JP4451266B2 - Muffler cutter - Google Patents

Description

  The present invention relates to a muffler cutter that is attached to the tip of an exhaust pipe of a vehicle.

  Conventionally, a muffler cutter that is attached to an exhaust pipe of a vehicle such as an automobile to improve the aesthetic appearance of the exhaust pipe has been used.

  FIG. 8 is a perspective view showing a state in which a conventional muffler cutter 60 (see Patent Document 1) is attached to the tip of an exhaust pipe 70 of a straight type vehicle. Thus, the exhaust pipe 70 is inserted into the substantially cylindrical muffler cutter 60, and the mounting position and the mounting angle are changed by the mounting means 80 provided in the muffler cutter, thereby improving the aesthetic appearance of the exhaust pipe. Can be made.

Japanese Patent Laid-Open No. 2004-27933

  Recently, in order to prevent the exhaust gas from being exhausted toward the rear of the vehicle, the number of vehicles equipped with a downward exhaust pipe that bends the tip of the exhaust pipe downward and exhausts the exhaust toward the ground has increased. Yes. Such a downward exhaust pipe is hidden by the rear bumper and is difficult to see from the outside.

  By attaching a muffler cutter to such a downward exhaust pipe, it is possible to change the direction of exhaust and improve the aesthetic appearance of the exhaust pipe.

  However, when a conventional straight type muffler cutter is attached to such a downward exhaust pipe, the attachment angle depends on the shape of the tip of the exhaust pipe, and as a result, the exhaust pipe is attached downward. The muffler cutter's original purpose of improving the aesthetic appearance cannot be achieved.

  The present invention has been made in view of the above problems, and an object thereof is to provide a muffler cutter that can be attached to an exhaust pipe having a tip portion inclined downward.

In order to achieve the above object, a muffler cutter of the present invention is a muffler cutter attached to an exhaust pipe of a vehicle,
A cylinder portion having a discharge port for discharging exhaust gas at one end, and an insertion port into which the tip of the exhaust tube is inserted when the muffler cutter is attached to the exhaust tube at the other end; A main body composed of an extending part extending in an open state from the other end of the cylindrical part,
In order to attach and fix the main body to the exhaust pipe, the mounting means provided above the extension portion,
The attachment means is connected to the support member having a top surface portion that supports a bottom surface of the exhaust pipe in a state where a distal end portion of the exhaust pipe is inserted into the insertion port, and the exhaust pipe A fixing means composed of a clamp member that can be fastened and changed in diameter, and an adjusting means that can adjust the position and angle of the mounting means with respect to the main body,
The adjusting means is provided so as to penetrate the first slot formed in the extending portion, the second slot formed in the side surface portion of the support member, and the first slot and the second slot. It consists of a fixed member,
The fixing means and the adjusting means are characterized in that the main body can be attached and fixed to the exhaust pipe in a state adapted to the size and shape of the exhaust pipe .

According to the muffler cutter having the above-described configuration, the attachment and fixing state of the main body with respect to the exhaust pipe can be adjusted by adjusting the position and angle of the attachment means with respect to the main body . Thereby, a muffler cutter can be attached to the exhaust pipe without depending on the size and shape of the exhaust pipe. Therefore, it can be easily attached to the exhaust pipe whose tip is inclined downward.

  Moreover, in the muffler cutter of the present invention, the clamp member has a belt wound around the exhaust pipe and a worm mechanism capable of changing the diameter of the belt according to the diameter of the exhaust pipe. Is preferred.

  Thereby, a muffler cutter can be attached to the exhaust pipe without depending on the diameter of the exhaust pipe.

  Further, in the muffler cutter of the present invention, the adjusting means is a parallel direction constituted by the first slot and the fixing member in order to adjust the position of the mounting means in the parallel direction with respect to the axis of the main body. It is preferable to provide a slide mechanism.

  Thereby, the attachment means can be slid along the first slot, and the position of the attachment means in the parallel direction with respect to the axis of the main body can be adjusted.

  In the muffler cutter of the present invention, the adjusting means includes the first slot, the second slot, and the fixing member in order to adjust the inclination angle of the mounting means with respect to the axis of the main body. It is preferable to provide a tilt angle adjusting mechanism.

  Thereby, the attachment means can be rotated about the fixing member, and the inclination angle of the attachment means can be adjusted with respect to the axis of the main body.

  Further, in the muffler cutter of the present invention, the adjusting means is configured to have an inclination angle direction configured by the second slot and the fixing member in order to adjust the position of the attachment means in the inclination angle direction with respect to the main body. It is preferable to provide a slide mechanism.

  Thereby, the attachment means can be slid along the second slot, and the position of the attachment means in the inclination angle direction with respect to the axis of the main body can be adjusted.

In the muffler cutter of the present invention, the adjusting means includes a parallel-direction slide mechanism including the first slot and the fixing member, the first slot, the second slot, and the fixing member. It is preferable that a tilt angle adjusting mechanism and a tilt angle direction slide mechanism composed of the second slot and the fixing member are fixed at the same time by the single fixing member.
Thereby, it can fix simultaneously in the state of the position and angle adjusted by the parallel direction slide mechanism, the inclination angle adjustment mechanism, and the inclination angle direction slide mechanism.

  The above-described and other configurations, operations, and effects of the present invention will become more apparent from the following description of preferred embodiments with reference to the accompanying drawings.

  Hereinafter, a muffler cutter according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

  As shown in FIG. 1, the muffler cutter 1 includes a substantially cylindrical main body 10 and attachment means 20 provided at the rear portion of the main body 10. Reference numeral 50 denotes an exhaust pipe of the vehicle, and an inclined portion 51 inclined downward is formed at the tip of the exhaust pipe 50.

  As shown in FIG. 2, the main body 10 is formed by forming a stainless steel plate into a substantially cylindrical shape. The main body 10 includes a cylindrical tube portion 11 having an exhaust port 14 for discharging exhaust gas at one end, an extension portion 12 extending rearward (rightward in the drawing) from the other end of the tube portion 11, It is comprised from the notch part 13 provided above the protrusion part 12. As shown in FIG.

  In the present embodiment, the cylindrical portion 11 is formed in a substantially circular cross section. Further, as shown in FIGS. 1 and 2, the cylindrical portion 11 has an insertion opening through which the inclined portion 51 of the exhaust pipe 50 is inserted when the muffler cutter 1 is attached to the exhaust pipe 50. 16 The insertion port 16 is formed by the notch 13. Further, as shown in FIG. 3, the end portion on the exhaust port 14 side of the cylindrical portion 11 is bent so as to be rounded to the inner side of the cylindrical portion 11.

  In the present embodiment, the extending portion 12 is formed in a substantially U-shaped cross section. Further, the extending portion 12 is formed integrally with the cylindrical portion 11 together with the above-described insertion opening by forming a notch portion 13 behind the cylindrical portion 11. For this reason, the extension part 12 is in a state where the upper part is opened.

  As shown in FIG. 1, the range of the cutout portion 13 is set so that the inclined portion 51 of the exhaust pipe 50 can be inserted into the cylinder portion 11 when the muffler cutter 1 is attached to the exhaust pipe 50. In the present embodiment, the cutout portion 13 is formed so as to be U-shaped when viewed from above the main body 10 and is cut into a shape as shown in FIG. 3 when viewed from the side.

  Further, as shown in FIGS. 2 and 3, a drainage hole 15 for draining water accumulated in the main body 10 is formed in the lower portion of the cylindrical portion 11.

  As shown in FIG. 2, first slots 41 extend substantially parallel to the axis of the main body 10 on both side portions of the extending portion 12 at substantially opposing positions. A bolt 43 described later passes through the first slot 41. The attachment means 20 is provided above the extending portion 12 via the bolt 43.

  The attachment means 20 includes a fixing means 21 that fixes the exhaust pipe 50 and an adjustment means 22 that can adjust the position and angle of the attachment means 20 with respect to the main body 10.

  As shown in FIGS. 1 and 2, the fixing means 21 includes a support member 30 having an upper surface portion 31 that supports the lower surface of the exhaust pipe 50 in a state where the inclined portion 51 of the exhaust pipe 50 is inserted into the insertion port. (See FIG. 4) and a clamp member 35 that is connected to the support member 30 and that can fasten the periphery of the exhaust pipe 50 and change its diameter.

  As shown in FIG. 4, the support member 30 is formed by bending a single stainless steel plate into a substantially M shape. The support member 30 is integrally formed from an upper surface portion 31 (see FIG. 1) for supporting the exhaust pipe 50 from below, a pair of holes 32 provided at an interval in the upper surface portion 31, and both ends of the upper surface portion 31. The bent side surface portion 33 and the pair of second slots 34 extending in the vertical direction in FIG. 4 are formed on the side surface portion 33 at the opposite position.

  A belt 36 of a clamp member 35 described later is passed through the pair of holes 32 (see FIG. 2). Moreover, the side part 33 is formed in the triangle shape toward the downward direction. Further, the bolt 43 is passed through the second slot 34.

  As shown in FIG. 2, the clamp member 35 is made of stainless steel, a belt 36 that is curved in an arc shape so as to be wound around the exhaust pipe 50, and a plurality of screw holes 37 provided in the belt 36, The fastening member 38 is fixed to one end of the belt 36, and a worm 39 for adjusting the length of the belt 36.

  The fastening member 38 has a gap (not shown) below. The other end of the belt 36 is inserted into this gap. A screw portion (not shown) of a worm 39 is screwed into each screwing hole 37 formed from the other end side of the belt 36 to constitute a worm mechanism. Therefore, the exhaust pipe 50 can be easily and reliably tightened or loosened by the belt 36 and the support member 30 by rotating the worm 39 using a driver or the like.

  As shown in FIG. 5, the adjusting means 22 includes a first slot 41, a second slot 34, and a fixing member 42. As shown in FIGS. 2 and 6, the adjusting means 22 is provided at substantially opposing positions on both sides of the extending portion 12. As shown in FIG. 6, the fixing member 42 protrudes from the bolt 43, the spring washer 44, the washer 45, the spacer 46, the fixing metal 47, and the fixing metal 47 in order from the head side of the bolt 43. The E-ring 48 is mounted in the vicinity of the tip of the bolt 43 to prevent the bolt 43 from being pulled out.

  As shown in FIG. 7, the fixing bracket 47 includes a nut portion 47 a having a screw hole to be screwed with the bolt 43, and an engaging portion 47 b formed by bending the upper portion of the nut portion 47 a into a T-shape. The engaging portion 47 b is engaged with the second slot 34 at its T-shaped base. Accordingly, when the support member 30 is held at an arbitrary angle with respect to the main body 10, the fixing bracket 47 in which the engaging portion 47 b is inserted into the support member 30 is in a state where the rotation is restricted.

  In the first slot 41, the bolt 43 penetrates in a state where the first slot 41 is disposed between the washer 45 and the spacer 46. Within the extension range of the first slot 41, the position of the fixing member 42 can be freely determined in the direction of arrow B (axial direction) in FIG. Thereby, the first slot 41 and the fixing member 42 serve as a parallel direction sliding mechanism.

  In the second slot 34, the bolt 43 penetrates in a state where the second slot 34 is disposed between the spacer 46 and the fixing bracket 47. The main body 10 in which the first slot 41 is formed and the support member 30 in which the second slot 34 is formed are centered on the position where the bolt 43 penetrates in the direction of the arrow C (rotation direction) in FIG. It can rotate freely. Thus, the first slot 41, the second slot 34, and the fixing member 42 serve as an inclination angle adjusting mechanism.

  Further, within the extension range of the second slot 34, the position of the fixing member 42 can be freely determined in the direction of the arrow D (inclination angle direction) in FIG. Accordingly, the second slot 34 and the fixing member 42 serve as a tilt angle direction slide mechanism.

  Further, by rotating the bolt 43 screwed with the fixing bracket 47 clockwise, each of the bolt 43, the spring washer 44, the washer 45, the first slot 41, the spacer 46, the second slot 34, and the fixing bracket 47, respectively. The pressure between the contact surfaces can be increased. Accordingly, the support member 30 can be simultaneously fixed at an arbitrary position and angle with respect to the main body 10 adjusted by the parallel direction slide mechanism, the angle direction slide mechanism, and the angle direction slide mechanism.

Hereinafter, a procedure for attaching the muffler cutter 1 of the present embodiment to the exhaust pipe 50 will be described.
[1] The diameter of the belt 36 is expanded by rotating the worm 39 counterclockwise using a tool such as a screwdriver or a spanner.
[2] The exhaust pipe 50 is passed through the fixing means 21 and the inclined portion 51 of the exhaust pipe 50 is inserted into the insertion port 16.
[3] The worm 39 is rotated clockwise using a tool such as a screwdriver or a spanner so that the belt 36 is lightly fixed around the exhaust pipe 50.
[4] The position and angle of the main body 10 with respect to the exhaust pipe 50 are adjusted by the parallel direction slide mechanism, the tilt angle adjustment mechanism, and the tilt direction slide mechanism.
[5] While maintaining the position and angle adjusted in [4], further rotate clockwise using a tool such as a worm 39, a screwdriver or a spanner, etc., and firmly fix the belt 36 to the diameter of the exhaust pipe 50. Further, the bolt 43 of the adjusting means 22 is rotated clockwise using a tool such as a screwdriver or a spanner to firmly fix the position and angle of the main body 10 with respect to the exhaust pipe 50.

Hereinafter, the effect of the muffler cutter 1 of this embodiment is demonstrated.
Since the upper part of the extension part 12 of the main body 10 is open, the muffler cutter 1 has the main body 10 and the exhaust pipe even when mounted on the exhaust pipe 50 whose tip is inclined downward. 50 does not contact. Moreover, since the attachment means 20 which adjusts the fixed state of the main body 10 with respect to the exhaust pipe 50 is provided, the positional relationship of the main body 10 with respect to the exhaust pipe 50 can be freely adjusted while accommodating various sizes and shapes of the exhaust pipe 50. can do.

  For this reason, even when the front end portion is attached to the exhaust pipe 50 inclined downward, the main body 10 can be attached without inclining downward, and the exhaust pipe 50 is not required to be processed at the time of attachment.

  Furthermore, since the clamp member 35 constitutes a worm mechanism, the diameter of the clamp mechanism can be easily changed.

  Furthermore, since the muffler cutter 1 includes a parallel-direction slide mechanism constituted by the first slot 41 and the fixing member 42, the position of the main body 10 in the parallel direction with respect to the attachment means 20 can be easily adjusted.

  Further, the muffler cutter 1 includes an inclination angle adjusting mechanism including the first slot 41, the second slot 34, and the fixing member 42, so that the inclination angle of the main body 10 with respect to the attachment means 20 can be easily adjusted. it can.

  Furthermore, since the muffler cutter 1 includes the tilt angle direction slide mechanism constituted by the second slot 34 and the fixing member 42, the position of the main body 10 in the tilt angle direction with respect to the attachment means 20 can be easily adjusted.

  Further, the adjusting means 22 having the parallel direction sliding mechanism, the inclination angle adjusting mechanism, and the inclination angle direction sliding mechanism can be fixed at the same time only by tightening one bolt 43 included in the fixing member 42.

  In the present embodiment, the cylindrical portion 11 is configured in a cylindrical shape. However, the cylindrical portion is not limited to this configuration, and the cylindrical portion has a polygonal cross section (for example, a rectangular cylindrical shape) or an elliptical cross section. It is possible to configure in a cylindrical shape. Accordingly, the cross-sectional shape of the extending portion can be changed.

  In this embodiment, the main body 10 is formed using a stainless steel plate, but the cylindrical portion can use a metal plate other than stainless steel (for example, another iron alloy plate or aluminum alloy plate). .

  In this embodiment, the drain hole 15 is provided at one location near the exhaust port 14, but the position of the drain hole is not limited to the vicinity of the exhaust port, and a plurality of drain holes are provided. You may have.

  In this embodiment, although it attached to the exhaust pipe 50 which has the inclination part 51 which inclined downward, it can also attach to a straight exhaust pipe. In that case, the axis of the main body 10 of the muffler cutter 1 is attached to the exhaust pipe in an inclined state with respect to the exhaust pipe.

  Further, a rectifying device that rectifies the exhaust discharged from the exhaust pipe 50 and a purification device that purifies the exhaust discharged from the exhaust pipe 50 are provided on the inner wall of the cylindrical portion of the muffler cutter 1 of the present invention and the exhaust port 14. It is also possible.

It is a perspective view of the muffler cutter 1 concerning embodiment of this invention, and shows the state with which the exhaust pipe 50 was mounted | worn. It is a perspective view of the muffler cutter shown in FIG. It is a sectional side view of the muffler cutter shown in FIG. It is a perspective view of a supporting member. It is a side view of the muffler cutter shown in FIG. It is sectional drawing of the AA line shown in FIG. It is a perspective view of a fixture. It is a perspective view of the conventional muffler cutter, Comprising: The state with which the exhaust pipe was mounted | worn is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Muffler cutter 10 Main body 11 Cylinder part 12 Extension part 13 Notch part 14 Exhaust port 15 Drain hole 16 Insertion port 20 Attachment means 21 Fixing means 22 Adjustment means 30 Support member 31 Upper surface part 32 Hole 33 Side face part 34 Second slot 35 Clamp member 36 Belt 37 Screw hole 38 Fastening member 39 Worm 41 First slot 42 Fixing member 43 Bolt 44 Spring washer 45 Washer 46 Spacer 47a Nut portion 47b Engagement portion 47 Fixing bracket 48 Ring 50 Exhaust pipe 51 Inclined portion 60 Conventional Muffler cutter 70 exhaust pipe 80 mounting means

Claims (6)

A muffler cutter attached to the exhaust pipe of a vehicle,
A cylinder portion having a discharge port for discharging exhaust gas at one end, and an insertion port into which the tip of the exhaust tube is inserted when the muffler cutter is attached to the exhaust tube at the other end; A main body composed of an extending part extending in an open state from the other end of the cylindrical part,
In order to attach and fix the main body to the exhaust pipe, the mounting means provided above the extension portion,
The attachment means is connected to the support member having a top surface portion that supports a bottom surface of the exhaust pipe in a state where a distal end portion of the exhaust pipe is inserted into the insertion port, and the exhaust pipe A fixing means composed of a clamp member that can be fastened and changed in diameter, and an adjusting means that can adjust the position and angle of the mounting means with respect to the main body,
The adjusting means is provided so as to penetrate the first slot formed in the extending portion, the second slot formed in the side surface portion of the support member, and the first slot and the second slot. It consists of a fixed member,
The muffler cutter, characterized in that the fixing means and the adjusting means can attach and fix the main body to the exhaust pipe in a state suitable for the size and shape of the exhaust pipe . The muffler cutter according to claim 1 , wherein the clamp member includes a belt wound around the exhaust pipe and a worm mechanism capable of changing the diameter of the belt according to the diameter of the exhaust pipe. The adjusting means for adjusting the position in the parallel direction of the attachment means with respect to the axis of the body, according to claim 1 or 2 comprising a parallel slide mechanism composed of the fixed member and the first slot The muffler cutter described in 1. The adjusting means for adjusting the inclination angle of the attachment means with respect to the axis of the body, the claims comprising a tilt angle adjusting mechanism configured from the first slot and said second slot and said fixed member The muffler cutter according to any one of 1 to 3 . The adjusting means for adjusting the position in the tilt angle direction of the mounting means relative to the body, claims 1 comprises a tilt angle direction slide mechanism composed of the fixed member and the second slot 4 The muffler cutter in any one of. The adjusting means includes a parallel-direction slide mechanism configured by the first slot and the fixing member, an inclination angle adjusting mechanism configured by the first slot, the second slot, and the fixing member, 2. The muffler cutter according to claim 1 , further comprising an inclination angle direction sliding mechanism configured by two slots and the fixing member, and these mechanisms are simultaneously fixed by the single fixing member.

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