JP5345883B2 - Gas exhaust device - Google Patents

Description

  The present invention relates to a gas discharge device. More specifically, the present invention relates to a gas exhaust device that exhausts exhaust gas from a vehicle when inspecting the running performance of the vehicle.

Conventionally, an inspection device for inspecting the running performance of a completed vehicle is provided in a vehicle production line. The inspection apparatus is provided with a gas exhaust device for exhausting the exhaust gas of the vehicle to be inspected out of the factory.
The gas discharge device includes a discharge duct extending along the floor surface, a box-shaped duct main body connected to the upper surface of the discharge duct, a bellows-shaped duct connected to the upper surface of the duct main body and capable of extending vertically. And a lid portion provided at the upper end of the bellows-like duct and having a suction port formed on the side surface thereof, and an elevating mechanism for raising and lowering the lid portion (see Patent Document 1). It has become.

  According to this gas exhaust device, the lid portion is lowered so that the upper surface of the lid portion is flush with the floor surface of the exhaust gas exhaust device, and in this state, the vehicle is placed on the floor surface of the exhaust gas exhaust device. And let it pass over the lid. Next, the lifting / lowering device is driven to raise the lid, the bellows-shaped duct is extended upward, and the suction port of the lid is opposed to the tail pipe of the vehicle.

JP 2002-286264 A

  However, in the above gas discharge device, a lid and a duct main body are accommodated on the discharge duct, so that a wide space is required from the upper surface of the duct to the floor surface of the gas discharge device. Therefore, there has been a problem that the gas discharge device becomes large and it takes time to install the vehicle inspection device.

  An object of this invention is to provide the gas discharge apparatus which can implement | achieve thickness reduction.

  A gas discharge device (for example, an exhaust unit 90 described later) of the present invention has a duct (for example, a later-described duct 92 described later) that extends along the floor surface and has an opening (for example, an opening 921 described later) formed on the upper surface. A substantially rectangular lid that covers the opening of the duct (for example, a lid 93 that will be described later), and one side (for example, a side 93A that will be described later) of the lid is a rotational axis (for example, a rotational shaft that will be described later). 931) and a drive mechanism (for example, drive mechanism 94 described later) for opening and closing the lid, and folding from the two sides (for example, sides 93B and 93C described later) adjacent to one side of the lid to the opening. And a possible lateral wall (for example, a lateral wall 932 described later).

  According to the present invention, since the lid is provided on the upper surface of the duct and the lid is opened and closed by the drive mechanism, the lid and the duct main body are not accommodated on the duct as in the prior art. The space from the upper surface to the floor on which the vehicle travels can be narrowed, and the gas discharge device can be made thinner.

  In this case, the drive mechanism includes a cylinder mechanism (for example, a cylinder mechanism 942 to be described later) that moves a rod (for example, a rod 941 to be described later) back and forth in a substantially horizontal direction, and a link that connects the tip of the rod and the lid portion. It is preferable to include a member (for example, a link member 943 described later).

  According to this invention, the drive mechanism is constituted by the cylinder mechanism and the link member, and the rod of the cylinder mechanism is advanced and retracted in the horizontal direction. Therefore, the gas discharge device can be made thinner than when the cylinder mechanism is expanded and contracted in the vertical direction.

  In this case, it is preferable that the link member and the lid portion are fixed so as to form a substantially square shape in a side view.

  According to the present invention, the link member and the lid portion are fixed so as to form a substantially square shape in a side view. Therefore, the drive mechanism does not greatly expand in the horizontal direction, and a compact configuration is obtained.

  According to the present invention, since the lid is provided on the upper surface of the duct and the lid is opened and closed by the drive mechanism, the lid and the duct main body are not accommodated on the duct as in the prior art. Since the space from the upper surface to the floor on which the vehicle travels can be reduced, the gas discharge device can be made thinner.

1 is a side view showing an overall configuration of a vehicle inspection apparatus to which a gas discharge device according to an embodiment of the present invention is applied. It is a side view of the front-wheel support unit of the vehicle inspection apparatus which concerns on the said embodiment. It is a top view of the front-wheel support unit of the vehicle inspection apparatus which concerns on the said embodiment. It is a longitudinal cross-sectional view of the guide mechanism of the vehicle inspection apparatus which concerns on the said embodiment. It is a top view of the rear-wheel support unit of the vehicle inspection apparatus which concerns on the said embodiment. It is a side view of the gas discharge apparatus which concerns on the said embodiment. It is a cross-sectional view of the gas discharge device according to the embodiment. It is a figure for demonstrating operation | movement of the gas discharge apparatus which concerns on the said embodiment.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a side view showing an overall configuration of a vehicle inspection apparatus 1 to which a gas discharge apparatus according to an embodiment of the present invention is applied.

  The vehicle inspection device 1 inspects the vehicle 10. The vehicle 10 to be inspected includes a left front wheel 11, a right front wheel 12, a left rear wheel 13, and a right rear wheel 14.

  The vehicle inspection apparatus 1 is accommodated in a front wheel support unit 20 that supports the front wheels 11 and 12 of the vehicle 10, a front fixed floor portion 30 disposed in front of the front wheel support unit 20, and the front fixed floor portion 30. The moving mechanism 40 that moves the front wheel support unit 20 along the floor, the rear wheel support unit 50 that supports the rear wheels 13 and 14 of the vehicle 10, and the front wheel support unit 20 and the rear wheel support unit 50 are disposed. The central fixed floor portion 60, the drive mechanism 70 that is housed in the central fixed floor portion 60 and drives the rear wheel support unit 50, and the exhaust unit as a gas discharge device disposed behind the rear wheel support unit 50. 90.

FIG. 2 is a side view of the front wheel support unit 20, and FIG. 3 is a plan view of the front wheel support unit 20.
The front wheel support unit 20 includes a pair of left front rollers 21A and 21B that support the left front wheel 11, a pair of right front rollers 22A and 22B that support the right front wheel 12, and these rollers 21A, 21B, 22A, and 22B. A roller support 23 that is rotatably supported and movable on the floor surface, a front moving floor 24 that extends forward from the roller support 23, a central moving floor 25 that extends rearward from the roller support 23, and a roller Rotation suppression mechanisms 28 and 29 provided on the support portion 23 and suppressing the rotation of the rollers 21A, 21B, 22A, and 22B.

The pair of left front rollers 21A and 21B includes a first roller 21A and a second roller 21B located behind the first roller 21A.
Each of the rollers 21 </ b> A and 21 </ b> B includes a cylindrical roller body 213 extending in the vehicle width direction, and a rotation shaft 214 that passes through the central axis of the roller body 213.

The pair of right front rollers 22A and 22B includes a first roller 22A and a second roller 22B located behind the first roller 22A.
The rollers 22A and 22B have the same configuration as the rollers 21A and 21B, respectively.

The roller support portion 23 is provided on a pair of frame-shaped frames 231 formed in a rectangular frame shape, two connection frames 232 that connect the pair of frame-shaped frames 231, and lower surfaces of the four corners of the frame-shaped frame 231. Eight wheel 233 having the vehicle width direction as a rotation axis, eight bearing devices 234 provided on the frame-like frame 231 and rotatably supporting the rotation shaft 214 of the rollers 21A, 21B, 22A, 22B, A transmission mechanism 26 that connects the first roller 21A and the second roller 21B, which are the left front roller, and a transmission mechanism 27 that connects the first roller 22A and the second roller 22B, which are the right front roller, are provided.
The roller support portion 23 can travel on the floor surface by rotating eight wheels 233.

The transmission mechanism 26 connects the first roller 21A and the second roller 21B, which are left front rollers, so as to rotate in the same direction. The transmission mechanism 26 includes a gear 261 provided at the inner end of the rotation shaft 214 of the first roller 21A, a gear 262 provided at the inner end of the rotation shaft 214 of the second roller 21B, and the two gears 261, A gear 263 interposed between the gears 261 and 262 and a bearing device 264 that rotatably supports the gear 263.
Accordingly, when one of the first roller 21A and the second roller 21B rotates, this rotation is transmitted to the other roller via the gears 261, 262, and 263, and the other roller is transmitted to the one roller. It will rotate in the same direction as the roller.

  The transmission mechanism 27 connects the first roller 22A and the second roller 22B, which are right front rollers, so as to rotate in the same direction, and has the same configuration as the transmission mechanism 26.

  Returning to FIG. 1, the front moving floor portion 24 includes a support column 241 erected at the front end of the frame-shaped frame 231 of the roller support unit 23, a frame 242 provided at the upper end of the support column 241, and the frame 242. And a flooring 243 stretched on the upper surface.

  The central moving floor portion 25 is stretched on a support column 251 erected on the rear end of the frame-shaped frame 231 of the roller support unit 23, a frame 252 provided on the upper end of the support column 251, and an upper surface of the frame 252. A flooring 253.

The front fixed floor portion 30 includes a plurality of support posts 31 erected on the floor surface, and a frame 32 provided on the upper ends of the support posts 31.
On the frame 32 of the front fixed floor portion 30, the floor material 243 of the front movable floor portion 24 is placed. The floor material 243 of the front movable floor portion 24 is the frame of the front fixed floor portion 30. 32 is slidable.

The central fixed floor portion 60 includes a plurality of support posts 61 erected on the floor surface, and a frame 62 provided on the upper ends of the support posts 61.
The floor material 253 of the above-mentioned central moving floor portion 25 is placed on the frame 62 of the central fixed floor portion 60, and the floor material 253 of this central moving floor portion 25 is the frame of the central fixed floor portion 60. 62 is slidable.

The moving mechanism 40 is accommodated in the front fixed floor portion 30, and thereby is located on the side of the front wheel support unit 20. The moving mechanism 40 includes one extendable cylinder mechanism 41 that moves the front wheel support unit 20 in the vehicle length direction, and a guide mechanism 42 that guides the movement of the front wheel support unit.
The cylinder mechanism 41 includes a cylinder 411 that is rotatably supported on the front column 31 of the front fixed floor 30 with the vehicle width direction as a rotation axis, and a rod 412 that is accommodated in the cylinder 411 and moves forward and backward. .
Specifically, the cylinder mechanism 41 is provided at the approximate center of the front wheel support unit 20 in the vehicle width direction and extends in the vehicle length direction.
The tip of the rod 412 is rotatably connected to the approximate center of the connecting frame 232 of the front wheel support unit 20 described above, that is, the approximate center of the front wheel support unit 20 in the vehicle width direction, with the vehicle width direction as a rotation axis. .

FIG. 4 is a longitudinal sectional view of the guide mechanism 42.
The guide mechanism 42 is provided on the floor surface, and has a guide rail 421 extending in the expansion / contraction direction of the cylinder mechanism 41, that is, the vehicle length direction, and the connecting frame 232 of the roller support portion 23 described above with the substantially vertical direction as a rotation axis. A pair of guide rollers 422 provided to sandwich the guide rail 421.
The guide rail 421 is provided directly below the cylinder mechanism 41, that is, approximately in the center of the front wheel support unit 20 in the vehicle width direction.

  According to this guide mechanism 42, when the front wheel support unit 20 moves in the vehicle length direction of the vehicle 10, the pair of guide rollers 422 rotate and move along the guide rail 421 to guide the front wheel support unit 20.

FIG. 5 is a plan view of the rear wheel support unit 50.
The rear wheel support unit 50 includes a pair of left rear rollers 51A and 51B that support the left rear wheel 13, a pair of right rear rollers 52A and 52B that support the right rear wheel 14, and the rollers 51A and 51B. , 52A and 52B are rotatably supported and movable on the floor surface, and rotation suppression mechanisms 54 and 55 are provided on the roller support 53 to suppress rotation of the rollers 51A, 51B, 52A and 52B. And comprising.

The pair of left rear rollers 51A and 51B includes a first roller 51A and a second roller 51B located behind the first roller 51A.
The pair of right rear rollers 52A and 52B includes a first roller 52A and a second roller 52B located behind the first roller 52A.
The rollers 51A, 51B, 52A, and 52B have the same configuration as the above-described rollers 21A and 21B, respectively.

  The roller support portion 53 includes a pair of frame-shaped frames 531 formed in a rectangular frame shape, two connecting frames 532 that connect the pair of frame-shaped frames 531, and rollers 51 </ b> A provided on the frame-shaped frame 531. Eight bearing devices 534 that rotatably support the rotating shafts 214 of 51B, 52A, and 52B, a transmission mechanism 56 that connects the first roller 51A and the second roller 51B, which are left rear rollers, and a right rear side And a transmission mechanism 57 that connects the first roller 52A and the second roller 52B, which are rollers.

The transmission mechanism 56 connects the first roller 51A and the second roller 51B, which are left rear rollers, so as to rotate in the same direction, and has the same configuration as the transmission mechanism 26.
The transmission mechanism 57 connects the first roller 52A and the second roller 52B, which are right rear rollers, so as to rotate in the same direction, and has the same configuration as the transmission mechanism 26.

  The drive mechanism 70 includes a left rear roller drive mechanism 71 that drives the first roller 51A of the left rear roller, and a right rear roller drive mechanism 72 that drives the first roller 51A of the right rear roller.

The left rear roller drive mechanism 71 is provided at the outer end of the motor 711 installed on the floor, the drive sprocket 713 provided on the rotation shaft 712 of the motor 711, and the rotation shaft 214 of the first roller 51A. A driven sprocket 714 and a drive chain 715 wound between the drive sprocket 713 and the driven sprocket 714.
According to the left rear roller drive mechanism 71, when the motor 711 is driven to rotate, the rotation is transmitted to the first roller 51A via the drive sprocket 713, the drive chain 715, and the driven sprocket 714, and the first roller 51A rotates.

  The right rear roller drive mechanism 72 has the same configuration as the left rear roller drive mechanism 71.

FIG. 6 is a side view of the exhaust unit 90. FIG. 7 is a cross-sectional view of the exhaust unit 90.
The exhaust unit 90 is fixed rearward so as to cover the rear fixed floor 91, the duct 92 extending to the rear fixed floor 91 along the floor surface and having an opening 921 formed on the upper surface, and the opening 921 of the duct 92. A substantially rectangular flat lid portion 93 provided on the floor portion 91, and a drive mechanism 94 that is supported by the rear fixed floor portion 91 and opens and closes the lid portion 93.

  The rear fixed floor portion 91 includes a column 911 erected on the floor surface, a frame 912 provided at the upper end of the column 911, and a floor material 913 stretched on the upper surface of the frame 912.

The lid portion 93 is supported by the rear fixed floor portion 91 with the one side 93 </ b> A side as a rotation shaft 931. In the state shown in FIG. 6, the upper surface of the lid portion 93 is flush with the upper surface of the floor material 913 of the rear fixed floor portion 91.
Further, a foldable bellows-shaped lateral wall portion 932 extending from the two sides 93B and 93C adjacent to the side 93A of the lid portion 93 to the opening portion 921 is provided between the lid portion 93 and the opening portion 921 (FIG. 8). reference).

The drive mechanism 94 opens and closes the lid portion 93 by rotating the lid portion 93 around the rotation shaft 931. The drive mechanism 94 includes a cylinder mechanism 942 that moves the rod 941 back and forth in a substantially horizontal direction, and a link member 943 that connects the tip of the rod 941 and the side 93A side of the lid portion 93.
The base end side of the cylinder mechanism 942 is rotatably supported on the rear fixed floor portion 91 with the vehicle width direction as a rotation shaft 944.

The distal end of the rod 941 is rotatably supported on the lower end side of the link member 943 with the vehicle width direction as a rotation shaft 945.
The upper end side of the link member 943 is fixed to one side 93 </ b> A of the lid portion 93 so that the link member 943 and the lid portion 93 form a generally U shape in a side view.

In the exhaust unit 90 described above, in the initial state, as shown in FIG. 6, the rod 941 is advanced in a substantially horizontal direction with respect to the cylinder mechanism 942 and the lid portion 93 is closed.
From this state, when the cylinder mechanism 942 is driven to retract the rod 941, the lower end side of the link member 943 is pulled toward the cylinder mechanism 942 by the rod 941, and the link member 943 rotates as shown in FIG. It rotates on the shaft 931.

Then, since the upper end side of the link member 943 is fixed to the one side 93 </ b> A side of the lid portion 93, the lid portion 93 also rotates on the rotation shaft 931. Thereby, the cover part 93 opens and the horizontal wall part 932 expands. Further, along with the rotation of the link member 943, the cylinder mechanism 942 slightly rotates downward on the rotation shaft 944.
In this state, a gas intake port 95 surrounded by a lid portion 93 and a lateral wall portion 932 is formed toward the front of the exhaust unit 90, and the gas intake port 95 is connected to the opening 921 of the duct 92.

In the above vehicle inspection apparatus 1, the vehicle 10 is inspected by the following procedure.
First, the front wheel support unit 20 is moved by driving the moving mechanism 40 according to the wheel base of the vehicle 10 to be inspected, and the distance between the front wheel support unit 20 and the rear wheel support unit 50 is adjusted. .
Next, the lid 93 of the exhaust unit 90 is closed, and the vehicle 10 is caused to enter the vehicle inspection apparatus 1 in this state.
Next, the lid 93 of the exhaust unit 90 is opened to form the gas intake 95. Since the exhaust pipe 15 of the vehicle 10 is positioned in front of the lid portion 93, the gas intake port 95 of the exhaust unit 90 faces the exhaust port of the exhaust pipe 15 (see FIG. 8).
Next, the engine of the vehicle 10 is started and an inspection is executed. At this time, the exhaust gas discharged from the exhaust pipe 15 of the vehicle 10 flows into the duct 92 through the gas intake 95 of the exhaust unit 90.

According to this embodiment, there are the following effects.
(1) Since the lid portion 93 is provided on the upper surface of the duct 92 and the lid portion 93 is opened and closed by the drive mechanism 94, the lid portion and the duct main body are not accommodated on the duct as in the prior art. The space from the upper surface of 92 to the floor on which the vehicle 10 travels can be narrowed, and the exhaust unit 90 can be made thinner.

  (2) The drive mechanism 94 includes a cylinder mechanism 942 and a link member 943, and the rod 941 of the cylinder mechanism 942 is advanced and retracted in the horizontal direction. Therefore, the exhaust unit 90 can be made thinner than when the cylinder mechanism 942 is expanded and contracted in the vertical direction.

  (2) The link member 943 and the lid portion 93 were fixed so as to form a substantially square shape in a side view. Therefore, the drive mechanism 94 does not greatly expand in the horizontal direction, and a compact configuration is obtained.

  It should be noted that the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. within a scope that can achieve the object of the present invention are included in the present invention.

90 Exhaust unit (gas exhaust device)
92 Duct 93 Lid 93A One side 93B, 93C Two sides adjacent to one side 94 Drive mechanism 921 Opening 931 Rotating shaft 932 Horizontal wall portion 941 Rod 942 Cylinder mechanism 943 Link member

Claims (1)

A gas discharge device provided in an inspection device that forms an inspection floor surface above the floor surface and inspects a vehicle traveling on the inspection floor surface,
A duct extending along the floor for inspection and having an opening formed on the upper surface;
Substantially a rectangular lid the inspection for floor flush in a state where the opening was Tsu covering of the duct,
A drive mechanism that opens and closes the lid with the one side of the lid as a rotation axis;
A foldable lateral wall from the two sides adjacent to one side of the lid to the opening , and
The drive mechanism includes a cylinder mechanism that moves the rod back and forth in a substantially horizontal direction, and a link member that connects the tip of the rod and the lid portion,
The link member and the lid are fixed so as to form a generally U shape in a side view,
The gas discharge device according to claim 1, wherein a base end side of the cylinder mechanism is rotatably supported .

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