JPH0819451A - Supporting device for cushion pad of seat for vehicle - Google Patents
Supporting device for cushion pad of seat for vehicleInfo
- Publication number
- JPH0819451A JPH0819451A JP15842694A JP15842694A JPH0819451A JP H0819451 A JPH0819451 A JP H0819451A JP 15842694 A JP15842694 A JP 15842694A JP 15842694 A JP15842694 A JP 15842694A JP H0819451 A JPH0819451 A JP H0819451A
- Authority
- JP
- Japan
- Prior art keywords
- spring
- frame
- cushion
- seat
- seat receiving
- 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.)
- Granted
Links
Landscapes
- Seats For Vehicles (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
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 a cushion pad supporting device for a vehicle seat which allows a comfortable feeling to be obtained 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 A cushion for a vehicle seat in which a surface spring-like seat receiving spring material is arranged in an opening portion of a cushion frame to make up for a lack of elasticity of a cushion pad and is elastically supported by a cushion frame with a tension spring. The pad support device is the actual flat plate 2-315.
It is conventionally known as seen in Japanese Patent Publication No. 31 and Japanese Utility Model Publication No. 62-42453.
【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 in this type of vehicle seat, the seat receiving spring material is elastically supported on the cushion frame by a large number of tension springs on both sides of the seat receiving spring material. Since the spring steel wire is stretched in the left-right direction between the rods on both sides of the rectangular frame material, there is no problem in terms of static sitting comfort, but the dynamic sitting comfort, that is, the vehicle. It was not possible to obtain a comfortable ride with respect to load fluctuations caused by the running vibration of the vehicle and irregular movement of the center of gravity of the human body. Moreover, when seated, the surface pressure is high because a uniform load is not applied to all the spring steel wires stretched in the left-right direction inside the rectangular frame material, so a thick cushion pad should be used to obtain good cushioning properties. It had to be used. Furthermore, a large number of tension springs are required to elastically support the seat receiving spring member on the cushion frame, which causes a problem of high 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。The problem to be solved by the present invention is to solve the conventional problems as described above,
The seat cushion spring material can be elastically supported on the cushion frame by a slight tension spring to reduce the cost, and the surface pressure on the seat surface is evenly generated to fluctuate the load due to vehicle running vibration and irregular movement. It is stable with respect to movement of the center of gravity and the position of the center of gravity, and there is no problem in terms of static sitting comfort, and dynamic sitting comfort is also good, and even when using a thin cushion pad The present invention was developed by the applicant of the present invention to provide a support device for a cushion pad in a vehicle seat that has a good usability.
Although it is similar to the support device for the cushion pad in the vehicle seat filed as No. 118430, the present invention is more dynamic than the prior invention in consideration of the case where a large load is applied when driving on a bad road. The main purpose is to improve comfort, and also to add cushioning properties to the upper limbs of the seated person during pedal operation and side holding properties during 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。A cushion pad supporting device for a vehicle seat according to the present invention, which has been made to solve the above-mentioned problems, comprises a plurality of supporting members inside a rectangular frame member having both required rigidity and elasticity. A seat receiving spring material having a surface spring formed by stretching the spring steel wire in the front-back direction is formed in the opening of the cushion frame, and one end of the seat receiving spring material is rotatable around the front rod. The other end is attached to the front end of the cushion frame so that it can rotate in the up and down direction, and the rear rod of the seat receiving spring material and both ends of the cushion frame are connected at both ends. The seat receiving spring member is elastically supported on the cushion frame by a plurality of tension springs that pull it 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。With such a cushion pad supporting device for a vehicle seat, when the cushion frame is attached to the vehicle body and is used with the cushion pad mounted and supported on the surface spring, the cushion pad suffers from insufficient elasticity. Although the surface spring of the spring material compensates for the traveling vibration in the same way as the conventional cushion pad supporting device in this type of vehicle seat, the surface spring is a rectangular frame material that has both required rigidity and elasticity. It is formed by arranging spring steel wires extending in the front-rear direction, and moreover, the seat receiving spring material is attached to the cushion frame by rotating the front rod part of the square frame material of the surface spring vertically on the cushion frame. It is connected by a movable connecting member, and both ends are connected to the rear rod part and the rear end of the cushion frame so that the seat bearing spring member Since it is elastically supported on the cushion frame by a plurality of tension springs that are pulled, the load is evenly applied to all spring steel wires extending in the front-back direction when seated on the cushion pad. In addition, the square frame material is rotated downward at the rear part with the connecting member as a fulcrum, and at this time, the elasticity of both side rod parts themselves with the required elasticity and the descending rear rod part to the cushion frame. The elasticity of the tension spring that is elastically supported provides a superior cushioning effect. In particular, the front end of the seat receiving spring member is not directly connected to the cushion frame, but one end is rotatably attached to the front rod portion and the other end is rotatably attached to the front end of the cushion frame so as to move vertically. By connecting via a connecting member that can rotate, even if a large load is applied such as when traveling on a rough road, the connecting member ensures a vertical stroke that cannot be ensured by the spring force of the rectangular frame material, and the spring of the rectangular frame material is secured. Since the force acts effectively, there is no bottoming feeling, and the 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。The present invention will now be described in detail with reference to the illustrated embodiments. In the figure, 1 is a shallow bucket-shaped cushion frame, 2 is an opening 11 at the upper end of the cushion frame 1.
Is a seat receiving spring member that is disposed inside and is elastically supported by a connecting member 50, which will be described later, on the cushion frame 1 and a plurality of tension springs 4. This seat receiving spring member 2 is made of a hard steel wire having a circular cross section selected in a diameter range of 2 mm to 8 mm and other thick wire members having both required rigidity and elasticity, and a front rod portion 22 and a rear rod portion 23.
The front rod portion 22 of the square frame member 21 including the side rod portion 24 and the side rod portion 24.
A plurality of spring steel wires 25, preferably 5 to 8 spring steel wires 25 at intervals of 50 to 60 mm, are stretched between the rear rod portion 23 and the rear rod portion 23 to form a surface spring 20, and a front frame spring having a gate shape at the front portion of the surface spring 20. Three
0 is inclined upward from both side rod portions 24, 24 of the rectangular frame member 21 with the leg ends of both leg portions 32, 32 so that the top rod portion 31 is in front of and higher than the front rod portion 22 of the surface spring 20. The side frame springs 40, which are obliquely upwardly arranged on both sides of the surface spring 20, are connected to both sides of the rectangular frame member 21 as the front ends thereof are connected to both ends of the top rod portion 31 of the front frame spring 30. It is a series. 27 is each spring steel wire 2
5 is a horizontal core wire 27 such as a paper core that connects the middle part of 5 as necessary, and the spacing between the spring steel wires 25, 25 is always constant even if the spring steel wires 25 are used for a long time due to the spacer effect of the core wire 27. It is held in.
【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。The square frame member 21, the front frame spring 30, and the side frame springs 40, 40 of the seat receiving spring member 2 are all made of hard steel wire or other thick wire material having both required rigidity and elasticity. In the case where the rectangular frame member 21, the front frame spring 30, and the side frame springs 40, 40 are bent and formed from a thick wire, each can be bent and formed from a different thick wire. Even if they are integrated by means such as welding at the position of, some of the rectangular frame member 21, the front frame spring 30, and the side frame springs 40, 40 are bent and formed from the same thick wire, and they are combined. It 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 rectangular 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, but a flat steel wire or a pipe having a rectangular cross section is bent. The material of the rectangular frame rod 21 such as an object may be one 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 receiving spring member 2 is arranged in the opening 11 at the upper end of the cushion frame 1 to form the rectangular frame member 2.
While holding the front rod portion 22 of No. 1 to the front edge of the opening of the cushion frame 1 through the connecting member 50, the rear rod portion 23 is elastically supported on the front edge of the opening of the cushion frame 1 with an appropriate number of tension springs 4. is there. Connecting member 5
No. 0 may be any one as long as one end is rotatably attached to the front rod portion 22 of the seat receiving spring member 2 and the other end is rotatably attached to the front end of the cushion frame 1 so as to be vertically rotatable. In the embodiment shown in FIGS. 1 to 3, the connecting member 50 is an elongated rectangular frame, and one linear shaft portion 51 thereof can be freely rotated by using the claw 12 cut and raised at the front edge of the opening of the cushion frame 1. While being attached, the other linear shaft portion 52 is rotatably attached to the front rod portion 22 of the rectangular frame member 21 with the holding member 53 so that the connecting member 50 is vertically rotatable with the one linear shaft portion 51. Although the front rod portion 22 of the rectangular frame member 21 is configured to be rotatable at the connecting portion with the holding member 58, the connecting member 50 is a plurality of strip plates as in the other embodiment shown in FIG. For the claws 12 cut and raised at the front edge of the opening of the cushion frame 1. Linear axis 54 movably allowed to axially supported
Each end of the strip is connected by means such as welding at a required interval, and the other ends of the strips are respectively connected to the bearing portion 55.
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 the other embodiment shown in FIG. 6, the claw 12 cut and raised at the front edge of the opening of the cushion frame 1 using the connecting member 50 as a crank shaft.
One of the connecting shafts 56 is rotatably supported, and the other connecting shaft 57 is rotatably supported by the holding member 58 with respect to the front rod 22 of the rectangular frame member 21. Good. Note that the number of tension springs 4 is normally one each on the left and right, but a total of two, but one on each side.
In addition to providing one piece, three pieces or more may be provided such as one piece in the center for tuning the seat surface, and the spring strength of each tension spring 4 may be changed.
【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。In the structure thus constructed, the cushion frame 1 is attached to the vehicle body and the seat receiving spring member 2 is used.
The cushion pad is mounted on and supported by the front frame spring 30 on the surface spring 20 so that both sides thereof are located inside the side frame springs 40, 40, and the cushion pad is covered with a seat cover for use. Then, the seat receiving 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 rectangular frame member 21, and supports the cushion pad. Therefore, when seated, 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.
Applied in a state orthogonal to the
The force distributed to each spring steel wire 25 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 2
As described above, the force transmitted to the rear rod portion 23 and the rear rod portion 23 is held by the front rod portion 22 of the rectangular frame member 21 so as to be vertically rotatable with respect to the front edge of the opening of the cushion frame 1 via the connecting member 50. Further, since the rear rod portion 23 of the rectangular frame member 21 is elastically supported by the cushion frame 1 with the tension spring 4, it is applied to the surface spring 20 in a state where the surface pressure is equalized, and the spring steel The elasticity of line 25,
The elastic force of the tension springs 4 and the elasticity of the two side rods 24, 24 of the rectangular frame member 21 buffer the cushioning pad, which is mainly mounted on the surface spring 20 even if the cushion pad is extremely thin. It is possible to obtain a comfortable ride without a feeling of tingling.
【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, each spring steel wire 25 bends downward and exhibits a predetermined elasticity as shown in FIG. 2, but when the maximum load is reached, the rear rod portion 23 causes the tension lever 4 to move. Combined with the action of, it bends diagonally forward in a bow shape. At this time, the two side rods 24, 24 are stretched to function to prevent the rear rod 23 from bending excessively in an arcuate shape. Therefore, the seat surface is formed in a bowl shape with good stability. . When traveling in this seated state, traveling vibration occurs and the load of the occupant changes vertically, front-rear, and left-right, but when vertical movement is applied to the surface spring 20, the front rod portion 22 causes the cushion frame to move. Since the connecting member 50 is held rotatably in the vertical direction with respect to the front edge of the opening 1 through the connecting member 50, when the connecting member 50 is normally seated, the tension spring as shown by the two-dot chain line in FIG. Four
When the maximum load is further applied, the connecting member 50 causes the connecting member 50 to move as shown by the alternate long and short dash line.
Since the load is relieved while rotating in the forward direction centering around and balancing the tension spring 4, a comfortable cushioning effect can always be obtained in any case. Further, even if a force is applied to the seat receiving spring member 2 when the center of gravity of the occupant moves to the left and right, the side rod portions 24, 24 work to stretch as described above to correct the seat surface. A force for always returning to the normal position acts on the seat receiving spring member 2, so that an extremely stable seat surface posture can be obtained. Further, even when the center of gravity of the occupant moves back and forth, the front rod portion 22 is held by the connecting member 50 with respect to the front edge of the opening of the cushion frame 1 so that the front rod 22 can be rotated in the up and down direction. Is a connecting member 50
Since the movement is restricted to the range of the movement of the seat, there is little change in the seat surface and a comfortable ride can be obtained.
【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 longitudinal direction in the rectangular frame member 21 is different from the spring steel wires stretched in the left and right directions. Since the load is distributed on the surface springs, the surface pressure is equalized. Therefore, even if the cushion pad mounted on the surface spring 20 is made thin, a sufficient cushioning effect can be obtained. 2, a connecting member 50, one end of which is rotatably attached to the front rod portion 22 of the rectangular frame member 21 and the other end of which is attached to the front end of the cushion frame 1 so as to be vertically rotatable. The cushion frame 1 is elastically supported by the rear rod portion 23 of the seat receiving spring material 2 and a plurality of tension springs 4 whose both ends are connected to the rear end of the cushion frame 1 and always pulls the seat receiving spring material 2 rearward. 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,
Furthermore, since the tension spring 4 is supported only by the rear rod portion 23 of the rectangular frame member 21, the number of tension springs 4 used is reduced, so that not only the cost of parts can be reduced but also the number of mounting steps can be simplified. There are also great advantages 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 receiving 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 attached. Since the connecting member 50 is rotatably attached to the front end and can be rotated in the vertical direction, the connecting member 50 is connected to the rectangular frame member 21 even when a large load is applied during traveling on a rough road. Up and down strokes that cannot be ensured with the spring force of 10 can be secured, and therefore, the spring force of the rectangular frame member 21 effectively acts, so that there is no bottoming feeling 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 located higher than the front rod portion 22 of the rectangular frame member 21. In the structure in which the aforesaid gate-shaped front frame spring 30 is supported by the apex portion 31, the front end of the cushion pad is moved by the upper limb portion when the driver sits down and operates the pedal. Even if it is pushed down, the restoring force of the front frame spring 30 exerts an appropriate cushioning property, which eliminates the discomfort felt when the pedal is operated.
【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, in which the side frame springs 40, 40 are provided on both sides of the surface spring 20 in an obliquely upward direction, the side frame springs 40, 40 allow the seated person to pass through a cushion pad. It will be supported from both sides, so
This is to ensure the side hold property when traveling on a curve. Particularly, 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 can be improved. Is increased by the side frame springs 40, 40, and the spring force of the side frame springs 40, 40 is also increased 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 has a cushion frame in which a seat spring having a surface spring in which a spring steel wire is stretched in the front-rear direction is arranged in the opening of the cushion frame. On the other hand, the front end is held by a connecting member that can be rotated in the vertical direction and the rear end is elastically supported by a tension spring, so that the surface pressure of the seat surface is evenly generated and a thin type is achieved. The cushion pad can be used comfortably, and the surface spring can be elastically supported on the cushion frame by a slight tension spring, so that the cushion frame can be provided at low cost. The front end of the and the cushion frame are not simply fixed or pivotally connected, but by interposing a rotatable connecting member between them, it is possible to reduce Even if heavy weight is applied, the connecting member secures a vertical stroke that cannot be secured by the spring force of the rectangular frame material, and the spring force of the rectangular frame material acts effectively, so there is no bottoming feeling and dynamic sitting comfort is especially The point of being good 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。Further, in the front portion of the surface spring, a gate-shaped front frame spring is extended so that its top rod portion is located higher than the front rod portion of the rectangular frame member. Even if the front end of the pad is pushed down by the upper limbs, this front frame spring exerts an appropriate cushioning property to eliminate the discomfort felt when operating the pedal, and those with side frame springs obliquely upward facing on both sides are The side frame springs support the occupant from both sides via cushion pads, so that the side hold property can be secured when driving on a curve.For example, load fluctuations due to vehicle vibrations and irregular movements and the center of gravity position. It will be stable against the movement of. Therefore, the present invention eliminates the conventional problems, and of course, there is no problem in terms of static sitting comfort, and also dynamic sitting comfort is good, and even if a thin cushion pad is used, it can be used. As a cushion pad support device for a vehicle seat with a good feeling, it has a great contribution to the development of the industry.
【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 states of the seat receiving spring before and after seating in 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 receiving spring member 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 a relationship between a surface spring, a connecting member, and a tension spring when not in use, seated, and at maximum load.
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 1 Cushion frame 2 Seat receiving spring material 11 Opening 20 Face spring 21 Square frame material 22 Front rod 23 Rear rod 24 Side rod 25 Spring steel wire 30 Front frame spring 31 Top rod 40 Side frame spring 50 Connection Element
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 tensioning a plurality of spring steel wires (25) in the front-rear direction inside a rectangular frame material (21) having both required rigidity and elasticity. Spring material (2)
Is placed in the opening (11) of the cushion frame (1), one end of this seat receiving spring material (2) is rotatably attached to the front rod (22), and the other end is cushion frame (1). Connecting member that is rotatably attached to the front end of the and can be rotated in the vertical direction
(50), the rear rod portion (23) of the seat receiving spring material (2) and the rear end of the cushion frame (1) are connected at both ends so that the continuous seat receiving spring material (2)
A support device for a cushion pad in a vehicle seat, characterized in that the cushion frame (1) is elastically supported by a plurality of tension springs (4) pulling the vehicle rearward.
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. The seat receiving spring member (2) comprises a gate-shaped front frame spring (30) at the front of the surface spring (20) and a top rod (31) at the front of the rectangular frame member (21). The device for supporting a cushion pad in 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 material (2) according to claim 1 or 2, wherein side frame springs (40), (40) that are inclined upward are provided on both sides of the surface spring (20). Cushion Pad Support Device for Vehicle Seats in Japan.
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. A support device for a cushion pad in a vehicle seat according to claim 3, wherein the front ends of the side frame springs (40) (40) are connected to the front frame spring (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 true JPH0819451A (en) | 1996-01-23 |
| JP3142442B2 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2751278A1 (en) * | 1996-07-22 | 1998-01-23 | Hammerstein Gmbh C Rob | SEAT AREA OF A VEHICLE SEAT WITH A CUSHION WHICH INCLINATION MAY BE ADJUSTED BY ADJUSTING THE HEIGHT OF THE EDGE BEFORE THE SEAT |
-
1994
- 1994-07-11 JP JP06158426A patent/JP3142442B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2751278A1 (en) * | 1996-07-22 | 1998-01-23 | Hammerstein Gmbh C Rob | SEAT AREA OF A VEHICLE SEAT WITH A CUSHION WHICH INCLINATION MAY BE ADJUSTED BY ADJUSTING THE HEIGHT OF THE EDGE BEFORE THE SEAT |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3142442B2 (en) | 2001-03-07 |
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| Date | Code | Title | Description |
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| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20001205 |
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| LAPS | Cancellation because of no payment of annual fees |