JP4043443B2 - rice cooker - Google Patents

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JP4043443B2
JP4043443B2 JP2004021909A JP2004021909A JP4043443B2 JP 4043443 B2 JP4043443 B2 JP 4043443B2 JP 2004021909 A JP2004021909 A JP 2004021909A JP 2004021909 A JP2004021909 A JP 2004021909A JP 4043443 B2 JP4043443 B2 JP 4043443B2
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hinge pin
damper
rice cooker
lid
main body
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JP2005211322A (en
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定 宇都宮
英孝 大隅
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Zojirushi Corp
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Zojirushi Corp
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Description

本発明は、炊飯器に関し、特に、蓋体の回動を減衰するダンパを有する炊飯器に関する。   The present invention relates to a rice cooker, and more particularly to a rice cooker having a damper that attenuates rotation of a lid.

炊飯器の蓋体は、開放する方向にばねで付勢されることが多い。しかし、ばねの付勢力が強すぎると、蓋体が急激に開き、蓋体の回動を停止させる部分が破損することがある。また、蓋体が急激に回動すると、人やものにぶつかることがあるなど、ユーザが取り扱いにくく高級感がない。このため、ばね付勢された蓋体の回動を減衰させ、蓋体がゆっくりと開く炊飯器が求められている。   The lid of a rice cooker is often biased by a spring in the opening direction. However, if the urging force of the spring is too strong, the lid body may suddenly open, and the portion that stops the rotation of the lid body may be damaged. In addition, when the lid is suddenly rotated, it may hit a person or an object, and it is difficult for the user to handle and there is no sense of quality. For this reason, there is a need for a rice cooker that damps the rotation of the spring-biased lid and slowly opens the lid.

特許文献１には、蓋体開放したときに蓋体を受け止めるばねを設けた構造が開示されているが、蓋体を開放させるばねと蓋体を受け止めるばねとのバランスが崩れると、蓋体が途中で止まってしまうという問題があった。また、特許文献２には、ヒンジピンに歯車を設けて、ダンパ歯車を噛み合わせることで、ヒンジピンを固定した蓋体の回動を減衰させる構造が開示されているが、歯車を採用するので構造が複雑になり炊飯器が高価になるという問題があった。
実開昭６０−１０６５２６号公報 特公平７−２２５４２号公報 Patent Document 1 discloses a structure in which a spring that receives a lid when the lid is opened is disclosed. However, when the balance between the spring that opens the lid and the spring that receives the lid is broken, the lid is There was a problem of stopping on the way. Patent Document 2 discloses a structure in which a gear is provided on a hinge pin and a damper gear is meshed to attenuate the rotation of a lid body to which the hinge pin is fixed. There is a problem that the rice cooker becomes complicated and expensive.
Japanese Utility Model Publication No. 60-106526 Japanese Patent Publication No. 7-22542

そこで、本発明は、簡単な構造で蓋体がゆっくりと開く炊飯器を提供することを課題とする。   Then, this invention makes it a subject to provide the rice cooker which a cover body opens slowly with a simple structure.

本発明によれば、本体にヒンジピンによって回動可能に取り付けた蓋体と、該蓋体を開放する方向に付勢するばねと、前記ヒンジピンに挿通されたダンパとを有する炊飯器は、前記ヒンジピンは、断面が非円形の係合形状であり、前記ダンパは、前記ヒンジピンの係合形状と一致する係合形状を有する挿通穴を有し、該挿通穴に挿通した前記ヒンジピンの該ダンパに対する回転を減衰するものであり、該ダンパの動きを規制するための座面を有し、前記本体または前記蓋体の一方は、前記ヒンジピンを固定する取付部を有し、他方は、前記座面と当接して前記ダンパの前記ヒンジピン周りの回動を規制する平面を備えた規制部を有するものとする。 According to the present invention, a rice cooker having a lid attached to a main body by a hinge pin so as to be rotatable, a spring biasing in a direction to open the lid, and a damper inserted through the hinge pin includes the hinge pin. Is a non-circular engagement shape in cross section, and the damper has an insertion hole having an engagement shape coinciding with the engagement shape of the hinge pin, and the rotation of the hinge pin inserted into the insertion hole with respect to the damper It is intended to damp, having a seat surface for restricting the movement of the damper, one of the body or the lid body has a mounting portion for fixing the hinge pin and the other, and the seat surface It shall have a regulation part provided with a plane which contacts and regulates rotation around the hinge pin of the damper.

この構成によれば、ヒンジピンの断面を非円形にしたことで、該ヒンジピンを本体または蓋体の一方の取付部および前記ダンパの挿通穴に係合させて固定することができる。また、前記ヒンジピンを固定していない本体または蓋体は、前記規制部によって前記ダンパの前記ヒンジピン周りの角度を定める。これによって、前記ヒンジピンまたは前記ダンパの一方が前記ばねによって前記蓋体とともに回転させられるが、他方が本体２に固定または規制されて回転しないためにダンパの作用によりその回転力が減衰されるので、前記蓋体はゆっくりと回動する。また、前記規制部が、前記座面と当接する平面を有するので、前記座面と前記規制部との間に隙間を持たせることで、ダンパの位置に自由度ができ、本体および蓋体の加工精度が高くなくても、ダンパの回転軸とヒンジピンの回転軸とを一致させることができる。 According to this configuration, since the cross section of the hinge pin is non-circular, the hinge pin can be engaged with and fixed to one attachment portion of the main body or the lid and the insertion hole of the damper. In addition, the body or the lid body to which the hinge pin is not fixed determines an angle around the hinge pin of the damper by the restricting portion. As a result, one of the hinge pin or the damper is rotated together with the lid by the spring, but the other is fixed or restricted to the main body 2 so that the rotation force is attenuated by the action of the damper. The lid body rotates slowly. In addition, since the restricting portion has a flat surface that comes into contact with the seating surface, by providing a gap between the seating surface and the restricting portion, the damper can be freely positioned, and the body and the lid Even if the processing accuracy is not high, the rotational axis of the damper and the rotational axis of the hinge pin can be matched.

また、本発明の炊飯器において、前記ダンパは、前記ヒンジピンの中央に配置されていてもよい。   Moreover, the rice cooker of this invention WHEREIN: The said damper may be arrange | positioned in the center of the said hinge pin.

この構成によれば、本体および蓋体は、１本のヒンジピンをそれぞれ２箇所以上で支持する必要があるが、その支持部の間にダンパを配置することで、前記ダンパを空間効率よく収納できるので、炊飯器が大型化しない。   According to this configuration, the main body and the lid need to support one hinge pin at two or more locations, but by placing the damper between the support portions, the damper can be stored efficiently. Therefore, the rice cooker does not increase in size.

また、本発明の炊飯器において、前記ヒンジピンを固定していない前記本体または前記蓋体は、前記ヒンジピンを外面が円形のブシュを介して保持するものとしてもよい。   Moreover, the rice cooker of this invention WHEREIN: The said main body or the said cover body which has not fixed the said hinge pin is good also as what hold | maintains the said hinge pin via a bush with an outer surface circular.

この構成によれば、ヒンジピンが円形断面を有していなくても、本体または蓋体に対して無理なく回転できるように保持される。このため、前記ヒンジピンに過度の摩擦が働いて蓋体が開放途中で遅くなったり停止したりしないで滑らかに回動する。また、摩擦が少ないのでヒンジピンおよび本体または蓋体が磨耗しにくい。   According to this structure, even if the hinge pin does not have a circular cross section, the hinge pin is held so as to be able to rotate with respect to the main body or the lid without difficulty. For this reason, excessive friction acts on the hinge pin, and the lid body rotates smoothly without being delayed or stopped during the opening. Further, since the friction is small, the hinge pin and the main body or the lid are not easily worn.

また、本発明の炊飯器において、前記ヒンジピンを固定していない前記本体または前記蓋体は、前記ヒンジピンを保持するＵ字型の軸受部と、前記軸受部の開放した方向への前記ヒンジピンの移動を規制する押さえ部材とを有するものとしてもよい。   In the rice cooker of the present invention, the main body or the lid body to which the hinge pin is not fixed includes a U-shaped bearing portion that holds the hinge pin, and the hinge pin moves in a direction in which the bearing portion is opened. It is good also as what has a pressing member which regulates.

この構成によれば、ヒンジピンを前記軸受部に軸方向と垂直な方向から嵌め込むことで取り付けられる。これによって炊飯器の組立てが容易である。   According to this configuration, the hinge pin is attached by being fitted into the bearing portion from a direction perpendicular to the axial direction. This makes it easy to assemble the rice cooker.

また、本発明の炊飯器において、前記ヒンジピンの係合形状は、方形であってもよい。   Moreover, the rice cooker of this invention WHEREIN: A square may be sufficient as the engagement shape of the said hinge pin.

この構成によれば、ヒンジピンは、簡単な形状であるので安価である。   According to this configuration, the hinge pin has a simple shape and is inexpensive.

また、本発明の炊飯器において、前記ヒンジピンの係合形状は、円弧と弦とからなるＤの字型であってもよい。   Moreover, the rice cooker of this invention WHEREIN: D character shape which consists of a circular arc and a string may be sufficient as the engagement shape of the said hinge pin.

この構成によっても、ヒンジピンは、簡単な形状であるので安価である。   Even with this configuration, the hinge pin has a simple shape and is inexpensive.

また、本発明の炊飯器において、前記押さえ部材は、前記ヒンジピンと接する金属製の部材であり、前記ヒンジピンは、前記係合形状の円弧と弦との角が前記押さえ部材に当接しない範囲内で回動可能であってもよい。 Further, in the rice cooker of the present invention, the pressing member is a metal member that contacts the hinge pin, and the hinge pin is within a range in which the angle between the arc of the engagement shape and the string does not contact the pressing member. May be pivotable.

この構成によれば、ヒンジピンはばねによって特定の方向に強く押し付けられるが、前記ヒンジピンが強く押し付けられる方向に金属製の押さえ部材を配置することでヒンジピンを確実に保持できる。さらに、前記押さえ部材を前記ヒンジピンの係合形状の円弧と接するようにすることでヒンジピンは滑らかに回転でき、前記ヒンジピンおよび前記押さえ部材は磨耗しにくい。   According to this configuration, the hinge pin is strongly pressed in a specific direction by the spring, but the hinge pin can be securely held by arranging the metal pressing member in the direction in which the hinge pin is strongly pressed. Further, the hinge pin can be smoothly rotated by contacting the pressing member with the arc of the engagement shape of the hinge pin, and the hinge pin and the pressing member are not easily worn.

また、本発明の炊飯器において、前記取付部は、金属製の補強板であってもよい。   Moreover, the rice cooker of this invention WHEREIN: A metal reinforcement board may be sufficient as the said attaching part.

この構成によれば、蓋体を開閉させる際の回動トルクを金属製の補強板と前記ヒンジピンとの間で授受するため、前記取付部が破損または磨耗することがない。   According to this configuration, since the turning torque when the lid is opened and closed is exchanged between the metal reinforcing plate and the hinge pin, the mounting portion is not damaged or worn.

また、本発明の炊飯器において、前記ブシュは、前記前記本体または前記蓋体の前記取付部と、前記押さえ部材との間に挟まれていてもよい。Moreover, the rice cooker of this invention WHEREIN: The said bush may be pinched | interposed between the said attaching part of the said main body or the said cover body, and the said pressing member.

また、本発明の炊飯器において、前記ヒンジピンを固定していない前記本体または前記蓋体は、前記ダンパの前記ヒンジピンの回転軸方向への動きを規制するガイドを有してもよい。   Moreover, the rice cooker of this invention WHEREIN: The said main body or the said cover body which has not fixed the said hinge pin may have a guide which controls the motion to the rotating shaft direction of the said hinge pin of the said damper.

この構成によれば、ダンパがヒンジピンの回転軸方向に移動することがなく、蓋体の滑らかな回動が阻害されることがない。   According to this configuration, the damper does not move in the direction of the rotation axis of the hinge pin, and the smooth rotation of the lid body is not hindered.

また、本発明の炊飯器において、前記ヒンジピンを固定していない前記本体または前記蓋体は、前記規制部とともに前記ダンパの一部を挟み込む回り止めを有してもよい。   Moreover, the rice cooker of this invention WHEREIN: The said main body or the said cover body which is not fixing the said hinge pin may have a rotation stopper which pinches | interposes a part of said damper with the said control part.

この構成によれば、ダンパの一部を保持するだけでダンパの回転を規制することができる。   According to this configuration, the rotation of the damper can be restricted only by holding a part of the damper.

また、本発明の炊飯器において、前記ヒンジピンは、前記蓋体に固定され、前記規制部は、前記本体に設けられているものとしてもよい。   Moreover, the rice cooker of this invention WHEREIN: The said hinge pin is fixed to the said cover body, and the said control part is good also as what is provided in the said main body.

この構成によれば、蓋体にヒンジピンを固定する取付部を設け、本体にヒンジピンを支持する軸受部およびダンパの回転を規制する規制部の２つの構成要素を設けることになる。構造上、空間や強度を得やすい本体に多くの構成要素を配置することで、設計や組立てが容易になる。   According to this structure, the attachment part which fixes a hinge pin to a cover body is provided, and two components, the bearing part which supports a hinge pin and the control part which controls rotation of a damper, are provided in a main body. Design and assembly are facilitated by arranging a large number of components in the main body that is easy to obtain space and strength.

以上のように、本発明によれば、簡単な構造でダンパの作用により蓋体がゆっくりと開く高級感のある炊飯器を安価に提供できる。   As described above, according to the present invention, it is possible to provide an inexpensive rice cooker having a simple structure and a high-class feeling that the lid is slowly opened by the action of the damper.

図１は、本発明の第１実施形態の炊飯器１を示す。炊飯器１は、有底筒状の本体２と、本体２の上部の開口を閉塞する蓋体３と、本体２の内部に収納された鍋４とからなり、蓋体３は、本体２にヒンジピン５で回動可能に取り付けられている。さらに、炊飯器１は、ダンパ６を有し、ヒンジピン５は、ダンパ６に挿通されている。そして、ヒンジピン５によって蓋体３を取り付けている部分を覆うカバー７が取り付けられている。   FIG. 1 shows a rice cooker 1 according to a first embodiment of the present invention. The rice cooker 1 includes a bottomed cylindrical main body 2, a lid 3 that closes an opening at the top of the main body 2, and a pan 4 that is housed inside the main body 2, and the lid 3 is attached to the main body 2. The hinge pin 5 is pivotally attached. Furthermore, the rice cooker 1 has a damper 6, and the hinge pin 5 is inserted through the damper 6. And the cover 7 which covers the part which has attached the cover body 3 with the hinge pin 5 is attached.

図２は、炊飯器１の本体２に蓋体３を取り付けている部分を示す。ダンパ６は、裏面が平らな座面になっている座板８を有しており、本体２の鉛直な平面を有する壁部９から突出した一対の鉛直方向に長いガイド１０の間に座板８が挟まれ、座面が壁部９に当接するように、ヒンジピン５に挿通されて支持されている。ヒンジピン５は、ダンパ６の両側でそれぞればね１１に挿通している。ばね１１の両端はヒンジピン５の軸と垂直な方向に伸び、一端は蓋体２に係止され、他端は、押さえ金具１２に係止されることで、蓋体２をヒンジピン５を中心に回動させて開放させるように付勢している。押さえ金具１２は、本体２にネジ１３で固定され、２つのばね１１のさらに外側に伸びる１対の腕部１４を有している。さらにヒンジピン５には円筒形のブシュ１５が挿入され、ヒンジピン５に直交する本体２の側板部１６に設けたＵ字型の軸受部１７がブシュ１５を介してヒンジピン５を支持している。そして、ヒンジピン５が軸受部１７から外れないように押さえ金具１２の腕部１４が押さえ込むようになっている。ヒンジピン５は、両側のブシュ１５のさらに外側に金属製の補強板１８が対向して取り付けられており、この補強板１８に蓋体２が取り付けられる。   FIG. 2 shows a portion where the lid 3 is attached to the main body 2 of the rice cooker 1. The damper 6 has a seat plate 8 whose back surface is a flat seat surface, and a seat plate between a pair of vertically long guides 10 protruding from a wall portion 9 having a vertical plane of the main body 2. 8 is inserted and supported by being inserted into the hinge pin 5 so that the seating surface comes into contact with the wall portion 9. The hinge pins 5 are inserted through the springs 11 on both sides of the damper 6. Both ends of the spring 11 extend in a direction perpendicular to the axis of the hinge pin 5, one end is locked to the lid body 2, and the other end is locked to the presser fitting 12, so that the lid body 2 is centered on the hinge pin 5. It is energized to rotate and release. The presser fitting 12 has a pair of arms 14 that are fixed to the main body 2 with screws 13 and extend further outside the two springs 11. Further, a cylindrical bush 15 is inserted into the hinge pin 5, and a U-shaped bearing portion 17 provided on the side plate portion 16 of the main body 2 orthogonal to the hinge pin 5 supports the hinge pin 5 via the bush 15. And the arm part 14 of the pressing metal 12 is pressed down so that the hinge pin 5 does not come off from the bearing part 17. The hinge pin 5 is provided with a metal reinforcing plate 18 facing the outer side of the bushes 15 on both sides, and the lid 2 is attached to the reinforcing plate 18.

図３に前記の構造を分解した様子を、また、図４に押さえ金具１２の腕部１４の中心での断面（ａ）および本体２の側板１６の中心での断面（ｂ）を示し、その形状を詳しく説明する。ヒンジピン５は、丸棒の一部を軸方向に沿って平面的に削り落とした形状であり、断面が円弧５ａと弦５ｂからなるＤの字型の全長に渡って同じ係合形状を有する金属棒である。ダンパ６は、ヒンジピン５を挿通する挿通穴１９を有し、挿通穴１９は、ヒンジピン５の係合形状と等しい係合形状を有している。補強板１８にヒンジピン５を挿入して係合させる係合穴２０も、同じＤ型の係合形状をしている。また、押さえ金具１２の腕部１４は、図４において右下が開放した、ヒンジピン５の係合形状の円弧５ａに接する円弧を有するフックになっている。円筒形のブシュ１５は、押さえ金具１２の腕部１４と補強板１８とに挟まれており、本体２の側板部１６の軸受部１７に真上から嵌め込まれるようになっている。   FIG. 3 shows a state where the structure is disassembled, and FIG. 4 shows a cross section (a) at the center of the arm portion 14 of the presser fitting 12 and a cross section (b) at the center of the side plate 16 of the main body 2. The shape will be described in detail. The hinge pin 5 has a shape in which a part of a round bar is scraped planarly along the axial direction, and the cross-section is a metal having the same engagement shape over the entire length of the D-shape composed of the arc 5a and the chord 5b. It is a stick. The damper 6 has an insertion hole 19 through which the hinge pin 5 is inserted, and the insertion hole 19 has an engagement shape equal to the engagement shape of the hinge pin 5. The engagement hole 20 into which the hinge pin 5 is inserted and engaged with the reinforcing plate 18 also has the same D-shaped engagement shape. Further, the arm portion 14 of the presser fitting 12 is a hook having an arc that is in contact with the arc 5a of the engagement shape of the hinge pin 5 that is opened at the lower right in FIG. The cylindrical bush 15 is sandwiched between the arm portion 14 of the presser fitting 12 and the reinforcing plate 18 and is fitted into the bearing portion 17 of the side plate portion 16 of the main body 2 from directly above.

次に、前記構成からなる炊飯器１の蓋体３開閉時の作用について説明する。炊飯器１の図示しない開放ボタンを押すと、蓋体３がばね１１によりヒンジピン５を中心にして開放してゆく。ヒンジピン５の係合形状は、直線の弦５ｂの部分で、係合しているダンパ６および補強板１８と相互に回転トルクを伝達しあうことができる。補強板１８は、ヒンジピン５を回転させ、ヒンジピン５の回転はダンパ６の挿通穴１９を回転させる。この挿通穴１９の回転は、本体２の壁部９に座板８が当接することで回転を規制されているダンパ６によって減衰されてゆっくりとした回転運動となる。これによって、補強板１８に取付けられている蓋体２も、ゆっくりと回動することになる。   Next, the effect | action at the time of the cover body 3 opening / closing of the rice cooker 1 which consists of the said structure is demonstrated. When an unillustrated release button of the rice cooker 1 is pressed, the lid 3 is opened by the spring 11 around the hinge pin 5. The engaging shape of the hinge pin 5 is such that the rotational torque can be transmitted between the engaging damper 6 and the reinforcing plate 18 at the portion of the straight chord 5b. The reinforcing plate 18 rotates the hinge pin 5, and the rotation of the hinge pin 5 rotates the insertion hole 19 of the damper 6. The rotation of the insertion hole 19 is attenuated by the damper 6 whose rotation is restricted by the seat plate 8 coming into contact with the wall portion 9 of the main body 2 to be a slow rotational motion. As a result, the lid 2 attached to the reinforcing plate 18 also rotates slowly.

ヒンジピン５は、図４に示すように、蓋体２を閉塞した状態では、係止形状の弦５ｂが下を向いており、蓋体２が開放されたときには、２点鎖線で示すように約９０度回転して係止形状の弦５ｂがほぼ垂直になる。蓋体２を開放するときには、反動により、ヒンジピン５をＡ方向に押し上げる力が強く働く。この力の方向では、常に、押さえ金具１２の腕部１４の円弧の部分がヒンジピン５の円弧５ａを受け止めている。ヒンジピン５は、押さえ金具１２の腕部１４に対して、円弧５ａと弦５ｂとがつくる角がＡ方向に当接することがないので滑らかに回転することができる。そして、強度を有する押さえ金具１２がヒンジピン５の円弧５ａに広く当接しているため、押さえ金具１２およびヒンジピン５は磨耗しにくい。また、本体２の軸受部１７は、ヒンジピン５を円弧５ａと弦５ｂとの角がある方向から受け止めるが、円筒形のブシュ１５を介して接しており、直接にヒンジピン５の角が当接しないので磨耗しにくい。   As shown in FIG. 4, when the lid 2 is closed, the hinge pin 5 has a locking-shaped chord 5b facing downward, and when the lid 2 is opened, the hinge pin 5 is approximately as shown by a two-dot chain line. Rotating 90 degrees makes the locking string 5b substantially vertical. When the lid 2 is opened, a force that pushes up the hinge pin 5 in the A direction strongly acts due to the reaction. In the direction of this force, the arc portion of the arm portion 14 of the presser fitting 12 always receives the arc 5 a of the hinge pin 5. The hinge pin 5 can rotate smoothly because the angle formed by the arc 5a and the string 5b does not abut against the arm portion 14 of the presser fitting 12 in the A direction. And since the presser fitting 12 having strength is in wide contact with the arc 5a of the hinge pin 5, the presser fitting 12 and the hinge pin 5 are not easily worn. The bearing portion 17 of the main body 2 receives the hinge pin 5 from the direction in which the angle between the arc 5a and the string 5b is present, but is in contact via the cylindrical bush 15 so that the corner of the hinge pin 5 does not directly contact. It is hard to wear out.

蓋体２の回動のトルクは、ヒンジピン５と補強板１８の係合穴２０との間で前記係合形状の弦５ｂの部分により伝達されるため、この小さな係合穴２０に集中して大きな力が加わる。一般に樹脂製である蓋体２に直接ヒンジピン５と係合せずに、金属製の補強板１８の係合穴２０でヒンジピン５と係合し、さらに、補強板１８に蓋体３を、蓋体２の一部に力が集中しないように取り付けることで、蓋体２の破損および磨耗を防止できる。逆に、ヒンジピン５も補強板１８の係合穴２０から大きな力を受けるが、ヒンジピン５は、簡単な形状であるので、ＳＵＳ４３０のような特に硬い金属で製作することも可能である。また、補強板１８も、ヒンジピン５と同じ硬い金属で製作して、ヒンジピン５と補強板１８とがともに磨耗しないようにすることができる。   Since the rotation torque of the lid 2 is transmitted between the hinge pin 5 and the engagement hole 20 of the reinforcing plate 18 by the portion of the string 5b having the engagement shape, the torque is concentrated on the small engagement hole 20. Great power is added. In general, the lid 2 made of resin is not directly engaged with the hinge pin 5 but is engaged with the hinge pin 5 through the engagement hole 20 of the metal reinforcing plate 18, and the lid 3 is attached to the reinforcing plate 18. By attaching so that the force is not concentrated on a part of 2, breakage and wear of the lid 2 can be prevented. Conversely, the hinge pin 5 also receives a large force from the engagement hole 20 of the reinforcing plate 18, but the hinge pin 5 has a simple shape and can be made of a particularly hard metal such as SUS430. Further, the reinforcing plate 18 can be made of the same hard metal as the hinge pin 5 so that the hinge pin 5 and the reinforcing plate 18 are not worn together.

ダンパ６は、座板８が本体２に設けられた壁部９に固定されることなく、壁部９から座板８の座面がわずかに隙間を有して当接することによって回転が規制されている。これは、もし、ダンパ６を壁部９に固定してしまうと、本体２は、２箇所の軸受部１７でブシュ１５を介して、さらに壁部９でダンパ６を介して、合計３箇所で１つのヒンジピン５を保持することになる。この場合、この３箇所が厳密に同じ回転軸上に位置する必要があり、本体２には厳密な加工精度が要求されることになる。しかし、本実施形態のように、ダンパ６の位置に自由度を持たせたので、本体は、通常の加工精度で製作することができる。このように回転を規制されたダンパ６は、軸に垂直な方向に力を受けずに回転方向の力のみを受け止めて、挿通穴１９に挿通されたヒンジピン５の回転を減衰させるようにだけ働くことができる。また、壁部９に設けた一対のガイド１０の間にダンパ６の座板８を配置することで、ダンパ６は、ヒンジピン５に沿って横滑りしてばね１１に接触し、ばね１１の働きを阻害することがない。   The rotation of the damper 6 is restricted by the seat surface of the seat plate 8 coming into contact with the wall portion 9 with a slight gap without the seat plate 8 being fixed to the wall portion 9 provided on the main body 2. ing. If the damper 6 is fixed to the wall portion 9, the main body 2 has two bearing portions 17 via bushes 15, and the wall portion 9 via the damper 6 at a total of three locations. One hinge pin 5 is held. In this case, these three places need to be positioned on the same rotational axis, and the main body 2 is required to have a strict processing accuracy. However, since the position of the damper 6 has a degree of freedom as in this embodiment, the main body can be manufactured with normal processing accuracy. The damper 6 whose rotation is restricted in this way works only to attenuate the rotation of the hinge pin 5 inserted through the insertion hole 19 by receiving only the force in the rotation direction without receiving the force in the direction perpendicular to the axis. be able to. Further, by arranging the seat plate 8 of the damper 6 between the pair of guides 10 provided on the wall portion 9, the damper 6 slides sideways along the hinge pin 5 to contact the spring 11, and the function of the spring 11 is achieved. There is no hindrance.

以上のように、本実施形態の炊飯器１は、ばね１１で付勢して、ダンパ６によって緩やかに蓋体２を開放させることができ、破損の危険がなく、動作に高級感がある。また、本実施形体の構造は、簡単であるために安価で、場所を取らないので炊飯器１は大型化しない。   As mentioned above, the rice cooker 1 of this embodiment can be energized with the spring 11, can open the cover body 2 gently with the damper 6, there is no danger of breakage, and operation | movement has a high-class feeling. Moreover, since the structure of this embodiment is simple and inexpensive, it does not take up space, so the rice cooker 1 does not increase in size.

次に、図５および図６に本発明の第２実施形態である炊飯器１の本体２に蓋体３を取り付けている部分を示す。第１実施形態と同じ構成要素には、同じ符号を付して説明を省略する。本実施形態の炊飯器１のヒンジピン５は、断面が正方形の係合形状を有する角棒である。したがって、ダンパ６の挿通穴１９および補強板１８の係合穴２０も同様に正方形の係合形状を有している。また、ダンパ６は、座板８の上端を、本体２の壁部９にねじ２１で固定した回り止め２２で隙間を持たせて挟み込んでいる。ブシュ１５はダンパ６と補強板１８とに両端が接する長い円筒であり、押さえ金具１２の腕部１４は、直接ヒンジピン５と接触しないでこのブシュ１５を介して、本体２の軸受部１７とともにヒンジピン５を保持している。   Next, the part which has attached the cover body 3 to the main body 2 of the rice cooker 1 which is 2nd Embodiment of this invention to FIG. 5 and FIG. 6 is shown. The same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted. The hinge pin 5 of the rice cooker 1 of this embodiment is a square bar having an engagement shape with a square cross section. Therefore, the insertion hole 19 of the damper 6 and the engagement hole 20 of the reinforcing plate 18 also have a square engagement shape. Further, the damper 6 is sandwiched between the upper end of the seat plate 8 with a rotation stopper 22 fixed to the wall portion 9 of the main body 2 with a screw 21 with a gap. The bush 15 is a long cylinder whose both ends are in contact with the damper 6 and the reinforcing plate 18, and the arm portion 14 of the presser fitting 12 is not directly in contact with the hinge pin 5, and the hinge pin together with the bearing portion 17 of the main body 2 via this bush 15. 5 is held.

この構成によると、ヒンジピン５を正方形断面の角棒としたことで、ヒンジピン５は、ダンパ６の挿通穴１９および補強板１８の係合穴２０と係合し、正方形の４面に分散して回転トルクを伝達する。このため、補強板１８の係合穴２０はより大きな回転トルクを授受することができ、破損および磨耗しにくい。また、ヒンジピン５は簡単な形状なので安価である。この場合、押さえ金具１２の腕部１４がヒンジピン５の角に接しないように、ブシュ１５を長いものとして、このブシュ１５を介してヒンジピン５を側板部１６の軸受部１７に保持する構造とする必要がある。また、ダンパ６の座板８を本体２の壁部９との間に挟みこむ回り止め２２を設けたので、本体２の壁部９にガイドを設けなくてもダンパ６の横滑りを防止できる。さらに、壁部９が座板８の反対側の端部に達する広い壁でなくても、壁部９と回り止め２２とで座板８の一端を挟み込んでダンパ６の回転を両方向に規制することができる。   According to this configuration, since the hinge pin 5 is a square bar having a square cross section, the hinge pin 5 engages with the insertion hole 19 of the damper 6 and the engagement hole 20 of the reinforcing plate 18, and is distributed over four square surfaces. Transmits rotational torque. For this reason, the engagement hole 20 of the reinforcing plate 18 can transmit and receive a larger rotational torque and is not easily damaged or worn. Further, the hinge pin 5 is inexpensive because it has a simple shape. In this case, the bush 15 is long so that the arm portion 14 of the presser fitting 12 does not contact the corner of the hinge pin 5, and the hinge pin 5 is held by the bearing portion 17 of the side plate portion 16 via the bush 15. There is a need. Further, since the rotation stopper 22 is provided to sandwich the seat plate 8 of the damper 6 between the wall portion 9 of the main body 2, the side slip of the damper 6 can be prevented without providing a guide on the wall portion 9 of the main body 2. Furthermore, even if the wall portion 9 is not a wide wall reaching the opposite end of the seat plate 8, the end of the seat plate 8 is sandwiched between the wall portion 9 and the rotation stopper 22 to restrict the rotation of the damper 6 in both directions. be able to.

本発明の１実施形態である炊飯器の側面図。The side view of the rice cooker which is 1 embodiment of this invention. 図１の炊飯器の部分斜視図。The partial perspective view of the rice cooker of FIG. 図１の炊飯器の部分分解斜視図。The partial exploded perspective view of the rice cooker of FIG. 図１の炊飯器の部分断面図。The fragmentary sectional view of the rice cooker of FIG. 本発明の第２実施形態である炊飯器の部分斜視図。The fragmentary perspective view of the rice cooker which is 2nd Embodiment of this invention. 図５の炊飯器の部分分解斜視図。The partial exploded perspective view of the rice cooker of FIG.

符号の説明Explanation of symbols

１ 炊飯器
２ 本体
３ 蓋体
５ ヒンジピン
５ａ 円弧
５ｂ 弦
６ ダンパ
８ 座板
９ 壁部（規制部）
１０ ガイド
１１ ばね
１２ 押さえ金具
１５ ブシュ
１７ 軸受部
１８ 補強板
１９ 挿通穴
２２ 回り止め
DESCRIPTION OF SYMBOLS 1 Rice cooker 2 Main body 3 Cover body 5 Hinge pin 5a Arc 5b String 6 Damper 8 Seat plate 9 Wall part (regulation part)
DESCRIPTION OF SYMBOLS 10 Guide 11 Spring 12 Holding metal fitting 15 Bush 17 Bearing part 18 Reinforcement plate 19 Insertion hole 22 Non-rotating

Claims (7)

本体にヒンジピンによって回動可能に取り付けた蓋体と、該蓋体を開放する方向に付勢するばねと、前記ヒンジピンに挿通されたダンパとを有する炊飯器であって、
前記ヒンジピンは、断面が非円形の係合形状であり、
前記ダンパは、前記ヒンジピンの係合形状と一致する係合形状を有する挿通穴を有し、該挿通穴に挿通した前記ヒンジピンの該ダンパに対する回転を減衰するものであり、該ダンパの動きを規制するための座面を有し、
前記本体または前記蓋体の一方は、前記ヒンジピンを固定する取付部を有し、
他方は、前記座面と当接して前記ダンパの前記ヒンジピン周りの回動を規制する平面を備えた規制部を有することを特徴とする炊飯器。 A rice cooker having a lid attached to the main body so as to be rotatable by a hinge pin, a spring biased in a direction to open the lid, and a damper inserted through the hinge pin,
The hinge pin has a non-circular engagement shape in cross section,
The damper has an insertion hole having an engagement shape that matches the engagement shape of the hinge pin, and attenuates rotation of the hinge pin that is inserted into the insertion hole with respect to the damper, and restricts the movement of the damper. Having a seating surface for
One of the main body or the lid body has a mounting portion for fixing the hinge pin,
The other is a rice cooker having a regulating portion provided with a flat surface that abuts against the seat surface and regulates the rotation of the damper around the hinge pin. 前記規制部の平面は、前記ダンパの座面と隙間を有して当接することを特徴とする請求項１に記載の炊飯器。2. The rice cooker according to claim 1, wherein the flat surface of the restricting portion is in contact with the seat surface of the damper with a gap. 前記ヒンジピンを固定していない前記本体または前記蓋体は、前記ダンパの前記ヒンジピンの回転軸方向への動きを規制するガイドを有することを特徴とする請求項１または２に記載の炊飯器 The rice cooker according to claim 1 or 2 , wherein the main body or the lid body to which the hinge pin is not fixed has a guide for restricting movement of the damper in the direction of the rotation axis of the hinge pin. 前記ヒンジピンを固定していない前記本体または前記蓋体は、前記規制部とともに前記ダンパの一部を挟み込む回り止めを有することを特徴とする請求項１から３のいずれかに記載の炊飯器。 The rice cooker according to any one of claims 1 to 3, wherein the main body or the lid body to which the hinge pin is not fixed has a detent that sandwiches a part of the damper together with the restriction portion. 前記ヒンジピンを固定していない前記本体または前記蓋体は、前記ヒンジピンを保持するＵ字型の軸受部と、前記軸受部の開放した方向への前記ヒンジピンの移動を規制する押さえ部材とを有し、
前記軸受け部は、前記ヒンジピンを外面が円形のブシュを介して保持することを特徴とする請求項１から４のいずれかに記載の炊飯器。 The body or the lid does not fix the hinge pin, possess a U-shaped bearing portion which holds the hinge pin, and a pressing member for restricting the movement of the hinge pin to the open direction of the bearing portion ,
The bearing unit, cooker according to any one of claims 1 to 4, the hinge pin outer surface and wherein the holding through a circular bushing. 前記ヒンジピンの係合形状は、円弧と弦とからなるＤの字型であり、
前記押さえ部材は、前記ヒンジピンと接する金属製の部材であり、
前記ヒンジピンは、前記係合形状の円弧と弦との角が前記押さえ部材に当接しない範囲内で回動可能であることを特徴とする請求項５に記載の炊飯器。 The engagement shape of the hinge pin is a D-shape consisting of an arc and a string,
The pressing member is a metal member in contact with the hinge pin ,
The rice cooker according to claim 5 , wherein the hinge pin is rotatable within a range in which corners of the arc and string of the engagement shape do not contact the pressing member . 前記ブシュは、前記前記本体または前記蓋体の前記取付部と、前記押さえ部材との間に挟まれていることを特徴とする請求項６に記載の炊飯器。The said bush is pinched | interposed between the said attaching part of the said main body or the said cover body, and the said pressing member, The rice cooker of Claim 6 characterized by the above-mentioned.
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CN108158417A (en) * 2018-01-08 2018-06-15 珠海格力电器股份有限公司 Damping structure and the device including the damping structure

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