JP5663362B2

JP5663362B2 - Portable key insertion aid for lock

Info

Publication number: JP5663362B2
Application number: JP2011065120A
Authority: JP
Inventors: 田中　健一; 健一田中; 巌樹松田
Original assignee: 美和ロック株式会社
Priority date: 2011-03-24
Filing date: 2011-03-24
Publication date: 2015-02-04
Anticipated expiration: 2031-03-24
Also published as: JP2012202038A

Description

本発明は、携帯型の錠前用キー挿入補助具に関する。 The present invention relates to a portable lock key insertion aid.

特許文献１には、「バリヤーフリーの観点から、キーを指で押し込むことにより、錠前を容易に解錠することができることを目的」として、「円柱状カムの外面にカム係合部及び先端面にブレード部分を有するキー本体と、前記カムに外係合すると共に、前記カム係合部に係合するカーブ状制御案内部を有する収納ケースとから成る錠前用キー」が開示されている。 In Patent Document 1, “from the viewpoint of barrier-free, the purpose is that the lock can be easily unlocked by pushing the key with a finger”, and “the cam engagement portion and the tip surface on the outer surface of the cylindrical cam. A lock key is disclosed which includes a key body having a blade portion and a storage case having a curved control guide portion which engages with the cam engaging portion and engages with the cam engaging portion.

この錠前用キーは、本発明と同様に携帯型であって、錠前を容易に施・解錠することを目的とするものであるが、本発明の所期の目的は、「錠前の鍵穴の形状や水平方向かそれとも垂直方向かの如何を問わず、仮に鍵穴の角度とキーの挿入角度が不一致の場合であっても、キーの先を錠前の鍵穴に一致するように自動的に回転させること」であるから、発明の課題・構成が相違する。 This lock key is portable as in the present invention, and is intended to easily lock and unlock the lock, but the intended purpose of the present invention is to “lock the keyhole of the lock. Regardless of the shape, horizontal direction or vertical direction, even if the keyhole angle does not match the key insertion angle, the key tip is automatically rotated to match the keyhole on the lock. Therefore, the problem / configuration of the invention is different.

また、特許文献２には、外筒体と、該外筒体に後退動可能に係合する内筒体を含む鍵収納ケースが記載され、図１には、外筒体を持ちながら内筒体の先端面を錠前の鍵穴の周囲に押し付ける事項が記載されている。 Patent Document 2 describes a key storage case including an outer cylinder and an inner cylinder that is slidably engaged with the outer cylinder, and FIG. 1 shows the inner cylinder while holding the outer cylinder. The matter of pressing the front end surface of the body around the lock hole is described.

しかしながら、該特許文献２の発明の目的は、錠前を改造することなく、低コストで鍵使用の検知手段を設けることであり、特許文献１と同様に発明の課題・構成が相違する。 However, the object of the invention of Patent Document 2 is to provide a key usage detecting means at a low cost without remodeling the lock, and the problems and configurations of the invention are different as in Patent Document 1.

特開２００７−１６２２３０号公報JP 2007-162230 A 特開２００１−２０７７０１号公報の図１FIG. 1 of Japanese Patent Laid-Open No. 2001-207701

本発明の所期の目的は、錠前の鍵穴の形状や水平方向かそれとも垂直方向かの如何を問わず、仮に鍵穴の角度とキーの挿入角度が不一致の場合であっても、錠前の鍵穴に連結体の先端面（或いはキーの先）を接近させるだけで、キーが連結体を介してキーの挿入位置まで自動的に回る錠前用キー挿入補助具を提案することである。第２の目的は、例えばキーの挿入時に連結体の先端面を鍵穴の周囲に押し付けても、キーを安定的に保持することができることである。第３の目的は、構成部材を容易に組み合わせることができることである。その他外筒体と連結体（例えば円筒体）とキーとをそれぞれ一体的に結合させて錠前の施・解錠操作を実現することである。 The intended purpose of the present invention is to ensure that the keyhole of the lock does not coincide with the keyhole angle and the key insertion angle, regardless of the shape of the keyhole and whether it is horizontal or vertical. It is to propose a key insertion assisting tool for a lock in which the key automatically turns to the key insertion position via the coupling body only by bringing the front end surface (or the tip of the key) of the coupling body closer. The second object is that the key can be stably held even when the front end surface of the coupling body is pressed around the keyhole when the key is inserted, for example. The third object is that the constituent members can be easily combined. In addition, an outer cylinder body, a coupling body (for example, a cylindrical body), and a key are integrally coupled to realize locking / unlocking operations before locking.

本発明の携帯型の錠前用キー挿入補助具は、キーの挿入時、該キーの先端と扉に設けた錠前の鍵穴とが不一致の場合に、操作外筒体に回転自在に保持された前記キーが前記鍵穴と一致する方向へ回転する錠前用キー挿入補助具であって、前記操作外筒体の後端部の内部に被係合部分を設け、一方、内端部に前記被係合部分に係脱可能な係合部分を有する連結体を前記操作外筒体に回転自在かつ後退動可能に支持させ、該連結体は操作外筒体に内装された復帰バネで該操作外筒体の先端開口から突出する方向に付勢され、さらに、該連結体の突出先端部には前記鍵穴側に設けられた第1磁性体の極性に対応して吸着する第2磁性体を設け、前記キーは該連結体と共に回転することができるように互いに係合し、該キーが前記鍵穴に入り込むのに対応して前記連結体は前記復帰バネのバネ力に抗して所定位置まで後退動し、該連結体の内端部の前記係合部分が操作外筒体の前記被係合部分に連結状態に結合することを特徴とする。ここで「係合部分と被係合部分の係合」とは、オス・メス係合や摩擦係合の連結状態をいう。 The portable lock key insertion aid of the present invention is configured such that, when a key is inserted, if the tip of the key does not match the key hole of the lock provided on the door, A key insertion assisting tool for locking in which a key rotates in a direction coinciding with the keyhole, wherein an engaged portion is provided inside a rear end portion of the operation outer cylinder, while the engaged portion is provided on an inner end portion. A connecting body having an engaging portion that can be engaged and disengaged is supported on the operating outer cylinder so as to be rotatable and retractable, and the connecting body is a return spring incorporated in the operating outer cylinder. The second magnetic body that is urged in a direction protruding from the front end opening of the connecting body, and that adsorbs corresponding to the polarity of the first magnetic body provided on the keyhole side is provided at the protruding front end portion of the coupling body, The keys are engaged with each other so that they can rotate with the coupling body, and the keys enter into the keyhole. Then, the connecting body moves backward to a predetermined position against the spring force of the return spring, and the engaging portion of the inner end portion of the connecting body is connected to the engaged portion of the operation outer cylinder. It is characterized by combining. Here, “engagement between the engaged portion and the engaged portion” refers to a connected state of male-female engagement or friction engagement.

（ａ）キー１１を鍵穴ａに正確に合わせなくても、操作外筒体を持って錠前の鍵穴に連結体の先端（或いはキーの先）を接近させるだけで、キーが連結体を介してキーの挿入位置まで自動的に回る。したがって、鍵穴に対するキーの挿入行為が楽である。
（ｂ）請求項２に記載の発明は、例えばキーの挿入時に、該キーは、その軸状後端部が操作外筒体の後端部の内部に支持されていると共に、先端部や中央部（中央部寄りの部位も含む）が後退動可能な連結体の内端部に支持されているので、連結体の先端面を鍵穴の周囲に押し付けても、キーは前後の二箇所で安定的に保持される。したがって、キー挿入補助具の故障を防止することができる。
（ｃ）請求項３に記載の発明は、操作外筒体に対する連結体やバネ部材の組み合わせが容易である。
（ｄ）請求項４に記載の発明は、錠前の鍵穴に連結体の先端（或いはキーの先）を接近させたとき、連結体を連結体用復帰バネのバネ力（抵抗）を極力受けないように回転させることができる。 (A) Even if the key 11 is not precisely aligned with the key hole a, the key can be moved through the connecting body only by holding the operation outer cylinder and bringing the tip of the connecting body (or the tip of the key) closer to the key hole of the lock. It automatically turns to the key insertion position. Therefore, it is easy to insert the key into the keyhole.
(B) In the invention according to claim 2, for example, when the key is inserted, the axial rear end of the key is supported inside the rear end of the operation outer cylinder, and the front end or the center Since the part (including the part near the center) is supported by the inner end of the link body that can be moved backward, the key is stable at the front and rear positions even when the tip of the link body is pressed around the keyhole. Retained. Therefore, failure of the key insertion aid can be prevented.
(C) In the invention described in claim 3, the combination of the connecting body and the spring member to the operation outer cylinder is easy.
(D) In the invention according to claim 4, when the tip of the coupling body (or the tip of the key) is brought close to the key hole of the lock, the coupling body is not subjected to the spring force (resistance) of the coupling body return spring as much as possible. Can be rotated.

図１乃至図８は本発明の最良の実施例（第１の実施形態）を示す各説明図。図９及び図１０は本発明の第２の実施形態を示す各説明図。図１１及び図１２は本発明の第３の実施形態の概略説明図。
本発明の全体の環境状態を示す概略説明図。初期状態の概略説明図。錠前の鍵穴側の概略説明図。一部を省略した要部の概略説明図。連結体を仮想線で示した主要部の説明図。図６の（ａ）は連結体の先端面と鍵穴側の構成を示す概略説明図。図６の（ｂ）は連結体の先端面を鍵穴に接近させた場合の概略説明図。キーの差込み部分が錠前の鍵穴に完全に入り込んだ説明図。キー、連結体、操作外筒体が一体的に回転可能である旨の説明図。連結体が復帰バネのバネ力（抵抗）を極力受けないような状態で回転可能である概略説明図。連結体が後退動している状態の概略説明図。第３の実施形態の全体の概略説明図。操作外筒体を省略した要部の説明図。 FIG. 1 to FIG. 8 are explanatory views showing the best example (first embodiment) of the present invention. 9 and 10 are explanatory views showing a second embodiment of the present invention. 11 and 12 are schematic explanatory views of the third embodiment of the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS Schematic explanatory drawing which shows the whole environmental state of this invention. Schematic explanatory drawing of an initial state. The schematic explanatory drawing by the side of the keyhole before a lock. The schematic explanatory drawing of the principal part which abbreviate | omitted one part. Explanatory drawing of the principal part which showed the connection body by the virtual line. FIG. 6A is a schematic explanatory view showing the configuration of the distal end surface and the keyhole side of the coupling body. (B) of Drawing 6 is a schematic explanatory view at the time of making the tip side of a connecting object approach a keyhole. Explanatory drawing in which the insertion part of the key has completely entered the keyhole of the lock. Explanatory drawing to the effect that a key, a connection body, and an operation outer cylinder body can rotate integrally. Schematic explanatory drawing which can rotate in the state which a connection body does not receive the spring force (resistance) of a return spring as much as possible. The schematic explanatory drawing of the state which the connection body is moving backward. FIG. 6 is a schematic explanatory diagram of an entire third embodiment. Explanatory drawing of the principal part which abbreviate | omitted the operation outer cylinder.

以下、図１乃至図８に示す本発明を実施するための最良の形態により説明する。 Hereinafter, the best mode for carrying out the present invention shown in FIGS. 1 to 8 will be described.

（１）発明の概要
図１は発明の実施の環境を示す概略説明図である。また、図２は初期状態の概略説明図である。図１及び図２に於いて、Ｘは錠前、ａは錠前の鍵穴、ｂは鍵穴の周囲（前面）、Ｙは扉、そして、Ｚは、本発明の携帯型の錠前用キー挿入補助具（以下、「キー挿入補助具」という。）である。このキー挿入補助具Ｚは、キー１１の挿入時、該キー１１の先端と扉Ｙに設けた錠前Ｘの鍵穴ａとが不一致の場合に、錠前Ｘの鍵穴ａ側に連結体２１の先端（或いはキーの先）を接近させると、磁性体同士４１、２５の吸着力により、操作外筒体１に回転自在に保持された前記キー１１が筒状の連結体２１を介して前記鍵穴ａと一致する方向へ自動回転する。 (1) Outline of the Invention FIG. 1 is a schematic explanatory view showing an environment for carrying out the invention. FIG. 2 is a schematic explanatory diagram of the initial state. 1 and 2, X is a lock, a is a key hole of the lock, b is the periphery of the key hole (front surface), Y is a door, and Z is a portable key insertion aid for a lock according to the present invention ( Hereinafter, it is referred to as a “key insertion aid”. When the key 11 is inserted, when the key 11 does not match the key hole a of the lock X provided on the door Y when the key 11 is inserted, the end of the coupling body 21 ( Alternatively, when the tip of the key is approached, the key 11 held rotatably on the operation outer cylindrical body 1 by means of the attractive force of the magnetic bodies 41 and 25 is connected to the keyhole a via the cylindrical connecting body 21. Auto rotate in matching direction.

すなわち、実施形態のキー挿入補助具Ｚは、例えば図１及び図２で示す操作外筒体１の後端部２の内部にメスに相当する被係合部分３を環状に設け、一方、鍔状の内端部２２に前記環状被係合部分３に係脱可能なオスに相当する筒状の係合部分２３を有するパイプ状の連結体２１を操作外筒体１に回転自在かつ後退動可能に支持させている。
しかして、前記パイプ状連結体２１は操作外筒体１に内装された復帰バネ３１で該操作外筒体１の先端開口４から突出する方向に常に付勢され、さらに、該パイプ状連結体２１の突出先端部２４には、錠前Ｘの鍵穴ａ側に設けた単数又は複数個の第1磁性体４１、４１の極性に対応して吸着する単数又は複数個の第2磁性体２５、２５を設けてある。そして、前記キー１１は連結体２１と共に回転することができるように該連結体の先端面に形成した長孔状支持孔２６と扁平状のキー先１１ａを介して互いに係合している。 That is, the key insertion auxiliary tool Z of the embodiment is provided with an engaged portion 3 corresponding to a knife in an annular shape inside the rear end portion 2 of the operation outer cylinder 1 shown in FIGS. 1 and 2, for example. A pipe-like connecting body 21 having a cylindrical engaging portion 23 corresponding to a male which can be engaged with and disengaged from the annular engaged portion 3 at the inner end portion 22 is rotatable and retracted to the operation outer cylindrical body 1. I support it as possible.
Accordingly, the pipe-like connecting body 21 is always urged in a direction protruding from the front end opening 4 of the operation outer cylinder 1 by a return spring 31 built in the operation outer cylinder 1, and further, the pipe-like connection body The one or more second magnetic bodies 25, 25 adsorbed to the protruding tip 24 of the lock 21 in accordance with the polarity of the one or more first magnetic bodies 41, 41 provided on the keyhole a side of the lock X. Is provided. The key 11 is engaged with each other via a long hole-like support hole 26 formed in the front end surface of the coupling body and a flat key tip 11a so that the key 11 can rotate together with the coupling body 21.

そこで、キー挿入補助具Ｚを操作する際には、該キー挿入補助具Ｚを指で摘んだ状態で錠前Ｘの鍵穴ａ側に連結体２１の先端（或いはキーの先）を接近させると、固定（鍵穴ａ）側の第1磁性体４１、４１の極性に対応して、可動（キー挿入補助具Ｚ）側の第2磁性体２５、２５が吸着する方向へと引かれるので、操作外筒体１に回転自在に保持されたパイプ状連結体２１は、所要量（例えば１０度、３０度、４５度など）、瞬間的に回転する。この時、該キー１１は、その軸状後端部１１ｂが操作外筒体１の後端部２の内部に形成された軸穴２ａに支持されていると共に、先端部１１ａや中央部１１ｃが後退動可能な連結体２１の内端部２２に支持されているので、連結体２１の先端面２１ａを鍵穴ａの周囲ｂに押し付けても、板状乃至棒状のキー１１は前後の二箇所で安定的に保持される。 Therefore, when operating the key insertion aid Z, if the tip of the coupling body 21 (or the tip of the key) is brought closer to the key hole a side of the lock X while the key insertion aid Z is picked with a finger, Since the second magnetic bodies 25, 25 on the movable (key insertion auxiliary tool Z) side are attracted in accordance with the polarities of the first magnetic bodies 41, 41 on the fixed (key hole a) side, they are not operated. The pipe-shaped coupling body 21 rotatably held by the cylinder 1 is instantaneously rotated by a required amount (for example, 10 degrees, 30 degrees, 45 degrees, etc.). At this time, the key 11 has a shaft-shaped rear end portion 11b supported by a shaft hole 2a formed inside the rear end portion 2 of the operation outer cylinder 1, and a front end portion 11a and a center portion 11c. Since it is supported by the inner end portion 22 of the connecting body 21 that can be moved backward, even if the front end surface 21a of the connecting body 21 is pressed against the periphery b of the key hole a, the plate-like or bar-like key 11 is located at two places on the front and rear. It is held stably.

そして、キー１１の扁平状キー先１１ａが鍵穴ａと一致した所（挿入可能位置）で、キー挿入補助具Ｚを鍵穴ａ側に押し込むと、該キー１１が前記鍵穴ａに入り込むのに対応して前記連結体２１は復帰バネ３１のバネ力に抗して所定位置まで後退動し、該連結体２１の内端部２２の突起状係合部分２３が操作外筒体１の被係合部分３に連結状態に係合（この実施形態では係入、或いは嵌合）する。 When the key insertion assisting tool Z is pushed into the key hole a side where the flat key tip 11a of the key 11 coincides with the key hole a (insertable position), the key 11 corresponds to entering the key hole a. Thus, the connecting body 21 moves backward to a predetermined position against the spring force of the return spring 31, and the protruding engagement portion 23 of the inner end 22 of the connecting body 21 is the engaged portion of the operation outer cylinder 1. 3 is engaged in a connected state (in this embodiment, engaged or fitted).

図３は、錠前Ｘの鍵穴ａ側の概略説明図である。単数又は複数個（実施形態）の第1磁性体４１、４１は、水平方向の鍵穴ａの左右に一対埋設されている。したがって、実施化レベルでは、例えば内筒体の前面左右に第1磁性体４１、４１が設けられている。もちろん、第1磁性体４１、４１の配設位置は、内筒体の前面に限定されるものではなく、キー挿入補助具Ｚ側の連結体２１の先端面２１ａ或いは先端部に突起状態に設けられた位置に対応する必要があるので、錠前Ｘの内筒体を包む外筒体等の前面に適宜配設される。 FIG. 3 is a schematic explanatory view of the lock X on the side of the keyhole a. A single or plural (embodiment) first magnetic bodies 41, 41 are embedded in the left and right sides of the horizontal keyhole a. Therefore, at the implementation level, for example, the first magnetic bodies 41 and 41 are provided on the front left and right of the inner cylinder. Of course, the arrangement position of the first magnetic bodies 41, 41 is not limited to the front surface of the inner cylindrical body, and is provided in a protruding state on the distal end surface 21a or the distal end portion of the coupling body 21 on the key insertion auxiliary tool Z side. Since it is necessary to correspond to the provided position, it is appropriately disposed on the front surface of the outer cylinder or the like that wraps the inner cylinder of the lock X.

図４は一部を省略した要部の概略説明図である。また図５は、連結体２１を仮想線で示した主要部の説明図である。これらの図から明らかなように、実施形態の「係合」は、摩擦方式ではなく、オス・メスの係合関係であり、例えばオスに相当する係合部分２３を連結体２１の内端部２２から操作外筒体１の被係合部分３方向へ突出形成し、該係合部分２３の形状を短筒状にすると共に、その外周面に平歯車の如く、多数の係合歯を形成する。この短筒状係合部分２３の長さは、復帰バネ３１の存在が障害とならないように所要の長さに設定されている。オス側の係合部分２３が連結体２１の内端部２２に形成したので、実施形態では、操作外筒体１の被係合部分３は蓋体に相当する後端部２の内壁部分に形成され、該被係合部分３の形状は、前記短筒状の係合部分２３が係入可能な環状溝であり、しかも、該環状溝の内周には、前述した多数の係合歯に噛合する多数の被係合歯が形成されている（図８参照）。 FIG. 4 is a schematic explanatory diagram of a main part with a part omitted. FIG. 5 is an explanatory diagram of a main part in which the linking body 21 is indicated by a virtual line. As is clear from these drawings, the “engagement” of the embodiment is not a friction type but a male-female engagement relationship. For example, the engagement portion 23 corresponding to the male is connected to the inner end portion of the coupling body 21. 22 is formed so as to project in the direction of the engaged portion 3 of the operation outer cylindrical body 1, and the shape of the engaging portion 23 is made short, and a large number of engaging teeth are formed on its outer peripheral surface like a spur gear. To do. The length of the short cylindrical engagement portion 23 is set to a required length so that the presence of the return spring 31 does not become an obstacle. Since the male-side engaging portion 23 is formed at the inner end portion 22 of the coupling body 21, in the embodiment, the engaged portion 3 of the operation outer cylinder 1 is formed on the inner wall portion of the rear end portion 2 corresponding to the lid. The shape of the engaged portion 3 formed is an annular groove into which the short cylindrical engagement portion 23 can be engaged, and the inner periphery of the annular groove has a number of engagement teeth as described above. A large number of engaged teeth are formed (see FIG. 8).

（２）錠前Ｘの鍵穴ａ
第1磁性体４１、４１を有する錠前Ｘの鍵穴ａは、水平方向又は垂直方向のいずれであっても良い。また鍵穴ａの形状は、例えばブレード部分と称される差込み部分の両側縁部分に刻み状の鍵溝を有するもの、又はブランキーと称される平坦面に幾何学的溝、逆円錐台状窪み等を有するものがそれぞれ挿入可能なものであれば良い。例えば図５で示すように、実施形態のキー１１はブランキーと称されるものなので、錠前Ｘの鍵穴ａは、例えば単純な水平方向の穴である。 (2) Key hole a of lock X
The key hole a of the lock X having the first magnetic bodies 41, 41 may be either in the horizontal direction or in the vertical direction. In addition, the shape of the key hole a is, for example, one having notched key grooves on both side edge portions of the insertion portion referred to as a blade portion, or a geometric groove, inverted frustoconical recess on a flat surface referred to as a blank key, etc. It is sufficient that each of those having a can be inserted. For example, as shown in FIG. 5, since the key 11 of the embodiment is called a blank key, the key hole a of the lock X is, for example, a simple horizontal hole.

（３）操作外筒体１
実施形態では、操作外筒体１は、両端開口の長筒状円筒体（不番）と、該長筒状円筒体の後端開口に嵌着するキャップ状の蓋体２から成る。このように構成すると、連結体２１、復帰バネ３１等を操作外筒体１の後端開口から容易に組み込むことができる。なお、連結体２１、復帰バネ３１等を操作外筒体１の後端開口から組込んだ後は、キャップ状蓋体２を嵌着し、かつ複数個の固着具でもって蓋体１を長筒状円筒体に固定する。 (3) Operation outer cylinder 1
In the embodiment, the operation outer cylinder 1 includes a long cylindrical cylinder (unnumbered) having openings at both ends, and a cap-shaped lid 2 fitted into the rear end opening of the long cylindrical cylinder. If comprised in this way, the connection body 21, the return spring 31, etc. can be easily integrated from the rear-end opening of the operation outer cylinder 1. FIG. After the coupling body 21, the return spring 31 and the like are assembled from the rear end opening of the operation outer cylinder 1, the cap-shaped lid 2 is fitted and the lid 1 is long with a plurality of fixing tools. Fix to a cylindrical cylinder.

（４）連結体２１
キー１１を回すことができる連結体２１は、図１や図２で示すように、初期状態では、連結体用復帰バネ３１のバネ力により外筒体１の先端開口４から突出すると共に、キー１１の中央部（中央部寄りの部位も含む）１１ｃからキー先１１ａまで（キー１の一部を）直接に覆っている。円筒状或いはパイプ状の連結体２１は、初期状態の時、操作外筒体１の先端開口４から外れないように、例えば内端部２２はフランジ状に形成され、該内端部２２の前面（当接部分）は操作外筒体１の環状ストッパ部分５にソフトなタッチで当接している。付言すると、連結体２１用復帰バネ３１のバネ力は、初期状態では、伸び切っており、復帰バネ３１の抵抗力が連結体２１に極力作用しないように設定されている。 (4) Linked body 21
As shown in FIGS. 1 and 2, the connecting body 21 that can turn the key 11 protrudes from the distal end opening 4 of the outer cylindrical body 1 by the spring force of the connecting body return spring 31 in the initial state. 11 directly covers the central part (including the part closer to the central part) 11c to the key tip 11a (part of the key 1). For example, the inner end 22 is formed in a flange shape so that the cylindrical or pipe-like connecting body 21 does not come off from the front end opening 4 of the operation outer cylinder 1 in the initial state. The (contact portion) is in contact with the annular stopper portion 5 of the operation outer cylinder 1 with a soft touch. In addition, the spring force of the return spring 31 for the connecting body 21 is set to be fully extended in the initial state so that the resistance force of the return spring 31 does not act on the connecting body 21 as much as possible.

また、連結体２１は、初期状態の時は操作外筒体１を捕捉（結合）していないものの、連結体２１が錠前Ｘの鍵穴ａの周囲ｂに押付けられながら、かつ連結体用復帰バネ３１のバネ力に抗して所定位置まで後退した時に、その係合部分２３が操作外筒体１の後端部２の被係合部分３に係合（捕捉）する。その結果、操作外筒体１とキー１１と連結体２１がそれぞれ一体的に結合する。 In addition, the connecting body 21 does not capture (couple) the operation outer cylinder 1 in the initial state, but the connecting body 21 is pressed against the periphery b of the key hole a of the lock X and the return spring for the connecting body. When retracted to a predetermined position against the spring force of 31, the engaging portion 23 engages (captures) the engaged portion 3 of the rear end portion 2 of the operation outer cylinder 1. As a result, the operation outer cylinder 1, the key 11, and the connecting body 21 are integrally coupled.

さらに、連結体２１の先端面には、前述したように、支持孔２６が形成され、該支持孔２６にキー先１１ａが係合しているので、連結体２１が左右いずれかの方向に回転すると、キー１１は連結体２１と共に同方向へと回転する。 Further, as described above, the support hole 26 is formed in the distal end surface of the connection body 21, and the key tip 11 a is engaged with the support hole 26, so that the connection body 21 rotates in either the left or right direction. Then, the key 11 rotates in the same direction together with the connecting body 21.

（５）構成・作用
図６の（ａ）は、連結体２１の先端面２１ａと鍵穴ａ側の構成を示す概略説明図、一方、図６の（ｂ）は連結体２１の先端面２１ａを鍵穴ａに接近させた場合の概略説明図である。また図７は、キー１１の差込み部分が錠前Ｘの鍵穴ａに完全に入り込んだ説明図である。さらに、図８は、キー１１、パイプ状連結体２１、操作外筒体１が一体的に回転可能である旨の説明図である。 (5) Configuration / Action FIG. 6A is a schematic explanatory view showing the configuration of the distal end surface 21a of the coupling body 21 and the keyhole a side, while FIG. 6B shows the distal end surface 21a of the coupling body 21. It is a schematic explanatory drawing at the time of making it approach to the keyhole a. FIG. 7 is an explanatory view in which the insertion portion of the key 11 is completely inserted into the key hole a of the lock X. Further, FIG. 8 is an explanatory diagram showing that the key 11, the pipe-like connecting body 21, and the operation outer cylinder 1 can be rotated together.

これらの図から明らかなように、実施形態の錠前用キー挿入補助具Ｚは、後端部２の内部に被係合部分３を有する長筒状の操作外筒体１と、この操作外筒体１に後端部（内端部２２）側が挿入されていると共に、先端部側が該操作外筒体１の先端開口４から突出するキー１１と、前記被係合部分３と係脱可能な係合部分２３を有する内端部２２が前記操作外筒体１の環状先端部分に係止された状態で該操作外筒体１に嵌挿され、かつ該内端部２２に連設する突出部分が前記キー１１の先端部側の一部又は全部（本実施形態）を包むと共に、前記操作外筒体１に支持された状態でキーを回転させることができるパイプ状連結体２１と、この連結体２１をキー１１の先端部側に付勢するように操作外筒体１に内装された連結用復帰バネ３１と、扉Ｙに設けられた錠前Ｘの鍵穴ａ側に設けた単数又は複数の第1磁性体４１の極性に対応して吸着するように前記連結体２１の突出部分の先端部或いは先端面２１ａに設けられた第2磁性体２５とから成り、前記キー１１の挿入時、操作外筒体１を指で摘んだ状態で、パイプ状連結体２１の先端部を鍵穴ａに接近させるだけで、前記第1磁性体４１に対して前記第2磁性体２５が吸着するようにパイプ状連結体２１が所要量回転し、その結果、キー１１はパイプ状連結体２１を介して自動回転し、キー１１のキー先１１ａが略鍵穴ａに挿入可能な位置となる。 As is apparent from these drawings, the lock key insertion assisting tool Z of the embodiment includes a long cylindrical operation outer cylinder 1 having an engaged portion 3 inside the rear end portion 2, and the operation outer cylinder. A rear end (inner end 22) side is inserted into the body 1, and a front end protrudes from the front end opening 4 of the operation outer cylinder 1 and the engaged portion 3 can be engaged and disengaged. A protrusion that is fitted into the operation outer cylinder 1 in a state in which an inner end 22 having an engagement portion 23 is locked to an annular tip portion of the operation outer cylinder 1 and that is connected to the inner end 22. A pipe-like connecting body 21 that wraps part or all (this embodiment) on the tip end side of the key 11 and that can rotate the key while being supported by the operation outer cylinder 1, A return spring 31 for connection housed in the operation outer cylinder 1 so as to bias the connection body 21 toward the distal end side of the key 11, and a door Provided at the tip or tip surface 21a of the projecting portion of the connecting body 21 so as to adsorb in accordance with the polarity of one or more first magnetic bodies 41 provided on the key hole a side of the lock X provided on the lock X. The first magnetic member 25 is composed of a second magnetic body 25. When the key 11 is inserted, the first magnetic member can be obtained simply by bringing the distal end of the pipe-like connecting body 21 close to the key hole a while holding the operation outer cylinder 1 with a finger. The pipe-shaped connecting body 21 rotates by a required amount so that the second magnetic body 25 is attracted to the body 41. As a result, the key 11 is automatically rotated via the pipe-shaped connecting body 21, and the key tip of the key 11 is 11a is a position that can be inserted into the substantially keyhole a.

その後、操作外筒体１を持つたままの状態でキー１１の先端部側を鍵穴ａに挿入すると、パイプ状連結体２１の先端面２１ａは鍵穴ａの周面に押されながらパイプ状連結体２１は所定位置まで後退動し、該パイプ状連結体２１の内端部２２の筒状の係合部分２３が操作外筒体１の環状被係合部分３に連結状態に係合する。この時、操作外筒体１とキー１１と連結体２１は一体的に連結状態となり、操作外筒体１を持ちながら、該操作外筒体を施・解錠方向へ回すと、キー１１は連結体２１と共働回転する。 Thereafter, when the distal end side of the key 11 is inserted into the keyhole a with the operation outer cylinder 1 still held, the distal end surface 21a of the pipe-like coupling body 21 is pushed by the peripheral surface of the keyhole a. 21 moves backward to a predetermined position, and the cylindrical engaging portion 23 of the inner end portion 22 of the pipe-like connecting body 21 is engaged with the annular engaged portion 3 of the operation outer cylinder 1 in a connected state. At this time, the operation outer cylinder 1, the key 11, and the connection body 21 are integrally connected. When the operation outer cylinder is rotated in the direction of unlocking and unlocking while holding the operation outer cylinder 1, the key 11 is It rotates together with the connecting body 21.

本発明の第１の実施形態に於いて、復帰バネ３１の線径、巻き数、強さ等は、連結体２１の回転や後退動を考慮して適宜に設定される事項である。望ましくは、復帰バネ３１の先端部はリング状に形成して、連結体２１がスムースに滑動するように設計される。また、錠前側の第１磁性体４１の位置は、実施形態では、鍵穴ａの長径方向の左右に配設されているが、鍵穴ａの短径方向の上下に配設しても良い。この場合は連結体側の第2磁性体２５の位置もそれに対応する位置に配設される。要は、錠前側の第１磁性体４１に連結体側の第2磁性体25が吸着した所で、鍵穴ａとキー先１１ａが一致すれば良い。
以下、この欄では、本発明の第２・第３の実施形態を説明する。なお、これらの実施形態を説明するに当って、第１の実施形態と同一の部分には同一又は同様の符号を付して重複する説明を割愛する。 In the first embodiment of the present invention, the wire diameter, the number of turns, the strength, and the like of the return spring 31 are items that are appropriately set in consideration of the rotation and backward movement of the coupling body 21. Desirably, the front end portion of the return spring 31 is formed in a ring shape, and the connecting body 21 is designed to slide smoothly. Further, in the embodiment, the positions of the first magnetic bodies 41 on the lock side are arranged on the left and right in the major axis direction of the key hole a, but may be arranged on the upper and lower sides in the minor axis direction of the key hole a. In this case, the position of the second magnetic body 25 on the coupling body side is also arranged at the corresponding position. In short, it is only necessary that the key hole a and the key tip 11a coincide with each other at the place where the second magnetic body 25 on the coupling body side is attracted to the first magnetic body 41 on the lock side.
Hereinafter, in this section, second and third embodiments of the present invention will be described. In the description of these embodiments, the same parts as those in the first embodiment are denoted by the same or similar reference numerals, and redundant descriptions are omitted.

図９及び図１０は本発明の第２の実施形態を示す各説明図である。この第２の実施形態の特徴は、操作外筒体１Ａに連結体２１Ａの内端部２２Ａを滑動可能に支持すると共に、復帰バネ３１Ａのバネ先端部を支持する環状摺動体３０を内装した点である。この第２の実施形態の操作外筒体１Ａの先端部は断面段差状に形成され、該断面段差部分にはパイプ状連結体２１Ａのフランジ状内端部２２Ａの一部が遊嵌合する小径の環状凹所６が含まれている。また、前記断面段差部分（先端部の内部）には、前記環状摺動体３０の前面が当接する環状のストッパ面７が形成されている。環状摺動体３０は、滑動性の機能を有する合成樹脂材で断面段差状のドーナツ形状に成形され、前側の大径孔は常に連結体２１Ａの内端部２２Ａを支承し、一方、後側の小径孔は筒状係合部分２３に外嵌合している。そして、環状摺動体３０の後端面は復帰バネ３１Ａのバネ先端部を受けている。 9 and 10 are explanatory diagrams showing a second embodiment of the present invention. The feature of the second embodiment is that the operation outer cylinder 1A includes an inner sliding portion 30A that slidably supports the inner end portion 22A of the coupling body 21A and that supports the spring tip portion of the return spring 31A. It is. The distal end portion of the operation outer cylinder 1A of the second embodiment is formed in a stepped section, and a small diameter in which a part of the flange-shaped inner end portion 22A of the pipe-like connecting body 21A is loosely fitted in the stepped section. An annular recess 6 is included. Further, an annular stopper surface 7 with which the front surface of the annular sliding body 30 abuts is formed at the stepped portion (inside the tip). The annular sliding body 30 is formed of a synthetic resin material having a sliding function into a donut shape with a stepped cross section, and the front large-diameter hole always supports the inner end 22A of the connecting body 21A, while the rear side The small diameter hole is externally fitted to the cylindrical engagement portion 23. The rear end surface of the annular sliding body 30 receives the spring tip of the return spring 31A.

図９は、パイプ状の連結体２１Ａが復帰バネ３１Ａのバネ力（抵抗）を極力受けないような状態で回転可能であることを示している。また図１０は、パイプ状の連結体２１Ａが後退動している状態を示している。 FIG. 9 shows that the pipe-like connecting body 21A can rotate in a state where it does not receive the spring force (resistance) of the return spring 31A as much as possible. FIG. 10 shows a state where the pipe-like connecting body 21A is moving backward.

図１１及び図１２は本発明の第３の実施形態の概略説明図である。この第３の実施形態は、連結体２１Ｂの内端部２２に突設した係合部分２３の端面に多数の刻み状の小突起２３ａが設けられ、一方、操作外筒体１の後端部２の内壁面には、摩擦抵抗を有する被係合部３Ｂ（例えばゴム板）が張り付けられている点である。このように、係合部分２３と被係合部３Ｂの係脱構造は、公知・周知のクラッチ機構（円盤体の対向面同士の凹凸、ゴム板に対する摩擦係合など）であっても良い。 11 and 12 are schematic explanatory views of a third embodiment of the present invention. In the third embodiment, a large number of stepped projections 23a are provided on the end surface of the engaging portion 23 projecting from the inner end portion 22 of the connecting body 21B, while the rear end portion of the operation outer cylinder 1 is provided. 2 is that an engaged portion 3B (for example, a rubber plate) having a frictional resistance is attached to the inner wall surface. Thus, the engagement / disengagement structure between the engaging portion 23 and the engaged portion 3B may be a known and well-known clutch mechanism (unevenness between opposing surfaces of the disk body, friction engagement with a rubber plate, etc.).

本発明は、主に錠前や建具の業界で利用される。 The present invention is mainly used in the locksmith and joinery industries.

Ｘ…錠前、ａ…鍵穴、ｂ…鍵穴の周囲、Ｙ…扉、Ｚ…キー挿入補助具、1、１Ａ…操作外筒体、２…後端部、３、３Ｂ…被係合部分、４…先端開口、５…ストッパ部分、６…環状凹所、１１、１１Ａ…キー、１１ａ…キー先、１１ｂ…軸状後端部、２１、２１Ａ、２１Ｂ…連結体、２１ａ…先端面、２２、２２Ａ…内端部、２３…係合部分、２４…突出先端部、２５…連結体側の第2磁性体、３０…環状摺動体、３１、３１Ａ…復帰バネ、４１…錠前側の第１磁性体。 X ... lock, a ... keyhole, b ... surrounding the keyhole, Y ... door, Z ... key insertion aid, 1, 1A ... operation outer cylinder, 2 ... rear end, 3, 3B ... engaged portion, 4 ... opening of tip, 5 ... stopper portion, 6 ... annular recess, 11, 11A ... key, 11a ... key tip, 11b ... axial rear end portion, 21, 21A, 21B ... coupling body, 21a ... tip surface, 22, 22A ... Inner end portion, 23 ... Engagement portion, 24 ... Projection tip, 25 ... Second magnetic body on the coupling body side, 30 ... Annular slide body, 31, 31A ... Return spring, 41 ... First magnetic body on the lock side .

Claims

キーの挿入時、該キーの先端と扉に設けた錠前の鍵穴とが不一致の場合に、操作外筒体に回転自在に保持された前記キーが前記鍵穴と一致する方向へ回転する錠前用キー挿入補助具であって、前記操作外筒体の後端部の内部に被係合部分を設け、一方、内端部に前記被係合部分に係脱可能な係合部分を有する連結体を前記操作外筒体に回転自在かつ後退動可能に支持させ、該連結体は操作外筒体に内装された復帰バネで該操作外筒体の先端開口から突出する方向に付勢され、さらに、該連結体の突出先端部には前記鍵穴側に設けた第1磁性体の極性に対応して吸着する第2磁性体を設け、前記キーは該連結体と共に回転することができるように互いに係合していることを特徴とする錠前用キー挿入補助具。 When the key is inserted, if the tip of the key and the keyhole of the lock provided on the door do not match, the key for lock that rotates in the direction in which the key rotatably held in the operation outer cylinder matches the keyhole An insertion assisting tool, wherein a engaged part is provided inside a rear end part of the operation outer cylindrical body, and on the other hand, a coupling body having an engaging part detachable from the engaged part at an inner end part. The operation outer cylinder body is rotatably and reversibly supported, and the coupling body is urged in a direction protruding from the distal end opening of the operation outer cylinder body by a return spring built in the operation outer cylinder body, The projecting tip of the coupling body is provided with a second magnetic body that adsorbs corresponding to the polarity of the first magnetic body provided on the keyhole side, and the keys are engaged with each other so that they can rotate together with the coupling body. A key insertion aid for a lock characterized by being combined.

請求項１に於いて、キーは、その軸状後端部が操作外筒体の後端部の内部に支持されていると共に、少なくとも先端部又は中央部のいずれかが後退動可能なパイプ状の連結体の内端部に支持されていることを特徴とする錠前用キー挿入補助具。 2. The pipe according to claim 1, wherein the axial rear end portion of the key is supported inside the rear end portion of the operation outer cylinder, and at least one of the front end portion and the central portion can be moved backward. A key insertion auxiliary tool for locks, which is supported by an inner end portion of the connecting body.

請求項１又は請求項２に於いて、操作外筒体は、両端開口の長筒状円筒体と、該長筒状円筒体の後端開口に嵌着するキャップ状の蓋体から成ることを特徴とする錠前用キー挿入補助具。 3. The operation outer cylinder according to claim 1, wherein the operation outer cylinder includes a long cylindrical cylinder having openings at both ends and a cap-shaped lid fitted to the rear end opening of the long cylinder. A key insertion aid for locks.

請求項１に於いて、操作外筒体に連結体の内端部を滑動可能に支持すると共に復帰バネの先端部を支持する環状摺動体を内装したことを特徴とする錠前用キー挿入補助具。 2. The key insertion aid for a lock according to claim 1, wherein the operation outer cylinder body is provided with an annular sliding body that slidably supports the inner end portion of the coupling body and supports the distal end portion of the return spring. .