JP5258109B2 - Waterproof structure of a meter device for vehicles - Google Patents

Description

  The present invention provides a waterproof structure for a vehicle meter device that prevents water from entering the inside of the case wall from the outside through a gap between the rotary operation knob protruding from the hole of the case wall and the hole of the case wall. In particular, the present invention relates to a waterproof structure used for a rotary knob portion of a vehicle meter device exposed to the outside, such as a two-wheeled vehicle, a snowmobile, or an open car.

  Generally, in two-wheeled vehicles, snowmobiles, four-wheeled open cars, etc., the speedometer (meter device) is also provided with a trip meter (short-range accumulator) that displays the total distance. An operation knob for returning is provided protruding from the case wall of the speedometer. In such a speedometer, moisture may adhere due to rain or mud splash, and various measures for waterproofing have been conventionally taken in order to prevent problems due to the penetration of moisture into the meter.

  An example of a structure with waterproof measures (waterproof structure) is described in Patent Document 1, for example. 3 to 6 show examples of the waterproof structure of the conventional operation knob portion described in Patent Document 1. FIG.

  In the waterproof structure shown in FIG. 3, a cap-like flexible boot 102 is provided so as to cover the entire operation knob 101 protruding from the hole 100 a of the case wall 100, and the end 102 a on the opening side of the boot 102 is connected to the case wall 100. The hole 100a is fitted in a liquid-tight manner to the periphery of the hole 100a. This waterproof structure is applied to the push-in operation knob 101 and is difficult to apply to the rotary operation knob.

  The waterproof structure shown in FIGS. 4 to 6 is applied to a rotary operation knob. In the waterproof structure shown in FIG. 4, the base end side of the operation knob 110 protruding from the hole 100 a of the case wall 100 is covered. A cylindrical boot 120 is provided, and the base end 120a of the boot 120 is liquid-tightly fitted to the peripheral edge of the hole 100a of the case wall 100, and the tip lip 121 of the boot 120 is connected to the knob shaft 111 of the operation knob 110. Is slidably brought into contact with the outer periphery of the plate. A knob 112 is provided at the tip of the knob shaft 111.

  Further, in the waterproof structure shown in FIG. 5, a cylindrical boot 130 is provided so as to cover the entire knob shaft 111 of the operation knob 110 protruding from the hole 100a of the case wall 100, and the base end portion 130a of the boot 130 is connected to the case wall. The tip lip 131 of the boot 130 is slidably brought into contact with the side surface of the knob 112 of the operation knob 110 on the case wall 100 side.

  Further, in the waterproof structure shown in FIG. 6, in addition to the example of FIG. 5, an annular wall 113 that covers the lip portion 131 is provided at a position on the outer peripheral side of the side surface of the knob portion 112 on the case wall 100 side. ing.

Japanese Patent Laid-Open No. 8-219816

  As described above, in the waterproof structure corresponding to the conventional rotary operation knob, the lip portions 121 and 131 of the boots 120 and 130 are slidably brought into contact with the surface of any part of the operation knob 110. . Therefore, although the sealing performance is high, there is a possibility that the rotational operability of the operation knob is deteriorated due to the sliding resistance, or the sealing performance is deteriorated due to wear or sag of the sliding portion.

  The present invention has been made in view of the above-described circumstances, and its purpose is to eliminate sliding resistance by eliminating a sliding portion for a waterproof seal, and to cause wear and sag due to sliding. Furthermore, it is an object of the present invention to provide a waterproof structure for a vehicle meter device that can maintain a reliable sealing performance.

In order to achieve the above-described object, a waterproof structure for a vehicle meter device according to the present invention is characterized by the following (1) to (4).
(1) A case wall having a through-hole and a rotary operation knob projecting substantially horizontally from the inside of the case wall to the outside through the hole, between the operation knob and the hole of the case wall A waterproof structure for a vehicle meter device that prevents water from entering the inside of the case wall from the outside through a gap,
The knob having a knob shaft penetrating through the hole of the case wall, a substantially cylindrical cap shape with one end closed and the other end opened, and the closed end protruded outside the case wall. A knob cap fixed to the projecting end of the shaft and having the other open end extended toward the vicinity of the outer surface of the case wall;
The hole in the case wall has an insertion hole through which the knob shaft is inserted, the base end portion is liquid-tightly fixed to the peripheral portion of the hole in the case wall, and the distal end portion is inserted into the knob cap. A knob holder having a cylindrical shaft portion is attached,
An annular draining projection that prevents water that has contacted the outer periphery of the cylindrical shaft portion from moving to the tip side of the cylindrical shaft portion at a portion inserted into the knob cap on the outer periphery of the cylindrical shaft portion of the knob holder. The portion is provided in a non-contact state with the knob cap.
(2) a case wall having a through-hole and a rotary operation knob protruding substantially horizontally from the inside of the case wall to the outside through the hole, between the operation knob and the hole of the case wall; A waterproof structure for a vehicle meter device that prevents water from entering the inside of the case wall from the outside through a gap,
The knob having a knob shaft penetrating through the hole of the case wall, a substantially cylindrical cap shape with one end closed and the other end opened, and the closed end protruded outside the case wall. A knob cap fixed to the projecting end of the shaft and having the other open end extended toward the vicinity of the outer surface of the case wall;
The hole in the case wall has an insertion hole through which the knob shaft is inserted, the base end portion is liquid-tightly fixed to the peripheral portion of the hole in the case wall, and the distal end portion is inserted into the knob cap. A knob holder having a cylindrical shaft portion is attached,
The portion of the inner periphery of the knob cap of the operation knob that faces the cylindrical shaft portion of the knob holder inserted into the knob cap is exposed to moisture that contacts the inner periphery of the knob cap. An annular draining convex portion that prevents movement to the position is provided in a non-contact state with the cylindrical shaft portion.
(3) In the waterproof structure of the vehicle meter device having the configuration (1) or (2),
The knob holder has a combination of a front side holder that has the cylindrical shaft portion and is arranged on the outer surface side of the case wall, and a back side holder that is arranged on the inner surface side of the case wall,
When the front side holder and the back side holder are coupled to each other through a hole in the case wall with the case wall being sandwiched from the front side and the back side, the knob holder including the front side holder and the back side holder has the case wall It is liquid-tightly fixed to the periphery of the hole.
(4) In the waterproof structure of the vehicle meter device having the configuration of (3) above,
An engagement hook and an engagement recess that are engaged with each other through a hole in the case wall are provided on one and the other of the front side holder and the back side holder, respectively, and the opposing surface of the front side holder and the outer surface of the case wall or the The engagement hook and the engagement recess are engaged with each other with an O-ring interposed in at least one of the opposing surfaces of the back side holder and the inner surface of the case wall so as to surround the hole of the case wall. By combining, the knob holder comprising the front holder and the back holder is fixed in a liquid-tight manner in the hole of the case wall.

According to the waterproof structure having the configuration of (1) above, since the tip end portion of the cylindrical shaft portion of the knob holder having the knob shaft insertion hole is inserted into the opening side of the knob cap, moisture from the outside directly It does not hit the tip of the knob holder. In addition, since an annular draining convex portion is provided on the outer periphery of the cylindrical shaft portion of the portion inserted into the knob cap, the water contacting the cylindrical shaft portion travels along the outer periphery of the cylindrical shaft portion and is annularly drained. There is no fear of moving to the tip side from the convex portion, and the water whose intrusion is prevented by the annular draining convex portion falls by its own weight. Therefore, water can be prevented from entering the inside of the case wall from the tip of the knob holder through the insertion hole of the knob holder. In addition, since the base end of the cylindrical shaft portion of the knob holder is liquid-tightly fixed to the hole in the case wall, the water that has traveled through the case wall enters the inside of the case wall through the gap in the mounting portion of the knob holder. I don't have to. In addition, since the annular draining projection provided on the knob holder and the knob cap are kept in a non-contact state, compared to the case of waterproof sealing with the boot lip (sliding part) as in the prior art, There is no wear or sag of parts, the waterproofness is not lowered, and the operability is not lowered because there is no sliding resistance.
According to the waterproof structure having the configuration of (2) above, since the tip end portion of the cylindrical shaft portion of the knob holder having the knob shaft insertion hole is inserted into the opening side of the knob cap, moisture from the outside is directly applied. It does not hit the tip of the knob holder. In addition, since an annular draining convex portion is provided on the inner periphery of the knob cap at the portion facing the cylindrical shaft portion of the inserted knob holder, the moisture that has contacted the inner periphery of the knob cap will pass through the inner periphery of the knob cap. Accordingly, there is no fear of moving to the tip side from the annular draining convex portion, and the water whose intrusion is prevented by the annular draining convex portion falls by its own weight. Therefore, water can be prevented from entering the inside of the case wall from the tip of the knob holder through the insertion hole of the knob holder. In addition, since the base end of the cylindrical shaft portion of the knob holder is liquid-tightly fixed to the hole in the case wall, the water that has traveled through the case wall enters the inside of the case wall through the gap in the mounting portion of the knob holder. I don't have to. In addition, since the annular draining projections provided on the knob holder and the knob cap are kept in a non-contact state, compared to the case of waterproof sealing with the boot lip (sliding part) as in the prior art, There is no wear or sag of parts, the waterproofness is not lowered, and the operability is not lowered because there is no sliding resistance.
According to the waterproof structure having the configuration (3), the knob holder is divided into two parts, a front side holder and a back side holder, and is attached to the hole in the case wall. In addition, in order to couple | bond a front side holder and a back side holder, adhesion | attachment can also be utilized besides using the engagement means provided beforehand in both.
According to the waterproof structure having the above configuration (4), the front side holder and the back side holder are coupled by the engagement of the engagement hook and the engagement recess, so that the knob holder can be easily fixed to the hole of the case wall with one touch. . Further, since the gap between the hole of the case wall and the knob holder is sealed by the O-ring arranged on at least one of the outer surface or the inner surface of the case wall, the knob holder can be attached to the case wall without looseness by utilizing the elasticity of the O-ring. Can be fixed in the hole.

  According to the present invention, since the annular draining convex portion is provided at the portion inserted into the inside of the knob cap on the outer periphery of the cylindrical shaft portion of the knob holder, the case wall of the case wall passes through the insertion hole of the knob holder from the tip of the knob holder. Water can be prevented from entering the inside. Also, since the base end of the knob holder is fixed in a liquid-tight manner to the hole in the case wall, water that has traveled through the case wall does not enter the inside of the case wall through the gap in the mounting portion of the knob holder. . In addition, since the annular draining convex part and the knob cap are kept in a non-contact state, there is no wear or sag of parts due to sliding, waterproof performance is not lost, and there is no sliding resistance. There is no decline in sex.

  The present invention has been briefly described above. Further, details of the present invention will be further clarified by reading through the modes for carrying out the invention described below with reference to the accompanying drawings.

It is a disassembled perspective view of embodiment of this invention. (A) is sectional drawing which shows the principal part structure of the embodiment, (b) is an enlarged view of the IIb part of (a), The arrow in (b) figure shows the path | route which water W contacts and flows down . It is sectional drawing which shows the waterproof structure of the conventional push-in type operation knob. It is sectional drawing which shows an example of the waterproof structure of the conventional rotary operation knob. It is sectional drawing which shows the other example of the waterproof structure of the conventional rotary operation knob. It is sectional drawing which shows the further another example of the waterproof structure of the conventional rotary operation knob.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an exploded perspective view of a waterproof structure of a meter device for a vehicle according to the embodiment, FIG. 2A is a cross-sectional view showing a configuration of a main part of the embodiment, and FIG. 1B is an enlarged view of a portion IIb in FIG. is there. In addition, the arrow in FIG.2 (b) has shown the path | route which the water W contacts and flows down.

  The meter device shown in FIG. 1 is a vehicle speedometer device applied to, for example, a motorcycle and the like, and includes a meter device body 10, a transparent cover (also referred to as “meter lens”) 18, and a rotary operation knob 22. Etc. The transparent cover 18 is fitted into the meter case 13 that forms the housing of the meter device body 10 and constitutes a part of the case wall. Further, as shown in FIG. 2, a dial 12 and a circuit board 11 are provided inside the meter case 13. A rotary switch 15 operated by an operation knob 22 is mounted on the circuit board 11, and a speed pointer, an odometer, a trip meter, etc. (not shown) are assembled on the dial 12.

  The operation knob 22 protrudes substantially horizontally from the inside of the transparent cover 18 through a hole 19 formed through a part of the transparent cover 18. The waterproof structure of the present embodiment is for preventing water from entering from the outside to the inside of the transparent cover 18 through the gap between the rotary operation knob 22 and the hole 19 of the transparent cover 18. .

  The operation knob 22 has a knob shaft 23 that passes through the hole 19 of the transparent cover 18 and a knob cap 24 having a substantially cylindrical cap shape with one end 24a closed and the other end 24b opened. The knob cap 24 is fixed to the protruding end of the knob shaft 23 whose closed end 24 a protrudes to the outside of the transparent cover 18, and the opened other end 24 b extends toward the vicinity of the outer surface 18 a of the transparent cover 28. . Further, the proximal end portion of the knob shaft 23 located inside the transparent cover 18 is connected to the knob base 21 so that when the operation knob 22 is rotated, the operation portion 16 of the rotary switch 15 is rotated together via the knob base 21. It has become.

  A knob holder 50 is attached to the hole 19 of the transparent cover 18. The knob holder 50 is composed of a combination of two parts, a front side holder 30 disposed on the outer surface 18 a side of the transparent cover 18 and a back side holder 40 disposed on the inner surface 18 b side of the transparent cover 18.

  The front side holder 30 has a substantially cylindrical bar shape, and has an insertion hole 32 penetrating in the axial direction at the center. The front holder 30 has a cylindrical shaft portion 31 on the distal end side in the axial direction, a base portion 33 having a larger diameter than the cylindrical shaft portion 31 on the proximal end side, and further engages with the proximal end side. A hook 35 is provided. The engaging hook 35 protrudes in the opposite direction to the cylindrical shaft portion 31 and is configured to be inserted into the transparent cover 18 through the hole 19 of the transparent cover 18.

  Further, an end surface 33a of the base portion 33 that contacts the outer surface 18a of the transparent cover 18 is an inclined surface that matches the inclination of the transparent cover 18, and the axial direction of the front holder 30 is substantially horizontal regardless of the inclination of the transparent cover 18. It can be kept. An annular groove 37 is provided on the end surface of the base portion 33, and an O-ring 34 is fitted in the annular groove 37. When the end surface 33 a of the base portion 33 is pressed against the outer surface 18 a of the transparent cover 18, the O-ring 34 seals the gap between the hole 19 of the transparent cover 18 and the knob holder 50.

  The back side holder 40 has a substantially cylindrical shape, and has an engagement recess 45 that engages with the engagement hook 35 of the front side holder 30 inserted through the hole 19 of the transparent cover 18 in the inner peripheral portion. Yes. The end surface 44 of the back side holder 40 that contacts the inner surface 18b of the transparent cover 18 is also an inclined surface that matches the inclination of the transparent cover 18, and the axial direction of the back side holder 40 can be kept substantially horizontal regardless of the inclination of the transparent cover 18. It is like that.

  Then, the front side holder 30 and the back side holder 40 are coupled to each other by the engagement of the engagement hook 35 and the engagement recess 45 with the transparent cover 18 sandwiched from the front side and the back side. The knob holder 50 is formed in a liquid-tight manner on the peripheral edge of the hole 19 of the transparent cover 18 via an O-ring 34.

  In this state where the knob holder 50 is attached to the transparent cover 18, the distal end portion of the cylindrical shaft portion 31 of the front side holder 30 is inserted into the knob cap 4, and the knob cap 24 on the outer periphery of the cylindrical shaft portion 31 is inserted. An annular draining convex portion (returning portion) 38 for preventing moisture that has contacted the outer periphery of the cylindrical shaft portion 31 from moving to the distal end side of the cylindrical shaft portion 31 is provided in a portion inserted into the inside of the cylindrical shaft portion 31. Is provided. In this case, unlike the lip portion of the conventional boot, the annular draining convex portion 38 is provided in a non-contact state with the knob cap 24.

Next, the operation will be described.
According to the waterproof structure configured as described above, the distal end portion of the cylindrical shaft portion 31 of the knob holder 50 having the insertion hole 32 of the knob shaft 23 is inserted into the opening side (the other end 24 b side) of the knob cap 24. Therefore, the moisture W from the outside does not directly hit the tip end portion of the cylindrical shaft portion 31 of the knob holder 50. Further, since the annular draining convex portion 38 is provided on the outer periphery of the cylindrical shaft portion 31 at the portion inserted into the knob cap 24, the cylindrical shaft portion 31 is indicated by an arrow in FIG. Even if the water W in contact with the water moves along the outer periphery of the cylindrical shaft portion 31 and moves to the tip side from the annular draining convex portion 38, the annular draining convex portion 38 can prevent it. Accordingly, the moisture W that has been prevented from entering by the annular draining convex portion 38 falls by its own weight, and water enters the transparent cover 18 from the tip of the knob holder 50 through the insertion hole 32 of the knob holder 50. Can be prevented.

  In the above-described embodiment of the present invention, the configuration in which the annular draining convex portion (return portion) 38 is formed on the outer periphery of the cylindrical shaft portion 31 has been described, but the same draining convex portion is provided on the inner periphery of the knob cap 24. The structure formed in this may be sufficient. That is, the moisture that has contacted the inner periphery of the knob cap 24 is formed on the inner periphery of the knob cap 24 of the operation knob 22 at a portion facing the cylindrical shaft portion 31 of the knob holder 50 inserted into the knob cap 24. An annular draining convex portion that prevents movement to the tip end side of 24 may be provided in a non-contact state with the cylindrical shaft portion 31. Even in this configuration, even if the moisture that has contacted the knob cap 24 moves along the inner periphery of the knob cap 24 and moves to the tip side from the annular draining convex portion, the annular draining convex portion prevents it. can do.

  Further, since the base portion 33 on the proximal end side of the cylindrical shaft portion 31 of the knob holder 50 is liquid-tightly fixed to the hole 19 of the transparent cover 18, the water W transmitted through the transparent cover 18 is attached to the knob holder 50. The inside of the transparent cover 18 does not enter through the gap.

  Further, since the annular draining convex portion 38 provided on the knob holder 50 and the knob cap 24 are kept in a non-contact state, as compared with the conventional case of waterproof sealing with the lip (sliding portion) of the rubber boot, There is no wear or sag of parts due to sliding, waterproof performance is not lowered, and operability is not deteriorated because there is no sliding resistance.

  Moreover, in this embodiment, since the knob holder 50 is divided into two parts, the front-side holder 30 and the back-side holder 40, and attached to the hole 19 of the transparent cover 18, it can be attached more easily and reliably than the conventional rubber boot.

  Further, in the present embodiment, the front side holder 30 and the back side holder 40 are coupled by the engagement of the engagement hook 35 and the engagement recess 45, so that the knob holder 50 can be easily inserted into the hole 19 of the transparent cover 18 with one touch. Can be fixed. Further, since the O-ring 34 made of an elastic material is interposed between the outer surface 18 a of the transparent cover 18 and the front side holder 30, the knob holder 50 can be attached to the hole of the transparent cover 18 without looseness using the elasticity of the O-ring 34. 19 can be fixed.

  As for other details, the knob cap 24 is formed in a taper shape that is slightly expanded from the closed one end 24a side to the other end 24b side, and the inner peripheral surface is horizontal. Is inclined. In particular, the inner peripheral surface located at the lowermost end during rotation is inclined downward toward the opening side (the other end 24b side). Therefore, even if the water W that has fallen from the draining convex portion 38 hangs down on the inner peripheral surface of the knob cap 24, the water W does not flow inside but falls outside.

  Further, the insertion hole 32 of the front holder 30 is also tapered so that the distal end 32a side has a smaller diameter than the proximal end side, and the clearance with the knob shaft 23 is set to be smaller on the distal end 32a side. . Thus, the knob shaft 23 can be supported so as not to rattle.

  As described above, according to the waterproof structure of the present embodiment, water can be prevented from entering the inside of the meter device main body 10, so that the mounting portion of the operation knob 22 can be used during car washing or rainy weather driving. It is possible to prevent water from entering the rust and causing rust in the cloud of the transparent cover 18 and the mechanism in the meter device main body 10. In particular, in a vehicle traveling off-road, not only water but also mud containing water can be prevented from entering.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimensions, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

  For example, in the above embodiment, the O-ring 34 is provided on the outer surface 18a side of the transparent cover 18, but it may be provided on the outer surface 18a side of the transparent cover 18 or on both sides. Further, the liquid tightness may be maintained by filling the gap with a sealing agent instead of the O-ring 34.

  Moreover, in the said embodiment, although the coupling | bonding of the front side holder 30 and the back side holder 40 is performed by engagement of the engagement hook 35 and the engagement recessed part 45 (locking means), the front side holder 30 and the back side holder 40 are used with the adhesive agent. May be joined. In particular, when an adhesive is used, since the adhesive can also serve as a sealing agent, the use of the O-ring 34 can be stopped.

  In the above embodiment, the knob holder 50 is divided into the front side holder 30 and the back side holder 40. However, the knob holder 50 can be assembled to the transparent cover 18 as a one-piece part.

18 Transparent cover (case wall)
18a outer surface 18b inner surface 19 hole 22 operation knob 23 knob shaft 24 knob cap 24a one end 24b other end 30 front side holder 31 cylindrical shaft portion 32 insertion hole 33 base portion 34 O ring 35 engagement hook 38 draining convex portion 40 back side holder 45 engagement Recess 50 Knob holder

Claims (4)

A case wall having a through-hole, and a rotary operation knob protruding substantially horizontally from the inside of the case wall to the outside through the hole, and through the gap between the operation knob and the hole of the case wall. A waterproof structure for a vehicle meter device that prevents water from entering the inside of the case wall from the outside,
The knob having a knob shaft penetrating through the hole of the case wall, a substantially cylindrical cap shape with one end closed and the other end opened, and the closed end protruded outside the case wall. A knob cap fixed to the projecting end of the shaft and having the other open end extended toward the vicinity of the outer surface of the case wall;
The hole in the case wall has an insertion hole through which the knob shaft is inserted, the base end portion is liquid-tightly fixed to the peripheral portion of the hole in the case wall, and the distal end portion is inserted into the knob cap. A knob holder having a cylindrical shaft portion is attached,
An annular draining projection that prevents water that has contacted the outer periphery of the cylindrical shaft portion from moving to the tip side of the cylindrical shaft portion at a portion inserted into the knob cap on the outer periphery of the cylindrical shaft portion of the knob holder. A waterproof structure for a vehicle meter device, characterized in that the portion is provided in a non-contact state with the knob cap. A case wall having a through-hole, and a rotary operation knob protruding substantially horizontally from the inside of the case wall to the outside through the hole, and through the gap between the operation knob and the hole of the case wall. A waterproof structure for a vehicle meter device that prevents water from entering the inside of the case wall from the outside,
The knob having a knob shaft penetrating through the hole of the case wall, a substantially cylindrical cap shape with one end closed and the other end opened, and the closed end protruded outside the case wall. A knob cap fixed to the projecting end of the shaft and having the other open end extended toward the vicinity of the outer surface of the case wall;
The hole in the case wall has an insertion hole through which the knob shaft is inserted, the base end portion is liquid-tightly fixed to the peripheral portion of the hole in the case wall, and the distal end portion is inserted into the knob cap. A knob holder having a cylindrical shaft portion is attached,
The portion of the inner periphery of the knob cap of the operation knob that faces the cylindrical shaft portion of the knob holder inserted into the knob cap is exposed to moisture that contacts the inner periphery of the knob cap. A waterproof structure for a vehicular meter device, characterized in that an annular water draining convex portion for preventing movement is provided in a non-contact state with the cylindrical shaft portion. The knob holder includes the cylindrical shaft portion and a front side holder disposed on the outer surface side of the case wall, and a back side holder disposed on the inner surface side of the case wall,
When the front side holder and the back side holder are coupled to each other through a hole in the case wall with the case wall being sandwiched from the front side and the back side, the knob holder including the front side holder and the back side holder has the case wall The waterproof structure for a vehicle meter device according to claim 1, wherein the waterproof structure is liquid-tightly fixed to a peripheral portion of the hole.   An engagement hook and an engagement recess that are engaged with each other through a hole in the case wall are provided on one and the other of the front side holder and the back side holder, respectively, and the opposing surface of the front side holder and the outer surface of the case wall or the The engagement hook and the engagement recess are engaged with each other with an O-ring interposed in at least one of the opposing surfaces of the back side holder and the inner surface of the case wall so as to surround the hole of the case wall. The waterproof structure for a vehicle meter device according to claim 3, wherein the knob holder including the front holder and the rear holder is fixed in a liquid-tight manner to the hole in the case wall.

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