JP7261976B2 - gate - Google Patents

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JP7261976B2
JP7261976B2 JP2018166309A JP2018166309A JP7261976B2 JP 7261976 B2 JP7261976 B2 JP 7261976B2 JP 2018166309 A JP2018166309 A JP 2018166309A JP 2018166309 A JP2018166309 A JP 2018166309A JP 7261976 B2 JP7261976 B2 JP 7261976B2
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caster
mounting shaft
holder
leaf spring
door
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JP2020037364A (en
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珠代 島田
純平 松田
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Sankyo Tateyama Inc
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Sankyo Tateyama Inc
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Description

本発明は、門扉に関する。 The present invention relates to gates .

従来の伸縮門扉は、引手框の下端部と中間の縦桟の下端部とにキャスターが設けてあり、開閉時にキャスターの車輪が地面の上を転動する（例えば、非特許文献１参照）。従来の伸縮門扉に用いられているキャスターはダンパー機構を有しておらず、図７に示すように、地面の上に石などの障害物９１があると、キャスター９０が障害物９１に当たってストップしてしまい、開閉に支障が出ることがあった。 A conventional telescoping gate has casters at the lower end of the handle frame and the lower end of the middle vertical beam, and the wheels of the casters roll on the ground when opening and closing (see, for example, Non-Patent Document 1). Casters used in conventional telescoping gates do not have a damper mechanism, and as shown in FIG. The opening and closing of the door was sometimes hindered.

三協立山株式会社 三協アルミ社発行のカタログ「エクステリア 総合カタログ」（カタログＮｏ．ＳＴＸ１１７５Ａ ＫＹ．１８．０２－３０００）、２０１８年２月、ｐ．１２５７Sankyo Tateyama Co., Ltd. Catalog issued by Sankyo Aluminum Co., Ltd. "Exterior General Catalog" (Catalog No. STX1175A KY.18.02-3000), February 2018, p. 1257

本発明は以上に述べた実情に鑑み、石などの障害物があっても支障なく開閉することのできる門扉の提供を目的とする。 SUMMARY OF THE INVENTION It is an object of the present invention to provide a gate that can be opened and closed without hindrance even if there is an obstacle such as a stone.

上記の課題を達成するために請求項１記載の発明による門扉は、扉体と、扉体に取付けたキャスターとを備え、キャスターは、取付軸とケースとホルダと車輪と板バネを備え、ケースは、取付軸の下端部に連結して設けてあり、一対の側壁と、側壁間に取付けた軸を有し、車輪は、ホルダに軸支してあり、ホルダは、取付軸の下方に位置し、取付軸に対して進行方向後側にずれた位置に車輪の軸を有するとともに、ケースの側壁間に取付けた軸をホルダの側壁に設けた孔に遊嵌してあり、板バネは、屈曲しており、一方の片が取付軸の下に取付けてあり、他方の片がホルダの上面に取付けてあり、屈曲部が取付軸に対して進行方向前側に位置しており、車輪を下向きに付勢していることを特徴とする。 In order to achieve the above object, the gate according to the invention of claim 1 comprises a door body and a caster attached to the door body, the caster comprises a mounting shaft, a case, a holder, a wheel and a leaf spring, and a case is connected to the lower end of the mounting shaft and has a pair of side walls and a shaft mounted between the side walls; The wheel shaft is positioned rearward in the traveling direction with respect to the mounting shaft. , one piece is attached to the bottom of the mounting shaft and the other piece is attached to the upper surface of the holder, the bent portion is located on the front side of the mounting shaft in the direction of travel , and the wheel is It is characterized by being biased downward .

請求項１記載の発明による門扉は、キャスターの取付軸とホルダの間に板バネを設けたので、板バネが撓むことで地面の凹凸を吸収し、石などの障害物があってもキャスターが障害物を乗り越えることができるので、支障なく開閉することができる。板バネが取付軸の真下にあることで、荷重を直接受けやすい上、板バネの屈曲部が取付軸に対して進行方向前側に位置していることで、車輪からの衝撃力が進行方向後側に逃げやすいため、走行性が良い。また、ホルダを板バネでつないだだけの簡単な構造のため、キャスターをコンパクトにでき、且つ容易に安価に作ることができる。 In the gate according to the first aspect of the invention, since the leaf spring is provided between the mounting shaft of the caster and the holder, the deflection of the leaf spring absorbs the unevenness of the ground, and even if there is an obstacle such as a stone, the caster can be moved. can overcome obstacles and can be opened and closed without hindrance . Since the leaf spring is directly below the mounting shaft, it is easy to receive the load directly, and since the bent part of the leaf spring is located on the front side of the mounting shaft in the direction of travel, the impact force from the wheel is transferred to the rear of the direction of travel. Because it is easy to escape to the side, running performance is good . Also, because of the simple structure in which the holders are connected by leaf springs, the casters can be made compact and can be manufactured easily and inexpensively.

本発明に係る伸縮門扉の一実施形態を示す正面図である。1 is a front view showing an embodiment of a telescopic gate according to the present invention; FIG. （ａ）は同伸縮門扉の引手框の下部に取付けられるキャスターの平面図、（ｂ）は同キャスターの正面図、（ｃ）は同キャスターの側面図である。(a) is a plan view of a caster attached to the lower part of the handle frame of the telescopic gate, (b) is a front view of the caster, and (c) is a side view of the caster. （ａ）は引手框に設けた施錠装置のカマが門柱の受けと係合した状態を示す横断面図であり、（ｂ）は施錠装置のカマが門柱の受けから抜けるときの状態を示す横断面図であり、（ｃ）は施錠装置のカマが門柱の受けに係合するときの状態を示す横断面図である。(a) is a transverse cross-sectional view showing a state in which the hook of the locking device provided on the door frame is engaged with the gate post receptacle; It is a side view, and (c) is a cross-sectional view showing a state when the sickle of the locking device is engaged with the receptacle of the gatepost. （ａ）は戸当り門柱の吊元側の側面図であり、（ｂ）は引手框の戸先側の側面図である。(a) is a side view of the suspension side of the doorstop gatepost, and (b) is a side view of the door tip side of the door frame. 引手框の下部のキャスターの正面図であって、（ａ）はキャスター単品（無負荷時）の状態、（ｂ）は扉体に取付けた状態、（ｃ）は障害物を乗り越えるときの状態を示す。It is a front view of the caster at the bottom of the handle frame, (a) is the state of the caster alone (no load), (b) is the state attached to the door, and (c) is the state when overcoming an obstacle. show. 本発明に係るキャスターの他の実施形態を示す正面図である。Fig. 10 is a front view showing another embodiment of a caster according to the present invention; 従来のキャスターの正面図であって、障害物に当たってストップした状態を示す。It is a front view of a conventional caster, showing a state in which it hits an obstacle and stops.

以下、本発明の実施の形態を図面に基づいて説明する。図１～４は、本発明の門扉の一実施形態である伸縮門扉を示している。本伸縮門扉は、道路と敷地の境界に設置されるものであり、図１に示すように、左右方向に間隔をおいて地面から立設した吊元門柱１４及び戸当り門柱５と、引手框２と吊元框１５と複数の縦桟１６，１６，…をパンタグラフ状のリンク１７で連結し、左右方向に伸縮自在に構成された扉体１を備える。扉体１は、吊元框１５が吊元門柱１４に蝶番（図示省略）で連結してあり、引手框２には開閉操作のための引手１８と施錠装置１９が設けてある。引手框２の下端部と中間の縦桟１６の下端部とには、キャスター（自在キャスター）３，９０が設けてある。引手框２の下端部に設けたキャスター３は、後述するように板バネ４を内蔵するダンパー機構付きのキャスターであり、中間の縦桟１６の下端部に設けたキャスター９０は、板バネを有しない従来どおりのキャスターである。 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 4 show a telescoping gate that is one embodiment of the gate of the present invention. This telescopic gate is installed on the boundary between a road and a site. As shown in FIG. 2, a suspension frame 15, and a plurality of vertical beams 16, 16, . In the door 1, a suspension frame 15 is connected to a suspension gatepost 14 by a hinge (not shown), and a handle 18 and a locking device 19 are provided for opening and closing the door frame 2. As shown in FIG. Casters (swivel casters) 3 and 90 are provided at the lower end of the handle frame 2 and the lower end of the intermediate vertical beam 16 . A caster 3 provided at the lower end of the handle frame 2 is a caster with a damper mechanism that incorporates a plate spring 4 as described later, and a caster 90 provided at the lower end of the intermediate vertical beam 16 has a plate spring. It is a caster as before.

図２は、引手框２の下端部に取付けられるキャスター３を示している。本キャスター３は、ボルトよりなる取付軸８と、取付軸８の下端部が連結されたケース２１と、ケース２１の内側に設けたホルダ９と、ホルダ９に回転自在に軸支した車輪１０と、ケース２１とホルダ９とを繋ぐ板バネ４を有している。
ケース２１は、上壁２２と一対の側壁２３，２３とを備え、上壁２２の略中央位置に取付軸８の下端部を取付けてある。取付軸８の下端部と上壁２２との間にはベアリング２４が介在しており、取付軸８に対してケース２１が回転自在となっている。側壁２３，２３は、進行方向後側の下部が斜めに形成してある。
ホルダ９は、取付軸８の下方に位置しており、上壁２５と一対の側壁２６，２６を有しており、側壁２６，２６はケース２１の斜めの縁２７から進行方向後側に向けて突出し、その先端部に車輪１０の軸１１が設けてある。車輪の軸１１は、取付軸８に対して進行方向後側にずれた位置にある。
板バネ４は、鋭角に曲げてあって、屈曲部２８が取付軸８に対して進行方向前側に位置している。板バネ４は、一方の片１２が取付軸８の真下のケース２１の上壁２２の下面にリベット２９で取付けてあり、他方の片１３がホルダ９の上面にリベット２９で取付けてある。
ケース２１の側壁２３，２３間には軸３０が取付けてあり、ホルダ９の側壁２６，２６には軸３０の径よりも大きい円形の孔３１が設けてあり、その孔３１に軸３０を通すことでホルダ９の可動範囲を規制している。板バネ４は、図２（ｂ）に示すように、ホルダ側壁２６の孔３１の斜め上側の縁に軸３０が当接しており、車輪１０は板バネ４により常時下向きに付勢されている。 FIG. 2 shows the caster 3 attached to the lower end of the handle frame 2. As shown in FIG. The caster 3 includes a mounting shaft 8 made of a bolt, a case 21 to which the lower end of the mounting shaft 8 is connected, a holder 9 provided inside the case 21, and a wheel 10 rotatably supported by the holder 9. , and a plate spring 4 connecting the case 21 and the holder 9 .
The case 21 has an upper wall 22 and a pair of side walls 23 , 23 , and the lower end of the mounting shaft 8 is attached to the substantially central position of the upper wall 22 . A bearing 24 is interposed between the lower end of the mounting shaft 8 and the upper wall 22 so that the case 21 is rotatable with respect to the mounting shaft 8 . The side walls 23, 23 are formed obliquely at the rear side in the traveling direction.
The holder 9 is positioned below the mounting shaft 8 and has a top wall 25 and a pair of side walls 26, 26. The side walls 26, 26 extend from an oblique edge 27 of the case 21 toward the rear in the traveling direction. A shaft 11 of a wheel 10 is provided at the tip of the protruding portion. The wheel shaft 11 is shifted rearward in the traveling direction with respect to the mounting shaft 8 .
The leaf spring 4 is bent at an acute angle, and the bent portion 28 is positioned forward in the traveling direction with respect to the mounting shaft 8 . One piece 12 of the leaf spring 4 is attached to the lower surface of the upper wall 22 of the case 21 just below the mounting shaft 8 with a rivet 29 , and the other piece 13 is attached to the upper surface of the holder 9 with a rivet 29 .
A shaft 30 is attached between the side walls 23, 23 of the case 21, and a circular hole 31 larger than the diameter of the shaft 30 is provided in the side walls 26, 26 of the holder 9, and the shaft 30 is passed through the hole 31. This restricts the movable range of the holder 9 . As shown in FIG. 2(b), the leaf spring 4 has a shaft 30 in contact with the oblique upper edge of the hole 31 of the holder side wall 26, and the wheel 10 is constantly urged downward by the leaf spring 4. .

このキャスター３は、ボルトよりなる取付軸８を引手框２の下端部に形成された雌ねじ孔に捩じ込み、取付軸８の出入りを調整した上で、取付軸８と螺合するナット３２を引手框２の下端に圧着するように締め付けることで、引手框２の下部に高さ調整可能に取付けられる。
扉体１を最も縮めた状態では、キャスター３にはほとんど負荷がかかっておらず、図５（ａ）と同じ状態であり、扉体１を伸ばすにつれて引手框２からキャスター３に負荷がかかり、その負荷により図５（ｂ）に示すように板バネ４が撓み、扉体１の下端が略水平に保持される。キャスター３の走行中、車輪が石などの障害物３３に当たると、図５（ｃ）に示すように、板バネ４がさらに撓んで車輪１０が障害物３３を乗り越える。その際、キャスター３のケース２１上面の高さに変化はなく、引手框２の上下動が抑えられるので、振動や騒音も抑えられる。本キャスター３は、板バネ４が取付軸８の真下にあることで、荷重を直接受けやすく、衝撃吸収性に優れる。また、板バネ４の屈曲部２８がキャスター３の進行方向前側に位置していることで、キャスター３が障害物３３を乗り越える際、車輪１０を押し上げる力が進行方向後側に逃げやすいので、走行性が良い。 This caster 3 has a mounting shaft 8 made of a bolt screwed into a female threaded hole formed in the lower end of the handle frame 2, and after adjusting the movement of the mounting shaft 8, a nut 32 screwed with the mounting shaft 8 is screwed. By tightening so as to be crimped to the lower end of the pull frame 2, it is attached to the lower part of the pull frame 2 so as to be adjustable in height.
When the door 1 is contracted to the maximum, almost no load is applied to the casters 3, which is the same state as in FIG. 5(a). Due to the load, the leaf spring 4 bends as shown in FIG. 5(b), and the lower end of the door 1 is held substantially horizontally. When the wheel hits an obstacle 33 such as a stone while the caster 3 is running, the leaf spring 4 is further bent and the wheel 10 climbs over the obstacle 33 as shown in FIG. 5(c). At that time, the height of the upper surface of the case 21 of the caster 3 does not change, and the vertical movement of the handle frame 2 is suppressed, so that vibration and noise are also suppressed. Since the leaf spring 4 is directly below the mounting shaft 8, the caster 3 can easily receive a load directly and has excellent shock absorption. In addition, since the bent portion 28 of the leaf spring 4 is positioned on the front side in the traveling direction of the caster 3, when the caster 3 climbs over the obstacle 33, the force pushing up the wheel 10 tends to escape to the rear side in the traveling direction. Good nature.

上記のバネを有するキャスター３は、キャスター単品（無負荷時）の状態での地面からケース２１上面までの高さＨ（図５（ａ）参照）が、バネを有しないキャスター９０の地面からケース上面までの高さＨ（図７参照）と略同じになっている。したがって、引手框２の下部に取付けるキャスターは、バネを有するもの３とバネを有しないもの９０のうちから選択自在である。既設の伸縮門扉の引手框２の下部に取付けられているバネを有しないキャスター９０を、バネを有するキャスター３に交換することも可能である。 In the caster 3 having the spring, the height H (see FIG. 5(a)) from the ground to the upper surface of the case 21 in the state of the caster alone (unloaded) is the same as the caster 90 without the spring from the ground to the case. It is substantially the same as the height H (see FIG. 7) to the top surface. Therefore, the caster attached to the lower part of the handle frame 2 can be freely selected from the caster 3 with a spring and the caster 90 without a spring. It is also possible to replace the caster 90 having no spring attached to the lower part of the handle frame 2 of the existing telescopic gate with the caster 3 having a spring.

引手框２に設けられる施錠装置１９には、図３と図４（ｂ）に示すように、一対のカマ７，７を有しており、カマ７，７はそれぞれ縦軸３５まわりに回動可能に設けてある。戸当り門柱５には受け６が取付けてあり、受け６は、図４（ａ）に示すように、カマ７，７が係合する孔３６が上下方向に長く設けてある。カマ７，７は、図４（ａ），（ｂ）に示すように、受け６の孔３６の上下方向の略中央に位置している。引手框２の引手１８には、図４（ｂ）に示すように、戸先側に解錠操作用のレバー３４を有している。
図３（ａ）は、伸縮門扉を閉じた状態を示しており、カマ７，７が受け６の孔３６と係合して施錠されている。伸縮門扉を開けるために引手１８に戸先側から手を掛けると、図３（ｂ）に示すように、レバー３４が押し込まれるのに伴ってアーム３８，３８が動き、カマ７，７はアーム３８，３８に押されて縦軸３５，３５まわりに互いに近づく方向に回動し、受け６の孔３６から抜ける。なお、伸縮門扉を閉じる際には、引手１８に吊元側から手を掛けるのでレバー３４は押し込まれず、図３（ｃ）に示すように、カマ７，７の傾斜部３９，３９が受け６の孔３６の側縁に当たることでカマ７，７が縦軸３５，３５まわりに回動して孔３６内に進入し、その後カマ７，７はバネ（図示省略）の力で復帰して図３（ａ）に示すように孔３６と係合する。 As shown in FIGS. 3 and 4(b), the locking device 19 provided on the handle frame 2 has a pair of hooks 7, 7 which rotate about a vertical axis 35, respectively. It is set possible. A receptacle 6 is attached to the doorpost 5, and as shown in FIG. 4(a), the receptacle 6 has vertically elongated holes 36 with which the hooks 7, 7 are engaged. As shown in FIGS. 4(a) and 4(b), the hooks 7, 7 are positioned substantially in the vertical center of the hole 36 of the receiver 6. As shown in FIG. As shown in FIG. 4(b), the handle 18 of the handle frame 2 has a lever 34 for unlocking operation on the door tip side.
FIG. 3(a) shows a state in which the telescopic gate is closed, and the hooks 7, 7 are engaged with the holes 36 of the receiver 6 and locked. When the handle 18 is put on the handle 18 to open the telescoping gate, as shown in FIG. Pushed by 38 , 38 , it rotates around vertical shafts 35 , 35 in a direction toward each other, and comes out of the hole 36 of the receiver 6 . When the telescopic gate is closed, the lever 34 is not pushed in because the handle 18 is held from the hanging side, and the inclined portions 39, 39 of the hooks 7, 7 are held by the catch 6 as shown in FIG. 3(c). By hitting the side edge of the hole 36, the hooks 7, 7 rotate about the vertical shafts 35, 35 and enter the hole 36. After that, the hooks 7, 7 are returned by the force of a spring (not shown) and shown in the figure. It engages the hole 36 as shown in 3(a).

以上に述べたように本伸縮門扉は、扉体１の引手框２の下部に設けたキャスター３が接地面の凹凸を吸収するバネ（板バネ）４を有していることで、石などの障害物３３があってもキャスター３が障害物３３を乗り越えることができるので、支障なく開閉することができ、走行時の振動や騒音も抑えられる。
また、引手框２は、縦軸３５まわりに回動して門柱（戸当り門柱）５の受け６に係脱自在なカマ７，７を有し、受け６は、上下方向に設けてあり、カマ７，７は受け６の上下方向の略中央に位置しているので、バネ付きのキャスター３を採用したことで引手框２が多少上下に動いたとしても、施解錠が問題なく行える。
本伸縮門扉は、キャスター３のバネ４は引手框２にかかる荷重によって常時撓んで扉体１の下端を略水平に保持しており、凹凸を通過する際にバネ４がさらに撓むので、バネ４を有しないキャスター９０を用いた場合と同じように扉体１の下端を略水平に保持でき、尚且つ接地面の凹凸による衝撃を吸収してスムーズに開閉できる。
さらに本伸縮門扉は、キャスターが接地面の凹凸を吸収するバネ４を有するもの３と、バネを有しないもの９０のうちから選択自在であり、バネを有するキャスター３は、無負荷状態でバネを有しないキャスター９０と高さＨが略同じであるので、同じ扉体１を用いながら、客先の求めに応じてキャスターをバネ付きのもの３とバネを有しない通常のキャスター９０のどちらかを選択でき、コストを抑えながら客先にアピールするバリエーションを追加できる。また、既設の伸縮門扉のバネを有しないキャスター９０を、バネを有するキャスター３に交換することもできる。 As described above, this telescopic gate has a spring (leaf spring) 4 that absorbs the unevenness of the contact surface of the caster 3 provided at the bottom of the handle frame 2 of the door 1, so that stones and the like can be removed. Even if there is an obstacle 33, the casters 3 can get over the obstacle 33, so that opening and closing can be performed without any trouble, and vibration and noise during traveling can be suppressed.
In addition, the handle frame 2 has hooks 7, 7 that can be freely engaged with and disengaged from a receptacle 6 of a gatepost (gate post) 5 by rotating around a vertical axis 35, and the receptacle 6 is provided in the vertical direction, Since the hooks 7, 7 are positioned substantially in the vertical center of the receiver 6, even if the handle frame 2 slightly moves up and down by adopting the caster 3 with a spring, locking and unlocking can be performed without any problem.
In this telescopic gate, the spring 4 of the caster 3 is always bent by the load applied to the handle frame 2 to hold the lower end of the door 1 substantially horizontally. As in the case of using casters 90 without 4, the lower end of the door 1 can be held substantially horizontally, and the impact caused by the unevenness of the ground surface can be absorbed to enable smooth opening and closing.
In addition, this telescopic gate can be selected from one having a spring 4 whose casters absorb unevenness of the contact surface, and one having no spring 90. The caster 3 having a spring can be selected from the one with a spring 4 in an unloaded state. Since the height H is substantially the same as that of casters 90 without springs, the casters 3 with springs or normal casters 90 without springs can be selected according to the customer's request while using the same door body 1. You can select and add variations that appeal to customers while keeping costs down. Also, the casters 90 without springs of the existing telescoping gate can be replaced with the casters 3 with springs.

引手框２の下部に設けられるキャスター３は、取付軸８とホルダ９の間に板バネ４を設けたので、板バネ４が撓むことで地面の凹凸を吸収し、石などの障害物３３があっても走行可能である。板バネ４が取付軸８の真下にあることで、荷重を直接受けやすい。また、ホルダ９を板バネ４でつないだだけの簡単な構造のため、キャスター３をコンパクトにでき（特に、高さを低く抑えられる）、且つ容易に安価に作ることができる。
板バネ４は、屈曲部２８が取付軸８に対して進行方向前側に位置していることで、車輪１０からの衝撃力が進行方向後側に逃げやすいため、走行性が良い。
さらに本キャスター３は、ケース２１の側壁２３，２３間に設けた軸３０を有し、ホルダ９の側壁２６，２６には、前記軸３０が挿通されてホルダ９の可動範囲を規制する孔３１を有しているので、板バネ４が撓みすぎたり、板バネ４がねじれたりするのを防ぎ、故障を防止できる。
本伸縮門扉は、当該キャスター３を備えることで、石などの障害物があってもキャスター３が障害物３３を乗り越えることができるので、支障なく開閉することができる。また、キャスター３をコンパクトにできるので、扉体１の下端と地面との間の隙間をなるべく小さくできる。 Since the caster 3 provided at the lower part of the handle frame 2 is provided with the leaf spring 4 between the mounting shaft 8 and the holder 9, the deflection of the leaf spring 4 absorbs the unevenness of the ground and prevents obstacles 33 such as stones. It is possible to run even if there is Since the leaf spring 4 is directly below the mounting shaft 8, it can easily receive the load directly. Moreover, because of the simple structure in which the holders 9 are connected by the plate springs 4, the casters 3 can be made compact (in particular, the height can be kept low), and can be easily manufactured at low cost.
Since the bent portion 28 of the leaf spring 4 is located on the front side in the traveling direction with respect to the mounting shaft 8, the impact force from the wheel 10 can easily escape to the rear side in the traveling direction.
Further, the caster 3 has a shaft 30 provided between the side walls 23, 23 of the case 21, and a hole 31 through which the shaft 30 is inserted through the side walls 26, 26 of the holder 9 to regulate the movable range of the holder 9. , it is possible to prevent the leaf spring 4 from being excessively bent or twisted, thereby preventing failure.
By providing the caster 3, the telescopic gate can overcome the obstacle 33 even if there is an obstacle such as a stone, so that the door can be opened and closed without any trouble. Moreover, since the caster 3 can be made compact, the gap between the lower end of the door 1 and the ground can be made as small as possible.

図６（ａ），（ｂ）は、本発明に係るキャスター３の他の実施形態を示している。図６（ａ）のものは、ホルダ９の側壁２６，２６に上方に向けて突出する当て部３７を設け、板バネ４が撓んだときに当て部３７がケース２１の上壁２２の下面に当たることで、ホルダ９の可動範囲を規制している。図６（ｂ）のものは、ホルダ９の側壁２６，２６に外側に向けて突出する当て部３７を設け、板バネ４が撓んだときに当て部３７がケース２１の側壁２３，２３の斜めの縁２７に当たることで、ホルダ９の可動範囲を規制している。
これらの実施形態によれば、ケース２１の軸３０が不要になるため、より一層容易に安価に作ることができる。 6(a) and (b) show another embodiment of the caster 3 according to the present invention. 6(a), the side walls 26, 26 of the holder 9 are provided with abutting portions 37 protruding upward, and when the plate spring 4 is bent, the abutting portions 37 contact the lower surface of the upper wall 22 of the case 21. The movable range of the holder 9 is regulated by hitting the . 6(b), the side walls 26, 26 of the holder 9 are provided with abutting portions 37 protruding outward, and when the plate spring 4 is bent, the abutting portions 37 are positioned between the side walls 23, 23 of the case 21. The movable range of the holder 9 is regulated by contacting the oblique edge 27 .
According to these embodiments, since the shaft 30 of the case 21 is not required, it can be manufactured more easily and inexpensively.

本発明は以上に述べた実施形態に限定されない。板バネの形状や向きは、適宜変更することができる。板バネは、屈曲部が進行方向後側に位置するように設けてもよいが、実施形態のように屈曲部を進行方向前側に位置させると、衝撃吸収性、走行性が向上する。門扉は、扉体が左右方向に伸縮しない引戸門扉であってもよい。本キャスターの用途は特に限定されるものではなく、例えば引戸門扉、台車等に用いることもできる。 The invention is not limited to the embodiments described above. The shape and direction of the leaf spring can be changed as appropriate. The leaf spring may be provided so that the bent portion is located on the rear side in the direction of travel, but if the bent portion is positioned on the front side in the direction of travel as in the embodiment, shock absorption and running performance are improved. The gate may be a sliding door whose door body does not expand and contract in the left-right direction. The use of the present caster is not particularly limited, and it can be used, for example, for a sliding door, a trolley, and the like.

１ 扉体
２ 引手框
３ キャスター
４ 板バネ（バネ）
５ 戸当たり門柱（門柱）
６ 受け
７ カマ
８ 取付軸
９ ホルダ
１０ 車輪
１１ 車輪の軸
１２ 一方の片
１３ 他方の片 1 door body 2 handle frame 3 caster 4 plate spring (spring)
5 doorposts (gateposts)
6 receiver 7 hook 8 mounting shaft 9 holder 10 wheel 11 wheel shaft 12 one piece 13 the other piece

Claims (1)

扉体と、扉体に取付けたキャスターとを備え、キャスターは、取付軸とケースとホルダと車輪と板バネを備え、ケースは、取付軸の下端部に連結して設けてあり、一対の側壁と、側壁間に取付けた軸を有し、車輪は、ホルダに軸支してあり、ホルダは、取付軸の下方に位置し、取付軸に対して進行方向後側にずれた位置に車輪の軸を有するとともに、ケースの側壁間に取付けた軸をホルダの側壁に設けた孔に遊嵌してあり、板バネは、屈曲しており、一方の片が取付軸の下に取付けてあり、他方の片がホルダの上面に取付けてあり、屈曲部が取付軸に対して進行方向前側に位置しており、車輪を下向きに付勢していることを特徴とする門扉。 A door and a caster attached to the door, the caster having a mounting shaft, a case, a holder, a wheel and a leaf spring, the case being connected to the lower end of the mounting shaft, and a pair of side walls. and a shaft mounted between the side walls, the wheel is pivotally supported by a holder, the holder is located below the mounting shaft, and is positioned behind the mounting shaft in the direction of travel. The leaf spring is bent and one piece is attached under the mounting shaft. , and the other piece is attached to the upper surface of the holder, and the bent portion is located forward in the direction of travel with respect to the attachment shaft, and urges the wheel downward .
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JP3087530U (en) 2001-03-23 2002-08-09 株式会社村田 Buffer casters using leaf springs
JP2004019300A (en) 2002-06-18 2004-01-22 Toyo Exterior Co Ltd Hinged gate door opened and closed by turning, having obstacle avoidance free caster
WO2005108122A1 (en) 2004-05-06 2005-11-17 Wanzl Metallwarenfabrik Kg Transport trolley
US20130093155A1 (en) 2010-07-08 2013-04-18 Gray Gong Shock Absorber Structure of Wheelchair Front Fork
CN108068545A (en) 2017-12-15 2018-05-25 宁波市镇海丹发机械科技有限公司 Buffer-type foot wheel carrier

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JPS4711863Y1 (en) * 1967-07-28 1972-05-02
JPS5047155U (en) * 1973-08-27 1975-05-10
JPH1082264A (en) * 1996-09-09 1998-03-31 Koichi Minagawa Expandable uneven space absorption guard caster device during door opening and closing time
JP3094703U (en) * 2002-12-10 2003-07-04 シシクアドクライス株式会社 Caster with shock absorbing function for wheelchairs and walking aids
JP4391510B2 (en) * 2006-10-12 2009-12-24 真悟 西川 Caster and shock axle support mechanism
KR20120007667U (en) * 2011-04-29 2012-11-07 정운석 shock absorb caster

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JP3087530U (en) 2001-03-23 2002-08-09 株式会社村田 Buffer casters using leaf springs
JP2004019300A (en) 2002-06-18 2004-01-22 Toyo Exterior Co Ltd Hinged gate door opened and closed by turning, having obstacle avoidance free caster
WO2005108122A1 (en) 2004-05-06 2005-11-17 Wanzl Metallwarenfabrik Kg Transport trolley
US20130093155A1 (en) 2010-07-08 2013-04-18 Gray Gong Shock Absorber Structure of Wheelchair Front Fork
CN108068545A (en) 2017-12-15 2018-05-25 宁波市镇海丹发机械科技有限公司 Buffer-type foot wheel carrier

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