Vehicle

Abstract

To provide a vehicle that can inhibit noise from entering a cabin side via an opening through which a seat belt is inserted.SOLUTION: In a vehicle, a first roller 17 is installed on a side of a first end 151 of a first leaf spring 15, a second roller 18 is installed on a side of a second end 161 of a second leaf spring 16, a third end 152 of the first leaf spring 15 is connected to a first surface 141, a fourth end 162 of the second leaf spring 16 is connected to a second surface 142, rotation shafts of the first roller 17 and the second roller 18 are disposed so as to be in substantially parallel with each other, the first leaf spring 15 can extend and contract in a direction of approaching or separating from the first surface 141, the second leaf spring 16 can extend and contract in a direction of approaching or separating from the second surface 142, and a seat belt 32 is disposed between the first roller 17 and the second roller 18 while abutting thereon.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a vehicle in which a seat belt is pulled out from an opening formed in the vehicle body. [Background technology]

[0002] A seat belt is a belt attached to seats in automobiles, airplanes, etc., that secures the body to the seat and prevents the body from being thrown out in the event of a collision, etc. The seat belt is placed around the occupant's body from the shoulders to the waist, with the upper end fixed to the vehicle body and the lower end fixed to the seat.

[0003] Furthermore, a sound-proofing mechanism may be attached to the seat belt mechanism and its surrounding area. This matter is described in, for example, Patent Document 1 and Patent Document 2.

[0004] Patent Document 1 describes a seatbelt retractor having a configuration for blocking sound from outside the vehicle cabin by closing the gap between an opening in a partition plate and the retractor body. Specifically, the retractor cover is provided with a guide portion that extends upward and guides the webbing being unwound from the retractor. The retractor cover also has flange portions that bulge out at approximately right angles to the guide portions. The flange portions of the retractor cover reliably close the gap between the opening in the partition plate and the webbing unwound portion of the retractor. Furthermore, the flange portions have a hollow storage portion formed therein, and sound-absorbing material can be installed in the storage portion as needed.

[0005] Patent Document 2 describes a rear sound insulation structure that can suppress the intrusion of external noise. Specifically, a sealant is provided between the front and rear recesses of the retractor and the interior side surface of the vehicle, and extends along the front and rear recesses of the retractor. As a result, the retractor, the front and rear recesses of the retractor, and the sealant form a shielding portion that suppresses noise from intruding into the space formed between the interior side surface of the vehicle and the rear pillar trim. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Utility Model Application Publication No. 61-131354 [Patent Document 2] Japanese Patent Application Laid-Open No. 2014-043157 Summary of the Invention [Problem to be solved by the invention]

[0007] However, the inventions described in the above-mentioned patent documents leave room for improvement in terms of improving sound insulation around the seat belt.

[0008] Specifically, one end of the seat belt is inserted through an opening formed in the vehicle body. Therefore, there is a risk that noise generated during traveling may enter the vehicle interior from the vehicle body side through the opening. In this regard, the invention related to the background art improves sound insulation around the seat belt, but does not provide a measure to prevent so-called "loose noise" from entering the vehicle interior through the opening.

[0009] The present invention has been made in consideration of such problems, and an object of the present invention is to provide a vehicle that can prevent noise from entering the passenger compartment through the opening through which the seat belt passes. [Means for solving the problem]

[0010] A vehicle according to an embodiment of the present invention is a vehicle equipped with a seat belt and a seat, wherein an opening for pulling out the seat belt is provided near the seat, and a first surface, a second surface, a first leaf spring, a second leaf spring, a first roller, and a second roller are provided near the opening, the first roller is installed on a first end side of the first leaf spring, the second roller is installed on a second end side of the second leaf spring, a third end of the first leaf spring is connected to the first surface, and a fourth end of the second leaf spring is connected to the second surface, the rotation axes of the first roller and the second roller are arranged to be approximately parallel, the first leaf spring is expandable and contractible in a direction approaching or moving away from the first surface, and the second leaf spring is expandable and contractible in a direction approaching or moving away from the second surface, and the seat belt is positioned in contact between the first roller and the second roller. [Effects of the Invention]

[0011] In a vehicle according to an embodiment of the present invention, the opening through which the seat belt is withdrawn can be blocked by the first leaf spring, the second leaf spring, etc. This prevents noise from being transmitted into the vehicle cabin through the opening, improving quietness within the vehicle cabin. Specifically, it prevents road noise, water dripping noise, exhaust noise, etc. from being transmitted into the vehicle cabin through the opening. Furthermore, the seat belt can be guided by the rotatably installed first roller and second roller, allowing smooth withdrawal and retraction of the seat belt. Specifically, the elastic action of the first leaf spring and the second leaf spring allows the first roller and the second roller to follow the movement of the seat belt, resulting in smooth withdrawal and retraction of the seat belt. Furthermore, the first leaf spring and the second leaf spring also function as an adjustment mechanism for adjusting the location where the seat belt is withdrawn. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a cross-sectional view showing a state in which a seat belt is being used in a vehicle according to an embodiment of the present invention. [Figure 2]1 is a cross-sectional view showing a state in which a seat belt is not used in a vehicle according to an embodiment of the present invention. [Figure 3] FIG. 2 is a front view showing a rear seat and a pillar in the vehicle according to the embodiment of the present invention. [Figure 4] 1 is a cross-sectional view showing the structure of an opening and its vicinity in a vehicle according to an embodiment of the present invention. [Figure 5] 1 is a cross-sectional view showing the structure of an opening and its vicinity in a vehicle according to an embodiment of the present invention, showing a state in which a seat belt is pulled downward. [Figure 6] 1 is a cross-sectional view showing the structure of an opening and its vicinity in a vehicle according to an embodiment of the present invention, showing a state in which a seat belt is pulled upward. DETAILED DESCRIPTION OF THE INVENTION

[0013] A vehicle 10 according to an embodiment of the present invention will be described in detail below with reference to the drawings. In the following description, the front, rear, up, down, left and right directions are used, but left and right refer to the left and right when the vehicle 10 is viewed from the front. Furthermore, in the following description, the same components are generally designated by the same reference numerals, and repeated description will be omitted.

[0014] FIG. 1 is a cross-sectional view of a vehicle 10 showing a state in which a seat belt 32 is being used.

[0015] The vehicle 10 is, for example, an engine vehicle, a BEV (Battery Electric Vehicle), an HEV (Hybrid Electric Vehicle), or a PHEV (Plug-in Hybrid Electric Vehicle).

[0016] Here, the state is shown in which an occupant 11 seated in a rear seat 25 is fastening a seat belt 32.

[0017] The rear seat 25 has, from below, a seat cushion 251, a seat back 252, and a headrest 253. The occupant 11 is seated in the rear seat 25.

[0018] The seat belt device 23 includes a seat belt 32, a retractor 28, a tongue plate 30, a buckle 29, and the like.

[0019] The retractor 28 is provided at the bottom inside the pillar 26, which is, for example, a B-pillar. The retractor 28 has a belt reel (not shown) that winds and holds the seat belt 32 within its housing, and a winding spring mechanism (not shown) that constantly urges the belt reel in the winding direction. Here, the retractor 28 may have an electric mechanism that winds and unwinds the seat belt 32 using a motor.

[0020] One end of the seat belt 32 is attached to a retractor 28, passes through a through ring 27 fixed to the upper part of the pillar 26, has an intermediate portion passing through a tongue plate 30, and the other end is fixed to an end portion 31 below the pillar 26. The seat belt 32 has a uniform width and is made of, for example, woven polyester, carbon, or cloth. Furthermore, the seat belt 32 is pulled out toward the passenger compartment through an opening 12 formed on the inner surface of the pillar 26.

[0021] The pillar 26 is a B-pillar having a pillar panel 261 and a pillar trim 262. An opening 12 is formed by opening the pillar trim 262, and the seat belt 32 is pulled out from the opening 12 into the vehicle cabin. In addition, an opening module 13 is disposed near the opening 12 to suppress noise from entering the vehicle cabin via the opening 12. The specific configuration of the opening module 13 will be described later with reference to FIG. 4 etc.

[0022] The tongue plate 30 is attached to the buckle 29 and has a hole formed therein through which the seat belt 32 is inserted. The tip of the tongue plate 30 is inserted into the buckle 29 and fixed thereto.

[0023] The buckle 29 is fixed to the lower edge of the rear seat 25 by an anchor 34 .

[0024] With the occupant 11 seated in the rear seat 25, the seat belt 32 is passed over the body and the tongue plate 30 is inserted and fixed into the buckle 29. In this state, the torso seat belt 321 that is hung diagonally across the upper body of the occupant 11 restrains the shoulders and waist of the occupant 11, and the waist seat belts 322 that are hung on the left and right sides across the waist of the occupant 11 restrain the waist of the occupant 11 to the rear seat 25.

[0025] 2 is a cross-sectional view showing a state in which the seat belt 32 is not being used in the vehicle 10. Referring to this figure, when the seat belt 32 is not being used, the tongue plate 30 is disengaged from the buckle 29, and the seat belt 32 is retracted by the retractor 28. Therefore, the lap seat belt 322 stretches along the pillar trim 262.

[0026] FIG. 3 is a front view showing a rear seat 25 and a pillar 26 in a vehicle 10. Seat belts 32 and the like are not shown here. Referring to this figure, the pillars 26 are disposed on both left and right end portions of the body of the vehicle 10. An opening 12 is formed on the inner surface of each pillar 26. As is clear from this figure, the opening 12 of the pillar 26, which is a B-pillar, is located near a headrest 253 that supports the head of the occupant 11. Therefore, if noise enters the vehicle cabin through the opening 12, the impact of the noise on the occupant 11 will be significant. In this embodiment, the opening 12 is blocked by an opening module 13 (described later), thereby suppressing noise from entering the vehicle cabin through the opening 12 and reducing the impact of the noise on the occupant 11.

[0027] Fig. 4 is a cross-sectional view showing the structure of the opening 12 and its vicinity in the vehicle 10. Here, Fig. 4, Fig. 5, and Fig. 6 are cross-sections taken along the line AA in Fig. 3. The line AA is a plane that includes the up-down and left-right directions.

[0028] In this embodiment, an opening module 13 is disposed in the opening 12. The opening module 13 closes the opening 12 and suppresses noise from entering the vehicle interior.

[0029] The opening module 13 mainly includes a first leaf spring 15, a second leaf spring 16, a first roller 17, and a second roller 18, which are arranged near the opening 12.

[0030] As described above, the opening 12 is disposed near the seat 24 and is an opening for withdrawing the seat belt 32. Here, the cavity continuing from the opening 12 has a first surface 141 and a second surface 142. The first surface 141 and the second surface 142 are inner surfaces of the cavity that face each other in the up-down direction. The opening 12 is not only an outlet for the seat belt 32 but also a communication port that connects the pillar 26 to the vehicle interior. Therefore, there is a risk that noise may enter the vehicle interior from the wheel well and water trim (not shown) via the pillar 26 and the opening 12. In this embodiment, by blocking the opening 12 with the opening module 13, it is possible to suppress noise from entering the vehicle interior via the opening 12.

[0031] The first leaf spring 15 is, for example, a curved metal plate, and has a first end 151 and a third end 152. The first end 151 is connected to the first rotation shaft 171 of the first roller 17. The third end 152 is connected to the first surface 141. The first leaf spring 15 can expand and contract in a direction approaching or moving away from the first surface 141. The first leaf spring 15 is in a curved state, generating a biasing force.

[0032] The second leaf spring 16 is a curved metal plate, similar to the first leaf spring 15. The second leaf spring 16 has a second end 161 and a fourth end 162. The second end 161 is connected to the second rotation shaft 181 of the second roller 18. The fourth end 162 is connected to the second surface 142. The second leaf spring 16 can expand and contract in a direction approaching or moving away from the second surface 142. The second leaf spring 16 is in a curved state, generating a biasing force.

[0033] In this embodiment, the first leaf spring 15 and the second leaf spring 16 support the first roller 17 and the second roller 18 so that they can move in the up-down direction, and also serve as members that close the opening 12.

[0034] The first roller 17 is a substantially cylindrical member having a central axis in the front-rear direction. The first roller 17 presses the seat belt 32 from above.

[0035] The first rotating shaft 171 is a rotating shaft of the first roller 17 and extends in the front-to-rear direction. The front end and rear end of the first rotating shaft 171 are connected to the first end 151 of the first leaf spring 15.

[0036] The second roller 18 is a substantially cylindrical member having a central axis in the front-to-rear direction, similar to the first roller 17. The second roller 18 presses the seat belt 32 from below. In other words, the seat belt 32 is disposed between the first roller 17 and the second roller 18 so as to abut against or be pressed by both of them.

[0037] The second rotating shaft 181 is a rotating shaft of the second roller 18 and extends in the front-to-rear direction, similar to the first rotating shaft 171. The front end and rear end of the second rotating shaft 181 are connected to the second end 161 of the second leaf spring 16.

[0038] The first roller 17 and the second roller 18 are arranged so as to be substantially parallel to each other. Similarly, the first rotating shaft 171 and the second rotating shaft 181 are arranged so as to be substantially parallel to each other. Furthermore, the first roller 17, the first rotating shaft 171, the second roller 18, and the second rotating shaft 181 are arranged so that their positions in the left-right direction are substantially the same.

[0039] FIG. 5 is a cross-sectional view showing the structure of the opening 12 and its vicinity in the vehicle 10, and shows the case where the seat belt 32 is pulled downward.

[0040] When the occupant 11 pulls the seat belt 32 downward to fasten it, the seat belt 32 is pulled out through the opening 12 into the vehicle cabin. This causes the first roller 17 and the second roller 18 to rotate. Specifically, the first roller 17 rotates counterclockwise on the page, and the second roller 18 rotates clockwise. Furthermore, when the occupant 11 pulls the seat belt 32 downward, the first roller 17 and the second roller 18 also displace downward. At this time, the first leaf spring 15 is expanded, and the second leaf spring 16 is compressed. Therefore, even if the first roller 17 and the second roller 18 are displaced downward as the seat belt 32 is pulled down, the first leaf spring 15 is expanded and the second leaf spring 16 is compressed, thereby maintaining the opening module 13 in a closed state. Furthermore, the first roller 17 and the second roller 18 maintain a state in which the seat belt 32 is sandwiched between them. Therefore, noise is prevented from entering the vehicle interior through the opening module 13.

[0041] FIG. 6 is a cross-sectional view showing the structure of the opening 12 and its vicinity in the vehicle 10, showing the state in which the seat belt 32 is pulled upward.

[0042] Specifically, when the occupant 11 pulls the seat belt 32 upward, the first roller 17 and the second roller 18 are displaced upward accordingly. As a result, the first roller 17 and the second roller 18 rotate and rise. As the first roller 17 and the second roller 18 rise, the first leaf spring 15 is compressed and the second leaf spring 16 is expanded. Therefore, even when the seat belt 32 is pulled up, the first roller 17 and the second roller 18 continue to pinch the seat belt 32, and no gaps are formed between the first roller 17 and the second roller 18 and the seat belt 32. Furthermore, the first leaf spring 15 and the second leaf spring 16 continue to block the opening module 13. Therefore, the opening 12 remains closed, thereby preventing noise from entering the vehicle interior via the opening 12.

[0043] The technical ideas that can be understood from the above-described embodiment will be described below together with their effects.

[0044] The vehicle of the present invention is a vehicle equipped with a seat belt and a seat, wherein an opening for pulling out the seat belt is disposed near the seat, and a first surface, a second surface, a first leaf spring, a second leaf spring, a first roller, and a second roller are disposed near the opening, the first roller is installed on a first end side of the first leaf spring, the second roller is installed on a second end side of the second leaf spring, a third end of the first leaf spring is connected to the first surface, and a fourth end of the second leaf spring is connected to the second surface, the rotation axes of the first roller and the second roller are disposed to be approximately parallel, the first leaf spring is expandable and contractible in a direction approaching or moving away from the first surface, and the second leaf spring is expandable and contractible in a direction approaching or moving away from the second surface, and the seat belt is disposed in contact between the first roller and the second roller. According to the vehicle of the present invention, the opening through which the seat belt is withdrawn can be blocked by the first leaf spring, the second leaf spring, etc. This reduces the transmission of noise into the vehicle interior through the opening, improving the quietness of the vehicle interior. Furthermore, the seat belt can be guided by the rotatably installed first roller and second roller, allowing for smooth withdrawal and retraction of the seat belt.

[0045] In addition, the vehicle of the present invention is characterized in that the opening is disposed on the vehicle body side near the seat. According to the vehicle of the present invention, the opening formed on the vehicle body side can be blocked by the first leaf spring, the second leaf spring, etc. Therefore, it is possible to suppress the transmission of noise into the vehicle cabin via the opening on the vehicle body side.

[0046] In the vehicle of the present invention, the seat is a rear seat, and the opening is disposed on the side of the vehicle body near the rear seat. According to the vehicle of the present invention, it is possible to suppress noise from entering the vehicle interior from the vehicle body near the rear seat through the opening.

[0047] In addition, in the vehicle of the present invention, the opening is closed by the first leaf spring, the second leaf spring, the first roller, and the second roller. According to the vehicle of the present invention, the leaf springs and rollers can further improve the sealing performance of the opening.

[0048] In the vehicle of the present invention, when the first roller and the second roller move toward the first surface, the first leaf spring is compressed and the second leaf spring is extended, and when the first roller and the second roller move toward the second surface, the first leaf spring is extended and the second leaf spring is compressed. According to the vehicle of the present invention, even if the first roller and the second roller move due to use of a seat belt, etc., the opening can be blocked by the first leaf spring and the second leaf spring, which are compressed or extended.

[0049] Although the embodiments of the present invention have been described above, the present invention is not limited to these and can be modified within the scope of the present invention. In addition, the above-described embodiments can be combined with each other.

[0050] Referring to FIG. 1, the opening 12 and the opening module 13 are disposed in the pillar 26, which is a B-pillar, but they may also be disposed in other pillars, such as a C-pillar.

[0051] Furthermore, referring to FIG. 1, the opening 12 and the opening module 13 are disposed in the pillar 26, but they may also be disposed in the upper end of the seat back 252 of the rear seat 25. [Explanation of symbols]

[0052] 10 vehicles 11 crew members 12 Opening 13 Aperture Module 141 Page 1 142 2nd page 15 First leaf spring 151 First end 152 Third end 16 Second leaf spring 161 Second end 162 4th end 17 First Roller 171 First rotation axis 18 Second Roller 181 Second rotation axis 23 Seatbelt device 24 sheets 25 rear seat 251 Seat Cushion 252 seat back 253 Headrest 26 Pillar 261 Pillar Panel 262 Pillar Trim 27 Slewing 28 Retractor 29 Buckle 30 Tongue Plate 31 End 32 Seatbelt 321 Torso seat belt 322 Waist seat belt 34 Anchor

Claims

1. A vehicle equipped with a seat belt and a seat, An opening for pulling out the seat belt is provided near the seat, a first surface, a second surface, a first leaf spring, a second leaf spring, a first roller, and a second roller are disposed near the opening; the first roller is installed on a first end side of the first leaf spring, the second roller is installed on a second end side of the second leaf spring, a third end of the first leaf spring connected to the first surface; a fourth end of the second leaf spring connected to the second surface; the rotation axes of the first roller and the second roller are arranged to be substantially parallel to each other; the first leaf spring is expandable and contractible in a direction approaching or moving away from the first surface, the second leaf spring is expandable and contractible in a direction approaching or moving away from the second surface, The vehicle is characterized in that the seat belt is disposed in contact between the first roller and the second roller.

2. 2. The vehicle according to claim 1, wherein the opening is disposed on a side of the vehicle body in the vicinity of the seat.

3. the seat is a rear seat, 2. The vehicle according to claim 1, wherein the opening is disposed on a side of the vehicle body in the vicinity of the rear seat.

4. 2. The vehicle according to claim 1, wherein the opening is closed by the first leaf spring, the second leaf spring, the first roller, and the second roller.

5. When the first roller and the second roller move toward the first surface, the first leaf spring is compressed and the second leaf spring is expanded, 2. The vehicle according to claim 1, wherein when the first roller and the second roller move toward the second surface, the first leaf spring is expanded and the second leaf spring is compressed.

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