JP3922879B2 - Sheet winding device and tonneau cover device - Google Patents

Sheet winding device and tonneau cover device Download PDF

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Publication number
JP3922879B2
JP3922879B2 JP2000370387A JP2000370387A JP3922879B2 JP 3922879 B2 JP3922879 B2 JP 3922879B2 JP 2000370387 A JP2000370387 A JP 2000370387A JP 2000370387 A JP2000370387 A JP 2000370387A JP 3922879 B2 JP3922879 B2 JP 3922879B2
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Japan
Prior art keywords
shaft
tonneau cover
sheet
take
coil spring
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JP2002174085A (en
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光政 山元
和生 山本
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SANCALL CORPORATION
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SANCALL CORPORATION
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Description

【0001】
【発明の属する技術分野】
本発明は、軽量化、コンパクト化および省スペース化を実現したシート巻取装置に関するものであって、特に、ステーションワゴン車などの後部座席の後ろに配設した荷物室の上部に、荷物を隠すためのトノカバーを設置するトノカバー装置や、窓を覆うように取り付けたシート状のサンシェードやブラインドなどを巻き取る装置として好適である。
【0002】
【従来の技術】
柔軟で幅広なシートを、シートを巻き取る回転方向に付勢されたシート巻き取り軸に巻き取り収容するシート巻取り装置は、車などの荷物室の開口部に取り付けるトノカバー装置や、窓を覆うように取り付けるサンシェードやブラインドなどの装置として利用されている。
【0003】
トノカバー装置は、ワゴン車などの後部座席の後ろの空間に形成した荷物室に置いた荷物を窓の外から見えないようにし、また、直射日光を遮るために、荷物室の上部を覆うようにトノカバーを配設する装置であり、荷物を出し入れするときや大きな荷物を載せるときは、トノカバー巻き取り軸にトノカバー巻き取って荷物室の上部を開口するようになっている。
【0004】
トノカバー装置は、車の左右のフレームに取り付けた支持体としてのサイドカバー間に回転自在に設けたトノカバーの巻き取り軸を備えている。トノカバーは、巻き取り軸にトノカバーの一端を固着してある。トノカバー装置は巻き取り軸の両端に巻き取り用のばねを取り付けた外ばね方式のものと、巻き取り軸を中空軸として巻き取り軸の中に巻き取り用のばねを取り付けた内ばね方式のものがある。
【0005】
外ばね方式のトノカバー装置40は、図3に示すように、車の左右のフレームに固設したサイドカバー41,42に渦巻きばね43の外端を固着し、左右のサイドカバー41,42の間に設けたトノカバー巻き取り軸44に渦巻きばね43の内端を固着し、トノカバー巻き取り軸44の外周面にトノカバー45の一端を固定したものである。なお、46はトノカバー45を収容する収容体46である。
【0006】
このトノカバー装置40は、トノカバー45を引き出したときに、渦巻きばね43が縮径する。そして、トノカバー45を巻き取るときは、渦巻きばね43の復元力によりトノカバー巻き取り軸44が回転してトノカバー45を自動的に巻き取るようになっている。
【0007】
内ばね方式のトノカバー装置50は、図4に示すように、サイドカバー51,52に、コイルばね53を内蔵した中空のトノカバー巻き取り軸54を回転自在に取り付けてある。トノカバー巻き取り軸54は、サイドカバー51に取り付けた装着軸51aと、サイドカバー52に取り付けた軸部材60との間に回動自在に架設してある。トノカバー巻き取り軸54の内部には、装着軸51aに片持ち支持状態で固設したばね軸57に筒体55を回転可能に被し、筒体55の外周面にコイルばね53が装着してある。コイルばね53の一端53aは中空のトノカバー巻き取り軸54に固着してあり、他端53bはばね軸57の遊端に繋止してある。トノカバー58は、トノカバー巻き取り軸54の外周面に一端を固定してある。なお、59はトノカバー58を収容する収容体である。
【0008】
このトノカバー装置50は、トノカバー58を引き出したときに、コイルばね53が縮径する。そして、トノカバー58を巻き取るときは、コイルばね53の復元力によりトノカバー巻き取り軸54が回転してトノカバー58を自動的に巻き取るようになっている。
【0009】
【発明が解決しようとする課題】
外ばね方式のトノカバー装置40は、構造が単純で部品点数が少なく、トノカバー45の巻き取りがスムーズに行える。反面、巻き取り用の渦巻きばね43をサイドカバー41,42内に収容しているので、コンパクト化が図り難いという問題がある。
【0010】
これに対して、内ばね方式のトノカバー装置50は、巻き取り用のコイルばね53がトノカバー巻き取り軸54の内部に設けてあるので、構造上コンパクト化を図ることができる。反面、コイルばね53とばね軸57との接触音を緩和するために塩化ビニール製の筒体55やばね軸57があるので部品点数が多く、塩化ビニール製の筒体55をコイルばね53とばね軸57の間に入れるなど組み立て工程も多い。また、トノカバー巻き取り軸54内に挿入してあるばね軸57が、エンジンの振動を受けてトノカバー巻き取り軸54の内部で振動し、異音が発生するなどの問題点もある。また、構造上の問題点としてトノカバー58を巻き取るときに塩化ビニール製の筒体55の外周面がコイルばね53のピッチ間に噛みこむ可能性があり、噛みこんだ場合、コイルばね53の有効長さが短くなりトノカバー58が引き出せなくなったり、トノカバー58を引き出したときにコイルばね53が弾性域を越えて変形してコイルばね53が破損してしまうことがある。
【0011】
近年、自動車はコンパクト化と軽量化が進むなかでトノカバー装置もその例外ではなく、よりコンパクト化が図れる内ばね方式のトノカバー装置が主流となりつつある。
【0012】
また、他のシート巻取装置も同様に、コンパクト化と軽量化の要請があり、内ばね方式のものが主流となりつつある。
【0013】
そこで、本発明は、内ばね方式のシート巻取装置の部品点数を少なくし、軽量化を図ること、および、異音の発生や筒体の噛みこみなどの不都合を解消することを目的とする。
【0014】
【課題を解決するための手段】
請求項1に記載のシート巻取装置は、左右両側に配設した樹脂製の支持体と、前記支持体間に回転自在に装着した中空のシート巻き取り軸と、前記シート巻き取り軸の外周面に一端を固定したシートと、前記シート巻き取り軸の中に配設したコイルばねであって、シートを引き出したときに弾性力を蓄積し、その復元力でシート巻き取り軸を回転させてシートを巻き取るようにしたコイルばねとを備えるシート巻取装置において、前記左右の支持体が対抗する面に、シート巻き取り軸の内部に装着してシート巻き取り軸を回転自在に軸支する装着軸を一体成形するとともに、シート巻き取り軸の一端部を回転自在に軸支する一方の装着軸の先端に前記コイルばねの一端を取り付け、シート巻き取り軸の中間部又は他端部に、コイルばねの他端を取り付け、かつ、前記シート巻き取り軸の両端部の内周面に、前記装着軸に対して摺動する樹脂製の摺動リングを固設したことを特徴とする。
【0015】
ここで、「支持体」はシート巻き取り軸の端部を摺動自在に装着する装着軸を備える部材である。
【0016】
このシート巻取装置は、トノカバー装置に限らず、サンシェード装置やブラインド装置など、シートを巻き取り収容する装置に広く適用することができる。
【0017】
請求項に記載のトノカバー装置は、車輌荷物室の左右両側に取り付ける樹脂製のサイドカバーと、前記サイドカバー間に回転自在に装着した中空のトノカバー巻き取り軸と、前記トノカバー巻き取り軸の外周面に一端を固定したトノカバーと、前記トノカバー巻き取り軸の中に配設したコイルばねであって、トノカバーを引き出したときに弾性力を蓄積し、その復元力でトノカバー巻き取り軸を回転させてトノカバーを巻き取るようにしたコイルばねとを備えるトノカバー装置において、前記左右のサイドカバーが対抗する面に、トノカバー巻き取り軸の内部に装着してトノカバー巻き取り軸を回転自在に軸支する装着軸を一体成形するとともに、トノカバー巻き取り軸の一端部を回転自在に軸支する一方の装着軸の先端に前記コイルばねの一端を取り付け、トノカバー巻き取り軸の中間部又は他端部に、コイルばねの他端を取り付け、かつ、前記トノカバー巻き取り軸の両端部の内周面に、前記装着軸に対して摺動する樹脂製の摺動リングを固設したことを特徴とする。
【0018】
【発明の実施の形態】
以下、本発明のシート巻取装置をトノカバー装置10に適用した実施の形態を説明する。
【0019】
このトノカバー装置10は、図1に示すように、車両荷物室の左右両側に取り付ける支持体としてのサイドカバー11,12と、サイドカバーに回転自在に取り付けた中空のトノカバー巻き取り軸13と、トノカバー巻き取り軸13の内部に装着し、一端14aをサイドカバー11に取り付け、他端をトノカバー巻き取り軸13に取り付けたコイルばね14を備えている。
【0020】
サイドカバー11,12は、樹脂製の部材でトノカバー巻き取り軸13の端部を摺動自在に装着する装着軸15,16が設けてあり、左側のサイドカバー11の装着軸15には、コイルばね14の一端14aを装着する装着部17が設けてある。装着部17の先端には、コイルばね14の一端を引っ掛ける突起を一体成形したものである。
【0021】
トノカバー巻き取り軸13は、金属製の中空の軸部材である。トノカバー巻き取り軸13の中間部には、コイルばね14の他端14bを装着するためのピン部材18がトノカバー巻き取り軸13に半径方向に突き刺して設けてある。このピン部材18は、コイルばね14の他端14bを引っ掛けて固定するための装着溝18aが形成してある。また、トノカバー巻き取り軸13の両端は、樹脂製の摺動リング19,20を装着してサイドカバー11,12の装着軸15,16に装着してある。この摺動リング19,20は樹脂製であり、サイドカバー11,12の装着軸15,16の磨耗を緩和する部材である。トノカバー21はトノカバー巻取り軸13に一端を固定してあり、左右のサイドカバー11,12の間にはトノカバー21の収容部構成する筒状のカバー22が設けてある。
【0022】
このトノカバー装置10は、トノカバー21を引き出したときに、トノカバー巻き取り軸13が回転してコイルばね14に弾性力を蓄積し、トノカバー21を巻き取るとき(引き出されたトノカバー21が開放されたとき)、コイルばね14の復元力によりトノカバー巻き取り軸13が(トノカバーを巻き取る方向に)回転してトノカバー21を自動的に巻き取るようになっている。
【0023】
このトノカバー装置10によれば、コイルばね14の一端を直接サイドカバーに取り付け、コイルばね14の他端をトノカバー巻取り軸13に取り付けているので、従来の内ばね方式のトノカバー装置50(図4参照)のコイルばね53の他端53bを取り付けていたばね軸57と塩化ビニール製の筒体55が不要となり、部品点数を減らし、軽量化を図ることができる。またトノカバー21を引き出すときに、塩化ビニール製の筒体55の外周面がコイルばね53のピッチ間に噛みこむといった問題や、エンジンの振動でばね軸57がトノカバー巻き取り軸53内で振動して異音を発生させるといった問題がなくなる。
【0024】
また、左側のサイドカバー11に一体的に設けた装着軸15に、トノカバー巻き取り軸13を装着するとともに、コイルばね14の一端を装着するようにしたので、サイドカバー11側にコイルばね14を取り付ける構造が簡単な構造となり、部品点数を減らすことができるとともに、コイルばね14の取り付け作業の作業性も向上する。
【0025】
以上、本発明のシート巻取装置をトノカバー装置に適用した実施の形態を説明したが、本発明は上記に限定されるものではない。
【0026】
例えば、トノカバー巻き取り軸13の中間部に設けるコイルばね14の端部14bを引っ掛けるピン部材18に代えて、図2(a)に示すように、コイルばね14の端部14bを引っ掛けることができる係合部25と、周方向の複数箇所(例えば、3箇所)に窪み26を備えた嵌着部材27をトノカバー巻き取り軸13の中に収容し、図2(b)に示すように、トノカバー巻き取り軸13を周方向の複数の方向(例えば、3方向)から内径方向に押し潰して嵌着部材27の窪み26に、トノカバー巻き取り軸13の端面13aを食い込ませて嵌着部材27をトノカバー巻き取り軸13に固定して、コイルばね14の端部をトノカバー巻き取り軸13に固定するようにしても良い。
【0027】
また、トノカバー巻取り軸の両端には、樹脂製の摺動リングに代えて、トノカバー巻取り軸の回転をスムーズにさせるためベアリングを設けても良い。
【0028】
上記のトノカバー装置は、シート巻取装置の一形態であり、サンシェード装置やブラインド装置などの他のシート巻取装置に適用することができる。
【0029】
【発明の効果】
請求項1に記載のシート巻取装置は、左右の支持体が対抗する面に、シート巻き取り軸の内部に装着してシート巻き取り軸を回転自在に軸支する装着軸を一体成形するとともに、シート巻き取り軸の一端部を回転自在に軸支する一方の装着軸の先端に前記コイルばねの一端を取り付け、シート巻き取り軸の中間部又は他端部に、コイルばねの他端を取り付けたので、コイルばねがシート巻き取り軸内に内蔵されているからコンパクト化を図ることができ、従来の内ばね方式のシート巻取装置(図4参照)のようにばね軸や塩化ビニール製の筒体が不要となり、部品点数の低減と軽量化を図ることができ、また、シートを引き出すときに塩化ビニール製の筒体がコイルばねに噛みこむといった問題や、ばね軸がシート巻き取り軸内で振動して異音を発生させるといった問題がなくなる。また、前記シート巻き取り軸の両端部の内周面に、前記装着軸に対して摺動する樹脂製の摺動リングを固設したので、サイドカバーの装着軸の磨耗を緩和することができる。
【0030】
請求項に記載のトノカバー装置は、車両荷物室の左右両側に取り付ける樹脂製のサイドカバーと、前記サイドカバー間に回転自在に装着した中空のトノカバー巻き取り軸と、前記トノカバー巻き取り軸の外周面に一端を固定したトノカバーと、前記トノカバー巻き取り軸の中に配設したコイルばねであって、トノカバーを引き出したときに弾性力を蓄積し、その復元力でトノカバー巻き取り軸を回転させてトノカバーを巻き取るようにしたコイルばねとを備えるトノカバー装置において、前記左右のサイドカバーが対抗する面に、トノカバー巻き取り軸の内部に装着してトノカバー巻き取り軸を回転自在に軸支する装着軸を一体成形するとともに、トノカバー巻き取り軸の一端部を回転自在に軸支する一方の装着軸の先端に前記コイルばねの一端を取り付け、トノカバー巻き取り軸の中間部又は他端部に、コイルばねの他端を取り付けたので、コイルばねがトノカバー巻き取り軸内に内蔵されてコンパクト化を図ることができ、従来の内ばね方式のトノカバー装置50(図4参照)のようにばね軸57や塩化ビニール製の筒体55が不要となり、部品点数を減らし、軽量化を図ることができ、また、トノカバーを引き出すときに塩化ビニール製の筒体55がコイルばね53に噛みこむといった問題や、エンジンの振動でばね軸57がトノカバー巻き取り軸53内で振動して異音を発生させるといった問題がなくなる。また、前記トノカバー巻き取り軸の両端部の内周面に、前記装着軸に対して摺動する樹脂製の摺動リングを固設したので、サイドカバーの装着軸の磨耗を緩和することができる。
【図面の簡単な説明】
【図1】 本発明の一実施形態に係るトノカバー装置の横断面図。
【図2】 本発明の他の実施形態に係るトノカバー装置の横断面図。
【図3】 従来の外ばね方式のトノカバー装置の横断面図。
【図4】 従来の内ばね方式のトノカバー装置の横断面図。
【符号の説明】
10 トノカバー装置
11,12 サイドカバー
13 トノカバー巻き取り軸
14 コイルばね
15,16 装着軸
17 装着部
18 ピン部材
18a 装着溝
19,20 摺動リング
21 トノカバー
25 突起
26 窪み
27 嵌着部材
[0001]
BACKGROUND OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat winding device that achieves weight reduction, compactness, and space saving, and in particular, hides luggage in the upper part of a luggage room disposed behind a rear seat such as a station wagon car. Therefore, it is suitable as a tonneau cover device for installing a tonneau cover or a device for winding a sheet-like sunshade or blind attached so as to cover a window.
[0002]
[Prior art]
A sheet take-up device that winds and accommodates a flexible and wide sheet on a sheet take-up shaft that is urged in the rotational direction of winding the sheet, and covers a tonneau cover device that is attached to an opening of a luggage compartment such as a car and a window It is used as a device such as a sunshade or a blind.
[0003]
The tonneau cover device covers the upper part of the luggage compartment so that the luggage placed in the luggage compartment formed in the space behind the back seat such as a wagon car cannot be seen from the outside of the window and to block direct sunlight. This device is provided with a tonneau cover, and when loading / unloading a luggage or placing a large luggage, the tonneau cover is wound around the tonneau cover winding shaft to open the upper portion of the luggage compartment.
[0004]
The tonneau cover device includes a tonneau take-up shaft that is rotatably provided between side covers as support bodies attached to left and right frames of a vehicle. The tonneau cover has one end of the tonneau cover fixed to the take-up shaft. The tonneau cover device has an outer spring type in which a winding spring is attached to both ends of the winding shaft, and an inner spring type in which the winding shaft is a hollow shaft and a winding spring is attached in the winding shaft. There is.
[0005]
As shown in FIG. 3, the outer spring type tonneau cover device 40 has the outer ends of the spiral springs 43 fixed to the side covers 41 and 42 fixed to the left and right frames of the vehicle, and the space between the left and right side covers 41 and 42 is fixed. The inner end of the spiral spring 43 is fixed to the tonneau cover take-up shaft 44 provided on the tonneau cover, and one end of the tonneau cover 45 is fixed to the outer peripheral surface of the tonneau cover take-up shaft 44. Reference numeral 46 denotes a housing 46 that houses the tonneau cover 45.
[0006]
In the tonneau cover device 40, when the tonneau cover 45 is pulled out, the spiral spring 43 is reduced in diameter. When the tonneau cover 45 is wound, the tonneau cover winding shaft 44 is rotated by the restoring force of the spiral spring 43 so that the tonneau cover 45 is automatically wound.
[0007]
In the inner spring type tonneau cover device 50, as shown in FIG. 4, a hollow tonneau cover winding shaft 54 incorporating a coil spring 53 is rotatably attached to the side covers 51 and 52. The tonneau cover winding shaft 54 is rotatably mounted between a mounting shaft 51 a attached to the side cover 51 and a shaft member 60 attached to the side cover 52. Inside the tonneau cover take-up shaft 54, a cylindrical body 55 is rotatably mounted on a spring shaft 57 fixed in a cantilevered manner on the mounting shaft 51a, and a coil spring 53 is mounted on the outer peripheral surface of the cylindrical body 55. is there. One end 53 a of the coil spring 53 is fixed to the hollow tonneau cover winding shaft 54, and the other end 53 b is fixed to the free end of the spring shaft 57. The tonneau cover 58 has one end fixed to the outer peripheral surface of the tonneau cover winding shaft 54. Reference numeral 59 denotes a container for housing the tonneau cover 58.
[0008]
In the tonneau cover device 50, when the tonneau cover 58 is pulled out, the coil spring 53 is reduced in diameter. When the tonneau cover 58 is wound, the tonneau cover winding shaft 54 is rotated by the restoring force of the coil spring 53 so that the tonneau cover 58 is automatically wound.
[0009]
[Problems to be solved by the invention]
The outer spring type tonneau cover device 40 has a simple structure and a small number of parts, and the tonneau cover 45 can be smoothly wound. On the other hand, since the spiral spring 43 for winding is housed in the side covers 41, 42, there is a problem that it is difficult to achieve compactness.
[0010]
On the other hand, the inner spring type tonneau cover device 50 can be compact in structure because the coil spring 53 for winding is provided inside the tonneau cover winding shaft. On the other hand, since there are the vinyl chloride cylinder 55 and the spring shaft 57 in order to relieve the contact sound between the coil spring 53 and the spring shaft 57, there are many parts, and the vinyl chloride cylinder 55 is connected to the coil spring 53 and the spring. There are many assembly processes such as putting it between the shafts 57. Another problem is that the spring shaft 57 inserted into the tonneau cover winding shaft 54 is vibrated inside the tonneau cover winding shaft 54 due to the vibration of the engine and generates abnormal noise. In addition, as a structural problem, when winding the tonneau cover 58, the outer peripheral surface of the vinyl chloride cylinder 55 may be caught between the pitches of the coil springs 53. The tonneau cover 58 may not be pulled out because the length is shortened, or when the tonneau cover 58 is pulled out, the coil spring 53 may be deformed beyond the elastic region and the coil spring 53 may be damaged.
[0011]
In recent years, as automobiles have become more compact and lighter, tonneau covers are no exception, and inner spring type tonneau covers that can be made more compact are becoming mainstream.
[0012]
Similarly, other sheet winding apparatuses are also required to be compact and lightweight, and the inner spring type is becoming mainstream.
[0013]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to reduce the number of parts of the inner spring type sheet winding device, to reduce the weight, and to eliminate inconveniences such as generation of abnormal noise and biting of a cylindrical body. .
[0014]
[Means for Solving the Problems]
The sheet winding device according to claim 1 is a resin support disposed on both left and right sides, a hollow sheet winding shaft rotatably mounted between the supports, and an outer periphery of the sheet winding shaft. A sheet spring having one end fixed to the surface, and a coil spring disposed in the sheet take-up shaft, which accumulates elastic force when the sheet is pulled out, and rotates the sheet take-up shaft with its restoring force In a sheet winding apparatus including a coil spring configured to wind a sheet, the sheet winding shaft is rotatably supported by being mounted inside the sheet winding shaft on a surface opposed to the left and right supports. While integrally forming the mounting shaft, one end of the coil spring is attached to the tip of one mounting shaft that rotatably supports one end of the sheet take-up shaft, and at the middle or other end of the sheet take-up shaft, The other end of the coil spring Mounting, and the inner peripheral surface of both ends of the sheet take-up shaft, characterized in that fixedly provided a resin sliding ring that slides relative to the mounting shaft.
[0015]
Here, the “support” is a member including a mounting shaft that slidably mounts an end portion of the sheet winding shaft.
[0016]
This sheet winding device is not limited to the tonneau cover device, and can be widely applied to devices that wind up and store sheets, such as sunshade devices and blind devices.
[0017]
The tonneau cover device according to claim 2 is a resin side cover attached to the left and right sides of a vehicle luggage compartment, a hollow tonneau cover winding shaft rotatably mounted between the side covers, and an outer periphery of the tonneau cover winding shaft. A tonneau cover with one end fixed to the surface, and a coil spring disposed in the tonneau cover take-up shaft, which accumulates elastic force when the tonneau cover is pulled out, and rotates the tonneau cover take-up shaft with its restoring force. In a tonneau cover device comprising a coil spring adapted to wind up the tonneau cover, a mounting shaft that is mounted inside the tonneau cover winding shaft and rotatably supports the tonneau cover winding shaft on the surface opposed to the left and right side covers The coil spring is formed at the tip of one mounting shaft that rotatably supports one end of the tonneau cover winding shaft. Attaching one end, an intermediate portion or the other end portion of the tonneau cover winding shaft, attaching the other end of the coil spring, and the inner peripheral surface of both end portions of the tonneau cover winding shaft, slides relative to the mounting shaft A resin-made sliding ring is fixed .
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment in which the sheet winding device of the present invention is applied to the tonneau cover device 10 will be described.
[0019]
As shown in FIG. 1, the tonneau cover device 10 includes side covers 11 and 12 as supports attached to the left and right sides of a vehicle luggage compartment, a hollow tonneau cover winding shaft 13 rotatably attached to the side cover, and a tonneau cover. A coil spring 14 is provided that is mounted inside the take-up shaft 13, has one end 14a attached to the side cover 11, and the other end attached to the tonneau cover take-up shaft 13.
[0020]
The side covers 11 and 12 are provided with mounting shafts 15 and 16 for slidably mounting the end portion of the tonneau cover winding shaft 13 with a resin member, and the mounting shaft 15 of the left side cover 11 includes a coil. A mounting portion 17 for mounting one end 14a of the spring 14 is provided. A projection that hooks one end of the coil spring 14 is integrally formed at the tip of the mounting portion 17.
[0021]
The tonneau cover winding shaft 13 is a metal hollow shaft member. A pin member 18 for mounting the other end 14b of the coil spring 14 is provided in an intermediate portion of the tonneau cover winding shaft 13 so as to pierce the tonneau cover winding shaft 13 in the radial direction. The pin member 18 is provided with a mounting groove 18a for hooking and fixing the other end 14b of the coil spring 14. Further, both ends of the tonneau cover winding shaft 13 are mounted on mounting shafts 15 and 16 of the side covers 11 and 12 by mounting resin sliding rings 19 and 20. The sliding rings 19 and 20 are made of resin, and are members that relieve wear of the mounting shafts 15 and 16 of the side covers 11 and 12. One end of the tonneau cover 21 is fixed to the tonneau cover take-up shaft 13, and a cylindrical cover 22 constituting a housing portion of the tonneau cover 21 is provided between the left and right side covers 11 and 12.
[0022]
The tonneau cover device 10 is configured such that when the tonneau cover 21 is pulled out, the tonneau cover take-up shaft 13 rotates to accumulate elastic force in the coil spring 14, and when the tonneau cover 21 is wound up (when the tonneau cover 21 pulled out is opened). ), The tonneau cover winding shaft 13 is rotated (in the direction of winding the tonneau cover) by the restoring force of the coil spring 14, and the tonneau cover 21 is automatically wound.
[0023]
According to the tonneau cover device 10, since one end of the coil spring 14 is directly attached to the side cover and the other end of the coil spring 14 is attached to the tonneau cover winding shaft 13, the conventional inner spring type tonneau cover device 50 (FIG. 4). The spring shaft 57 attached to the other end 53b of the coil spring 53 and the cylindrical body 55 made of vinyl chloride are not necessary, and the number of parts can be reduced and the weight can be reduced. Also, when pulling out the tonneau cover 21, the outer peripheral surface of the vinyl chloride cylinder 55 is caught between the pitches of the coil springs 53, and the spring shaft 57 vibrates in the tonneau cover take-up shaft 53 due to engine vibration. The problem of generating abnormal noise is eliminated.
[0024]
Since the tonneau cover take-up shaft 13 is attached to the attachment shaft 15 provided integrally with the left side cover 11, and one end of the coil spring 14 is attached, the coil spring 14 is attached to the side cover 11 side. The attachment structure is simple, the number of parts can be reduced, and the workability of the attachment work of the coil spring 14 is improved.
[0025]
As mentioned above, although embodiment which applied the sheet winding apparatus of this invention to the tonneau cover apparatus was described, this invention is not limited above.
[0026]
For example, instead of the pin member 18 that hooks the end 14b of the coil spring 14 provided in the intermediate portion of the tonneau cover winding shaft 13, the end 14b of the coil spring 14 can be hooked as shown in FIG. An engaging member 25 and a fitting member 27 provided with depressions 26 at a plurality of circumferential locations (for example, three locations) are accommodated in a tonneau cover take-up shaft 13, and as shown in FIG. The winding shaft 13 is crushed in the inner diameter direction from a plurality of circumferential directions (for example, three directions), and the end surface 13a of the tonneau cover winding shaft 13 is bitten into the recess 26 of the mounting member 27 so that the mounting member 27 is The end portion of the coil spring 14 may be fixed to the tonneau cover winding shaft 13 by being fixed to the tonneau cover winding shaft 13.
[0027]
Further, bearings may be provided at both ends of the tonneau cover winding shaft in order to smoothly rotate the tonneau cover winding shaft instead of the resin sliding ring.
[0028]
The tonneau cover device is a form of a sheet winding device, and can be applied to other sheet winding devices such as a sunshade device and a blind device.
[0029]
【The invention's effect】
The sheet winding apparatus according to claim 1 is integrally formed with a mounting shaft that is mounted inside the sheet winding shaft and rotatably supports the sheet winding shaft on a surface opposed to the left and right supports. One end of the coil spring is attached to the tip of one mounting shaft that rotatably supports one end of the sheet take-up shaft, and the other end of the coil spring is attached to the middle or other end of the sheet take-up shaft As a result, the coil spring is built into the seat take-up shaft, making it possible to reduce the size of the coil. As in the case of a conventional inner spring type seat take-up device (see Fig. 4), This eliminates the need for a cylinder, reducing the number of parts and reducing the weight. Also, when pulling out the sheet, the vinyl chloride cylinder bites into the coil spring. Vibrate with noise The problem of generating Further, since the resin sliding ring that slides with respect to the mounting shaft is fixed to the inner peripheral surface of both ends of the sheet winding shaft, the wear of the mounting shaft of the side cover can be reduced. .
[0030]
The tonneau cover device according to claim 2 is a resin side cover attached to the left and right sides of a vehicle luggage compartment, a hollow tonneau cover winding shaft rotatably mounted between the side covers, and an outer periphery of the tonneau cover winding shaft. A tonneau cover with one end fixed to the surface, and a coil spring disposed in the tonneau cover take-up shaft, which accumulates elastic force when the tonneau cover is pulled out, and rotates the tonneau cover take-up shaft with its restoring force. In a tonneau cover device comprising a coil spring adapted to wind up the tonneau cover, a mounting shaft that is mounted inside the tonneau cover winding shaft and rotatably supports the tonneau cover winding shaft on the surface opposed to the left and right side covers The coil spring is formed at the tip of one mounting shaft that rotatably supports one end of the tonneau cover winding shaft. Since one end is attached and the other end of the coil spring is attached to the middle part or the other end of the tonneau cover winding shaft, the coil spring is built in the tonneau cover winding shaft, so that it can be made compact. Unlike the spring-type tonneau cover device 50 (see FIG. 4), the spring shaft 57 and the vinyl chloride cylinder 55 are not required, so that the number of parts can be reduced and the weight can be reduced. This eliminates the problem that the vinyl cylinder 55 is engaged with the coil spring 53 and the problem that the spring shaft 57 vibrates in the tonneau cover winding shaft 53 due to engine vibration and generates abnormal noise. In addition, since the resin sliding ring that slides with respect to the mounting shaft is fixed on the inner peripheral surface of both ends of the tonneau cover winding shaft, wear of the mounting shaft of the side cover can be reduced. .
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a tonneau cover device according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of a tonneau cover device according to another embodiment of the present invention.
FIG. 3 is a cross-sectional view of a conventional outer spring type tonneau cover device.
FIG. 4 is a cross-sectional view of a conventional inner spring type tonneau cover device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Tonneau cover apparatus 11, 12 Side cover 13 Tonneau cover winding shaft 14 Coil spring 15, 16 Mounting shaft 17 Mounting part 18 Pin member 18a Mounting groove 19, 20 Sliding ring 21 Tonneau cover 25 Protrusion 26 Depression 27 Fitting member

Claims (2)

左右両側に配設した樹脂製の支持体と、前記支持体間に回転自在に装着した中空のシート巻き取り軸と、前記シート巻き取り軸の外周面に一端を固定したシートと、前記シート巻き取り軸の中に配設したコイルばねであって、シートを引き出したときに弾性力を蓄積し、その復元力でシート巻き取り軸を回転させてシートを巻き取るようにしたコイルばねとを備えるシート巻取装置において、
前記左右の支持体が対抗する面に、シート巻き取り軸の内部に装着してシート巻き取り軸を回転自在に軸支する装着軸を一体成形するとともに、シート巻き取り軸の一端部を回転自在に軸支する一方の装着軸の先端に前記コイルばねの一端を取り付け、シート巻き取り軸の中間部又は他端部に、コイルばねの他端を取り付け、かつ、前記シート巻き取り軸の両端部の内周面に、前記装着軸に対して摺動する樹脂製の摺動リングを固設したことを特徴とするシート巻取装置。
Resin supports disposed on both left and right sides, a hollow sheet take-up shaft rotatably mounted between the supports, a sheet having one end fixed to the outer peripheral surface of the sheet take-up shaft, and the sheet wind A coil spring disposed in the take-up shaft, which stores an elastic force when the sheet is pulled out, and rotates the sheet take-up shaft with the restoring force to take up the sheet. In the sheet winding device,
A mounting shaft that is mounted inside the sheet take-up shaft and rotatably supports the sheet take-up shaft is integrally formed on the surface opposed to the left and right supports, and one end of the sheet take-up shaft is rotatable. One end of the coil spring is attached to the tip of one of the mounting shafts that are pivotally supported, and the other end of the coil spring is attached to the middle or other end of the sheet take-up shaft, and both ends of the sheet take-up shaft A sheet winding device characterized in that a resin-made sliding ring that slides on the mounting shaft is fixed on the inner peripheral surface of the sheet.
車両荷物室の左右両側に取り付ける樹脂製のサイドカバーと、前記サイドカバー間に回転自在に装着した中空のトノカバー巻き取り軸と、前記トノカバー巻き取り軸の外周面に一端を固定したトノカバーと、前記トノカバー巻き取り軸の中に配設したコイルばねであって、トノカバーを引き出したときに弾性力を蓄積し、その復元力でトノカバー巻き取り軸を回転させてトノカバーを巻き取るようにしたコイルばねとを備えるトノカバー装置において、
前記左右のサイドカバーが対抗する面に、トノカバー巻き取り軸の内部に装着してトノカバー巻き取り軸を回転自在に軸支する装着軸を一体成形するとともに、トノカバー巻き取り軸の一端部を回転自在に軸支する一方の装着軸の先端に前記コイルばねの一端を取り付け、トノカバー巻き取り軸の中間部又は他端部に、コイルばねの他端を取り付け、かつ、前記トノカバー巻き取り軸の両端部の内周面に、前記装着軸に対して摺動する樹脂製の摺動リングを固設したことを特徴とするトノカバー装置。
Resin side covers attached to the left and right sides of the vehicle luggage compartment, a hollow tonneau cover winding shaft rotatably mounted between the side covers, a tonneau cover having one end fixed to the outer peripheral surface of the tonneau cover winding shaft, A coil spring disposed in the tonneau cover take-up shaft, which stores elastic force when the tonneau cover is pulled out, and rotates the tonneau cover take-up shaft with its restoring force to wind up the tonneau cover; In a tonneau cover device comprising:
A mounting shaft that rotatably mounts the tonneau cover take-up shaft is integrally formed on the surface facing the left and right side covers, and the one end of the tonneau cover take-up shaft is rotatable. One end of the coil spring is attached to the tip of one mounting shaft that is pivotally supported on the shaft, the other end of the coil spring is attached to the middle or other end of the tonneau cover winding shaft, and both ends of the tonneau cover winding shaft A tonneau cover device characterized in that a resin-made sliding ring that slides with respect to the mounting shaft is fixed on the inner peripheral surface of the tonneau cover device.
JP2000370387A 2000-12-05 2000-12-05 Sheet winding device and tonneau cover device Expired - Lifetime JP3922879B2 (en)

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