JP2005146853A - Mounting device for canister - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate attachment work for mounting a canister on a vehicle body. <P>SOLUTION: A suction port 6, a purge port 7 and an atmospheric air port 8 are provided on an side wall of a case 2 forming the canister 1. A plurality of locking members 12, 13 are projectingly provided and at least one bolt hole 14 is formed on an upper wall 11 of the case 2. Locking holes corresponding to locking members 12, 13 and a bolt hole corresponding to a bolt hole 14 are formed on a vehicle body side plate member 17 on which the canister 1 is mounted. The locking members 12, 13 are locked on the plate member by being inserted in the locking holes of the plate member and being moved in a horizontal direction. The canister 1 is mounted on the plate member by a bolt which passes through the bolt hole 14 of the canister side 14 and the bolt hole of the plate member side after the locking. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a canister mounting device for mounting a canister that adsorbs evaporated fuel generated from a fuel tank of an automobile to a vehicle body.

In a canister that adsorbs and collects evaporated fuel generated from a fuel tank of an automobile and purges the adsorbed and evaporated fuel to an intake cylinder of an engine, as a mounting device for attaching the canister to the vehicle body side of the automobile, A bracket is fixed to the lower surface of the steel plate and a bolt hole is formed in the bracket. Further, a bolt hole that penetrates the canister is formed on the canister side, and the bolt is inserted into both the bolt holes and the nut is tightened. 2. Description of the Related Art A canister mounting device is known in which a canister is mounted on a vehicle body side (see Patent Document 1).
JP 2001-349252 A

  In the conventional mounting device, the operator must tighten the bolt with the other hand while the canister is positioned with one hand and the bolt hole is positioned and held in the bolt hole on the bracket side. Have difficulty. In addition, in the mounting with only the bolts, the canister has a mounting structure with a plurality of bolts so that the canister does not rotate in the mounted state, and positioning of a plurality of bolt holes is required, and the mounting work is further difficult. is there.

Furthermore, the positioning operation in such an installation operation is more difficult because the bolt hole on the bracket side is difficult to see due to the presence of the canister.
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a canister mounting device that solves the above-described conventional problems and can easily perform a canister mounting operation on the vehicle body side.

  In order to solve the above-mentioned problem, the invention according to claim 1 is provided with a suction port, a purge port and an atmospheric port on the side wall of the case forming the canister, and a plurality of locking members projecting from the upper wall of the case. And forming at least one bolt hole, forming a locking hole corresponding to the locking member and a bolt hole corresponding to the bolt hole in a plate-like member on the vehicle body side to which the canister is attached, The upper piece and the vertical piece are formed in an inverted L shape, and are inserted into the locking holes of the plate-like member and then moved in the horizontal direction, so that the locking member is fitted and positioned on the plate-like member. In this positioning state, both the bolt holes are matched with each other, and the canister and the plate-like member are connected with bolts through the matched bolt holes.

  The invention according to claim 2 is the invention according to claim 1, wherein a locking piece is provided on one side of the fitting space formed on the lower side of the upper piece in the inverted L-shaped locking member, The locking hole is formed by an insertion hole into which the locking member is inserted and a locking groove into which the locking piece is inserted by moving the locking member in the horizontal direction on the side where the locking piece is located. It is a thing.

  The invention described in claim 3 is the invention according to claim 2, wherein a rib is formed on the lower surface of the upper piece of the locking member.

  The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein a bolt insertion space is formed below the bolt hole formed in the upper wall on the canister side, and the bolt insertion space is formed. The peripheral wall that forms is integrally connected to the partition plate provided in the canister.

  According to the first and second aspects of the present invention, in the mounting operation to the vehicle body when the canister is mounted on the vehicle body, the locking member is inserted into the locking hole formed in the plate-like member on the vehicle body side and then horizontally. By moving, the canister is positioned so that the bolt hole on the canister side matches the bolt hole on the plate-like member side. Therefore, the mounting work with the bolts can be easily performed, and the mounting workability of the canister to the vehicle body becomes easy.

Furthermore, according to the invention described in claim 3, by providing the rib, it is possible to prevent rattling in a state where the canister is attached to the plate-like member.
Furthermore, according to the invention described in claim 4, the rigidity of the bolt hole on the canister side can be increased, vibration can be reduced, and the mounting strength can be increased.

  The best mode for carrying out the present invention will be described with reference to the embodiments shown in the drawings.

  1 to 7 show a first embodiment of the present invention. FIG. 1 is a plan view of a canister, FIG. 2 is a sectional view taken along line MM of FIG. 1, and FIG. 3 is a vehicle body side member to which the canister is attached. 4 is a plan view of the plate-like member and a view showing the canister by a broken line, FIG. 4 is a vertical cross-sectional view of a mounting portion where the canister is attached to the plate-like member, and FIG. 6 is a perspective view in which the locking member is attached to the locking hole, and FIG. 7 is a sectional view taken along line NN in FIG.

  The resin case 2 of the canister 1 is formed in a U-shape when viewed from above, and a first chamber 4 and a second chamber 5 are arranged in parallel inside the case 2 and between the inner walls 4a and 5a of the case 2. An air pump module 10 is disposed in the space. Further, a partition plate 3 is provided between the first chamber 4 and the second chamber 5. The partition plate 3 is disposed on the center line of the air pump module 10. The first chamber 4 and the second chamber 5 partitioned by the partition plate 3 are filled with an adsorbent made of activated carbon or the like. In addition, on one side surface of the canister 1, that is, on one side wall of the first chamber 4, a suction port 7 communicating with a fuel tank and the like and a purge port 6 communicating with an intake passage of the engine are provided. An atmospheric port 8 that opens to the atmosphere is provided on one side wall of the chamber 5. Further, the other side portions of the first chamber 4 and the second chamber 5 are communicated with each other through a chamber 9.

The canister 1 as a whole is formed in a flat shape whose height H1 is shorter than the lateral width L1.
Two locking members 12 and 13 are provided on the upper wall 11 of the case 2 in the canister 1 so as to protrude upward. The locking members 12 and 13 are arranged in the front-rear direction from the center (center of gravity) of the canister 1 (in FIG. 1, the flow direction AB of the evaporated fuel in the first chamber 4 and the second chamber 5 is the front-rear direction). And is displaced in both the left and right directions (the direction CD perpendicular to the front and rear direction in the plane is the left and right direction).

  One bolt hole 14 is formed in the upper wall 11 of the case 2. The one bolt hole 14 is provided at a position displaced from the central portion to the other side in the left-right direction, and is provided on the center line of the air pump module 10. A bolt insertion space 16 that is surrounded by a wall 15 and that is open at the lower end is formed below the bolt hole 14. Further, the wall 15 is formed integrally with the partition wall 3.

The locking members 12 and 13 will be described with reference to FIGS. 5 to 7 show one locking member 12.
The locking member 12 is formed in a reverse L-shape in which one of the front and rear directions A-B is opened and the other is closed by the vertical piece 12b, leaving an upper piece 12a on a rectangular protrusion as viewed from above. The fitting space 12d is formed in a hook shape. Furthermore, the fitting space 12d has one of its left and right directions CD opened and the other closed with a locking piece 12c. 12e shows the opening part in the front-back direction AB, 12f shows the opening part in the left-right direction CD. On the upper surface of the fitting space 12d, that is, on the lower surface of the upper piece 12a, a plurality of ribs 12g that are long in the left-right direction CD are arranged in parallel in the illustrated example. The locking member 12 is integrally formed with the upper wall 11 of the case 2 with resin. A vertical width L2 of the fitting space 12d is formed to be substantially equal to the plate thickness so that a plate-like member 17 on the vehicle body side, which will be described later, is pressed against the rib 12g and fitted almost together.

The other locking member 13 is also formed in the same manner as the one locking member 12, and as shown in FIG. 1, the front and rear openings 12e and 13e face the same direction. Further, the locking pieces 12c, 13c of the both locking members 12, 13 are provided so as to face each other. Further, the vertical pieces 12b and 13b of the locking members 12 and 13 are also formed on the same side.
The plate-like member 17 on the vehicle body side to which the canister 1 is attached is a metal plate floor plate or the like that forms the vehicle body.

  As shown in FIG. 3, the plate-like member 17 is formed with locking holes 18 and 19 for locking the locking members 12 and 13 through the front and back. The locking holes 18 and 19 are inserted into the insertion holes 18a and 19a, and the insertion holes 18a and 19a are sized so that the rectangular locking members 12 and 13 can be easily inserted. A locking groove 18b formed by being deviated to one of the insertion holes 18a, 19a in the left-right direction so that the locking pieces 12c, 13c are fitted by moving in the horizontal direction (front-rear direction) from the state. 19b.

  The length L3 in the front-rear direction of the locking grooves 18b, 19b is formed to be equal to the length L4 in the front-rear direction of the fitting spaces 12d, 13d in the locking members 12, 13, and the width L5 of the locking grooves 18b, 19b. Is formed substantially equal to the thickness L6 of the locking pieces 12c, 13c so that the locking pieces 12c, 13c of the locking members 12, 13 fit almost together. Further, the side surfaces 18c and 19c of the insertion holes 18a and 19a that contact the outer surfaces of the locking pieces 12c and 13c in the locking members 12 and 13 and the side surfaces 18d and 19d of the locking grooves 18b and 19b are formed flush with each other. Has been.

  The insertion holes 18a and 19a of the both locking holes 18 and 19 are formed at the same positions as the both locking members 12 and 13, and the both locking members 12 and 13 are indicated by an arrow F shown in FIG. After being inserted into the insertion holes 18a and 19a from the lower surface side of the plate-like member 17, by moving in the horizontal direction indicated by the arrow G, the locking pieces 12c and 13c of the locking members 12 and 13 as shown in FIG. Is fitted into the locking grooves 18b and 19b, and the front end surfaces H of the locking pieces 12c and 13c of the locking members 12 and 13 are in contact with the front end surfaces I of the locking grooves 18b and 19b. The front surfaces of the vertical pieces 12b and 13b, that is, the rear surfaces J of the fitting spaces 12d and 13d abut against the front end surfaces K of the insertion holes 18a and 19a in the locking holes 18 and 19, and the front and rear of the canister 1 with respect to the plate member 17 Positioning and temporary holding It has become to so that.

  As shown in FIGS. 3 and 4, one bolt hole 20 is formed in the plate-like member 17. As described above, the bolt hole 20 is formed on the canister 1 side in a state where both the locking members 12 and 13 are fitted in the both locking holes 18 and 19 and horizontally moved and positioned. 14 is formed at a position that matches 14.

  In order to attach the canister 1 to the plate-like member 17 of the vehicle body in the above structure, first, as shown by the arrow F in FIG. 5, the two locking members 12 and 13 fixed to the canister 1 are first attached to the plate-like member 17. Are inserted into the insertion holes 18a and 19a from the lower surface side, and then both the locking members 12 and 13 are moved in the horizontal direction together with the canister 1 as indicated by an arrow G.

  As a result, the locking pieces 12c, 13c of the locking members 12, 13 are fitted into the locking grooves 18b, 19b as shown in FIG. A mounting position is determined. Further, when a part 17a of the plate-like member 17 is fitted into the fitting space 12d, the canister 1 is positioned with respect to the vertical direction and temporarily held. By this positioning, the bolt hole 14 on the canister 1 side and the bolt hole 20 of the plate-like member 17 coincide. Next, as shown in FIG. 4, the bolts 21 are inserted into the bolts 14 and 20 through the bolt insertion space 16, the nuts 22 are tightened on the bolts 21, and the canister 1 is attached to the plate-like member 17 on the vehicle body side.

  With such attachment, the operator can first position and temporarily hold the canister 1 and then perform bolt tightening without holding the canister 1 by hand. Easier). Even if it is difficult to see the locking holes 18 and 19 by the canister 1 during positioning work, it is easy to insert both the locking members 12 and 13 into the insertion holes 18a and 19a, and after the insertion, the canister 1 is simply moved. Since the positioning can be performed accurately, the bolts 14 and 20 can be positioned accurately and easily as compared with the conventional structure, and the mounting work is facilitated.

  Further, in a state in which both the locking members 12 and 13 are attached, the ribs 12g and 13g press the part 17a of the plate-like member 17 fitted in the fitting spaces 12d and 13d, and rattling after the attachment is prevented. .

  The plate-like member 17 in the embodiment is a floor plate of the vehicle body. The locking holes 18 and 19 and the bolt holes 20 are directly formed in the floor plate, and the canister 1 is directly connected to the floor plate of the vehicle body without using a bracket. It is intended to be attached to. By mounting the canister 1 directly on the floor of the vehicle body without using a bracket in this way, the ground height of the canister (from the ground to the lower surface of the canister can be reduced as compared with the conventional structure in which the canister is mounted via the bracket. In addition to preventing the canister from hitting the curbstone and damaging it while traveling, the bracket can be mounted at a low cost.

  However, the present invention may be a bracket in which the plate-like member 17 is attached to the vehicle body, and in this case as well, the ease of canister attachment as described above can be exhibited.

FIG. 8 shows a second embodiment. A predetermined angle α1 is obtained by opening the surfaces 12i and 12j on the opening 12e side of the upper piece 12a and the lower piece 12h of the locking member 12 of the first embodiment in a trumpet shape. The fitting space 12d of the locking member 12 and the plate-like member 17 on the vehicle body side can be easily fitted. The other locking member 13 is formed in the same manner. The other structure is the same as that in the first embodiment.

  9 and 10 show a third embodiment. The lower surface 12i of the surface on the opening 12e side in the second embodiment of FIG. 8 is forward (outside) from the front end surface H portion. The inclined surface descends toward the surface, and the inclination angle α2 is smaller than the inclination angle α1 of the embodiment shown in FIG. The inclination angle α1 is desirably 45 degrees or less.

Thus, by forming the surface 12i, as shown in FIG. 10, when the locking members 12 and 13 are inserted into the insertion holes 18a and 19a of the plate member 17 and moved forward, the plate member 17 first hits the surface 12i, and then gently slides on the surface 12i and is guided to the opening 12e, and then guided to the surface 12j and inserted into the fitting space 12d. Therefore, according to the third embodiment, the fitting operation of the locking members 12 and 13 to the plate-like member 17 becomes easier than in the second embodiment of FIG.
Other structures are the same as those in the first and second embodiments.

  11 and 12 show a fourth embodiment. The lower piece 12h in the second embodiment of FIGS. 9 and 10 is projected forward (outside) from the front end face H by a predetermined amount L7, and the protrusion is shown in FIGS. The tip surface of the portion 12k is formed on an inclined surface substantially the same as the surface 12i in FIG. The protrusion amount L7 of the protrusion 12k is set to be larger than the gap L8 between the rear surface of the locking member 12 and the rear surface of the locking hole 18 shown in FIG.

According to the fourth embodiment, when the locking member 12 is fitted into the locking hole 18, the plate-like member 17 hits the flat upper surface of the protruding portion 12k, and then the locking member 12 is moved in the horizontal direction. When sliding, the upper surface of the projecting portion 12k slides into the fitting space 12d, so that the plate-like member 17 is less likely to hit the surface 12j of the upper piece 12a, and the fitting operation is further performed than the structures of the above embodiments. Becomes easier.
Other structures are the same as those in the first and second embodiments.

  FIGS. 13 and 14 show a fifth embodiment, in which the bolt hole 14 in the first embodiment is positioned between the center line X of the air pump module 10 and the center line Y of the canister 1, that is, the air pump module. A bolt hole 14 is formed at a position Z displaced from the center line X of 10 toward the center line Y side of the canister 1.

Since the other structure is the same as that of the first embodiment, the same parts as those described above are denoted by the same reference numerals and the description thereof is omitted.
In the fifth embodiment, the same operation and effect as in the first embodiment are exhibited, and a bolt hole 14 for receiving the load of the canister 1 is provided near the center of the canister 1 to stabilize the support of the canister 1. Can be increased.

  FIGS. 15 and 16 show a sixth embodiment. The bolt holes 14 of the first embodiment are provided in the first chamber 4 and the second chamber 5 located on the left and right sides of the air pump module 10, respectively. Two holes 14 are formed. Two bolt holes 20 corresponding to the two bolt holes 14 are formed in the plate-like member 17 on the vehicle body side.

Since the other structure is the same as that of the first embodiment, the same parts as those of the first embodiment are denoted by the same reference numerals and the description thereof is omitted.
In the sixth embodiment, the same operation and effect as in the first embodiment are exhibited, and the canister 1 is supported by two bolts, so that the weight is larger than that in which the canister is supported by one bolt. Can withstand the support of large canisters.

FIGS. 17 and 18 show a seventh embodiment, which is an example in which the present invention is applied to a canister in which the air pump module 10 in the first embodiment is not attached to the canister.
That is, the locking members 12 and 13 and the bolt holes 14 having the same structure as in the first embodiment are arranged on the upper wall 11 of the canister 1 at the same positions.

Since the other structure is the same as that of the first embodiment, the same parts as those of the first embodiment are denoted by the same reference numerals and the description thereof is omitted.
In the seventh embodiment, the same operation and effect as the first embodiment can be exhibited.

19 and 20 show an eighth embodiment, in which the position of the bolt hole 14 and its peripheral structure are changed as compared with the first embodiment.
That is, one end of the partition plate 3 is integrally connected to a portion where the side wall 4a forming the first chamber 4 and the side wall 5a forming the second chamber 5 intersect, and is formed between the side walls 4a and 5a. Bolt holes 14 are formed in the upper wall 11 located at the upper part of the space (bolt insertion space) 16a, in the vicinity of the portion P where the three walls 4a, 5a and the partition plate 3 intersect.

Since the other structure is the same as that of the first embodiment, the same parts as those described above are denoted by the same reference numerals and the description thereof is omitted.
In the eighth embodiment, the same operation and effect as in the first embodiment are exhibited, and the bolt hole 14, that is, the bolt insertion space 16a does not exist in the first chamber 4 and the second chamber 5. Compared with the embodiment, the stagnation due to the gas flow in the canister 1 can be eliminated, and the adsorption performance can be improved. Further, since the bolt hole 14 is formed in the upper wall 11 in the vicinity of the portion P where both the walls 4a and 5a and the partition plate 3 intersect, the rigidity of the bolt hole 14 portion is high and vibration is reduced.

  In the fifth to eighth embodiments, the mounting structure shown in FIGS. 8 to 12 may be used.

The top view which shows 1st Example of this invention. The MM sectional view taken on the line in FIG. The top view which shows the plate-shaped member and canister of the canister in this invention. The sectional side view which shows the attachment state of the canister in this invention. The perspective view which shows the separation state of the locking member and locking hole of this invention. The perspective view which attached the locking member in FIG. 5 to the locking hole. NN sectional view taken on the line in FIG. The perspective view which shows 2nd Example of the locking member of this invention. The perspective view which shows 3rd Example of the locking member of this invention. Sectional drawing explaining the attachment in the Example of FIG. The perspective view which shows 4th Example of the securing member of this invention. Sectional drawing explaining attachment in the Example of FIG. The top view of the canister which shows 5th Example of this invention. FIG. 14 is a sectional view taken along line SS in FIG. 13. The top view of the canister which shows 6th Example of this invention. TT sectional view taken on the line in FIG. The top view of the canister which shows 7th Example of this invention. FIG. 18 is a cross-sectional view taken along the line U-U in FIG. 17. The top view of the canister which shows 8th Example of this invention. The VV sectional view taken on the line in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Canister 2 Case 3 Partition plate 6 Suction port 7 Purge port 8 Air | atmosphere port 11 Upper wall 12, 13 Locking member 12a Upper piece 12b Vertical piece 14, 20 Bolt hole 16, 16a Bolt insertion space 17 Plate-like members 18, 19 Blind hole

Claims (4)

  A suction port, a purge port, and an atmospheric port are provided on the side wall of the case forming the canister, a plurality of locking members project from the upper wall of the case, and at least one bolt hole is formed. A locking hole corresponding to the locking member and a bolt hole corresponding to the bolt hole are formed in the plate member, and the locking member is formed in an inverted L shape with an upper piece and a vertical piece, By moving in the horizontal direction after being inserted into the locking hole of the plate-like member, the locking member is fitted to the plate-like member to be positioned and temporarily held. In this positioning state, both the bolt holes are matched. A canister mounting device characterized in that the canister and the plate-like member are connected by bolts through the matched bolt holes.   A locking piece is provided on one side of a fitting space formed on the lower side of the upper piece in the inverted L-shaped locking member, the locking hole is an insertion hole for inserting the locking member, The canister mounting device according to claim 1, wherein, on the side where the locking piece is located, the locking member is formed by a locking groove into which the locking piece is fitted by the movement of the locking member in the horizontal direction.   The canister mounting device according to claim 2, wherein a rib is formed on a lower surface of an upper piece of the locking member.   The bolt insertion space is formed below the bolt hole formed in the upper wall of the canister, and the surrounding wall forming the bolt insertion space is integrally connected to a partition plate provided in the canister. The canister mounting device according to any one of claims 1 to 3.

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