JP4538669B2 - Height-adjustable door cart - Google Patents
Height-adjustable door cart Download PDFInfo
- Publication number
- JP4538669B2 JP4538669B2 JP2001043772A JP2001043772A JP4538669B2 JP 4538669 B2 JP4538669 B2 JP 4538669B2 JP 2001043772 A JP2001043772 A JP 2001043772A JP 2001043772 A JP2001043772 A JP 2001043772A JP 4538669 B2 JP4538669 B2 JP 4538669B2
- Authority
- JP
- Japan
- Prior art keywords
- door
- wheel
- outer frame
- inner frame
- height
- 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 - Lifetime
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- Support Devices For Sliding Doors (AREA)
Description
【0001】
【発明の属する技術分野】
本発明は高さ調整自在な戸車に関する。特に、車輪が合成樹脂製であり、網戸など比較的軽量な戸に用いられる高さ調整自在な戸車に関する。
【0002】
【従来の技術】
従来の高さ調整自在な戸車においては、戸車がレールに乗せられた際には、車輪の両縁それぞれに設けられたフランジ部によってレールを挟み、戸車がレールから外れないようにしている。
【0003】
【発明が解決しようとする課題】
ところで、上記戸車の車輪は通常、合成樹脂製であって両縁にフランジを設けるために、車輪は、これを直径で二分した形状の凹部を有する金型を2つ組み合わせることによって製作される。
【0004】
しかし、このようにして製作された車輪は、金型の合わせ部にバリが生じる。このバリは車輪の軌道面にも存在するため、車輪がレールに乗って回転するさいにバリが邪魔になるという問題が生じ、車輪が回転せず滑り開閉が重たくなり、場合によっては戸車がレールから外れることがある。
【0005】
本発明は上記問題を解決することを課題とし、レールに乗って滑らかに回転する車輪を備えた戸車を提供することを目的とする。
【0006】
【課題を解決するための手段および発明の効果】
上記課題を解決するために本発明の戸車は、
レール上を移動する戸車であって、戸に固定される外枠と、外枠に揺動自在に取り付けられた内枠と、外枠にねじ嵌められかつ先端が内枠に当接させられて内枠の外枠に対する位置を調整する高さ調整用ねじと、内枠に車軸を介して回転自在に取り付けられた車輪とを備え、車輪の一側縁にフランジ部が形成され、このフランジ部と内枠とによってレールを挟むようになされている
ものである。
【0007】
この戸車によれば、車輪の一側縁にのみフランジ部が形成されているので、車輪の形状に対応する凹部を有する第1の金型と、この凹部を閉鎖する第2の金型とを組み合わせて車輪を製作することができる。従って、車輪の軌道面にバリが生じることが無く、車輪がレールに乗って滑らかに回転する。
【0008】
さらに、1つの凹部で1つの車輪を製作することができるので1つの金型に多数の凹部を設けて1度に多数の車輪を製作することが可能となって車輪の製作コストが安くなる。
【0009】
また、上記戸車において、外枠が略L字状をなし、外枠の垂直部分が戸に取り付けられるようになされているとともに、外枠の水平部分が互いに間隔をおいた2つの側壁を有し、内枠が外枠の両側壁間にはめ入れられる挿入壁部と、外枠から突出した突出壁部とを備え、突出壁部に車輪が取り付けられているとともにフランジ部とによってレールを挟む部分が形成されている
ことがある。
【0010】
この戸車によれば、外枠の垂直部分でのみ、すなわち片持式で戸車を戸に取り付けることができ、戸車を戸に取り付ける作業が簡単になる。
【0011】
なお、内枠を外枠に揺動自在に取り付けるために、外枠の両側壁下部に円弧状部分を有する切欠を形成し、内枠に円弧状部分にはめ入れられる突部を形成し、切欠の円弧状部分にはめ入れられた突部を軸として内枠が揺動するようにするとよい。さらに、外枠の両側壁の少なくとも一方に円弧状孔を形成し、内枠にこの円弧状孔にはめ入れられる突部を形成し、突部が円弧状孔の端部に当接することにより内枠の揺動角が規制されるようにするとよい。
【0012】
このような構成とすれば、内枠の形状が単純なものとなり、車輪の場合と同様、1つの金型に内枠の形状に対応する多数の凹部を形成し、一度に多数の内枠を得ることができ、内枠の製作コストが安くなる。
【0013】
また、下方かつ車輪側に突出するように内枠の突出壁部に形成された円弧状部によってレールを挟むようになされていることがある。
【0014】
この戸車においては、車輪が回転してレール上を移動する際に内枠のレールを挟む部分が戸車の移動を妨げることがない。
【0015】
【発明の実施の形態】
以下、図1〜図4を参照して本発明の高さ調整自在な戸車の1実施形態について説明する。なお、これ以降の説明においては、図2の左右を左右といい、図2の紙面表側を前、紙面裏側を後という。
【0016】
戸車は網戸などの比較的軽量な戸の下端左部および下端右部にそれぞれ取り付けられてレール上に乗せられるものであるが、左の戸車と右の戸車とは左右対称であるので、以下、右の戸車について説明する。
【0017】
戸車(1)は、戸(D)に固定される合成樹脂製外枠(5)と、外枠(5)に揺動自在に取り付けられた合成樹脂製内枠(4)と、内枠(4)の外枠(5)に対する位置を調整するための高さ調整用ねじ(6)と、内枠(4)に一端が支持された車軸(3)に回転自在に取り付けられた合成樹脂製車輪(2)とを備えている。
【0018】
外枠(5)は略L字状をなしている。外枠(5)の水平部分(5a)は前後に間隔をおいた2つの垂直側壁および両垂直側壁の上端を連結する水平壁とにより構成され、前後垂直側壁間に後に詳しく説明する内枠(4)の右側挿入壁部(4h)がはめ入れられるようになっている。また、前後垂直側壁の下部には相対向する揺動支持用切欠(5b)が形成されている。この、切欠(5b)の上側は優弧状になっている。そして、前垂直側壁の左上部には揺動角規制用円弧状孔(5c)があけられている。
【0019】
外枠(5)の垂直部分の上部には、外枠(5)を戸(D)に取り付けるための取付ねじ(7)が貫通させられる取付用ねじ孔(5d)があけられ、垂直部分の中央やや下より部分には、高さ調整用ねじ(6)の頭がはめ入れられる凹部(5e)が形成されている。なお凹部(5e)には高さ調整用ねじ(6)用の貫通ねじ孔が連続してあけられており、頭が凹部(5e)にはめ入れられた高さ調整用ねじ(6)の先端が水平部分(5a)の両垂直側壁間に位置するようになっている。
【0020】
内枠(4)は、右側の部分が外枠(5)の水平部(5a)の前後両側壁間にはめ入れられる挿入壁部(4h)となされ、左側の部分が外枠(5)から突出した突出壁部(4g)となされ、突出壁部(4g)に車輪(2)が取り付けられているものである。内枠(4)の挿入壁部(4h)の前後両面には、外枠(5)の切欠(5b)の上側の優弧状部にはめ入られる揺動支持用突部(4a)が形成され、挿入壁部(4h)の前面には外枠(5)の円弧状孔(5c)にはめ入れられる揺動角規制用突部(4b)とが形成されている。
【0021】
突出壁部(4g)には車軸(3)の前端部が差し入れられる貫通孔(4c)があけられているとともに突出壁部(4g)の肉厚は挿入壁部(4h)の肉厚より薄く、突出壁部(4g)に取り付けられた車輪(2)が外枠(5)より前方に突出しないようになっている。また、貫通孔(4c)の周囲には車輪(2)の位置決用突部(4d)が形成されている。さらに、突出壁部(4g)の下部には下方かつ前方に突出した円弧状部(4e)が形成されている。
【0022】
車輪(2)の前側縁にはフランジ部(2a)が形成されている。フランジ部(2a)の外径は、円弧状部(4e)の外径とほぼ等しく、円弧状部(4e)とフランジ部(2a)の下側外縁部とが互いに対向するようになっている。また、車輪(2)のフランジ部(2a)以外の部分(符号(2b)で示す)の外径は円弧状部(4e)の内径より小さい。そして、車輪(2)の一端面には位置決用突部(4d)に嵌め被せられて車輪(2)の内枠(4)に対する位置決めを容易にする凹部(2c)が形成されている。
【0023】
このような構成を持つ戸車(1)を取り付けるための戸(D)は、縁部(Da)の厚みが他部(Db)の厚みより薄い。そして戸(D)の他部(Db)の垂直側面に外枠(5)の垂直部が当接させられ、かつ戸(D)の他部(Db)の水平面が外枠(5)の水平部(5a)に乗せられた状態で、取付用ねじ孔(5d)を貫通したねじ(7)が、戸(D)の他部(Db)の垂直側面にねじ込まれて戸(D)に戸車(1)が片持ち状態で固定される。
【0024】
戸(D)に固定された戸車(1)は、レール(R)に乗せられて戸(D)がレール(R)に取り付けられる。そして、戸(D)をレール(R)に取り付ける前は、内枠(4)が外枠(5)に対して高い位置になるように調整しておき、戸(D)をレール(R)に取り付けやすくする。戸(D)がレール(R)に取り付けられると、内枠(4)は、これの後面部(4f)が調整用ねじ(6)の先端に当接した状態で停止する。
【0025】
そして、取付後に調整用ねじ(6)を左方向に進ませて内枠(4)が外枠(5)に対して低い位置となるように調整し、レール(R)を車輪(2)のフランジ部(2a)と内枠(4)の円弧状部(4e)とで挟んで案内するようにして戸(D)がレール(R)から外れないようにする。
【0026】
なお、本発明の高さ調整自在な戸車の構成は上記のものに限られず、各部構成は適宜変更自在である。
【図面の簡単な説明】
【図1】本発明の高さ調整自在な戸車の分解斜視図である。
【図2】同戸車の側面図である。
【図3】同戸車の断面図である。
【図4】図2のIV-IV線に沿った断面図である。
【符号の説明】
(1) 戸車
(2) 車輪
(2a) フランジ部
(3) 車軸
(4e) 円弧状部
(4) 内枠
(5) 外枠
(6) 高さ調整用ねじ
(D) 戸
(R) レール[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a height adjustable door. In particular, the present invention relates to a height-adjustable door wheel used for a relatively light door such as a screen door whose wheels are made of synthetic resin.
[0002]
[Prior art]
In a conventional height-adjustable door, when the door is placed on a rail, the rail is sandwiched between flanges provided on both edges of the wheel so that the door does not come off the rail.
[0003]
[Problems to be solved by the invention]
By the way, the wheel of the door wheel is usually made of a synthetic resin and is provided with flanges on both edges, so that the wheel is manufactured by combining two molds each having a concave portion that is divided by a diameter.
[0004]
However, the wheel manufactured in this way has burrs at the mating part of the mold. Since this burr is also present on the raceway surface of the wheel, there is a problem that the burr gets in the way when the wheel rotates on the rail, the wheel does not rotate and the sliding opening and closing becomes heavy, and in some cases the door wheel is railed May fall off.
[0005]
This invention makes it a subject to solve the said problem, and it aims at providing the door wheel provided with the wheel which rides on a rail and rotates smoothly.
[0006]
[Means for Solving the Problems and Effects of the Invention]
In order to solve the above-mentioned problem,
A door wheel that moves on a rail, and includes an outer frame that is fixed to the door, an inner frame that is swingably attached to the outer frame, a screw fit on the outer frame, and a tip that is in contact with the inner frame. A height adjustment screw for adjusting the position of the inner frame relative to the outer frame, and a wheel rotatably attached to the inner frame via an axle, and a flange portion is formed on one side edge of the wheel. And the inner frame sandwich the rail.
[0007]
According to this door wheel, since the flange portion is formed only on one side edge of the wheel, the first mold having a recess corresponding to the shape of the wheel and the second mold for closing the recess are provided. Wheels can be manufactured in combination. Therefore, no burr is generated on the raceway surface of the wheel, and the wheel rotates smoothly on the rail.
[0008]
Furthermore, since one wheel can be manufactured with one recess, it is possible to manufacture many wheels at one time by providing a large number of recesses in one mold, and the manufacturing cost of the wheel is reduced.
[0009]
In the above-mentioned door car, the outer frame is substantially L-shaped, the vertical part of the outer frame is attached to the door, and the horizontal part of the outer frame has two side walls spaced from each other. A portion having an insertion wall portion into which the inner frame is fitted between both side walls of the outer frame and a protruding wall portion protruding from the outer frame, and a wheel is attached to the protruding wall portion and the rail is sandwiched by the flange portion May be formed.
[0010]
According to this door, the door can be attached to the door only in the vertical portion of the outer frame, that is, in a cantilever manner, and the operation of attaching the door to the door is simplified.
[0011]
In order to swingably attach the inner frame to the outer frame, a notch having an arc-shaped portion is formed in the lower part of both side walls of the outer frame, and a protrusion to be fitted into the arc-shaped portion is formed in the inner frame. It is preferable that the inner frame oscillates with the protrusions fitted into the arc-shaped portions as axes. Furthermore, an arc-shaped hole is formed in at least one of the both side walls of the outer frame, a protrusion is formed in the inner frame, and the protrusion is brought into contact with the end of the arc-shaped hole. The swing angle of the frame is preferably regulated.
[0012]
With such a configuration, the shape of the inner frame becomes simple, and as in the case of the wheel, a number of recesses corresponding to the shape of the inner frame are formed in one mold, and a number of inner frames are formed at a time. It can be obtained and the production cost of the inner frame is reduced.
[0013]
Further, the rail may be sandwiched between arc-shaped portions formed on the protruding wall portion of the inner frame so as to protrude downward and toward the wheel side.
[0014]
In this door car, when a wheel rotates and moves on a rail, the part which pinches | interposes the rail of an inner frame does not prevent the movement of a door wheel.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, with reference to FIGS. 1-4, one Embodiment of the height-adjustable doorrest of this invention is described. In the following description, the left and right sides in FIG. 2 are referred to as the left and right sides, the front side of the page of FIG. 2 is referred to as the front, and the back side of the page is referred to as the back.
[0016]
The door is attached to the rail at the lower left part and the lower right part of a relatively light door such as a screen door, but the left door and the right door are symmetrical. The right door is explained.
[0017]
The door cart (1) includes a synthetic resin outer frame (5) fixed to the door (D), a synthetic resin inner frame (4) swingably attached to the outer frame (5), and an inner frame ( 4) Height adjustment screw (6) for adjusting the position of the outer frame (5) relative to the outer frame (5), and a synthetic resin that is rotatably attached to the axle (3) supported at one end by the inner frame (4) With wheels (2).
[0018]
The outer frame (5) is substantially L-shaped. The horizontal portion (5a) of the outer frame (5) is composed of two vertical side walls spaced in the front-rear direction and a horizontal wall connecting the upper ends of both vertical side walls. The right insertion wall (4h) of 4) can be inserted. In addition, opposed swing support notches (5b) are formed in the lower part of the front and rear vertical side walls. The upper side of the notch (5b) is in a dominant arc shape. A swing angle restricting arc-shaped hole (5c) is formed in the upper left part of the front vertical side wall.
[0019]
At the upper part of the vertical part of the outer frame (5), a mounting screw hole (5d) through which a mounting screw (7) for mounting the outer frame (5) to the door (D) is passed is formed. A recessed portion (5e) into which the head of the height adjusting screw (6) can be fitted is formed at a position slightly below the center. In addition, a through screw hole for the height adjustment screw (6) is continuously drilled in the recess (5e), and the tip of the height adjustment screw (6) with the head fitted in the recess (5e) Is positioned between both vertical side walls of the horizontal portion (5a).
[0020]
The inner frame (4) has an insertion wall part (4h) that is fitted between the front and rear side walls of the horizontal part (5a) of the outer frame (5) on the right side, and the left side part from the outer frame (5). The protruding wall portion (4g) protrudes, and the wheel (2) is attached to the protruding wall portion (4g). On both the front and rear surfaces of the insertion wall (4h) of the inner frame (4), there are formed swing support protrusions (4a) that can be fitted into the upper arcuate portion above the notch (5b) of the outer frame (5). The front surface of the insertion wall portion (4h) is formed with a swing angle regulating projection (4b) that can be fitted into the arc-shaped hole (5c) of the outer frame (5).
[0021]
The protruding wall (4g) has a through hole (4c) into which the front end of the axle (3) can be inserted, and the thickness of the protruding wall (4g) is thinner than the thickness of the insertion wall (4h). The wheel (2) attached to the protruding wall portion (4g) does not protrude forward from the outer frame (5). A positioning protrusion (4d) for the wheel (2) is formed around the through hole (4c). Further, an arcuate portion (4e) projecting downward and forward is formed at the lower portion of the projecting wall portion (4g).
[0022]
A flange portion (2a) is formed at the front edge of the wheel (2). The outer diameter of the flange part (2a) is substantially equal to the outer diameter of the arcuate part (4e), and the arcuate part (4e) and the lower outer edge part of the flange part (2a) are opposed to each other. . Further, the outer diameter of the part (indicated by reference numeral (2b)) other than the flange part (2a) of the wheel (2) is smaller than the inner diameter of the arcuate part (4e). A recess (2c) is formed on one end face of the wheel (2) so as to be positioned on the inner frame (4) of the wheel (2) by being fitted on the positioning protrusion (4d).
[0023]
In the door (D) for attaching the door cart (1) having such a configuration, the edge (Da) is thinner than the other part (Db). The vertical part of the outer frame (5) is brought into contact with the vertical side surface of the other part (Db) of the door (D), and the horizontal surface of the other part (Db) of the door (D) is horizontal to the outer frame (5). The screw (7) that has passed through the mounting screw hole (5d) in the state of being placed on the part (5a) is screwed into the vertical side surface of the other part (Db) of the door (D), and the door (D) (1) is fixed in a cantilevered state.
[0024]
The door cart (1) fixed to the door (D) is placed on the rail (R), and the door (D) is attached to the rail (R). Before attaching the door (D) to the rail (R), adjust the inner frame (4) so that it is higher than the outer frame (5). Make it easy to install. When the door (D) is attached to the rail (R), the inner frame (4) stops with the rear surface portion (4f) of the inner frame (4) in contact with the tip of the adjustment screw (6).
[0025]
After installation, the adjustment screw (6) is advanced to the left to adjust the inner frame (4) so that it is at a lower position than the outer frame (5). The door (D) is prevented from being detached from the rail (R) by being sandwiched between the flange portion (2a) and the arc-shaped portion (4e) of the inner frame (4).
[0026]
In addition, the structure of the adjustable door wheel of the present invention is not limited to the above, and the structure of each part can be changed as appropriate.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a height adjustable door wheel of the present invention.
FIG. 2 is a side view of the same family car.
FIG. 3 is a cross-sectional view of the same door car.
4 is a cross-sectional view taken along line IV-IV in FIG.
[Explanation of symbols]
(1) Door-to-door
(2) Wheel
(2a) Flange
(3) Axle
(4e) Arc-shaped part
(4) Inner frame
(5) Outer frame
(6) Height adjustment screw
(D) Door
(R) Rail
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001043772A JP4538669B2 (en) | 2001-02-20 | 2001-02-20 | Height-adjustable door cart |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001043772A JP4538669B2 (en) | 2001-02-20 | 2001-02-20 | Height-adjustable door cart |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2002242518A JP2002242518A (en) | 2002-08-28 |
JP4538669B2 true JP4538669B2 (en) | 2010-09-08 |
Family
ID=18905888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2001043772A Expired - Lifetime JP4538669B2 (en) | 2001-02-20 | 2001-02-20 | Height-adjustable door cart |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4538669B2 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54154548U (en) * | 1978-04-17 | 1979-10-27 | ||
JPS61166077U (en) * | 1985-04-02 | 1986-10-15 | ||
JPH0186698U (en) * | 1987-11-27 | 1989-06-08 | ||
JPH035338U (en) * | 1989-05-31 | 1991-01-18 | ||
JPH116358A (en) * | 1997-06-17 | 1999-01-12 | Kuriki Seisakusho:Kk | Sash sheave |
-
2001
- 2001-02-20 JP JP2001043772A patent/JP4538669B2/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54154548U (en) * | 1978-04-17 | 1979-10-27 | ||
JPS61166077U (en) * | 1985-04-02 | 1986-10-15 | ||
JPH0186698U (en) * | 1987-11-27 | 1989-06-08 | ||
JPH035338U (en) * | 1989-05-31 | 1991-01-18 | ||
JPH116358A (en) * | 1997-06-17 | 1999-01-12 | Kuriki Seisakusho:Kk | Sash sheave |
Also Published As
Publication number | Publication date |
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JP2002242518A (en) | 2002-08-28 |
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