JP4315622B2

JP4315622B2 - Lever handle removal prevention structure

Info

Publication number: JP4315622B2
Application number: JP2001288148A
Authority: JP
Inventors: 中村勝則
Original assignee: 美和ロック株式会社
Priority date: 2001-09-21
Filing date: 2001-09-21
Publication date: 2009-08-19
Anticipated expiration: 2021-09-21
Also published as: JP2003097102A

Description

【０００１】
【発明の属する技術分野】
本発明は扉のレバーハンドルの抜脱防止構造に関する。
【０００２】
【従来の技術】
ドアの内外のハンドルは、棒状のハンドル角軸を介して一体的に結合している。ハンドルは、一般に「レバーハンドル」と称され、断面角型のハンドル軸の端部と嵌合する嵌合角穴を有する軸部と、この軸部に横方向に連設する把手部とから成り、ハンドルは全体として平面Ｌ型状に形成されている。
【０００３】
従来、扉のレバーハンドルの抜け防止構造は、台座の嵌合孔に嵌め込まれるレバーハンドルの軸部の外周壁に断面凹所状の環状溝を形成し、該環状溝に合成樹脂製の円形抜け止めカラーを嵌合していた。これによりレバーハンドルが抜け落ちないようにしていた。
【０００４】
しかしながら、抜け止めカラーは、完全なるリング形状（円形）であるにもかかわらず、樹脂の弾性力を活かして無理やりにはめこむので、当該抜け止めカラーが割れることがあった。また、一度環状溝に嵌合した円形抜け止めカラーを取り外すことを想定して前記環状溝の左右の角部（稜線部）を「なだらかなテーパー面」に形成していたので、それが原因でレバーハンドルが外れ易かった。
【０００５】
【発明が解決しようとする課題】
本発明は、以上のような従来の実施例が有する問題点に鑑み、第１の目的は、抜脱防止部材が嵌合の際に割れないこと。第２の目的は、レバーハンドルが台座から容易に或いはより一層抜けないようにすること。第３の目的は、部品点数を少なくして第１及び第２の目的を達成することである。
【０００６】
【課題を解決するための手段】
本発明のレバーハンドルの抜脱防止構造は、ドア１の一側面に固定される台座１１の断面段差状の嵌合孔１２に嵌め込まれかつ前記嵌合孔を貫通するハンドル角軸４の一端部側４ａが嵌入する軸穴８を有するレバーハンドルの軸部１３の外周壁に、第１被係合部としての断面チャンネル形状の嵌合溝１５を周設し、また、この嵌合溝１５の近傍に第２被係合部としての係合溝１６を周設し、前記嵌合溝１５には一部に切欠部１９を有しかつ材質自体の弾性力により外拡変位可能な合成樹脂製のリング状第１抜脱防止部材１８を前記嵌合孔１２の段差面に係止されるように嵌合し、一方、第１抜脱防止部材１８に外嵌合する環状規制部２１を有し、かつ内周壁に前記係合溝１６に係合する小突起２３を有する第２抜脱防止部材２０を嵌合軸部１３の先端部に嵌着したことを特徴とする。
【０００７】
上記構成に於いて、第２抜脱防止部材２０は、材質自体の弾性力により外拡変位可能なリング状の合成樹脂製部材であることを特徴とする。
【０００８】
【発明の実施の形態】
まず、図１は平面から見た本発明の実施形態の一例を示す。この図１に於いて、１はドア、１ａはドアの内壁面、１ｂはドアの外壁面である。したがって、２は室内側、３は室外側、４はドアの貫通した金属製のハンドル角軸、５はハンドル角軸４の一端部（内端部）側４ａに固定された合成樹脂製の内側レバーハンドルである。また、６はドア１の開放側端部の垂直面に固定されたフロント、７はフロント６を基準にして出没するラッチボルトである。
図２及び図３は本発明の主要部を示す各説明図である。本実施例では、内側レバーハンドル（以下、ここでは単に「ハンドル」と称する。）に二個の抜脱防止部材を嵌合した例で説明する。
【０００９】
まず、ハンドル５から説明する。ハンドル５は、図１で示すようにハンドル角軸の一端部側４ａが嵌入する軸穴８を有する円柱状軸部９と、この円柱状軸部９に略直角方向に連設する握り部１０とから成る。図２で示すように、軸部９は、台座１１の断面段差状の嵌合孔１２に嵌合する嵌合軸部１３と、この嵌合軸部１３に連設する大径の連設軸部１４とから成る。
【００１０】
しかして、前記嵌合軸部１３の先端部（先端部寄りの部位も含む）外周壁には、図３で示すように第１被係合部としての嵌合溝１５が形成されている。この嵌合溝１５は、本実施例では、完全な断面凹所形状の溝であり、図２の拡大部分を基準にすると、内壁底面１５ａに交差する左右の対向内周壁面１５ｂ，１５ｂはストレートである。つまり、壁面１５ｂ，１５ｂの左右の角部（稜線部）がアール或いは傾斜状にカットされていない。
【００１１】
また、嵌合軸部１３の先端部外周壁、特に前述した嵌合溝１５の近傍に第２被係合部としての係合溝１６が周設されている。この第２被係合部１６は、本実施例では図２で示すように嵌合軸部１３の先端面１３ａと第１被係合部１５との間の外周壁に形成されているが、その断面形状は第１被係合部１５のそれとは相違し、比較的小さな半円形状の凹所溝である。
【００１２】
次に嵌合軸部１３の第１及び第２被係合部１５，１６にそれぞれ係合する二個の抜脱防止部材について説明する。図４及び図５は、第１被係合部１５に嵌合する第１抜脱防止部材１８を示す各説明図である。この第１抜脱防止部材１８は、合成樹脂材で形成され、材質自体により多少外拡変位可能である。またこの第１抜脱防止部材１８は、全体としてリング状に形成されているが、完全なリングではなく、一部に切欠部１９を有する。したがって、第１抜脱防止部材１８は、厳密には「Ｃ型抜脱防止カラー」とも称されるべきものである。
【００１３】
一方、図６及び図７は、嵌合軸部１３の先端部に嵌着する第２抜脱防止部材２０を示す各説明図である。この第２抜脱防止部材２０は、本実施例では図３又は図７で示すように完全な筒状体であり、第１抜脱防止部材１８と同様に合成樹脂材で出来ている。
【００１４】
図７を基準にすると、筒状の第２抜脱防止部材２０の内部は、断面段差状に形成されている。しかして、２１は一端部側に形成され、かつＣ型の第１抜脱防止部材１８に外嵌合する環状規制部で、この環状規制部２１の内径寸法は、第１抜脱防止部材１８が外拡変位しないように該第１抜脱防止部材の外径寸法を考慮して設定されている。望ましくは、環状規制部２１の内径寸法は、環状規制部２１の内周壁２１ａが第１抜脱防止部材１８の外周壁１８ａに当接するように設定すべきである。また２２は前記大径の内周壁２１ａに段差状に連設する小径の内周壁に前記第２被係合部１６に係合する環状小突起２３を有する環状係合部である。
【００１５】
次に、図１に示すその他の部材について簡単に説明する。３０は台座１１の鍔部に外嵌合する押え板で、この押え板３０は、台座１１の鍔状突起部１１ａと嵌合的に係合し、かつ、内壁面１ａに当接するストッパー部材４０の板状当接壁４１，４１と当接する。また、押え板３０は、ストッパー部材４０に形成された透孔４２，４２と符合するネジ用貫通孔３１，３１を有する。ストッパー部材４０は、前記押え板３０を介して貫通孔３１，３１並びに透孔４２，４２を貫通する複数個の固着具３２，３２により所定位置に固定される。なお、３３は中心部に嵌合孔を有するキャップ状内側飾りカバーである。
【００１６】
上記構成に於いては、ハンドル角軸４の一端部側４ａにハンドル５を固定した後に、まず、第１抜脱防止部材１８を嵌合軸部１３の第１被係合部（環状溝）１５に嵌める。第１抜脱防止部材１８は切欠部１９を有し、かつ、合成樹脂材で出来ているから、嵌め込みの際に材質自体の弾性力により若干外拡変位するが、第１被係合部１５に嵌まると、その復帰力により該第１被係合部にキチンとフイットする。
次に第２抜脱防止部材２０を嵌合軸部１３の先端面１３ａ側から入れるようにして前記第１抜脱防止部材１８に外嵌合する。この場合樹脂の弾性力を利用して嵌めるが、図１及び図２で示すように、第２抜脱防止部材２０の小突起２３がハンドル５の第２被係合部（係合溝）１６に係合すると、環状規制部２１が第１抜脱防止部材１８にピッタリと外嵌合する。
【００１７】
【実施例】
本実施例では、第１抜脱防止部材１８は一部に切欠部１９を有するが、この切欠部１９はスリット（切り込み）状であっても良い。また、合成樹脂製の第２抜脱防止部材２０の外周壁は、台座１１の嵌合孔１２に嵌め込んだ際に、嵌合孔１２を形成する内周壁に摺接するので、第２抜脱防止部材２０にも一部に切欠部を形成し、かつ材質自体の弾性力により外拡変位可能なリング状の部材としても良い。なお、係合部ないし被係合部を環状的（例えば小突起２３を周方向に複数個配設する。）にすることは、均等事項と言える。
【００１８】
【発明の効果】
以上の説明から明らかなように、本発明にあっては、次に列挙するような効果がある。
（１）ハンドルの嵌合軸部の外周壁に形成された嵌合溝１５に嵌合する抜脱防止部材は、一部に切欠部を有し、かつ、材質自体の弾性力により外拡変位可能なので、嵌合の際に割れ難い。
（２）第１抜脱防止部材１８に対し、第２抜脱防止部材２０が、ハンドルの嵌合軸部に係合した状態で環状規制部が第１抜脱防止部材１８に外嵌合するので、ハンドルはより一層抜けなくなる。
【図面の簡単な説明】
図１乃至図７は本発明の第１実施例を示す各説明図。
【図１】ハンドルとハンドル角軸の結合状態を示す平面から見た概略説明図。
【図２】主要部の拡大説明図。
【図３】主要部を分解斜視図。
【図４】第１抜脱防止部材の正面図。
【図５】図４の５−５線断面図。
【図６】第２抜脱防止部材の正面図。
【図７】図６の７−７線断面図。
【符号の説明】
１…ドア、４…ハンドル角軸、５…レバーハンドル、６…フロント、８…軸穴、１１…台座、１２…嵌合孔、１３…嵌合軸部、１３ａ…先端面、１４…連設軸部、１５…第１被係合部（嵌合溝）、１６…第２被係合部（係合溝）、１８…第１抜脱防止部材、１９…切欠部、２０…第２抜脱防止部材、２１…環状規制部、２２…環状係合部、２３…小突起、４０…ストッパー部材。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure for preventing a lever handle of a door from being pulled out.
[0002]
[Prior art]
The handle inside and outside the door is integrally connected via a rod-like handle angular axis. The handle is generally referred to as a “lever handle” and includes a shaft portion having a fitting square hole to be fitted to an end portion of a handle shaft having a square cross section, and a handle portion provided in a lateral direction to the shaft portion. The handle is formed in a plane L shape as a whole.
[0003]
Conventionally, the structure for preventing the lever handle of the door from coming off has been formed by forming an annular groove having a recessed section in the outer peripheral wall of the shaft portion of the lever handle to be fitted into the fitting hole of the base, and making the circular groove made of synthetic resin in the annular groove. A stop collar was fitted. This prevents the lever handle from falling off.
[0004]
However, although the retaining collar is perfectly ring-shaped (circular), the retaining collar is forcibly inserted by utilizing the elastic force of the resin, so that the retaining collar sometimes breaks. In addition, assuming that the circular retaining collar once fitted in the annular groove is removed, the left and right corners (ridge line portions) of the annular groove are formed in “smooth taper surfaces”. The lever handle was easy to come off.
[0005]
[Problems to be solved by the invention]
In view of the problems of the conventional examples as described above, the first object of the present invention is to prevent the removal prevention member from being broken when fitted. The second purpose is to prevent the lever handle from coming off the base easily or even more. The third object is to achieve the first and second objects by reducing the number of parts.
[0006]
[Means for Solving the Problems]
The lever handle pull-out preventing structure according to the present invention has one end portion of the handle angular shaft 4 which is fitted into the fitting hole 12 having a stepped cross section of the base 11 fixed to one side of the door 1 and penetrates the fitting hole. On the outer peripheral wall of the shaft portion 13 of the lever handle having the shaft hole 8 into which the side 4a is fitted, a fitting groove 15 having a cross-sectional channel shape as a first engaged portion is provided. An engaging groove 16 as a second engaged portion is provided in the vicinity, and the fitting groove 15 has a notch portion 19 in a part thereof and is made of a synthetic resin that can be displaced outwardly by the elastic force of the material itself. The ring-shaped first removal prevention member 18 is fitted so as to be locked to the stepped surface of the fitting hole 12 , and on the other hand, there is an annular restricting portion 21 that is fitted outside the first removal prevention member 18. And a second removal preventing member 20 having a small projection 23 engaged with the engagement groove 16 on the inner peripheral wall is fitted with the fitting shaft portion 1. Characterized in that fitted to the tip portion.
[0007]
In the above configuration, the second removal preventing member 20 is a ring-shaped synthetic resin member that can be displaced outwardly by the elastic force of the material itself .
[0008]
DETAILED DESCRIPTION OF THE INVENTION
First, FIG. 1 shows an example of an embodiment of the present invention as viewed from above. In FIG. 1, 1 is a door, 1a is an inner wall surface of the door, and 1b is an outer wall surface of the door. Therefore, 2 is the indoor side, 3 is the outdoor side, 4 is a metal handle angular shaft through which the door penetrates, and 5 is a synthetic resin inner side fixed to one end (inner end) side 4a of the handle angular shaft 4 It is a lever handle. Reference numeral 6 denotes a front fixed to the vertical surface of the opening side end of the door 1, and 7 denotes a latch bolt that protrudes and protrudes with respect to the front 6.
2 and 3 are explanatory views showing the main part of the present invention. In the present embodiment, an example in which two pull-out prevention members are fitted to an inner lever handle (hereinafter simply referred to as “handle”) will be described.
[0009]
First, the handle 5 will be described. As shown in FIG. 1, the handle 5 includes a cylindrical shaft portion 9 having a shaft hole 8 into which one end side 4 a of the handle angular shaft is fitted, and a grip portion 10 that is connected to the cylindrical shaft portion 9 in a substantially perpendicular direction. It consists of. As shown in FIG. 2, the shaft portion 9 includes a fitting shaft portion 13 that fits into the fitting hole 12 having a stepped cross section of the pedestal 11, and a large-diameter continuous shaft that is connected to the fitting shaft portion 13. Part 14.
[0010]
Therefore, a fitting groove 15 as a first engaged portion is formed in the outer peripheral wall of the tip end portion (including the portion near the tip portion) of the fitting shaft portion 13 as shown in FIG. In the present embodiment, the fitting groove 15 is a groove having a perfect recess shape, and the left and right opposing inner peripheral wall surfaces 15b and 15b intersecting the inner wall bottom surface 15a are straight on the basis of the enlarged portion of FIG. It is. That is, the left and right corner portions (ridge line portions) of the wall surfaces 15b and 15b are not cut into a round shape or an inclined shape.
[0011]
Further, an engaging groove 16 as a second engaged portion is provided around the outer peripheral wall of the distal end portion of the fitting shaft portion 13, particularly in the vicinity of the fitting groove 15 described above. In the present embodiment, the second engaged portion 16 is formed on the outer peripheral wall between the distal end surface 13a of the fitting shaft portion 13 and the first engaged portion 15 as shown in FIG. The cross-sectional shape is different from that of the first engaged portion 15 and is a relatively small semicircular recess groove.
[0012]
Next, two pull-out prevention members that engage with the first and second engaged portions 15 and 16 of the fitting shaft portion 13 will be described. 4 and 5 are each explanatory views showing the first removal preventing member 18 fitted to the first engaged portion 15. The first removal preventing member 18 is made of a synthetic resin material, and can be slightly expanded and displaced by the material itself. The first removal preventing member 18 is formed in a ring shape as a whole, but is not a complete ring but has a notch 19 in a part thereof. Therefore, strictly speaking, the first removal preventing member 18 should be referred to as a “C-type removal preventing collar”.
[0013]
On the other hand, FIG. 6 and FIG. 7 are each explanatory views showing the second removal preventing member 20 fitted to the distal end portion of the fitting shaft portion 13. In this embodiment, the second removal preventing member 20 is a complete cylindrical body as shown in FIG. 3 or FIG. 7 and is made of a synthetic resin material in the same manner as the first removal preventing member 18.
[0014]
With reference to FIG. 7, the inside of the cylindrical second removal preventing member 20 is formed in a stepped shape in cross section. Thus, 21 is an annular restricting portion which is formed on one end side and is fitted to the C-shaped first removal preventing member 18, and the inner diameter dimension of the annular restricting portion 21 is the first removal preventing member 18. Is set in consideration of the outer diameter of the first removal preventing member so as not to expand outwardly. Desirably, the inner diameter dimension of the annular restricting portion 21 should be set so that the inner peripheral wall 21 a of the annular restricting portion 21 contacts the outer peripheral wall 18 a of the first removal preventing member 18. Reference numeral 22 denotes an annular engagement portion having an annular small protrusion 23 that engages with the second engaged portion 16 on a small-diameter inner peripheral wall that is provided in a stepped manner on the large-diameter inner peripheral wall 21a.
[0015]
Next, other members shown in FIG. 1 will be briefly described. Reference numeral 30 denotes a presser plate that is externally fitted to the flange portion of the pedestal 11. The presser plate 30 is engaged with the hook-shaped protrusion portion 11a of the pedestal 11 in a fitting manner, and is a stopper member 40 that contacts the inner wall surface 1a. The plate-like abutting walls 41 and 41 abut. The presser plate 30 also has screw through holes 31 and 31 that coincide with the through holes 42 and 42 formed in the stopper member 40. The stopper member 40 is fixed at a predetermined position by a plurality of fixing tools 32 and 32 passing through the through holes 31 and 31 and the through holes 42 and 42 through the pressing plate 30. Reference numeral 33 denotes a cap-shaped inner decorative cover having a fitting hole at the center.
[0016]
In the above configuration, after the handle 5 is fixed to the one end side 4a of the handle angular shaft 4, the first removal preventing member 18 is first connected to the first engaged portion (annular groove) of the fitting shaft portion 13. Fit to 15. Since the first removal preventing member 18 has the notch 19 and is made of a synthetic resin material, it is slightly expanded outwardly due to the elastic force of the material itself when fitted, but the first engaged portion 15 When it fits in, it fits into the 1st to-be-engaged part with the return force.
Next, the second removal preventing member 20 is externally fitted to the first removal preventing member 18 so as to be inserted from the front end surface 13 a side of the fitting shaft portion 13. In this case, the elastic force of the resin is used for fitting, but as shown in FIGS. 1 and 2, the small protrusion 23 of the second removal preventing member 20 is the second engaged portion (engagement groove) 16 of the handle 5. When engaged, the annular restricting portion 21 is fitted to the first removal preventing member 18 perfectly.
[0017]
【Example】
In the present embodiment, the first removal preventing member 18 has a notch portion 19 in part, but the notch portion 19 may be slit (notched). Further, since the outer peripheral wall of the second pullout preventing member 20 made of synthetic resin is slidably contacted with the inner peripheral wall forming the fitting hole 12 when fitted into the fitting hole 12 of the pedestal 11, The prevention member 20 may also be a ring-shaped member that has a notch partly formed and can be displaced outwardly by the elastic force of the material itself. In addition, it can be said that it is an equivalent matter to make an engaging part thru | or an engaged part cyclically (for example, the plurality of small protrusions 23 are arranged in the circumferential direction).
[0018]
【The invention's effect】
As is clear from the above description, the present invention has the following effects.
(1) The removal preventing member fitted in the fitting groove 15 formed on the outer peripheral wall of the fitting shaft portion of the handle has a notch portion in part, and the outer expansion displacement due to the elastic force of the material itself. Because it is possible, it is difficult to break when mating.
(2) With respect to the first removal preventing member 18, the annular restriction portion is externally fitted to the first removal preventing member 18 in a state where the second removal preventing member 20 is engaged with the fitting shaft portion of the handle. As a result, the handle is further prevented from coming off.
[Brief description of the drawings]
1 to 7 are explanatory views showing a first embodiment of the present invention.
FIG. 1 is a schematic explanatory view seen from a plane showing a coupling state of a handle and a handle angular axis.
FIG. 2 is an enlarged explanatory view of a main part.
FIG. 3 is an exploded perspective view of a main part.
FIG. 4 is a front view of a first removal preventing member.
5 is a cross-sectional view taken along line 5-5 of FIG.
FIG. 6 is a front view of a second removal preventing member.
7 is a cross-sectional view taken along line 7-7 in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Door, 4 ... Handle | steering-wheel axis | shaft, 5 ... Lever handle, 6 ... Front, 8 ... Shaft hole, 11 ... Base, 12 ... Fitting hole, 13 ... Fitting shaft part, 13a ... Tip surface, 14 ... Consecutive arrangement Shaft portion, 15 ... first engaged portion (fitting groove), 16 ... second engaged portion (engaging groove), 18 ... first removal preventing member, 19 ... notch portion, 20 ... second removal Detachable prevention member, 21 ... annular restricting portion, 22 ... annular engaging portion, 23 ... small projection, 40 ... stopper member.

Claims

A shaft hole 8 is fitted into the fitting hole 12 having a stepped cross section of the pedestal 11 fixed to one side of the door 1 and into which the one end side 4a of the handle angular shaft 4 passing through the fitting hole is fitted. A fitting groove 15 having a cross-sectional channel shape as a first engaged portion is provided around the outer peripheral wall of the shaft portion 13 of the lever handle, and a second engaged portion is provided in the vicinity of the fitting groove 15. A ring-shaped first removal preventing member 18 made of a synthetic resin that has an engagement groove 16 and has a notch 19 in a part of the engagement groove 15 and can be displaced outwardly by the elastic force of the material itself. Is fitted to the stepped surface of the fitting hole 12, and has an annular restricting portion 21 that is fitted to the first removal preventing member 18 and the engagement groove 16 is formed on the inner peripheral wall. A second removal preventing member 20 having a small protrusion 23 that engages with the fitting shaft portion 13 is fitted to the distal end portion of the fitting shaft portion 13. It pulled out prevention structure of over handle.

2. The structure for preventing the removal of a lever handle according to claim 1, wherein the second removal preventing member 20 is a ring-shaped synthetic resin member that can be displaced outwardly by the elastic force of the material itself.