JP2007044820A - Incision tool for holding seal material and method for manufacturing holding seal material by using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an incision tool for a holding seal material capable of easily cutting a projecting part generated when press-fitting the holding seal material in a tubular shell after being wound on an exhaust gas processing body, and a method for manufacturing the holding seal material by using the same. <P>SOLUTION: This holding seal material of the exhaust gas processing body is constituted of a storing main body 12 having a storing part 12a constituted of side wall 12b and bottom surface 12c in contact with each of side surface and bottom surface of the holding seal material, and a lid body 13 arranged on an upper part of the storing main body 12. In the lid body 13, a first slit 13c passing through an upper bottom surface is provided. By inserting and moving a plany blade in the first slit 13c, an incision surface is formed at a side end part of the holding seal material stored in the storing part 12a. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a cutting tool for holding sealing material and a method of manufacturing a holding sealing material using the same, and more specifically, holding an exhaust gas treatment body that is wound around an exhaust gas treatment body and then press-fitted into a tubular shell. The present invention relates to a cutting jig for a sealing material and a method for manufacturing a holding sealing material using the same.

In general, the exhaust gas treatment apparatus is attached to an exhaust pipe of a vehicle and includes an exhaust gas treatment body 21 for purifying exhaust gas and a tubular shell 23 that accommodates the exhaust gas treatment body 21 as shown in FIG. A holding sealing material 14 having a predetermined thickness is disposed between the shell 23 and the exhaust gas treatment body 21 for the purpose of sealing a gap in the exhaust gas passage direction, displacement of the exhaust gas treatment body, and vibration absorption. Conventionally, a holding sealing material as described in Patent Document 1 is known. As shown in FIG. 13, the holding sealing material is prepared by cutting a sheet-like inorganic fiber mat 16 having a predetermined thickness and resilience into a predetermined shape such as a substantially rectangular shape. The holding sealing material cut into a predetermined shape is wound around the exhaust gas treatment body, and is press-fitted into the metal tubular shell together with the exhaust gas treatment body. Usually, the press-fitting of the exhaust gas treatment body into the shell is performed in the exhaust gas passage direction.
JP 2001-316965 A

  However, as shown in FIGS. 14 and 15, the holding sealing material press-fitted into the shell is subjected to exhaust gas treatment at the side end due to friction between the shell inner peripheral surface 23 a and the outer peripheral surface 14 j of the holding sealing material 14 during press-fitting. There has been a problem that positional displacement is likely to occur behind the body 21 in the press-fitting direction. Thereby, a protruding portion 14k having a substantially triangular cross section is formed at the side end portion of the holding sealing material 14, and a part of the inorganic fibers of the protruding portion 14k enters the exhaust gas treatment body 21 when the exhaust gas passes through the exhaust gas treatment. There was a problem that the body 21 was clogged. On the other hand, simply cutting off the protruding portion 14k of the holding sealing material 14 press-fitted into the shell 23 using a cutter or the like may damage the exhaust gas treating body 21 and the shell 23.

  The present invention has been made paying attention to such problems existing in the prior art. The object of the present invention is to provide a holding sealing material for an exhaust gas treatment body, which is capable of easily cutting off a protruding portion that is generated when the exhaust gas treatment body is wound into a tubular shell after being wound around the exhaust gas treatment body. An object of the present invention is to provide a cutting jig and a method for producing a holding sealing material using the same.

  In order to achieve the above object, an invention according to claim 1 is provided for a holding sealing material which is composed of a sheet-like inorganic fiber mat and is wound around an exhaust gas treatment body and then press-fitted into a tubular shell. In the cutting jig, a part of the housing part is formed by being disposed on the housing main body having a housing part composed of a side wall and a bottom surface in contact with the side surface and the bottom surface of the holding sealing material, and on the top of the housing part The upper end portion is provided with a first slit penetrating the upper bottom surface, and a side edge of the holding sealing material accommodated in the accommodating portion by inserting and moving a plate-like blade into the first slit. A cut surface is formed in the part.

  According to a second aspect of the present invention, in the incision jig for the holding sealing material according to the first aspect, a second slit is formed on the inner surface of the accommodating portion of the accommodating main body, and the second slit is an extension of the first slit. It is provided on the surface.

According to a third aspect of the present invention, in the cutting tool for holding sealing material according to the second aspect, the second slit is formed in a side wall of the housing portion.
According to a fourth aspect of the present invention, in the cutting jig for the holding sealing material according to any one of the first to third aspects, the upper surface portion is a lid body that is separable from the accommodating body.

  The invention according to claim 5 is the cutting jig for holding sealing material according to any one of claims 1 to 4, wherein the cutting surface is in contact with the inner peripheral surface of the shell of the holding sealing material. It is a surface connecting the surface and the side end surface opposite to the press-fitting direction into the shell.

  According to a sixth aspect of the present invention, in the incision jig for the holding sealing material according to the fifth aspect, the incision surface is intermediate in the thickness direction of the holding sealing material on the side end surface opposite to the press-fitting direction into the shell. It is formed by cutting from the contact surface side with the exhaust gas treating body from the line (T).

  The invention according to claim 7 is the cutting jig for the holding sealing material according to claim 5 or 6, wherein the cutting surface has a cutting angle (θ) at a side end surface of the holding sealing material of 30 to 60 °. It is formed by cutting.

  The invention according to claim 8 is an incision jig for a holding sealing material which is composed of a sheet-like inorganic fiber mat and is wound around an exhaust gas treatment body and then press-fitted into a tubular shell. The housing body includes a housing body having a housing portion composed of a side wall and a bottom surface respectively contacting the side surface and the bottom surface. The housing body is provided with a third slit penetrating the top surface of the housing body and the sidewall surface of the housing portion, When the plate-like blade is inserted and moved into the three slits, a cut surface is formed at the side end portion of the holding sealing material accommodated in the accommodating portion.

  According to a ninth aspect of the present invention, in the manufacturing method of the holding sealing material using the cutting jig for the holding sealing material according to the fourth aspect, the holding sealing material cut out from the inorganic fiber mat is accommodated in the accommodating portion of the accommodating main body. A step of placing the lid on the upper portion of the housing body, a step of inserting a plate-like blade into the first slit of the lid, and a side edge of the holding sealing material by sliding the plate-like blade A notch jig for holding sealing material comprising a step of forming a notch surface in the part was used.

  According to the present invention, in the holding sealing material for the exhaust gas treatment body, the protrusion produced when the exhaust gas treatment body is pressed into the tubular shell after being wound around the exhaust gas treatment body can be easily cut off.

Hereinafter, an embodiment of a cutting tool for holding sealing material embodying the present invention will be described with reference to FIGS.
As shown in FIGS. 1 to 8, the holding sealing material cutting jig (hereinafter referred to as “cutting jig”) 11 according to the present embodiment is a holding sealing material (hereinafter referred to as “holding sealing material”) of the exhaust gas treating body. 14 includes a housing body 12 having a housing portion 12a capable of housing 14 and a lid body 13 as an upper surface portion disposed on the top of the housing portion 12a. The housing main body 12 is made of a metal such as iron, stainless steel, or brass and has a certain thickness and a planar shape formed into a substantially rectangular shape. The accommodating portion 12 a is formed in the accommodating main body 12 by being formed into a concave shape at the center of the upper surface 12 d of the accommodating main body 12. The shape of the accommodating portion 12a is substantially the same shape as the holding sealing material 14 to be accommodated, and the side walls 12b and the bottom surface 12c constituting the accommodating portion 12a are formed so as to be in contact with the side surfaces 14a and the bottom surface 14b of the holding sealing material 14, respectively. . When the holding sealing material 14 is accommodated in the accommodating portion 12a, the upper surface 14c of the holding sealing material 14 is preferably below the upper surface 12d of the accommodating main body 12. Of each side wall 12b constituting the accommodating portion 12a, a first side in contact with a protruding end surface 14d (a side end surface opposite to the press-fitting direction) on which the protruding portion 14k is formed when the holding seal material 14 is press-fitted into the shell 23. A second slit 12f extending in the longitudinal direction is formed in one side wall 12e. The second slit 12f is formed by cutting obliquely downward from the surface of the first side wall 12e. The second slit 12f is preferably cut from below the intermediate line T1 in the height direction of the first side wall 12e.

  The cover body 13 is formed in a substantially rectangular shape by a metal such as iron, stainless steel, brass or the like. It is preferable that the lid body 13 has substantially the same planar shape as the housing body 12 in order to facilitate alignment when the holding sealing material 14 is cut. The thickness of the lid 13 is appropriately set depending on the material constituting the lid 13 and the size of the holding sealing material 14. The lid 13 is formed with a first slit 13c penetrating from the top surface 13a to the bottom surface 13b of the lid 13 in the longitudinal direction. The first slit 13c is inclined from the upper surface 13a of the lid 13 so as to be present on the extended surface of the second slit 12f formed in the first side wall 12e when the lid 13 is disposed on the upper portion of the housing body 12. It is cut down. That is, the first slit 13c and the second slit 12f are present on the same surface when the lid 13 is disposed on the upper portion of the housing body 12. As shown in FIGS. 4 and 5, the plate-like blade 15 is inserted into the first slit 13 c and the second slit 12 f and is slid to form a cut surface 14 f on the protruding end surface 14 d of the holding sealing material 14. Is done. The first slit 13 c and the second slit 12 f are formed corresponding to the cut surface 14 f of the holding sealing material 14. That is, the cutting angle θ1 and the cutting position of the first slit 13c with respect to the upper surface 13a of the lid 13 and the cutting angle θ2 and the cutting position of the second slit with respect to the surface of the first side wall 12e are the cutting surface 14f of the holding sealing material 14 described later. Is appropriately set according to the cutting angle θ3 and the cutting position. For example, when the cutting angle θ3 of the holding sealing material 14 is 30 °, the cutting angle θ1 of the first slit 13c is 60 °, and the cutting angle θ2 of the second slit 12f is 150 °.

The lid 13 is disposed on the upper portion of the housing body 12 by bringing the bottom surface 13 b into contact with the upper surface 12 d of the housing body 12. The lid 13 forms a part of the accommodating portion 12a by the bottom surface 13b.
As shown in FIG. 13, the holding sealing material 14 accommodated in the accommodating main body 12 has a substantially rectangular planar shape, and is produced by cutting from a sheet-like inorganic fiber mat 16 having a certain thickness. As shown in FIGS. 12 and 13, when the holding sealing material 14 is wound around the exhaust gas treating body 21, in order to completely close the gap in the longitudinal direction of the shell 23, for example, a recess 14g is formed at one end in the longitudinal direction. A convex portion 14h that fits (engages) with the concave portion 14g is formed at the other end. When the side surfaces of the concave portion 14g and the convex portion 14h come into contact with each other, the longitudinal gap of the shell 23 can be closed. The inorganic fiber mat 16 from which the holding sealing material 14 is cut is made of felt or non-woven fabric so as to have a certain resilience. Examples of the fiber material used for the inorganic fiber mat 16 include ceramic fibers such as alumina fiber, alumina-silica fiber, silica fiber, and glass fiber. The inorganic fiber mat 16 is impregnated with a latex such as acrylic resin, water-soluble resin such as polyvinyl alcohol, acrylic rubber, nitrile rubber or the like as an organic binder so as to have a predetermined thickness and repulsion before cutting and molding. Also good. The thickness of the holding sealing material 14 is appropriately set depending on the type of the inorganic fiber mat 16 to be applied, the type of the exhaust gas treatment body 21, the type of the exhaust gas treatment body, and the like. The inorganic fiber mat 16 may be subjected to needle punching in order to prevent bulkiness in the thickness direction. As shown in FIGS. 14 and 15, when the holding sealing material 14 before cutting is pressed into the shell 23, the press-fitting direction is caused by friction between the shell inner peripheral surface 23 a and the outer peripheral surface 14 j of the holding sealing material 14. At the opposite side end, a displacement occurs behind the upper end of the exhaust gas treating body 21 in the press-fitting direction. Thereby, the projecting portion 14k having a substantially three-shaped cross section is formed.

  As shown in FIGS. 6 and 7, the holding sealing material 14 cut by the cutting jig 11 of the present embodiment is cut on the protruding side end surface 14 d which is the side end surface opposite to the press-fitting direction into the shell 23. A cut surface 14f constituting the notch portion 14m is formed. The cutout portion 14m corresponds to at least a part of the protruding portion 14k generated in the holding sealing material 14 before the cut surface 14f is formed. That is, by forming the cut surface 14f, it is possible to reduce or remove the protrusion 14k that is generated when the holding sealing material 14 is press-fitted into the shell 23.

  The cut surface 14f is preferably connected to the projecting side end surface 14d from the outer peripheral surface 14j of the holding sealing material 14, which is a contact surface with the shell inner peripheral surface 23a, so that the projecting portion 14k corresponds to the notched portion 14m after the cut. Formed. More preferably, the cut surface 14f is formed by cutting from the inner peripheral surface 14n side, which is a contact surface with the exhaust gas treatment body 21, from the thickness direction intermediate line T2 of the holding sealing material 14 at the protruding side end surface 14d. More preferably, the cut surface 14f is formed by cutting the protruding side end surface 14d from the side closer to the inner peripheral surface 14n side which is a contact surface with the exhaust gas treating body 21.

  The cut angle θ3 at the protruding side end face 14d when the cut face 14f is cut is preferably 30 to 60 °, more preferably 35 to 55 °, and most preferably 40 to 50 °. If it is smaller than 30 °, the protrusion 14k cannot be removed sufficiently. On the other hand, if it is larger than 60 °, the area to be cut out becomes large, which may affect the retention of the exhaust gas treating body 21 of the holding sealing material 14.

Next, the operation of the cutting jig 11 configured as described above will be described.
First, the holding sealing material 14 cut out from the inorganic fiber mat 16 is disposed in the housing portion 12 a of the housing body 12. In that case, it accommodates so that the protrusion side end surface 14d of the holding sealing material 14 may contact | connect the 1st side wall 12e in which the 2nd slit is formed. Next, the lid 13 is disposed on the upper portion of the housing body 12. In that case, it arrange | positions so that the 1st slit 13c may be located on the same surface (extended surface) as the 2nd slit 12f. Next, the plate-like blade 15 is inserted into the first slit 13c. In that case, it inserts until the blade edge | tip of the plate-shaped blade 15 arrives at the front-end | tip part of the 2nd slit 12f. Then, by sliding the blade portion of the plate-like blade 15 in the traveling direction, a planar cut surface 14f is formed at the side end portion opposite to the press-fitting direction of the holding sealing material 14. Thereby, the notch part 14m is formed in the position corresponding to the protrusion part 14k formed at the time of the press injection to the shell 23.

  The holding sealing material 14 from which at least a part of the protruding portion 14k is cut by the cutting jig 11 is wound around the outer peripheral surface of the exhaust gas treating body 21, as shown in FIG. 12, and the concave portion 14g and the convex portion 14h are engaged. At this time, it is wound around the exhaust gas treating body 21 so that the cut surface 14f faces the outer peripheral surface side. In order to maintain the engaged state of the engaging portions of the concave portion 14g and the convex portion 14h, a seal 22 or the like may be attached. The exhaust gas treating body 21 around which the holding sealing material 14 is wound is press-fitted into the cylindrical shell 23 with the cut surface 14f facing away from the press-fitting direction. As shown in FIG. 8, the press-fitted holding sealing material 14 is formed by friction with the shell inner peripheral surface 23a because the notch portion 14m is formed by the cut surface 14f at a position corresponding to the protruding portion 14k. The protrusion 14k can be reduced or eliminated.

According to the cutting jig 11 of the present embodiment, the following effects can be obtained.
(1) In this embodiment, the cutting tool 11 is inserted from the housing body 12 capable of housing the holding sealing material 14 therein and the lid body 13 disposed on the housing body 12 and having the first slit 13c. Configured. Therefore, it is possible to easily cut out the protruding portion 14k that is generated when the plate-like blade is press-fitted into the shell only by inserting and moving the plate blade into the first slit 13c.

(2) Moreover, since the part corresponding to the protrusion part 14k is cut out before shell accommodation, there is no possibility of damaging the exhaust gas treating body 21 and the shell inner peripheral surface.
(3) In the present embodiment, a second slit 12 f through which the plate-like blade inserted from the first slit 13 c is inserted is formed on the inner surface of the housing portion 12 a of the housing body 12. Therefore, by inserting and moving the plate-like blade 15 into the first slit 13c and the second slit 12f, the notch portion 14m can be reliably formed without causing any uncut portion by the plate-like blade.

  (4) In the present embodiment, the lid body 13 is separated from the housing body 12. Therefore, the holding sealing material 14 can be easily disposed in the housing portion 12a, and positional displacement of the holding sealing material 14 in the housing portion 12a can be prevented during cutting.

  (5) In this embodiment, the slit of the cutting jig 11 is configured to correspond to the cutting surface 14f that connects the outer peripheral surface 14j that is the contact surface of the shell inner peripheral surface 23a of the holding sealing material 14 and the protruding side end surface 14d. Therefore, the cutout portion 14m formed by the slit can correspond to the protruding portion 14k.

  (6) In the present embodiment, the cut surface 14f is an intermediate line (T2) in the thickness direction of the holding sealing material 14 on the protruding side end surface 14d which is the side end surface of the holding sealing material 14 opposite to the press-fitting direction in the shell 23. ) From the contact surface (inner peripheral surface 14n) side with the exhaust gas treating body 21. Accordingly, the corresponding notch portion 14m can be formed by the protruding portion 14k, and the length of the holding sealing material 14 in the press-fitting direction (the width of the holding sealing material 14) is not likely to be shortened.

  (7) In the present embodiment, the cutting surface 14f is formed with a slit of a cutting tool so that the cutting angle θ3 on the protruding end surface 14d of the holding sealing material 14 is cut at 30 to 60 °. Therefore, it is possible to form the notch portion 14m corresponding to the protruding portion 14k without affecting the operation of the exhaust gas treating body 21 such as retention.

  (9) In the holding sealing material 14 manufactured by the cutting jig 11 of the present embodiment, the protruding portion 14k is reduced or eliminated. Therefore, since the inorganic fibers that enter the exhaust gas treating body 21 when the exhaust gas passes can be reduced, the exhaust gas treating body 21 can be prevented from being clogged.

(10) Further, since the plate-like blade moves in the first slit 13c, the cut surface 14f can be formed to be flat.
(11) In this embodiment, the shape of the holding portion 12a is configured to be substantially the same as the shape of the holding sealing material 14 that stores the shape. Therefore, there is no possibility that the left and right orientations of the holding sealing material 14 are mistaken when accommodated in the accommodating body 12.

In addition, you may change the said embodiment as follows.
As another example of the present invention, the second slit 12f may not be formed as shown in FIG. Even in such a configuration, the cutting surface 14f can be formed on the protruding end surface 14d of the holding sealing material by inserting and moving the plate-like blade 15 into the first slit 13c.

  -As another example of this invention, the slit formed in the incision jig 11 may be formed toward inner side downward. For example, as shown in FIG. 10, a third slit 12g that penetrates from the upper surface 12d of the housing main body 12 to the surface of the first side wall 12e may be formed by cutting. The cutting surface 14f is formed by inserting and moving the plate blade into the third slit 12g. In such a configuration, the cutting operation can be performed without using the lid. In addition, the cutting surface 14f cut by another example shown in FIG. 10 is upside down from the above embodiment.

  -As another example of this invention, as FIG. 11 shows, the 4th slit 12h may be further formed in the bottom face 12c on the extension surface of the 3rd slit 12g. In such a configuration, it is possible to reliably form the cut surface 14f without causing uncut portions in the same manner as the action caused by the second slit 12f. Furthermore, you may attach the cover body 13 as FIG. 11 shows. The lid body 13 is formed with a fifth slit 13d penetrating from the upper surface 13a to the bottom surface 13b obliquely inwardly downward and communicating with the third slit 12g. By using the lid 13, it is possible to reliably prevent misalignment, protrusion, and the like of the holding sealing material 14 at the time of cutting.

  In the above embodiment, the lid body 13 may be configured integrally with the housing body 12. Further, the lid body 13 may be connected to the housing body 12 by a hinge or the like and configured to be openable and closable with respect to the housing portion 12a. Moreover, when comprised integrally, the opening part connected to the accommodating part 12a may be provided in the side surface of the accommodating main body 12, and the holding sealing material 14 may be comprised in the accommodating part 12a from this opening part. .

  In the above embodiment, the cut surface 14f may be a surface connecting the outer peripheral surface 14j and the inner peripheral surface 14n of the holding sealing material 14. In that case, the slit formed in the cutting jig 11 is formed in the cover body 13 and the bottom surface 12c of the accommodating part 12a.

  In the above embodiment, the shape of the accommodating portion 12a is configured to be substantially the same as the shape of the holding sealing material 14 having irregularities. However, it does not need to be configured to be substantially the same, and may be configured such that the first side wall 12e where the slit is formed and the protruding side end surface 14d where the notch is formed are in contact.

  In the above embodiment, the planar cut surface 14 f is formed by the plate-like blade 15. However, the cut surface may not be flat, and may be formed into a curved surface by using, for example, a curved slit and a cutting blade.

-In the said embodiment, the number of the holding sealing materials 14 cut out from the inorganic fiber mat 16 is not specifically limited, What is necessary is just 1 or 2 or more.
In the above embodiment, the exhaust gas treating body in which the holding sealing material 14 is used may be a diesel particulate filter (DPF) or a catalyst carrier carrying a catalyst for purifying exhaust gas.

In the above embodiment, a tapered flange may be attached to the end of the shell 23 opposite to the press-fitting side before the holding sealing material 14 is inserted.
Next, technical ideas that can be grasped from the above-described embodiment and other examples will be described below together with their effects.

  (A) The cutout portion at the side end formed by the cut surface is a protrusion formed when the holding seal material before the cutout portion is wound around the exhaust gas treatment body and press-fitted into the tubular shell. A cutting tool for holding sealing material corresponding to at least a part. According to the invention described in (a), it is possible to reduce or remove the protruding portion that causes clogging of the exhaust gas treating body.

The expansion | deployment perspective view of the incision jig for holding sealing materials of this embodiment. The top view of the incision jig for holding sealing materials of this embodiment. The AA sectional view of the incision jig for holding sealing materials of this embodiment. The perspective view at the time of cutting a holding | maintenance sealing material using a plate-shaped blade in the cutting jig for holding | maintenance sealing materials of this embodiment. AA sectional view at the time of cutting a holding sealing material using a plate blade in a cutting jig for holding sealing material of this embodiment. The holding sealing material cut with the cutting jig for holding sealing material of this embodiment. (A) Top view, (b) Rear view, (c) Side view. The principal part enlarged view of the holding sealing material cut with the cutting jig for holding sealing materials of this embodiment. The cross-sectional enlarged view in the protrusion side end surface when the holding sealing material cut | disconnected with the cutting jig for holding sealing materials of this embodiment is enclosed in the shell. Sectional drawing of the cutting jig for holding sealing materials of another embodiment of this invention. Sectional drawing of the cutting jig for holding sealing materials of another embodiment of this invention. Sectional drawing of the cutting jig for holding sealing materials of another embodiment of this invention. A holding sealing material enclosed in a shell together with an exhaust gas treatment body. A holding sealing material cut from an inorganic fiber mat. A conventional holding sealing material enclosed in a metal shell together with an exhaust gas treatment body. The cross-sectional enlarged view in the protrusion side end surface of the holding sealing material in FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Cutting jig for holding | maintenance sealing material of waste gas processing body, 12 ... Accommodating main body, 12a ... Accommodating part, 12b ... Side wall, 12c ... Bottom surface, 12e ... 1st side wall, 12f ... 2nd slit, 12g ... 3rd slit , 13 ... Lid, 13a ... Upper surface, 13b ... Bottom surface, 13c ... First slit, 14 ... Holding sealing material, 14a ... Side surface, 14b ... Bottom surface, 14d ... Projection side end surface, 14f ... Cut surface, 14j ... Outer surface, 14m ... Notch part, 14n ... Inner peripheral surface, 15 ... Plate-shaped blade, 16 ... Inorganic fiber mat, 21 ... Exhaust gas treatment body, 23 ... Shell, 23a ... Shell inner peripheral surface.

Claims (9)

In a cutting tool for a holding sealing material, which is composed of a sheet-like inorganic fiber mat and wound around an exhaust gas treatment body, and then press-fitted into a tubular shell,
Consists of a housing body having a housing portion composed of a side wall and a bottom surface in contact with a side surface and a bottom surface of the holding sealing material, and an upper surface portion forming a part of the housing portion by being disposed on the top of the housing portion. The upper surface portion is provided with a first slit penetrating the upper bottom surface, and a plate-like blade is inserted into the first slit and moved to move to a side end portion of the holding sealing material accommodated in the accommodating portion. A cutting jig for holding sealing material in which is formed.   The notch jig for holding sealing materials according to claim 1, wherein a second slit is formed on an inner surface of the housing portion of the housing body, and the second slit is provided on an extended surface of the first slit.   The cutting tool for holding sealing material according to claim 2, wherein the second slit is formed in a side wall of the housing portion.   The cutting tool for holding sealing material according to any one of claims 1 to 3, wherein the upper surface portion is a lid body separable from the housing main body.   The cut surface is a surface that connects a contact surface of the holding sealing material with the inner peripheral surface of the shell and a side end surface opposite to the press-fitting direction into the shell. A cutting jig for the holding sealing material according to claim 1.   The cut surface is formed by cutting from the contact surface side with the exhaust gas treatment body from the thickness direction intermediate line (T) of the holding sealing material on the side end surface opposite to the press-fitting direction into the shell. A cutting jig for the holding sealing material according to claim 5.   The cutting tool for holding sealing material according to claim 5 or 6, wherein the cutting surface is formed by cutting at a cutting angle (θ) of 30 to 60 ° at a side end surface of the holding sealing material. In a cutting tool for a holding sealing material, which is composed of a sheet-like inorganic fiber mat and wound around an exhaust gas treatment body, and then press-fitted into a tubular shell,
The holding main body includes a housing body having a housing portion composed of a side wall and a bottom surface that are in contact with the side surface and the bottom surface, respectively. An incision jig for a holding sealing material that is provided and has a cutting surface formed at a side end portion of the holding sealing material accommodated in the accommodating portion by inserting and moving a plate-like blade into the third slit. In the manufacturing method of the holding sealing material using the cutting jig for holding sealing materials according to claim 4,
A step in which the holding sealing material cut out from the inorganic fiber mat is accommodated in the accommodation portion of the accommodation body, a step of placing the lid on the upper portion of the accommodation body, and a plate-like blade in the first slit of the lid A method of manufacturing a holding sealing material using a cutting tool for holding sealing material, comprising a step of inserting, and a step of forming a cutting surface at a side end of the holding sealing material by sliding the plate blade.

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