JP7439457B2 - Lock mechanism of opening/closing member, medium transport device, document reading device, and recording device - Google Patents

Lock mechanism of opening/closing member, medium transport device, document reading device, and recording device Download PDF

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JP7439457B2
JP7439457B2 JP2019195976A JP2019195976A JP7439457B2 JP 7439457 B2 JP7439457 B2 JP 7439457B2 JP 2019195976 A JP2019195976 A JP 2019195976A JP 2019195976 A JP2019195976 A JP 2019195976A JP 7439457 B2 JP7439457 B2 JP 7439457B2
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opening
closing member
locking mechanism
engaged
contact surface
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JP2021070163A (en
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和紀 森
孝司 右田
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Seiko Epson Corp
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Seiko Epson Corp
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Description

本発明は、開閉部材のロック機構、媒体を搬送する媒体搬送装置、原稿を読み取る原稿読取装置、及び原稿読取装置を備えた記録装置に関する。 The present invention relates to a locking mechanism for an opening/closing member, a medium conveyance device that conveys a medium, a document reading device that reads a document, and a recording device that includes the document reading device.

開閉部材を装置本体にロックするロック機構が従来から知られており、その一例が特許文献1に示されている。
特許文献1記載のシート搬送装置は、カバーに設けられた操作レバーと連動する支軸を有しており、該支軸の一方端に設けられた鉤状部を本体内部に設けられた掛止部に引っ掛けることで、カバーをロックしている。
2. Description of the Related Art A locking mechanism for locking an opening/closing member to an apparatus main body has been known in the past, and one example thereof is shown in Patent Document 1.
The sheet conveyance device described in Patent Document 1 has a support shaft that interlocks with an operating lever provided on a cover, and a hook-shaped portion provided at one end of the support shaft is connected to a hook provided inside the main body. The cover is locked by hooking it on the section.

特開2014-189342号公報Japanese Patent Application Publication No. 2014-189342

特許文献1記載の構成では、開閉部材に対して下向きの大きな操作荷重を作用させて、鉤状部を掛止部に対してかなり下側へ移動させないと、鉤状部が掛止部の上側に乗り上げるなどしてしまい、鉤状部を掛止部に引っ掛け難い。つまり、開閉部材を閉じるのに必要な操作荷重が大きくなる虞がある。 In the configuration described in Patent Document 1, unless a large downward operating load is applied to the opening/closing member and the hooked portion is moved considerably downward with respect to the hooked portion, the hooked portion will move to the upper side of the hooked portion. It is difficult to hook the hook-shaped part to the latching part. In other words, there is a possibility that the operating load required to close the opening/closing member becomes large.

上記課題を解決する為の、本発明に係る開閉部材のロック装置は、装置本体に設けられた被係合部と、前記装置本体に回動可能に設けられ、前記装置本体を開閉する開閉部材と、前記開閉部材に回動可能に設けられ、前記被係合部と係合する係合部を備え、前記係合部と前記被係合部とを係合させる操作によって前記開閉部材を閉状態とする操作部材と、前記係合部に形成され、前記係合部が前記被係合部に向かう回動方向において、下流側の部位の第1回動半径が上流側の部位の第2回動半径よりも大径とされ、前記被係合部と接触する接触面と、を有することを特徴とする。 In order to solve the above problems, a locking device for an opening/closing member according to the present invention includes an engaged part provided in a device main body, and an opening/closing member rotatably provided in the device main body to open and close the device main body. and an engaging part that is rotatably provided on the opening/closing member and that engages with the engaged part, and the opening/closing member is closed by an operation of engaging the engaging part and the engaged part. an operating member formed on the engaging portion, in which in the direction of rotation of the engaging portion toward the engaged portion, a first turning radius of the downstream portion is a second turning radius of the upstream portion; It is characterized by having a contact surface that has a diameter larger than the rotation radius and contacts the engaged portion.

実施形態1に係るプリンターを前方から見た斜視図。1 is a perspective view of the printer according to Embodiment 1 seen from the front. FIG. 実施形態1に係るADFユニットの側断面図。1 is a side sectional view of an ADF unit according to Embodiment 1. FIG. 実施形態1に係るADFユニットのカバー部を開放した状態を表す斜視図。FIG. 2 is a perspective view showing the ADF unit according to Embodiment 1 with the cover section opened. 実施形態1に係るADFユニットのカバー部の開状態における内部構成を表す側断面図。FIG. 3 is a side sectional view showing the internal configuration of the ADF unit according to the first embodiment when the cover portion is in an open state. 実施形態1に係るADFユニットのカバー部の開状態における内部構成を表す側断面図。FIG. 3 is a side sectional view showing the internal configuration of the ADF unit according to the first embodiment when the cover portion is in an open state. 実施形態1に係るカバー部及び操作部材の配置状態を表す部分拡大断面図。FIG. 3 is a partially enlarged sectional view showing the arrangement of the cover part and the operating member according to the first embodiment. 実施形態1に係るピン部材と操作部材との接触状態を表す概略図。FIG. 3 is a schematic diagram showing a state of contact between a pin member and an operating member according to the first embodiment. 実施形態1に係る操作レバーの表示部を表す斜視図。FIG. 3 is a perspective view showing a display section of the operating lever according to the first embodiment. 実施形態1に係るピン部材と操作部材との接触状態において作用する力を示す説明図。FIG. 4 is an explanatory diagram showing the force that acts when the pin member and the operating member are in contact with each other according to the first embodiment. 実施形態1に係る操作部材とピン部材との係合状態を表す側断面図。FIG. 3 is a side cross-sectional view showing an engaged state between the operating member and the pin member according to the first embodiment. 実施形態2に係る操作部材の説明図。FIG. 7 is an explanatory diagram of an operating member according to Embodiment 2. 変形例に係る操作部材の表示部の斜視図。FIG. 7 is a perspective view of a display section of an operating member according to a modification.

以下、本発明について概略的に説明する。
上記課題を解決するための本発明の第1の態様に係る開閉部材のロック機構は、装置本体に設けられた被係合部と、前記装置本体に回動可能に設けられ、前記装置本体を開閉する開閉部材と、前記開閉部材に回動可能に設けられ、前記被係合部と係合する係合部を備え、前記係合部と前記被係合部とを係合させる操作によって前記開閉部材を閉状態とする操作部材と、前記係合部に形成され、前記係合部が前記被係合部に向かう回動方向において、下流側の部位の第1回動半径が上流側の部位の第2回動半径よりも大径とされ、前記被係合部と接触する接触面と、を有することを特徴とする。
The present invention will be briefly described below.
A locking mechanism for an opening/closing member according to a first aspect of the present invention for solving the above problems is provided with an engaged portion provided on a device main body, and a locking mechanism rotatably provided on the device main body, which locks the device main body. An opening/closing member that opens and closes, and an engaging part that is rotatably provided on the opening/closing member and that engages with the engaged part, and when the engaging part and the engaged part are engaged, the An operating member that closes the opening/closing member is formed on the engaging portion, and in the rotating direction of the engaging portion toward the engaged portion, a first rotation radius of the downstream portion is such that the first rotation radius of the downstream portion is that of the upstream portion. It is characterized in that it has a contact surface that has a diameter larger than the second rotation radius of the portion and comes into contact with the engaged portion.

本態様によれば、前記操作部材が操作によって回動中心周りに回動された場合に、前記回動方向における前記接触面の前記下流側の部位は、前記上流側の部位に先行して、前記被係合部と接触しようとする。
ここで、前記被係合部と前記接触面とが接触した場合に、先行する前記下流側の部位の前記第1回動半径が、後側となる前記上流側の部位の前記第2回動半径よりも大径となっていることで、前記接触面には、前記被係合部に対する前記回動中心側とは反対側に向かう力が作用する。このため、前記接触面は、前記被係合部の前記回動中心側とは反対側の周囲に対して回り込むように移動する。これにより、前記係合部と前記被係合部とが係合され、前記開閉部材が閉状態となる。
このように、前記係合部が前記被係合部の周囲に回り込むような力を前記操作部材に追加で与えなくても、前記操作部材を回動させることで、前記係合部が前記被係合部の周囲に案内されて回り込みながら係合し、前記開閉部材を閉じるので、前記開閉部材を閉じるのに必要な操作荷重が大きくなるのを抑制することができる。
According to this aspect, when the operating member is rotated around the rotation center by operation, the downstream portion of the contact surface in the rotation direction precedes the upstream portion, attempts to come into contact with the engaged portion.
Here, when the engaged portion and the contact surface come into contact, the first rotation radius of the preceding downstream portion is different from the second rotation radius of the rear upstream portion. Since the diameter is larger than the radius, a force acts on the contact surface toward the side opposite to the rotation center side with respect to the engaged portion. Therefore, the contact surface moves around the periphery of the engaged portion on the side opposite to the rotation center side. As a result, the engaging portion and the engaged portion are engaged, and the opening/closing member is brought into a closed state.
In this way, by rotating the operating member, the engaging portion can be moved around the engaged portion without applying an additional force to the operating member that causes the engaging portion to go around the engaged portion. Since the opening/closing member is engaged while being guided around the engaging portion and closing the opening/closing member, it is possible to suppress an increase in the operational load required to close the opening/closing member.

第2の態様に係る開閉部材のロック機構は、装置本体に設けられた被係合部と、前記装置本体に回動可能に設けられ、前記装置本体を開閉する開閉部材と、前記開閉部材に回動可能に設けられ、前記被係合部と係合する係合部を備え、前記係合部と前記被係合部とを係合させる操作によって前記開閉部材を閉状態とする操作部材と、前記係合部に形成され、前記係合部が前記被係合部に向かう回動方向において、前記操作部材に作用する操作力を、前記被係合部との接触によって前記開閉部材が閉じる方向の力に変換する接触面と、を有することを特徴とする。 A locking mechanism for an opening/closing member according to a second aspect includes an engaged portion provided on a device main body, an opening/closing member rotatably provided on the device main body and for opening/closing the device main body, and a locking mechanism for an opening/closing member provided in the device main body. an operating member that is rotatably provided and includes an engaging part that engages with the engaged part, and brings the opening/closing member into a closed state by an operation of engaging the engaging part and the engaged part; , the opening/closing member is formed in the engaging portion, and the opening/closing member closes by contacting with the engaged portion in response to an operating force acting on the operating member in the direction of rotation of the engaging portion toward the engaged portion. and a contact surface that converts the force into a directional force.

本態様によれば、前記接触面が、前記回動方向において前記操作部材に作用する操作力を、前記被係合部との接触によって、前記開閉部材が閉じる方向の力に変換する。つまり、前記係合部が前記被係合部の周囲に回り込むような力を前記操作部材に追加で与えなくても、前記操作部材を回動させることで、前記係合部が前記被係合部に案内されて回り込みながら被係合部と係合し、前記開閉部材を閉じるので、前記開閉部材を閉じるのに必要な操作荷重が大きくなるのを抑制することができる。 According to this aspect, the contact surface converts an operating force acting on the operating member in the rotation direction into a force in a direction in which the opening/closing member closes by contacting the engaged portion. In other words, by rotating the operating member, the engaging portion can be moved around the engaged portion without applying an additional force to the operating member that causes the engaging portion to go around the engaged portion. Since the opening/closing member is engaged with the engaged portion while being guided by the opening/closing member, an increase in the operational load required to close the opening/closing member can be suppressed.

第3の態様に係る開閉部材のロック機構は、第1の態様又は第2の態様において、前記接触面は、傾斜面であり、前記係合部の前記回動方向における前記接触面よりも上流側に位置する部位には、前記係合部の回動軌跡の接線との成す第1角度が、前記接触面における前記係合部の回動軌跡の接線との成す第2角度よりも小さい係合面が形成されている、ことを特徴とする。 In the locking mechanism for an opening/closing member according to a third aspect, in the first aspect or the second aspect, the contact surface is an inclined surface, and the contact surface is located upstream of the contact surface in the rotation direction of the engaging portion. The portion located on the side has a first angle formed with a tangent to the rotation trajectory of the engagement portion that is smaller than a second angle formed with a tangent to the rotation trajectory of the engagement portion on the contact surface. It is characterized in that a mating surface is formed.

本態様によれば、前記係合面が前記接触面よりも前記回動方向の上流側に位置しているので、前記被係合部と前記接触面とが接触した後で、前記被係合部と前記係合面とが接触する。ここで、前記接触面は、前記係合部が前記被係合部に対して回り込むように、前記被係合部に対して距離を変えながら相対移動しようとする。
一方、前記係合面は、前記係合部の回動軌跡の接線との成す第1角度が、該接線と前記接触面との成す第2角度よりも小さい。このため、前記係合面は、前記係合部の回動軌跡に合わせて前記被係合部を保持しようとするので、前記係合部と前記被係合部との係合状態を保持することができる。
According to this aspect, since the engaging surface is located upstream of the contact surface in the rotation direction, after the engaged portion and the contact surface come into contact, the engaged portion and the engagement surface are in contact with each other. Here, the contact surface attempts to move relative to the engaged part while changing the distance so that the engaging part wraps around the engaged part.
On the other hand, a first angle between the engagement surface and a tangent to the rotational locus of the engagement portion is smaller than a second angle between the tangent and the contact surface. Therefore, the engaging surface attempts to hold the engaged portion in accordance with the rotation locus of the engaging portion, and thus maintains the engaged state between the engaging portion and the engaged portion. be able to.

第4の態様に係る開閉部材のロック機構は、第1の態様から第3の態様のいずれか1つにおいて、前記操作部材は、前記開閉部材が閉状態の場合に前記開閉部材の内側に収容され、前記被係合部と前記接触面とが接触した場合に前記開閉部材よりも外側に突出する、ことを特徴とする。 In the locking mechanism for an opening/closing member according to a fourth aspect, in any one of the first to third aspects, the operating member is housed inside the opening/closing member when the opening/closing member is in a closed state. and protrudes outward from the opening/closing member when the engaged portion and the contact surface come into contact with each other.

前記被係合部と前記接触面とが接触した状態では、前記開閉部材は開状態となっている。
ここで、本態様によれば、前記操作部材が操作者によって操作され、前記被係合部と前記接触面とが接触した場合に、前記操作部材の一部が前記開閉部材よりも外側に突出するので、前記開閉部材が開状態であることを操作者に認識させることができる。なお、前記操作部材の回動を続けることで、前記係合部と前記被係合部とが係合し、前記開閉部材が閉状態となる。
When the engaged portion and the contact surface are in contact with each other, the opening/closing member is in an open state.
Here, according to this aspect, when the operating member is operated by the operator and the engaged portion and the contact surface come into contact, a part of the operating member protrudes outward from the opening/closing member. Therefore, the operator can recognize that the opening/closing member is in the open state. Note that by continuing to rotate the operating member, the engaging portion and the engaged portion are engaged, and the opening/closing member is brought into a closed state.

第5の態様に係る開閉部材のロック機構は、第4の態様において、前記開閉部材には、被押圧部が設けられ、前記装置本体には、前記被押圧部と接触して前記開閉部材を開放側へ押圧することで、前記被係合部と前記接触面とが接触する状態を保持させる押圧部が設けられている、ことを特徴とする。 In the locking mechanism for an opening/closing member according to a fifth aspect, in the fourth aspect, the opening/closing member is provided with a pressed portion, and the device main body is provided with a pressed portion that contacts the pressed portion and locks the opening/closing member. The device is characterized in that a pressing portion is provided that maintains a state in which the engaged portion and the contact surface are in contact by pressing toward the open side.

本態様によれば、前記押圧部が前記被押圧部と接触して、前記開閉部材を開放側へ押圧することで、前記開閉部材からの力と前記押圧部からの力とが釣り合った状態となる。これにより、前記被係合部と前記接触面とが接触する状態が保持される。そして、前記操作部材が回動されることで、前記係合部が前記被係合部と係合され、前記開閉部材が閉状態となる。このように、前記被係合部と前記接触面とが接触する開状態において、一時的に前記操作部材の回動が停止されるので、前記押圧部を有していない構成に比べて、前記開閉部材が自重によって突然、閉状態となるのを抑制することができる。 According to this aspect, the pressing part contacts the pressed part and presses the opening/closing member toward the open side, so that the force from the opening/closing member and the force from the pressing part are balanced. Become. This maintains the state in which the engaged portion and the contact surface are in contact with each other. When the operating member is rotated, the engaging portion is engaged with the engaged portion, and the opening/closing member is brought into a closed state. In this way, in the open state where the engaged part and the contact surface are in contact, the rotation of the operating member is temporarily stopped, so compared to a configuration that does not have the pressing part, It is possible to prevent the opening/closing member from suddenly closing due to its own weight.

第6の態様に係る開閉部材のロック機構は、第1の態様から第5の態様のいずれか1つにおいて、前記開閉部材又は前記装置本体には、前記操作部材に前記回動方向の回動力を付与する付与部材が設けられている、ことを特徴とする。 In the locking mechanism for an opening/closing member according to a sixth aspect, in any one of the first to fifth aspects, the opening/closing member or the device main body has a rotational force applied to the operating member in the rotational direction. It is characterized by being provided with an imparting member that imparts.

本態様によれば、前記操作部材に初めから前記付与部材による前記回動方向の回動力が付与されているので、前記操作部材を前記回動方向へ操作するために必要な操作力を減らすことができる。 According to this aspect, since the rotational force in the rotational direction by the application member is applied to the operation member from the beginning, the operation force required to operate the operation member in the rotational direction can be reduced. I can do it.

第7の態様に係る開閉部材のロック機構は、第1の態様から第6の態様のいずれか1つにおいて、前記操作部材には、前記操作部材の操作を促す表示がされた表示部が設けられている、ことを特徴とする。 In the locking mechanism for an opening/closing member according to a seventh aspect, in any one of the first to sixth aspects, the operating member is provided with a display section on which a display prompting operation of the operating member is displayed. It is characterized by being

本態様によれば、操作者が表示部を見ることで、前記操作部材の操作が促される。つまり、前記操作部材が操作すべきで対象であることを操作者に認識させることができる。 According to this aspect, the operator is prompted to operate the operating member by looking at the display section. In other words, the operator can be made aware that the operating member is the object to be operated.

第8の態様に係る開閉部材のロック機構は、第1の態様から第7の態様のいずれか1つにおいて、前記操作部材は、前記回動方向において前記係合部よりも上流側に配置され且つ把持されながら操作される把持部を有し、前記操作部材の回動中心から前記接触面までの第1距離よりも、前記回動中心から前記把持部の先端までの第2距離の方が長い、ことを特徴とする。 In the locking mechanism for an opening/closing member according to an eighth aspect, in any one of the first to seventh aspects, the operating member is arranged upstream of the engaging portion in the rotation direction. and a grip part that is operated while being gripped, and a second distance from the rotation center to the tip of the grip part is longer than a first distance from the rotation center of the operating member to the contact surface. Characterized by being long.

本態様によれば、操作される前記把持部の前記第2距離の方が、係合される前記接触面までの前記第1距離よりも長い。つまり、前記操作部材における支点から力点までの距離が、支点から作用点までの距離よりも長いので、前記第1距離が前記第2距離よりも長い構成に比べて、前記係合部と前記被係合部との係合に必要な操作力を低減することができる。 According to this aspect, the second distance of the grip portion to be operated is longer than the first distance to the contact surface to be engaged. In other words, since the distance from the fulcrum to the point of force on the operating member is longer than the distance from the fulcrum to the point of action, the engagement portion and the subject The operating force required for engagement with the engagement portion can be reduced.

第9の態様に係る開閉部材のロック機構は、第8の態様において、前記被係合部は、前記係合部よりも前記開閉部材の幅方向の外側に位置し、前記把持部は、前記幅方向の内側へ向けて延びている、ことを特徴とする。 In the locking mechanism for an opening/closing member according to a ninth aspect, in the eighth aspect, the engaged portion is located outside the engaging portion in the width direction of the opening/closing member, and the gripping portion is located outside the engaging portion in the width direction of the opening/closing member. It is characterized by extending inward in the width direction.

本態様によれば、前記把持部が前記幅方向の外側へ向けて延びる構成に比べて、前記幅方向における前記把持部の長さをより長く設定することができる。つまり、前記操作部材を操作するのに必要な操作力を低減することができる。 According to this aspect, the length of the gripping portion in the width direction can be set longer than in a configuration in which the gripping portion extends outward in the width direction. In other words, the operating force required to operate the operating member can be reduced.

第10の態様に係る媒体搬送装置は、第1の態様から第9の態様のいずれか1つに記載の開閉部材のロック機構と、前記開閉部材が前記装置本体を閉じることで形成される搬送路に設けられ、媒体を搬送する搬送部材と、を有することを特徴とする。 A medium conveying device according to a tenth aspect includes a locking mechanism for an opening/closing member according to any one of the first to ninth aspects, and a conveying device formed by closing the device main body by the opening/closing member. It is characterized by having a conveying member provided in the path and conveying the medium.

本態様によれば、前記媒体搬送装置において、第1の態様から第9の態様のいずれか1つに記載の開閉部材のロック機構と同様の作用効果を得ることができる。 According to this aspect, in the medium conveying device, it is possible to obtain the same effect as the locking mechanism for the opening/closing member described in any one of the first to ninth aspects.

第11の態様に係る原稿読取装置は、請求項10に記載の媒体搬送装置と、前記媒体としての原稿の情報を読み取る読取部と、を有することを特徴とする。 A document reading device according to an eleventh aspect includes the medium conveyance device according to claim 10 and a reading section that reads information on a document as the medium.

本態様によれば、前記原稿読取装置において、第10の態様に記載の媒体搬送装置と同様の作用効果を得ることができる。 According to this aspect, the same effects as the medium conveying device described in the tenth aspect can be obtained in the document reading device.

第12の態様に係る記録装置は、第10の態様に記載の媒体搬送装置又は第11の態様に記載の原稿読取装置と、受け取った情報に基づいて、媒体に情報を記録する記録部と、を有することを特徴とする。 A recording device according to a twelfth aspect includes: the medium conveying device according to the tenth aspect or the document reading device according to the eleventh aspect; and a recording section that records information on a medium based on received information. It is characterized by having the following.

本態様によれば、前記記録装置において、第10の態様に記載の媒体搬送装置又は第11の態様に記載の原稿読取装置と同様の作用効果を得ることができる。 According to this aspect, in the recording apparatus, the same effects as those of the medium conveying device according to the tenth aspect or the document reading device according to the eleventh aspect can be obtained.

[実施形態1]
以下に、本発明に係る開閉部材のロック機構、媒体搬送装置、原稿読取装置、及び記録装置の一実施形態としての実施形態1について、添付図面を参照して詳細に説明する。各図において表すX-Y-Z座標系では、後述するプリンター10について、X軸方向が装置幅方向であり、Y軸方向が装置奥行き方向であり、Z軸方向が装置高さ方向である。なお、装置幅方向において、正面から見た場合の左側と右側とを区別する場合には、左側を+X側と称し、右側を-X側と称する。装置奥行き方向において、手前側と奥側とを区別する場合には、手前側を+Y側と称し、奥側を-Y側と称する。装置高さ方向において、上側と下側とを区別する場合には、上側を+Z側と称し、下側を-Z側と称する。
[Embodiment 1]
EMBODIMENT OF THE INVENTION Below, Embodiment 1 as an embodiment of the locking mechanism of the opening/closing member, the medium conveyance device, the document reading device, and the recording device according to the present invention will be described in detail with reference to the accompanying drawings. In the XYZ coordinate system shown in each figure, the X-axis direction is the device width direction, the Y-axis direction is the device depth direction, and the Z-axis direction is the device height direction for the printer 10 to be described later. In addition, in the device width direction, when distinguishing between the left side and the right side when viewed from the front, the left side is referred to as the +X side and the right side is referred to as the -X side. When distinguishing between the front side and the back side in the depth direction of the device, the front side is called the +Y side, and the back side is called the -Y side. When distinguishing between the upper side and the lower side in the device height direction, the upper side is referred to as the +Z side, and the lower side is referred to as the -Z side.

<<プリンターの概略>>
図1には、記録装置の一例としてのプリンター10が表されている。プリンター10は、媒体の一例としての用紙Pに各種の情報を記録する。用紙Pに記録される各種の情報には、文字情報、画像情報がある。また、プリンター10は、カセット収容部12と、画像記録部14と、操作パネル16と、スキャナー部20とを備えている。
<<Printer overview>>
FIG. 1 shows a printer 10 as an example of a recording device. The printer 10 records various information on paper P, which is an example of a medium. Various types of information recorded on the paper P include character information and image information. The printer 10 also includes a cassette storage section 12, an image recording section 14, an operation panel 16, and a scanner section 20.

カセット収容部12は、用紙Pを収容する複数の収容カセット13を有する。なお、プリンター10の内部には、図示を省略する搬送経路が形成されている。用紙Pは、この搬送経路に沿って搬送される。
画像記録部14は、記録部の一例であり、図示を省略するラインヘッドと、制御部18とを含んで構成されている。ラインヘッドは、液体の一例としてのインクを用紙Pに吐出することで用紙Pに各種の情報を記録する、所謂インクジェット方式の記録ヘッドとして構成されている。また、画像記録部14は、後述するスキャナー部20で読み取られた媒体の一例としての原稿Gの情報に基づいて、用紙Pに情報を記録する。
The cassette accommodating section 12 includes a plurality of accommodating cassettes 13 that accommodate paper P. Note that a transport path (not shown) is formed inside the printer 10. The paper P is conveyed along this conveyance path.
The image recording unit 14 is an example of a recording unit, and includes a line head (not shown) and a control unit 18. The line head is configured as a so-called inkjet recording head that records various information on the paper P by ejecting ink, which is an example of liquid, onto the paper P. Further, the image recording section 14 records information on the paper P based on the information of the document G, which is an example of a medium, read by the scanner section 20, which will be described later.

制御部18は、図示を省略するCPU(Central Processing Unit)、ROM(Read Only Memory)、RAM(Random Access Memory)及びストレージを含んで構成され、プリンター10における用紙Pの搬送や、用紙Pへの各種の情報を記録する動作を制御する。また、制御部18は、操作パネル16から入力された情報に基づいて、プリンター10における各種動作の制御を行うことができる。プリンター10では、後述するスキャナー部20又はADFユニット30と同様の作用効果が得られる。 The control unit 18 is configured to include a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and a storage (not shown), and is responsible for conveying the paper P in the printer 10 and for transferring the paper P to the paper P. Controls the operation of recording various information. Further, the control unit 18 can control various operations in the printer 10 based on information input from the operation panel 16. The printer 10 can provide the same effects as the scanner section 20 or the ADF unit 30, which will be described later.

[スキャナー部]
スキャナー部20は、原稿読取装置の一例であり、原稿Gの情報を読み取る。スキャナー部20で読み取られた原稿Gの情報は、制御部18のRAM又はストレージに記憶される。具体的には、スキャナー部20は、スキャナー本体22と、媒体搬送装置の一例としてのADF(Auto Document Feeder)ユニット30とを有する。スキャナー部20では、ADFユニット30と同様の作用効果が得られる。
[Scanner section]
The scanner unit 20 is an example of a document reading device, and reads information on the document G. Information on the document G read by the scanner section 20 is stored in the RAM or storage of the control section 18. Specifically, the scanner section 20 includes a scanner main body 22 and an ADF (Auto Document Feeder) unit 30 as an example of a medium transport device. The scanner section 20 provides the same effects as the ADF unit 30.

〔スキャナー本体〕
スキャナー本体22は、筐体23と、筐体23の内部に設けられた読取部の一例としてのセンサー24と、センサー24を覆う図示を省略するガラス板とを含んで構成されている。センサー24は、光学式のセンサーであり、X軸方向に移動し又は移動停止状態で、原稿Gの情報を読み取る。センサー24によって読み取られた情報は、制御部18に送られる。
[Scanner body]
The scanner body 22 includes a housing 23, a sensor 24 as an example of a reading section provided inside the housing 23, and a glass plate (not shown) that covers the sensor 24. The sensor 24 is an optical sensor, and reads information on the document G while moving in the X-axis direction or while not moving. Information read by the sensor 24 is sent to the control unit 18.

〔ADFユニット〕
ADFユニット30は、筐体23の-Y側端部に回動可能に連結され、筐体23に対して+Z側に配置されている。また、ADFユニット30では、後述するロック機構部50(図5)と同様の作用効果が得られる。
図2に表すように、ADFユニット30は、本体部32と、ロック機構部50と、複数の搬送ローラー46とを有する。
[ADF unit]
The ADF unit 30 is rotatably connected to the -Y side end of the housing 23 and is arranged on the +Z side with respect to the housing 23. Furthermore, the ADF unit 30 provides the same effects as the locking mechanism section 50 (FIG. 5), which will be described later.
As shown in FIG. 2, the ADF unit 30 includes a main body 32, a locking mechanism 50, and a plurality of conveyance rollers 46.

<本体部>
本体部32は、装置本体の一例である。また、本体部32は、ベースフレーム33と、2つのサイドフレーム36と、供給トレイ38と、排出トレイ42と、突出部材44と、外装カバー45とを含んで構成されている。ベースフレーム33は、Z軸方向を厚さ方向としてX-Y面に沿って広がっている。なお、本体部32におけるY軸方向の中央に対する+Y側の部分と、-Y側の部分とは、一例として、対称に形成されている。
<Body part>
The main body portion 32 is an example of a device main body. Further, the main body portion 32 includes a base frame 33, two side frames 36, a supply tray 38, a discharge tray 42, a protruding member 44, and an exterior cover 45. The base frame 33 extends along the XY plane with the Z-axis direction as the thickness direction. Note that, for example, a portion of the main body portion 32 on the +Y side and a portion on the −Y side with respect to the center in the Y-axis direction are formed symmetrically.

2つのサイドフレーム36は、ベースフレーム33上にY軸方向に間隔をあけて直立している。なお、Y軸方向から見た場合に、サイドフレーム36の中央に対して+X側で且つ+Z側となる部位を第1角部36Aと称する。また、サイドフレーム36の中央に対して-X側で且つ+Z側となる部位を第2角部36Bと称する。
2つの第2角部36Bには、Y軸方向を軸方向とする円柱状の軸部材37が架設されている。
The two side frames 36 stand upright on the base frame 33 with an interval in the Y-axis direction. Note that, when viewed from the Y-axis direction, a portion on the +X side and +Z side with respect to the center of the side frame 36 is referred to as a first corner portion 36A. Further, a portion on the −X side and +Z side with respect to the center of the side frame 36 is referred to as a second corner portion 36B.
A columnar shaft member 37 whose axial direction is in the Y-axis direction is installed between the two second corners 36B.

供給トレイ38は、読み取り前の原稿Gが載置される載置部として機能する。
排出トレイ42は、ベースフレーム33に対する+Z側で且つ供給トレイ38に対する-Z側に配置されている。
2つのサイドフレーム36の間には、原稿Gが搬送される搬送路Tの-Z側部分を構成する経路下壁41が設けられている。
The supply tray 38 functions as a placement section on which the document G before being read is placed.
The discharge tray 42 is arranged on the +Z side with respect to the base frame 33 and on the -Z side with respect to the supply tray 38.
A lower path wall 41 is provided between the two side frames 36 and constitutes a -Z side portion of the transport path T along which the original G is transported.

図4に表す突出部材44は、一例として、円柱状の部材で構成されている。また、突出部材44は、サイドフレーム36における第1角部36Aに対する-Z側の部位で且つZ軸方向の中央下部から、本体部32のY軸方向の中央に向けて突出されている。なお、突出部材44は、搬送路Tよりも外側に位置する。 The protruding member 44 shown in FIG. 4 is, for example, a cylindrical member. Furthermore, the protruding member 44 protrudes toward the center of the main body portion 32 in the Y-axis direction from a lower center in the Z-axis direction at a portion of the side frame 36 on the −Z side with respect to the first corner portion 36A. Note that the protruding member 44 is located outside the conveyance path T.

図3に表す外装カバー45は、サイドフレーム36の搬送路Tに臨む部位を除いて、サイドフレーム36を覆っている。このため、後述するカバー部54の閉状態では、搬送路Tが外装カバー45及びカバー部54によって覆われるようになっている。 The exterior cover 45 shown in FIG. 3 covers the side frame 36 except for the portion of the side frame 36 facing the conveyance path T. Therefore, when the cover section 54 is in a closed state, which will be described later, the conveyance path T is covered by the exterior cover 45 and the cover section 54.

<搬送ローラー>
図4に表す複数の搬送ローラー46は、搬送部材の一例である。また、複数の搬送ローラー46は、後述するカバー部54が本体部32を閉じることで形成される搬送路Tに設けられている。また、複数の搬送ローラー46は、一例として、樹脂製であり、本体部32にY軸方向を軸方向として、図示を省略する駆動部によって回転可能に設けられている。また、複数の搬送ローラー46は、後述する補助ローラー66(図3)と共に原稿Gを挟み、回転に伴って、原稿Gを搬送路Tに沿って搬送するようになっている。
<Conveyance roller>
The plurality of conveyance rollers 46 shown in FIG. 4 are an example of a conveyance member. Further, the plurality of conveyance rollers 46 are provided in a conveyance path T formed by closing the main body section 32 with a cover section 54, which will be described later. Further, the plurality of conveyance rollers 46 are made of resin, for example, and are rotatably provided in the main body 32 with the Y-axis direction as the axial direction by a drive unit (not shown). Further, the plurality of transport rollers 46 sandwich the original G together with an auxiliary roller 66 (FIG. 3) to be described later, and transport the original G along the transport path T as they rotate.

搬送路Tは、本体部32内において原稿Gが搬送される経路であり、Y軸方向の+Y側から見た場合に、全体がC字状に形成されている。また、搬送路Tは、供給トレイ38から排出トレイ42まで延びている。複数の搬送ローラー46は、搬送路Tの内側に配置されている。 The conveyance path T is a path along which the original G is conveyed within the main body portion 32, and is formed in a C-shape as a whole when viewed from the +Y side in the Y-axis direction. Further, the conveyance path T extends from the supply tray 38 to the discharge tray 42. The plurality of conveyance rollers 46 are arranged inside the conveyance path T.

<ロック機構部>
図5に表すロック機構部50は、開閉部材のロック機構の一例である。また、ロック機構部50は、ピン部材52と、カバー部54と、操作部材72と、接触面86とを有する。さらに、ロック機構部50は、被押圧部96と、押圧部102と、引張バネ108とを有する。
<Lock mechanism part>
A locking mechanism section 50 shown in FIG. 5 is an example of a locking mechanism for an opening/closing member. Further, the locking mechanism section 50 includes a pin member 52, a cover section 54, an operating member 72, and a contact surface 86. Further, the locking mechanism section 50 includes a pressed section 96, a pressing section 102, and a tension spring 108.

((ピン部材))
図3に表すピン部材52は、被係合部の一例であり、本体部32に設けられている。具体的には、ピン部材52は、一例として、円柱状の部材で構成されている。また、ピン部材52は、サイドフレーム36における第1角部36Aに対する-X側で且つ-Z側となる部位から、本体部32のY軸方向の中央に向けて突出されている。ピン部材52は、外周面52Aを有する。また、ピン部材52は、搬送路Tよりも外側に位置する。
((pin member))
The pin member 52 shown in FIG. 3 is an example of an engaged portion, and is provided in the main body portion 32. Specifically, the pin member 52 is comprised of a cylindrical member, for example. Further, the pin member 52 protrudes toward the center of the main body portion 32 in the Y-axis direction from a portion of the side frame 36 that is on the −X side and the −Z side with respect to the first corner portion 36A. The pin member 52 has an outer peripheral surface 52A. Further, the pin member 52 is located outside the conveyance path T.

((カバー部))
カバー部54は、開閉部材の一例であり、本体部32に回動可能に設けられ、本体部32の搬送路Tの一部を開閉する。具体的には、カバー部54は、上壁56と、側壁58と、一対の縦壁62と、経路上壁64と、複数の補助ローラー66と、送込ローラー68とを含んで構成されている。なお、各部材の配置については、カバー部54が本体部32を閉じる閉状態にあるものとして説明する。
((Cover part))
The cover part 54 is an example of an opening/closing member, is rotatably provided on the main body part 32, and opens and closes a part of the conveyance path T of the main body part 32. Specifically, the cover portion 54 includes an upper wall 56, a side wall 58, a pair of vertical walls 62, a path upper wall 64, a plurality of auxiliary rollers 66, and a feed roller 68. There is. Note that the arrangement of each member will be described assuming that the cover portion 54 is in a closed state in which the main body portion 32 is closed.

図5に表す上壁56は、カバー部54の閉状態において、X-Y面に沿って広がる板状に形成されている。上壁56の上面の高さは、外装カバー45の上面の高さと同じとなっている。
側壁58は、上壁56の+X側端部から-Z側に延びており、Y-Z面に沿って広がる板状に形成されている。
The upper wall 56 shown in FIG. 5 is formed into a plate shape that extends along the XY plane when the cover portion 54 is in the closed state. The height of the top surface of the top wall 56 is the same as the height of the top surface of the exterior cover 45.
The side wall 58 extends from the +X end of the upper wall 56 toward the −Z side, and is formed into a plate shape that extends along the YZ plane.

図1に表すように、カバー部54には、上壁56の+X側端部と側壁58の+Z側端部とに跨って、窪み部59が形成されている。窪み部59の形状及び大きさは、後述する把持部92を収容可能な形状及び大きさとされている。また、窪み部59は、操作者が操作を行い易いように、カバー部54におけるY軸方向の中央に対して+Y側となる操作パネル16側に位置している。 As shown in FIG. 1, a recessed portion 59 is formed in the cover portion 54, spanning the +X side end of the upper wall 56 and the +Z side end of the side wall 58. The shape and size of the recessed portion 59 are such that a grip portion 92, which will be described later, can be accommodated therein. Further, the recessed portion 59 is located on the operation panel 16 side, which is on the +Y side with respect to the center of the cover portion 54 in the Y-axis direction, so that the operator can easily perform the operation.

図5に表す縦壁62は、上壁56の下面から-Z側へ延びており、X-Z面に沿って広がる板状に形成されている。また、一対の縦壁62には、後述するシャフト73が挿通される図示を省略する貫通孔が形成されている。 The vertical wall 62 shown in FIG. 5 extends from the lower surface of the upper wall 56 toward the −Z side, and is formed in a plate shape that extends along the XZ plane. Furthermore, a through hole (not shown) is formed in the pair of vertical walls 62, into which a shaft 73 (described later) is inserted.

図3に表す経路上壁64は、一対の縦壁62の-Z側部分をY軸方向に繋いでいる。また、経路上壁64は、経路下壁41と間隔をあけて対向している。これにより、カバー部54の閉状態では、カバー部54が経路下壁41を+Z側から覆うと共に、経路下壁41と経路上壁64とで搬送路Tが形成されるようになっている。 The path upper wall 64 shown in FIG. 3 connects the −Z side portions of the pair of vertical walls 62 in the Y-axis direction. Further, the upper route wall 64 faces the lower route wall 41 with a space therebetween. As a result, when the cover part 54 is in the closed state, the cover part 54 covers the lower path wall 41 from the +Z side, and the lower path wall 41 and the upper path wall 64 form a transport path T.

複数の補助ローラー66は、一例として、外周部にゴム層が形成されたローラーとして構成されている。また、複数の補助ローラー66は、図示を省略するブラケット及びベアリングによって支持されることで、経路上壁64にY軸方向を軸方向として回転可能に設けられている。また、複数の補助ローラー66は、カバー部54の閉状態で且つ原稿Gが無い状態において、複数の搬送ローラー46と接触してニップ部を形成している。
送込ローラー68は、搬送路Tにおける複数の補助ローラー66よりも上流側において、経路上壁64にY軸方向を軸方向として回転可能に設けられている。また、送込ローラー68は、複数の原稿Gから1枚の原稿Gを分離して、搬送路Tに送り込む。
For example, the plurality of auxiliary rollers 66 are configured as rollers having a rubber layer formed on the outer periphery. Further, the plurality of auxiliary rollers 66 are supported by brackets and bearings (not shown), and are rotatably provided on the path upper wall 64 with the Y-axis direction as the axial direction. Further, the plurality of auxiliary rollers 66 come into contact with the plurality of transport rollers 46 to form a nip portion when the cover section 54 is in the closed state and there is no document G.
The feed roller 68 is rotatably provided on the path upper wall 64 on the upstream side of the plurality of auxiliary rollers 66 in the conveyance path T, with the Y-axis direction being the axial direction. Further, the feed roller 68 separates one document G from the plurality of documents G and feeds it into the conveyance path T.

((操作部材))
図5に表す操作部材72は、一例として、シャフト73と、ロック部材74と、操作レバー77とを有する。ロック部材74は、+Y側と-Y側とにそれぞれ1つずつ設けられているが、+Y側のロック部材74を図示して、-Y側のロック部材74の図示を省略している。なお、以後の説明では、後述する係合部80がピン部材52に向かう回動方向を+R方向と称する。
((operating member))
The operating member 72 shown in FIG. 5 includes, as an example, a shaft 73, a locking member 74, and an operating lever 77. One lock member 74 is provided on the +Y side and one on the −Y side, but the lock member 74 on the +Y side is illustrated, and the illustration of the lock member 74 on the −Y side is omitted. In the following description, the rotation direction in which the engaging portion 80, which will be described later, moves toward the pin member 52 will be referred to as the +R direction.

(シャフト)
シャフト73は、一部を除いて円柱状に形成されており、Y軸方向を軸方向として延びている。また、シャフト73は、一対の縦壁62に、図示を省略するベアリングを用いて回動可能に設けられている。シャフト73の軸方向における2つのロック部材74の間に位置する部位には、操作レバー77が取り付けられる被取付部が形成されている。なお、被取付部の図示は省略する。
(shaft)
The shaft 73 is formed in a cylindrical shape except for a portion, and extends with the Y-axis direction as the axial direction. Further, the shaft 73 is rotatably provided on the pair of vertical walls 62 using bearings (not shown). An attached portion to which the operating lever 77 is attached is formed at a portion of the shaft 73 located between the two locking members 74 in the axial direction. Note that illustration of the attached part is omitted.

(ロック部材)
図6に表すように、ロック部材74は、一例として、取付部76と、第1アーム部78と、第2アーム部79と、突出部84とが一体化された構成の部材であり、Y軸方向を厚さ方向とする板状に形成されている。
取付部76には、シャフト73が挿入される貫通孔76Aが形成されている。貫通孔76Aにシャフト73が挿入されることで、シャフト73に対する取付部76の相対的な回動が規制されている。なお、シャフト73の回動中心となる位置を点Cで表す。
(Lock member)
As shown in FIG. 6, the locking member 74 is, for example, a member having a structure in which a mounting portion 76, a first arm portion 78, a second arm portion 79, and a protruding portion 84 are integrated. It is formed into a plate shape with the thickness direction being in the axial direction.
A through hole 76A into which the shaft 73 is inserted is formed in the attachment portion 76. By inserting the shaft 73 into the through hole 76A, relative rotation of the attachment portion 76 with respect to the shaft 73 is restricted. Note that a point C represents the position of the rotation center of the shaft 73.

第1アーム部78は、取付部76からシャフト73の径方向に延びている。
第2アーム部79は、第1アーム部78のシャフト73側とは反対側の端部から、第1アーム部78と交差する方向に延びている。第2アーム部79の長さは、第1アーム部78の長さよりも長い。また、第2アーム部79は、+R方向において、第1アーム部78よりも下流側に位置するように延びている。第2アーム部79の中央部には、Y軸方向に貫通する貫通孔82が形成されている。なお、第2アーム部79の+R方向下流側に位置する側面を側面83と称する。
The first arm portion 78 extends from the attachment portion 76 in the radial direction of the shaft 73.
The second arm portion 79 extends from the end of the first arm portion 78 on the side opposite to the shaft 73 side in a direction intersecting the first arm portion 78 . The length of the second arm portion 79 is longer than the length of the first arm portion 78. Further, the second arm portion 79 extends so as to be located downstream of the first arm portion 78 in the +R direction. A through hole 82 penetrating in the Y-axis direction is formed in the center of the second arm portion 79 . Note that the side surface of the second arm portion 79 located on the downstream side in the +R direction is referred to as a side surface 83.

突出部84は、第2アーム部79の第1アーム部78側とは反対側の端部から、+R方向に突出された部位である。また、突出部84の外周部には、係合面85と、接触面86と、斜面87とが形成されている。
ここで、側面83と、係合面85と、接触面86とで、係合部80が形成されている。換言すると、操作部材72は、第2アーム部79と突出部84とから成るL字状の係合部80を備えている。係合部80は、カバー部54の閉状態において、ピン部材52と係合する部位である。
The protruding portion 84 is a portion that protrudes in the +R direction from the end of the second arm portion 79 on the opposite side to the first arm portion 78 side. Furthermore, an engagement surface 85, a contact surface 86, and a slope 87 are formed on the outer peripheral portion of the protrusion 84.
Here, the engaging portion 80 is formed by the side surface 83, the engaging surface 85, and the contact surface 86. In other words, the operating member 72 includes an L-shaped engagement portion 80 that includes the second arm portion 79 and the protrusion portion 84 . The engaging portion 80 is a portion that engages with the pin member 52 when the cover portion 54 is in the closed state.

図7に表す係合面85は、係合部80の+R方向における接触面86よりも上流側に位置する部位に形成されている。また、係合面85は、Y軸方向から見た場合に、側面83の-Z側端から側面83に対してほぼ垂直に、図7ではピン部材52側へ延びている。係合部80において、側面83と係合面85とが交わる位置を点Dで表す。また、点C(図6)を中心とする点Dの円弧状の回動軌跡を係合部80の第1回動軌跡K1と称する。また、第1回動軌跡K1の点Dにおける接線を第1接線M1と称する。Y軸方向から見た場合に、第1接線M1と係合面85とが成す角度を第1角度θ1(度)と称する。 The engagement surface 85 shown in FIG. 7 is formed at a portion of the engagement portion 80 located upstream of the contact surface 86 in the +R direction. Further, the engagement surface 85 extends from the −Z side end of the side surface 83 almost perpendicularly to the side surface 83, toward the pin member 52 side in FIG. 7, when viewed from the Y-axis direction. In the engaging portion 80, a point D represents a position where the side surface 83 and the engaging surface 85 intersect. Further, the arc-shaped rotation locus of point D centered on point C (FIG. 6) is referred to as a first rotation locus K1 of the engaging portion 80. Further, the tangent at point D to the first rotation locus K1 is referred to as a first tangent M1. When viewed from the Y-axis direction, the angle formed by the first tangent M1 and the engagement surface 85 is referred to as a first angle θ1 (degrees).

また、Y軸方向から見た場合に、係合面85と接触面86とが交わる位置を点Eで表す。線分DEに相当する係合面85の長さは、ピン部材52の直径の長さよりも長い。X-Z面におけるピン部材52の中心位置を点Qで表す。また、点Qを通りX軸方向に延びる仮想線を仮想線Hと称する。点Qを通りZ軸方向に延びる仮想線を仮想線Vと称する。また、仮想線Hと仮想線Vとによって区画された領域を第1象限S1、第2象限S2、第3象限S3、第4象限S4と称する。なお、接触面86の詳細については、後述する。 Further, when viewed from the Y-axis direction, a point E represents a position where the engagement surface 85 and the contact surface 86 intersect. The length of the engaging surface 85 corresponding to the line segment DE is longer than the diameter of the pin member 52. A point Q represents the center position of the pin member 52 on the XZ plane. Further, an imaginary line passing through point Q and extending in the X-axis direction is referred to as an imaginary line H. A virtual line passing through point Q and extending in the Z-axis direction is referred to as a virtual line V. Further, the regions defined by the virtual line H and the virtual line V are referred to as a first quadrant S1, a second quadrant S2, a third quadrant S3, and a fourth quadrant S4. Note that details of the contact surface 86 will be described later.

斜面87は、接触面86の点E側の端部とは反対側の端部から、第2アーム部79の先端に向けて延びている。また、斜面87の延びる方向は、第2アーム部79の延びる方向と交差している。接触面86と斜面87とが交わる位置を点Fで表す。線分EFの長さは、接触面86の長さに相当する。 The slope 87 extends from the end of the contact surface 86 opposite to the end on the point E side toward the tip of the second arm portion 79 . Further, the direction in which the slope 87 extends intersects the direction in which the second arm portion 79 extends. Point F represents the position where the contact surface 86 and the slope 87 intersect. The length of line segment EF corresponds to the length of contact surface 86.

(操作レバー)
図6に表す操作レバー77は、Y軸方向から見た場合に、一例として、シャフト73から径方向に延びる基部91と、基部91と一体に形成された把持部92とを有する。
(operation lever)
The operating lever 77 shown in FIG. 6 includes, for example, a base 91 extending in the radial direction from the shaft 73 and a gripping part 92 formed integrally with the base 91 when viewed from the Y-axis direction.

基部91の一端部は、シャフト73の既述の被取付部にネジ等を用いて取り付けられている。
把持部92は、-Z側に向けて開口する箱状に形成されている。換言すると、把持部92は、操作者によって-Z側から把持されるように形成されている。Z軸方向から見た場合に、把持部92の外形は、一例として、矩形状となっている。把持部92の大きさは、カバー部54の閉状態において、把持部92が窪み部59(図1)に収容され、カバー部54から外側へ突出されない大きさとされている。
One end portion of the base portion 91 is attached to the aforementioned attached portion of the shaft 73 using a screw or the like.
The grip portion 92 is formed into a box shape that opens toward the −Z side. In other words, the grip portion 92 is formed to be gripped by the operator from the −Z side. When viewed from the Z-axis direction, the outer shape of the grip portion 92 is, for example, a rectangular shape. The size of the grip portion 92 is such that when the cover portion 54 is in the closed state, the grip portion 92 is accommodated in the recess 59 (FIG. 1) and does not protrude outward from the cover portion 54.

具体的には、把持部92は、カバー部54の閉状態において、カバー部54の上面に沿って配置される上壁92Aと、上壁92Aの+X側の端部から-Z側へ延びる縦壁92Bとを含んで構成されている。縦壁92Bは、把持部92の先端に相当する部位である。また、把持部92の中央に対する-Z側且つ-X側の部分は、基部91と一体化されている。 Specifically, when the cover section 54 is in the closed state, the grip section 92 includes an upper wall 92A disposed along the upper surface of the cover section 54, and a vertical section extending from the +X side end of the upper wall 92A toward the -Z side. It is configured to include a wall 92B. The vertical wall 92B is a portion corresponding to the tip of the grip portion 92. In addition, a portion of the gripping portion 92 on the −Z side and −X side with respect to the center is integrated with the base portion 91.

また、把持部92は、+R方向において係合部80よりも上流側に配置されている。換言すると、操作部材72は、+R方向において係合部80よりも上流側に配置され且つ把持されながら回動操作される把持部92を有している。 Moreover, the gripping part 92 is arranged upstream of the engaging part 80 in the +R direction. In other words, the operating member 72 has a gripping portion 92 that is disposed upstream of the engaging portion 80 in the +R direction and is rotated while being gripped.

Y軸方向から見た場合に、操作レバー77の縦壁92Bの-Z側端となる位置を点Aで表す。そして、点Cから点Aまでの距離を第2距離d2(mm)とする。 Point A represents the position of the -Z side end of the vertical wall 92B of the operating lever 77 when viewed from the Y-axis direction. Then, the distance from point C to point A is defined as a second distance d2 (mm).

((接触面))
図6に表す接触面86は、一例として、突出部84の先端部分に形成されている。具体的には、接触面86は、係合部80に形成されており、ピン部材52が係合面85と接触する前に、ピン部材52の外周面52Aと接触する。また、接触面86は、係合部80がピン部材52に向かう+R方向において、下流側の部位(点F)の第1回動半径R1が、上流側の部位(点E)の第2回動半径R2よりも大径となるように形成されている。第1回動半径R1は、線分CFに相当する。第2回動半径R2は、線分CEに相当する。
((contact surface))
The contact surface 86 shown in FIG. 6 is formed at the tip of the protrusion 84, for example. Specifically, the contact surface 86 is formed on the engagement portion 80 and contacts the outer circumferential surface 52A of the pin member 52 before the pin member 52 contacts the engagement surface 85. Further, in the +R direction in which the engaging portion 80 faces the pin member 52, the contact surface 86 has a first rotation radius R1 of the downstream portion (point F) and a second rotation radius of the upstream portion (point E). It is formed to have a larger diameter than the dynamic radius R2. The first rotation radius R1 corresponds to the line segment CF. The second rotation radius R2 corresponds to the line segment CE.

また、接触面86は、+R方向において点Fが点Eよりも下流側に位置するように、Z軸方向に対して傾斜した傾斜面とされている。これにより、接触面86は、+R方向において、操作部材72に作用する操作力を、ピン部材52との接触によってカバー部54が閉じる方向の力に変換する機能を有している。
Y軸方向から見た場合に、点Cから点Fまでの距離を第1距離d1(mm)とする。つまり、d1=R1である。ここで、既述の第2距離d2は、第1距離d1よりも長い。
Further, the contact surface 86 is an inclined surface that is inclined with respect to the Z-axis direction so that point F is located downstream of point E in the +R direction. Thereby, the contact surface 86 has a function of converting the operating force acting on the operating member 72 in the +R direction into a force in the direction in which the cover part 54 closes by contacting with the pin member 52.
When viewed from the Y-axis direction, the distance from point C to point F is defined as a first distance d1 (mm). That is, d1=R1. Here, the second distance d2 mentioned above is longer than the first distance d1.

図7に表す接触面86は、一例として、ピン部材52の外周面52Aのうち、第3象限S3内の外周面52Aと接触するようになっている。換言すると、接触面86は、Z軸方向に沿った重力方向において、点Qよりも下側の外周面52Aと接触するように配置されている。
ここで、点C(図6)を中心とする点Fの円弧状の回動軌跡を係合部80の第2回動軌跡K2と称する。また、第2回動軌跡K2の点Fにおける接線を第2接線M2と称する。Y軸方向から見た場合に、第2接線M2と接触面86とが成す角度を第2角度θ2(度)と称する。既述の第1角度θ1は、第2角度θ2よりも小さい。
As an example, the contact surface 86 shown in FIG. 7 is configured to come into contact with the outer circumferential surface 52A in the third quadrant S3 of the outer circumferential surface 52A of the pin member 52. In other words, the contact surface 86 is arranged so as to contact the outer circumferential surface 52A below the point Q in the direction of gravity along the Z-axis direction.
Here, the arc-shaped rotation locus of point F centered on point C (FIG. 6) is referred to as a second rotation locus K2 of the engaging portion 80. Further, the tangent at point F to the second rotation locus K2 is referred to as a second tangent M2. When viewed from the Y-axis direction, the angle formed by the second tangent M2 and the contact surface 86 is referred to as a second angle θ2 (degrees). The previously mentioned first angle θ1 is smaller than the second angle θ2.

以上、説明したように、図6に表す操作部材72は、カバー部54に回動可能に設けられている。また、操作部材72は、把持部92を操作することで、即ち、係合部80とピン部材52とを係合させる操作によって、カバー部54を閉状態とするように構成されている。また、操作部材72は、カバー部54が閉状態の場合にカバー部54の内側に収容され、ピン部材52と接触面86とが接触した場合に、把持部92がカバー部54よりも外側に突出するように構成されている。 As described above, the operating member 72 shown in FIG. 6 is rotatably provided on the cover portion 54. Further, the operating member 72 is configured to close the cover portion 54 by operating the grip portion 92, that is, by engaging the engaging portion 80 and the pin member 52. Further, the operating member 72 is housed inside the cover part 54 when the cover part 54 is in the closed state, and when the pin member 52 and the contact surface 86 come into contact, the grip part 92 is moved outside the cover part 54. It is designed to stand out.

((被押圧部))
図5に表す被押圧部96は、Y軸方向から見た場合に、筒状部97と、規制部98とが一体に形成された部材として構成されている。また、被押圧部96は、カバー部54に設けられており、後述する押圧部102により押圧される。
((Pressed part))
The pressed portion 96 shown in FIG. 5 is configured as a member in which a cylindrical portion 97 and a regulating portion 98 are integrally formed when viewed from the Y-axis direction. Further, the pressed portion 96 is provided on the cover portion 54 and is pressed by a pressing portion 102, which will be described later.

筒状部97は、円筒状に形成されており、Y軸方向を軸方向として、縦壁62に固定されている。また、筒状部97は、カバー部54の閉状態において、突出部材44に対して+X側且つ-Z側に位置するように、縦壁62において位置決めされている。
規制部98は、筒状部97の外周面の一部から+Z側に向けて延びる部位と、-Z側に向けて湾曲された部位とを含む断面U字状に形成されており、-Z側に向けて開口されている。
カバー部54の閉状態において、規制部98の湾曲された部位の内側には、突出部材44が収容される。換言すると、カバー部54の閉状態において、規制部98は、突出部材44のX軸方向の移動を規制するように構成されている。
The cylindrical portion 97 is formed in a cylindrical shape and is fixed to the vertical wall 62 with the Y-axis direction as the axial direction. Further, the cylindrical portion 97 is positioned on the vertical wall 62 so as to be located on the +X side and the −Z side with respect to the protrusion member 44 when the cover portion 54 is in the closed state.
The regulating portion 98 is formed to have a U-shaped cross section, including a portion extending toward the +Z side from a part of the outer circumferential surface of the cylindrical portion 97 and a portion curved toward the −Z side. It is open towards the side.
When the cover portion 54 is in the closed state, the protruding member 44 is housed inside the curved portion of the restricting portion 98 . In other words, when the cover portion 54 is in the closed state, the restriction portion 98 is configured to restrict movement of the protrusion member 44 in the X-axis direction.

((押圧部))
押圧部102は、本体部32における、突出部材44に対する-Z側の部位に設けられている。また、押圧部102は、基部103と、軸部104と、可動部105と、コイルバネ106とを有する。
((pressing part))
The pressing portion 102 is provided at a portion of the main body portion 32 on the -Z side with respect to the protruding member 44. Further, the pressing portion 102 includes a base portion 103, a shaft portion 104, a movable portion 105, and a coil spring 106.

基部103は、Z軸方向を軸方向とする有底筒状に形成されており、+Z側に向けて開口している。
軸部104は、基部103の底部の中央からZ軸方向に直立している。
可動部105は、-Z側に向けて開口する有底筒状に形成されており、軸部104によってZ軸方向に案内されるようになっている。
コイルバネ106は、基部103内に収容されており、可動部105を+Z側に向けて押圧している。
The base portion 103 is formed into a bottomed cylindrical shape whose axial direction is the Z-axis direction, and is open toward the +Z side.
The shaft portion 104 stands upright from the center of the bottom of the base portion 103 in the Z-axis direction.
The movable portion 105 is formed into a bottomed cylindrical shape that opens toward the −Z side, and is guided in the Z-axis direction by the shaft portion 104.
The coil spring 106 is housed within the base portion 103 and presses the movable portion 105 toward the +Z side.

ここで、押圧部102は、筒状部97と接触してカバー部54を開放側へ押圧することで、カバー部54からの力(荷重)と釣り合う押圧力をカバー部54に作用させる。そして、押圧部102は、カバー部54が閉状態となる前の段階において、ピン部材52と接触面86とが接触する状態を保持させるようになっている。 Here, the pressing portion 102 contacts the cylindrical portion 97 and presses the cover portion 54 toward the open side, thereby applying a pressing force to the cover portion 54 that balances the force (load) from the cover portion 54 . The pressing portion 102 maintains the state in which the pin member 52 and the contact surface 86 are in contact with each other before the cover portion 54 is in the closed state.

((引張バネ))
引張バネ108は、付与部材の一例である。引張バネ108の一端部は、縦壁62に取り付けられている。引張バネ108の他端部は、第2アーム部79の貫通孔82の周縁部に取り付けられている。つまり、引張バネ108は、一例として、カバー部54に設けられている。また、引張バネ108は、操作部材72に+R方向の回動力を付与している。
((Tension spring))
The tension spring 108 is an example of a providing member. One end of the tension spring 108 is attached to the vertical wall 62. The other end of the tension spring 108 is attached to the peripheral edge of the through hole 82 of the second arm portion 79. That is, the tension spring 108 is provided in the cover part 54, as an example. Further, the tension spring 108 applies a rotational force in the +R direction to the operating member 72.

((指示シール))
図8に表すように、操作部材72には、表示部の一例としての指示シール110が設けられている。具体的には、指示シール110は、把持部92の上壁92Aの上面に貼り付けられている。また、指示シール110には、一例として、人差し指が操作場所を指し示す絵が描かれている。つまり、指示シール110には、操作部材72の回動操作を促す表示がされている。
((instruction sticker))
As shown in FIG. 8, the operating member 72 is provided with an instruction sticker 110 as an example of a display section. Specifically, the instruction sticker 110 is attached to the upper surface of the upper wall 92A of the grip portion 92. Further, the instruction sticker 110 includes, for example, a picture of an index finger pointing to an operation location. That is, the instruction sticker 110 includes a display prompting the operator to rotate the operating member 72.

<実施形態1の動作と効果の説明>
図2に表すカバー部54の開放状態において、カバー部54が、閉状態となる位置に向けて回動される。
図5に表すように、被押圧部96と押圧部102とが接触して、カバー部54から作用する力と押圧部102の押圧力とが釣り合うことで、カバー部54が半開放状態で一旦、停止する。この停止状態において、把持部92がカバー部54よりも外側に突出していることで、半開放状態であることを操作者に認識させることができる。また、この停止状態において、ピン部材52と接触面86とが接触している。
<Description of operation and effects of Embodiment 1>
In the open state of the cover section 54 shown in FIG. 2, the cover section 54 is rotated toward the closed state position.
As shown in FIG. 5, the pressed part 96 and the pressing part 102 come into contact and the force acting from the cover part 54 and the pressing force of the pressing part 102 are balanced, so that the cover part 54 is temporarily in a semi-open state. ,Stop. In this stopped state, the grip portion 92 protrudes outward from the cover portion 54, thereby allowing the operator to recognize that it is in the semi-open state. Further, in this stopped state, the pin member 52 and the contact surface 86 are in contact with each other.

図6に表すカバー部54において、操作部材72以外の部位を-Z側に押し込むと、ピン部材52と係合部80とを係合させることができる。しかし、この場合では、カバー部54の広い範囲を押さなければならず、必要な操作荷重が大きくなる。 In the cover portion 54 shown in FIG. 6, when the portion other than the operating member 72 is pushed toward the -Z side, the pin member 52 and the engaging portion 80 can be engaged. However, in this case, a wide range of the cover portion 54 must be pressed, which increases the required operating load.

一方、カバー部54において、操作部材72を+R方向に回動させた場合について説明する。
図9に表すように、操作部材72の+R方向の回動に伴って、ロック部材74からピン部材52に作用する操作力Fa(N)は、接触面86に沿う方向の分力Fa1(N)と、接触面86の法線方向の分力Fa2(N)とに分解される。そして、分力Fa2は、ピン部材52からの反力Fb(N)と釣り合う。これにより、ロック部材74には、分力Fa1が作用し続けるので、突出部84がピン部材52の-Z側を回り込むように移動して、係合部80とピン部材52とが係合する。
このように、操作部材72の操作のみで係合部80とピン部材52とが係合するので、カバー部54の操作部材72以外の部位を-Z側に押し込む場合に比べて、必要な操作荷重が大きくなるのを抑制することができる。
On the other hand, a case will be described in which the operating member 72 is rotated in the +R direction in the cover portion 54.
As shown in FIG. 9, as the operating member 72 rotates in the +R direction, the operating force Fa (N) acting on the pin member 52 from the locking member 74 is a component force Fa1 (N) in the direction along the contact surface 86. ) and a component force Fa2 (N) in the normal direction of the contact surface 86. The component force Fa2 balances the reaction force Fb (N) from the pin member 52. As a result, the component force Fa1 continues to act on the locking member 74, so the protruding portion 84 moves around the −Z side of the pin member 52, and the engaging portion 80 and the pin member 52 engage with each other. .
In this way, since the engaging portion 80 and the pin member 52 are engaged only by operating the operating member 72, the required operation is less than when pushing a portion of the cover portion 54 other than the operating member 72 toward the −Z side. It is possible to suppress the load from increasing.

以上の操作により、図10に表すように、カバー部54が本体部32を閉じる閉状態となる。なお、カバー部54の閉状態では、規制部98の湾曲された部位の内側に突出部材44が収容される。このため、カバー部54のX軸方向の移動が規制され、カバー部54のがたつきを抑えられる。 Through the above operations, the cover section 54 enters the closed state in which the main body section 32 is closed, as shown in FIG. Note that when the cover portion 54 is in the closed state, the protrusion member 44 is housed inside the curved portion of the restriction portion 98 . Therefore, movement of the cover part 54 in the X-axis direction is restricted, and rattling of the cover part 54 can be suppressed.

(1)上記説明をまとめると、実施形態1によれば、操作部材72が操作によって回動中心周りに回動された場合に、+R方向における接触面86の下流側の部位は、上流側の部位に先行して、ピン部材52と接触しようとする。
ここで、ピン部材52と接触面86とが接触した場合に、先行する下流側の部位の第1回動半径R1が、後側となる上流側の部位の第2回動半径R2よりも大径となっていることで、接触面86には、ピン部材52に対する回動中心C側とは反対側に向かう分力Fa1が作用する。このため、接触面86は、ピン部材52の中心となる点Q側とは反対側の外周面52Aに対して回り込むように移動する。これにより、係合部80とピン部材52とが係合され、カバー部54が閉状態となる。
このように、係合部80がピン部材52の周囲に回り込むような力を操作部材72に追加で与えなくても、操作部材72を回動させることで、係合部80がピン部材52の周囲に案内されて回り込みながら係合し、カバー部54を閉じるので、カバー部54を閉じるのに必要な操作荷重が大きくなるのを抑制することができる。
(1) To summarize the above description, according to the first embodiment, when the operation member 72 is rotated around the rotation center by operation, the downstream part of the contact surface 86 in the +R direction is the upstream part. It attempts to come into contact with the pin member 52 before the other part.
Here, when the pin member 52 and the contact surface 86 come into contact, the first rotation radius R1 of the preceding downstream part is larger than the second rotation radius R2 of the rear upstream part. Due to the diameter, a component force Fa1 directed toward the side opposite to the rotation center C side with respect to the pin member 52 acts on the contact surface 86. Therefore, the contact surface 86 moves around the outer peripheral surface 52A on the side opposite to the point Q side, which is the center of the pin member 52. As a result, the engaging portion 80 and the pin member 52 are engaged with each other, and the cover portion 54 is brought into a closed state.
In this way, by rotating the operating member 72, the engaging portion 80 moves around the pin member 52 without applying additional force to the operating member 72 that causes the engaging portion 80 to wrap around the pin member 52. Since the cover part 54 is engaged while being guided by the surrounding area and the cover part 54 is closed, an increase in the operating load required to close the cover part 54 can be suppressed.

(2)実施形態1によれば、接触面86が、+R方向において操作部材72に作用する操作力Faを、ピン部材52との接触によって、カバー部54が閉じる方向の分力Fa1に変換する。つまり、係合部80がピン部材52の周囲に回り込むような力を操作部材72に追加で与えなくても、操作部材72を回動させることで、係合部80がピン部材52に案内されて回り込みながらピン部材52と係合し、カバー部54を閉じるので、カバー部54を閉じるのに必要な操作荷重が大きくなるのを抑制することができる。 (2) According to the first embodiment, the contact surface 86 converts the operating force Fa acting on the operating member 72 in the +R direction into a component force Fa1 in the direction in which the cover portion 54 closes by contacting with the pin member 52 . In other words, by rotating the operating member 72, the engaging portion 80 is guided by the pin member 52 without applying any additional force to the operating member 72 that causes the engaging portion 80 to wrap around the pin member 52. Since the pin member 52 is engaged with the pin member 52 while moving around and the cover portion 54 is closed, an increase in the operating load required to close the cover portion 54 can be suppressed.

(3)実施形態1によれば、係合面85が接触面86よりも+R方向の上流側に位置しているので、ピン部材52と接触面86とが接触した後で、ピン部材52と係合面85とが接触する。ここで、接触面86は、係合部80がピン部材52に対して回り込むように、ピン部材52に対して距離を変えながら相対移動しようとする。
一方、係合面85は、第1接線M1との成す第1角度θ1が、第2接線M2と接触面86との成す第2角度θ2よりも小さい。このため、係合面85は、係合部80の第1回動軌跡K1に合わせてピン部材52を保持しようとするので、係合部80とピン部材52との係合状態を保持することができる。
(3) According to the first embodiment, since the engagement surface 85 is located upstream of the contact surface 86 in the +R direction, after the pin member 52 and the contact surface 86 come into contact, the pin member 52 The engagement surface 85 makes contact. Here, the contact surface 86 attempts to move relative to the pin member 52 while changing the distance so that the engaging portion 80 wraps around the pin member 52.
On the other hand, the first angle θ1 between the engagement surface 85 and the first tangent M1 is smaller than the second angle θ2 between the second tangent M2 and the contact surface 86. Therefore, the engagement surface 85 tries to hold the pin member 52 in accordance with the first rotation locus K1 of the engagement part 80, so that the engagement state between the engagement part 80 and the pin member 52 can be maintained. I can do it.

(4)ピン部材52と接触面86とが接触した状態では、カバー部54は開状態となっている。
ここで、実施形態1によれば、操作部材72が操作者によって操作され、ピン部材52と接触面86とが接触した場合に、操作部材72の一部がカバー部54よりも外側に突出するので、カバー部54が開状態であることを操作者に認識させることができる。なお、操作部材72の回動を続けることで、係合部80とピン部材52とが係合し、カバー部54が閉状態となる。
(4) When the pin member 52 and the contact surface 86 are in contact with each other, the cover portion 54 is in an open state.
Here, according to the first embodiment, when the operating member 72 is operated by the operator and the pin member 52 and the contact surface 86 come into contact, a part of the operating member 72 protrudes outward from the cover part 54. Therefore, the operator can recognize that the cover portion 54 is in the open state. Note that by continuing to rotate the operating member 72, the engaging portion 80 and the pin member 52 are engaged, and the cover portion 54 is in the closed state.

(5)実施形態1によれば、押圧部102が被押圧部96と接触して、カバー部54を開放側へ押圧することで、カバー部54からの力と押圧部102からの力とが釣り合った状態となる。これにより、ピン部材52と接触面86とが接触する状態が保持される。そして、操作部材72が回動されることで、係合部80がピン部材52と係合され、カバー部54が閉状態となる。
このように、ピン部材52と接触面86とが接触する開状態において、一時的に操作部材72の回動が停止されるので、押圧部102を有していない構成に比べて、カバー部54が自重によって突然、閉状態となるのを抑制することができる。
(5) According to the first embodiment, the pressing part 102 contacts the pressed part 96 and presses the cover part 54 toward the open side, so that the force from the cover part 54 and the force from the pressing part 102 are reduced. It will be in a balanced state. Thereby, the state in which the pin member 52 and the contact surface 86 are in contact is maintained. Then, when the operating member 72 is rotated, the engaging portion 80 is engaged with the pin member 52, and the cover portion 54 is brought into a closed state.
In this way, in the open state where the pin member 52 and the contact surface 86 are in contact, the rotation of the operating member 72 is temporarily stopped, so that the cover part 54 is This can prevent the door from suddenly closing due to its own weight.

(6)実施形態1によれば、操作部材72に初めから引張バネ108による+R方向の回動力が付与されているので、操作部材72を+R方向へ操作するために必要な操作力を減らすことができる。 (6) According to the first embodiment, the rotational force in the +R direction by the tension spring 108 is applied to the operating member 72 from the beginning, so the operating force required to operate the operating member 72 in the +R direction can be reduced. I can do it.

(7)実施形態1によれば、操作者が指示シール110を見ることで、操作部材72の操作が促される。つまり、操作部材72が操作すべき対象であることを操作者に認識させることができる。 (7) According to the first embodiment, when the operator views the instruction sticker 110, the operator is prompted to operate the operating member 72. In other words, the operator can be made aware that the operating member 72 is the object to be operated.

(8)実施形態1によれば、操作される把持部92の第2距離d2の方が、係合される接触面86までの第1距離d1よりも長い。つまり、操作部材72における支点から力点までの距離が、支点から作用点までの距離よりも長いので、第1距離d1が第2距離d2よりも長い構成に比べて、係合部80とピン部材52との係合に必要な操作力を低減することができる。 (8) According to the first embodiment, the second distance d2 of the grip portion 92 to be operated is longer than the first distance d1 to the contact surface 86 to be engaged. That is, since the distance from the fulcrum to the point of force on the operating member 72 is longer than the distance from the fulcrum to the point of action, the engagement portion 80 and the pin member The operating force required for engagement with 52 can be reduced.

[実施形態2]
次に、本発明に係る開閉部材のロック機構、媒体搬送装置、原稿読取装置、及び記録装置の実施形態2を、図11に基づいて説明する。尚、実施形態1と共通する部分については、同一符号を付して、その説明を省略する。また、実施形態1と同様の作用及び効果についても説明を省略する。
[Embodiment 2]
Next, a second embodiment of a locking mechanism for an opening/closing member, a medium conveying device, a document reading device, and a recording device according to the present invention will be described based on FIG. 11. Note that the same parts as in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted. Furthermore, descriptions of the same functions and effects as in the first embodiment will be omitted.

図11に表すように、本実施形態2のADFユニット30は、実施形態1のロック機構部50(図5)において、ピン部材52の位置が変更され、さらに、操作部材72(図5)に代えて操作部材122が設けられたロック機構部120を有する。また、窪み部59(図1)は、実施形態1に比べてカバー部54の-X側に形成されている。 As shown in FIG. 11, in the ADF unit 30 of the second embodiment, the position of the pin member 52 is changed in the locking mechanism section 50 (FIG. 5) of the first embodiment, and further, the position of the pin member 52 is changed to the operating member 72 (FIG. 5). Instead, it has a locking mechanism section 120 provided with an operating member 122. Furthermore, the recessed portion 59 (FIG. 1) is formed on the −X side of the cover portion 54 compared to the first embodiment.

ピン部材52は、縦壁62において、係合部80よりもカバー部54のX軸方向の外側に位置している。 The pin member 52 is located on the outer side of the cover portion 54 in the X-axis direction than the engaging portion 80 in the vertical wall 62 .

操作部材122は、一例として、シャフト73と、ロック部材74と、操作レバー124とを有する。
シャフト73は、実施形態1の位置に比べて、+X側の位置に設けられている。
ロック部材74は、Z軸を対称軸として、実施形態1の配置とは線対称となるように、シャフト73に取り付けられている。つまり、係合部80は、+X側に向けて配置されている。なお、操作部材122の回動方向は、実施形態1とは逆方向であるため、-R方向と称する。
The operating member 122 includes, for example, a shaft 73, a lock member 74, and an operating lever 124.
The shaft 73 is provided at a position on the +X side compared to the position in the first embodiment.
The locking member 74 is attached to the shaft 73 so as to be line symmetrical to the arrangement in the first embodiment with the Z axis as the axis of symmetry. That is, the engaging portion 80 is arranged toward the +X side. Note that the rotation direction of the operating member 122 is the opposite direction to that in the first embodiment, and therefore is referred to as the -R direction.

操作レバー124は、Y軸方向から見た場合に、一例として、シャフト73から径方向に延びる基部125と、基部125と一体に形成された把持部126とを有する。基部125の一端部は、既述の被取付部にネジ等を用いて取り付けられている。 When viewed from the Y-axis direction, the operating lever 124 includes, for example, a base 125 that extends in the radial direction from the shaft 73, and a grip portion 126 that is integrally formed with the base 125. One end portion of the base portion 125 is attached to the aforementioned attached portion using a screw or the like.

把持部126は、-Z側に向けて開口する箱状に形成されている。Z軸方向から見た場合に、把持部126の外形は、一例として、矩形状となっている。把持部126の大きさは、窪み部59(図1)に収容される大きさとされている。また、把持部126は、基部125からX軸方向の内側(-X側)へ向けて延びている。 The grip portion 126 is formed into a box shape that opens toward the −Z side. When viewed from the Z-axis direction, the outer shape of the grip portion 126 is, for example, a rectangular shape. The size of the grip portion 126 is such that it can be accommodated in the recess 59 (FIG. 1). Further, the grip portion 126 extends from the base portion 125 toward the inside (−X side) in the X-axis direction.

具体的には、把持部126は、カバー部54の閉状態において、カバー部54の上面に沿って配置される上壁126Aと、上壁126Aの-X側の端部から-Z側へ延びる縦壁126Bとを含んで構成されている。縦壁126Bは、把持部126の先端に相当する部位である。また、把持部126の中央に対する-Z側且つ+X側の部分は、基部125と一体化されている。 Specifically, when the cover section 54 is in the closed state, the grip section 126 includes an upper wall 126A disposed along the upper surface of the cover section 54, and an upper wall 126A extending from the -X side end of the upper wall 126A toward the -Z side. It is configured to include a vertical wall 126B. The vertical wall 126B is a portion corresponding to the tip of the grip portion 126. Further, a portion of the grip portion 126 on the −Z side and +X side with respect to the center is integrated with the base portion 125.

また、把持部126は、-R方向において係合部80よりも上流側に配置されている。つまり、操作部材122は、-R方向において係合部80よりも上流側に配置され且つ把持されながら回動操作される把持部126を有している。
Y軸方向から見た場合に、操作レバー124のシャフト73の回動中心となる位置を点Cで表す。また、縦壁126Bの-Z側端となる位置を点Nで表す。そして、点Cから点Nまでの距離を第2距離d3(mm)とする。第2距離d3は、第1距離d1よりも長い。
Moreover, the gripping part 126 is arranged upstream of the engaging part 80 in the -R direction. In other words, the operating member 122 includes a gripping portion 126 that is disposed upstream of the engaging portion 80 in the -R direction and is rotated while being gripped.
Point C represents the position at which the shaft 73 of the operating lever 124 rotates when viewed from the Y-axis direction. Further, a point N represents the position of the -Z side end of the vertical wall 126B. Then, the distance from point C to point N is defined as a second distance d3 (mm). The second distance d3 is longer than the first distance d1.

<実施形態2の動作と効果の説明>
実施形態2によれば、把持部126がX軸方向の外側(+X側)へ向けて延びる構成に比べて、X軸方向における把持部126の長さをより長く設定することができる。つまり、支点から力点までの距離を、実施形態1に比べて長く設定することができるので、操作部材122を操作するのに必要な操作力をさらに低減することができる。
<Description of operation and effects of Embodiment 2>
According to the second embodiment, the length of the gripping portion 126 in the X-axis direction can be set longer than in a configuration in which the gripping portion 126 extends outward in the X-axis direction (+X side). In other words, since the distance from the fulcrum to the point of effort can be set longer than in the first embodiment, the operating force required to operate the operating member 122 can be further reduced.

〔他の実施形態〕
本発明の実施形態に係るロック機構部50、120、ADFユニット30、スキャナー部20及びプリンター10は、以上のべたような構成を有することを基本とするものであるが、本願発明の要旨を逸脱しない範囲内での部分的構成の変更や省略等を行うことも勿論可能である。
[Other embodiments]
The lock mechanism sections 50, 120, ADF unit 30, scanner section 20, and printer 10 according to the embodiments of the present invention basically have the above-described configurations, but they deviate from the gist of the present invention. Of course, it is also possible to change or omit partial configurations within the scope.

プリンター10は、インクジェット方式のものに限らず、電子写真方式のものであってもよい。
スキャナー部20は、センサー24によって原稿Gの片面の情報を読み取る構成に限らず、ADFユニット30内に他のセンサーを設けて、原稿Gの両面の情報を読み取る構成にしてもよい。
媒体搬送装置は、ADFユニット30に限らず、例えば、画像記録部14に向けて用紙Pを搬送する装置であってもよい。
The printer 10 is not limited to an inkjet printer, but may be an electrophotographic printer.
The scanner unit 20 is not limited to a configuration in which the sensor 24 reads information on one side of the document G, but may be configured to read information on both sides of the document G by providing another sensor in the ADF unit 30.
The medium transport device is not limited to the ADF unit 30, but may be a device that transports the paper P toward the image recording section 14, for example.

ロック機構部50、120は、係合面85を有さないものであってもよい。例えば、接触面86の終端部に切欠部を形成して、該切欠部とピン部材52とを係合させてもよい。
また、ロック機構部50、120は、ピン部材52と接触面86とが接触した場合に、操作部材72、122がカバー部54よりも外側に突出しなくてもよい。例えば、把持部92、126がX軸方向に沿った姿勢とならないことで、カバー部54の半開放状態を操作者に認識させてもよい。
The lock mechanism parts 50 and 120 may not have the engagement surface 85. For example, a notch may be formed at the terminal end of the contact surface 86 and the pin member 52 may be engaged with the notch.
Furthermore, in the locking mechanism sections 50 and 120, when the pin member 52 and the contact surface 86 come into contact, the operating members 72 and 122 do not need to protrude outward beyond the cover section 54. For example, the operator may be made aware of the half-open state of the cover portion 54 by not holding the grip portions 92 and 126 in a posture along the X-axis direction.

ロック機構部50、120は、被押圧部96及び押圧部102が設けられていなくてもよい。
また、ロック機構部50、120は、引張バネ108に代えて、コイルバネ等で操作部材72、122に押付力を付与してもよい。また、付与部材は、カバー部54ではなく、本体部32に設けられていてもよい。
The lock mechanism parts 50 and 120 do not need to be provided with the pressed part 96 and the pressing part 102.
Further, the locking mechanism sections 50 and 120 may apply a pressing force to the operating members 72 and 122 using a coil spring or the like instead of the tension spring 108. Further, the providing member may be provided not on the cover portion 54 but on the main body portion 32.

ロック機構部50、120は、指示シール110に代えて、指示シール111(図12)を設けてもよい。指示シール111は、一例として、三本線が描かれており、操作者の意識を把持部92に引き付ける。なお、指示シール110、111を設けなくてもよい。
また、ロック機構部50、120は、第1距離d1が第2距離d2よりも長いものであってもよい。
The lock mechanisms 50 and 120 may be provided with an instruction seal 111 (FIG. 12) instead of the instruction seal 110. The instruction sticker 111 has, for example, three lines drawn thereon to draw the operator's attention to the grip portion 92. Note that the instruction stickers 110 and 111 may not be provided.
Furthermore, the first distance d1 of the locking mechanisms 50 and 120 may be longer than the second distance d2.

また、被押圧部96と押圧部102を有する構成に代えて、被押圧部96と押圧部102が無く、搬送路Tの各ローラーがニップ(当接)する位置で釣り合って一旦停止した段階で、且つカバー部54が閉状態となる前の段階において、ピン部材52と接触面86とが接触する状態を保持させるようになっている構成であっても良い。また、被押圧部96と押圧部102を有する構成で、搬送路Tの各ローラーがニップする位置で釣り合っていても良い。 In addition, instead of the configuration having the pressed part 96 and the pressing part 102, there is no pressed part 96 and the pressing part 102, and when the rollers of the conveyance path T are balanced at the nip (contact) position and once stopped, In addition, a configuration may be adopted in which the pin member 52 and the contact surface 86 are kept in contact with each other at a stage before the cover portion 54 is in the closed state. Alternatively, the configuration may include the pressed portion 96 and the pressing portion 102, and the rollers of the conveying path T may be balanced at the nip position.

10…プリンター、12…カセット収容部、13…収容カセット、14…画像記録部、
16…操作パネル、18…制御部、20…スキャナー部、22…スキャナー本体、
23…筐体、24…センサー、30…ADFユニット、32…本体部、
33…ベースフレーム、36…サイドフレーム、36A…第1角部、36B…第2角部、
37…軸部材、38…供給トレイ、41…経路下壁、42…排出トレイ、44…突出部材、
45…外装カバー、46…搬送ローラー、50…ロック機構部、52…ピン部材、
52A…外周面、54…カバー部、56…上壁、58…側壁、59…窪み部、
62…縦壁、64…経路上壁、66…補助ローラー、68…送込ローラー、
72…操作部材、73…シャフト、74…ロック部材、76…取付部、76A…貫通孔、
77…操作レバー、78…第1アーム部、79…第2アーム部、80…係合部、
82…貫通孔、83…側面、84…突出部、85…係合面、86…接触面、87…斜面、
91…基部、92…把持部、92A…上壁、92B…縦壁、96…被押圧部、
97…筒状部、98…規制部、102…押圧部、103…基部、104…軸部、
105…可動部、106…コイルバネ、108…引張バネ、110…指示シール、
111…指示シール、120…ロック機構部、122…操作部材、124…操作レバー、
125…基部、126…把持部、126A…上壁、126B…縦壁、d1…第1距離、
d2…第2距離、d3…第2距離、Fa…操作力、Fa1…分力、Fa2…分力、
Fb…反力、K1…第1回動軌跡、K2…第2回動軌跡、M1…第1接線、
M2…第2接線、R1…第1回動半径、R2…第2回動半径、S1…第1象限、
S2…第2象限、S3…第3象限、S4…第4象限、θ1…第1角度、θ2…第2角度
DESCRIPTION OF SYMBOLS 10... Printer, 12... Cassette storage part, 13... Storage cassette, 14... Image recording part,
16...Operation panel, 18...Control unit, 20...Scanner unit, 22...Scanner body,
23... Housing, 24... Sensor, 30... ADF unit, 32... Main unit,
33... Base frame, 36... Side frame, 36A... First corner, 36B... Second corner,
37... Shaft member, 38... Supply tray, 41... Route lower wall, 42... Ejection tray, 44... Projecting member,
45... Exterior cover, 46... Conveyance roller, 50... Lock mechanism section, 52... Pin member,
52A...outer peripheral surface, 54...cover part, 56...top wall, 58...side wall, 59...dent part,
62...Vertical wall, 64...Route upper wall, 66...Auxiliary roller, 68...Feeding roller,
72... Operating member, 73... Shaft, 74... Lock member, 76... Mounting part, 76A... Through hole,
77... Operating lever, 78... First arm part, 79... Second arm part, 80... Engaging part,
82...Through hole, 83...Side surface, 84...Protrusion, 85...Engagement surface, 86...Contact surface, 87...Slope,
91...Base, 92...Gripping part, 92A...Top wall, 92B...Vertical wall, 96...Pressed part,
97... Cylindrical part, 98... Regulating part, 102... Pressing part, 103... Base, 104... Shaft part,
105... Movable part, 106... Coil spring, 108... Tension spring, 110... Instruction sticker,
DESCRIPTION OF SYMBOLS 111... Instruction sticker, 120... Lock mechanism part, 122... Operating member, 124... Operating lever,
125...base, 126...grip, 126A...upper wall, 126B...vertical wall, d1...first distance,
d2...second distance, d3...second distance, Fa...operating force, Fa1...component force, Fa2...component force,
Fb...Reaction force, K1...First rotation trajectory, K2...Second rotation trajectory, M1...First tangent line,
M2...second tangent, R1...first radius of rotation, R2...second radius of rotation, S1...first quadrant,
S2...second quadrant, S3...third quadrant, S4...fourth quadrant, θ1...first angle, θ2...second angle

Claims (15)

装置本体に設けられた被係合部と、
前記装置本体に回動可能に設けられ、前記装置本体を開閉する開閉部材と、
前記開閉部材に回動可能に設けられ、前記被係合部と係合する係合部を備え、前記係合部と前記被係合部とを係合させる操作者の操作によって前記開閉部材を閉状態とする操作部材と、
前記係合部に形成され、前記係合部が前記被係合部に向かう回動方向において、下流側の部位の第1回動半径が上流側の部位の第2回動半径よりも大径とされ、前記被係合部と接触する接触面と、
を有し、
前記被係合部と前記接触面とが接触した状態から、前記操作部材が前記回動方向に回動することで、前記被係合部と前記係合部とが係合可能であることを特徴とする開閉部材のロック機構。
an engaged portion provided on the device main body;
an opening/closing member that is rotatably provided on the device main body and opens and closes the device main body;
The opening/closing member includes an engaging part that is rotatably provided on the opening/closing member and engages with the engaged part, and the opening/closing member is operated by an operator's operation to engage the engaging part and the engaged part. an operating member for bringing the closed state into a closed state;
formed in the engaging portion, in a rotating direction in which the engaging portion moves toward the engaged portion, a first rotation radius of a downstream portion is larger than a second rotation radius of an upstream portion; and a contact surface that contacts the engaged portion;
has
The engaged portion and the engaging portion can be engaged by rotating the operating member in the rotational direction from a state in which the engaged portion and the contact surface are in contact with each other. Features a locking mechanism for opening and closing members.
装置本体に設けられた被係合部と、
前記装置本体に回動可能に設けられ、前記装置本体を開閉する開閉部材と、
前記開閉部材に回動可能に設けられ、前記被係合部と係合する係合部を備え、前記係合部と前記被係合部とを係合させる操作によって前記開閉部材を閉状態とする操作部材と、
前記係合部に形成され、前記係合部が前記被係合部に向かう回動方向において前記操作部材に作用する操作力を、前記被係合部との接触によって前記開閉部材が閉じる方向の力に変換する接触面と、
を有し、
前記操作力は、操作者が前記操作部材を操作する力であり、前記操作部材を前記回動方向に回動させる力であることを特徴とする開閉部材のロック機構。
an engaged portion provided on the device main body;
an opening/closing member that is rotatably provided on the device main body and opens and closes the device main body;
The opening/closing member includes an engaging part that is rotatably provided and engages with the engaged part, and the opening/closing member is brought into a closed state by an operation of engaging the engaging part and the engaged part. an operating member to
The operating force that is formed on the engaging portion and acts on the operating member in the direction of rotation of the engaging portion toward the engaged portion is applied in the direction in which the opening/closing member closes due to contact with the engaged portion. a contact surface that converts into force;
has
A locking mechanism for an opening/closing member, wherein the operating force is a force for an operator to operate the operating member, and is a force for rotating the operating member in the rotation direction.
請求項1又は請求項2に記載の開閉部材のロック機構において、
前記接触面は、傾斜面であり、
前記係合部の前記回動方向における前記接触面よりも上流側に位置する部位には、前記係合部の回動軌跡の接線との成す第1角度が、前記接触面における前記係合部の回動軌跡の接線との成す第2角度よりも小さい係合面が形成されている、
ことを特徴とする開閉部材のロック機構。
The locking mechanism for the opening/closing member according to claim 1 or 2,
The contact surface is an inclined surface,
At a portion of the engaging portion located upstream of the contact surface in the rotation direction, a first angle formed with a tangent to the rotation locus of the engaging portion is formed on the contact surface of the engaging portion. An engagement surface is formed that is smaller than the second angle formed by the tangent to the rotation locus of
A locking mechanism for an opening/closing member characterized by:
請求項1から請求項3のいずれか1項に記載の開閉部材のロック機構において、
前記操作部材は、前記開閉部材が閉状態の場合に前記開閉部材の内側に収容され、前記被係合部と前記接触面とが接触した場合に前記開閉部材よりも外側に突出する、
ことを特徴とする開閉部材のロック機構。
The locking mechanism for the opening/closing member according to any one of claims 1 to 3,
The operating member is housed inside the opening/closing member when the opening/closing member is in a closed state, and protrudes outward from the opening/closing member when the engaged portion and the contact surface are in contact with each other.
A locking mechanism for an opening/closing member characterized by:
請求項4に記載の開閉部材のロック機構において、
前記開閉部材には、被押圧部が設けられ、
前記装置本体には、前記被押圧部と接触して前記開閉部材を開放側へ押圧することで、前記被係合部と前記接触面とが接触する状態を保持させる押圧部が設けられている、
ことを特徴とする開閉部材のロック機構。
The locking mechanism for the opening/closing member according to claim 4,
The opening/closing member is provided with a pressed portion,
The device main body is provided with a pressing portion that maintains a state in which the engaged portion and the contact surface are in contact by contacting the pressed portion and pressing the opening/closing member toward the open side. ,
A locking mechanism for an opening/closing member characterized by:
請求項1から請求項3のいずれか1項に記載の開閉部材のロック機構において、
前記開閉部材には、被押圧部が設けられ、
前記装置本体には、前記被押圧部と接触して前記開閉部材を開放側へ押圧することで、前記被係合部と前記接触面とが接触する状態を保持させる押圧部が設けられている、
ことを特徴とする開閉部材のロック機構。
The locking mechanism for the opening/closing member according to any one of claims 1 to 3,
The opening/closing member is provided with a pressed portion,
The device main body is provided with a pressing portion that maintains a state in which the engaged portion and the contact surface are in contact by contacting the pressed portion and pressing the opening/closing member toward the open side. ,
A locking mechanism for an opening/closing member characterized by:
請求項5又は請求項6に記載の開閉部材のロック機構において、
前記押圧部は、前記開閉部材からの荷重と釣り合う押圧力を、前記開閉部材に作用させることで、前記被係合部と前記接触面とが接触する状態を保持させる、
ことを特徴とする開閉部材のロック機構。
The locking mechanism for the opening/closing member according to claim 5 or 6,
The pressing portion maintains a state in which the engaged portion and the contact surface are in contact by applying a pressing force to the opening/closing member that balances the load from the opening/closing member.
A locking mechanism for an opening/closing member characterized by:
請求項1から請求項7のいずれか1項に記載の開閉部材のロック機構において、
前記開閉部材には、前記操作部材に前記回動方向の回動力を付与する付与部材が設けられている、
ことを特徴とする開閉部材のロック機構。
The locking mechanism for the opening/closing member according to any one of claims 1 to 7,
The opening/closing member is provided with an imparting member that imparts a rotational force in the rotational direction to the operation member.
A locking mechanism for an opening/closing member characterized by:
請求項1から請求項8のいずれか1項に記載の開閉部材のロック機構において、
前記操作部材には、前記操作部材の操作を促す表示がされた表示部が設けられ
前記表示部は、前記操作者から視認可能な位置に設けられている、
ことを特徴とする開閉部材のロック機構。
The locking mechanism for the opening/closing member according to any one of claims 1 to 8,
The operating member is provided with a display section on which a display prompting operation of the operating member is provided ,
The display unit is provided at a position that is visible to the operator ,
A locking mechanism for an opening/closing member characterized by:
請求項9に記載の開閉部材のロック機構において、 The locking mechanism for the opening/closing member according to claim 9,
前記操作部材は、把持されながら操作される把持部を有し、 The operating member has a grip part that is operated while being gripped,
前記表示部は、前記把持部の上面に設けられている、 The display section is provided on the upper surface of the grip section,
ことを特徴とする開閉部材のロック機構。A locking mechanism for an opening/closing member characterized by:
請求項1から請求項9のいずれか1項に記載の開閉部材のロック機構において、
前記操作部材は、前記回動方向において前記係合部よりも上流側に配置され且つ把持されながら操作される把持部を有し、
前記操作部材の回動中心から前記接触面までの第1距離よりも、前記回動中心から前記把持部の先端までの第2距離の方が長い、
ことを特徴とする開閉部材のロック機構。
The locking mechanism for the opening/closing member according to any one of claims 1 to 9,
The operating member has a gripping part that is disposed upstream of the engaging part in the rotation direction and is operated while being gripped,
a second distance from the rotation center to the tip of the grip portion is longer than a first distance from the rotation center of the operating member to the contact surface;
A locking mechanism for an opening/closing member characterized by:
請求項1に記載の開閉部材のロック機構において、
前記被係合部は、前記係合部よりも前記開閉部材の幅方向の外側に位置し、
前記把持部は、前記幅方向の内側へ向けて延びている、
ことを特徴とする開閉部材のロック機構。
The locking mechanism for the opening/closing member according to claim 11 ,
The engaged portion is located outside the engaging portion in the width direction of the opening/closing member,
The grip portion extends inward in the width direction,
A locking mechanism for an opening/closing member characterized by:
請求項1から請求項1のいずれか1項に記載の開閉部材のロック機構と、
前記開閉部材が前記装置本体を閉じることで形成される搬送路に設けられ、媒体を搬送する搬送部材と、
を有することを特徴とする媒体搬送装置。
A locking mechanism for an opening/closing member according to any one of claims 1 to 12 ,
a conveyance member that is provided in a conveyance path formed by the opening/closing member closing the apparatus main body and conveys the medium;
A medium transport device comprising:
請求項1に記載の媒体搬送装置と、
前記媒体としての原稿の情報を読み取る読取部と、
を有することを特徴とする原稿読取装置。
A medium transport device according to claim 13 ;
a reading unit that reads information on the document as the medium;
A document reading device comprising:
請求項1に記載の媒体搬送装置又は請求項1に記載の原稿読取装置と、
受け取った情報に基づいて、媒体に情報を記録する記録部と、
を有することを特徴とする記録装置。
The medium conveying device according to claims 1 to 3 or the document reading device according to claims 1 to 4 ,
a recording unit that records information on a medium based on the received information;
A recording device comprising:
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JP2000240616A (en) 1999-02-22 2000-09-05 Sharp Corp Fixing device
JP2006030219A (en) 2004-07-12 2006-02-02 Murata Mach Ltd Locking mechanism
JP2006076287A (en) 2004-08-09 2006-03-23 Seiko Epson Corp Label printer
JP2011248462A (en) 2010-05-24 2011-12-08 Panasonic Corp Electronic apparatus
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