JPH11227480A - Seal structure of shift lever installation part - Google Patents

Abstract

(57) [Problem] To simplify a sealing structure around an opening of a floor panel in which a shift lever is projected and arranged, and to reduce a space occupied by disposing a sealing member. SOLUTION: A seal member 6 is provided on a housing 2 of a transmission 1 protruding from an opening 5 of a floor tunnel 4.
The inner and outer cylinders 7 and 10 are sealed in such a manner that the lower peripheral wall of the outer cylinder 10 connected to the upper seal wall 9 is overlapped with the lower seal wall 8 so that the inner and outer cylinders 7 and 10 are sealed. By fastening and fixing to the periphery of the opening 5, a multi-stage sealing wall structure can be obtained to improve the sealing and sound insulation properties, and the sealing member is formed in a hollow donut shape to reduce the installation height and occupy the installation space. Can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seal structure for a shift lever provided on a vehicle floor panel.

[0002]

2. Description of the Related Art FIG. 4 shows a conventional seal structure of a shift lever disposing portion.
Is a cylindrical housing that is provided upright at the rear of the transmission 31 and pivotally supports a shift lever 33. The housing 32 is disposed below a floor panel, specifically, a floor tunnel 34. , Shift lever 33
Only one of them is disposed so as to protrude from the opening 35 provided in the floor tunnel 34 toward the vehicle interior.

[0003] A transmission boot 36 made of an elastic material such as rubber is fitted over the upper opening edge of the housing 32 and the lower end of the shift lever 33 to fit the housing 32.
Prevents oil from splashing from inside to the outside.

The opening 35 of the floor tunnel 34 is provided with a shift lever boot 37 made of an elastic material such as rubber.
To prevent the intrusion of water, dust, and the like from the opening 35 into the vehicle interior.

The shift lever boot 37 has a double structure of an inner boot 37A and an outer boot 37B which are fastened and fixed together on the peripheral edge of the opening 35 via a retainer plate 38 to enhance sound insulation.
A is the periphery of the opening 35 and the transmission boot 36.
And the outer boot 37 </ b> B is provided across the periphery of the opening 35 and the upper end of the shift lever 33.

The transmission boot 36 is formed as a bellows in order to improve the followability of the shift lever 33 to the swing and the connection with the inner boot 37A, and the inner peripheral edge of the inner boot 37A is engaged with the valley of the bellows. And connected.

The outer boot 37B is formed as a tapered bellows having an upper end with a small diameter so that the followability to the swing of the shift lever 33 is good. Has been stopped by.

In FIG. 4, reference numeral 33a denotes a knob at the upper end of the shift lever 33, and reference numeral 40 denotes a decorative cloth boot disposed over a lower end of the knob 33a and an opening edge of a floor console (not shown).

This similar structure is disclosed, for example, in Japanese Utility Model Laid-Open No. 57-41.
No. 527.

[0010]

SUMMARY OF THE INVENTION Shift lever boot 3
Since a plurality of inner boots 37A and outer boots 37B are used as 7, the number of parts and the number of assembling operations are increased, which is disadvantageous in cost.

Further, the outer boot 37B is provided as a tapered bellows so as to rise from the periphery of the opening 35 of the floor tunnel 34 to the upper end of the shift lever 33, so that the space occupied by the outer boot 37B is reduced. The floor console becomes bigger and this outer boot 37
B must be formed so as not to interfere with B, and the degree of freedom in designing the floor console is impaired.

Therefore, according to the present invention, a single seal member can reliably seal around the opening of the floor panel on which the shift lever is projected and arranged without impairing the sound insulation, and the space occupied by the seal member is occupied. An object of the present invention is to provide a seal structure for a shift lever disposition portion which can be reduced as much as possible.

[0013]

According to the first aspect of the present invention, a cylindrical housing which supports a shift lever of a transmission is disposed so as to protrude from a floor panel opening into a vehicle interior, and the housing is mounted on the housing. An inner cylinder portion fitted into the housing and closely attached to the peripheral side surface of the housing, a lower seal wall which is integrally formed by projecting outward at a lower edge of the inner cylinder portion, on an outer periphery of the cabin-side arrangement portion; A seal member having an upper seal wall that protrudes outward from an upper edge of the inner cylinder portion and is integrally formed, and an outer cylinder portion that is integrally formed downward from an outer peripheral edge of the upper seal wall is attached, and the outer member is mounted. The outer peripheral edge of the lower sealing wall is overlapped with the peripheral edge of the lower end of the cylindrical portion, and is fastened and fixed to the peripheral edge of the opening of the floor panel in a state where the inner and outer cylindrical portions are sealed.

According to the second aspect of the present invention, the lower seal wall of the first aspect has an upwardly swelling annular bead portion embossed, while the upper seal wall has a downward swelling. It is characterized in that the protruding annular bead portion is embossed.

According to the third aspect of the present invention, the upper seal wall and the outer cylindrical portion of the second aspect, and the inner peripheral side portion from the bead portion including the bead portion top of the lower seal wall, In addition to being molded rotationally symmetrically about the center line of the inner cylindrical part, the part of the lower seal wall on the outer peripheral side from the top of the bead part was inclined so as to match the inclination angle in the front and rear direction of the floor panel. Features.

In the invention of claim 4, claims 1 to 3 are provided.
The lower seal wall described in (1) has a flange edge extending on the outer periphery thereof, the flange edge is fastened and fixed to the periphery of the opening of the floor panel via an annular retainer plate, and the outer cylindrical portion is fixed by the retainer plate. Is fixed to the lower seal wall on the lower peripheral edge.

According to a fifth aspect of the present invention, a locating pin is erected on the flange edge according to the fourth aspect, while a locating hole is formed in the retainer plate, and the locating pin and the locating hole are engaged with each other. The retainer plate is sub-assembled with the seal member.

[0018]

According to the first aspect of the present invention, the seal member fastened and fixed to the periphery of the opening of the floor panel is provided on the periphery of the interior side portion of the housing in which the shift lever is pivotally supported. Since it is in close contact with the side surface and has a large sealing area, it is possible to reliably seal around the opening.

The space between the inner cylindrical portion and the outer cylindrical portion of the sealing member is sealed, and the inner boot has a multi-stage seal wall structure similar to that using the conventional inner boot and outer boot. As a result, it is possible to obtain an excellent sound insulation property comparable to that using the outer boots.

In addition, since the sealing member is formed in a hollow donut shape and the height of the sealing member can be reduced so that the space occupied by the sealing member can be reduced as much as possible. Layout flexibility can be expanded.

Further, since the sealing can be performed by a single sealing member, it is possible to obtain a cost advantage.

According to the invention of claim 2, according to claim 1,
In addition to the advantageous effects of the invention, the lower seal wall and the upper seal wall of the seal member are each formed with an annular bead portion by embossing, so that vibration of the housing can be favorably absorbed by these bead portions. Vibration isolation can be improved.

Further, since each of the bead portions is formed so as to bulge toward the inside of the hollow of the seal member, it is possible to prevent the seal member from becoming bulky.

According to the invention of claim 3, according to claim 2,
In addition to the effects of the invention, the inner peripheral portion from the bead portion including the upper seal wall and the outer cylindrical portion of the seal member and the bead portion top of the lower seal wall is centered on the center line of the inner cylindrical portion. As the outer peripheral portion of the lower seal wall is more inclined than the top of the bead portion according to the inclination angle of the floor panel in the front-rear direction, the outer peripheral portion of the lower seal wall is formed. By fixing the floor panel in a direction that matches the inclination of the floor panel, the arrangement height of the seal member can be kept low on the upper side of the inclination, and interference with surrounding vehicle interior functional parts can be avoided, The degree of freedom in the design and layout of the vehicle interior functional parts can be further expanded.

Further, even if the lower seal wall is fixed to a floor panel inclined in the front-rear direction, the bead portion of the lower seal wall can have a horizontal arrangement posture orthogonal to the axis of the housing. The stability of the vibration-proof support of the housing is not impaired.

Furthermore, since the upper seal wall extending the outer cylindrical portion and the inner peripheral portion from the top of the bead portion of the lower seal wall can be formed in a direction perpendicular to the inner cylindrical portion, a molding die can be easily formed. In addition to forming the seal member, it is easy to remove the mold during molding of the seal member, and the moldability of the seal member can be improved.

According to the invention of claim 4, according to claim 1,
In addition to the effects of the inventions of (1) to (3), the flange edge of the lower seal wall and the lower peripheral edge of the outer cylindrical portion can be fixed uniformly over the entire circumference by the annular retainer plate, so that the mounting stability of the seal member is improved. In addition, the mounting workability can be improved.

According to the invention set forth in claim 5, according to claim 4,
In addition to the effects of the invention, since the retainer plate is sub-assembled with the seal member, parts management can be easily performed, and the workability of mounting the seal member can be further improved.

[0029]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings.

In FIGS. 1 to 3, reference numeral 1 denotes a transmission disposed below a floor tunnel 4 of a floor panel, and a tubular housing 2 on which a shift lever 3 is swingably supported is provided upright at a rear portion thereof. And the cylindrical housing 2
Is projected from the opening 5 of the floor tunnel 4 into the vehicle interior.

Reference numeral 6 denotes an opening 5 in which the housing 2 is arranged to protrude.
A sealing member made of an elastic material such as rubber for sealing around the inner cylinder portion;
A lower seal wall 8 integrally formed by projecting outward to a lower edge of the lower seal wall; an upper seal wall 9 integrally formed by projecting outwardly to an upper edge of the inner cylindrical portion 7; And an outer cylindrical portion 10 integrally formed downward from the outer peripheral edge.

A plurality of annular seal lips 11 which are in close contact with the peripheral side surface of the housing 2 are provided on the inner peripheral surface of the inner cylindrical portion 7 in a multi-stage manner at appropriate intervals in the vertical direction.

The lower sealing wall 8 has a flange edge 1 on its outer periphery.
2, a mounting hole 13 is formed at the front, rear, left and right sides of the flange edge 12, and a plurality of locating pins 14 are erected on the upper surface of the flange edge 12. .

An annular groove 14a which engages with the edge of a locate hole 21 of a retainer plate 18, which will be described later, is formed in the base of the locate pin 14 which stands upright.

An upwardly swelling annular bead portion 15 is embossed at the center of the width of the lower seal wall 8, while a downwardly swelling annular portion is formed at the center of the width of the upper seal wall 9. Is embossed.

The outer cylindrical portion 10 has a rib projection 17 for reinforcement formed in a substantially annular shape at a substantially central portion of the outer peripheral surface thereof, and the lower peripheral edge of the outer cylindrical portion 10 is curved outwardly into a flange shape. I have.

The upper seal wall 9 and the outer cylindrical portion 10 connected to the outer peripheral edge thereof, and the portion of the lower seal wall 8 on the inner peripheral side from the bead portion 15 including the top of the bead portion 15 are formed as follows. , While being formed symmetrically with respect to the center line 0 of the inner cylinder portion 7, that is, symmetrically in a direction perpendicular to the inner cylinder portion 7, on the outer peripheral side of the bead portion 15 of the lower seal wall 8. Is formed so as to be inclined in accordance with the inclination angle α in the front-rear direction of the upper wall rising upward in the front of the floor tunnel 4.

FIG. 3 shows the free shapes of the upper seal wall 9 and the outer cylindrical portion 10 as chain lines.

The inner cylindrical portion 7 of the sealing member 6 is inserted into and closely attached to the outer periphery of the housing 2, and the lower sealing wall 8 is oriented so that the outer peripheral portion thereof is aligned with the inclination of the upper wall of the floor tunnel 4 in the front-rear direction. Then, the outer peripheral flange edge 12 is fastened and fixed to the peripheral edge of the opening 5 through an annular retainer plate 18 with bolts and nuts (not shown).
Thus, the lower peripheral edge of the outer cylindrical portion 10 is overlapped on the lower seal wall 8 to be clamped and fixed, and the inner and outer cylindrical portions 7 and 10 are mounted in a sealed state.

The retainer plate 18 is provided on the flange edge 1.
2 is formed to fit the outer shape of the flange edge 12 so as to be fitted to the outside, and a flange 19 for holding the lower edge of the outer cylindrical portion 10 is stepped on the inner peripheral edge thereof.

A mounting hole 20 is formed in the retainer plate 18 so as to match the mounting hole 13 formed in the flange edge 12 of the lower seal wall 7, and is fastened by the bolt and nut through the mounting holes 13 and 20. The retainer plate 18 is fixed at a position corresponding to the locate pin 14 on the flange edge 12, and the retainer plate 18 is located in the locate hole 21.
Is inserted into the annular groove 14a of the locating pin 14 so that the lower end peripheral edge of the outer cylindrical portion 10 is clamped and fixed on the lower seal wall 8 by the flange 19 to be sub-assembled to the seal member 6. It is.

In FIG. 1, reference numeral 22 denotes a cap-shaped transmission boot made of an elastic material such as rubber fitted to the upper opening of the housing 2. Reference numeral 23 denotes the periphery of the opening of the floor console 24 and the lower end of the knob 3 a of the shift lever 3. 5 shows a decorative cloth boot disposed over a part.

According to the structure of the above embodiment, the seal member 6 fastened and fixed to the periphery of the opening 5 in the upper wall of the floor tunnel 4 is the same as the vehicle of the housing 2 whose inner cylinder 7 pivotally supports the shift lever 3. Since the sealing area is increased by being in close contact with the peripheral side surface of the chamber side arrangement portion, the periphery of the opening 5 can be reliably sealed.

The inner cylinder 7 and the outer cylinder 1 of the sealing member 6
0, the inner boot 37A and the outer boot 37B are used because they have a multi-stage sealing wall structure similar to the conventional inner boot 37A and the outer boot 37B shown in FIG. It is possible to obtain an excellent sound insulation that is not inferior to anything.

Further, since the sealing member 6 is formed in a hollow donut shape, the height of the sealing member 6 can be reduced and the occupying space can be reduced as much as possible. Can be arranged close to the shift lever 3 and the housing 2, and the degree of freedom in designing and layout of the floor console 24 can be expanded.

Further, since the sealing can be performed by the single sealing member 6, it is possible to obtain the cost advantage.

According to this embodiment, the lower seal wall 8 and the upper seal wall 9 of the seal member 6 are formed with the annular bead portions 15 and 16 by embossing, respectively. These beads 15 and 16 can favorably absorb and improve the vibration isolation.

Further, since both the bead portions 15 and 16 are bulged toward the inside of the hollow of the seal member 6,
The bulky sealing member 6 can be avoided.

Further, a portion on the inner peripheral side from the bead portion 15 including the top portion of the bead portion 15 of the lower seal wall 8 and the upper seal wall 9 and the outer cylindrical portion 10 of the seal member 6 is connected to the inner cylindrical portion 7.
Is formed in a rotationally symmetrical manner with respect to the center line 0 of the lower seal wall 8, and a portion of the lower seal wall 8 on the outer peripheral side from the top of the bead portion 15 is inclined and formed in accordance with the inclination angle of the upper wall of the floor tunnel 4 in the front-back direction. The flange edge 12 of the lower seal wall 8
Of the sealing member 6 at the front side, which is on the upper side of the slope, can be kept low. Can be avoided, and the degree of freedom in designing and laying out the floor console 24 can be further expanded.

Further, even if the flange edge 12 is fixed to the upper wall of the floor tunnel 4 in such a manner as to be inclined in the front-rear direction, the bead portion 15 of the lower seal wall 8 is horizontal and perpendicular to the axis of the housing 2. Since the housing 2 can be set to the arrangement posture, the stability of the vibration isolating support of the housing 2 is not slightly impaired.

Further, the portion of the upper seal wall 9 extending the outer cylindrical portion 10 and the inner peripheral side from the top of the bead portion 15 of the lower seal wall 8 can be formed in a direction perpendicular to the inner cylindrical portion 7. Therefore, the molding die can be easily formed, and at the time of molding the seal member 6, the mold can be easily removed, and the moldability of the seal member 6 can be improved.

On the other hand, the fixing portion of the seal member 6 can be uniformly fixed over the entire circumference by the annular retainer plate 18 over the entire periphery of the flange edge 12 and the lower peripheral edge of the outer cylindrical portion 10. The mounting stability can be improved and the mounting workability can be improved.

Further, since the retainer plate 18 is sub-assembled to the seal member 6 by engaging the locate pin 14 and the locate hole 21, the parts can be easily managed, and the mounting workability of the seal member 6 is further improved. Can be improved.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing an assembly of a seal member and a retainer plate used in one embodiment of the present invention.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a sectional view showing a conventional structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transmission 2 Housing 3 Shift lever 4 Floor tunnel (floor panel) 5 Opening 6 Sealing member 7 Inner cylinder part 8 Lower seal wall 9 Upper seal wall 10 Outer cylinder part 12 Flange edge 14 Locate pin 15, 16 Bead part 18 Retainer plate 21 Locate hole

Claims (5)

[Claims] 1. A housing having a cylindrical shape that supports a shift lever of a transmission is disposed so as to protrude from an opening of a floor panel into a vehicle interior, and is fitted to the outer periphery of a portion of the housing disposed on the vehicle interior side. The inner cylinder part that is in close contact with the peripheral side surface of the housing, the lower seal wall that protrudes outward to the lower edge of the inner cylinder part and is integrally molded, and the outer cylinder that protrudes outward to the upper edge of the inner cylinder part A seal member having an integrally molded upper seal wall and an outer cylindrical portion integrally molded downward from the outer peripheral edge of the upper seal wall is mounted, and a lower peripheral edge of the outer cylindrical portion is attached to an outer peripheral edge of the lower seal wall. Polymerized,
A seal structure for a shift lever disposition portion, wherein the outer cylinder portion is sealed and fastened to the periphery of an opening of a floor panel. 2. The lower seal wall is formed by embossing an upwardly protruding annular bead, while the upper seal wall is formed by embossing a downwardly protruding annular bead. The seal structure for a shift lever disposition portion according to claim 1, wherein: 3. An inner peripheral portion from the bead portion including the upper seal wall and the outer cylindrical portion and the bead portion top portion of the lower seal wall is rotationally symmetric about the center line of the inner cylindrical portion. 3. The shift lever disposing portion according to claim 2, wherein a portion of the lower seal wall on the outer peripheral side from the top of the bead portion is formed so as to be inclined according to the inclination angle of the floor panel in the front-rear direction. Seal structure. 4. The lower seal wall has a flange edge extending on the outer periphery thereof, and the flange edge is fastened and fixed to the periphery of the opening of the floor panel via an annular retainer plate. 4. The seal structure for a shift lever disposition portion according to claim 1, wherein a peripheral edge of a lower end of the cylindrical portion is clamped and fixed on a lower seal wall. 5. A locating pin is erected on a flange edge, a locating hole is formed in a retainer plate, and the locating pin and the locating hole are engaged to sub-assemble the retainer plate to a seal member. A seal structure for a shift lever disposition portion according to claim 4.