JPH10268600A - Supporting member - Google Patents

Supporting member

Info

Publication number
JPH10268600A
JPH10268600A JP9069316A JP6931697A JPH10268600A JP H10268600 A JPH10268600 A JP H10268600A JP 9069316 A JP9069316 A JP 9069316A JP 6931697 A JP6931697 A JP 6931697A JP H10268600 A JPH10268600 A JP H10268600A
Authority
JP
Japan
Prior art keywords
support
support member
attached
hole
diameter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP9069316A
Other languages
Japanese (ja)
Inventor
Takuma Sugano
琢磨 菅野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP9069316A priority Critical patent/JPH10268600A/en
Publication of JPH10268600A publication Critical patent/JPH10268600A/en
Pending legal-status Critical Current

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  • Accessory Devices And Overall Control Thereof (AREA)
  • Electrophotography Configuration And Component (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a supporting member which can be inserted from the burr surface of a sheet metal part, whose engaging part is prevented from coming off with respect to a sagging surface and which can be attached through one action. SOLUTION: This member 1 is constituted to be attached to a member to be attached in order to support the parts. In such a case, the member 1 is provided with a supporting shaft part 1b having a diameter large enough to be inserted in a hole formed on the member to be attached, supporting arm parts 1d1 and 1d2 integrated with the shaft part 1b at a root part, having shape spreading from the root part to a top part and can be elastically deformed, and a base plate part 1a integrally formed with the shaft part 1b. The arm parts 1d1 and 1d2 are constituted so that the outer surface of the root part may be inside the diameter of the shaft part 1b and the top part may be spread more outward than the hole diameter of the member to be attached, then they have plane parts 1i1 and 1i2 capable of abutting on the member to be attached.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は画像形成装置等の機
器のフレームやシャーシ、筐体等の部品を結合するため
の支持部材に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support member for connecting components such as a frame, a chassis and a housing of an apparatus such as an image forming apparatus.

【0002】[0002]

【従来の技術】従来、画像形成装置等の事務機器のフレ
ームやシャーシ、或いは筐体はプラスチック成形品であ
るモールド品、或いは板金部品により構成されている。
そして、これら複数の部品を結合する場合は、回動する
部品を別の板金部品に軸支する場合には、板金部品と一
体に軸を形成することは困難であるため、モールド品で
ある支持部材を別途用意する。或いは板金部品同士を直
接ネジ止等した場合には、画像形成装置等の給紙動作で
ビビリが発生するために、板金部品間にモールド品であ
る支持部材を別途介して構成される。
2. Description of the Related Art Conventionally, a frame, a chassis, or a housing of office equipment such as an image forming apparatus is formed of a molded product, such as a plastic molded product, or a sheet metal part.
When connecting a plurality of components to each other, if the rotating component is supported by another sheet metal component, it is difficult to form a shaft integrally with the sheet metal component. Prepare members separately. Alternatively, when the sheet metal parts are directly screwed or the like, chattering occurs in a sheet feeding operation of the image forming apparatus or the like, so that a support member, which is a molded product, is separately provided between the sheet metal parts.

【0003】図12は、その代表例としての従来のダボ支
持部材50を用いた画像形成装置の給紙ユニットの主フレ
ーム構成を示し、(a) を上視面図とすると、(b) は正面
図、(c) は右側面図である。
FIG. 12 shows a main frame configuration of a paper feeding unit of an image forming apparatus using a conventional dowel support member 50 as a typical example, and FIG. 12A is a top view, and FIG. The front view and (c) are right side views.

【0004】51は板金部品である前フレーム、52はモー
ルド品である後フレーム、53は板金部品で構成した紙ガ
イド板である。紙ガイド板53は、手前側をダボ支持部材
50を介して前フレーム51に軸支され、奥側は後フレーム
52から一体に形成された軸52aに挿通されて取り付けら
れている。このような構成により紙ガイド板53は回動可
能であり、紙搬送中にジャム(紙詰まり)が起きた場合
に所定位置より退避させられる。
[0005] Reference numeral 51 denotes a front frame which is a sheet metal part, 52 denotes a rear frame which is a molded product, and 53 denotes a paper guide plate formed of a sheet metal part. The paper guide plate 53 has a dowel support member on the near side.
It is supported by the front frame 51 via 50, and the back side is the rear frame
It is inserted and attached to a shaft 52a integrally formed from 52. With such a configuration, the paper guide plate 53 is rotatable, and is retracted from a predetermined position when a jam (paper jam) occurs during paper conveyance.

【0005】図13は図12のダボ支持部材50付近の拡大説
明図であり、図14はダボ支持部材50の詳細な形状説明図
である。図に示すように、ベースプレート50aから支持
軸50b、回転軸50c、ツマミ50d、ネジ孔50eが一体で
形成されている。支持軸50bは前フレーム51の孔51aに
挿通された後、回転軸50cが紙ガイド板53の孔53aに挿
通され、ネジ54によりネジ孔50eを介して、前フレーム
51に設けられたネジ下孔51bにダボ支持部材50がネジ止
される。このとき、作業者はツマミ50dを持ってネジ孔
50eをネジ下孔51bに合致させる。
FIG. 13 is an enlarged explanatory view of the vicinity of the dowel supporting member 50 in FIG. 12, and FIG. 14 is a detailed explanatory view of the shape of the dowel supporting member 50. As shown in the figure, a support shaft 50b, a rotation shaft 50c, a knob 50d, and a screw hole 50e are integrally formed from the base plate 50a. After the support shaft 50b is inserted into the hole 51a of the front frame 51, the rotating shaft 50c is inserted into the hole 53a of the paper guide plate 53, and the front frame 51 is screwed through the screw hole 50e.
The dowel support member 50 is screwed into a screw lower hole 51b provided in the 51. At this time, the operator holds the knob 50d and
Align 50e with the pilot hole 51b.

【0006】[0006]

【発明が解決しようとする課題】しかしながら、上記従
来例のダボ支持部材50では次のような課題があった。
However, the conventional dowel support member 50 has the following problems.

【0007】(1) 板金のプレス加工で形成される前フレ
ーム51は、内側51cに給紙機構部品(図示せず)が取り
付けられるため、内側51cがダレ面であり、外側51dが
バリ面となる。このバリ面からダボ支持部材50を挿通す
るために、弾性を有する係合爪による固定方法であるワ
ンタッチ取り付けが出来ない。このため、従来例では、
ダボ支持部材50をネジ止方式により取り付けていたが、
そのためにベースプレート50aの面積とツマミ50dの空
間を確保しなければならなかった。
(1) In the front frame 51 formed by pressing a sheet metal, since a paper feed mechanism component (not shown) is attached to the inner side 51c, the inner side 51c is a sagging surface, and the outer side 51d is a burr surface. Become. In order to insert the dowel support member 50 from the burr surface, one-touch mounting, which is a fixing method using elastic engaging claws, cannot be performed. For this reason, in the conventional example,
The dowel support member 50 was attached by screwing,
For this purpose, the area of the base plate 50a and the space for the knob 50d must be secured.

【0008】更にネジ止のためのネジ下孔51bを設ける
ためと、ネジ54を用意しなければならず、コストアップ
の要因となっていた。
Further, a screw 54 has to be prepared for providing a screw lower hole 51b for screwing, which has been a factor of cost increase.

【0009】(2) 抜きバリは、板金部品を製造するため
のプレス加工の宿命ともいえるもので、高精度の金型で
もバリは発生する。このバリ取りを経済的に処理する方
法として、プレスパンチによるC面打ちがある。
(2) The punched burrs can be said to be the fate of press working for manufacturing sheet metal parts, and burrs are generated even with a high-precision mold. As a method of economically treating this deburring, there is C-face punching by a press punch.

【0010】プレスパンチの概念を図15に示す。図15
(a) に示す板金部品55のバリ55aは、プレスパンチ56を
工程に組み込むことにより、(b) のごとく潰されC面55
bに加工出来る。このように加工された板金部品55に、
図16及び図17に示すように、ダボ支持部材57を係合爪に
よってワンタッチ取り付けした従来例がある。
FIG. 15 shows the concept of the press punch. Fig. 15
The burr 55a of the sheet metal part 55 shown in (a) is crushed as shown in (b) by incorporating the press punch 56 into the process, and the C surface 55 is formed.
b can be processed. In the sheet metal part 55 processed in this way,
As shown in FIGS. 16 and 17, there is a conventional example in which the dowel support member 57 is attached one-touch with an engagement claw.

【0011】図16及び図17において、支持軸57aには、
弾性を有する係合爪57bが一体に2本設けられている。
支持軸57aは、板金部品55の孔55cに挿通され、係合爪
57bはC面55bにガイドされるため、その弾性により撓
んで十分滑らかに挿通されて端面55dに係止し、ダボ支
持部材57は板金部品55に取り付けられる。
In FIGS. 16 and 17, a support shaft 57a has
Two engaging claws 57b having elasticity are provided integrally.
The support shaft 57a is inserted into the hole 55c of the sheet metal part 55,
Since the guide 57b is guided by the C surface 55b, it is bent by its elasticity and is inserted sufficiently smoothly to be locked on the end face 55d, so that the dowel supporting member 57 is attached to the sheet metal part 55.

【0012】しかしながら、板金部品55にC面55bを設
けるために、孔55cの内端面55eのストレート部55fが
板厚tに対して小さくなり、ダボ支持部材57にかかるス
ラスト荷重を十分に受けることが出来ない。即ち、この
従来例は耐荷重用には適用し難い。
However, in order to provide the C surface 55b in the sheet metal part 55, the straight portion 55f of the inner end surface 55e of the hole 55c becomes smaller than the plate thickness t, and the thrust load applied to the dowel supporting member 57 is sufficiently received. Can not do. That is, this conventional example is difficult to apply for load-bearing applications.

【0013】また、プレス加工では、バリ面55gの反対
側であるダレ面55hには丸見55iが形成され、係合爪57
bにとっては抜ける方向に助長されている。このため、
この従来例は、抜け強度が十分ではなく、抜け方向に荷
重のかかる構造体には適用し難い。更に、図15(c) に示
すように、金型が粗悪であったり、また、金型の摩耗に
よって、バリ55aが十分に潰されずに残り、これが孔55
cの内側を向いてしまうと、係合爪によるワンタッチ取
り付けは通常ダレ面55h側から挿通するために、支持軸
57a及び係合爪57bの挿通が不可能になってしまう。
In press working, a round surface 55i is formed on a sagging surface 55h opposite to the burr surface 55g.
For b, it is promoted in the exit direction. For this reason,
This conventional example does not have sufficient pull-out strength and is difficult to apply to a structure in which a load is applied in the pull-out direction. Further, as shown in FIG. 15 (c), the mold is poor or the mold is worn, so that the burrs 55a are not sufficiently crushed and remain, and the holes 55a remain.
c, the one-touch attachment with the engagement claw is usually inserted from the sagging surface 55h side.
It becomes impossible to insert the 57a and the engaging claw 57b.

【0014】(3) また、類似の支持部材として、図18に
示すような、通称ロッキングサポートと呼ばれる部材58
が知られている。これは主に、電気部品である基板の固
定に用いられ、59はシャーシとしての板金部品、或いは
主基板であり、60は搭載される基板である。また、58a
は弾性を有する係合爪であり、孔59aに挿通される。59
が板金部品である場合には、ダレ面59bから挿通され
る。
(3) As a similar supporting member, a member 58 commonly called a locking support as shown in FIG.
It has been known. This is mainly used for fixing a board which is an electric component, 59 is a sheet metal part as a chassis or a main board, and 60 is a board to be mounted. Also, 58a
Is an engaging claw having elasticity, which is inserted into the hole 59a. 59
Is a sheet metal part, it is inserted through the sagging surface 59b.

【0015】一方、59,60が共に基板である場合には、
その材質が紙フェノール、或いはガラスエポキシであ
り、孔59a,60aの周囲に加工上のバリは発生しないこ
とから、任意の方向から挿通される。
On the other hand, when both 59 and 60 are substrates,
Since the material is paper phenol or glass epoxy, and no burrs are formed around the holes 59a and 60a during processing, it is inserted from any direction.

【0016】しかしながら、このようなロッキングサポ
ート58は、基板60のメンテナンス等のために外しやすい
係合爪58aの寸法形状となっており、係合爪58aの挿通
面58bもバリ面から挿通することに配慮されていない。
更に、基板60の重量は通常数百グラムであり、自重以外
の荷重がかかることもないので、ロッキングサポート58
は耐荷重、抜け強度等が十分に配慮されておらず、ま
た、取り付けた部品が回動することなど考慮していな
い。
However, such a locking support 58 has the size and shape of the engaging claw 58a which is easy to remove for maintenance of the substrate 60, and the insertion surface 58b of the engaging claw 58a is also inserted from the burr surface. Not considered.
Further, the weight of the substrate 60 is usually several hundred grams, and no load other than its own weight is applied.
Does not take into account sufficient load resistance, pull-out strength, and the like, and does not take into account, for example, the rotation of attached components.

【0017】よって、前述したようなロッキングサポー
ト58はフレームを構成する板金部材の、しかも、バリ面
から挿通するような使い方には適していない。
Therefore, the above-mentioned locking support 58 is not suitable for use of a sheet metal member constituting a frame, such as being inserted through a burr surface.

【0018】本発明は上記課題を解決するものであり、
その目的は、板金部品のバリ面から挿通可能で、且つ係
合部分がダレ面に対して抜けないようにした、ワンタッ
チで取り付け可能な支持部材を提供するものである。
The present invention solves the above problems,
An object of the present invention is to provide a support member which can be inserted by a burr surface of a sheet metal part and can be attached by one-touch so that an engagement portion does not come off from a sag surface.

【0019】[0019]

【課題を解決するための手段】上記目的を達成するため
の本発明に係る代表的な構成は、部品を支持するために
被取付部材に取り付けられる支持部材において、被取付
部材に形成した孔に挿入可能な径を有する支持軸部と、
前記支持軸部に元部において一体的であると共に、該元
部から先端部に向かって広がり形状の弾性変形可能な支
持腕部と、前記支持軸部と一体成形されたベースプレー
ト部と、を有し、前記支持腕部は元部の外面が前記支持
軸部の径の内側になるように構成され、且つ先端部が前
記被取付部材の孔径よりも外方へ広がっていると共に被
取付部材と当接可能な平面部を有することを特徴とす
る。
In order to achieve the above object, a typical configuration according to the present invention is a support member which is mounted on a member to be mounted for supporting a component, wherein a hole formed in the member to be mounted is provided. A support shaft having a diameter that can be inserted,
A support arm that is integral with the support shaft portion at the base portion and that extends from the base portion toward the distal end portion and that can be elastically deformed; and a base plate portion that is integrally formed with the support shaft portion. The support arm portion is configured such that the outer surface of the base portion is inside the diameter of the support shaft portion, and the distal end portion is wider than the hole diameter of the member to be mounted, and the mounting member and It is characterized in that it has a contactable flat part.

【0020】上記構成にあっては、支持腕部の元部の外
面が支持軸部の径よりも内側にあるために、被取付部材
としてバリを有する板金部材のバリ面から孔に挿通する
ことが可能であり、また弾性変形して前記孔に挿通され
た支持腕部の先端部は該孔径よりも外方へ広がり、且つ
平面部が被取付部材に可能であるために、ダレ面から抜
けることもなく、係合状態が維持される。
In the above configuration, since the outer surface of the base portion of the support arm portion is inside the diameter of the support shaft portion, the support arm portion is inserted into the hole from the burr surface of the sheet metal member having a burr as a member to be attached. In addition, the tip of the support arm portion elastically deformed and inserted into the hole spreads out beyond the diameter of the hole, and the flat portion is formed on the member to be attached, so that the tip comes off from the sagging surface. Without this, the engaged state is maintained.

【0021】[0021]

【発明の実施の形態】次に本発明の一実施形態に係る支
持部材について、図面を参照して具体的に説明する。
Next, a support member according to an embodiment of the present invention will be specifically described with reference to the drawings.

【0022】図1は本発明の実施形態に係るダボ支持部
材を用いた、画像形成装置の給紙ユニットの主フレーム
構成を示す。尚、(a) を上面図とすると、(b) は正面
図、(c) は右側面図である。
FIG. 1 shows a main frame configuration of a sheet feeding unit of an image forming apparatus using a dowel supporting member according to an embodiment of the present invention. Note that, if (a) is a top view, (b) is a front view, and (c) is a right side view.

【0023】図において、1はダボ支持部材、2は板金
のプレス加工によって成形された被取付部材である前フ
レーム、3はモールド品である後フレーム、4は紙ガイ
ド板であり板金によって構成されている。前記紙ガイド
板4は、手前側をダボ支持部材1を介して前フレーム2
に軸支され、奥側は後フレーム3から一体に形成された
軸3aに挿通されて取り付けられる。
In the figures, 1 is a dowel support member, 2 is a front frame which is an attached member formed by pressing a sheet metal, 3 is a rear frame which is a molded product, and 4 is a paper guide plate which is formed of a sheet metal. ing. The paper guide plate 4 has a front side provided with a front frame 2 through a dowel support member 1.
The rear side is inserted and attached to a shaft 3a integrally formed from the rear frame 3.

【0024】図2は図1のダボ支持部材1付近の拡大図
である。モールド品であるダボ支持部材1は、ベースプ
レート部1aから支持軸部1bが一体に形成され、更に
その先に回転軸部1cが一体に形成されている。
FIG. 2 is an enlarged view of the vicinity of the dowel support member 1 of FIG. The dowel support member 1 which is a molded product has a support shaft portion 1b formed integrally with a base plate portion 1a, and a rotary shaft portion 1c formed integrally therewith.

【0025】図3はダボ支持部材1の詳細説明図であ
り、(a) を上面図とすると、(b) は正面図、(c) は右側
面図、(d) は背面図、(e) は(b) のA−A断面図、であ
る。また、図4は図1(a) の拡大説明図、図5は図1
(b) の拡大説明図、図6は図1(c) の拡大説明図、図7
は図1(d) の拡大説明図、図8は図1(e) の拡大説明図
である。
FIG. 3 is a detailed explanatory view of the dowel support member 1, where (a) is a top view, (b) is a front view, (c) is a right side view, (d) is a rear view, and (e) () Is an AA cross-sectional view of (b). FIG. 4 is an enlarged explanatory view of FIG. 1 (a), and FIG.
FIG. 6 is an enlarged explanatory view of FIG. 1B, FIG. 6 is an enlarged explanatory view of FIG.
8 is an enlarged explanatory view of FIG. 1D, and FIG. 8 is an enlarged explanatory view of FIG.

【0026】支持軸部1bの対称位置には支持腕部1d
1 ,1d2 が形成され、それぞれの両脇にスリット1e
1 ,1e2 が形成されており、これによって支持腕部1
d1,1d2 は弾性変形可能となっている。
The support arm 1d is located at a symmetric position of the support shaft 1b.
1 and 1d2 are formed, and a slit 1e is provided on each side.
1 and 1e2 are formed, whereby the support arm 1 is formed.
d1 and 1d2 are elastically deformable.

【0027】前記支持腕部1d1 ,1d2 は、図8に示
すように、元部において支持軸部1bと一体的に設けら
れており、該元部から先端部に向かって(孔2aへの挿
入方向後方)広がり形状である。そして、前記元部の外
面は前記支持軸部1bの径の内側になるように構成さ
れ、且つ先端部が前記被取付部材である前フレーム2の
孔径よりも外方へ広がっている。
As shown in FIG. 8, the support arms 1d1 and 1d2 are provided integrally with the support shaft 1b at the base, and extend from the base toward the tip (insertion into the hole 2a). (Backward in the direction). The outer surface of the base portion is configured to be inside the diameter of the support shaft portion 1b, and the front end portion is wider than the hole diameter of the front frame 2 which is the attached member.

【0028】図9は、ダボ支持部材1を前フレームに取
り付けた状態を示す上面図、図10は同右側面図である。
FIG. 9 is a top view showing a state where the dowel supporting member 1 is attached to the front frame, and FIG. 10 is a right side view of the same.

【0029】支持軸部1bは、前フレーム2に設けられ
た孔2aに挿通される。支持軸部1bの先端周囲にはC
面1fが形成されており、孔2aの周囲に存在するバリ
2bに妨げられることなく、支持軸部1bは孔2aに挿
通される。回転軸部1cは、紙ガイド板4に設けられた
孔4aに挿通される。この回転軸部1cの先端周囲には
C面1gが形成されており、このため回転軸部1cは孔
2aにスムーズに挿通される。
The support shaft 1b is inserted through a hole 2a provided in the front frame 2. C around the tip of the support shaft 1b
The surface 1f is formed, and the support shaft 1b is inserted into the hole 2a without being hindered by the burr 2b existing around the hole 2a. The rotating shaft 1c is inserted through a hole 4a provided in the paper guide plate 4. A C-plane 1g is formed around the tip of the rotating shaft 1c, so that the rotating shaft 1c is smoothly inserted into the hole 2a.

【0030】また、前述したように、ダボ支持部材1で
は、前フレーム2のバリ面2cからの挿通を容易にする
ため、支持腕部1d1 ,1d2 の元部、即ち支持腕部1
d1,1d2 が孔2aに最初に入り込む部分は、外面を
支持軸部1bの径よりも小さく設定している。図7に示
すように、支持腕部1d1 ,1d2 の元部外面1h1,
1h2 は、支持軸部1bの径D1 よりも寸法aだけ内側
にある。
Further, as described above, in the dowel support member 1, in order to facilitate the insertion of the front frame 2 from the burr surface 2c, the base portions of the support arms 1d1 and 1d2, that is, the support arms 1
The outer surface of the portion where d1, 1d2 first enters the hole 2a is set smaller than the diameter of the support shaft portion 1b. As shown in FIG. 7, the outer surfaces 1h1, 1h1 of the bases of the support arms 1d1, 1d2
1h2 is inside the diameter D1 of the support shaft 1b by a dimension a.

【0031】従って、支持腕部1d1 ,1d2 の外面は
外側に広がっているからバリ2bに食い込もうとすると
ころを、まず最初に支持軸部1bが孔2aに入り込むこ
とで、スムーズな挿通のきっかけが与えられる。即ち、
支持腕部1d1 ,1d2 の外面がD1 の内側にある、図
9の寸法bの範囲では、スムーズに挿通される。前記寸
法bは、本実施形態では支持腕部1d1 ,1d2 の全長
cの約40%であり、スムーズな挿通のきっかけとしては
十分である。
Therefore, since the outer surfaces of the support arms 1d1 and 1d2 are widened outward, the support shaft 1b enters the hole 2a first, so that the support shaft 1b enters the hole 2a for smooth insertion. An opportunity is given. That is,
The support arms 1d1 and 1d2 are smoothly inserted in the range of the dimension b in FIG. 9 in which the outer surfaces of the support arms 1d1 and 1d2 are inside D1. In the present embodiment, the dimension b is about 40% of the total length c of the support arms 1d1 and 1d2, which is sufficient as a trigger for smooth insertion.

【0032】ここで、前記ダボ支持部材1の係合支持の
仕方を説明する。支持腕部1d1 ,1d2 の先端には、
係合斜面部1j1 ,1j2 が設けられている。孔2aの
ダレ面2dの周囲は、プレス加工の結果、丸見2eとな
っており、係合斜面部1j1,1j2 の寸法形状を締ま
りバメ気味に設定することで、支持腕部1d1 ,1d2
の弾性により、ダボ支持部材1は孔2aに係合支持され
る。実際、プレス金型の精度や摩耗により、丸見2eは
寸法形状が変わりうるから、締まりバメ気味に設定する
ことは有効である。
Here, a method of engaging and supporting the dowel support member 1 will be described. At the tips of the support arms 1d1 and 1d2,
The engagement slope portions 1j1 and 1j2 are provided. As a result of press working, the periphery of the sagging surface 2d of the hole 2a is rounded 2e, and by setting the dimensions and shapes of the engaging slopes 1j1 and 1j2 to be slightly shrunk, the support arms 1d1 and 1d2 are formed.
The dowel support member 1 is engaged and supported by the hole 2a due to the elasticity of the dowel. Actually, the size and shape of the round saw 2e can change due to the accuracy and wear of the press die, so that it is effective to set the round saw 2e to be slightly shrunk.

【0033】また、ベースプレート部1aはバリ面2c
から寸法dの隙間をあけて取り付けられる。そのため
に、ベースプレート部1aの円周方向に等間隔に4つの
突起1kがバリ2bの高さよりも高い寸法dの高さで形
成され、ダボ支持部材1は突起1kと係合斜面部1j1
,1j2 により挟持される。この突起1kによってベ
ースプレート部1aがバリ面2cから浮くことになり、
バリ逃げとなっている。尚、ここでも突起1kと係合斜
面部1j1 ,1j2 の間隔寸法を締まりバメ気味に設定
することで、支持腕部1d1 ,1d2 の弾性とベースプ
レート部1aの弾性とにより、ダボ支持部材1は孔2a
に係合支持される。
The base plate portion 1a has a burr surface 2c.
Is attached with a gap of dimension d from. For this purpose, four projections 1k are formed at equal intervals in the circumferential direction of the base plate portion 1a with a height of a dimension d higher than the height of the burr 2b, and the dowel support member 1 is formed with the projection 1k and the engaging slope portion 1j1.
, 1j2. The projection 1k causes the base plate portion 1a to float from the burr surface 2c,
Burr escape. In this case as well, by setting the distance between the projection 1k and the engaging slopes 1j1 and 1j2 to be slightly tightened, the dowel support member 1 is formed by the elasticity of the support arms 1d1 and 1d2 and the elasticity of the base plate 1a. 2a
Is engaged and supported.

【0034】係合斜面部1j1 ,1j2 の外側には、係
止平面部1i1 ,1i2 が連続して設けられている。こ
れは、ダボ支持部材1に抜け方向の力が加わった場合、
係合斜面部1j1 ,1j2 が丸見2eに当接しているか
ら、支持腕部1d1 ,1d2は内側に撓められ、係合が
外れる方向に向かう。このとき係止平面部1i1 ,1i
2 が丸見2eの外側の平面2fに当接し、ダボ支持部材
1が孔2aから抜けることなく、係合支持状態が保たれ
る。このため、係止平面部1i1 ,1i2 のスラスト方
向(支持部材1の挿入方向と直角方向)の寸法eが重要
となってくる。
Outside the engaging slopes 1j1 and 1j2, locking flats 1i1 and 1i2 are provided continuously. This is because when a force in the pull-out direction is applied to the dowel support member 1,
Since the engagement slopes 1j1 and 1j2 are in contact with the rounding 2e, the support arms 1d1 and 1d2 are bent inward and move in the direction in which the engagement is released. At this time, the locking flat portions 1i1 and 1i
2 comes into contact with a flat surface 2f outside the round view 2e, so that the dowel support member 1 does not fall out of the hole 2a, and the engaged and supported state is maintained. For this reason, the dimension e in the thrust direction (the direction perpendicular to the direction in which the support member 1 is inserted) of the locking flat portions 1i1 and 1i2 becomes important.

【0035】ダボ支持部材1は、係止平面部1i1 ,1
i2 の外面形状を、径D1 よりも大きい円弧か、或いは
直線に設定する。尚、本実施形態では図5に示すよう
に、係止平面部1i1 ,1i2 の外面1m1 ,1m2
は、径D1 よりも大きい円弧である。例えば、径D1 は
半径R=4mm である場合、外面1m1 ,1m2 はR=4.
7mm に設定することができる。また、図5に細線で示す
ように、外面1m1 ,1m2 を直線に設定してもよい。
The dowel support member 1 includes locking flat portions 1i1, 1
The outer surface shape of i2 is set to an arc larger than the diameter D1 or a straight line. In this embodiment, as shown in FIG. 5, the outer surfaces 1m1 and 1m2 of the locking flat portions 1i1 and 1i2, respectively.
Is an arc larger than the diameter D1. For example, if the diameter D1 is a radius R = 4 mm, the outer surfaces 1m1 and 1m2 are R = 4.
Can be set to 7mm. Alternatively, the outer surfaces 1m1 and 1m2 may be set as straight lines as shown by thin lines in FIG.

【0036】このように形成された支持腕部1d1 ,1
d2 が、撓められて孔2aに挿通される過程では、支持
腕部1d1 ,1d2 の外面の稜線1n1 ,1n2 の、径
D1上の位置、即ち寸法bの位置1p1 ,1p2 から、
稜線1n1 ,1n2 の終端の位置1q1 ,1q2 の範囲
で、バリ2bによって稜線1n1 ,1n2 が削られる。
この削られる領域は、図10の斜線で示す範囲である。削
られるスラスト方向の量は、外面1m1 ,1m2 から径
D1 までの部分であり、その領域を図11に斜線で示す。
尚、図11では、わかりやすいように、外面1m1 を直線
で表示してある。
The thus formed supporting arms 1d1, 1d
In the process in which d2 is bent and inserted into the hole 2a, from the position on the diameter D1 of the ridge lines 1n1 and 1n2 of the outer surfaces of the support arms 1d1 and 1d2, that is, from the positions 1p1 and 1p2 of the dimension b,
The burr 2b cuts the ridge lines 1n1 and 1n2 within the range of the end positions 1q1 and 1q2 of the ridge lines 1n1 and 1n2.
The area to be cut is a range shown by oblique lines in FIG. The amount of cutting in the thrust direction is a portion from the outer surface 1m1, 1m2 to the diameter D1, and the area is shown by hatching in FIG.
In FIG. 11, the outer surface 1m1 is represented by a straight line for easy understanding.

【0037】上記のようにダボ支持部材を構成すること
により、ダボ支持部材1を孔2aのバリ面2cから挿通
すると、支持腕部1d1 ,1d2 の稜線1n1 ,1n2
から削られ、係止平面部1i1 ,1i2 の外面中央1r
1 ,1r2 では、係合支持に必要な寸法eがほぼ保た
れ、ダボ支持部材1が孔2aから抜けることなく係合支
持状態が確実に維持することができる。
By configuring the dowel support member as described above, when the dowel support member 1 is inserted through the burr surface 2c of the hole 2a, the ridge lines 1n1, 1n2 of the support arm portions 1d1, 1d2.
And the center 1r of the outer surface of the locking flat portions 1i1 and 1i2.
In 1 and 1r2, the dimension e required for the engagement support is substantially maintained, and the engagement support state can be reliably maintained without the dowel support member 1 falling out of the hole 2a.

【0038】更に本実施形態の支持部材1にあっては、
支持腕部1d1 ,1d2 の内側は延設され、ツマミ部1
s1 ,1s2 が形成されている。これにより、ダボ支持
部材1を前フレーム2から外す場合、ツマミ部1s1 ,
1s2 を摘んで撓ませ、簡単に抜き取ることができる。
ツマミ部1s1 ,1s2 のベースプレート部1aからの
突出量はごく小さくて足りるため、スペース効率を犠牲
するものでない。
Further, in the support member 1 of the present embodiment,
The support arms 1d1 and 1d2 extend inside, and the knob 1
s1 and 1s2 are formed. Thus, when the dowel support member 1 is detached from the front frame 2, the knobs 1s1,
1s2 can be pinched and bent to be easily extracted.
Since the protrusions of the knobs 1s1 and 1s2 from the base plate 1a are very small, space efficiency is not sacrificed.

【0039】また、ベースプレート部1aには、図5に
示すように、円形状の一部を切り欠いたDカット部1t
が設けられ、これによって回転止め部が設けられてい
る。このため、ダボ支持部材1を設定方向に位置決めし
て取り付けることが容易になし得る。例えば、図1に示
す本実施形態の給紙ユニットでは、同一のダボ支持部材
1′,1″が取り付けられており、前フレーム2には曲
げ部2gが形成されている。ダボ支持部材1′のDカッ
ト部1tが曲げ部2gに当接し、ダボ支持部材1′が回
転しないようになっている。尚、回転止め部の構成とし
ては、前記曲げ部2gの代わりに、突き出しによるエン
ボス等であっても同様の効果を得ることができる。
As shown in FIG. 5, the base plate portion 1a has a D-cut portion 1t in which a circular part is cut out.
Is provided, and thereby a rotation stopper is provided. Therefore, the dowel support member 1 can be easily positioned and mounted in the set direction. For example, in the paper feeding unit of the present embodiment shown in Fig. 1, the same dowel supporting members 1 'and 1 "are attached, and the front frame 2 is formed with a bent portion 2g. The D-cut portion 1t abuts against the bent portion 2g, so that the dowel support member 1 'does not rotate.Instead of the bent portion 2g, the rotation stop portion is formed by embossing by protrusion or the like. Even if there is, the same effect can be obtained.

【0040】尚、前述した実施形態ではダボ支持部材1
を画像形成装置の給紙ユニットの前フレーム2に取り付
けて紙ガイド板4を支持する例を示したが、この支持部
材1は画像形成装置の給紙ユニットのみならず、他の部
材相互を連結する場合に用いることも当然可能である。
In the above-described embodiment, the dowel support member 1 is used.
Is mounted on the front frame 2 of the paper feeding unit of the image forming apparatus to support the paper guide plate 4, but this support member 1 connects not only the paper feeding unit of the image forming apparatus but also other members. Of course, it is also possible to use it.

【0041】[0041]

【発明の効果】本発明は前述のように支持腕部の元部の
外面が支持軸部の径よりも内側にあるようにしたため
に、被取付部材としてバリを有する板金部材のバリ面か
ら孔に挿通することが可能であり、また弾性変形して前
記孔に挿通された支持腕部の先端部は該孔径よりも外方
へ広がり、且つ平面部が被取付部材に可能であるため
に、ダレ面から抜けることもなく、係合状態が維持され
るものである。
As described above, according to the present invention, since the outer surface of the base portion of the support arm portion is located inside the diameter of the support shaft portion, the hole is formed from the burr surface of the sheet metal member having the burr as a member to be mounted. Can be inserted, and the tip of the support arm portion that is elastically deformed and inserted into the hole extends outward from the diameter of the hole, and a flat portion can be attached to the member to be attached. The engagement state is maintained without falling off the sagging surface.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の一実施形態に係るダボ支持部材を用い
た、画像形成装置の給紙ユニットの主フレーム構成を示
し、(a) は上面図、(b) は正面図、(c) は右側面図であ
る。
FIG. 1 shows a main frame configuration of a sheet feeding unit of an image forming apparatus using a dowel supporting member according to an embodiment of the present invention, (a) is a top view, (b) is a front view, and (c) Is a right side view.

【図2】図1のダボ支持部材付近の拡大図である。FIG. 2 is an enlarged view of the vicinity of a dowel support member of FIG.

【図3】ダボ支持部材の詳細説明図であり、(a) は上面
図、、(b) は正面図、(c) は右側面図、(d) は背面図、
(e) は(b) のA−A断面図、である。
FIG. 3 is a detailed explanatory view of the dowel support member, (a) is a top view, (b) is a front view, (c) is a right side view, (d) is a rear view,
(e) is an AA sectional view of (b).

【図4】図1(a) の拡大説明図である。FIG. 4 is an enlarged explanatory view of FIG. 1 (a).

【図5】図1(b) の拡大説明図である。FIG. 5 is an enlarged explanatory view of FIG. 1 (b).

【図6】図1(c) の拡大説明図である。FIG. 6 is an enlarged explanatory view of FIG. 1 (c).

【図7】図1(d) の拡大説明図である。FIG. 7 is an enlarged explanatory view of FIG. 1 (d).

【図8】図1(e) の拡大説明図である。FIG. 8 is an enlarged explanatory view of FIG. 1 (e).

【図9】ダボ支持部材を前フレームに取り付けた状態を
示す上面図である。
FIG. 9 is a top view showing a state where the dowel support member is attached to the front frame.

【図10】ダボ支持部材を前フレームに取り付けた状態
を示す右側面図である。
FIG. 10 is a right side view showing a state where the dowel supporting member is attached to the front frame.

【図11】支持部材の挿入によって削られる領域の説明
図である。
FIG. 11 is an explanatory diagram of a region cut by inserting a support member.

【図12】従来のダボ支持部材を用いた画像形成装置の
給紙ユニットの主フレーム構成を示し、(a) は上面図、
(b) は正面図、(c) は右側面図である。
FIG. 12 shows a main frame configuration of a paper feed unit of an image forming apparatus using a conventional dowel support member, where (a) is a top view,
(b) is a front view, and (c) is a right side view.

【図13】図12のダボ支持部材付近の拡大説明図であ
る。
FIG. 13 is an enlarged explanatory view of the vicinity of a dowel support member of FIG. 12;

【図14】ダボ支持部材の詳細な形状説明図である。FIG. 14 is an explanatory diagram of a detailed shape of a dowel support member.

【図15】プレスパンチの概念説明図である。FIG. 15 is a conceptual explanatory view of a press punch.

【図16】従来のダボ支持部材を前フレームに取り付け
た状態を示す上面図である。
FIG. 16 is a top view showing a state where a conventional dowel support member is attached to a front frame.

【図17】従来のダボ支持部材を前フレームに取り付け
た状態を示す右側面図である。
FIG. 17 is a right side view showing a state where a conventional dowel support member is attached to a front frame.

【図18】ロッキングサポート部材の説明図である。FIG. 18 is an explanatory diagram of a locking support member.

【符号の説明】[Explanation of symbols]

1 …ダボ支持部材 1a …ベースプレート部 1b …支持軸部 1c …回転軸部 1d1 ,1d2 …支持腕部 1e1 ,1e2 …スリット 1f …C面 1g …C面 1h1 ,1h2 …元部外面 1i1 ,1i2 …係止平面部 1j1 ,1j2 …係合斜面部 1k …突起 1m1 ,1m2 …外面 1n1 ,1n2 …稜線 1p1 ,1p2 …位置 1q1 ,1q2 …位置 1r1 ,1r2 …外面中央 1s1 ,1s2 …ツマミ部 1t …Dカット部 2 …前フレーム 2a …孔 2b …バリ 2c …バリ面 2d …ダレ面 2e …丸見 2g …曲げ部 3 …後フレーム 3a …軸 4 …紙ガイド板 4a …孔 DESCRIPTION OF SYMBOLS 1 ... Dowel support member 1a ... Base plate part 1b ... Support shaft part 1c ... Rotation shaft part 1d1, 1d2 ... Support arm part 1e1, 1e2 ... Slit 1f ... C surface 1g ... C surface 1h1, 1h2 ... Original part outer surface 1i1, 1i2 Locking flat surface portion 1j1, 1j2 ... engaging slope portion 1k ... projection 1m1, 1m2 ... outer surface 1n1, 1n2 ... ridge line 1p1, 1p2 ... position 1q1, 1q2 ... position 1r1, 1r2 ... outer surface 1s1. Cut part 2 ... front frame 2a ... hole 2b ... burr 2c ... burr surface 2d ... sagging surface 2e ... round view 2g ... bending part 3 ... rear frame 3a ... shaft 4 ... paper guide plate 4a ... hole

Claims (7)

【特許請求の範囲】[Claims] 【請求項1】 部品を支持するために被取付部材に取り
付けられる支持部材において、 被取付部材に形成した孔に挿入可能な径を有する支持軸
部と、 前記支持軸部に元部において一体的であると共に、該元
部から先端部に向かって広がり形状の弾性変形可能な支
持腕部と、 前記支持軸部と一体成形されたベースプレート部と、 を有し、 前記支持腕部は元部の外面が前記支持軸部の径の内側に
なるように構成され、且つ先端部が前記被取付部材の孔
径よりも外方へ広がっていると共に被取付部材と当接可
能な平面部を有することを特徴とする支持部材。
1. A support member attached to a member to be mounted for supporting a component, wherein the support shaft has a diameter insertable into a hole formed in the member to be mounted, and a base part integral with the support shaft. And an elastically deformable support arm having a shape that expands from the base toward the tip, and a base plate formed integrally with the support shaft. The outer surface is configured to be inside the diameter of the support shaft portion, and the tip portion has a flat portion that is wider than the hole diameter of the attached member and can contact the attached member. A support member characterized by the following.
【請求項2】 前記平面部の外面形状は、前記支持軸部
の径よりも大きい円弧状又は直線状であることを特徴と
する請求項1記載の支持部材。
2. The support member according to claim 1, wherein the outer surface of the flat portion has an arc shape or a linear shape larger than a diameter of the support shaft portion.
【請求項3】 前記支持腕部の先端部に、該支持腕部の
広がり方向と逆方向の傾斜を有する斜面部を有すること
を特徴とする請求項1記載の支持部材。
3. The support member according to claim 1, wherein a tip portion of the support arm has a slope having a slope in a direction opposite to a direction in which the support arm expands.
【請求項4】 前記ベースプレート部に突起を設け、該
突起と前記支持腕部の先端部とによって前記被取付部材
を挟持可能に構成したことを特徴とする請求項1記載の
支持部材。
4. The support member according to claim 1, wherein a projection is provided on the base plate portion, and the mounted member can be sandwiched between the projection and a tip portion of the support arm portion.
【請求項5】 前記突起の高さは、被取付部材の孔の周
囲にあるバリの高さ以上であることを特徴とする請求項
4記載の支持部材。
5. The support member according to claim 4, wherein the height of the projection is equal to or greater than the height of a burr around the hole of the member to be mounted.
【請求項6】 前記支持腕部の先端部は、前記ベースプ
レート部よりも外方へ延設されたツマミ部を有すること
を特徴とする請求項1記載の支持部材。
6. The support member according to claim 1, wherein a tip portion of the support arm portion has a knob portion extending outward from the base plate portion.
【請求項7】 前記ベースプレート部は、回転止め部を
有することを特徴とする請求項1記載の支持部材。
7. The support member according to claim 1, wherein the base plate portion has a rotation stopping portion.
JP9069316A 1997-03-24 1997-03-24 Supporting member Pending JPH10268600A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9069316A JPH10268600A (en) 1997-03-24 1997-03-24 Supporting member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9069316A JPH10268600A (en) 1997-03-24 1997-03-24 Supporting member

Publications (1)

Publication Number Publication Date
JPH10268600A true JPH10268600A (en) 1998-10-09

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ID=13399040

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9069316A Pending JPH10268600A (en) 1997-03-24 1997-03-24 Supporting member

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Cited By (3)

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JP2011150269A (en) * 2009-12-25 2011-08-04 Brother Industries Ltd Developing device
US8737889B2 (en) 2009-12-25 2014-05-27 Brother Kogyo Kabushiki Kaisha Developing device and image forming apparatus
JP2016090870A (en) * 2014-11-07 2016-05-23 京セラドキュメントソリューションズ株式会社 Support structure of image scanning unit and image forming apparatus

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011150269A (en) * 2009-12-25 2011-08-04 Brother Industries Ltd Developing device
US8712296B2 (en) 2009-12-25 2014-04-29 Brother Kogyo Kabushiki Kaisha Developing device
US8737889B2 (en) 2009-12-25 2014-05-27 Brother Kogyo Kabushiki Kaisha Developing device and image forming apparatus
US20140241761A1 (en) 2009-12-25 2014-08-28 Brother Kogyo Kabushiki Kaisha Developing device and image forming apparatus
US9116461B2 (en) 2009-12-25 2015-08-25 Brother Kogyo Kabushiki Kaisha Developing device
US9316940B2 (en) 2009-12-25 2016-04-19 Brother Kogyo Kabushiki Kaisha Developing device and image forming apparatus
US9563147B2 (en) 2009-12-25 2017-02-07 Brother Kogyo Kabushiki Kaisha Developing device and image forming apparatus
US9989890B2 (en) 2009-12-25 2018-06-05 Brother Kogyo Kabushiki Kaisha Developing device and image forming apparatus
JP2016090870A (en) * 2014-11-07 2016-05-23 京セラドキュメントソリューションズ株式会社 Support structure of image scanning unit and image forming apparatus

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