JPS624806Y2 - - Google Patents

Description

【考案の詳細な説明】 本考案は、オーブントースタ等の電気調理器に
関する。[Detailed Description of the Invention] The present invention relates to an electric cooking device such as a toaster oven.

電気調理器には管形のヒータ装置が使用され
る。管形ヒータ装置は石英管内にコイル状の発熱
線を挿通するとともに、石英管の両端部に夫々碍
子を取付けたものであり、従来の管形ヒータ装置
において発熱線端に接続された端子ねじは、石英
管の軸線方向に沿つて碍子から突出するように配
設されている。このような従来のヒータ装置を例
えばオーブントースタの上下動自在な加熱ユニツ
トに使用する場合には、ユニツトの反射板の端板
間にヒータ装置が横架されるから、調理室の左右
側壁には端板に貫通支持されたヒータ装置の端部
を逃げて上下動を許す通孔を必要とし、したがつ
て調理室の熱が通孔から逃げ易い問題があつた。 A tube-shaped heater device is used in an electric cooker. A tubular heater device has a coiled heating wire inserted into a quartz tube and an insulator attached to each end of the quartz tube.In a conventional tubular heater device, the terminal screw connected to the end of the heating wire is , are arranged so as to protrude from the insulator along the axial direction of the quartz tube. When such a conventional heater device is used, for example, in a vertically movable heating unit of a toaster oven, the heater device is hung horizontally between the end plates of the unit's reflector plate, so there is no space between the left and right side walls of the cooking chamber. This requires a through hole that allows the heater device to move up and down through the end of the heater device that is supported through the end plate, and therefore there is a problem in that heat in the cooking chamber tends to escape through the through hole.

本考案は上記の事情のもとに案出されたもの
で、その目的は、調理室からの熱の逃げを防止で
き、そして、ヒータ装置の端子ねじの緩みを防止
できるとともに、仮に管体と碍子との結合不良を
生じた場合にも分解を防止でき、万が一にも漏電
の危険を生じないようにした電気調理器を提供す
ることにある。 The present invention was devised under the above circumstances, and its purpose is to prevent heat from escaping from the cooking chamber, prevent the terminal screws of the heater device from loosening, and temporarily prevent the pipe body from loosening. To provide an electric cooker which can prevent disassembly even if poor connection with an insulator occurs and prevents the risk of electrical leakage in any case.

すなわち、本考案は、上下動自在な上部反射板
の横方向に沿う部分の下面にヒータ装置を直接取
付けるとともに、発熱線が挿通された管体の端部
に嵌着される碍子に、発熱線と接続された端子ね
じを管体の軸線方向と交叉する方向に突出させて
設けるねじ収納溝を設けるとともに、この収納溝
の入口側に抜止め突部を設けて、この突部により
端子ねじに設けた締付部材を係止するようにした
ことを特徴とする電気調理器である。 That is, in the present invention, the heater device is directly attached to the lower surface of the horizontally movable upper reflector, and the heating wire is attached to the insulator fitted to the end of the tube through which the heating wire is inserted. A screw storage groove is provided to allow the terminal screw connected to the terminal screw to protrude in a direction perpendicular to the axial direction of the tube body, and a retaining protrusion is provided on the entrance side of this storage groove. This electric cooking appliance is characterized in that a provided tightening member is locked.

以下本考案を図面に示した一実施例を参照して
説明する。 The present invention will be described below with reference to an embodiment shown in the drawings.

第１図中１は内筐体で、その外側は外筐体２で
被われていて、かつこれら各筐体１，２の前側開
口は扉３で開閉されるようになつている。内筐体
１内の上部には加熱ユニツト４が配設され、これ
と内筐体１とで調理室５が画されている。加熱ユ
ニツト４は、上部反射板６の横方向に沿う部分の
下面にヒータ装置７，７を取付けて形成されてい
るとともに、図示しない昇降機構に支持されて上
下動自在に設けられている。 In FIG. 1, reference numeral 1 denotes an inner casing, the outside of which is covered by an outer casing 2, and the front openings of each of these casings 1 and 2 can be opened and closed by a door 3. A heating unit 4 is disposed in the upper part of the inner casing 1, and a cooking chamber 5 is defined by this and the inner casing 1. The heating unit 4 is formed by attaching heater devices 7, 7 to the lower surface of the portion along the lateral direction of the upper reflecting plate 6, and is supported by a lifting mechanism (not shown) so as to be movable up and down.

上部反射板６は金属薄板製で、その横方向に沿
う部分の左右両端部には、第２図および第５図に
示すように取付孔８，８が夫々開口形成されてい
るとともに、これら取付孔８，８の孔縁には夫々
厚み方向に折曲げ可能な一対の係合爪９，９が相
対向して折曲げ形成されている。 The upper reflecting plate 6 is made of a thin metal plate, and mounting holes 8, 8 are formed at both left and right ends of the horizontal portion thereof, as shown in FIGS. A pair of engaging claws 9, 9 which can be bent in the thickness direction are formed on the edges of the holes 8, 8 so as to face each other.

そして、ヒータ装置７は、第５図および第６図
に示したように管体１０、発熱線１１、左右の碍
子１２、左右の端子ねじ１３、締付部材つまりワ
ツシヤ１４およびナツト１５から形成されてい
る。管体１０は赤外線透過性の材料からなり、本
実施例は石英管の場合であり、この内部には上記
発熱線１１がコイル状にして挿通されている。発
熱線１１の端は端子ねじ１３の頭部の溝内にかし
め付けにより圧着されており、また発熱線１１は
引張られた状態で管体１０を挿通している。そし
て、第２図から第６図に示したように碍子１２は
管体嵌合穴１６を備え、この嵌合穴１６を管体１
０の端部に嵌着して設けられている。なお、この
嵌着部には接着材（図示しない）が施されてい
る。さらに、碍子１２には上記端子ねじ１３を管
体１０の軸線方向と交叉する方向に突出させて収
納するねじ収納溝１７が設けられている。このね
じ収納溝１７に収納された端子ねじ１３は碍子１
２からの突出部分にワツシヤ１４およびナツト１
５を取付けて、ナツト１５の締付けにより碍子１
２に固定されている。なお、ワツシヤ１４は必要
により省略してもよい。しかも、碍子１２におけ
る端子ねじ１３の突出面には、ねじ収納溝１７の
入口側において上記締付部材が係止可能な抜止め
突部１８が設けられている。また、上記管体嵌合
穴１６は、その奥端面にねじ収納溝１７に連なる
発熱線収納凹部１９を有している。この凹部１９
は管体１０から引出された発熱線１１の端部を収
納して、管体１０を管体嵌合穴１６の奥端に押当
てて位置決めしても、上記発熱線１１の引出し端
部が管端に当たり、断線の原因や管端破損の原因
とならないようにするための措置である。また、
碍子１２はその両側面に係合溝２０，２０を有し
ている。この係合溝２０と上記取付孔８および係
合爪９とはヒータ装置７の取付け手段をなしてい
る。そして、以上の構成のヒータ装置７は、取付
孔８に一部を挿入した後、上記係合爪９，９をド
ライバー等により折り曲げて係合溝２０，２０に
係合させることにより、上部反射板６の横方向に
沿う部分の下面に取付けられている。勿論、この
取付けによつて上部反射板６の横方向に沿う左右
端板６ａ，６ａ間にヒータ装置７，７が納められ
るから、上記内筐体１の左右側壁には碍子１２を
逃げるための通孔を必要としない。したがつて加
熱効率がよい。 As shown in FIGS. 5 and 6, the heater device 7 is formed from a tube body 10, a heating wire 11, left and right insulators 12, left and right terminal screws 13, a tightening member, that is, a washer 14, and a nut 15. ing. The tubular body 10 is made of an infrared transparent material, and in this embodiment it is a quartz tube, into which the heating wire 11 is inserted in the form of a coil. The end of the heating wire 11 is crimped into a groove in the head of the terminal screw 13 by caulking, and the heating wire 11 is inserted through the tube body 10 in a tensioned state. As shown in FIGS. 2 to 6, the insulator 12 is provided with a tube fitting hole 16, and this fitting hole 16 is connected to the tube
It is fitted onto the end of 0. Note that an adhesive (not shown) is applied to this fitting portion. Further, the insulator 12 is provided with a screw storage groove 17 in which the terminal screw 13 is projected and stored in a direction intersecting the axial direction of the tube body 10. The terminal screw 13 stored in this screw storage groove 17 is attached to the insulator 1.
Washer 14 and nut 1 are attached to the protruding part from 2.
5, and tighten the nut 15 to tighten the insulator 1.
It is fixed at 2. Note that the washer 14 may be omitted if necessary. In addition, a retaining protrusion 18 is provided on the protruding surface of the terminal screw 13 in the insulator 12 on the entrance side of the screw storage groove 17 to which the tightening member can be engaged. Further, the tubular body fitting hole 16 has a heating wire storage recess 19 connected to the screw storage groove 17 on its rear end surface. This recess 19
Even if the end of the heat generating wire 11 drawn out from the tube body 10 is stored and the tube body 10 is pressed against the inner end of the tube body fitting hole 16 and positioned, the drawn out end of the heat generating wire 11 is This is to prevent the wire from hitting the pipe end and causing wire breakage or damage to the pipe end. Also,
The insulator 12 has engagement grooves 20, 20 on both sides thereof. The engagement groove 20, the attachment hole 8, and the engagement claw 9 constitute attachment means for the heater device 7. After a part of the heater device 7 having the above structure is inserted into the mounting hole 8, the engaging claws 9, 9 are bent with a screwdriver or the like and engaged with the engaging grooves 20, 20, so that the upper reflection It is attached to the lower surface of the portion along the horizontal direction of the plate 6. Of course, by this installation, the heater devices 7, 7 are housed between the left and right end plates 6a, 6a along the lateral direction of the upper reflector plate 6, so there are holes on the left and right side walls of the inner housing 1 to allow the insulator 12 to escape. No through holes required. Therefore, heating efficiency is good.

なお、図中２１はヒータ装置７，７を直列に接
続するための金属板製の配線部材、２２はリード
線よりなる他の配線部材で、これらの部材２１，
２２は夫々上記端子ねじ１３…に螺合される他の
締付ナツトで固定される。また、２３は被調理物
載せ体、２４はこの載せ体２３を扉３の開閉に連
動させて前後に移動させる連動リンク、２５は他
のヒータ装置である。 In addition, in the figure, 21 is a wiring member made of a metal plate for connecting the heater devices 7, 7 in series, and 22 is another wiring member made of a lead wire.
22 are fixed with other tightening nuts screwed onto the terminal screws 13, respectively. Further, 23 is a cooking object mounting body, 24 is an interlocking link that moves this mounting body 23 back and forth in conjunction with the opening and closing of the door 3, and 25 is another heater device.

上記一実施例は以上のように構成したが、本考
案の実施に当つては、考案の要旨に反しない限
り、調理室、上部反射板、取付け手段、ヒータ装
置、管体、発熱線、端子ねじ、碍子、ねじ収納
溝、抜止め突部等の具体的な構造、形状、位置等
は、上記一実施例に制約されるものではなく種々
の構成にして実施できることは勿論である。 The above-mentioned embodiment is constructed as described above, but in carrying out the present invention, the cooking chamber, the upper reflector, the mounting means, the heater device, the pipe body, the heating wire, the terminal, etc. It goes without saying that the specific structures, shapes, positions, etc. of the screws, insulators, screw storage grooves, retaining protrusions, etc. are not limited to the one embodiment described above, and can be implemented in various configurations.

以上説明した本考案は、上記実用新案登録請求
の範囲に記載の構成を要旨とする。したがつて、
本考案によれば、上下動する上部反射板の横方向
に沿う部分の下面にヒータ装置を取付け手段を介
して直接取付けたから、調理室の左右側壁にはヒ
ータ装置の碍子が貫通することがなく、したがつ
て上記側壁にヒータ装置の碍子を逃げる通孔を必
要としないので、調理室の熱が外部に逃げること
を防止して熱効率を向上できる。さらに本考案に
よれば、管体の端部に嵌着される碍子にねじ収納
溝を設けて、この溝に発熱線に接続された端子ね
じを収納するようにしたから、端子ねじの一部を
碍子から管体の軸線方向と交叉する方向に突出さ
せることができる。そして、碍子にはねじ収納溝
の入口側に抜止め突部を設けて、この突部に端子
ねじの突出部分に取付けた締付部材が係止可能と
したから、例えば管体と碍子との接着が固まるま
での間、或は接着力が消失した場合等に、外部か
らの振動等で管体と碍子とが分離しようとして
も、締付部材が抜止め突部に引掛かるので、管体
と碍子とが分解することがない。しかも、この場
合において締付部材の回転は抜止め突部により防
止されるので、端子ねじのゆるみの進行も防止で
きる。このため、端子ねじが周囲の金属部品に接
触して漏電を起こすような万ヶ一の事故が発生す
るおそれもない。 The gist of the present invention described above is the configuration described in the claims of the above-mentioned utility model registration. Therefore,
According to the present invention, since the heater device is directly attached to the lower surface of the horizontally moving portion of the upper reflector that moves up and down through the mounting means, the insulator of the heater device does not penetrate the left and right side walls of the cooking chamber. Therefore, since there is no need for a through hole in the side wall to allow the insulator of the heater device to escape, it is possible to prevent heat from the cooking chamber from escaping to the outside and improve thermal efficiency. Furthermore, according to the present invention, a screw storage groove is provided in the insulator fitted to the end of the tube, and the terminal screw connected to the heating wire is stored in this groove. can be made to protrude from the insulator in a direction intersecting the axial direction of the tube body. The insulator is provided with a retaining protrusion on the entrance side of the screw storage groove, and the tightening member attached to the protruding part of the terminal screw can be locked to this protrusion, so that, for example, the tube body and the insulator can be Even if the pipe body and insulator try to separate due to vibrations from the outside until the adhesive hardens or when the adhesive strength is lost, the clamping member will catch on the retaining protrusion, so the pipe body and the insulator will not disintegrate. Moreover, in this case, since rotation of the tightening member is prevented by the retaining protrusion, further loosening of the terminal screw can be prevented. Therefore, there is no risk of an accident in which the terminal screw comes into contact with surrounding metal parts and causes a current leakage.

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

図面は本考案の一実施例を示し、第１図はオー
ブントースタの一部を断面で示す側面図、第２図
はヒータ装置取付部の斜視図、第３図は碍子の正
面図、第４図は碍子の側面図、第５図はヒータ装
置取付部の分解斜視図、第６図はヒータ装置端部
の断面図である。 ５……調理室、６……上部反射板、、８……取
付孔、（取付け手段）、９……係合爪（取付け手
段）、２０……係合溝（取付け手段）、７……ヒー
タ装置、１０……管体、１１……発熱線、１２…
…碍子、１３……端子ねじ、１４……締付部材
（ナツト）、１５……締付部材（ナツト）、１６…
…管体嵌合穴、１７……ねじ収納溝、１８……抜
止め突部。 The drawings show one embodiment of the present invention, in which Fig. 1 is a side view showing a part of the toaster oven in cross section, Fig. 2 is a perspective view of the heater device mounting part, Fig. 3 is a front view of the insulator, and Fig. 4 is a side view showing a part of the toaster oven. The figure is a side view of the insulator, FIG. 5 is an exploded perspective view of the heater device mounting portion, and FIG. 6 is a sectional view of the end of the heater device. 5... Cooking chamber, 6... Upper reflector, 8... Mounting hole, (attachment means), 9... Engagement claw (attachment means), 20... Engagement groove (attachment means), 7... Heater device, 10...tube, 11...heating wire, 12...
...Insulator, 13...Terminal screw, 14...Tightening member (nut), 15...Tightening member (nut), 16...
...tube fitting hole, 17... screw storage groove, 18... retaining protrusion.

Claims (1)

【実用新案登録請求の範囲】 (1) 調理室と、この調理室の上部を画して上下動
自在に設けられて上記調理室の容積を変化させ
る上部反射板と、この上部反射板の横方向に沿
う部分の下側に配置されるヒータ装置と、この
ヒータ装置を上記上部反射板の横方向に沿う部
分に固定する取付け手段とを具備するととも
に、上記ヒータ装置を、赤外線透過性の管体内
に発熱線を挿通するとともに、この管体の両端
部に夫々碍子を嵌着し、各碍子には上記発熱線
端と接続された端子ねじを上記管体の軸線方向
と直交する方向に突出させて収納するねじ収納
溝を設けるとともに、上記上部反射板の横方向
に沿う部分の外面側に設けられる碍子の端子ね
じ突出面には、上記ねじ収納溝の入口側におい
て端子ねじの突出部分に取付けた締付け部材が
係止可能な抜止め突部を設けて形成したことを
特徴とする電気調理器。 (2) 上記碍子の管体嵌合穴はその奥端面に上記ね
じ収納溝に連なる発熱線収納凹部を有したこと
を特徴とする実用新案登録請求の範囲第(1)項記
載の電気調理器。[Scope of Claim for Utility Model Registration] (1) A cooking chamber, an upper reflector that defines the upper part of the cooking chamber and is provided to be movable up and down to change the volume of the cooking chamber, and the sides of the upper reflector. The heater device is provided with a heater device disposed below the portion along the direction, and a mounting means for fixing the heater device to the portion along the lateral direction of the upper reflector, and the heater device is attached to an infrared transparent tube. A heating wire is inserted into the body, and an insulator is fitted to each end of the tube, and a terminal screw connected to the end of the heating wire is protruded from each insulator in a direction perpendicular to the axial direction of the tube. At the same time, a terminal screw protruding surface of the insulator provided on the outer surface side of the portion along the lateral direction of the upper reflector plate is provided with a screw housing groove for storing the terminal screw at the entrance side of the screw housing groove. An electric cooking appliance characterized in that it is formed with a retaining protrusion that can lock an attached tightening member. (2) The electric cooker according to claim (1) of the utility model registration claim, wherein the tube body fitting hole of the insulator has a heating wire storage recess connected to the screw storage groove on its rear end surface. .