JPH04115231U - exhaust auxiliary pipe - Google Patents

Abstract

(57) [Summary] [Purpose] To ensure that the exhaust auxiliary pipe can be attached to the exhaust port of the exhaust pipe. [Structure] A presser lever 10 is provided on the connection side of the exhaust auxiliary pipe 1, with a pressing pad 12 at one end and a grip 11 at the other end that runs along the exhaust auxiliary pipe 1. When attached to the exhaust port of P, the pressure pad 12 is pressed by the biasing force of the coil spring 7.
is brought into pressure contact with the lower surface of the exhaust pipe P, thereby bringing the upper outer circumferential surface of the exhaust auxiliary pipe 1 into close contact with the upper inner circumferential surface of the exhaust pipe P, thereby firmly coupling the two.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is installed at the tip of the exhaust pipe and is used as an idler on the conveyor. Regarding the exhaust auxiliary pipe that discharges exhaust gas from the inspected vehicle to the exhaust duct during inspection. .

0002

[Conventional technology]

Exhaust installed along the conveyor from the inspected vehicle idling on the conveyor To guide exhaust gas into the duct, there is usually a removable device that can be attached to the tip of the exhaust pipe. An eel exhaust auxiliary pipe is used.

0003 This exhaust auxiliary pipe is easy to attach and detach from an operational point of view, and has different diameters. It is required to be able to be inserted into the exhaust pipe of the - Exhaust pipe like the exhaust auxiliary pipe seen in Publication No. 140406 In order to meet these demands, we created a large number of vertical notches in the insertion part for P. If the expansion force of the insertion part is lost, it may come off easily or However, it has the disadvantage that exhaust gas tends to leak from the cut portion.

0004

[Problem that the idea aims to solve]

This invention was created in view of these problems, and its purpose is to: A new model that is easy to attach and detach from the exhaust pipe and can be inserted securely. The objective is to provide an exhaust auxiliary pipe.

[0005]

[Means to solve the problem]

In other words, the present invention uses this as an exhaust auxiliary pipe to accomplish these tasks. At the side where the exhaust auxiliary pipe connects to the exhaust pipe, install a contact with one end in contact with the outer peripheral surface of the exhaust pipe. The pressing member, which serves as a contact part and the other end serves as a grip part along the exhaust auxiliary pipe, is used as a biasing member. The exhaust pipe is pivoted so as to be able to rotate while being biased in the direction of being in pressure contact with the outer peripheral surface of the exhaust pipe at all times. It is something that

[0006]

[Effect]

With this configuration, the exhaust auxiliary pipe can be attached to the exhaust port of the exhaust pipe. By pressing the abutting part against the circumferential surface of the exhaust pipe using the biasing force of the biasing member, , the outer circumferential surface of the exhaust auxiliary pipe and the inner circumferential surface of the exhaust pipe are brought into close contact to make them both strong. combine.

[0007]

【Example】

Therefore, the illustrated embodiment will be described below. FIG. 1 shows an embodiment of the present invention, and the exhaust auxiliary pipe 1 shown here is As shown in Figure 3, insert the tip into the exhaust pipe P of the vehicle under inspection B and lower it. By making the end face the inside of the exhaust duct b along the slat conveyor C, Exhaust gas emitted from the idling engine can be discharged to exhaust duct b. It is composed of

[0008] This exhaust auxiliary pipe 1 can be inserted into exhaust pipes P having different diameters. The insertion part 2 is formed in a tapered shape so that the insertion part 2 can be A stopper 5, which is integral with the support bracket 4, is fixed to the rear of the insertion part. An auxiliary collar 14, which will be described later, is rotatably held between the stopper 2 and the stopper 5. , so that a presser lever 10, which will be described later, is swingably supported by the support bracket 4. It is composed of

[0009] By the way, the presser lever 10 described above presses the exhaust pipe P from the bottom surface. and functions to prevent the exhaust auxiliary pipe 1 from coming off by using the reaction force, This presser foot lever 10 is always moved clockwise in the figure by the coil spring 7. A fulcrum is placed at the lower end of the lever support bracket when a rotation biasing force is applied in the pressing direction. It is rotatably supported by a pin 8. This presser foot lever 10 is held at an almost right angle. It is bent, and one side thereof extends almost parallel to the exhaust auxiliary pipe 1. The other side is used as the grip 11, and the other side extends to the insertion part 2 side, and an exhaust is attached to the tip of the grip 11. A pressure pad 12 that presses the bottom of the top pipe P or muffler cutter M is attached. It is being Also, the coil spring 7 that biases the presser lever 10 is attached to the fulcrum pin. Place one end above the bracket 4 and hold the other end of the lever 10 so that it passes near the lever 10. By attaching it to the stay 13 provided at the bent part of the The presser foot lever 10 is configured to be able to be rotated significantly without changing the presser foot lever 10. It is.

0010 On the other hand, the above-mentioned auxiliary collar 14 is suitable for a test object equipped with a plurality of exhaust pipes P. This supplementary exhaust pipe 1 can also be applied to the vehicle B. As shown in FIG. 5 and the other exhaust pipe. A stopper 16 that closes the outlet of the pipe P', and the stopper 16 further includes a cover. The two exhaust pipes P and P' are connected via the stay 18 fixed to the roller part 15. are installed parallel to one side of the exhaust auxiliary pipe 1 at a distance corresponding to the interval of Place the par-shaped head 17 on the exhaust port of the other exhaust pipe P'. It is configured to close off that part.

[0011] Therefore, the exhaust auxiliary pipe 1 configured in this way is now connected to the exhaust pipe. To attach it to the exhaust port of the pad P, first grasp the grip 11 and press the pressure pad on the other end. 12 is expanded, and the tapered insertion part 2 is inserted into the exhaust pipe P. Insert it into your mouth. As a result, the exhaust auxiliary pipe 1 has the diameter of the exhaust pipe P. It will be inserted to the point where it fits, then release the grip 11 and press the pressure pad on the other end. The pad 12 is strongly pressed against the lower surface of the exhaust pipe P by the tension of the spring 7. At that time, the reaction force causes the exhaust auxiliary pipe 1 to rotate clockwise in the figure around the fulcrum pin 8. to bring the upper outer circumferential surface of the insertion part 2 into close contact with the upper inner circumferential surface of the exhaust pipe P. The frictional force acting between the two creates a strong bond.

0012 In addition, attach this exhaust auxiliary pipe 1 to the exhaust pipe P with the muffler cutter specification. To install, grip the grip 11 firmly and widen the pressure pad 12 on the other end. However, as mentioned above, the coil spring 7 should be placed near the fulcrum pin 8. Since the presser foot lever 1 is tensioned so that it passes through, it does not require much force. 0 to press the pressure pad 12 against the lower surface of the muffler cutter M. be able to.

[0013] By the way, during this installation, the plug body 16 is rotated downward due to its own weight, so , it does not interfere with the insertion and attachment of the exhaust auxiliary pipe 1. And two exhausts For inspected vehicle B equipped with pipes P and P', plug body 16 is connected to the other exhaust pipe. While it is in contact with the exhaust port of pipe P', connect it to the other exhaust pipe P. Insert and fix the air auxiliary pipe 1. This allows the other exhaust pipe P' is blocked by the stopper 16, but the inspected vehicle B on the conveyor C is idle. Since the exhaust pressure from the engine is low under the operating conditions, no particular problem will occur.

[0014]

[Effect of the idea]

As described above, according to the present invention, the side of the exhaust auxiliary pipe connected to the exhaust pipe end is , one end is used as a contact part that comes into contact with the outer peripheral surface of the exhaust pipe, and the other end is placed along the exhaust auxiliary pipe. A presser member serving as a grip is pivoted, and the presser member is constantly evacuated by a biasing member. Since it is configured to be biased in the direction of pressure contact with the pipe, this exhaust auxiliary pipe can be easily At this time, by inserting it into the trachea and pressing the holding member against the outer circumferential surface of the exhaust pipe, The reaction force is used to rotate the exhaust auxiliary pipe around the fulcrum, and the outer circumferential surface and the inside of the exhaust pipe are The exhaust auxiliary pipe should be brought into close contact with the surrounding surface, and the large frictional force at that time will prevent the exhaust auxiliary pipe from falling off. It can be firmly connected to the exhaust pipe without causing any damage. In addition, there is no need to block the other exhaust pipe end on the side where this exhaust auxiliary pipe connects to the exhaust pipe. Since the collar with a stopper body is rotatably attached, it can be used even when there is only one exhaust pipe. Therefore, it can be easily adapted to vehicles to be inspected that are equipped with multiple exhaust pipes.

[Brief explanation of drawings]

FIG. 1 is a side view of an exhaust auxiliary pipe showing an embodiment of the present invention.

FIG. 2 is a perspective view showing other main parts of the pipe.

FIG. 3 is a diagram illustrating an example of a completed vehicle inspection department where the pipe is used.

[Explanation of symbols]

1 Exhaust auxiliary pipe 2 Tapered insertion part 5 Stopper 7 Coil spring 10 Presser foot lever 11 Grip 12 Pressure pad 14 Auxiliary color 16 Plug body P exhaust pipe

Claims (2)

[Scope of utility model registration request] Claim 1: An exhaust auxiliary pipe connected to the end of an exhaust pipe of a vehicle transported by a conveyor to guide exhaust gas from the exhaust pipe to an exhaust duct, the exhaust auxiliary pipe being connected to the exhaust pipe of the exhaust auxiliary pipe. A pressing member, which has one end as an abutting part that comes into contact with the outer circumferential surface of the exhaust pipe and the other end as a grip along the exhaust auxiliary pipe, is placed on the connecting part side of the exhaust pipe to constantly hold the exhaust pipe by a biasing member. An exhaust auxiliary pipe characterized in that it is rotatably supported in a state where it is biased in a direction in which it comes into pressure contact with an outer circumferential surface. 2. A rotatable collar member provided on one side of the exhaust auxiliary pipe with a plug that closes an end of the exhaust pipe other than the exhaust pipe connected to the exhaust auxiliary pipe, on the side where the exhaust auxiliary pipe connects to the exhaust pipe. The exhaust auxiliary pipe according to claim 1, which is dynamically attached.