a dial plate 3 so as to indicate an index 3a arrayed on the dial plate 3, a rail section 6 arranged along the array of indexes 3a in parallel with the dial plate 3, a flexible member 5 to which the pointer body 4 is fixed and which is drawn around along the rail section 6, and a drive 7 for moving the flexible member 5 so that the pointer body 4 comes to an indicating position responsive to a measured amount along the array of the indexes 3a, the rail section 6 is deformable along the array of the indexes 3a. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a pointer type instrument mounted on a vehicle or the like and a pointer body driving device used in the pointer type instrument.

  It has been proposed to display a plurality of indicators in the display area in the instrument in order to increase the efficiency of the arrangement space when the pointer-type instrument such as a speedometer or an engine speed meter is installed in a vehicle or the like. .

  For example, in the pointer-type meter 100 shown in Patent Document 1, as shown in FIGS. 9 and 10, a circuit board 101, a display device 102 arranged on the circuit board 101, and the periphery of the display device 102 are arranged. A case body 103 arranged so as to cover, an indicator plate 104 arranged in front of the case body 103, a flexible member 105 positioned in front of the indicator plate 104, and a flexible member 105 A holder 106 that is fixed, a pointer 107 that is fixed to the flexible member 105 via the holder 106, a guide body 109 that moves and guides the flexible member 105, and a covering that covers a required area including the front side of the guide body 109 A panel 110.

A part of the flexible member 105 is encased in the guide body 109 and is routed so as to extend along the indicator portion 104a of the indicator plate 104, and the other part is a drive gear interlocked with the drive device 108. G and a plurality of tension rollers R are installed. Then, when the flexible member 105 is moved in the longitudinal direction by the driving device 108, the pointer 107 fixed to the flexible member 105 via the holder 106 is moved along the index portion 104a to indicate the index. The measured value was displayed to the user.
JP-A-2005-43287

  However, in the pointer-type instrument disclosed in Patent Document 1, the flexible member 105 is routed, that is, the length of the flexible member 105, the shape of the guide body 109 that moves and guides the flexible member 105, the arrangement of the tension roller R, and the like. However, since it is configured to match the indicator plate 104, it is necessary to redesign the pointer drive structure when the size of the indicator plate 104 or the arrangement shape of the indicator portion 104a is changed. For this reason, it is impossible to make the pointer drive structure common between the pointer-type meters having different shapes, which hinders the reduction in the development cost and the manufacturing cost of the pointer-type meters.

  Accordingly, an object of the present invention is to provide a pointer body driving device that can be used in common for dials having different array shapes of indicators, and a pointer-type instrument using the pointer body driving device.

  In order to solve the above-mentioned problem, the pointer body drive device according to claim 1 made according to the present invention includes a pointer body disposed with respect to the dial so as to indicate an index arranged on the dial, A rail portion arranged in parallel with the dial plate along the array of indicators, a flexible member to which the pointer body is fixed and routed along the rail portion, and the pointer body according to a measurement amount And a drive unit that moves the flexible member along the array of the indicators so as to be positioned at the indicated position, wherein the rail portion is deformable along the array of the indicators. It is characterized by.

  The pointer body driving device according to claim 2 is the pointer body driving device according to claim 1, wherein the rail portion is configured so that the flexible member is routed around the rail portion. An urging member for urging the member toward the rail portion is provided.

  The pointer body driving device according to claim 3 is the pointer body driving device according to claim 1 or 2, wherein the rail portion includes a plurality of first rotating bodies that move and guide the flexible member, and the plurality of the plurality of rotating bodies. And a support member that pivotally supports the first rotating body and positions the first rotating body along the array of the indicators.

  The pointer body driving device according to claim 4 is the pointer body driving device according to claim 2 or 3, wherein the biasing member is a second rotating body pivotally supported by the rail portion. It is characterized by being.

  A pointer-type meter according to claim 5 is characterized by having the pointer body driving device according to any one of claims 1 to 4 and a dial plate on which the indicators are arranged. .

  According to the first aspect of the present invention, the pointer body driving device according to the present invention can be deformed along the arrangement of the indicators on the dial, so that the plurality of dials having different shapes and the arrangement of the indicators Can be arranged. Therefore, it can be used in common for the plurality of dials, and it is possible to reduce the new development cost of the pointer body driving device adapted to each dial and to reduce the manufacturing cost due to the mass production effect. .

  According to the second aspect of the invention, in addition to the effect of the first aspect of the invention, the flexible member is biased toward the rail portion so that the flexible member is drawn along the periphery of the rail portion. Therefore, the flexible member is not drawn away from the rail portion. For example, when the rail portion is curved in an arc shape, the flexible member passing through the inner side of the arc shape is urged along the rail portion by the urging member without being drawn around in a string shape. Therefore, the rail portion, that is, the area required for disposing the pointer body driving device can be reduced, and other members can be disposed in the vicinity of the pointer body driving device. The area where the driving device is disposed can be used effectively.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the plurality of first rotating bodies for moving and guiding the flexible member, and the plurality of first rotating bodies as shafts. And a supporting member that is positioned so as to follow the arrangement of the indicators on the dial plate, so that the flexible member routed along the rail portion moves smoothly along the arrangement of the indicators. be able to. Therefore, the frictional resistance applied to the flexible member and the rail portion is reduced, and problems associated with the frictional resistance such as wear of each member can be eliminated or reduced.

  According to invention of Claim 4, in addition to the effect of invention of Claim 2 or 3, it has the 2nd rotation body pivotally supported by the rail part as an urging | biasing member. Therefore, the flexible member routed along the rail portion can be smoothly moved along the rail portion. Therefore, the frictional resistance applied to the flexible member and the rail portion is reduced, and problems associated with the frictional resistance such as wear of each member can be eliminated or reduced.

  According to the fifth aspect of the present invention, the pointer-type meter according to the present invention includes the pointer body driving device according to any one of the first to fourth aspects. The new development cost can be reduced, and the manufacturing cost can be reduced due to the mass production effect. Therefore, the cost for the pointer-type instrument can be reduced.

Example 1
Next, a first embodiment according to the present invention will be described with reference to FIGS.

  The pointer-type measuring instrument 1 includes a dial plate 3 on which indicators 3a are arranged, and a pointer body driving device 2 disposed behind the dial plate 3. Further, the pointer-type instrument 1 is stored in an instrument case (not shown) having a transparent cover disposed on the front surface to be protected from dust and the like, and is mounted on a vehicle or the like.

  The dial plate 3 is formed in a semicircular shape using a synthetic resin as a base material, and an opening 3b having a shape similar to that of the dial plate 3 is provided at the center thereof. A display device (not shown) such as a liquid crystal panel is disposed behind the dial plate 3, and the display device is visually recognized by the user through the opening 3b. In addition, indicators 3 a for displaying measurement values together with the pointer body 4 are arranged in an arc along the outer edge of the dial 3. For the dial plate 3, for example, a transparent synthetic resin plate is used. A light-shielding ink is printed on the surface excluding the indicator 3a, and illuminated by a light source arranged on the back surface, whereby the indicator 3a emits light, Display to the user.

  The pointer body driving device 2 includes a pointer body 4 disposed with respect to the dial 3 so as to indicate the index 3a, and a rail portion 6 disposed in parallel with the dial 3 along the array of the indexes 3a. The pointer body 4 is fixed and the wire 5 is routed along the rail portion 6 and the wire 5 is moved along the array of the indicators 3a so that the pointer body 4 is positioned at the indicated position corresponding to the measurement amount. And a driving unit 7 to be operated.

  The pointer body 4 is formed using a synthetic resin as a base material, and extends vertically downward from the center part of one long side of the base part 4a on the rectangular plate and the base part 4a (downward direction in FIG. 1). And the pointer 4b. The base portion 4 a is curved according to the curvature of the rail portion 6 so that the lower surface portion thereof is in contact with the rail portion 6. Further, the base portion 4a is provided with a protrusion 4c formed in a strip shape along the longitudinal direction at the center of the lower surface (that is, the surface in contact with the rail portion 6). By being fitted in the central gap of the rail portion 6, the rail portion 6 is moved along the rail portion 6 without being separated from the rail portion 6.

  The rail portion 6 includes a plurality of joint members 10, 20, 30 that are made of a synthetic resin as a base material and are connected to each other so as to be able to rotate. Specifically, the node member 30 is disposed at the tip of the rail portion 6. Thereafter, the node members 20 and the node members 10 are alternately connected, and the node member 10 located at the base end is attached to the arm portion 53 of the drive unit 7. A plurality of guide pulleys 41, 42, and 43 that smoothly move and guide the wire 5 are disposed along the periphery of the rail portion 6. The rail portion 6 is fixed to the instrument case with the side portion of the rail portion 6 (that is, the side surfaces of 10R, 20R, and 30R) abutting or close to the dial plate 3, and the upper surface portion of the rail portion 6 is the dial plate. 3 are curved in a circular arc shape along the outer edge of 3 (ie, the index 3a). Further, on the rail portion 6, the pointer body 4 is disposed with the base portion 4 a in contact with the upper surface portion of the rail portion 6 so that the pointer 4 b is positioned in front of the dial 3.

  The node member 10 is configured by a pair of node plates 10L and 10R formed in an isosceles triangle shape being opposed to each other and sandwiching a plurality of guide pulleys for moving and guiding the wire 5 therebetween. Yes. The joint plate 10L is provided with a connecting hole 11 for pivotally connecting the joint member 20 to each base angle (ie, two equal corners), and the apex angle (ie, two equal angles). A cylindrical guide shaft 12a for pivotally supporting the small guide pulley 42 is disposed at a corner). The joint plate 10R is provided with a joint hole (not shown) for pivotally connecting the joint shaft to the joint member 20 (or the drive unit 7) at the bottom corner of the joint plate 10R. A guide shaft hole (not shown) for fitting the tip of the guide shaft 12a and fixing the node plates 10L and 10R relative to each other is provided at the corner.

  The node member 20 is configured by a pair of node plates 20L and 20R formed in an isosceles triangle shape being opposed to each other and sandwiching a plurality of guide pulleys for moving and guiding the wire 5 therebetween. Yes. The node plate 20L is provided with a column-shaped connecting shaft 21a that rotatably connects the node members 10 and 30 and pivotally supports the large guide pulley 41 at the bottom corners of the node plate 20L. A cylindrical guide shaft 22a for pivotally supporting the small guide pulley 42 is disposed at the apex angle portion. The node plate 20R is provided with a connecting shaft hole (not shown) for fitting the tip of the connecting shaft 21a and fixing the node plates 20L and 20R relative to each other at the bottom corner of the node plate 20R. Further, a guide shaft hole (not shown) for fitting the tip of the guide shaft 22a and fixing the node plates 20L and 20R relative to each other is provided.

  The node member 30 is configured by a pair of node plates 30L and 30R formed in an isosceles triangle shape being opposed to each other and sandwiching a plurality of guide pulleys for moving and guiding the wire 5 therebetween. Yes. The node plate 30L is provided with a columnar tip shaft 33a that pivotally supports the tip guide pulley 43 at the bottom corner portion located on the tip side of the rail portion 6, and at the other bottom corner portion, A connecting hole 31 for connecting the node member 20 so as to be rotatable is provided, and a columnar guide shaft 32a for rotatably supporting the small guide pulley 42 is disposed at the apex corner portion thereof. The joint plate 30R has a tip shaft hole (not shown) for fitting the tip of the tip shaft 33a to the bottom corner located on the tip side of the rail portion 6 and fixing the joint plates 30L and 30R relative to each other. The other bottom corner is provided with a connection hole (not shown) through which the connection shaft 21a is inserted so as to connect the node member 20 in a rotatable manner. A guide shaft hole (not shown) for fitting the tip of 32a and fixing the node plates 30L and 30R relative to each other is provided. The node members 10, 20, and 30 correspond to the support members in the claims. Further, the shape and structure of each node member are not limited to the above, and any structure may be used as long as it can be deformed along the index 3a.

  The large guide pulley 41 has a shape in which a flange is provided at each end of each cylinder. A wire that is pivotally supported by inserting a connecting shaft 21a into the cylinder and passed between the flanges. 5 is smoothly moved and guided. The small guide pulley 42 is formed in a cylindrical shape, and is rotatably supported by inserting guide shafts 12a, 22a, and 32a into the cylinder to smoothly move and guide the wire 5, and the wire 5 is urged along the rail portion 6. The tip guide pulley 43 has a shape in which a flange is provided at each end of each cylinder. A wire that is pivotally supported by inserting a tip shaft 33a into the cylinder and passed between the flanges. 5 is smoothly moved and guided. Each guide pulley is formed using a synthetic resin as a base material. The large guide pulley 41 corresponds to a plurality of first rotating bodies in the claims, and the small guide pulley 42 corresponds to a second rotating body in the claims, that is, an urging member.

  The wire 5 corresponds to the flexible member of the claims. For example, the wire 5 is a cord-like member having a cloth material woven with glass fiber as a core material and covered with a rubber-based material, and is flexible and non-stretchable. It is a member having. Further, the wire 5 is fixed to the base portion 4a of the pointer body 4 by attachment means (not shown) (for example, an adhesive).

  The drive unit 7 includes a case 51, a cover 54 attached to the front surface of the case 51, and a motor 8 attached to the rear surface of the case 51. The case 51 and the cover 54 are provided with a pair of arm portions 53 that support the rail portion 6.

  The motor 8 is connected to a control unit (not shown), and is an existing one that rotates the drive shaft 8a based on a signal generated from the control unit in accordance with a measurement amount. A plurality of brackets 8b are provided on the outer periphery of the container of the motor 8, and are fixed to the case 51 with screws or the like (not shown).

  The case 51 includes a housing portion 52 whose periphery is partitioned by a wall portion, and an arm portion 53 made of a flat plate connected to the outer surface of the wall portion of the housing portion 52. The housing 52 is provided with a drive shaft hole 52a, a tension pulley shaft 52b, an auxiliary pulley shaft 52c, and a sensor hole 52d. The drive shaft 8a of the motor 8 is inserted through the drive shaft hole 52a, and a drive pulley 55 around which the wire 5 is wound is fixed to the tip of the drive shaft 8a. Then, when the motor 8 rotates the drive shaft 8a according to the measured amount, the drive pulley 55 rotates and the wire 5 is moved in the longitudinal direction. The tension pulley shaft 52b rotatably supports a tension pulley 57 described later. The auxiliary pulley shaft 52c pivotally supports a disk-shaped auxiliary pulley 56a provided with a pair of flanges along the circumference.

  The pair of arm portions 53 are a pair of flat plate portions provided on the case 51 and the cover 54, and are formed to support the rail portion 6. Specifically, the arm portion 53 of the case 51 has a columnar connection shaft 53a to which the node member 10 located at the base end of the rail portion 6 is rotatably connected, and a cylindrical shape that moves and guides the wire 5. Cylindrical guide shafts 53b and 53c, on which auxiliary pulleys 56b and 56c are pivotally supported, are disposed, and an arm portion 53 of a cover 54 has a connection shaft 53a and guide shafts 53b and 53c, respectively. A connecting hole and a guide shaft hole (not shown) for fitting the tip of the guide shaft are provided.

  The tension pulley 57 is formed in a disc shape, and a pair of flanges are provided along the circumference thereof, and the wire 5 is wound along a groove formed by the pair of flanges. As shown in FIG. 5, on the surface side of the tension pulley 57 facing the cover 54 (the cover side in FIG. 5), a spring storage portion 57a hollowed in a rectangular parallelepiped shape according to the shape of the spring 58, and the spring storage portion 57a A spring fixing portion 57b erected in a columnar shape at one end of the tension pulley 57 and a wire fixing portion 57c which is located slightly inside from the outer edge of the tension pulley 57 and is hollowed into a cylindrical shape. Further, a striped pattern 57d used for detecting the amount of rotation of the tension pulley 57 is provided on the surface side (the case side in FIG. 5) of the tension pulley 57 that faces the case 51 (that is, the inner surface of the housing portion 52). .

  The spring 58 is an elastic member in which a wire is wound spirally, and one end of the spring 58 is fixed to the spring fixing portion 57b and stored in the spring storage portion 57a. One end of the wire 5 is attached to the other end of the spring 58, and the other end of the wire 5 is attached to the wire fixing portion 57c. That is, since one end of the wire 5 is attached to the tension pulley 57 via the spring 58, an appropriate tension is always applied to the wire 5 by the spring 58. In addition to the spring, other materials may be used as long as they have elasticity and can give tension to the wire.

  As shown in FIG. 5, the stripe pattern 57 d is alternately painted in white and black, and when the tension pulley 57 is rotated, it passes across the sensor hole 52 d provided in the case 51, The number of passages and the direction of passage are detected by an optical sensor (not shown), and the amount of rotation of the tension pulley 57, that is, the amount of movement of the wire 5, is detected based on the detected information and fed back to the controller. In addition to the stripe pattern, for example, unevenness may be provided to detect the rotation amount of the tension pulley. The light sensor is, for example, a light-emitting element and a light-receiving element that are arranged in the same direction, receives reflected light of light emitted by the light-emitting element by the light-receiving element, and receives the color or light of the region where the light is reflected. The distance to the reflected object is detected. In addition, as long as the rotation amount of the pulley can be detected instead of the optical sensor, a sensor of another type such as a magnetoelectric conversion element type may be used.

  The case 51, the cover 54, the drive pulley 55, the auxiliary pulleys 56a, 56b, 56c, and the tension pulley 57 are formed using a synthetic resin as a base material. Further, among the members described above, those formed using a synthetic resin as a base material are not limited to the synthetic resin, and any material can be used as long as the shape and function of each member can be realized. May be used.

  In this embodiment, the drive pulley and the tension pulley are provided separately, but the wire may be moved by attaching the tension pulley directly to the drive shaft of the motor. In that case, since the number of drive pulleys can be reduced, the pointer body drive device can be further reduced in size, and the cost of components can be reduced.

  Next, assembly of the pointer body driving device 2 and the pointer-type meter 1 will be described with reference to FIGS.

  First, the tip guide pulley 43 is attached to the tip shaft 33a of the node plate 30L, and the small guide pulley 42 is attached to the guide shaft 32a. Then, one connecting shaft 21a of the node plate 20L is inserted into the connecting hole 31 of the node plate 30L, the large guide pulley 41 is attached to the one connecting shaft 21a, and the small guide pulley 42 is attached to the guide shaft 22a. Then, the other connecting shaft 21a of the node plate 20L is inserted into the one connecting hole 11 of the node plate 10L, a large guide pulley 41 is attached to the other connecting shaft 21a, and a small guide pulley 42 is attached to the guide shaft 12a. Install. Then, one connecting shaft 21a of a node plate 20L different from the node plate 20L is inserted into the other connecting hole 11 of the node plate 10L, and a large guide pulley 41 is attached to the one connecting shaft 21a. Thereafter, the node plates 20L and the node plates 10L are alternately connected until reaching the base end portion of the rail portion 6.

  Next, the connecting shaft 53 a provided on the arm portion 53 of the case 51 is inserted into the connecting hole 11 of the node plate 10 </ b> L located at the base end of the rail portion 6, thereby connecting the rail portion 6 to the case 51. Then, the drive shaft 8a of the motor 8 is inserted into the drive shaft hole 52a provided in the case 51, and the motor 8 is fixed to the case 51 by the bracket 8b. Then, the drive pulley 55, the auxiliary pulleys 56a, 56b, 56c, and the tension pulley 57 are attached to a shaft portion that pivotally supports each pulley provided in the case 51.

  Next, one end of the wire 5 is attached to the wire fixing portion of the tension pulley 57. Then, the wire 5 is wound around the circumference of the tension pulley 57 several times, and is passed through between the auxiliary pulley 56a and the drive pulley 55 and between the auxiliary pulley 56b and the auxiliary pulley 56c. Pull along the pulley 41 to the tip guide pulley 43. Then, it is turned back at the tip guide pulley 43, passed between the small guide pulley 42 and the large guide pulley 41, returned to the case 51, wound around the drive pulley 55 several times, and further wound around the tension pulley 57 again several times. The other end of the wire 5 is attached to one end of the spring 58. Then, the spring 58 is stored in the spring storage portion 57a, and the other end of the spring 58 is attached and fixed to the spring fixing portion 57b. At this time, the wire 5 is wound around the tension pulley 57 with a length equal to or longer than the amount of movement of the pointer body 4, and the wire 5 pulled out from the tension pulley 57 during the movement of the pointer body 4 has an end portion thereof. It has been adjusted so as not to reach.

  Next, the base portion 4a of the pointer body 4 is attached to the wire 5, and the pointer body 4 is disposed in contact with the upper surface of each node member. Then, the node plate 30R, the node plate 20R, and the node plate 10R are attached to the corresponding node members in order from the front end side of the rail portion 6, and thereafter, the node plate 20R and the node plate 10R are alternately attached, and finally the cover. 54 is attached to the case 51, and the pointer body driving device 2 is assembled. Then, by bending the rail portion 6 along the outer edge of the dial plate 3 and fixing the side portion of the pointer body driving device 2 to the rear surface of the dial plate 3, the pointer type instrument 1 is assembled. .

  The pointer-type meter 1 is stored in a meter case (not shown) and mounted on a vehicle or the like, and the motor 8 of the pointer body driving device 2 is connected to a control device (not shown). Then, based on the signal output from the control device, the motor 8 rotates the drive pulley 55 to move the wire 5, and the pointer body 4 fixed to the wire 5 moves accordingly, and the measured amount is obtained. By displaying the corresponding index, it is displayed to the user.

  According to the first embodiment described above, the pointer body driving device 2 is constituted by the joint members 10, 20, and 30 that are rotatably connected to each other, and is deformed along the arrangement of the indicators on the dial. Therefore, it is possible to dispose a plurality of dials having different shapes and index arrangements. Therefore, it can be used in common for the plurality of dials, so that it is possible to reduce the new development cost of the pointer body driving device adapted to each dial and to reduce the manufacturing cost due to the mass production effect. .

  Further, the pointer body driving device 2 includes the small guide pulley 42 that biases the wire 5 against the rail portion 6 so that the wire 5 is routed along the periphery of the rail portion 6. In the case where 6 is curved in an arc shape, the wire 5 passing through the inner side of the arc shape is drawn along the rail portion 6 by the small guide pulley 42. Therefore, it becomes possible to reduce the area required for the arrangement of the rail portion 6, that is, the pointer body driving device 2, and it is possible to arrange other members close to the pointer body driving device 2, for example, In the area of the opening 3b of the dial 3, another display device can be arranged. Therefore, it is possible to effectively use the area where the pointer body driving device 2 is disposed. Further, since the small guide pulley 42 is rotatably disposed on the node members 10, 20, 30, the wire 5 drawn along the rail portion 6 is urged along the rail portion 6. However, it can move smoothly. Therefore, the frictional resistance applied to the wire 5 and the rail portion 6 is reduced, and problems associated with the frictional resistance such as wear of each member can be eliminated or reduced.

  Moreover, since the pointer body driving device 2 has a plurality of large guide pulleys 41 for moving and guiding the wires 5, the wires 5 routed along the rail portion 6 are arranged along the array of the indicators 3a. It can move smoothly. Therefore, the frictional resistance applied to the wire 5 and the rail portion 6 is reduced, and problems associated with the frictional resistance such as wear of each member can be eliminated or reduced.

  Further, since the tension pulley 57 has the spring 58 for attaching the wire 5 therein, it is not necessary to separately provide a tension mechanism for preventing the wire 5 from sagging, and the pointer body driving device 2 can be downsized. This makes it possible to effectively use the area where the pointer body driving device 2 is disposed.

  Further, since the tension pulley 57 has a striped pattern 57d, and the amount of rotation of the tension pulley 57 measured by the sensor is fed back to the control device, the amount of rotation of the tension pulley 57, that is, the movement of the wire 5 The amount can be corrected, and the measured value can be displayed more accurately.

  Further, since the pointer-type meter 1 includes the pointer body driving device 2, the development cost and the manufacturing cost can be reduced, and problems associated with frictional resistance such as wear of each member can be eliminated or reduced. it can.

(Example 2)
Next, a second embodiment according to the present invention will be described with reference to FIGS.

  The pointer-type meter 71 includes a dial plate 73 on which an index 73a is arranged, and a pointer body driving device 72 disposed behind the dial plate 73.

  The dial 73 is formed in a semicircular shape using a synthetic resin as a base material, and an opening 73b having a shape similar to that of the dial 3 is provided at the center thereof. In addition, an indicator 73a for displaying a measured value together with the pointer body 74 is arranged in an arc shape along the inner edge of the dial plate 3, that is, the opening 73b.

  The pointer body driving device 72 includes a pointer body 74 disposed on the dial 73 so as to indicate the index 73a, and a rail portion 6 disposed in parallel with the dial 73 along the array of the indicators 73a. The wire 5 is moved along the array of the indicators 73a so that the pointer body 74 is fixed and the wire 5 is routed along the rail portion 6 and the pointer body 74 is positioned at the indicated position corresponding to the measurement amount. And a driving unit 7 to be operated. In addition, about the rail part 6, the wire 5, and the drive part 7, it is the same as 1st Embodiment mentioned above, The same code | symbol is attached | subjected to the same part and description is abbreviate | omitted.

  The pointer body 74 is formed using a synthetic resin as a base material, and extends vertically (upward in FIG. 6) vertically from a base portion 74a on a rectangular plate and a central portion of one long side of the base portion 74a. And a pointer 74b. The base portion 74 a is curved according to the curvature of the rail portion 6 so that the lower surface portion thereof is in contact with the rail portion 6. In addition, a protrusion 74c formed in a band shape along the longitudinal direction of the base portion 74a is disposed at the center of the lower surface (that is, the surface that contacts the rail portion 6). By being fitted in the central gap of the rail portion 6, the rail portion 6 is moved along the rail portion 6 without being separated from the rail portion 6.

  In the pointer-type instrument 71, the rail body 6 is curved so that the pointer body driving device 72 is along the inner edge of the dial plate 73, that is, the edge of the opening 73b. The dial 73 is fixed and assembled so as to indicate the index 73a from the inner edge side.

  According to the second embodiment described above, in addition to the effects of the first embodiment, the dial plate 73 and the pointer body driving device 72 cause the pointer body 74 to indicate the index 73a from the inner edge side of the dial 73. Therefore, the pointer body 74 moves along the inner edge of the dial 73. Therefore, a display form different from that of the first embodiment can be provided to the user.

(Example 3)
Next, a third embodiment according to the present invention will be described with reference to FIG.

  The pointer-type meter 81 includes a first dial plate 83A on which a first index 83Aa is arranged, a first pointer body driving device 2A disposed behind the first dial plate 83A, and a second index 83Ba. The second dial plate 83B is arranged, and the second pointer body driving device 2B is arranged behind the second dial plate 83B. The first pointer body driving device 2A and the second pointer body driving device 2B are the same as the pointer body driving device 2 of the first embodiment, and the same parts are denoted by the same reference numerals and description thereof is omitted. To do.

  The first dial plate 83A is formed in an arc shape, and a semicircular opening 83Ab is provided at the center thereof. A first index 83Aa is arranged along the outer edge of the first dial plate 83A. The second dial plate 83B is formed in a semicircular shape slightly smaller than the opening 83Ab, and is disposed in the opening 83Ab so as to be flush with the first dial 83A. A second indicator 83Ba is arranged along the outer edge of the second dial plate 83B.

  The pointer-type meter 81 has the first pointer body driving device 2A on the outer edge of the first dial plate 83A so that the pointer body 4A indicates the first indicator 83Aa from the outer edge of the first dial plate 83A. The rail portion 6A is curved along the side, and the side portion of the first pointer body driving device 2A is fixed in contact with the rear surface of the first dial plate 83A, and the pointer body 4B is fixed to the second dial plate 83B. The second pointer body driving device 2B bends the rail portion 6B along the outer edge of the second dial plate 83B so that the second index 83Ba is indicated from the outer edge, and the second pointer body driving device 2B side. It is assembled by being fixed to the instrument case with the portion abutting on or close to the rear surface of the second dial plate 83B.

  According to the above-described third embodiment, in addition to the effects of the first embodiment, the pointer body driving devices 2A and 2B are provided, so that the same pointer body driving device is provided in one instrument display region. A plurality of displays can be performed using a plurality of. Therefore, the cost of the pointer body driving device can be reduced by sharing the members, and a pointer-type meter that can display a plurality of measured values can be provided at low cost.

  In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

The perspective view of the pointer type instrument of the 1st Embodiment of this invention. The perspective view of the pointer body drive device of a 1st embodiment of the present invention. The front view of the pointer body drive device shown in FIG. FIG. 3 is an exploded three-dimensional view of the pointer body driving device shown in FIG. 2. The front view of the tension pulley used in the pointer body drive device shown in FIG. The perspective view of the pointer type instrument of the 2nd Embodiment of this invention. The perspective view of the pointer body drive device of the 2nd Embodiment of this invention. The front view of the pointer type instrument of the 3rd Embodiment of this invention. Sectional drawing of the conventional pointer type instrument. The front view of the conventional pointer type instrument.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pointer type meter 2 Pointer body drive device 3 Dial 3a Index 4 Pointer body 5 Wire (flexible member)
6 Rail part 7 Drive part 10, 20, 30 Node member (support member)
41 Large guide pulley (first rotating body)
42 Small guide pulley (biasing member, second rotating body)
43 Tip guide pulley

Claims (5)

A pointer body arranged with respect to the dial so as to indicate an indicator arranged on the dial, a rail portion arranged in parallel with the dial along the arrangement of the indicator, and the pointer And a flexible member that is routed along the rail portion, and a drive unit that moves the flexible member along the array of the indicators so that the pointer body is positioned at an indicated position corresponding to a measurement amount. In a pointer body driving device having
The pointer body driving device according to claim 1, wherein the rail portion is deformable along the array of the indicators.   The rail portion includes an urging member for urging the flexible member toward the rail portion so that the flexible member is drawn around the periphery of the rail portion. Item 2. The pointer body driving device according to Item 1.   The rail portion includes a plurality of first rotating bodies that move and guide the flexible member, and a support member that pivotally supports the plurality of first rotating bodies so as to follow the array of the indicators. The pointer body driving device according to claim 1, wherein the pointer body driving device is provided.   The pointer body driving device according to claim 2, wherein the urging member is a second rotating body pivotally supported by the rail portion.   A pointer-type instrument comprising: the pointer body driving device according to any one of claims 1 to 4; and a dial plate on which the indicators are arranged.

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