JPH03151903A - Ski boots - Google Patents
Ski bootsInfo
- Publication number
- JPH03151903A JPH03151903A JP2284534A JP28453490A JPH03151903A JP H03151903 A JPH03151903 A JP H03151903A JP 2284534 A JP2284534 A JP 2284534A JP 28453490 A JP28453490 A JP 28453490A JP H03151903 A JPH03151903 A JP H03151903A
- Authority
- JP
- Japan
- Prior art keywords
- wall
- cavity
- ski boot
- ski
- ski boots
- 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.)
- Pending
Links
- 239000004033 plastic Substances 0.000 claims abstract description 5
- 244000309466 calf Species 0.000 claims abstract description 4
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 210000002683 foot Anatomy 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000012815 thermoplastic material Substances 0.000 description 3
- 210000003371 toe Anatomy 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000012763 reinforcing filler Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1703—Introducing an auxiliary fluid into the mould
- B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B5/00—Footwear for sporting purposes
- A43B5/04—Ski or like boots
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は足と踵を囲み底部を形成する下部シェルと、当
該下部シェル上に接合されたー又は二つの部材からなる
シャフトとから構成される鋳型成形によるプラスチック
材料製スキーブーツの構造に関するものである。[Detailed Description of the Invention] <Industrial Application> The present invention comprises a lower shell surrounding the foot and heel and forming a bottom, and a shaft made of two or more members joined onto the lower shell. The present invention relates to the structure of ski boots made of plastic material by molding.
〈従来の技術〉
このタイプのシェルは、あらゆるスキーブーツメーカー
によって、今日まで採用されているものである。しかし
、従来のプラスチック材料の鋳型への注入技術は、デザ
イナ−や製造業者に、多くの束縛や制限を課すものであ
った。PRIOR ART This type of shell is used by all ski boot manufacturers to this day. However, conventional techniques for injecting plastic materials into molds impose many constraints and limitations on designers and manufacturers.
即ち、従来の方法ではブーツの重量を過度のものとする
ことなしに、あるいは冷却時におこる加熱可塑性材料の
収縮による厚さの極端な変形を考慮に入れることなしに
、十分な厚さを備えたシェルを製造することあるいはシ
ェルの個々の部分について求められる剛度と柔軟性それ
ぞれの機能を発揮するように多様な厚さをシェルの個々
の部分に与えたシェルを製造することは不可能であった
。このことは、デザイナ−及び製造業者に厚さが均一で
かつ比較的薄いシェルを設計することを強制し、その結
果スキーブーツに屈曲やねじれが生じたときの剛性は低
いものとならざるを得なかった０例えば、靴底の部分に
大きな剛性を与えるためには、底部の厚みを過度に厚く
するか、より硬い材料を用いる方法があるが、前者の場
合、重量と経費の増大を招き、後者の場合経費の増大を
招（とともに、スキーヤ−の楽しみを減じるものとなっ
た。That is, the boots are sufficiently thick without making the boot excessively heavy or taking into account the extreme deformation of the thickness due to shrinkage of the thermoplastic material that occurs during cooling. It has not been possible to manufacture shells or to manufacture shells in which the individual parts of the shell have a variety of thicknesses so as to provide the required stiffness and flexibility functions for each part of the shell. . This forces designers and manufacturers to design shells that are uniform in thickness and relatively thin, resulting in ski boots that are less stiff when bent or twisted. For example, in order to provide greater rigidity to the sole of a shoe, there are ways to make the sole excessively thick or to use a harder material, but in the former case, this increases weight and cost; In the latter case, this resulted in increased costs (as well as reduced enjoyment for skiers).
しかも、スキーブーツのシェルは外面と内面とで異なる
形状である必要がある０例えば、下部シェル底部の内側
表面はその外側表面との関係で前方へ傾斜している。こ
の傾斜を達成するために、補助の足裏支持部材を用いる
ことが必要となる。同様に、シャフトの後部についても
、外側表面はテンショニングレバーを固定するために平
坦であることが望ましい反面、その内側表面は、足の形
に適合した形状でなければならない。Moreover, the shell of a ski boot needs to have different shapes on its outer and inner surfaces; for example, the inner surface of the bottom of the lower shell is sloped forward in relation to its outer surface. To achieve this slope, it is necessary to use an auxiliary sole support member. Similarly, for the rear part of the shaft, the outer surface should preferably be flat to secure the tensioning lever, while the inner surface should be shaped to match the shape of the foot.
そのため、既に、底部が外部部材と内部部材に分割され
たスキーブーツのシェルを製造することが提案されてい
る（米国特許第３８４８３４７号）、シかし、このよう
なシェルはねじ止めによって組み立てられるべき２つの
部材から作られなければならず、当該方法による製造は
経費がかさみ、シェルの不滲透性を保証するために、特
殊な加工を施す必要があった。また、他の従来技術にお
いては、外側表面と、内側表面との形状を違えるために
、ブーツの内側に詰め物をしていた（米国特許第４７２
０９２６号）。Therefore, it has already been proposed (US Pat. No. 3,848,347) to produce ski boot shells whose bottom part is divided into an outer part and an inner part, but such shells are assembled by screwing. This method of manufacture was expensive and required special processing to ensure the impermeability of the shell. In other prior art, padding was used on the inside of the boot to make the outside and inside surfaces different in shape (U.S. Pat. No. 472
No. 0926).
〈発明が解決しようとする課題〉
従って本発明は上述の従来技術の欠点を克服するスキー
ブーツを提供することを目的とする。更に詳しくは、冷
却時の変形や、重量の増加を伴わず、はとんど均一な厚
さと外側形状と異なる内側形状を有する比較的薄い内壁
を有し、更に、屈曲やねじれの外力が加わる部分に求め
られる剛性と、その他の部分において求められる柔軟性
の両方を満足することができるスキーブーツを提供する
ことである。Problem to be Solved by the Invention The present invention therefore aims to provide a ski boot which overcomes the drawbacks of the prior art mentioned above. More specifically, it does not undergo deformation during cooling or increase in weight, has a relatively thin inner wall with an almost uniform thickness and an inner shape different from the outer shape, and is further subjected to external bending or twisting forces. To provide a ski boot that can satisfy both the rigidity required in one part and the flexibility required in other parts.
く課題を解決するための手段〉
上記の目的を達成するために、本発明に係るスキーブー
ツは、靴底を形成し足と踵を包む下部シェルと、シャフ
トとからなるスキーブーツに空洞を形成する二重の壁を
設けたものである。Means for Solving the Problems> In order to achieve the above object, the ski boots according to the present invention include a ski boot that includes a lower shell that forms the sole and wraps around the foot and heel, and a shaft that has a cavity formed therein. It has a double wall that protects the building.
この二重の壁は均等な厚さのプラスチック部材であるこ
とが好ましく、また、二重の壁の内壁は外壁と形状を異
ならせることができる。The double wall is preferably a plastic member of uniform thickness, and the inner wall of the double wall can differ in shape from the outer wall.
当該下部シェルの底部の内壁はつま先方向が下方に傾斜
していることがスキーの操作性をよくするために望まし
い。In order to improve the operability of the ski, it is desirable that the inner wall of the bottom of the lower shell be sloped downward in the direction of the toe.
更にシャフトの後部の空洞を形成する二重の壁のうち、
内壁は、ふくらはぎの形状に適合し、外壁は平面形状あ
るいは円筒形状であることが好ましい。Furthermore, of the double walls forming the rear cavity of the shaft,
Preferably, the inner wall conforms to the shape of the calf, and the outer wall is planar or cylindrical.
なお、当該空洞は空であっても、絶縁材料あるいは液体
で充填されていてもよい。Note that the cavity may be empty or filled with an insulating material or liquid.
〈実施例〉
次に本発明の非限定的一実施例を図面に基づいて説明す
る。<Example> Next, a non-limiting example of the present invention will be described based on the drawings.
第１図に示す下部シェルは、その底部に踵からつま先へ
延びる空洞ｌを有している。当該空洞１は均一の厚さの
２つの壁、外壁２及び内壁３によって囲まれている。当
該外壁２は、スキーブーツの底を構成しているが、内壁
３はスキーをするのに必要な傾斜を足に与え、これを補
助するためにスキーブーツの前部が低（なるよう傾けら
れている。足のつま先が納められる部分には、この部分
に適度な剛性を与えるために小さな空洞４が設けられて
いる。当該空洞４はその内側及び外側を比較的薄い２つ
の壁、内壁５及び外壁６で囲まれている。第１図中の甲
皮部分７は、その厚さを変えることができ、足の上部を
補うための１つ又は２つの耳状の甲皮部分となる。The lower shell shown in FIG. 1 has at its bottom a cavity l extending from the heel to the toe. The cavity 1 is surrounded by two walls of uniform thickness, an outer wall 2 and an inner wall 3. The outer wall 2 constitutes the sole of the ski boot, while the inner wall 3 gives the foot the inclination necessary for skiing, and to assist this, the front part of the ski boot is tilted low. A small cavity 4 is provided in the area where the toes of the foot are accommodated in order to provide adequate rigidity to this area.The cavity 4 is surrounded by two relatively thin walls, an inner wall 5 and is surrounded by an outer wall 6. The upper part 7 in FIG.
空洞１．４は、加熱可塑性材料を鋳型に注入するのと同
時にガスを注入することによって形成される。The cavity 1.4 is formed by injecting gas at the same time as the thermoplastic material is injected into the mold.
こうした技術は、例えば、
ｒＭｉｔ ｎｅｕｅｍ Ｖｅｒｆａｈｒｅｎ Ｈｏｃｈ
ｗｅｒｔｉｇｅ ＦｏｒｍｔｅｉｌｅＷｉｒｔｓｃｈａ
ｆｔｌｉｃｈ ｈｅｒｓｔｅｌｌｅｎＪ（雑誌ＰＬＡ
ＳＴＶＥＲＡＲＢＥＩＴＥＲ４Ｇの１９８９年度版、第
１号中の記事）、 ｒＤｅｒ Ｇａ５１ｎｎｅｎｄｒｕ
ｃｋｐｒｏｚｅｓｓＪ （雑誌Ｋｕｎｓｔｓｔｏｆｆ
Ｊｏｕｒｎａｌ １９８９年６月号中の記事）、ｒＧ
ａｓ−ａｓｓｉｓｔ １ｎｊｅｃｔｉｏｎ ＩＩＩｏｌ
ｄｉｎｇ： ｍｏｒｅ ｖａｒｉａｎｔｓｆｒｏｍ ｍ
ｏｒｅ ５ｏｕｒｃｅｓＪ、（Ｍｏｄｅｒｎ Ｐｌａｓ
ｔｉｃｓＩｎｔｅｒｎａｔｉｏｎａ１、 １９８９年２
月号中の記事）に記載されている。Such techniques are described, for example, by Mit neuem Verfahren Hoch
Wertige Formteile Wirtscha
ftlich herstellenJ (magazine PLA
Article in the 1989 edition of STVERARBEITER4G, No. 1), rDer Ga51nnendru
ckprozessJ (Magazine Kunststoff
Journal June 1989 issue), rG
as-assist 1njection IIIol
ding: more variants from m
ore 5sourcesJ, (Modern Plus
tics International 1, 1989 2
(article in the monthly issue).
このガスとしては通常窒素が使用される。Nitrogen is usually used as this gas.
このガスは加熱可塑性材料よりも低い圧力下で、注入ノ
ズルの中央から、その一部が第１図に示された注入尖峰
（ｃｏｎｅ） ９の中に形成された経路８を経て鋳型の
中に注入される。この注入尖峰９はもちろん、その後通
常どおり取り去られる。当該経路８は空洞ｌを空にする
ために真空下で閉じられるか、あるいは、空洞ｌを空気
で満たすために周囲の空気に触れる状態で閉じる。また
、スキーブーツの底部の断熱効果を改善するために空洞
１を膨張した状態の絶縁材料または、特殊な液体で満た
してもよい。This gas enters the mold from the center of the injection nozzle, at a pressure lower than that of the thermoplastic material, through a channel 8, a portion of which is formed in the injection cone 9 shown in FIG. Injected. This injection peak 9 is of course subsequently removed as usual. The channel 8 is closed under vacuum in order to empty the cavity l, or it is closed in contact with the surrounding air in order to fill the cavity l with air. The cavity 1 may also be filled with expanded insulating material or with a special liquid to improve the insulation of the bottom of the ski boot.
第２図及び第３図は、下部シェルとヒンジ結合部１６で
ヒンジ結合されるべき２つの部材からなるシャフトのう
ちの後部シャフト１０を示すものである。後部シャフト
１０の後方には、平面的なあるいは円筒状の外壁１２と
踵を収納部に保持するための起伏とふくらはぎの形状に
適合した形状を有する内壁１３とによって囲まれた空洞
１１が設けられている。当該内壁１３の下部１３ａは下
部シェルの外周形状に適合するために丸みがつけられて
いる。下部シェルの場合と同様に、ガスは、注入尖峰１
５中に形成された経路１４を経て注入される。外壁１２
及び内壁１３は比較的薄く、均等な厚さのものであるが
、空洞１１は、屈曲やねじれに対して強固な構造を構成
している。FIGS. 2 and 3 show the rear shaft 10 of a two-piece shaft to be hingedly connected at a hinge joint 16 to the lower shell. At the rear of the rear shaft 10, there is provided a cavity 11 surrounded by a flat or cylindrical outer wall 12 and an inner wall 13 having an undulation for holding the heel in the storage part and a shape adapted to the shape of the calf. ing. The lower part 13a of the inner wall 13 is rounded to match the outer peripheral shape of the lower shell. As in the case of the lower shell, the gas enters the injection peak 1
It is injected via a channel 14 formed in 5. Outer wall 12
Although the inner walls 13 and 13 are relatively thin and of uniform thickness, the cavity 11 constitutes a strong structure against bending and twisting.
同様に、踵部分の内側の形状と、外側のシェルの形状と
を異ならせた米国特許第４７２０９２６号に記載された
スキーブーツの下部シェルの後部形状もこの方法で作る
ことができる。Similarly, the rear shape of the lower shell of the ski boot described in US Pat. No. 4,720,926, which differs in the shape of the inner side of the heel part and the shape of the outer shell, can also be produced in this way.
く効果〉
本発明のスキーブーツは以上のように構成されているの
で、重量の増加を伴うことなくかつ補強材や、充填材を
用いることな（、スキー中に様々な屈曲やねじれの外力
が加わる部分についての剛性と、これらの外力の加わら
ない部分についての柔軟性とを備えるという優れた効果
を奏するものである。また、シェルの外側と内側とに非
常に異なった形状を与えることができ、空洞は絶縁体と
して優れた断熱効果を発揮する。Effects> Since the ski boots of the present invention are constructed as described above, the ski boots of the present invention can be used without increasing the weight and without using reinforcing materials or fillers. It has the excellent effect of providing rigidity in the parts to which external forces are applied and flexibility in the parts to which these external forces are not applied.Also, it is possible to give very different shapes to the outside and inside of the shell. , the cavity exhibits excellent heat insulation effects as an insulator.
しかも、空洞はスキーブーツの締めっけケーブルやバン
ドの通路としであるいは種々の機構の収納場所としても
使用し得る。更に重量が増すことがないので快適にスキ
ーを楽しむことができ、かつ製造コストがかさむことも
ない。Furthermore, the cavity can be used as a passageway for the lacing cables and bands of the ski boot, or as a storage place for various mechanisms. Furthermore, since the weight does not increase, you can enjoy skiing comfortably, and the manufacturing cost does not increase.
第１図は鋳型から取り出された直後の下部シェルを略示
する長手方向の中央縦断面図、第２図は鋳型から取り出
された直後のシャフトの後部を略示する長手方向の中央
縦断面図、第３図は第２図■−■線部分横断面図である
。
１．４．１１・・・空洞
２．６．１２・・・外壁
３．５．１３・・・内壁
ＦＩＧ、１FIG. 1 is a central longitudinal sectional view schematically showing the lower shell immediately after being removed from the mold, and FIG. 2 is a central longitudinal sectional view schematically showing the rear part of the shaft immediately after being removed from the mold. , FIG. 3 is a partial cross-sectional view taken along the line ■-■ in FIG. 1.4.11...Cavity 2.6.12...Outer wall 3.5.13...Inner wall FIG, 1
Claims (8)
トとからなるスキーブーツにおいて、空洞（１、４、１
１）を形成する二重の壁（２と３、５と６、１２と１３
）を有することを特徴とするスキーブーツ。(1) In ski boots, which consist of a lower shell that forms the sole and encloses the foot and heel, and a shaft, a hollow (1, 4, 1
1) double walls (2 and 3, 5 and 6, 12 and 13)
) Ski boots characterized by having:
あることを特徴とする請求項１に記載のスキーブーツ。2. Ski boot according to claim 1, characterized in that said double wall is a plastic member of uniform thickness.
、６、１２）と形状が異なることを特徴とする請求項１
または２のいずれかに記載のスキーブーツ。(3) The inner walls (3, 5, 13) of the double wall are the outer walls (2
, 6, 12). Claim 1:
or the ski boots described in any of 2.
が下方に傾斜していることを特徴とする請求項１乃至３
のいずれかに記載のスキーブーツ。(4) Claims 1 to 3, wherein the inner wall (3) at the bottom of the lower shell is inclined downward in the toe direction.
Ski boots listed in any of the above.
壁（１３）は、ふくらはぎの形状に適合することを特徴
とする請求項１乃至３のいずれかに記載のスキーブーツ
。5. Ski boot according to claim 1, characterized in that the inner wall (13) forming the rear cavity (11) of the shaft is adapted to the shape of a calf.
壁（１２）は平面形状あるいは円筒形状であることを特
徴とする請求項１乃至３のいずれかに記載のスキーブー
ツ。(6) The ski boot according to any one of claims 1 to 3, characterized in that the outer wall (12) forming the rear cavity (11) of the shaft has a planar shape or a cylindrical shape.
とする請求項１乃至６のいずれかに記載のスキーブーツ
。(7) Ski boots according to any one of claims 1 to 6, characterized in that the cavities (1, 4, 11) are empty.
液体で充填されていることを特徴とする請求項１乃至６
のいずれかに記載のスキーブーツ。(8) Claims 1 to 6 characterized in that the cavity (1, 4, 11) is filled with an insulating material or a liquid.
Ski boots listed in any of the above.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH03858/89-3 | 1989-10-24 | ||
| CH3858/89A CH681503A5 (en) | 1989-10-24 | 1989-10-24 | Gas assisted injection moulding of ski boot with hollow sole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03151903A true JPH03151903A (en) | 1991-06-28 |
Family
ID=4264980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2284534A Pending JPH03151903A (en) | 1989-10-24 | 1990-10-24 | Ski boots |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH03151903A (en) |
| CH (1) | CH681503A5 (en) |
| FR (1) | FR2653311A1 (en) |
| IT (1) | IT1243427B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08322604A (en) * | 1995-05-30 | 1996-12-10 | Nordica Spa | Shoe manufacturing method, and shoes manufactured by this method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1269417B (en) * | 1994-01-05 | 1997-04-01 | Fausto Brambilla | SKI BOOT |
| AT1700U1 (en) * | 1996-10-25 | 1997-10-27 | Atomic Austria Gmbh | SKI BOOT |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4136220A (en) * | 1976-07-14 | 1979-01-23 | Union Carbide Corporation | Process for the molding of plastic structural web and the resulting articles |
| IT1138636B (en) * | 1981-09-25 | 1986-09-17 | Giuseppe Ponzielli | PROCESS PERFECTED FOR OBTAINING EXPANDED MANUFACTURES IN THERMOPLASTIC MATERIAL AND MANUFACTURE OBTAINED BY SUCH PROCEDURE |
| GB2158002B (en) * | 1984-05-04 | 1987-06-17 | Peerless Foam Moulding Co | Injection moulding |
| JPH0788025B2 (en) * | 1987-04-28 | 1995-09-27 | 三菱瓦斯化学株式会社 | Manufacturing method of synthetic resin molded product having uneven wall reinforcement structure |
-
1989
- 1989-10-24 CH CH3858/89A patent/CH681503A5/en not_active IP Right Cessation
-
1990
- 1990-09-27 IT IT02158390A patent/IT1243427B/en active IP Right Grant
- 1990-10-15 FR FR9012681A patent/FR2653311A1/en active Pending
- 1990-10-24 JP JP2284534A patent/JPH03151903A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08322604A (en) * | 1995-05-30 | 1996-12-10 | Nordica Spa | Shoe manufacturing method, and shoes manufactured by this method |
Also Published As
| Publication number | Publication date |
|---|---|
| CH681503A5 (en) | 1993-04-15 |
| FR2653311A1 (en) | 1991-04-26 |
| IT9021583A1 (en) | 1992-03-27 |
| IT9021583A0 (en) | 1990-09-27 |
| IT1243427B (en) | 1994-06-10 |
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