JPH0619797Y2 - Muffler cutter mounting device for dual muffler - Google Patents

Description

[Detailed Description of Device] a. Purpose of the invention (industrial application field) This invention is a muffler cutter mounting device for a dual muffler. More specifically, the present invention relates to a device that can easily and securely attach a muffler cutter that includes both of them to a dual muffler with a single screw.

(Prior Art) Conventionally, a dual muffler has a two-piece structure as shown in FIG.
The muffler cutter 13 is specially attached to the muffler 12, 12, and the attaching device is a pair of U-shaped arc-shaped tips whose ends match the peripheral surface of the muffler 12 as shown in FIGS. 7 and 8. Inserting the clamping pieces 14, 14 into the receiving holes 15, 15 formed oppositely to the wall surface of the muffler cutter 13, inserting a screw 17 into the hole 16 formed in the center of the clamping piece 14, and attaching this to the muffler cutter 13. A structure for screwing and tightening the screw 18 for installation, and for sandwiching the muffler 12 by a pair of sandwiching pieces 13, 13.
Or, as shown in FIG. 9, an arcuate receiver 19 that fits the circumferential surface of the muffler 12, 12 is provided on one side of the inside of the muffler cutter 13 with a mounting portion 20.
Mounted on the other side of the muffler cutter 13.
21 is provided, and a screw 22 is screwed into the screw 21 to tighten the screw 22, and the muffler 12, 12 is sandwiched between the screw 22 and the receiving body 19.

(Problems to be solved by the invention) Of the above-mentioned conventional muffler cutter mounting devices for a dual muffler, the former one mounts the muffler cutter to the muffler by tightening the two screws 17, so the mounting is troublesome and However, if the two screws 17, 17 are unbalanced in tightening, the muffler 12 cannot be fixed to the center of the muffler cutter 13, and the U-shaped holding piece 14 is visible because its plate width side is visible. , There is a problem that the appearance of the product is very bad. The latter is done by tightening one screw 22, so it is easy to install, but the muffler 12 is deformed because it presses the muffler 12 with the tip of the screw 22. Not only does it cause scratches and rusts, but also causes the screw 22 to loosen easily. The above-mentioned problem is that the muffler cutter 13 is attached to the two mufflers 12, 12 separately. It was doubled in Almuffler.

The present invention has been made to solve the above-mentioned problems, and a muffler cutter that includes two mufflers is provided.
It is also an object of the present invention to provide a device that can easily and securely attach a muffler cutter by simply tightening a single screw by attaching it to the muffler with a holding tool that sandwiches the muffler from both sides and connects it in the middle. .

(B) Configuration of the Invention (Means for Solving the Problem) The means of the invention for achieving the above-mentioned object is the above-mentioned two muffler cutters containing two mufflers arranged at intervals. Correspondingly accommodate a pair of sandwiching pieces having a contact portion to a part of the peripheral surface of the muffler and an insertion portion into the space, and fix one of the sandwiching pieces to the muffler cutter by the mounting portion, and the other A hole is provided in the insertion part of the sandwiching piece of No. 2, and a screw is inserted through the window hole provided in the muffler cutter. The structure of the muffler cutter attachment device for a dual muffler is configured to be screwed to sandwich two mufflers by both sandwiching pieces.

The muffler cutter in this device is a dual muffler, that is, it includes two mufflers arranged at intervals so that a space exists around the muffler. Therefore, the cross-sectional shape is a coasting circle, an oval shape, a rectangle, or a flat shape. A turtle shell shape and others that match the design of the target vehicle are selected and used.The material is stainless steel plate that does not look bad due to rust or discoloration, or the steel plate is plated with nickel, chrome, etc. This muffler cutter is provided with a window hole for inserting a screw described later and tightening.

The muffler holding piece uses a pair of integrally formed contact portions that come into contact with a part of the peripheral surfaces of the two mufflers and an insertion portion that enters the space between the mufflers in order to hold the two mufflers at the same time. The pair of sandwiching pieces may have the same shape, but if they are not attached to the movable side, that is, to the muffler cutter, the contact portion with the muffler may be shortened. And these clamping pieces are provided with a mounting part to the muffler cutter on one side, and when mounting the muffler cutter concentrically to the muffler, this mounting part is eccentric by protruding from the contact part to the muffler by the space. When mounting, the outer surface of the abutting part is used as the mounting part, and this mounting part is mounted on the muffler cutter by means such as spot welding, and is used as the insertion part into the gap of the sandwiching piece on which the mounting part is provided. Forms a female screw by means of a burring tap, weld nut, etc., and in correspondence with this female screw, a screw insertion hole should be provided at the insertion part into the gap of the other clamping piece. The piece is also made of the same material as the muffler cutter described above to prevent rust and discoloration.

The screw is inserted into the hole of the sandwiching piece through the window hole of the muffler cutter described above, and by tightening by screwing into the screw to be provided on the other sandwiching piece, the pair of sandwiching pieces are attracted, and the muffler is sandwiched by these. It fixes the muffler cutter to the muffler, and uses the same material as the muffler cutter and muffler to prevent rust and discoloration,
As is well known, a plain washer and a spring washer are provided under the head to prevent loosening.

(Operation) In the device of the present invention configured as described above, two mufflers are inserted into a muffler cutter having one sandwiching piece attached, and the abutting portion of the sandwiching piece is attached to the peripheral surface of the two mufflers. Attach the other clamping piece to the opposite side of the muffler, insert a screw into the hole provided in the insertion part from the window hole opened in the muffler cutter, and install this screw on the other clamping piece. Therefore, if you screw it to the screw to tighten it, both screws will pull both clamping pieces, and the abutment will clamp the muffler, and the muffler cutter can be attached to the muffler simply and securely by tightening one screw. In addition, the sandwiching piece does not come into surface contact with the muffler by the abutting part, which does not deform the muffler or cause damage to cause rust,
Further, the sandwiching piece is not conspicuous because only the thickness of the sandwiching piece can be seen later, and the appearance of the product is very good.

(Embodiment) An embodiment of the device according to the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a muffler cutter, which is formed by a stainless steel plate to have a coasting circular cross section so as to include two mufflers 2 and 2 arranged at intervals with a space 3. On one side of the muffler cutter 1, there is provided a window hole 4 for inserting a screw described later and tightening it with a tool.

Reference numerals 5 and 6 are sandwiching pieces of the mufflers 2 and 2, which are formed of stainless steel plates like the muffler cutter 1. One of the sandwiching pieces 5 is a contact portion a, a which is in contact with about half of the peripheral surfaces of the mufflers 2 and 2. And a muffler 2, 2 has an entrance portion b that enters the space between the mufflers 2, 2. A female screw 7 is formed by a burring tap at the center of the entrance portion b. Mounting portions c, c corresponding to the space 3 between the muffler cutter 1 and the muffler cutter 2 are projected, and the portions c, c are spot-welded to the muffler cutter 1 so that the contact portions a, a are muffler 2, 2. The muffler cutter 1 is held concentrically with the mufflers 2 and 2, and the other holding piece 6 has an abutting portion a which contacts a circumference of about 1/4 of the mufflers 2 and 2. a and an entrance portion b that enters the space between the mufflers 2 and 2, and the entrance portion b It is provided with insertion holes 8 of the screw which will be described later in accordance with the internal thread 7 provided in Nyukomi portion b of one clamping piece 5.

Reference numeral 9 is a screw for connecting the pair of holding pieces 5 and 6 described above, which is made of a stainless material and has a well-known flat washer 10 under its head.
And the washer 11 together with the window hole 4 of the muffler cutter 1.
From the gripping piece 6 into the hole 8 of the sandwiching piece 6, and the tip of the sandwiching piece 5 is screwed into the female screw 7 of the other sandwiching piece 5 and tightened by the tool inserted through the window hole 4 of the muffler cutter 1. The mufflers 2 and 2 are sandwiched by and the muffler cutter 1 can be attached to the mufflers 2 and 2 simply, reliably and with good appearance.

FIG. 3 shows another embodiment. In the above embodiment, the abutment portions a of the holding piece 5 have a mounting portion c corresponding to a space between the muffler 2, 2 and the muffler cutter 1. , C are provided, the attachment parts c, c are attached to the muffler cutter 1, and the abutting parts a, a are brought into contact with the muffler 2, 2 to hold the muffler 2, 2 and the muffler cutter concentrically. However, in this embodiment, the contact portions a, a
Attach the portion of the outer periphery of the muffler cutter 1 that contacts the mounting portion c,
c, and the muffler cutter 1 is eccentrically attached to the mufflers 2 and 2, but other structures are the same, so the same members are denoted by the same reference numerals and description thereof is omitted.

FIG. 4 and FIG. 5 show an example of attachment to one muffler. One muffler 2 is sandwiched between one abutting parts a, a of the holding pieces 5, 6 and the other abutting part. The muffler cutter 1 has a single muffler 2 when the pseudo muffler 2'is sandwiched between a and a and the clamping pieces 5 and 6 are tightened with screws 9.
The single muffler has the appearance of a dual muffler because it is easily installed and the muffler 2 and the pseudo muffler 2 ′ are lined up therein.

C. Effect of the Invention As described above, in the device of the present invention, one muffler cutter that covers the two mufflers is attached with one screw, so the number of attachment steps is half that of the conventional individual attachment.

The muffler holding piece has an abutting part that abuts the peripheral surface of the two mufflers and an insertion part that goes into the space, and the two mufflers are equally pressed from the inside and outside by tightening one screw. Therefore, the muffler can be securely and stably fixed, and the abutment portion and the muffler are in surface contact with each other, so that the muffler is not deformed or damaged.

Since the holding piece can only see the plate thickness, its presence is inconspicuous, and the appearance of the product is greatly improved.

The muffler and the muffler cutter can be accurately attached concentrically by aligning the attachment part of the holding piece to the muffler cutter with the space between the muffler and the muffler cutter, but if the holding piece is directly attached to the muffler cutter, The muffler cutter can also be installed eccentrically, so there is versatility in mounting.

It has unique effects such as.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the device according to the present invention. FIG. 2 is a vertical cross-sectional front view showing a state in which the above attachment is completed. FIG. 3 is a vertical sectional front view showing a state in which the mounting is completed in another embodiment. FIG. 4 is an exploded perspective view showing an example of attachment to a single muffler. Fifth
The figure is a plan view showing the completion of the attachment. FIG. 6 is a perspective view showing a conventional mounting device. FIG. 7 is a vertical sectional front view showing an example of the above-mentioned mounting structure. FIG. 8 is a transverse plan view of the same as above. FIG. 9 is a vertical sectional front view showing another example of the mounting structure. In the figure, 1 is a muffler cutter, 2 and 2 are mufflers,
4 is a window hole, 5 and 6 are a pair of holding pieces, a and a are contact parts,
Reference numerals b and b are insertion portions, c and c are attachment portions, 8 is a hole, and 9 is a screw.

Claims (1)

[Scope of utility model registration request] 1. A muffler cutter that encloses two mufflers arranged at a distance, and has an abutting portion for contacting a part of a peripheral surface of the two mufflers and an insertion portion for the distance. Correspondingly accommodate a pair of sandwiching pieces, and fix one of the sandwiching pieces to the muffler cutter by the attachment part, and provide a hole in the insertion part of the other sandwiching piece to the muffler cutter. Insert the screw from the window hole, and screw it into the screw to install it in the insertion part of the other clamping piece into the gap,
A muffler cutter attachment device for a dual muffler, which is characterized by holding two mufflers by both holding pieces.