WO2013065701A1 - シール構造 - Google Patents
シール構造 Download PDFInfo
- Publication number
- WO2013065701A1 WO2013065701A1 PCT/JP2012/078085 JP2012078085W WO2013065701A1 WO 2013065701 A1 WO2013065701 A1 WO 2013065701A1 JP 2012078085 W JP2012078085 W JP 2012078085W WO 2013065701 A1 WO2013065701 A1 WO 2013065701A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- seal
- panel
- grommet
- contact surface
- outer edge
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
- F16J15/106—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure homogeneous
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/08—Insulating elements, e.g. for sound insulation
- B60R13/0846—Insulating elements, e.g. for sound insulation for duct, cable or rod passages, e.g. between engine and passenger compartments
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/50—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall
- F16J15/52—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall by means of sealing bellows or diaphragms
Definitions
- the present invention relates to a seal structure provided in a panel having an opening for passing a cable.
- a cable is used to connect a shift lever arranged in a vehicle interior to a transmission arranged outside the vehicle.
- This cable transmits the operation input by the driver to the shift lever to the transmission.
- the cable is guided from the room to the outside through an opening formed in a panel that partitions the vehicle interior and the exterior.
- a technology is known that forms a seal structure around the opening to support the cable that passes through the opening and to prevent foreign objects such as water, dust, and exhaust gas and noise from entering the room from the outside through the opening. It has been.
- Patent Document 1 discloses a support structure for a transmission control cable.
- This support structure has a grommet having an insertion hole into which a control cable is inserted, and a retainer for attaching the grommet to a vehicle panel.
- the grommet is attached to the vehicle panel by the retainer, the opening formed in the vehicle panel is sealed by the grommet.
- grommets are used as components of the seal structure.
- sticker between the panels of a vehicle is proposed.
- a grommet described in Patent Document 2 includes a cylindrical small diameter portion having an insertion hole through which a wire harness can be inserted, a flange portion protruding outward from the cylindrical small diameter portion, and a flange portion facing a vehicle panel. And an uneven portion formed on the surface. In a state where the grommet is attached to the vehicle panel, the concavo-convex portion contacts the periphery of the opening formed in the vehicle panel.
- the grommet described in Patent Document 3 includes a grommet body having a disk-shaped substrate, and an outer ring side lip and an inner ring side lip disposed on the inner peripheral surface of the substrate. . In the state where the grommet is attached to the vehicle panel, the lip is pressed against the panel, and waterproofness is ensured.
- a panel on which the grommet is fixed and a panel having a contact surface on which the grommet abuts are not the same
- the distance between the first and second panels can vary. If there is variation in the position of the contact surface, the seal performance may be degraded in the conventional grommet structure.
- the seal structure disclosed here has a first panel, a second panel, and a grommet body.
- the first panel has an opening and a contact surface formed around the opening.
- the second panel is disposed on the contact surface side of the first panel.
- the grommet body has a fixed portion, a main body portion, an outer edge portion, a first seal, and a second seal.
- the fixing part is fixed to the second panel.
- the main body is formed with a through-hole into which a cable is inserted and is inserted into the opening.
- the outer edge portion is disposed around the main body portion and faces the contact surface.
- the first seal extends from the outer edge portion toward the contact surface so as to surround the main body portion with the elastic material, and contacts the contact surface.
- the second seal extends from the outer edge portion toward the contact surface so as to surround the first seal by the elastic member, and contacts the contact surface.
- the distance between the distal end of the first seal and the distal end of the second seal is wider than the distance between the proximal end of the first seal and the proximal end of the second seal.
- the first seal extends from the outer edge portion toward the contact surface so as to surround the main body portion by the elastic member
- the second seal extends from the outer edge portion to the contact surface so as to surround the first seal by the elastic member.
- the first and second seals are flexibly deformed according to the distance between the outer edge portion and the contact surface. Thereby, it is possible to cope with the variation in the position of the contact surface, and it is possible to suppress deterioration in the performance of the seal.
- the distance between the tip of the first seal and the tip of the second seal is the same as the base end of the first seal and the second seal. Since it is wider than the distance from the base end, interference between the first and second seals is prevented. As a result, the first and second seals can be disposed close to each other, so that the outer edge portion can be reduced. As a result, the grommet body can be downsized. Furthermore, since the contact surface can be reduced, the degree of freedom in layout is improved.
- this seal structure it is possible to suppress deterioration of the performance of the seal even when the position of the contact surface varies, and it is possible to reduce the size of the component and improve the flexibility of layout.
- FIG. 4A is a view taken along the arrow VA-VA in FIG. 4A
- FIG. 5B is a cross-sectional view taken along the line VB-VB in FIG. The elements on larger scale of FIG.
- the top view of a retainer (A) The top view of the grommet body at the time of seeing from a retainer side, (B) The top view of the grommet body at the time of seeing from the grommet side.
- FIG. 9 A Perspective view of seal structure
- B IX-IX sectional view of FIG. 9 (A)
- C IX-IX sectional view of FIG. 9 (A)
- D IX-IX of FIG. 9 (A) IX sectional view. Sectional drawing equivalent to FIG. 6 in the state in which the grommet body was attached to the panel unit.
- FIG. 1 is an exploded perspective view of a seal structure 4 according to this embodiment.
- a shift lever 1 is disposed inside the vehicle and a transmission 2 is disposed outside the vehicle.
- the shift lever 1 and the transmission 2 are connected by a cable 3.
- the cable 3 is a control cable that transmits the operation input to the shift lever 1 by the driver to the transmission 2.
- the cable 3 includes a shift cable 30 and a select cable 32.
- the shift cable 30 transmits the vertical movement of the shift lever 1 to the transmission 2.
- the select cable 32 transmits the lateral movement of the shift lever 1 to the transmission 2.
- the shift cable 30 has a tubular outer casing 30a and an inner cable 30b passed through the inner side of the outer casing 30a.
- the inner cable 30b is pulled toward the shift lever 1 in the outer casing 30a or pushed toward the transmission 2 side. Thereby, the operation in the vertical direction input by the driver to the shift lever 1 is transmitted to the transmission 2.
- the select cable 32 has a tubular outer casing 32a and an inner cable 32b passed through the inner side of the outer casing 32a.
- the inner cable 32b is pulled toward the shift lever 1 in the outer casing 32a or pushed toward the transmission 2 side.
- the lateral operation input by the driver to the shift lever 1 is transmitted to the transmission 2.
- the gear change is executed in the transmission 2 by the driving force input to the transmission 2 via the inner cable 30b and the inner cable 32b.
- a seal structure 4 is formed at a position where the cable 3 is led from the room to the outside.
- the seal structure 4 includes a first panel 5, a second panel 6, and a grommet body 7.
- a through hole 8 into which the cable 3 is inserted is formed in the seal structure 4.
- FIG. 2A is a perspective view of the panel unit 10
- FIG. 2B is a cross-sectional view of the panel unit 10.
- the panel unit 10 includes a first panel 5, a second panel 6, a bolt 12, and a nut 14.
- the first panel 5 has an opening 50 and a contact surface 52 formed around the opening 50.
- the first panel 5 is made of steel.
- the second panel 6 is disposed on the contact surface 52 side of the first panel 5.
- the second panel 6 has an opening 60.
- the second panel 6 is made of steel.
- the second panel 6 is a basic frame of the panel unit 10.
- the first panel 5 is a member that reinforces the second panel 6.
- the first panel 5 and the second panel 6 are fixed to each other and face each other. Further, the first panel 5 and the second panel 6 are arranged with a gap therebetween.
- the opening 50 of the 1st panel 5 and the opening 60 of the 2nd panel 6 are arrange
- the bolt 12 is a member for fixing the grommet body 7 to the panel unit 10.
- the bolt 12 is fixed to the second panel 6 so that the male screw protrudes to the indoor side of the second panel 6.
- the bolts 12 are welding bolts and are arranged at two locations around the opening 60.
- the nut 14 is a member for fixing the grommet body 7 to the panel unit 10.
- the nut 14 has a female screw that is fitted into the male screw of the bolt 12, and can be attached to the bolt 12.
- the grommet body 7 includes fixing portions 73 and 75, a main body portion 70, an outer edge portion 72, a first seal 74, and a second seal 76.
- the grommet body 7 will be described in more detail.
- FIG. 3 is a side view of the grommet body 7.
- the grommet body 7 includes a grommet 7a and a retainer 7b.
- the through hole 8 formed in the grommet body 7 has a first through hole 80 into which the shift cable 30 is inserted and a second through hole 82 into which the select cable 32 is inserted.
- Grommet> 4A is a side view of the grommet 7a
- FIG. 4B is a plan view of the grommet 7a viewed along the arrow IVB in FIG. 4A.
- the grommet 7 a has a main body part 70, an outer edge part 72, a first seal 74, and a second seal 76.
- the grommet 7 a has a receiving surface 70 a formed by the main body portion 70 and the outer edge portion 72.
- the grommet 7a is made of an elastic material.
- the grommet 7a is integrally formed of ethylene-propylene-diene rubber (EPDM).
- EPDM is an example of an elastic material. Details of the main body 70, the outer edge 72, the first seal 74, and the second seal 76 will be described later.
- the first seal 74 is indicated by a broken line.
- the grommet 7 a further has a connecting portion 78.
- the connecting portion 78 is formed on at least one of the main body portion 70 and the outer edge portion 72.
- the connection part 78 is formed in the outer edge part 72, and contains the 1st connection part 78a, the 2nd connection part 78b, and the 3rd connection part 78c of the same shape.
- Each connecting portion 78 includes a columnar portion 780 and a stopper 782.
- the columnar portion 780 protrudes from the receiving surface 70a in a direction substantially perpendicular to the receiving surface 70a.
- the stopper 782 is a portion that protrudes in the radial direction from the columnar portion 780 and is formed so as to go around the outer periphery of the columnar portion 780.
- the stopper 782 has a hooking surface 782a and a tapered surface 782b.
- the hooking surface 782a faces the receiving surface 70a.
- a gap having a dimension substantially equal to the thickness of the retainer 7b is formed between the hooking surface 782a and the receiving surface 70a.
- the tapered surface 782b is formed on the side opposite to the hooking surface 782a of the stopper 782.
- FIGS. 5A is a plan view of the grommet 7a viewed along the arrow VA in FIG. 4A
- FIG. 5B is a cross-sectional view taken along the line VB-VB in FIG. 5A.
- the main body 70 is formed with a through hole 8 into which the cable 3 is inserted, and is inserted into the opening 50 and the opening 60.
- the main body part 70 includes a cable holding part 700 and a movement restricting part 702.
- the cable holding unit 700 is a part for holding the cable 3.
- a through hole 8 (that is, the first through hole 80 and the second through hole 82) is formed in the cable holding portion 700.
- the through hole 8 communicates the seal side of the grommet 7a where the first seal 74 and the second seal 76 are disposed with the receiving surface 70a side.
- the first through hole 80 extends along the center line 80a, and has a receiving surface side rib 800 and a seal side rib 802.
- the receiving surface side rib 800 and the seal side rib 802 are formed on the inner wall of the first through hole 80, and are a plurality of annular protrusions arranged along a direction parallel to the center line 80a.
- the receiving surface side rib 800 and the seal side rib 802 are in close contact with the outer peripheral surface of the shift cable 30 inserted into the first through hole 80. As a result, it is possible to suppress the entry of foreign matter and noise from the outside into the room through the first through hole 80. Moreover, the movement in the 1st through-hole 80 of the outer casing 30a is suppressed, and the shift cable 30 is hold
- the second through hole 82 has the same configuration as that of the first through hole 80, the details of the second through hole 82 are omitted.
- the center line of the second through hole 82 is substantially parallel to the center line 80 a of the first through hole 80.
- the cable holding part 700 extends along a direction parallel to the center line 80a.
- the center line 80a is inclined with respect to a direction perpendicular to the receiving surface 70a.
- the cable holding portion 700 is inclined with respect to a direction perpendicular to the receiving surface 70a.
- the movement restricting portion 702 is a portion protruding toward the seal side of the grommet 7a.
- the movement restricting portion 702 is disposed around the main body portion 70 and has an outer peripheral surface 702a and an inner peripheral surface 702b. In a state where the grommet body 7 is attached to the panel unit 10, the movement restricting portion 702 is inserted into the opening 50 of the first panel 5.
- the outer peripheral surface 702a is connected to the seal surface 720 of the outer edge portion 72, and is inclined toward the main body portion 70 side.
- the inner peripheral surface 702b is formed between the outer peripheral surface 702a and the cable holding portion 700.
- a recess 70 b is formed between the inner peripheral surface 702 b and the cable holding portion 700.
- the outer edge portion 72 is disposed around the main body portion 70 and faces the contact surface 52.
- the outer edge portion 72 is a portion protruding from the main body portion 70 in a flange shape, and is formed in a plate shape.
- the outer edge portion 72 has a seal surface 720 disposed on the seal side. The side opposite to the seal surface 720 of the outer edge portion 72 constitutes a part of the receiving surface 70a.
- the seal surface 720 is formed to be substantially parallel to the receiving surface 70a.
- the first seal 74 is a portion formed so as to surround the main body portion 70 with an elastic material.
- the first seal 74 is a cylindrical portion extending from the outer edge portion 72.
- a main body 70 is disposed inside the first seal 74.
- the second seal 76 is a portion formed so as to surround the first seal 74 by an elastic member.
- the second seal 76 is a cylindrical portion extending from the outer edge portion 72, and the first seal 74 and the main body portion 70 are disposed inside the second seal 76.
- FIG. 6 is an enlarged view of the periphery of the first seal 74 and the second seal 76 in FIG.
- FIG. 6 shows an example of a cross section perpendicular to the circumferential direction A1 or the circumferential direction A2 described later.
- the first seal 74 and the second seal 76 are gradually spaced toward the tip portions 742 and 762. It is formed to spread. Furthermore, the front end portion 742 of the first seal 74 and the front end portion 762 of the second seal 76 are warped in a direction away from each other.
- the first seal 74 has a proximal end 74a, a distal end 74b, a first tapered portion 740, and a distal end portion 742.
- the first seal 74 has a first inner wall surface 74c formed by the first tapered portion 740 and the tip portion 742, and a first outer wall surface 74d.
- the first seal 74 is connected to the outer edge portion 72 at the base end 74a. More specifically, the first inner wall surface 74 c of the first seal 74 is connected to the seal surface 720 of the outer edge portion 72. A boundary B1 between the first inner wall surface 74c and the seal surface 720 forms a closed curve surrounding the main body 70, and a circumferential direction A1 (see FIG. 5A) is determined as a direction parallel to the curve. .
- the distal end 74 b is an end opposite to the proximal end 74 a of the first seal 74. Further, when viewed in a state of facing the seal surface 720, the distal end 74b is disposed closer to the main body 70 than the proximal end 74a.
- 1st taper part 740 is a cylindrical part extended from the outer edge part 72 along the thickness direction perpendicular
- the front end portion 742 is formed on the front end 74 b side of the first seal 74.
- the tip end portion 742 is curved in an arc shape, and the inside of the arc faces the inside of the first seal 74. In other words, the tip 742 is warped away from the second seal 76.
- the second seal 76 has a proximal end 76a, a distal end 76b, a second tapered portion 760, and a distal end 762.
- the second seal 76 has a second inner wall surface 76c formed by the second tapered portion 760 and the tip portion 762, and a second outer wall surface 76d.
- the second seal 76 is connected to the outer edge portion 72 at the base end 76a. More specifically, the second outer wall surface 76 d of the second seal 76 is connected to the seal surface 720 of the outer edge portion 72. A boundary B2 between the second outer wall surface 76d and the seal surface 720 forms a closed curve surrounding the main body 70, and a circumferential direction A2 (see FIG. 5A) is determined as a direction parallel to the curve. .
- the distal end 76 b is an end opposite to the proximal end 74 a of the first seal 74. When viewed in a state of facing the seal surface 720, the distal end 76b is disposed on the opposite side of the main body portion 70 with respect to the proximal end 76a.
- the second taper portion 760 is a cylindrical portion extending from the outer edge portion 72 along the thickness direction perpendicular to the seal surface 720. When viewed in a state of facing the seal surface 720, the second tapered portion 760 extends to the opposite side of the base end portion 76a from the main body portion 70.
- the distal end portion 762 is formed on the side opposite to the proximal end 76 a of the second seal 76.
- the tip end portion 762 is curved in an arc shape, and the inside of the arc faces the outside of the second seal 76. In other words, the tip 762 is warped away from the body 70 and the first seal 74.
- the base end 74a of the first seal 74 and the base end 76a of the second seal 76 are close to each other.
- the first outer wall surface 74d of the first seal 74 and the second inner wall surface 76c of the second seal 76 are continuous, and a V-shaped groove is formed between the two surfaces.
- first seal 74 and the second seal 76 pass between the base end 74a of the first seal 74 and the base end 76a of the second seal 76 with respect to an intermediate line CL perpendicular to the seal surface 720.
- first seal 74 is disposed on the main body part 70 side of the intermediate line CL
- second seal 76 is on the opposite side of the intermediate line CL from the main body part 70.
- sticker 76 are formed so that it may leave
- FIG. 7 is a plan view of the retainer 7b.
- the grommet body 7 includes a retainer 7b that is connected by a connecting portion 78 formed on an outer edge portion 72 of the grommet 7 and in which fixing portions 73 and 75 are formed.
- the connection part 78 should just be formed in at least any one of the main-body part 70 and the outer edge part 72.
- the retainer 7 b is a plate-like member for fixing the grommet 7 a to the panel unit 10.
- the retainer 7b has a pressing portion 71 and fixing portions 73 and 75. Further, the retainer 7 b has an indoor side surface 77 formed by the pressing portion 71 and the fixing portions 73 and 75, and a pressing surface 79 opposite to the indoor side surface 77.
- the retainer 7b is formed of steel.
- the pressing part 71 is a part to which the grommet 7a is connected.
- the pressing portion 71 has a shape corresponding to the shape of the grommet 7a, and is a substantially rectangular portion.
- the pressing part 71 has an opening 710, a first positioning hole 71a, a second positioning hole 71b, and a third positioning hole 71c.
- the opening 710 is formed substantially at the center of the pressing portion 71.
- the opening 710 is provided for inserting the cable holding portion 700 of the grommet 7a.
- the first to third positioning holes 71 a to 71 c are three holes having the same shape and are formed around the opening 710.
- the first to third positioning holes 71a to 71c are provided for inserting the first to third connecting portions 78a to 78c of the grommet 7a, respectively.
- the fixing parts 73 and 75 are fixed to the second panel 6.
- the fixing part 73 has a wing part 73a extending from the pressing part 71 and a hole 73b formed in the wing part 73a.
- the fixed portion 75 has a wing portion 75a extending from the pressing portion 71 and a hole 75b formed in the wing portion 75a.
- the widths of the fixing parts 73 and 75 become narrower from the pressing part 71 toward the end part, and the holes 73b and 75b are formed at the respective end parts.
- the holes 73 b and 75 b are provided for inserting the bolts 12 of the panel unit 10.
- the hole 75b is not circular but has a shape obtained by extending the circle in one direction in order to provide play.
- FIG. 8A is a plan view of the grommet body 7 when viewed from the retainer 7b side
- FIG. 8B is a plan view of the grommet body 7 when viewed from the grommet 7a side.
- the grommet body 7 is assembled to form the seal structure 4.
- the grommet 7 a and the retainer 7 b are connected via the connecting portion 78.
- the first to third connecting portions 78a to 78c of the grommet 7a are inserted into the first to third positioning holes 71a to 71c of the retainer 7b.
- the first to third positioning holes 71a to 71c are fitted into the gaps between the hooking surface 782a of the stopper 782 and the receiving surface 70a in the first to third connecting portions 78a to 78c, respectively.
- the diameters of the first to third positioning holes 71a to 71c are set to be smaller than the diameter of the stopper 782.
- the stopper 782 is formed of an elastic material, the first to third positioning holes 71a to 71c are deformed by the deformation of the stopper 782. A stopper 782 can be passed through the third positioning holes 71a to 71c. At this time, since the tapered surface 782b is formed, the first to third positioning holes 71a to 71c can be fitted into the connecting portion 78 more smoothly. Further, since the movement of the retainer 7b is restricted by the hooking surface 782a, the grommet 7a does not easily fall out of the retainer 7b.
- the receiving surface 70a of the grommet 7a and the pressing surface 79 of the retainer 7b are brought into contact with each other. Further, the cable holding portion 700 of the grommet 7a is inserted into the opening 710 of the retainer 7b.
- FIG. 9A is a perspective view showing the appearance of the seal structure 4.
- the cable 3 is inserted into the through hole 8 of the grommet body 7.
- the cable 3 is further inserted into the opening 50 of the first panel 5 and the opening 60 of the second panel 6.
- the grommet body 7 is fixed to the panel unit 10.
- the bolt 12 is inserted into the holes 73b and 75b of the retainer 7b, and the nut 14 is screwed onto the bolt 12. That is, the fixing portions 73 and 75 are fixed to the second panel 6.
- the main body 70 of the grommet 7 a is inserted into the opening 50 of the first panel 5.
- pressure is applied from the pressing surface 79 of the retainer 7 b to the receiving surface 70 a of the grommet 7 a, and the first seal 74 and the second seal 76 are pressed against the contact surface 52 of the first panel 5.
- the seal structure 4 is formed, and the seal structure 4 suppresses entry of foreign matters such as water and dust through the opening 50.
- the position of the grommet body 7 with respect to the first panel 5 is determined.
- sticker 76 is set so that it can respond when the distance between panels becomes the maximum within an allowable range. That is, the heights of the first seal 74 and the second seal 76 are set so that the first seal 74 and the second seal 76 can contact the contact surface 52 of the first panel 5 with a pressure that can ensure the performance of the seal. Is set. As a result, as shown in FIG. 9D, even if the two panels are separated by a distance D3 and the distance between the panels is larger than the design distance D1, the performance is not deteriorated. A seal is formed.
- the height of the first seal 74 is the dimension of the first seal 74 in the direction perpendicular to the seal surface 720 (that is, the thickness direction) when the seal surface 720 of the outer edge portion 72 is used as a reference.
- the height of the second seal 76 is similarly defined. In the present embodiment, the height of the first seal 74 is approximately equal to the height of the second seal 76.
- first seal 74 and the second seal 76 are pressed against the first panel 5, they spread in opposite directions. As a result, as shown in FIG. 9C, even if the two panels are separated by a distance D2, and the distance between the panels is smaller than the design distance D1, the first seal 74 and Interference with the second seal 76 does not occur.
- FIG. 10 shows a cross section around the first seal 74 and the second seal 76 in the seal structure 4.
- the first seal 74 extends from the outer edge portion 72 toward the contact surface 52 so as to surround the main body 70 by an elastic material, and contacts the contact surface 52.
- the second seal 76 extends from the outer edge portion 72 toward the contact surface 52 so as to surround the first seal 74 by an elastic member, and contacts the contact surface 52.
- An interval W2 between the distal end 74b of the first seal 74 and the distal end 76b of the second seal 76 is wider than an interval W1 between the proximal end 74a of the first seal 74 and the proximal end 76a of the second seal 76.
- the outer edge portion 72 faces the contact surface 52. More specifically, the seal surface 720 faces the contact surface 52. Further, the seal surface 720 is disposed substantially parallel to the contact surface 52.
- the movement restricting portion 702 is inserted into the opening 50 of the first panel 5.
- the outer peripheral surface 702 a is disposed at a position close to or in contact with the opening 50. That is, even when a force is applied to the grommet 7a via the cable 3, the movement of the grommet 7a is restricted by the contact between the outer peripheral surface 702a and the opening 50.
- the first seal 74 and the second seal 76 are gradually spaced toward the tip portions 742 and 762. It is formed as follows. Furthermore, the front end portion 742 and the front end portion 762 are warped in directions away from each other. With this configuration, when the grommet body 7 is attached to the first panel 5 and the second panel 6, the first outer wall surface 74 d of the first seal 74 and the second inner wall surface 76 c of the second seal 76 abut against the contact surface 52. Touch. Then, the first taper portion 740 and the second taper portion 760 are bent, so that the distance between the tip 74b and the tip 76b is increased. In a state where the seal structure 4 is formed, the first outer wall surface 74d of the first seal 74 and the second inner wall surface 76c of the second seal 76 are pressed against the contact surface 52 and are in close contact with each other.
- the first seal 74 and the second seal 76 have the same relationship as before the grommet body 7 is attached to the first panel 5 and the second panel 6. That is, when viewed in a state of facing the contact surface 52, the distal end 74b of the first seal 74 is disposed closer to the main body part 70 than the proximal end 74a, and the distal end 76b of the second seal 76 is relative to the proximal end 76a. It is arranged on the side opposite to the main body 70.
- the first seal 74 extends to the main body portion 70 side from the base end 74a, and the second seal 76 is different from the main body portion 70 with respect to the base end 76a. Extends to the opposite side.
- the first seal 74 is disposed on the body part 70 side of the intermediate line CL, and the second seal 76 is disposed on the opposite side of the body part 70 of the intermediate line CL.
- sticker 76 leave
- the first seal 74 extends from the outer edge portion 72 toward the contact surface 52 so as to surround the main body portion 70 with the elastic member, and the second seal 76 surrounds the first seal 74 with the elastic member. Since it extends toward the contact surface 52 from the outer edge portion 72, the first seal 74 and the second seal 76 are flexibly deformed according to the distance between the outer edge portion 72 and the contact surface 52. Thereby, it is possible to cope with variations in the position of the contact surface 52, and it is possible to suppress a decrease in the performance of the seal.
- the distance W2 between the distal end 74 b of the first seal 74 and the distal end 76 b of the second seal 76 is greater than the distance W1 between the proximal end 74 a of the first seal 74 and the proximal end 76 a of the second seal 76. Therefore, the interference between the first seal 74 and the second seal 76 is prevented.
- sticker 76 can be arrange
- the seal structure 4 it is possible to suppress the deterioration of the seal performance even when the position of the contact surface 52 varies, and it is possible to reduce the size of the component and improve the flexibility of layout.
- the first seal 74 and the second seal 76 are deformed so that the distance between the tip portions 742 and 762 is wider than before the attachment. To do. Therefore, the interference between the first seal 74 and the second seal 76 can be prevented more reliably.
- the distal end portion 742 of the first seal 74 and the distal end portion 762 of the second seal 76 are warped in a direction away from each other.
- the grommet body 7 includes a retainer 7 b that is connected by a connecting portion 78 formed on the outer edge portion 72 and has fixing portions 73 and 75 formed therein.
- the grommet body 7 is fixed to the second panel 6 and at the same time, the first seal 74 and the second seal 76 are fixed to the first panel. 5 can be pressed. Furthermore, by using the retainer 7b as an independent member, the retainer 7b can be formed of a material different from the elastic material forming the first seal 74 and the second seal 76. As a result, the strength and protection of the grommet body 7 can be secured.
- the outer edge portion 72 is pushed toward the second seal 76 by the elastic force generated by the first seal 74 and is pushed toward the first seal 74 by the elastic force generated by the second seal 76. .
- the force acting on the outer edge portion 72 from the first seal 74 and the second seal 76 is canceled in the direction parallel to the contact surface 52.
- the force along the direction perpendicular to the contact surface 52 is greater between the outer edge portion 72 and the contact surface 52 than when the first seal 74 and the second seal 76 are inclined in the same direction. It becomes easy to act. As a result, even if a strong pressure is applied to the outer edge portion 72 due to variations in the position of the contact surface 52, distortion of the outer edge portion 72 can be suppressed.
- the grommet body 7 is fixed to the second panel 6 in a state in which the first panel 5 and the second panel 6 are strongly pressed against the contact surface 52 due to the variation in the distance between the first panel 5 and the second panel 6. May occur.
- the grommet described in Patent Document 3 for example, is used as a conventional technique, the performance of the seal formed between the grommet and the panel unit may be deteriorated.
- the grommet body 7 includes the grommet 7a and the retainer 7b which are separate members. However, the grommet 7a and the retainer 7b may not be separated into separate members.
- the grommet body 7 may be an integral member having the function of the grommet 7a and the function of the retainer 7b. Even if the grommet 7a has a fixing portion fixed to the second panel 6. Good.
- the connecting portion 78 is formed on the outer edge portion 72, but the connecting portion 78 may be formed on the main body portion 70. Further, the connecting portion 78 may be formed on the main body portion 70 and the outer edge portion 72.
- the cable 3 is a control cable that connects the shift lever 1 and the transmission 2, but the cable 3 may be other cables.
- the cable 3 may be a control cable that connects a parking brake and an actuator that supplies a load for operating the parking brake.
- the first seal 74 is formed so that the gap gradually increases from the proximal end 74a toward the distal end portion 742 before the grommet body 7 is attached to the first panel 5 and the second panel 6.
- the second seal 76 is formed so that the interval gradually increases from the proximal end 76a toward the distal end 762, but the grommet body 7 is attached to the first panel 5 and the second panel 6, and the first seal 74 and When the second seal 76 comes into contact with the contact surface 52, the grommet body 7 can be formed if the first seal 74 and the second seal 76 can be deformed so that the distance between the tip portions 742 and 762 is wider than that before attachment.
- the first seal 74 is moved from the proximal end 74a toward the distal end portion 742. Gradually it may not be formed so as to widen the interval Te gradually may not be formed so as to widen the spacing toward the second seal 76 tip 762 from the base end 76a a.
- the front end portion 742 of the first seal 74 and the front end portion 762 of the second seal 76 are separated from each other in a state before the grommet body 7 is attached to the first panel 5 and the second panel 6.
- the leading end portions 742 and 762 are mutually connected. If guided in the away direction, the tip portion 742 of the first seal 74 and the tip portion 762 of the second seal 76 are separated from each other in a state before the grommet body 7 is attached to the first panel 5 and the second panel 6. It does not have to warp in the direction to do.
- the first through hole 80 and the second through hole 82 into which the cable 3 is inserted are formed in the main body 70, but the number of through holes is not limited to two. Only one through hole may be formed, or three or more through holes may be formed.
- the technology disclosed herein is useful because it can be used for a panel structure having two panels facing each other and a seal structure having a grommet, and a decrease in the performance of the seal can be suppressed.
Abstract
Description
図1は、本実施形態に係るシール構造4の分解斜視図である。
図2(A)はパネルユニット10の斜視図であり、図2(B)はパネルユニット10の断面図である。
次に、グロメット体7について説明する。図3から図8に示すように、グロメット体7は、固定部73および75と、本体部70と、外縁部72と、第1シール74と、第2シール76と、を有している。以下、より詳細にグロメット体7について説明する。
図4(A)はグロメット7aの側面図であり、図4(B)は図4(A)の矢印IVBに沿って見たグロメット7aの平面図である。
グロメット7aは、さらに、連結部78を有している。連結部78は、本体部70および外縁部72の少なくともいずれか一方に形成される。本実施形態では、連結部78は、外縁部72に形成されており、同一形状の第1連結部78a、第2連結部78b、および第3連結部78cを含んでいる。
図5(A)および(B)を用いて本体部70について説明する。図5(A)は、図4(A)の矢印VAに沿って見たグロメット7aの平面図であり、図5(B)は、図5(A)のVB-VB断面図である。
外縁部72は、本体部70の周囲に配置され当接面52と向き合う。外縁部72は、本体部70からフランジ状に突出した部分であり、板状に形成されている。外縁部72は、シール側に配置されたシール面720を有している。外縁部72のシール面720と反対側は、受け面70aの一部を構成している。シール面720は、受け面70aと概ね平行になるように形成されている。
第1シール74は、弾性材料により本体部70を取り囲むように形成された部分である。第1シール74は、外縁部72から延びる筒状の部分である。第1シール74の内側には、本体部70が配置されている。
図7は、リテーナ7bの平面図である。グロメット体7は、グロメット7の外縁部72に形成された連結部78により連結され固定部73および75が形成されたリテーナ7bを含んでいる。なお、連結部78は、本体部70および外縁部72の少なくともいずれか一方に形成されていればよい。
図8(A)はリテーナ7b側から見た場合のグロメット体7の平面図であり、図8(B)はグロメット7a側から見た場合のグロメット体7の平面図である。
《パネルユニットの配置》
図9(B)~(D)は、図9(A)におけるIX-IX断面図である。図9(B)~(D)においては、それぞれ、第1パネル5および第2パネル6の間が距離D1、距離D2、および距離D3だけ離れている。ここで、距離D2<距離D1<距離D3である。パネルユニット10の製造においては、第1パネル5と第2パネル6とを互いに固定する際に、第1パネル5および第2パネル6の間の距離にバラツキが生じ得る。距離D1~D3は、パネルユニット10における第1パネル5および第2パネル6の間の距離の一例である。本実施形態では、距離D1が設計値である。パネル間の距離にはバラツキを考慮した許容範囲が定められており、距離D2およびD3は許容範囲内の値である。
図10を用いて、シール構造4における各部の配置についてさらに説明する。図10はシール構造4における第1シール74および第2シール76周辺の断面を示している。
ここで、シール構造4の作用効果についてまとめる。
このシール構造4では、第1シール74が弾性部材により本体部70を取り囲むように外縁部72から当接面52に向かって延び、第2シール76が弾性部材により第1シール74を取り囲むように外縁部72から当接面52に向かって延びているので、外縁部72および当接面52の間の距離に応じて、第1シール74および第2シール76が柔軟に変形する。これにより、当接面52の位置のバラツキに対応することができ、シールの性能低下を抑制することができる。
シール構造4では、グロメット体7を第1パネル5および第2パネル6へ取り付ける前の状態において、第1シール74および第2シール76は、先端部742および762に向かうに従って徐々に間隔が広がるように形成されている。
シール構造4では、第1シール74の先端部742と第2シール76の先端部762とは、互いに離反する方向へ反っている。
シール構造4では、グロメット体7は、外縁部72に形成された連結部78により連結され固定部73および75が形成されたリテーナ7bを含んでいる。
シール構造4では、外縁部72は、第1シール74が発生する弾性力により第2シール76に向かって押されるとともに、第2シール76が発生する弾性力により第1シール74に向かって押される。このように、第1シール74と第2シール76とが互いに押し合うので、当接面52に平行な方向において、第1シール74および第2シール76から外縁部72に作用する力の打消し合いが生じる。したがって、外縁部72と当接面52との間には、第1シール74および第2シール76が同じ向きに傾いている場合に比べて、当接面52に垂直な方向に沿った力が作用しやすくなる。その結果、当接面52の位置のバラツキにより外縁部72に強い圧力が作用しても、外縁部72の歪みを抑制することができる。
以上、本発明の一実施形態について説明したが、本発明は上記実施形態に限定されるものではなく、発明の要旨を逸脱しない範囲で種々の変更が可能である。特に、本明細書に書かれた複数の実施形態および変形例は必要に応じて任意に組み合せ可能である。
前述の実施形態では、グロメット体7は互いに別部材であるグロメット7aとリテーナ7bとを有していたが、グロメット7aとリテーナ7bとが別部材に分かれていなくてもよい。例えば、グロメット体7は、グロメット7aの有する機能とリテーナ7bの有する機能とを具備する一体の部材であってもよく、第2パネル6に固定される固定部をグロメット7aが有していてもよい。
前述の実施形態では、連結部78は外縁部72に形成されていたが、連結部78は本体部70に形成されていてもよい。また、連結部78が本体部70および外縁部72に形成されていてもよい。
前述の実施形態では、ケーブル3はシフトレバー1とトランスミッション2とを接続するコントロールケーブルであったが、ケーブル3はこれ以外のケーブルであってもよい。例えば、ケーブル3は、パーキングブレーキとパーキングブレーキを作動させるための荷重を供給するアクチュエータとを接続するコントロールケーブルであってもよい。
前述の実施形態では、グロメット体7を第1パネル5および第2パネル6へ取り付ける前の状態において、第1シール74は基端74aから先端部742に向かうに従って徐々に間隔が広がるように形成され、第2シール76は基端76aから先端部762に向かうに従って徐々に間隔が広がるように形成されているが、グロメット体7を第1パネル5および第2パネル6へ取り付け、第1シール74および第2シール76が当接面52に当接したときに、第1シール74および第2シール76の先端部742および762における間隔が取り付け前よりも広がるように変形することができれば、グロメット体7を第1パネル5および第2パネル6へ取り付ける前の状態において、第1シール74を基端74aから先端部742に向かうに従って徐々に間隔が広がるように形成しなくてもよく、第2シール76を基端76aから先端部762に向かうに従って徐々に間隔が広がるように形成しなくてもよい。
4 シール構造
5 第1パネル
6 第2パネル
7 グロメット体
7b リテーナ
8 貫通孔
50 開口
52 当接面
70 本体部
72 外縁部
73 固定部
74 第1シール
74a 基端
74b 先端
75 固定部
76 第2シール
76a 基端
76b 先端
78 連結部
742 先端部
762 先端部
Claims (4)
- 開口と、前記開口の周囲に形成された当接面と、を有する第1パネルと、
前記第1パネルの前記当接面側に配置された第2パネルと、
前記第2パネルに固定された固定部と、ケーブルが挿入される貫通孔が形成され前記開口に挿入される本体部と、前記本体部の周囲に配置され前記当接面と向き合う外縁部と、弾性材料により前記本体部を取り囲むように前記外縁部から前記当接面に向かって延び、前記当接面と当接する第1シールと、弾性部材により前記第1シールを取り囲むように前記外縁部から前記当接面に向かって延び、前記当接面と当接する第2シールと、を有し、前記第1シールの先端と前記第2シールの先端との間隔は、前記第1シールの基端と前記第2シールの基端との間隔よりも広くなっている、グロメット体と、
を備えるシール構造。 - 前記グロメット体を前記第1パネルおよび前記第2パネルへ取り付ける前の状態において、前記第1シールおよび前記第2シールは、先端部に向かうに従って徐々に間隔が広がるように形成されている、
請求項1に記載のシール構造。 - 前記第1シールの先端部と前記第2シールの先端部とは、互いに離反する方向へ反っている、
請求項1または2に記載のシール構造。 - 前記グロメット体は、前記本体部および前記外縁部の少なくともいずれか一方に形成された連結部により連結され、前記固定部が形成されたリテーナを含む、
請求項1から3のいずれかに記載のシール構造。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/355,180 US20140300062A1 (en) | 2011-10-31 | 2012-10-31 | Seal Structure |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2011239127 | 2011-10-31 | ||
JP2011-239127 | 2011-10-31 |
Publications (1)
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WO2013065701A1 true WO2013065701A1 (ja) | 2013-05-10 |
Family
ID=48192046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2012/078085 WO2013065701A1 (ja) | 2011-10-31 | 2012-10-31 | シール構造 |
Country Status (3)
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US (1) | US20140300062A1 (ja) |
JP (1) | JPWO2013065701A1 (ja) |
WO (1) | WO2013065701A1 (ja) |
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WO2020059392A1 (ja) * | 2018-09-19 | 2020-03-26 | 住友電装株式会社 | グロメットのシール構造 |
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JP6220320B2 (ja) * | 2014-07-28 | 2017-10-25 | 株式会社ハイレックスコーポレーション | シール構造 |
EP3915816A1 (en) * | 2020-05-25 | 2021-12-01 | Torralba, Carlos | Door module with peripheral seal |
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Also Published As
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US20140300062A1 (en) | 2014-10-09 |
JPWO2013065701A1 (ja) | 2015-04-02 |
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