JP3142442B2 - Device for supporting cushion pad in vehicle seat - Google Patents
Device for supporting cushion pad in vehicle seatInfo
- Publication number
- JP3142442B2 JP3142442B2 JP06158426A JP15842694A JP3142442B2 JP 3142442 B2 JP3142442 B2 JP 3142442B2 JP 06158426 A JP06158426 A JP 06158426A JP 15842694 A JP15842694 A JP 15842694A JP 3142442 B2 JP3142442 B2 JP 3142442B2
- Authority
- JP
- Japan
- Prior art keywords
- spring
- frame
- seat
- cushion
- cushion pad
- 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.)
- Expired - Fee Related
Links
Landscapes
- Seats For Vehicles (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、薄型のクッションパッ
ドを使用しても快適な使用感を得ることができる車輛用
シートにおけるクッションパッドの支持装置に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for supporting a cushion pad in a vehicle seat which can provide a comfortable feeling even when a thin cushion pad is used.
【０００２】[0002]
【従来の技術】クッションパッドの弾性不足を補うため
に面スプリング状の座受ばね材をクッションフレームの
開口部に配置してこれをテンションスプリングをもって
クッションフレームに弾発支持させた車輛用シートにお
けるクッションパッドの支持装置は、実開平２ー３１５
３１号公報や、実開昭６２ー４２４５３号公報などに見
られるように従来より知られている。2. Description of the Related Art To compensate for the lack of elasticity of a cushion pad, a seat spring material in the form of a surface spring is disposed in an opening of a cushion frame, and this is resiliently supported by a cushion frame with a tension spring. The pad support device is actually open flat 2-315.
No. 31, JP-A-62-42453, and the like.
【０００３】しかしながら、従来のこのこの種車輛用シ
ートにおけるクッションパッドの支持装置は、座受ばね
材をその両側部分において多数のテンションスプリング
によりクッションフレームに弾発支持させてあり、しか
も、座受ばね材は複数本のばね鋼線を角形枠材の両側杆
部間に左右方向に張設したものであるため、静的な座り
心地の面では何ら問題がないものの、動的な座り心地す
なわち車輛の走行振動からくる荷重変動や不規則な人体
の重心移動に対しては快適な乗り心地が得られないもの
であった。しかも、着座時には角形枠材内に左右方向に
張設した全てのばね鋼線に均一な荷重がかからないため
に面圧が高くなり、このため良好なクッション性を得る
ためには厚めのクッションパッドを使用せざるを得ない
ものであった。さらに、座受ばね材をクッションフレー
ムに弾発支持させるためのテンションスプリングを多数
必要とし、コスト高となるなどの問題もあるものであっ
た。However, in the conventional cushion pad supporting device of this kind of vehicle seat, a seat spring material is resiliently supported on a cushion frame by a number of tension springs on both sides thereof. The material is formed by extending a plurality of spring steel wires in the left-right direction between the rods on both sides of the rectangular frame material, so that there is no problem in terms of static sitting comfort, but dynamic sitting comfort, that is, vehicle A comfortable ride cannot be obtained against load fluctuations caused by the running vibration of the vehicle or irregular movement of the center of gravity of the human body. In addition, when seated, all spring steel wires stretched in the rectangular frame material in the left and right direction do not receive a uniform load, so the surface pressure increases.Thus, to obtain good cushioning properties, use a thick cushion pad. It had to be used. Further, there is a problem that a large number of tension springs are required to resiliently support the seat receiving spring material on the cushion frame, which increases the cost.
【０００４】[0004]
【発明が解決しようとする課題】本発明が解決しようと
するところは、上記のような従来の問題点を解決して、
クッションフレームに座受ばね材を僅かなテンションス
プリングにより弾発支持させることができてコストを低
くできるうえ、座面の面圧を均等に発生させて車輛の走
行振動や不規則な動きによる荷重変動や重心位置の移動
に対しても安定し、静的な座り心地の面で問題がないこ
とは勿論のこと、動的な座り心地も良好であり、しか
も、薄型のクッションパッドを使用しても使用感がよい
車輛用シートにおけるクッションパッドの支持装置を提
供しようとすることは、本出願人が開発し先に特願平６
ー１１８４３０号として出願した車輛用シートにおける
クッションパッドの支持装置と同様であるが、本発明は
悪路走行時などに大きな荷重がかかった場合を考慮して
先願発明よりもさらに動的な座り心地をよりよくするこ
とを主目的とするものであり、さらに、ペダル操作時に
おける着座者の上肢部に対するクッション性や、カーブ
走行時における側部ホールド性をも付加しようとするこ
とにある。SUMMARY OF THE INVENTION The present invention seeks to solve the above-mentioned conventional problems.
The cushion frame can be resiliently supported by a small tension spring to support the seat spring material, reducing costs. In addition, load fluctuation due to running vibration and irregular movement of the vehicle by uniformly generating surface pressure on the seat surface. It is stable against movement of the center of gravity and the position of the center of gravity, and of course there is no problem in terms of static sitting comfort, dynamic sitting comfort is good, and even if a thin cushion pad is used An attempt to provide a cushion pad support device for a vehicle seat having a good feeling of use has been developed by the present applicant and has been previously disclosed in Japanese Patent Application No. Hei 6 (1994) -64139.
Although the present invention is similar to the cushion pad support device of the vehicle seat filed as Japanese Patent Application No. 118430, the present invention takes into consideration the case where a large load is applied when traveling on a rough road or the like, and the seating is more dynamic than the prior application. A main object of the present invention is to improve comfort, and it is another object of the present invention to add a cushioning property to an upper limb of a seated person at the time of pedal operation and a side hold property at the time of curve running.
【０００５】[0005]
【課題を解決するための手段】上記の課題を解決するた
めになされた本発明の車輛用シートにおけるクッション
パッドの支持装置は、所要の剛性と弾性とを兼ね備えた
角形枠材の内部に複数本のばね鋼線を前後方向に張設し
た面スプリングが形成されている座受ばね材をクッショ
ンフレームの開口部に配置し、この座受ばね材を、その
前杆部に一端が回動自在に取付けられ他端はクッション
フレームの前端に回動自在に取付けられて上下方向への
回動ができる連繋部材と、座受ばね材の後杆部とクッシ
ョンフレームの後端に両端が連結されて常時座受ばね材
を後向きに牽引する複数のテンションスプリングとによ
りクッションフレームに弾発支持させたことを特徴とす
るものである。SUMMARY OF THE INVENTION A cushion pad supporting device for a vehicle seat according to the present invention, which has been made to solve the above-mentioned problems, has a plurality of cushion pads provided inside a rectangular frame member having both required rigidity and elasticity. A seat spring member having a surface spring formed by stretching the spring steel wire in the front-rear direction is disposed in the opening of the cushion frame, and the seat spring member is rotatably mounted at one end on its front rod portion. The other end is connected to the front end of the cushion frame so as to be rotatable and can be rotated in the vertical direction, and both ends are connected to the rear rod portion of the seat spring and the rear end of the cushion frame. The seat spring member is elastically supported on the cushion frame by a plurality of tension springs for pulling the seat spring member backward.
【０００６】[0006]
【作用】このような車輛用シートにおけるクッションパ
ッドの支持装置は、クッションフレームを車体に取付け
て面スプリング上にクッションパッドを載装支持させた
状態として使用すれば、クッションパッドの弾性不足を
座受ばね材の面スプリングが補って走行振動を緩衝する
ことは従来のこの種車輛用シートにおけるクッションパ
ッドの支持装置と同様であるが、面スプリングは所要の
剛性と弾性とを兼ね備えた角形枠材に前後方向に延びる
ばね鋼線を配列して形成したものであり、しかも、座受
ばね材のクッションフレームへの取付けは、面スプリン
グの角形枠材の前杆部をクッションフレームに上下方向
への回動が可能な連繋部材により連結するとともに、後
杆部とクッションフレームの後端に両端が連結されて常
時座受ばね材を後向きに牽引する複数のテンションスプ
リングとによりクッションフレームに弾発支持させもの
としているので、クッションパッドに着座すると、その
荷重は前後方向に延びる全てのばね鋼線に均等にかかる
こととなって面圧が均等化されるうえに、角形枠材は連
繋部材を支点として後部が下向きに回動され、このとき
所要の弾性を備えた両側杆部自身の弾性と、下降する後
杆部をクッションフレームに弾発支持させているテンシ
ョンスプリングの弾性とにより優れたクッション効果を
発揮する。特に、座受ばね材の前端はクッションフレー
ムとの連結を直接でなく、前杆部に一端が回動自在に取
付けられ他端はクッションフレームの前端に回動自在に
取付けられて上下方向への回動ができる連繋部材を介す
る連結としたことにより、悪路走行時など大きな荷重が
かかったとしても、連繋部材が角形枠材のばね力では確
保できない上下のストロークを確保し角形枠材のばね力
が有効に作用するので底着き感がなく、動的な座り心地
が特に良好なものとなる。The cushion pad support device for a vehicle seat as described above can be used in a state where the cushion frame is mounted on the vehicle body and the cushion pad is mounted and supported on a surface spring. Although the surface spring of the spring material supplements and cushions the traveling vibration, it is the same as the conventional cushion pad support device in this kind of vehicle seat, but the surface spring is a rectangular frame material having the required rigidity and elasticity. A spring steel wire extending in the front-rear direction is arranged and formed. In addition, the seat spring material is attached to the cushion frame by turning the front rod portion of the square frame material of the surface spring vertically to the cushion frame. The rear link and the rear end of the cushion frame are connected at both ends by a linking member that can move. The cushion frame is resiliently supported by a plurality of tension springs that are pulled when the cushion pad is seated on the cushion pad. In addition to this, the rectangular frame material is pivoted downward at the rear part with the connecting member as a fulcrum, and at this time, the elasticity of both side rod parts having the required elasticity and the descending rear rod part to the cushion frame The elasticity of the tension spring, which is elastically supported, provides an excellent cushioning effect. In particular, the front end of the seat receiving spring material is not directly connected to the cushion frame, but one end is rotatably mounted on the front rod portion, and the other end is rotatably mounted on the front end of the cushion frame so that the front end can be vertically moved. Even when a heavy load is applied, such as when traveling on a rough road, the connecting member secures a vertical stroke that cannot be secured by the spring force of the square frame member, and the spring of the square frame member can be secured even when a large load is applied, such as when traveling on a rough road. Since the force acts effectively, there is no feeling of bottoming out, and dynamic sitting comfort is particularly good.
【０００７】[0007]
【実施例】次に、本発明を図示の実施例について詳細に
説明する。図中１は浅いバケット状のクッションフレー
ム、２はこのクッションフレーム１の上端の開口部１１
の内部に配置されて面スプリング２０がクッションフレ
ーム１に後記する連繋部材５０と複数のテンションスプ
リング４とによって弾発支持されている座受ばね材であ
る。この座受ばね材２は、直径が２mm〜８mmの範囲で選
ばれた断面円形の硬鋼線その他所要の剛性と弾性とを兼
ね備えた太線材により作られた前杆部２２と後杆部２３
と側杆部２４とよりなる角形枠材２１の前記前杆部２２
と後杆部２３間に複数本好ましくは５０〜６０mm間隔で
５〜８本のばね鋼線２５を張設して面スプリング２０と
し、この面スプリング２０の前部に門形の前部枠ばね３
０をその頂杆部３１が面スプリング２０の前杆部２２よ
りも前方で且つ高位置にあるよう両脚部３２、３２の脚
端をもって角形枠材２１の両側杆部２４、２４より斜上
向きに連設するとともに、面スプリング２０の両側に斜
上向きの側部枠ばね４０、４０をその前端が前部枠ばね
３０の頂杆部３１の両端に続かせたものとして角形枠材
２１の両側に連設したものである。２７は各ばね鋼線２
５の中間部を必要に応じて連繋する紙芯などの横方向の
芯線２７であって、この芯線２７のスペーサ効果により
長期間使用しても各ばね鋼線２５、２５の相互間隔が常
に一定に保持されるようにしてある。BRIEF DESCRIPTION OF THE DRAWINGS FIG. In the figure, 1 is a shallow bucket-shaped cushion frame, and 2 is an opening 11 at the upper end of the cushion frame 1.
The spring 20 is a seat spring member which is disposed inside the cushion frame 1 and the surface spring 20 is elastically supported by a connecting member 50 and a plurality of tension springs 4 to be described later on the cushion frame 1. The front and rear rod portions 22 and 23 are made of a hard steel wire having a circular cross section having a diameter selected in a range of 2 mm to 8 mm or a thick wire having both required rigidity and elasticity.
The front rod portion 22 of the square frame member 21 composed of
A plurality of, preferably five to eight, spring steel wires 25 are stretched between the rear rod portions 23 at intervals of 50 to 60 mm to form a surface spring 20, and a gate-shaped front frame spring is provided at the front of the surface spring 20. 3
0 with the leg ends of both legs 32, 32 obliquely upward from the side rods 24, 24 of the rectangular frame 21 so that the top rod 31 is located forward and higher than the front rod 22 of the surface spring 20. The side frame springs 40, 40, which are obliquely upwardly directed on both sides of the surface spring 20, have their front ends connected to both ends of the top rod portion 31 of the front frame spring 30. It is a continuous installation. 27 is each spring steel wire 2
5 is a horizontal core wire 27 such as a paper core connecting the intermediate portion as necessary. Even when the core wire 27 is used for a long time, the interval between the spring steel wires 25 is always constant. To be held.
【０００８】なお、座受ばね材２の角形枠材２１と前部
枠ばね３０と側部枠ばね４０、４０はいずれも硬鋼線そ
の他所要の剛性と弾性とを兼ね備えた太線材よりなるも
のであって、太線材からこれら角形枠材２１と前部枠ば
ね３０と側部枠ばね４０、４０の各部分を折曲形成する
場合、それぞれを各別の太線材から折曲形成して任意の
位置で溶接などの手段で一体化しても、角形枠材２１と
前部枠ばね３０と側部枠ばね４０、４０のうちのいくつ
かを同じ太線材から折曲形成し、これらを組み合わせて
任意の位置で一体化するようにしてもよい。また、角形
枠材２１の前杆部２２と後杆部２３と側杆部２４はそれ
ぞれ線径が異なるものとしてもよい。さらに、前記実施
例においては角形枠杆２１、前部枠ばね３０、側部枠ば
ね４０をいずれも断面円形の硬鋼線よりなるものとして
いるが、平鋼線や断面矩形のパイプを折り曲げたものな
ど角形枠杆２１の素材は所要の剛性と弾性があるもので
あればよい。Each of the square frame member 21, the front frame spring 30, and the side frame springs 40, 40 of the seat spring member 2 is made of a hard steel wire or a thick wire having both required rigidity and elasticity. When each of the rectangular frame member 21, the front frame spring 30, and the side frame springs 40, 40 is bent from a thick wire, each portion is formed by bending each of the thick wire members. Even if they are integrated by means such as welding at the position, some of the square frame material 21, the front frame spring 30, and the side frame springs 40, 40 are bent from the same thick wire material, and these are combined. They may be integrated at any position. Further, the front rod portion 22, the rear rod portion 23, and the side rod portion 24 of the rectangular frame member 21 may have different wire diameters. Further, in the above embodiment, the square frame rod 21, the front frame spring 30, and the side frame spring 40 are all made of hard steel wire having a circular cross section. However, a flat steel wire or a pipe having a rectangular cross section is bent. The material of the rectangular frame rod 21 such as a material may be a material having required rigidity and elasticity.
【０００９】そして、この座受ばね材２はクッションフ
レーム１の上端の開口部１１内に配置されて角形枠材２
１の前杆部２２をクッションフレーム１の開口前縁に連
繋部材５０を介して保持させるとともに、後杆部２３を
クッションフレーム１の開口前縁に適当数のテンション
スプリング４をもって弾発支持させてある。連繋部材５
０は座受ばね材２の前杆部２２に一端が回動自在に取付
けられ他端はクッションフレーム１の前端に回動自在に
取付けられて上下方向への回動ができるものであればよ
く、図１〜図３に示す実施例では連繋部材５０を細長角
枠とし、その一方の直線状軸部５１をクッションフレー
ム１の開口前縁に切り起こした爪１２を利用して回動自
在に取付けるとともに、他方の直線状軸部５２を角形枠
材２１の前杆部２２に抱持部材５３をもって回動自在に
取付けて連繋部材５０が一方の直線状軸部５１をもって
上下回動可能で且つ角形枠材２１の前杆部２２が抱持部
材５８との連結部分において回動自在な構成としてある
が、図５に示す他の実施例のように連繋部材５０を複数
枚の帯板とし、クッションフレーム１の開口前縁に切り
起こした爪１２に回動自在に軸支させた直線状の軸５４
に所要間隔をおいて帯板の各一端を溶接などの手段で連
結するとともに、この帯板の他端をそれぞれ軸受部５５
に形成してこの軸受部５５に角形枠材２１の前杆部２２
を回動自在に軸支させるようにしても、或いは図６に示
す他の実施例のように連繋部材５０をクランク軸として
クッションフレーム１の開口前縁に切り起こした爪１２
に一方の連結軸部５６を回動自在に軸支させるとともに
他方の連結軸部５７を角形枠材２１の前杆部２２に対し
て抱持部材５８により回動自在に軸支させるようにして
もよい。なお、テンションスプリング４の数は通常は左
右にそれぞれ１個宛計２個とするが、左右にそれぞれ１
個宛設ける以外に座面をチューニングするため中央にも
１個設けるなど３個以上としてもよく、また、各テンシ
ョンスプリング４のばね強度に変化をもたせるようにし
てもよい。The seat spring member 2 is disposed in the opening 11 at the upper end of the cushion frame 1 and
The front rod portion 22 is held at the front edge of the opening of the cushion frame 1 via the connecting member 50, and the rear bar portion 23 is elastically supported at the front edge of the opening of the cushion frame 1 by a suitable number of tension springs 4. is there. Linking member 5
Reference numeral 0 denotes one which is rotatably mounted at one end to the front rod portion 22 of the seat receiving spring member 2 and rotatably mounted at the other end to the front end of the cushion frame 1 so as to be rotatable in the vertical direction. In the embodiment shown in FIGS. 1 to 3, the connecting member 50 is an elongated rectangular frame, and one of the linear shaft portions 51 is rotatable using the claw 12 cut and raised at the opening front edge of the cushion frame 1. At the same time, the other linear shaft portion 52 is rotatably mounted on the front rod portion 22 of the rectangular frame member 21 with the holding member 53 so that the connecting member 50 can be vertically rotated with one linear shaft portion 51 and Although the front rod portion 22 of the square frame member 21 is configured to be rotatable at a connection portion with the holding member 58, as in the other embodiment shown in FIG. To the nail 12 cut and raised at the opening front edge of the cushion frame 1 Linear axis 54 movably allowed to axially supported
At one time interval, each end of the strip is connected by means of welding or the like, and the other end of the strip is connected to the bearing 55
And the front rod portion 22 of the square frame member 21 is formed on the bearing portion 55.
6 can be rotatably supported, or as in another embodiment shown in FIG. 6, the pawl 12 cut and raised at the opening front edge of the cushion frame 1 using the connecting member 50 as a crankshaft.
So that one connecting shaft portion 56 is rotatably supported and the other connecting shaft portion 57 is rotatably supported by the holding member 58 with respect to the front rod portion 22 of the square frame member 21. Is also good. The number of the tension springs 4 is usually one for each of the right and left sides, but two for each.
In addition to the individual springs, three or more springs may be provided, such as one at the center for tuning the seating surface, and the spring strength of each tension spring 4 may be varied.
【００１０】このように構成されたものは、クッション
フレーム１をもって車体に取付けておき、座受ばね材２
の面スプリング２０上にクッションパッドをその前端が
前部枠ばね３０に支えられるとともに両側が側部枠ばね
４０、４０の内側に位置するように載装支持させてこれ
をシートカバーで覆って使用すれば、座受ばね材２は角
形枠材２１の前杆部２２と後杆部２３間に複数本のばね
鋼線２５を張設した面スプリング２０を有していてこれ
にクッションパッドを支持させているから、着座時にお
いて乗員の臀部は前後方向に並列された全てのばね鋼線
２５の後方位置に支持されて荷重は全てのばね鋼線２５
に直交した状態でかかり、その荷重は複数のばね鋼線２
５に分散されて各ばね鋼線２５に伝達された力は前杆部
２２と後杆部２３に伝達される。そして、この前杆部２
２と後杆部２３に伝達された力は、前記したように角形
枠材２１の前杆部２２が連繋部材５０を介してクッショ
ンフレーム１の開口前縁に対し上下方向に回動可能に保
持されており、また、角形枠材２１の後杆部２３はクッ
ションフレーム１にテンションスプリング４をもって弾
発支持させてあることにより、面圧が均等化された状態
で面スプリング２０にかかり、ばね鋼線２５の弾性と、
角形枠材２１の両側杆部２４、２４自身の弾性と、テン
ションスプリング４の弾発力で緩衝することとなり、こ
のため、主として面スプリング２０上に載装されるクッ
ションパッドを極薄型としても底づき感がなく快適な乗
り心地を得ることができる。[0010] With the above structure, the cushion frame 1 is attached to the vehicle body, and the seat spring member 2 is provided.
The cushion pad is mounted and supported on the surface spring 20 such that the front end thereof is supported by the front frame spring 30 and both sides are located inside the side frame springs 40, 40, and this is used by covering with a seat cover. In this case, the seat spring member 2 has a surface spring 20 in which a plurality of spring steel wires 25 are stretched between the front rod portion 22 and the rear rod portion 23 of the square frame member 21 to support the cushion pad. Therefore, when sitting, the buttocks of the occupant are supported at the rear positions of all the spring steel wires 25 arranged in the front-rear direction, and the load is applied to all the spring steel wires 25.
, And the load is applied to a plurality of spring steel wires 2
5 and transmitted to each spring steel wire 25 is transmitted to the front rod portion 22 and the rear rod portion 23. And this front rod part 2
2 and the force transmitted to the rear rod portion 23 holds the front rod portion 22 of the rectangular frame member 21 rotatably in the vertical direction with respect to the front edge of the opening of the cushion frame 1 via the connecting member 50 as described above. Further, the rear rod portion 23 of the rectangular frame member 21 is resiliently supported by the cushion frame 1 with the tension spring 4 so that the surface pressure is applied to the surface spring 20 in a state where the surface pressure is equalized. The elasticity of the line 25,
The elasticity of the rods 24, 24 on both sides of the rectangular frame member 21 and the elastic force of the tension spring 4 cause the cushioning. A comfortable ride can be obtained without a feeling of stiffness.
【００１１】すなわち、着座時には図２に示すように各
ばね鋼線２５は下方へ彎曲した状態となって所定の弾性
を発揮するが、最大荷重となったときは後杆部２３がテ
ンションスプリング４の作用と相俟って斜め前方に弓状
に撓む。このとき、両側杆部２４、２４は突っ張って後
杆部２３が過度に弓状に撓むのを抑える働きをすること
となり、このため、座面は安定性のよいお碗状に形成さ
れる。そして、この着座状態で走行すると走行振動が発
生して乗員の荷重が上下・前後・左右に変化した動きと
なるが、上下の動きが面スプリング２０に加えられる
と、前杆部２２がクッションフレーム１の開口前縁に対
し連繋部材５０を介して上下方向に回動可能に保持され
ているため、該連繋部材５０が通常の着座時においては
図７に２点鎖線で示したようにテンションスプリング４
とバランスをとった状態となり、更に最大荷重がかかっ
た時には１点鎖線で示したように連繋部材５０が爪１２
を中心に前方向へ回転してテンションスプリング４とバ
ランスをとりつつ荷重を緩和することとなるので如何な
る場合にも常に快適なクッション効果が得られることと
なる。また、乗員の重心が左右に移動するときに座受ば
ね材２に対して力が加えられても、側杆部２４、２４が
前記したように突っ張って座面を補正するように働くの
で、座受ばね材２には常に正規位置へ戻ろうとする力が
働くこととなって極めて安定した座面姿勢が得られるこ
ととなる。さらに、乗員の重心が前後に移動するとき
も、前杆部２２がクッションフレーム１の開口前縁に対
し連繋部材５０をもって上下方向の回動ができるように
保持させてあることにより前後への動きが連繋部材５０
の動きの範囲に規制されるので、座面の変化は少なく快
適な乗り心地を得ることができるのである。That is, when seated, as shown in FIG. 2, each spring steel wire 25 is bent downward to exhibit a predetermined elasticity. In combination with the action of, it bends obliquely forward in a bow shape. At this time, the both-side rod portions 24, 24 work to prevent the rear rod portion 23 from bending excessively in an arcuate shape, so that the seating surface is formed in a bowl shape with good stability. . When traveling in this seated state, traveling vibration is generated and the load of the occupant changes vertically, front and rear, and left and right. However, when the vertical movement is applied to the surface spring 20, the front rod portion 22 is moved to the cushion frame. 1 is held rotatably in the up-down direction via the connecting member 50 with respect to the front edge of the opening of the first opening, and when the connecting member 50 is normally seated, as shown by a two-dot chain line in FIG. 4
When the maximum load is further applied, the connecting member 50 is connected to the claw 12 as shown by the one-dot chain line.
, The load is relieved while maintaining a balance with the tension spring 4 so that a comfortable cushion effect is always obtained in any case. Further, even when a force is applied to the seat spring member 2 when the occupant's center of gravity moves left and right, the side rods 24, 24 work as described above to work to correct the seating surface. The force for returning to the normal position always acts on the seat receiving spring member 2, so that an extremely stable seating posture can be obtained. Further, even when the occupant's center of gravity moves back and forth, the front rod portion 22 is held by the connecting member 50 so as to be able to rotate in the vertical direction with the front edge of the opening of the cushion frame 1 so that the front and rear portions can move forward and backward. Is the connecting member 50
Therefore, a comfortable ride can be obtained with little change in the seating surface.
【００１２】このように角形枠材２１内に複数本のばね
鋼線２５を前後方向に張設した面スプリング２０はばね
鋼線を左右方向に張設した場合とは異なり全てのばね鋼
線２５に荷重が分散されるので面圧が均等化され、この
ため、面スプリング２０上に載装されるクッションパッ
ドを薄肉化しても充分なクッション効果を得ることがで
きることとなり、しかも、座受ばね材２はその角形枠材
２１の前杆部２２に一端が回動自在に取付けられ他端は
クッションフレーム１の前端に対して上下方向への回動
ができるように取付けられた連繋部材５０と、座受ばね
材２の後杆部２３とクッションフレーム１の後端に両端
が連結されて常時座受ばね材２を後向きに牽引する複数
のテンションスプリング４とによりクッションフレーム
１に弾発支持させてあることにより前後・左右への移動
が規制され、走行時のダイナミックな変動に対する座面
の変化を少なくなり快適な乗り心地を得ることができ、
さらに、テンションスプリング４による支持を角形枠材
２１の後杆部２３のみにおいて行ったことによりテンシ
ョンスプリング４の使用個数が少なくなるので、その分
部品コストを低くできるばかりか取付手数も簡略化でき
てコストダウン上のメリットも大きいものがある。As described above, the surface spring 20 in which a plurality of spring steel wires 25 are stretched in the front-rear direction in the rectangular frame member 21 is different from the case where the spring steel wires are stretched in the left-right direction. Since the load is distributed to the surface spring, the surface pressure is equalized, and therefore, even if the cushion pad mounted on the surface spring 20 is reduced in thickness, a sufficient cushioning effect can be obtained. 2 is a linking member 50 having one end rotatably mounted on the front rod portion 22 of the rectangular frame member 21 and the other end rotatably mounted on the front end of the cushion frame 1 so as to be vertically rotatable; Both ends are connected to the rear rod portion 23 of the seat spring member 2 and the rear end of the cushion frame 1, and the cushion frame 1 is elastically supported by a plurality of tension springs 4 that constantly pull the seat spring member 2 backward. Move back and forth, left and right is restricted by the presence of, it is possible to obtain a comfortable ride less the change of the seat surface relative to the dynamic variations during running,
Further, since the support by the tension spring 4 is performed only on the rear rod portion 23 of the square frame member 21, the number of the used tension springs 4 is reduced, so that not only the parts cost can be reduced but also the number of mounting steps can be simplified. There is also a great advantage in cost reduction.
【００１３】さらに、座受ばね材２の前端とクッション
フレーム１との連結を直接固定または枢着するのではな
く、前杆部２２に一端が回動自在に取付けられ他端はク
ッションフレーム１の前端に回動自在に取付けられて上
下方向への回動ができる連繋部材５０を介する連結とし
たことにより、悪路走行時などに大きな荷重がかかった
場合でも、連繋部材５０が角形枠材２１のばね力では確
保できない上下のストロークを確保でき、このため、角
形枠材２１のばね力が有効に作用するので底着き感がな
くて動的な座り心地が特に良好なものとなる。Further, instead of directly fixing or pivoting the connection between the front end of the seat spring member 2 and the cushion frame 1, one end is rotatably attached to the front rod portion 22 and the other end of the cushion frame 1 is provided. The connection through the connecting member 50 that is rotatably attached to the front end and that can rotate in the vertical direction allows the connecting member 50 to be connected to the square frame member 21 even when a large load is applied when traveling on a rough road or the like. The upper and lower strokes that cannot be secured by the spring force described above can be secured. Therefore, the spring force of the square frame member 21 effectively acts, so that there is no feeling of bottoming and dynamic sitting comfort is particularly good.
【００１４】しかも、面スプリング２０に載装されてい
るクッションパッドの前端を面スプリング２０の前部に
頂杆部３１が角形枠材２１の前杆部２２よりも高く位置
されるように延設してある門形の前部枠ばね３０の前記
頂杆部３１に支持させた実施例のような構成としたもの
は、運転者が着座してペダル操作する時にクッションパ
ッドの前端が上肢部により押し下げられてもこの前部枠
ばね３０の復元力により適度なクッション性を発揮する
こととなりペダル操作時に受ける違和感が解消されるも
のとなる。Moreover, the front end of the cushion pad mounted on the surface spring 20 is extended to the front portion of the surface spring 20 so that the top rod portion 31 is positioned higher than the front rod portion 22 of the rectangular frame member 21. When the driver sits down and operates the pedal, the front end of the cushion pad is moved by the upper limb when the driver sits down and operates the pedal. Even if pushed down, the restoring force of the front frame spring 30 exerts an appropriate cushioning property, and the discomfort experienced when operating the pedal is eliminated.
【００１５】また、同じく実施例のように面スプリング
２０の両側に斜上向きの側部枠ばね４０、４０を設けた
ものは、この側部枠ばね４０、４０が着座者をクッショ
ンパッドを介して両側から支えることとなり、従って、
カーブ走行時における側部ホールド性を確保できるもの
となるもので、特に、この側部枠ばね４０、４０の前端
を前部枠ばね３０に続かせておけば、前部枠ばね３０の
ばね力が側部枠ばね４０、４０により増強されるととも
に、側部枠ばね４０、４０のばね力も前部枠ばね３０に
より増強されるのでより好ましいものとなる。In the same manner as in the embodiment, the side frame springs 40, 40 are provided on both sides of the plane spring 20 in a diagonally upward direction. The side frame springs 40, 40 allow the occupant to pass through a cushion pad. Will be supported from both sides,
It is possible to secure the side holding property when traveling on a curve. In particular, if the front ends of the side frame springs 40, 40 are connected to the front frame spring 30, the spring force of the front frame spring 30 is increased. Is strengthened by the side frame springs 40, 40, and the spring force of the side frame springs 40, 40 is also enhanced by the front frame spring 30, which is more preferable.
【００１６】[0016]
【発明の効果】本発明は以上の説明からも明らかなよう
に、クッションフレームの開口部にばね鋼線が前後方向
に張設された面スプリングを備えた座受ばね材を配置し
てクッションフレームに対してその前端を上下方向への
回動ができる連繋部材を介して保持させるとともに後端
をテンションスプリングを介して弾発支持させたことに
より、座面の面圧を均等に発生させ薄型のクッションパ
ッドを使用しても使用感のよいものとすることができる
うえに、クッションフレームに面スプリングを僅かなテ
ンションスプリングにより弾発支持させることができる
ので安価に提供でき、特に、座受ばね材の前端とクッシ
ョンフレームとの連結を単なる固定や枢着ではなく相互
間に回動自在な連繋部材を介在させたことにより、悪路
走行時など大きな荷重がかかったとしても、連繋部材が
角形枠材のばね力では確保できない上下のストロークを
確保し角形枠材のばね力が有効に作用するので底着き感
がなく、動的な座り心地が特に良好なものとなる点は本
発明の大きな特長である。As is apparent from the above description, the present invention provides a cushion frame in which a seat spring material having a surface spring in which a spring steel wire is stretched in the front-rear direction is disposed in an opening of a cushion frame. The front end is held via a linking member that can rotate in the vertical direction, and the rear end is resiliently supported via a tension spring. Even if a cushion pad is used, a good feeling can be obtained, and the cushion frame can be elastically supported by a slight tension spring so that the cushion spring can be provided at a low cost. The connection between the front end and the cushion frame is not simply fixed or pivoted, but a rotatable connecting member is interposed between Even if heavy, the connecting member secures a vertical stroke that cannot be secured by the spring force of the square frame material, and the spring force of the square frame material works effectively, so there is no feeling of bottoming, especially dynamic sitting comfort A good point is a great feature of the present invention.
【００１７】また、面スプリングの前部に門形の前部枠
ばねをその頂杆部が角形枠材の前杆部よりも高く位置さ
れるように延設したものは、ペダル操作時においてクッ
ションパッドの前端が上肢部により押し下げられてもこ
の前部枠ばねが適度なクッション性を発揮してペダル操
作時に受ける違和感を解消でき、さらに、両側に斜上向
きの側部枠ばねを設けたものは、この側部枠ばねが着座
者をクッションパッドを介して両側から支えることとな
るのでカーブ走行時における側部ホールド性も確保でき
るなど、車輛の走行振動や不規則な動きによる荷重変動
や重心位置の移動に対しても安定するものとなる。よっ
て本発明は従来の問題点を一掃し、静的な座り心地の面
で問題がないことは勿論のこと動的な座り心地も良好で
あり、しかも、薄型のクッションパッドを使用しても使
用感がよい車輛用シートにおけるクッションパッドの支
持装置として、産業の発展に寄与するところは極めて大
である。[0017] Further, a gate-shaped front frame spring is provided at the front of the surface spring so that its top rod is positioned higher than the front rod of the square frame material. Even if the front end of the pad is pressed down by the upper limb, this front frame spring exerts an appropriate cushioning property and can eliminate the uncomfortable feeling received when operating the pedal. Since the side frame springs support the occupant from both sides via cushion pads, it is possible to secure the side holdability when traveling on curves, such as load fluctuations and center of gravity due to vehicle vibration and irregular movement. It becomes stable against the movement of. Therefore, the present invention eliminates the problems of the prior art, has no problem in terms of static sitting comfort, has good dynamic sitting comfort, and can be used even when a thin cushion pad is used. There is a great deal of contribution to industrial development as a cushion pad support device for a vehicle seat with a good feeling.
【図１】本発明の実施例を示す斜視図である。FIG. 1 is a perspective view showing an embodiment of the present invention.
【図２】本発明の実施例における座受ばねの着座前と着
座後の状態を示す側面図である。FIG. 2 is a side view showing a state before and after seating of a seat receiving spring according to the embodiment of the present invention.
【図３】本発明のテンションスプリングが取付けられた
座受ばね材の他の実施例を示す斜視図である。FIG. 3 is a perspective view showing another embodiment of the seat receiving spring member to which the tension spring of the present invention is attached.
【図４】同じく本発明のテンションスプリングが取付け
られた座受ばね材の他の実施例を示す斜視図である。FIG. 4 is a perspective view showing another embodiment of the seat spring material to which the tension spring of the present invention is attached.
【図５】本発明における連繋部材の他の実施例を示す斜
視図である。FIG. 5 is a perspective view showing another embodiment of the connecting member according to the present invention.
【図６】同じく本発明における連繋部材の他の実施例を
示す斜視図である。FIG. 6 is a perspective view showing another embodiment of the connecting member according to the present invention.
【図７】不使用時と着座時と最大荷重時における面スプ
リングと連繋部材とテンションスプリングの関係を示す
本発明の概略説明図である。FIG. 7 is a schematic explanatory view of the present invention showing the relationship between the surface spring, the connecting member, and the tension spring when not in use, when sitting, and when maximum load is applied.
１ クッションフレーム ２ 座受ばね材 11 開口部 20 面スプリング 21 角形枠材 22 前杆部 23 後杆部 24 側杆部 25 ばね鋼線 30 前部枠ばね 31 頂杆部 40 側部枠ばね 50 連繋部材 DESCRIPTION OF SYMBOLS 1 Cushion frame 2 Seat receiving spring material 11 Opening 20 Surface spring 21 Square frame material 22 Front rod part 23 Rear rod part 24 Side rod part 25 Spring steel wire 30 Front frame spring 31 Top rod part 40 Side frame spring 50 articulated Element
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 実開 昭56−36261（ＪＰ，Ｕ) 実開 昭56−36264（ＪＰ，Ｕ) 実開 昭55−152155（ＪＰ，Ｕ) 実開 平２−31533（ＪＰ，Ｕ) 実開 昭62−2649（ＪＰ，Ｕ) 特公 昭55−9203（ＪＰ，Ｂ２) (58)調査した分野(Int.Cl.7，ＤＢ名) A47C 7/02 A47C 7/14 A47C 7/28 A47C 7/32 A47C 7/34 A47C 7/35 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Showa 56-36261 (JP, U) Japanese Utility Model Showa 56-36264 (JP, U) Japanese Utility Model Showa 55-152155 (JP, U) Japanese Utility Model Hei 2 31533 (JP, U) Japanese Utility Model Showa 62-2649 (JP, U) Japanese Patent Publication No. 55-9203 (JP, B2) (58) Fields investigated (Int. Cl. 7 , DB name) A47C 7/02 A47C 7 / 14 A47C 7/28 A47C 7/32 A47C 7/34 A47C 7/35
Claims (4)
材(21)の内部に複数本のばね鋼線(25)を前後方向に張設
した面スプリング(20)が形成されている座受ばね材(2)
をクッションフレーム(1) の開口部(11)に配置し、この
座受ばね材(2) を、その前杆部(22)に一端が回動自在に
取付けられ他端はクッションフレーム(1) の前端に回動
自在に取付けられて上下方向への回動ができる連繋部材
(50)と、座受ばね材(2) の後杆部(23)とクッションフレ
ーム(1) の後端に両端が連結されて常時座受ばね材(2)
を後向きに牽引する複数のテンションスプリング(4) と
によりクッションフレーム(1) に弾発支持させたことを
特徴とする車輛用シートにおけるクッションパッドの支
持装置。1. A seat having a surface spring (20) formed by extending a plurality of spring steel wires (25) in the front-rear direction inside a rectangular frame member (21) having both required rigidity and elasticity. Spring material (2)
Is disposed in the opening (11) of the cushion frame (1), and this seat receiving spring material (2) is rotatably mounted at one end to the front rod (22) and the other end is mounted on the cushion frame (1). Linking member that is rotatably attached to the front end of the camera and that can rotate in the vertical direction
(50), and both ends are connected to the rear rod (23) of the seat spring material (2) and the rear end of the cushion frame (1) so that the seat spring material (2)
A cushion pad supporting device for a vehicle seat, characterized in that a plurality of tension springs (4) for pulling rearward are used to resiliently support the cushion frame (1).
前部に門形の前部枠ばね(30)がその頂杆部(31)を角形枠
材(21)の前杆部(22)よりも高く位置されるように延設さ
れたものである請求項１に記載の車輛用シートにおける
クッションパッドの支持装置。2. A seat spring material (2) is provided with a gate-shaped front frame spring (30) at the front part of a plane spring (20) and a top rod part (31) in front of a square frame material (21). The cushion pad support device for a vehicle seat according to claim 1, wherein the device is extended so as to be positioned higher than the rod portion (22).
両側に斜上向きの側部枠ばね(40)、(40)が設けられたも
のである請求項１または２に記載の車輛用シートにおけ
るクッションパッドの支持装置。3. The seat receiving spring member (2) is provided with side frame springs (40), (40) which are inclined obliquely upward on both sides of a surface spring (20). Cushion pad support device for vehicle seats.
ね(30)に続かせてある請求項３に記載の車輛用シートに
おけるクッションパッドの支持装置。4. The support device for a cushion pad in a vehicle seat according to claim 3, wherein the front ends of the side frame springs (40) are connected to the front frame springs (30).
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06158426A JP3142442B2 (en) | 1994-07-11 | 1994-07-11 | Device for supporting cushion pad in vehicle seat |
| US08/365,220 US5624161A (en) | 1994-05-31 | 1994-12-28 | Seat cushion pad supporting construction |
| DE19500724A DE19500724C2 (en) | 1994-05-31 | 1995-01-12 | Seat cushion cushion support structure |
| FR9500350A FR2720246B1 (en) | 1994-05-31 | 1995-01-13 | Seat cushion base support structure. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06158426A JP3142442B2 (en) | 1994-07-11 | 1994-07-11 | Device for supporting cushion pad in vehicle seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0819451A JPH0819451A (en) | 1996-01-23 |
| JP3142442B2 true JP3142442B2 (en) | 2001-03-07 |
Family
ID=15671505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06158426A Expired - Fee Related JP3142442B2 (en) | 1994-05-31 | 1994-07-11 | Device for supporting cushion pad in vehicle seat |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3142442B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19629440B4 (en) * | 1996-07-22 | 2007-02-15 | C. Rob. Hammerstein Gmbh & Co. Kg | Sitting area of a vehicle seat with an adjustable by height adjustment of the seat leading edge in its inclination seat cushion |
-
1994
- 1994-07-11 JP JP06158426A patent/JP3142442B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0819451A (en) | 1996-01-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20001205 |
|
| LAPS | Cancellation because of no payment of annual fees |