JPS5941323Y2 - air cleaner - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an air cleaner used for the intake air flow of an engine, which has been improved so that it can be made at low cost.

Recently, the bodies and lids of air cleaners are made of synthetic resin and manufactured at low cost by C1 injection molding.

However, if you tighten the lid too tightly, it may crack. Furthermore, each mating surface must be sealed using a packing material, which increases the cost.

This invention has been improved in view of the disadvantages of this invention, and an embodiment of the invention shown in the drawings will be described below.

The cleaner body 1 has a tip shape and is made of synthetic resin and is injected into a BT shape.

The cleaner body 1 is provided with an inlet 2 on one side of its outer periphery, and an outlet 3 at the center of its lower end.

The cleaner body is provided with a protruding threaded cylinder 5 having a window hole 4 in the center, and a threaded rod 6 protrudes from the upper end of the threaded cylinder 5.

A cylindrical filter 1 is inserted into the cleaner body 1 in the same layer.

Seal packings 8 are attached to the upper and lower surfaces of the filter 7.

The lid body 9 is made of synthetic resin by injection molding like the cleaner body 1, and has a circumferential groove 10 on its outer periphery that fits into the end of the cleaner body 1, and a sealing groove in the circumferential groove 10. Insert the O-ring 11.

In addition, a core cylinder 12 is provided in the center of the lid body 9 and protrudes inward.
A circumferential strip 13 with a pointed tip is integrally protruded from the lower end surface of the core tube 12.

The lid body 9 is attached to the cleaner body 1 by passing the threaded rod 6 through the core cylinder 12.
The wing nut 14 is screwed onto the tip of the threaded rod 6 to tighten it.

The effect will be explained.

When the lid 9 is attached to the cleaner body 1 and the wing nut 14 is tightened, the seal gaskets 8 at both ends of the filter 7 are pressed against the bottom surface of the cleaner body 1 and the inner surface of the lid 9.
The inside and outside of the filter γ are sealed.

Further, the 0'J song 1 in the circumferential groove 10 of the lid body 9 is also crimped, and the outer periphery of the cleaner body 1 and the lid body 9 can be sealed.

Furthermore, the circumferential strip 13 at the tip of the core tube 12 of the lid body 9 is pressed against the end surface of the threaded tube 5 to form a seal.

In this way, the core tube 12 hits the screw tube 5, so the wing nut 14
This prevents over-tightening and prevents the lid body 9 from cracking.

Also, since it does not tighten more than necessary, seal packing 8 and O
r) The ring 11 does not become flattened due to excessive pressure and can be used repeatedly.

Since the end surface of the core tube 12 can be sealed by the circumferential strip 13 hitting the threaded tube 5, no backing is required.

Incidentally, the intake air enters from the suction port 2, and when it passes through the filter T from the outside to the inside, it passes through the window hole 4 and exits to the outlet 3.

As explained above, in this invention, a cylindrical filter is inserted into a pot-shaped cleaner body, and a lid is attached to the cleaner body, and a core tube is protruded from the center of the lid. At the same time, a side strip with a sharp tip is integrally provided on the lower end surface of the core cylinder, and the side strip is brought into pressure contact with the end surface of the threaded tube protruding from the center of the cleaner body, so that the side strip protects the backing. It can double as a device and can be done inexpensively.

Furthermore, since the core tube abuts against the threaded tube, over-tightening of the nut can be prevented, and the lid will not crack.

Furthermore, since over-tightening can be prevented, the O-ring and seal backing can maintain appropriate pressure and prevent flattening, allowing repeated use.

Maintenance costs will also be lower.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, with Figure 1 being a longitudinal sectional view and Figure 2 being a longitudinal sectional view.
The figure is an enlarged view of the portion seen by arrow A in FIG. DESCRIPTION OF SYMBOLS 1... Cleaner body, 5... Threaded tube, I... Filter, 9... Lid body, 12... Core tube, 13... Side stripe.

Claims (1)

[Scope of utility model registration request] In a device in which a cylindrical filter is inserted into a cylindrical cleaner body and a lid is attached to the cleaner body, a core cylinder is protruded from the center of the lid, and the lower end surface of the 6-piece 1. An air cleaner characterized in that a circumferential strip with a sharp tip is integrally provided on the air cleaner body, and the circumferential strip is brought into pressure contact with an end surface of a threaded cylinder protruding from the center of a cleaner body.