WO2021251193A1 - カバー部材 - Google Patents

カバー部材 Download PDF

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Publication number
WO2021251193A1
WO2021251193A1 PCT/JP2021/020687 JP2021020687W WO2021251193A1 WO 2021251193 A1 WO2021251193 A1 WO 2021251193A1 JP 2021020687 W JP2021020687 W JP 2021020687W WO 2021251193 A1 WO2021251193 A1 WO 2021251193A1
Authority
WO
WIPO (PCT)
Prior art keywords
cover member
outer peripheral
intermediate layer
central portion
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2021/020687
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
慎之介 河井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hayashi Telempu Corp
Original Assignee
Hayashi Telempu Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hayashi Telempu Corp filed Critical Hayashi Telempu Corp
Priority to JP2022530474A priority Critical patent/JP7608457B2/ja
Priority to CN202180033617.1A priority patent/CN115551744A/zh
Publication of WO2021251193A1 publication Critical patent/WO2021251193A1/ja
Anticipated expiration legal-status Critical
Priority to JP2024220841A priority patent/JP2025026759A/ja
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R5/00—Compartments within vehicle body primarily intended or sufficiently spacious for trunks, suit-cases, or the like
    • B60R5/04—Compartments within vehicle body primarily intended or sufficiently spacious for trunks, suit-cases, or the like arranged at rear of vehicle
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F7/00—Vibration-dampers; Shock-absorbers

Definitions

  • the present invention relates to a cover member.
  • the vehicle is provided with a cover member such as a tonneau cover that covers the opening of the luggage compartment as described in Patent Document 1, and an interior material as described in Patent Document 2.
  • the tonneau cover described in Patent Document 1 includes a wire connected in a substantially rectangular shape, a edging member that wraps the wire along the wire, and a sheet that is attached to the edging member and covers an area surrounded by the edging member.
  • the interior material described in Patent Document 2 has a breathable design layer, a breathable cushioning material layer, and a breathable adhesive layer provided between the design layer and the cushioning material layer. ..
  • the tonneau cover described in Patent Document 1 has a light-shielding property so that the inside of the luggage compartment cannot be visually recognized from the outside, but does not have a vibration-damping property. Therefore, when vibration or noise is generated in the luggage compartment, the vibration or noise cannot be blocked. Even if the interior material described in Patent Document 2 is applied to the cover member, each layer has air permeability, and vibration and noise cannot be blocked. In particular, in recent years, there has been a demand for weight reduction of the cover member, so that the vibration damping property is further poor. Therefore, an object of the present invention is to provide a cover member having a light-shielding property and capable of blocking vibration and noise.
  • the cover member of the present invention including the central portion and the outer peripheral portion located on the outer periphery of the central portion includes a pair of sheet-shaped skin materials arranged so as to face each other, and at least one of a sound absorbing layer and a sound insulating layer. It has an intermediate layer including, and an outer peripheral holding member located on the outer peripheral portion, and the pair of skin materials are held by the outer peripheral holding member in a state of being overlapped with each other in the outer peripheral portion, and face each other at a distance in the central portion.
  • the intermediate layer is characterized in that it is arranged in the space between the pair of skin materials in the central portion.
  • FIG. 3 is a cross-sectional view taken along the line AA of FIG. It is an enlarged sectional view of the central part of the cover member shown in FIGS. 1 and 2. It is a graph which shows the soundproofing performance of the cover member of this embodiment in comparison with the soundproofing performance of a conventional tonneau cover. It is sectional drawing of the main part of the cover member of another embodiment of this invention. It is sectional drawing of the cover member of still another embodiment of this invention.
  • FIG. 1 is a perspective view of a cover member 1 according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view taken along the line AA of FIG.
  • FIG. 3 is an enlarged cross-sectional view of the central portion 1a of the cover member 1 shown in FIGS. 1 and 2.
  • the cover member 1 has a substantially rectangular outer shape including a central portion 1a and an outer peripheral portion 1b located on the outer periphery of the central portion 1a, similarly to the conventional cover member. ..
  • FIG. 1 is a perspective view of a cover member 1 according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view taken along the line AA of FIG.
  • FIG. 3 is an enlarged cross-sectional view of the central portion 1a of the cover member 1 shown in FIGS. 1 and 2.
  • the cover member 1 has a substantially rectangular outer shape including a central portion 1a and an outer peripheral portion 1b located on the outer periphery of the central portion 1a, similarly to
  • the cover member 1 is mainly located on a pair of sheet-shaped skin materials 2a and 2b having light-shielding properties arranged so as to face each other, an intermediate layer 3, and an outer peripheral portion. It has an outer peripheral holding member 4.
  • the outer peripheral holding member 4 can hold the outer peripheral holding member 4 by sandwiching the sheet-shaped member.
  • the pair of skin materials 2a and 2b are held by the outer peripheral holding member 4 in a state of being overlapped with each other in the outer peripheral portion 1b. Then, in the central portion 1a, the pair of skin materials 2a and 2b face each other at a distance from each other.
  • the intermediate layer 3 is arranged in the space between the pair of skin materials 2a and 2b of the central portion 1a.
  • the intermediate layer 3 includes at least one of a sound absorbing layer and a sound insulating layer.
  • the pair of skin materials 2a and 2b may be made of different materials.
  • the upper skin material 2a is made of the same material as the sheet of Patent Document 1, and is an elastic member such as a jersey woven fabric such as nylon or polyester.
  • the lower skin material 2b is made of, for example, a needle punch.
  • the upper side and the lower side referred to here refer to a side located above and a side located below with the cover member 1 arranged so as to cover the opening of the luggage compartment of the vehicle.
  • the upper side is located on the side of the vehicle's living room, and the lower side faces the inside of the luggage compartment.
  • the lower skin material 2b may be a lightweight needle punch because it is normally invisible to the eye.
  • the present invention is not limited to this example, and the lower skin material 2b may also be an elastic member such as a jersey woven fabric such as nylon or polyester.
  • the tonneau cover of Patent Document 1 only one sheet made of jersey woven fabric or the like is attached to one side of the wire when viewed from the wire.
  • the upper skin material 2a and the lower skin material 2b, respectively are provided when viewed from the wire 4a of the outer peripheral holding member 4 described later.
  • the skin materials 2a and 2b extend from the central portion 1a to a part of the outer peripheral portion 1b, but do not reach the outermost peripheral edge of the cover member 1.
  • the outer peripheral holding member 4 of the present embodiment includes a wire 4a and a cloth member 4b that wraps at least a part of the wire 4a.
  • the wire 4a of the present embodiment has a circular cross section, and the cloth member 4b comes into contact with about half of the contour of the cross section of the wire 4a from the outer peripheral side of the wire 4a and then with the upper side of the wire 4a. It extends toward the central portion 1a on the lower side and overlaps the upper and lower skin materials 2a and 2b, respectively.
  • the cross section of the wire 4a is not limited to a circular shape, but may be a rectangular shape, a trapezoidal shape, or the like.
  • the upper cloth member 4b is folded downward toward the lower side at a portion overlapping the skin material 2a and is in contact with the upper skin material 2a.
  • the lower cloth member 4b is folded upward toward the upper side at a portion overlapping the skin material 2b and is in contact with the lower skin material 2b.
  • the skin materials 2a and 2b extend to the outer peripheral side until the position where they abut on the wire 4a or immediately before the position. Therefore, the wire 4a is located on the outer peripheral side of the skin materials 2a and 2b, and the cloth member 4b that covers the wire 4a from the outer peripheral side overlaps the skin materials 2a and 2b on the central portion 1a side of the wire 4a.
  • the folded and doubled cloth member 4b sandwiches the portion where the skin materials 2a and 2b directly overlap each other from above and below. Then, the cloth member 4b is sewn to the skin materials 2a and 2b, and the outer peripheral holding member 4 is fixed to the skin materials 2a and 2b. The outer peripheral side ends of the skin materials 2a and 2b are sandwiched and held by the outer peripheral holding member 4 over substantially the entire circumference, and the space existing in the central portion 1a is sealed on the outer peripheral side.
  • the intermediate layer 3 is arranged in the space between the pair of skin materials 2a and 2b.
  • the intermediate layer 3 of the present embodiment has two layers in which, for example, a sound insulating layer 3a made of polyethylene and a sound absorbing layer 3b made of felt are laminated in this order from the lower skin material 2b toward the upper skin material 2a. It is a structure. Therefore, in the central portion 1a, the lower skin material 2b, the sound insulating layer 3a, the sound absorbing layer 3b, and the upper skin material 2a are arranged in this order in the thickness direction of the cover member 1.
  • the cover member 1 of the present embodiment has a light-shielding property, and when used as a tonneau cover for covering the luggage compartment of a vehicle, for example, articles inside the luggage compartment can be prevented from being seen from the outside. Further, since the intermediate layer 3 includes at least one of the sound insulating layer 3a and the sound absorbing layer 3b, it is possible to suppress the transmission of noise from the luggage compartment side to the living room.
  • the conventional tonneau cover has a light-shielding property by a sheet (skin material) made of one jersey woven fabric or the like, but has poor sound insulation and sound absorption. Therefore, when some kind of noise is generated in the luggage compartment or when the noise generated in the lower part of the vehicle body invades the luggage compartment, those sounds are transmitted to the living room through the tonneau cover and become noise to the occupants.
  • the cover member 1 of the present embodiment has a pair of skin materials 2a and 2b and an intermediate layer 3 including at least one of a sound insulating layer 3a and a sound absorbing layer 3b, it exhibits light-shielding property.
  • the graph of FIG. 4 shows the soundproofing performance according to the present embodiment in comparison with the soundproofing performance of the conventional tonneau cover.
  • This graph shows the soundproofing performance for sounds of various frequencies, and is represented by a relative value based on the soundproofing performance of a package tray, which is a general interior material for vehicles.
  • the cover member 1 of the present embodiment exhibits much higher soundproofing performance than the conventional tonneau cover.
  • the cover member 1 of the present embodiment can exhibit high soundproofing performance for high frequency sounds of about 1100 Hz or higher, particularly 1600 Hz or higher, which is particularly jarring to the occupants, and has a great practical effect.
  • three relatively lightweight and inexpensive layers for example, a lower skin material 2b made of a needle punch, a sound insulating layer 3a made of polyethylene, and a sound absorbing layer 3b made of felt. ) Is added to the conventional cover member, and high soundproofing performance based on the vibration damping property of the intermediate layer 3 can be realized without increasing the weight and manufacturing cost so much.
  • the lower skin material 2b has a thickness of 1.5 t and a basis weight of 150 g / m 2
  • the sound insulation layer 3a has a thickness of 0.5 t and a basis weight of 150 g / m 2 , a sound absorbing layer.
  • the thickness of 3b is 12 tons and the basis weight is 400 g / m 2
  • the thickness of the upper skin material 2a is 1 ton and the basis weight is 200 g / m 2 to 300 g / m 2 .
  • each layer is represented by a relative value when the thickness of the upper skin material 2a is 1t.
  • three layers lower skin material 2b, sound insulating layer 3a, and sound absorbing layer
  • 3b has been added.
  • the additional three layers may be bonded to each other, and for example, by adopting the same configuration as the vehicle interior material of Patent Document 2, the manufacturing cost can be reduced as compared with the suture configuration and the like.
  • the additional three layers may be configured not to be coupled to each other.
  • the total basis weight of the additional three layers is 700 g / m 2 .
  • the soundproofing performance can be adjusted by changing the basis weight of the intermediate layer 3. For example, by adjusting the basis weight of the intermediate layer 3, it is possible to adjust a frequency band having a particularly large soundproofing effect and obtain a more appropriate soundproofing effect according to the application.
  • the cover member of the present embodiment When the cover member of the present embodiment is arranged, for example, in the luggage compartment of a vehicle, it is preferable that the sound absorbing layer 3b of the intermediate layer 3 is located above the sound insulating layer 3a. With such a configuration, it is possible to prevent the sound from the luggage compartment from being transmitted to the occupant while insulating the sound from the luggage compartment so that it is not transmitted to the occupant. Further, since the soft sound absorbing layer 3b and the upper skin material 2a are located on the upper surface side of the cover member 1, the upper surface of the cover member 1 is flexible and stable when an article is placed on it.
  • the intermediate layer 3 preferably has a sound insulating layer 3a and a sound absorbing layer 3b.
  • a configuration in which the intermediate layer 3 has only the sound absorbing layer 3b or a configuration having only the sound insulating layer 3a is included in the present invention because the above-mentioned effects of the present invention can be obtained.
  • Such a configuration is effective in terms of cost reduction.
  • a plurality of sound insulating layers 3a and sound absorbing layers 3b may be provided. It is preferable that the cover member of the present invention has a non-breathable structure because it has a greater effect of suppressing sound transmission.
  • the intermediate layer 3 is thicker than the thickness L1 of the entire cover member in the portion where the cloth member 4b of the outer peripheral holding member 4 encloses a part of the wire 4a. It is preferable that the maximum thickness L2 is large. According to such a configuration, the vibration damping effect is larger, and the stability when the article is placed on the cover member 1 is good. In the configuration without the intermediate layer 3 or in the configuration in which the intermediate layer 3 is thin, the central portion 1a is thin and easily bent, so that the stability when an article is placed is poor. The article can be held stably.
  • the intermediate layer 3 and one of the skin materials for example, the upper skin material 2a do not come into contact with each other, and the intermediate layer 3 and the upper skin material are not in contact with each other.
  • the effect of suppressing sound transmission is further improved by the sound absorption effect of the gap 5.
  • the intermediate layer 3 can be stably held, the intermediate layer 3 and the lower skin material 2b do not come into contact with each other, and the gap 5 is provided between the intermediate layer 3 and the lower skin material 2b.
  • a thin portion 6 having a thin intermediate layer 3 is provided in a part of the central portion 1a.
  • the thin-walled portion 6 can also be formed by providing a portion of the central portion 1a in which the intermediate layer 3 does not exist.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
PCT/JP2021/020687 2020-06-12 2021-05-31 カバー部材 Ceased WO2021251193A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2022530474A JP7608457B2 (ja) 2020-06-12 2021-05-31 カバー部材
CN202180033617.1A CN115551744A (zh) 2020-06-12 2021-05-31 盖构件
JP2024220841A JP2025026759A (ja) 2020-06-12 2024-12-17 カバー部材

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020-102449 2020-06-12
JP2020102449 2020-06-12

Publications (1)

Publication Number Publication Date
WO2021251193A1 true WO2021251193A1 (ja) 2021-12-16

Family

ID=78845649

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/020687 Ceased WO2021251193A1 (ja) 2020-06-12 2021-05-31 カバー部材

Country Status (3)

Country Link
JP (2) JP7608457B2 (https=)
CN (1) CN115551744A (https=)
WO (1) WO2021251193A1 (https=)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001191854A (ja) * 2000-01-12 2001-07-17 Suzuki Motor Corp トノカバーの配設構造
JP2007038854A (ja) * 2005-08-03 2007-02-15 Hayashi Engineering Inc 自動車用内装材およびその製造方法
JP2016060070A (ja) * 2014-09-17 2016-04-25 盟和産業株式会社 積層板
JP2020181063A (ja) * 2019-04-24 2020-11-05 株式会社イノアックコーポレーション 吸音ボード、パッケージトレイ、ラゲッジボード及び遮音構造

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59192440U (ja) * 1983-06-10 1984-12-20 河西工業株式会社 トノカバ−の端部構造
JPH0510919U (ja) * 1991-07-23 1993-02-12 ダイキン工業株式会社 室外機の防音構造
JP3322836B2 (ja) * 1998-08-06 2002-09-09 河西工業株式会社 車両用トノボード
JP2002002408A (ja) * 2000-06-21 2002-01-09 Sanwa Kogyo Kk 車両用防音材
JP2005178642A (ja) * 2003-12-22 2005-07-07 Isuzu Motors Ltd 耐熱性吸音部材
JP4976841B2 (ja) 2006-12-25 2012-07-18 株式会社イノアックコーポレーション 車両用パッケージトレイ
JP5459835B2 (ja) * 2008-08-08 2014-04-02 ニチアス株式会社 自動車用防音カバー
JP2011156897A (ja) * 2010-01-29 2011-08-18 Nichias Corp 防音カバー及びその製造方法
KR20170093423A (ko) * 2016-02-05 2017-08-16 주식회사 대솔오시스 흡차음 성능을 가진 자동차용 러기지 보드
JP6828644B2 (ja) * 2017-09-27 2021-02-10 トヨタ紡織株式会社 車両用内装材における吸音材の配置構造
WO2019097880A1 (ja) * 2017-11-17 2019-05-23 林テレンプ株式会社 トノカバー、及び、トノカバー装置
JP7171292B2 (ja) 2018-07-26 2022-11-15 株式会社イノアックコーポレーション デッキボード

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001191854A (ja) * 2000-01-12 2001-07-17 Suzuki Motor Corp トノカバーの配設構造
JP2007038854A (ja) * 2005-08-03 2007-02-15 Hayashi Engineering Inc 自動車用内装材およびその製造方法
JP2016060070A (ja) * 2014-09-17 2016-04-25 盟和産業株式会社 積層板
JP2020181063A (ja) * 2019-04-24 2020-11-05 株式会社イノアックコーポレーション 吸音ボード、パッケージトレイ、ラゲッジボード及び遮音構造

Also Published As

Publication number Publication date
JP7608457B2 (ja) 2025-01-06
JP2025026759A (ja) 2025-02-21
JPWO2021251193A1 (https=) 2021-12-16
CN115551744A (zh) 2022-12-30

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