JP4834322B2 - Meter device - Google Patents

Description

  The present invention relates to a meter device, and more particularly to an improvement in a dial plate assembly structure in the meter device.

For example, Non-Patent Document 1 discloses a method for fixing a dial plate to a case without a separate part in a meter device. 9, the dial 41 is aligned with the light diffusing plate 42, and the dial assembly notch 41a on the dial 41 side is aligned with the dial assembly shaft 43a on the case 43 side, as shown in FIG. The dial plate mounting shaft 43a is slid in the direction of the arrow, and the dial plate fixing hole 41b below the dial plate 41 is assembled and fixed to the dial plate fixing boss 43b below the case 43. At the same time, the pointer hole 41c at the center of the dial 41 is slid and fixed to the dial fitting portion 42a at the center of the light diffusion plate 42.
Japan Society for Invention and Innovation Technical Report No. 2004-500610 Name “Dial plate assembly structure” Date of issue 2004-02-05

  As another fixing method, there is a fixing method as shown in FIG. In FIG. 10, the meter device includes a case 52 having an engaging claw 52a and two positioning pins 52b and 52c formed substantially opposite to each other via the engaging claw 52a, and a character assembled to the case 52. And a plate 51. The dial 51 is provided with a display design, a pointer hole 51a is formed at the center, and two assembly holes 51b and 51c are formed at substantially opposite positions on the outer periphery. In the dial 51, the inner periphery of the pointer hole 51a is engaged with the engaging claw 52a of the case 52, and the two assembly holes 51b and 51c are respectively connected to the two positioning pins 52b and 52c of the case. By being inserted, it is assembled and fixed to the case 52 without separate parts.

  In this fixing method, if the dial shape and case shape are finally in the shape necessary for assembly, the dial 51 is slightly bent during the assembly as shown in FIG. Even if the process occurs, the portion A shown in FIG. 10A (the portion having the dial 51 by hand) is almost the same height as the dial 51 and the front surface of the case 52. The work of bending the plate 51 can be performed without any problem. That is, the assembling work can be performed without difficulty by flexing the dial a little with the sense of the hand while adjusting the A portion by hand.

  However, as shown in FIG. 11, the above-described fixing method is difficult for a meter device having a step between the dial and the front surface of the case. In FIG. 11, the meter device includes a recess 52A formed so as to have a mounting portion 52d in the depth direction from the front surface of the case 52, an engaging claw 52a provided on the mounting portion 52d, and an engaging claw 52a. A case 52 having two positioning pins 52b and 52c formed at positions substantially opposed to each other via the claw 52a is provided. The dial 51 is provided with a display design, a pointer hole 51a is formed at the center, and two assembly holes 51b and 51c are formed at substantially opposite positions on the outer periphery. In the dial 51, the inner periphery of the pointer hole 51a is engaged with the engagement claw 52a of the case 52 in the mounting portion 52d of the recess 52A of the case 52, and the two assembly holes 51b and 51c are By being inserted into the two positioning pins 52b and 52c of the case 52, they are assembled and fixed to the case without separate parts.

  Thus, when there is a step between the front face of the dial 51 and the case 52, the assembly height of the dial 51 is lower than that of the front face of the case 52, so the vicinity of the outer periphery of the dial 51 shown in FIG. I can't put my hands on. Therefore, in the assembling process in which the dial 51 is bent by the same method as in FIG. 10, it is difficult to assemble the dial.

  In view of the above-described conventional problems, an object of the present invention is to provide a meter device that can easily assemble a dial even when there is a step between the dial and the front of the case.

  The meter device according to the first aspect of the present invention includes a dial plate on which a display design is applied, a pointer hole is formed at the center, and two assembly holes are formed at substantially opposite positions on the outer periphery; A recess for accommodating the dial is formed, and a mounting portion for mounting the dial is formed on an inner wall forming the recess, and engages with an inner periphery of the pointer hole in the vicinity of the center of the recess. A mounting portion formed on the mounting portion, and two positioning pins each inserted into the two mounting holes of the dial. Is formed so that it can slide when the dial is placed, and the engaging claw is provided at a position to engage with the inner periphery of the pointer hole by sliding movement of the dial. One of the two assembly holes is connected to the inner periphery of the engagement claw and the pointer hole. Wherein the insertion of the positioning pins are provided on possible position after.

According to a second aspect of the present invention, in the meter device according to the first aspect, the mounting portion is configured such that a part of the outer periphery of the dial plate is engaged with the inner periphery of the pointer hole and the engaging claw. When the dial is placed so as to be in contact with the inner wall, a dimensional relationship is set such that a predetermined gap is provided between the tip of the engaging claw and the edge of the pointer hole of the dial. It is characterized by being.

  According to the first aspect of the present invention, when the dial is fixed to the case without a separate part, the dial can be easily assembled even when there is a step between the case front and the dial fixing position. The dial can be assembled without spending time on the dial assembly work.

According to the second aspect of the present invention, the dimensional relationship between the placement portion for placing the dial plate, the inner periphery of the pointer hole to be engaged, and the tip of the engagement claw is appropriately set. The dial can be slid and moved securely with the engaging claws while being placed on the placing portion.

  Embodiments of the present invention will be described below with reference to the drawings.

  1 and 2 are a front view and an exploded perspective view, respectively, of a meter device according to an embodiment of the present invention. Here, the case where the meter device is in the form of an in-vehicle combination meter in which a plurality of meters are combined will be described.

  The meter device 1 includes a tachometer 2, a speedometer 3, and a composite meter 4 each having a substantially circular analog type meter form. The composite meter 4 has a configuration in which a water temperature gauge unit 5, a turbometer unit 6, and a fuel meter unit 7 are grouped together. An LCD (Liquid Crystal Display) 8 is disposed in the lower opening in the speedometer 3.

  The tachometer 2, the speedometer 3, and the composite meter 4 have dial plates 12, 13, and 14 on which display designs and design patterns such as numbers, letters, and characters are applied, respectively. Each of the dial plates 12, 13, and 14 is formed in a plate shape made of, for example, a polycarbonate sheet or the like, and has a white display design or design pattern on a dark (preferably black) surface.

  The facing plate 9 forming the front side of the meter device 1 is made of synthetic resin of dark color (preferably black), and has display windows 9a formed in shapes corresponding to the tachometer 2, the speedometer 3 and the composite meter 4. 9b, 9c. This facing plate 9 is integrated with a back case 10 that constitutes the side surface and the back surface side of the meter device 1, and forms the outer shape of the front surface and the front surface of the meter device 1. Further, in front of the tachometer 2, the speedometer 3, and the composite meter 4, there are a front case assembled to the back case 10 and a front glass fixed to the front case, which are not shown here. The front case is arranged in a dark (preferably black) color tone.

  Recesses 10a, 10b, and 10c for the tachometer 2, the speedometer 3, and the composite meter 4 are formed on the front surface of the back case 10, respectively. The recesses 10 a and 10 c are formed so as to have a placement portion on the inner wall in the depth direction from the front surface of the back case 10. The dial plates 12 and 14 are respectively disposed on the placement portion. The dial 13 is disposed on the front surface of the back case 10 so as to cover the recess 10b.

  On the front face of each dial plate 12, 13, and 14, the tachometer 2, the speedometer 3, and the pointers 15, 16, 17, and 18 for the water temperature gauge section 5, the turbometer section 6 and the fuel gauge section 7 of the composite meter 4. , 19 are arranged respectively. A movement (not shown) made up of a stepper motor or the like for rotationally driving the pointers 15, 16, 17, 18, 19 is disposed on the back side of each dial plate 12, 13, 14. Further, on the back side of each of the dial plates 12, 13, and 14, there are LEDs for supplying light to the dial plates 12, 13, and 14 and the pointers 15, 16, 17, 18, and 19 for illumination. A light source (not shown) is arranged.

  Further, the tachometer 2, the speedometer 3 and the composite meter 4 have ring-shaped members 22, 23 and 24 so as to go around the display designs of the dial plates 12, 13 and 14, respectively. Each of the ring-shaped members 22, 23, and 24 is integrally formed by being connected to each ring portion with ring portions 22a, 23a, and 24a that are fitted into the inner periphery of the display windows 9a, 9b, and 9c of the facing plate 9, respectively. The display windows 9a, 9b, 9c have flange portions 22b, 23b, 24b that are in contact with the inner peripheral back side.

  Each ring-shaped member 22, 23, 24 is subjected to, for example, a light color (preferably silver) plating process. Therefore, each of the light-colored ring-shaped members 22, 23, 24 emphasizes the boundary between the dial plate 9 and the dial plates 12, 13, 14, which are arranged in a dark color tone, and forms the contour of each meter. ing.

  With the configuration described above, the tachometer 2 and the composite meter 4 are visually recognized by the dials 12 and 14 being retracted in the depth direction by the height of the ring portions 22a and 24a of the ring-shaped members 22 and 24 from the front surface of the facing plate 9. At the same time, the speedometer 3 has a three-dimensional feel because the dial 13 is visually recognized on the same plane as the front surface of the back case 10.

  In such a meter device 1, the present invention is implemented by the tachometer 2 and the composite meter 4, and here, as an example, the improvement of the dial plate assembly structure according to the present invention in the tachometer 2 will be described in detail below. The description of the composite meter 4 is omitted.

  FIG. 3 is a perspective view showing the dial 12 for the tachometer 2. The dial 12 is provided with a display design 12a, a pointer hole 12b is formed at the center, and two assembly holes 12c and 12d are formed at substantially opposite positions on the outer periphery. The assembly hole 12c is formed in a long hole shape that allows the dial 12 to slide when the positioning pin is inserted. As will be described later, the assembly hole 12d is provided at a position where the positioning pin 31b can be inserted after the engagement claw 34 and the inner periphery of the pointer hole 12b are engaged.

  FIG. 4 is a perspective view showing the recess 10 a of the back case 10 for the tachometer 2. The recess 10 a is formed on the inner wall in the depth direction from the front surface of the back case 10 so as to have a placement portion 31 having a surface parallel to the front surface of the back case 10. Two positioning pins 31a and 31b are integrally formed on the mounting portion 31 so as to protrude to substantially opposing positions. The recess 10a is also formed with a mounting portion 32 that protrudes from the center bottom thereof and has a flat surface that is flush with the mounting portion 31. The mounting portion 32 protrudes from the through hole 33 of the drive shaft of the movement that rotationally drives the pointer 15 and the mounting portion 32 forming the inner periphery of the through hole 33 toward the upper side of the concave portion 10a and its tip. Is provided with an engaging claw 34 formed to have a shape bent substantially at a right angle. The engaging claw 34 is provided at a position where the tip engages with the inner periphery of the pointer hole 12 b by the sliding movement of the dial 12.

  The dial 12 is placed on the placement portions 31 and 32. The placement portion 31 is formed in a size that allows sliding movement on a plane when the dial 12 is placed.

  Next, an assembling method of the dial 12 in the tachometer 2 will be described with reference to FIGS.

  First, as shown in FIG. 5A, the dial 12 is placed on the placement portions 31 and 32 from above the recess 10a without applying force, and a part of the outer periphery of the dial 12 is engaged with the engaging claw 34. It is made to contact | connect the inner wall facing the front-end | tip 34a. At this time, the dial 12 is placed on the two positioning pins 31a and 31b, and the tip 34a of the engaging claw 34 is positioned in the pointer hole 12b. At this time, as shown in FIG. 5 (B), the mounting portion 31 has a distal end 34a (C portion) of the engaging claw 34 located in the pointer hole 12b and an inner periphery of the pointer hole 12b of the dial 12. Dimensional relationship is set such that a predetermined gap (E) (for example, about 1 mm or less) is provided between the edge (D portion).

  Next, as shown in FIG. 6A, the dial 12 is slightly slid and the positioning pin 31a is inserted into the long hole-like assembly hole 12c. At this time, as shown in FIG. 6B, the dial 12 is such that the inner peripheral edge (F portion) of the long hole-like assembly hole 12c is substantially in contact with the outer peripheral portion (G portion) of the positioning pin 31a. Move to. However, the assembly hole 12c does not serve as a guide for the sliding movement of the dial 12, and the positioning pin 31a may be inserted after the sliding movement.

  Next, as shown in FIG. 7, in order to establish a height relationship that allows the front end 34a of the engagement claw 34 to be engaged with the inner peripheral edge of the pointer hole 12b of the dial 12, the vicinity of the pointer hole 12b Then press the dial 12 with your finger.

  Next, as shown in FIG. 8, the dial 12 is slid with a finger until the tip 34a of the engagement claw 34 is engaged with the inner peripheral edge of the dial hole 12b of the dial 12, and then the inner periphery While adjusting the position of the dial 12 with a finger while the tips of the engaging claws 34 are engaged, the other assembly hole 12d is aligned with the position of the positioning pin 31b, and the positioning pin 31b is inserted. The assembly of the dial 12 is completed.

In this way, when the dial 12 is fixed to the case 10 without separate parts, and the meter device 1 has a step between the dial 12 and the front surface of the case 10, the dial 12 is assembled to the back case 10. By facilitating the fixing work, it is possible to assemble the meter without taking time for the work of assembling the dial 12. In addition, since the dimensional relationship between the placement portion 31 on which the dial 12 is placed, the inner periphery of the pointer hole 12b to be engaged, and the tip 34a of the engagement claw 34 is appropriately set, the placement portion The dial 12 can be slid in a state where it is placed on 31 and can be securely fixed by the engaging claw 34.

  As described above, the best mode of the present invention has been described, but the present invention is not limited to this, and various modifications and applications are possible.

  For example, in the above-described best mode, the improvement of the dial assembling work in the tachometer 2 is described, but the same improvement is performed in the composite meter 4 as well.

It is a front view of the meter apparatus which concerns on embodiment of this invention. It is a disassembled perspective view of the meter apparatus which concerns on embodiment of this invention. It is a perspective view which shows the dial for tachometers in the meter apparatus which concerns on embodiment of this invention. It is a perspective view which shows the recessed part of the case for tachometers in the meter apparatus which concerns on embodiment of this invention. (A) And (B) is the schematic sectional drawing and the partial expanded sectional view explaining the assembly method of the dial plate in a tachometer, respectively. (A) And (B) is the schematic sectional drawing and the partial expanded sectional view explaining the assembly method of the dial plate in a tachometer, respectively. It is a schematic sectional drawing explaining the assembly | attachment method of the dial plate in a tachometer. It is a schematic sectional drawing explaining the assembly | attachment method of the dial plate in a tachometer. (A) and (B) are respectively a plan view before assembly and a plan view after assembly for explaining an example of a method of assembling a dial in a conventional meter device, (C) is a partially enlarged plan view, and (D) ) Is a partially enlarged perspective view. (A) is a schematic plan view for explaining another example of a dial plate assembling method in a conventional meter device, (B) is a sectional view taken along the line dd, and (C) is an abbreviated process during assembly. It is sectional drawing. (A) is a schematic plan view for explaining still another example of a dial plate assembling method in a conventional meter device, and (B) is a cross-sectional view taken along the line ee.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Meter apparatus 10 Back case 10a Recessed part 31 Placement part 31a Positioning pin 31b Positioning pin 34 Engaging claw 12 Dial 12a Display design 12b Pointer hole 12c Assembly hole 12d Assembly hole

Claims (2)

A dial having a display design, a pointer hole formed in the center, and two assembly holes formed at substantially opposite positions on the outer periphery;
A recess for accommodating the dial is formed on the front surface, and a mounting portion for mounting the dial is formed on the inner wall forming the recess, and is engaged with the inner periphery of the pointer hole near the center of the recess. A case formed with an engaging claw to be fixed,
Two positioning pins formed in the mounting portion, each inserted into the two assembly holes of the dial,
The mounting portion is formed to be slidable when the dial is placed,
The engaging claw is provided at a position to engage with the inner periphery of the pointer hole by sliding movement of the dial,
One of the two assembly holes is provided at a position where the positioning pin can be inserted after the engagement claw and the inner periphery of the pointer hole are engaged. The meter device according to claim 1,
When the dial is placed so that a part of the outer circumference of the dial plate is in contact with the inner wall before the engagement of the inner circumference of the pointer hole and the engagement claw, The meter device is characterized in that a dimensional relationship is set such that a predetermined gap is provided between a tip of the engaging claw and an edge of the pointer hole of the dial.

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