JP4360648B2 - Elastic seal body for vehicle body and method for mounting elastic seal body for vehicle body between steering gear case and panel - Google Patents

Description

  The present invention relates to an elastic seal body for a vehicle body that seals a body panel from an engine room side (outside) by being interposed between a steering gear case and the body panel.

As an elastic seal body for a vehicle body, in order to penetrate the steering shaft from the indoor side to the engine room side, one that seals the opening opened in the body panel is put into practical use.
A practical elastic seal body for a vehicle body is practically sufficient if the through-hole through which the steering shaft passes and the seal portion (lip portion) covering the opening of the body panel are integrally formed of an elastic body.

As such an elastic seal body for a vehicle body, one in which a seal portion (lip portion) is configured to be folded back is known (for example, see Patent Document 1).
Japanese Patent No. 3356935 (page 4, FIG. 6)

The technique of Patent Document 1 will be described.
FIGS. 11A and 11B are views for explaining a conventional basic configuration.
In (a), the elastic seal body 100 for a vehicle body includes a cylindrical tube portion 101, a conical lip portion 102 projecting like a bowl from the outer peripheral surface of the tube portion 101, and a root of the conical lip portion 102. It is a deformable elastic body including the formed thin portion 103 and a fitting portion 105 fitted to a steering gear case 104 provided on the inner peripheral surface of the cylindrical portion 101.

  Further, the elastic seal body 100 for the vehicle body tilts the conical lip portion 102 on the steering gear case 104 side in advance, fits the fitting portion 105 to the steering gear case 104, and maintains a predetermined distance of the opening 109 of the panel 106 while maintaining the predetermined distance. 104 is set together.

  In (b), the conical lip portion 102 of the elastic seal body 100 for the vehicle body is tilted to the panel (dashboard) 106 side as shown by the arrow, the steering gear case 104 side is brought into close contact with the panel 106 side, the vehicle compartment 107 side and the engine The room 108 side is sealed.

However, in the elastic seal body 100 for a vehicle body, it is necessary to perform the work of tilting the conical lip portion 102 toward the panel 106 and bringing the steering gear case 104 side into close contact with the panel 106 side on the engine room 106 side.
For example, since an engine, a mission, and the like are arranged in the engine room 108, the periphery of the elastic seal body 100 for the vehicle body may not be directly viewed and the work space may be narrow, and the conical lip portion 102 is tilted toward the panel 106 side. In some cases, it was difficult to work.
Further, in the elastic seal body 100 for a vehicle body, when the work for setting the panel 106 with a predetermined distance is performed, the predetermined distance may vary.

  That is, there is a demand for an elastic seal body for a vehicle body that can easily perform the work of tilting the conical lip portion toward the body panel and that can work with a predetermined distance from the body panel.

  The present invention provides a vehicle body elastic seal body that solves the difficulty of performing the operation of tilting the conical lip portion toward the body panel and can easily perform the operation of tilting the conical lip portion toward the body panel. An elastic seal for a vehicle body that solves the problem of variation in the setting work while securing a predetermined distance to the body panel, and can suppress variation when setting with a predetermined distance secured to the body panel The challenge is to provide a body.

  According to the first aspect of the present invention, a conical lip portion is projected in a bowl shape from the tip of a cylindrical tube portion, a thin wall portion is formed at the base of the conical lip portion, and the thin wall portion is used as a bending fulcrum. In the elastic seal body for a vehicle body, which can be folded back, a convex portion for folding the conical lip portion is provided at least at one position on the inner peripheral side of the conical lip portion or in the vicinity thereof.

  The invention according to claim 2 is characterized in that the convex portion is set to be substantially the same as the height in contact with the panel at the time of sealing.

  According to a third aspect of the present invention, in the attachment method of the elastic seal body for a vehicle body between the steering gear case and the panel, a conical lip portion is projected in a bowl shape from the tip of the cylindrical tube portion, and the conical lip Forming a thin-walled portion at the base of the portion, and preparing the elastic seal body for the vehicle body with the thin-walled portion as a folding fulcrum and allowing the conical lip portion to be folded back; and fitting the elastic seal body for the vehicle body to the steering gear case , The step of folding the conical lip portion away from the panel, the step of positioning the steering gear case on the panel, and the conical lip portion by folding the conical lip portion to the panel side by operating the projection from the panel side And elastically pressing the panel against the panel.

  In the invention according to claim 1, since the convex portion for folding the conical lip portion is provided at least at one place on the inner peripheral side of the conical lip portion, the conical lip portion is picked or pushed inwardly. Can be folded. For example, if the convex part is set toward the passenger compartment side, the conical lip part can be folded back from the passenger compartment side, and the conical lip part can be folded back from the engine room side that stores a large number of parts. Compared to the case, the conical lip portion can be easily folded back. As a result, there is an advantage that the workability of the setting work of the elastic seal body for the vehicle body can be improved.

  In the invention which concerns on Claim 2, since the convex part was set substantially the same as the height which contacts a panel at the time of sealing, it can ensure a predetermined distance with respect to a panel and can make it easy to set. Thereby, the dispersion | variation when securing and setting a predetermined distance can be suppressed. As a result, there is an advantage that the amount of deformation of the conical lip portion when applied to the panel can be made uniform, and the sealing property can be made uniform.

  In the invention according to claim 3, since the step of pinching the convex portion from the panel side or pushing it inward to fold the conical lip portion back to the panel side and elastically press the conical lip portion against the panel, for example, The conical lip portion can be folded back more easily than when the conical lip portion is folded back from the engine room side where a large number of parts are stored. As a result, there is an advantage that the workability of the setting work of the elastic seal body for the vehicle body can be improved.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a perspective view of an engine room of a vehicle adopting an elastic seal body for a vehicle body according to the present invention, in which 10 is a vehicle, 11 is a vehicle body, 12 is a vehicle compartment, 13 is an engine room, and 14 is a panel. A dashboard (dash panel), 15 is a front side frame, 16 is a mission, 17 is a steering device, and 40 is an elastic seal body for a vehicle body according to the present invention.
The dashboard 14 includes a steering penetrating portion 18 that allows the steering device 17 to pass therethrough. The steering penetrating portion 18 includes an opening 19 that faces the elastic seal body 40 for the vehicle body.
The engine room 13 is a part that houses a large number of components such as the mission 16 and the power steering motor 27.

  The steering device 17 includes a steering wheel 21 disposed on the vehicle compartment 12 side, a steering shaft 22 extending from the steering wheel 21, a shaft joint 23 connected to the steering shaft 22, and a steering connected to the shaft joint 23. Joint 24, steering gear case assembly 25 connected to the steering joint 24, left and right tie rods 26, 26 extending horizontally from the steering gear case assembly 25, and power steering attached to the steering gear case assembly 25 A motor 27 and a vehicle body elastic seal body 40 that seals the engine room 13 and the vehicle compartment 12 by being fitted to the steering gear case assembly 25 are provided.

The elastic seal body 40 for the vehicle body seals the engine room 13 and the vehicle compartment 12, but can also be regarded as a seal between the steering gear case assembly 25 and the dashboard 14.
In the figure, 28 and 28 are left and right boots, 29 is a steering shaft on the steering gear case assembly 25 side, and 32 is a steering gear case of the steering gear case assembly 25.

FIG. 2 is a view taken in the direction of arrow 2 in FIG. 1 and shows a state in which the vehicle body elastic seal body 40 is attached to the steering gear case assembly 25 from the vehicle compartment 12 side.
The steering gear case assembly 25 has the tip 31 of the steering shaft 29 facing the vehicle body 12 side from the elastic seal body 40 for the vehicle body.

  The elastic seal body 40 for the vehicle body seals the engine room 13 and the vehicle compartment 12 by being elastically applied to the steering penetrating portion 18 of the dashboard 14 from the engine room 13 (see FIG. 1) side. As will be described later, the elastic seal body 40 for the vehicle body has the convex portions (protrusions) 48 and 48 facing the vehicle compartment 12 from the steering penetration portion 18, and thereby the elastic seal body for the vehicle body from the vehicle compartment 12 side. 40 can be operated.

FIG. 3 is a perspective view from the vehicle compartment side of the elastic seal body for vehicle body according to the present invention, and FIG. 4 is a perspective view from the engine room side of the elastic seal body for vehicle body according to the present invention.
The vehicle body elastic seal body 40 includes a base 41 fitted to the case cylindrical portion 33 (see FIG. 5) of the steering gear case 32, and a case tip 34 (see FIG. 5) of the steering gear case 32 formed on the base 41. A through hole 42 that penetrates through, a saw-tooth part 43 (... indicates a plurality, the same applies hereinafter) that increases the sealing effect by forming in the through hole 42, and extends radially from the base 41 The bottom 44, the cylindrical tube 45 (cylindrical portion) 45 raised from the bottom 44 toward the dashboard 14 (see FIG. 1), and the end of the tube 45 are allowed to be bent. The engine room 13 (see FIG. 1) is formed by forming a thin-walled portion (folding fulcrum) 46 to be formed, a conical lip portion 47 applied to the dashboard 14 by extending from the thin-walled portion 46 into a bowl shape, and a cylindrical portion 45. ) Protrusions of the conical lip 47 can be tilted in the engine room 13 side (projections) 48, 48 from the side, consisting of.

  FIG. 5 is a side sectional view showing a state in which the vehicle body elastic seal body according to the present invention is attached to the gear case assembly. The vehicle body elastic seal body 40 is conical in a bowl shape from the tip of the cylindrical tube portion 45. In an elastic seal body for a vehicle body in which a lip portion 47 is projected, a thin portion 46 is formed at the base of the conical lip portion 47, and the conical lip portion 47 can be folded around the thin portion 46 as a fulcrum. It can be said that a convex portion 48 for folding the conical lip portion 47 is provided at least at one location near the lip portion 47.

  For example, if it is possible to easily perform the work of tilting the conical lip portion toward the body panel, it is preferable because the workability of the assembly work can be improved.

  Therefore, by providing a convex portion 48 for folding the conical lip portion 47 in at least one place in the vicinity of the conical lip portion 47, the convex portion 48 is picked or pushed (pulled) inward, so that the conical lip portion 47 is provided. Can be folded. For example, if the convex portion 48 is set toward the vehicle compartment 12 (see FIG. 1), the conical lip portion 47 can be folded back from the vehicle compartment 12 side, and an engine room that houses a large number of parts. The conical lip portion 47 can be easily folded compared to the case where the conical lip portion 47 is folded from the 13th side. As a result, the workability of the setting work of the elastic seal body 40 for the vehicle body can be improved.

FIGS. 6A and 6B are operation explanatory views showing the first stage of the mounting procedure of the elastic seal body for a vehicle body according to the present invention, and show an example of the mounting procedure.
In (a), the conical lip 47 of the elastic seal body 40 for the vehicle body is tilted to the steering gear case assembly 25 side, and the elastic seal body 40 for the vehicle body is fitted to the case tip 34 of the steering gear case assembly 25 as shown by the arrow a1. Include. At this time, the conical lip portion 47 is brought into a state of being tilted in advance toward the steering gear case assembly 25 side.

  Further, since the sawtooth portion 43... (See FIG. 5) is provided in the through-hole 42 of the elastic seal body 40 for the vehicle body, the sawtooth portion 43. The seal body 40 can be firmly attached to the steering gear case assembly 25. Further, since the sawtooth portions 43... Exhibit a labyrinth action, the sealing performance with the steering gear case assembly 25 can be increased.

  In (b), the steering gear case assembly 25 having the vehicle body elastic seal body 40 attached to the dashboard 14 is moved as indicated by an arrow a2 and set at a predetermined position.

FIGS. 7A and 7B are operation explanatory views showing the final stage of the mounting procedure of the elastic seal body for a vehicle body according to the present invention, and show an example of the mounting procedure.
In (a), the convex portion 48 can be picked (or pushed) inward as indicated by arrows a3 and a3 from the passenger compartment 12 side, and the conical lip portion 47 can be folded using the thin portion 46 as a folding fulcrum. For example, the conical lip portion 47 can be easily folded compared to the case where the conical lip portion 47 is folded from the side of the engine room 13 that houses a large number of components. As a result, the workability of the setting work for the elastic seal body 40 for the vehicle body can be improved.

  In (b), the seal between the engine room 13 and the vehicle compartment 12 is completed. In other words, it can be said that the steering gear case assembly 25 and the dashboard 14 have been sealed.

FIG. 8 is a flowchart showing the attachment procedure of the elastic seal body for a vehicle body according to the present invention, and STxx indicates a step number (see FIG. 1 and FIG. 5 for reference numerals).
ST01: A conical lip portion 47 is projected in a bowl shape from the tip of the cylindrical tube portion 45, a thin portion 46 is formed at the base of the conical lip portion 47, and this thin portion 46 is a conical shape with a bending fulcrum as a fulcrum. An elastic seal body for vehicle body 40 in which the lip portion 47 can be folded back is prepared.
ST02: The vehicle body elastic seal body 40 is fitted to the steering gear case 32, and the conical lip 47 is folded back in a direction away from the panel (dashboard) 14.
ST03: Position the steering gear case 32 on the panel 14.
ST04: By operating the convex portion 48 from the panel 14 side, the conical lip portion 47 is folded back to the panel 14 side, and the conical lip portion 47 is elastically pressed against the panel 14.

  That is, the attachment method of the elastic seal body for the vehicle body between the steering gear case 32 and the panel 14 is such that the conical lip portion 47 protrudes like a bowl from the tip of the cylindrical tube portion 45, and this conical lip portion 47. Forming a thin-walled portion 46 at the base of the vehicle body, preparing a vehicle body elastic seal body 40 in which the thin-walled portion 46 is a folding fulcrum and allowing the conical lip portion 47 to be folded back; , The step of turning the conical lip portion 47 away from the panel (dashboard) 14, the step of positioning the steering gear case 32 on the panel 14, and the operation of the convex portion 48 from the panel 14 side. And the step of folding the conical lip portion 47 toward the panel 14 and elastically pressing the conical lip portion 47 against the panel 14. It can be said that was formed from.

  By pulling the convex portion 48 from the panel 14 side, the conical lip portion 47 is folded back to the panel side and the conical lip portion 47 is elastically pressed against the panel 14 to provide, for example, an engine that houses a large number of components. The conical lip 47 can be easily folded compared to the case where the conical lip 47 is folded from the room 13 side. As a result, the workability of the setting work of the elastic seal body 40 for the vehicle body can be improved.

FIG. 9 is a side sectional view of the elastic seal body for a vehicle body of the second embodiment according to the present invention.
In the figure, 50 is an elastic seal body for a vehicle body, 51 is a base portion, 52 is a through hole, 53 is a sawtooth portion, 54 is a bottom portion, 55 is a cylindrical portion, 56 is a thin portion, 57 is a conical lip portion, and 58 and 58 are The elastic seal body 50 for a vehicle body is a convex portion in which the convex portions 58 and 58 are set to be substantially the same as the height in contact with the dashboard (panel) 14 shown in FIG.

For example, if it is possible to suppress variations when setting the panel 14 while securing a predetermined distance, it is preferable because the sealing property can be made uniform.
Therefore, by setting the protrusions 58 and 58 to be substantially the same height as the panel 14 at the time of sealing, a predetermined distance can be secured with respect to the panel 14 to facilitate setting. Thereby, the dispersion | variation when securing and setting a predetermined distance can be suppressed. As a result, the amount of deformation of the conical lip 57 when applied to the panel 14 can be made uniform, and the sealing performance can be made uniform.

FIG. 10 is a side sectional view of the elastic seal body for a vehicle body of the third embodiment according to the present invention.
In the figure, 60 is an elastic seal body for a vehicle body, 61 is a base, 62 is a through hole, 63 is a sawtooth portion, 64 is a bottom portion, 65 is a cylindrical portion, 66 is a thin portion, 67 is a conical lip portion, and 68 and 68 are The elastic seal body 60 for a vehicle body is a convex portion provided with a convex portion 68 for folding the conical lip portion 67 at least at one location on the inner peripheral side of the conical lip portion 67.
By providing a convex portion 68 for folding the conical lip portion 67 at least at one location on the inner peripheral side of the conical lip portion 67, the conical lip portion 67 can be directly picked or pushed inward. it can. As a result, the workability of the folding operation of the elastic seal body 60 for the vehicle body can be further improved.

  As shown in FIG. 6, the elastic seal body for a vehicle body according to the present invention is provided with a convex portion 48 for folding the conical lip portion 47 at least in the vicinity of the conical lip portion 47, as shown in FIG. As shown in FIG. 1, the convex portion 68 for folding the conical lip portion 67 is provided at at least one location on the inner peripheral side of the conical lip portion 67, but the present invention is not limited to this, and these may be combined. It does not prevent it. That is, what is necessary is just to provide the convex part for folding back a conical lip part in at least one place of the conical lip part inner peripheral side or the vicinity.

  The elastic seal body for a vehicle body according to the present invention is suitable for use in a vehicle having an engine room that houses a large number of parts.

It is a perspective view of the engine room of the vehicle which employ | adopted the elastic seal body for vehicle bodies which concerns on this invention. FIG. 2 is a view taken in the direction of arrow 2 in FIG. 1. It is a perspective view from the compartment side of the elastic seal body for vehicle bodies concerning the present invention. It is a perspective view from the engine room side of the elastic seal body for vehicle bodies concerning the present invention. It is side surface sectional drawing which shows the state which attached the elastic seal body for vehicle bodies which concerns on this invention to the gear case assembly. It is action explanatory drawing which shows the first step of the attachment procedure of the elastic seal body for vehicle bodies which concerns on this invention. It is an operation explanatory view showing the final stage of the attachment procedure of the elastic seal body for a vehicle body related to the present invention. It is a flowchart which shows the attachment procedure of the elastic seal body for vehicle bodies which concerns on this invention. It is side surface sectional drawing of the elastic seal body for vehicle bodies of 2nd Example which concerns on this invention. It is a side sectional view of the elastic seal body for vehicle bodies of the 3rd example concerning the present invention. It is a figure explaining the conventional basic composition.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Vehicle, 14 ... Panel (dashboard), 40, 50, 60 ... Elastic seal body for vehicle body, 45, 55, 65 ... Tube part, 46, 56, 66 ... Thin part, 47, 57, 67 ... Conical shape Lip part, 48, 58, 68 ... convex part.

Claims (3)

A conical lip is projected from the tip of the cylindrical tube in a bowl shape, a thin part is formed at the base of the conical lip, and the conical lip can be folded using the thin part as a bending fulcrum. In the elastic seal body for a car body,
An elastic seal body for a vehicle, wherein a convex portion for folding the conical lip portion is provided at least at one location on the inner peripheral side of the conical lip portion or in the vicinity thereof.   2. The elastic seal body for a vehicle body according to claim 1, wherein the convex portion is set to have substantially the same height as that of the panel when sealing. A conical lip is projected from the tip of the cylindrical tube in a bowl shape, a thin part is formed at the base of the conical lip, and the conical lip can be folded using the thin part as a bending fulcrum. Preparing an elastic seal body for a vehicle body,
A step of fitting the elastic seal body for the vehicle body to a steering gear case, and turning the conical lip portion away from the panel;
Positioning the steering gear case on the panel;
The step of folding the conical lip portion to the panel side by operating the convex portion from the panel side and elastically pressing the conical lip portion against the panel;
A mounting method of an elastic seal body for a vehicle body between a steering gear case and a panel, comprising:

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