JPS6116826Y2 - - Google Patents

Description

【考案の詳細な説明】 この考案は、机の天板等を昇降操作する回転ハ
ンドル装置に関し、特に回転操作するアーム部を
非操作時に回転軸側へ折り込み収納することが可
能な回転ハンドルに関するものである。[Detailed description of the invention] This invention relates to a rotary handle device for raising and lowering a desk top plate, etc., and in particular to a rotary handle that allows the arm part for rotating operation to be folded and stored toward the rotating shaft side when not in operation. It is.

机や作業台の天板部等、各種の機器の可動部分
の位置調制を手動操作で行なう回転ハンドルとし
て、回転軸端に回転アームを取付け、該アームの
遊端部に突設した把手部を把持して回転させる構
成のものが知られる。ところが、この種回転ハン
ドルにあつては、取付躯体の種類や取付位置によ
つては突出した回転アームが非操作時に器具や装
置の本来の使用動作に支障をきたしたり、あるい
は近傍を通行時に引掛かつて邪魔になるといつた
問題がある。従つてこの種回転ハンドルでは、非
操作時に回転アーム部の折り畳み等にて支障をき
たさぬ状態とし得る構造が望まれる。 As a rotating handle for manually adjusting the position of movable parts of various devices such as the top of a desk or workbench, a rotating arm is attached to the end of the rotating shaft, and a handle protruding from the free end of the arm is used as a rotating handle. A device configured to be held and rotated is known. However, with this type of rotating handle, depending on the type of mounting frame and the mounting position, the protruding rotating arm may interfere with the intended operation of the instrument or device when not in use, or may get caught when passing by. There is a problem that used to get in the way. Therefore, it is desirable for this type of rotary handle to have a structure that allows the rotary arm portion to be folded up or the like without causing any trouble when not in operation.

この考案は上記要望に対処するためになされた
もので、簡単な構成によつて回転アーム部を回転
軸側へ折り込み可能とすると共に、回転操作時の
回転アーム部の姿勢を安定に維持し得るようにな
した回転ハンドルを提供するものである。 This idea was made in order to meet the above-mentioned needs, and with a simple structure, it is possible to fold the rotating arm part toward the rotating shaft side, and it is also possible to stably maintain the posture of the rotating arm part during rotation operation. The present invention provides a rotary handle made as described above.

以下、この考案を図示実施例に基づいて説明す
る。 This invention will be explained below based on illustrated embodiments.

第１図および第２図はこの考案を学習机に適用
した一実施例を示す。机１は正面視右側にキヤビ
ネツト３を備えた基台２に天板部４がこれに垂設
した左右一対の脚片５，５を介して昇降自在に支
持されている。しかして、キヤビネツト３を構成
する上板３ａの下面の中央寄り隅部には、基台２
に内蔵する適当な伝達機構（図示略）に接続する
回転軸６が机１の前後方向に沿つて配設され、こ
の回転軸６の前端に回転ハンドル７が取付けられ
ている。 Figures 1 and 2 show an embodiment in which this invention is applied to a study desk. The desk 1 is supported by a top plate 4 on a base 2 having a cabinet 3 on the right side as viewed from the front via a pair of left and right legs 5, 5, which are vertically movable up and down. Therefore, a base 2 is located at a corner near the center of the lower surface of the upper plate 3a constituting the cabinet 3.
A rotating shaft 6 connected to a suitable transmission mechanism (not shown) built into the desk 1 is disposed along the front-rear direction of the desk 1, and a rotating handle 7 is attached to the front end of the rotating shaft 6.

回転ハンドル７は、回転軸６に固着された短尺
丸軸状の取付基部８とこれに対して回動自在に連
結された略く字状の回転アーム部９とから構成さ
れ、第２図の実線で示す如く回転アーム部９をキ
ヤビネツト３の前面より前方突出した状態で該ア
ーム部９の遊端に突設した軸状把手９ａを保持し
て回転操作すると共に、非操作時には破線で示す
如く回転アーム部９を取付基部８との連結部分を
中心に反転回動させてキヤビネツト３の上縁部に
設けられた収納凹部１０内へ折り込み収納しうる
ようになされている。 The rotating handle 7 is composed of a short round shaft-shaped mounting base 8 fixed to the rotating shaft 6 and a substantially dogleg-shaped rotating arm 9 rotatably connected to the mounting base 8, as shown in FIG. With the rotary arm 9 protruding forward from the front surface of the cabinet 3, as shown by the solid line, the shaft-like handle 9a protruding from the free end of the arm 9 is held and rotated, and when not in operation, as shown by the broken line. The rotary arm part 9 can be reversely rotated around the connection part with the mounting base part 8 and folded into a storage recess 10 provided at the upper edge of the cabinet 3 for storage.

第３図乃至第６図は回転ハンドル７の細部構造
を示す。取付基部８は、基端側に凹所８ａを備え
ると共に、周側面より先端面へ至る切欠状のテー
パ部８ｂを有し、また先端には軸方向およびテー
パ部８ｂ側の側方へ突出する略長方形厚肉板状の
係合突片１１が突設されている。この係合突片１
１は、側方突出した半部１１ａが厚み方向に２分
されて方形部１２とこれより側方突出長さが短い
略半円形部１３とから２段状に形成され、両部１
２，１３間に段差１４を有する。１５ａは凹所８
ａに嵌入した回転軸６の前端凸部６ａを貫通して
これを固定するための固着ピン（図示略）の挿通
孔である。 3 to 6 show the detailed structure of the rotating handle 7. FIG. The mounting base 8 has a recess 8a on the base end side, and has a notched tapered part 8b extending from the circumferential side to the distal end surface, and the distal end protrudes in the axial direction and laterally on the tapered part 8b side. A substantially rectangular thick plate-shaped engagement protrusion 11 is provided in a protruding manner. This engaging protrusion 1
1, a laterally protruding half part 11a is divided into two in the thickness direction, and is formed in two steps from a square part 12 and a substantially semicircular part 13 having a shorter lateral protruding length.
There is a step 14 between 2 and 13. 15a is recess 8
This is an insertion hole for a fixing pin (not shown) for penetrating and fixing the front end convex portion 6a of the rotating shaft 6 fitted in the rotary shaft 6.

一方、回転アーム部９の基端部９ｂには、取付
基部８の係合突片１１を第３図および第４図の一
点鎖線で示す如く嵌入させる割り溝１６とその奥
底に開口する空所１７とが形成され、且つ空所１
７と外部とを連通する透孔１８が穿設されてい
る。また割り溝１６を構成する両側突片１９，１
９は、取付基部８のテーパ部８ｂに対応する側の
角部分にアール１９ａをつけてある。しかして、
空所１７内にはその開口１７ａに臨む方形先端の
係止爪２０ａと透孔１８に挿通する押軸部２０ｂ
とを一体化した切替部材２０が内填されており、
この切替部材２０は押軸部２０ｂの内端側凹所２
０ｃと空所１７内の凹所１７ｂとの間に装填した
コイルばね２１にて押軸部２０ｂが外方突出する
方向へ常時付勢されている。尚、係止爪２０ａ
は、その厚みが取付基部８の係合突片１１の厚み
の1/2よりやや薄く、且つ先端側が幅広に形成さ
れている。 On the other hand, the base end 9b of the rotating arm portion 9 has a split groove 16 into which the engaging protrusion 11 of the mounting base 8 is inserted as shown by the dashed line in FIGS. 17 is formed, and the void 1
A through hole 18 is bored through which the hole 7 communicates with the outside. Also, the protrusions 19 and 1 on both sides forming the split groove 16
9 has a radius 19a at a corner portion of the mounting base 8 on the side corresponding to the tapered portion 8b. However,
Inside the space 17, there is a locking pawl 20a with a rectangular tip facing the opening 17a, and a push shaft portion 20b inserted into the through hole 18.
A switching member 20 that integrates the
This switching member 20 has a recess 2 on the inner end side of the push shaft portion 20b.
The push shaft portion 20b is constantly biased in the direction in which the push shaft portion 20b projects outward by a coil spring 21 loaded between the push shaft portion 0c and the recess 17b within the space 17. In addition, the locking claw 20a
is slightly thinner than 1/2 of the thickness of the engagement protrusion 11 of the mounting base 8, and is formed wide at the tip side.

上記取付基部８と回転アーム部９とは、割り溝
１６に係合突片１１が嵌入した状態で、中心より
もテーパ部８ｂ側へ偏る位置に穿設したそれぞれ
のピン孔１５ｂ，１５ｃに枢支ピン２２を挿通し
て枢着連結される。 The mounting base 8 and the rotating arm 9 are pivoted into pin holes 15b and 15c, respectively, which are drilled at positions biased toward the tapered portion 8b from the center, with the engaging protrusion 11 fitted into the split groove 16. The support pins 22 are inserted into the support pins 22 to be pivotally connected.

このような回転ハンドル７においては、取付基
部８と回転アーム部９の基端部９ｂとが直線状と
なる回転操作姿勢下では、切替部材２０はコイル
ばね２１の付勢を受けて第６図示の実線で示す如
く押軸部２０ｂが外方突出した位置となり、係止
爪２０ａの方形先端が係合突片１１の方形部１２
側に対接する。しかしてこの対接部分は平担面同
士の接触となつているから、回転アーム部９は枢
支ピン２２を中心とする回動が不能となり、取付
基部８と回転アーム部９とは連結部分でロツクさ
れた一体物として挙動する。従つて、回転ハンド
ル７は横ぶれ等を生じない安定状態で円滑に回転
操作できる。 In such a rotary handle 7, under a rotary operation posture in which the mounting base 8 and the base end 9b of the rotary arm portion 9 are in a straight line, the switching member 20 is biased by the coil spring 21 and rotates as shown in FIG. As shown by the solid line, the push shaft portion 20b is in an outwardly protruding position, and the square tip of the locking pawl 20a is in the square portion 12 of the engagement protrusion 11.
facing the side. However, since the opposing parts of the levers are in contact with each other, the rotating arm part 9 cannot rotate around the pivot pin 22, and the mounting base 8 and the rotating arm part 9 are connected to each other. It behaves as a single body locked with Therefore, the rotary handle 7 can be smoothly rotated in a stable state without causing sideways vibration or the like.

一方、上記操作姿勢下にある回転アーム部９を
折り込んで収納姿勢とするには、第２図示の実線
の如く机１中央側へ向く水平状に保持し、押軸部
２０ｂを押し込んでロツク解除し、この状態で反
転回動させればよい。すなわち、押軸部２０ｂを
コイルばね２１の付勢に抗して押し込むと、第６
図示の一点鎖線の如く係止爪２０ａが係合突片１
１の略半円形部１３側に移行し、円周面と平担面
とが対接することにより回転アーム部９は折り込
み方向へ回動可能となる。尚、この回動過程で
は、係止爪２０ａが段差１４に嵌合して方形部１
２と突片１９との間に挾まれた状態となり、ロツ
ク状態に戻る惧れはなく、従つて回動初期だけ押
軸部２０ｂを指で押さえておけば、後は指を離し
ても支障なく回動操作できる。しかして、折り込
み状態の回転ハンドル７は、第５図示の一点鎖線
で示す如く回転アーム部９の基端部９ｂが取付基
部８のテーパ部８ｂに嵌合し、全体として回転軸
６に対してほぼ直角に配位する収納姿勢となる。
また収納姿勢から操作姿勢とするには、単に回転
アーム部９を引き出して停止するまで回動すれば
よく、停止位置で係合突片１１と係止爪２０ａと
の対接関係に基づいて、切替部材２０がコイルば
ね２１の蓄力によつて自動的にロツク位置に変位
する。 On the other hand, in order to fold the rotary arm part 9 under the above-mentioned operating position to the storage position, hold it in a horizontal position facing the center of the desk 1 as shown by the solid line in the second figure, and push in the push shaft part 20b to release the lock. Then, in this state, it may be rotated in the reverse direction. That is, when the push shaft portion 20b is pushed against the bias of the coil spring 21, the sixth
The locking pawl 20a is connected to the engaging protrusion 1 as shown by the dashed line in the figure.
1 to the substantially semicircular portion 13 side, and the circumferential surface and the flat surface come into contact with each other, so that the rotary arm portion 9 becomes rotatable in the folding direction. In addition, during this rotation process, the locking pawl 20a fits into the step 14 and the square portion 1
2 and the protruding piece 19, and there is no risk of it returning to the locked state.Therefore, if you hold down the push shaft part 20b with your finger during the initial stage of rotation, there will be no problem even if you release your finger afterwards. It can be rotated without any problem. Therefore, the rotating handle 7 in the folded state is such that the base end 9b of the rotating arm portion 9 fits into the tapered portion 8b of the mounting base 8, as shown by the dashed line in FIG. The storage position is almost perpendicular.
In addition, in order to change from the storage position to the operating position, it is sufficient to simply pull out the rotary arm part 9 and rotate it until it stops. The switching member 20 is automatically displaced to the lock position by the stored force of the coil spring 21.

尚、この考案は例示した学習机以外の種々の机
や作業台、その他各種の器具および装置の可動部
分の位置調整用回転ハンドルに適用可能であり、
折りみ状態で取付躯体内に収納しない構造とする
こともできる。また取付基部と回転アーム部との
連結部形状を適宜変更することにより、操作アー
ム部の折り込み角度をより大きく取ることも可能
である。 In addition, this invention can be applied to various desks and work tables other than the illustrated study desk, and to rotary handles for adjusting the position of movable parts of various other instruments and devices.
It is also possible to have a structure in which it is not stored in the mounting frame in a folded state. Furthermore, by appropriately changing the shape of the connecting portion between the mounting base and the rotary arm, it is possible to increase the folding angle of the operating arm.

以上のようにこの考案に係る回転ハンドルは、
回転軸に固着する取付基部とこれに設けた係合突
片に嵌入して枢着する割り溝を備えた回転アーム
部とから構成されるから、非操作時には回転アー
ム部を取付躯体の本来の使用操作や近傍通行に支
障をきたさぬように折り込み状態とすることが可
能である。しかも、上記係合突片の片側半部が厚
み方向に方形部と略半円形部とから２段状に形成
され、また上記回転アーム部に割り溝の奥底に開
口すると共に内部より側方外部を連通する透孔を
備えた空所が形成され、この空所内にその開口に
臨む係止片と上記透孔に貫入する押軸部とを一体
化した切替部材が内填され、且つこの切替部材が
ばね部材により押軸部を外方突出させる方向に付
勢され、これによつて、回転操作姿勢下で上記押
軸部が突出状態になると共に、上記係止爪が係合
突片の方形部側に対接して回転アーム部を取付基
部に対して回動不能にロツクするように構成され
ている。従つて、回転ハンドルの回転操作に際し
て回転アーム部は取付基部に一体化し、安定した
状態で円滑な回転操作が可能となる。一方、上記
回転軸操作姿勢から折り込み姿勢への変換は、押
軸部をばね力に抗して押し込むだけで係止爪が係
合突片の略半円形部側へ移行して前記ロツクが解
除されるため、上記押し込み状態で回転アームを
回転させるという極めて簡単な操作により行な
え、また上記と逆の姿勢変換は折り込み状態の回
転アーム部を単に引き出して回動させるだけで確
実になされる。加えて、上記の取付基部と回転ア
ーム部との連結部分は構造的に極めて簡単である
ため、故障の惧れも少なく、ロツク−ロツク解除
の確実な作動が保証され、耐久性に優れている。 As mentioned above, the rotating handle according to this invention is
It is composed of a mounting base that is fixed to the rotating shaft and a rotating arm that is equipped with a split groove that fits into the engaging protrusion provided on the mounting base and is pivotally attached. It can be folded up so as not to interfere with operation or nearby traffic. Moreover, one half of the engagement protrusion is formed in two steps in the thickness direction from a square part and a substantially semicircular part, and is opened at the bottom of the dividing groove in the rotating arm part, and is opened from the inside to the outside from the side. A cavity is formed with a through hole that communicates with the opening, and a switching member that integrates a locking piece facing the opening and a push shaft part that penetrates the through hole is housed in this cavity, and the switching member The member is biased by the spring member in a direction that causes the push shaft portion to protrude outward, and as a result, the push shaft portion is brought into a protruding state under the rotational operation posture, and the locking pawl engages with the engagement protrusion. The rotating arm portion is configured to be unrotatably locked with respect to the mounting base in opposition to the square portion side. Therefore, when the rotary handle is rotated, the rotary arm portion is integrated with the mounting base, and smooth rotation operation is possible in a stable state. On the other hand, in order to convert from the rotating shaft operating position to the folding position, simply pushing the push shaft against the spring force moves the locking pawl toward the approximately semicircular portion of the engagement protrusion and releases the lock. Therefore, the rotary arm can be rotated in the pushed-in state, which is an extremely simple operation, and the reverse posture change can be reliably performed by simply pulling out and rotating the folded-in rotary arm. In addition, the connection between the mounting base and the rotating arm is extremely simple in structure, so there is little risk of failure, ensuring reliable lock-release operation, and excellent durability. .

【図面の簡単な説明】[Brief explanation of the drawing]

図面はこの考案の一実施例を示すもので、第１
図は回転ハンドルを取付けた机全体の斜視図、第
２図は上記机における回転ハンドル取付部分の要
部斜視図、第３図は回転ハンドルの分解側面図、
第４図は同分解平面図、第５図は回転ハンドルの
連結部分の断面側面図、第６図は同要部断面平面
図である。 ６……回転軸、７……回転ハンドル、８……取
付基部、９……回転アーム部、１１……係合突
片、１１ａ……片側半部、１２……方形部、１３
……略円形部、１６……割り溝、１７……空所、
１７ａ……開口、１８……透孔、２０……切替部
材、２０ａ……係止爪、２０ｂ……押軸部、２１
……コイルばね。 The drawing shows one embodiment of this invention.
The figure is a perspective view of the entire desk with the rotary handle attached, Figure 2 is a perspective view of the main part of the rotary handle attachment part of the desk, Figure 3 is an exploded side view of the rotary handle,
4 is an exploded plan view of the same, FIG. 5 is a cross-sectional side view of a connecting portion of the rotary handle, and FIG. 6 is a cross-sectional plan view of the same essential part. 6... Rotating shaft, 7... Rotating handle, 8... Mounting base, 9... Rotating arm part, 11... Engaging protrusion, 11a... One side half part, 12... Square part, 13
... substantially circular part, 16 ... dividing groove, 17 ... empty space,
17a... Opening, 18... Through hole, 20... Switching member, 20a... Locking claw, 20b... Push shaft portion, 21
...Coil spring.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 回転軸に固着する取付基部と、この取付基部に
設けた係合突片を嵌入して枢着する割り溝を備え
た回転アーム部とから構成され、上記係合突片の
片側半部が厚み方向に方形部と略半円形部とから
２段状に形成され、また上記回転アーム部に割り
溝の奥底に開口すると共に内部より側方外部へ連
通する透孔を備えた空所が形成され、この空所内
にその開口に臨む係止爪と上記透孔に貫入する押
軸部とを一体化した切替部材が内填され、且つこ
の切替部材が上記空所内に内設されたばね部材に
より押軸部を外方突出させる方向に付勢され、回
転操作姿勢下で上記押軸部が突出状態になると共
に、上記係止爪が係合突片の方形部側に対接して
回転アーム部を取付基部に対して回動不能にロツ
クする一方、上記押軸部をばね力に抗して押し込
むことにより係止爪が係合突片の略半円形部側に
移行してロツク解除され、この解除状態で回転ア
ーム部を回動して折り込み状態となしうるように
構成されてなる机等の昇降操作用回転ハンドル装
置。 It is composed of a mounting base that is fixed to the rotating shaft, and a rotating arm that has a split groove into which an engaging protrusion provided on the mounting base is fitted and pivoted, and one half of the engaging protrusion has a thickness. The hollow space is formed in two steps in the direction from a square part and a substantially semicircular part, and the rotary arm part has a cavity that opens at the bottom of the dividing groove and has a through hole that communicates from the inside to the outside. A switching member that integrates a locking pawl facing the opening and a pushing shaft portion penetrating into the through hole is inserted into the cavity, and the switching member is pushed by a spring member disposed inside the cavity. The shaft portion is biased in a direction to protrude outward, and the push shaft portion is in a protruding state under the rotational operation posture, and the locking pawl comes into contact with the square portion side of the engagement protrusion to hold the rotating arm portion. While it is unrotatably locked against the mounting base, by pushing the push shaft against the spring force, the locking pawl moves to the approximately semicircular side of the engagement protrusion and is unlocked. A rotary handle device for lifting and lowering a desk, etc., which is configured so that a rotary arm part can be rotated to a folded state in a released state.