JPH0114065Y2 - - Google Patents
Info
- Publication number
- JPH0114065Y2 JPH0114065Y2 JP1981005740U JP574081U JPH0114065Y2 JP H0114065 Y2 JPH0114065 Y2 JP H0114065Y2 JP 1981005740 U JP1981005740 U JP 1981005740U JP 574081 U JP574081 U JP 574081U JP H0114065 Y2 JPH0114065 Y2 JP H0114065Y2
- Authority
- JP
- Japan
- Prior art keywords
- sheet metal
- cover member
- molded cover
- metal member
- boss
- 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.)
- Expired
Links
- 239000002184 metal Substances 0.000 claims description 20
- 238000010079 rubber tapping Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Push-Button Switches (AREA)
- Electrophonic Musical Instruments (AREA)
Description
【考案の詳細な説明】
本考案は板金部材にモールド成型カバー部材を
かぶせて成る電子オルガン等の足鍵盤に関する。[Detailed Description of the Invention] The present invention relates to a foot keyboard for an electronic organ or the like, which is formed by covering a sheet metal member with a molded cover member.
従来、この種の足鍵盤として、断面コ字状に形
成され、その底板部a1に内方膨出部a2,a2が形成
された板金部材aに、一端が閉塞された断面コ字
状の合成樹脂等から成るモールド成型カバー部材
bを第1図及び第2図に示すようにかぶせ、該板
金部材aの内方膨出部a2,a2に設けた孔a3,a3か
らモールド成型カバー部材bの内方突起部b1の孔
b2へタツピングネジcをねじ込んで締付け、必要
とする締付け強度を得るようにしたものが知られ
ている。 Conventionally, this type of foot keyboard has a sheet metal member a which is formed into a U-shape in cross-section and has inwardly bulging parts a2 and a2 formed on its bottom plate part a1 , and a C-shaped cross-section in which one end is closed. A molded cover member b made of a synthetic resin or the like is covered as shown in FIGS . Hole of inward protrusion b 1 of molded cover member b
It is known that a tapping screw c is screwed into b2 and tightened to obtain the required tightening strength.
しかし、これは、組立作業中作業者がタツピン
グネジcを締付けすぎて内方突起部b1の孔b2のネ
ジ山がつぶれたり、また組立作業の能率上モール
ド成型カバー部材bを下側にするためどうしても
傷つきやすい欠点があるとともにタツピングネジ
を必要とするため部品代が高く、また組立工数も
多いという欠点があつた。 However, this may result in the worker tightening the tapping screw c too much during the assembly process, causing the screw threads of the hole b 2 of the inward protrusion part b 1 to be crushed, or for the efficiency of the assembly process, the molded cover member b may be placed on the lower side. Therefore, it has the disadvantage that it is easily damaged, and requires tapping screws, which increases the cost of parts and requires a large number of assembly steps.
本考案は従来のもののかかる欠点を排除するこ
とをその目的とするもので、板金部材1にモール
ド成型カバー部材2をかぶせて成る式のものにお
いて、該板金部材1は孔3の周縁に、バーリング
加工により形成された内壁4に突条5のある環状
突起部6を有し、前記モールド成型カバー部材2
はその内面7にスリツト8により分割された一体
成型のボス9を有し、板金部材1にモールド成型
カバー部材2をかぶせて成る式のものにおいて、
該板金部材1は孔3の周縁に、バーリング加工に
より形成された内壁4に突条5のある環状突起部
6を有し、前記モールド成型カバー部材2はその
内面7にスリツト8により分割された一体成型の
ボス9を有し、該ボス9を前記板金部材1の孔3
に嵌合し、該ボス9に前記突条5を喰い込ませて
前記モールド成型カバー部材2と前記板金部材1
とを結着して成る。 The purpose of the present invention is to eliminate such drawbacks of the conventional one, and in a type of one in which a molded cover member 2 is placed over a sheet metal member 1, the sheet metal member 1 has a bar ring on the periphery of the hole 3. The molded cover member 2 has an annular protrusion 6 with a protrusion 5 on the inner wall 4 formed by processing.
has integrally molded bosses 9 divided by slits 8 on its inner surface 7, and is formed by covering a sheet metal member 1 with a molded cover member 2,
The sheet metal member 1 has an annular protrusion 6 on the periphery of the hole 3 with a protrusion 5 on the inner wall 4 formed by burring, and the molded cover member 2 has an inner surface 7 divided by slits 8. It has an integrally molded boss 9, and the boss 9 is inserted into the hole 3 of the sheet metal member 1.
The molded cover member 2 and the sheet metal member 1 are fitted into the molded cover member 2 and the sheet metal member 1 by inserting the protrusion 5 into the boss 9.
It is made up of the following.
第3図及び第4図示の該環状突起部6の内壁4
の突条5は、プレス用金型の雄側に凹部を形成す
ることによりバーリング加工時に環状突起部6の
形成と同時と形成される。この突条5は任意個数
設けることができ、また環状突起部6は円形のみ
でなく、6角形でも3角形等でもよい。モールド
成型カバー部材2の内面7に設けたボス9は第5
図示のように板金部材1の孔3に嵌入し易くする
ためにその端部を錐台形に形成する。また前記ス
リツト8の入つたボス9の径はスリツト8による
内側への変形、環状突起部6の突条5等の関係か
ら適正な値に選定する。かくして、断面コ字状に
成形された板金部材1を第6図示と逆にして基台
上に置き、この上からボス9を孔3に嵌合させて
モールド成型カバー部材2をかぶせる。該嵌合の
際、ボス9の周壁には環状突起部6の突条5及び
内壁部が食い込むので、板金部材1及びモールド
成型カバー部材2を密着させた状態で両者を確実
に結着させることができる。 Inner wall 4 of the annular protrusion 6 shown in FIGS. 3 and 4
The protrusion 5 is formed at the same time as the annular protrusion 6 during burring by forming a recess on the male side of the press die. Any number of protrusions 5 can be provided, and the annular protrusion 6 may not only be circular but also hexagonal, triangular, or the like. The boss 9 provided on the inner surface 7 of the molded cover member 2 is the fifth boss 9.
As shown in the figure, the end thereof is formed into a truncated cone shape to facilitate fitting into the hole 3 of the sheet metal member 1. Further, the diameter of the boss 9 having the slit 8 is selected to be an appropriate value in consideration of the inward deformation caused by the slit 8, the protrusion 5 of the annular protrusion 6, etc. The sheet metal member 1 formed into a U-shaped cross section is thus placed on a base in the opposite direction to that shown in FIG. 6, and the boss 9 is fitted into the hole 3 from above, and the molded cover member 2 is covered. During the fitting, the protrusion 5 and the inner wall of the annular protrusion 6 bite into the peripheral wall of the boss 9, so that the sheet metal member 1 and the molded cover member 2 are securely connected in a state in which they are in close contact with each other. I can do it.
このように本考案によるときは、モールド成型
カバー部材のボスを板金部材の孔に嵌合し、該ボ
スに該孔の周縁にバーリング加工により成形した
環状突起部の突条を食い込ませることによつてモ
ールド成型カバー部材と板金部材とをネジを用い
ることなく確実に結着することができ、取付工数
が少なくなるとともに部品代が安くてすみ、また
モールド成型カバー部材は作業中に傷がつきにく
いという効果がある。 In this way, according to the present invention, the boss of the molded cover member is fitted into the hole of the sheet metal member, and the protrusion of the annular protrusion formed by burring on the periphery of the hole is bitten into the boss. The molded cover member and the sheet metal member can be securely connected without using screws, reducing the number of installation steps and the cost of parts, and the molded cover member is less likely to be damaged during work. There is an effect.
第1図及び第2図は従来の足鍵盤の分解斜視図
及び中心線に沿つた一部截断面図、第3図乃至第
6図は本考案の一実施例を示し、第3図は板金部
材の平面図、第4図は第3図の−線に沿つた
一部截断面図、第5図はモールド成型カバー部材
の側板を一部截除した側面図、第6図は中心線に
沿つた一部截断面図である。
1……板金部材、2……モールド成型カバー部
材、3……孔、4……内壁、5……突条、6……
環状突起部、7……内面、8……スリツト、9…
…ボス。
Figures 1 and 2 are exploded perspective views and partially cutaway views along the center line of a conventional foot keyboard, Figures 3 to 6 show an embodiment of the present invention, and Figure 3 is a sheet metal keyboard. A plan view of the member, FIG. 4 is a partially cutaway sectional view taken along the - line in FIG. 3, FIG. 5 is a side view with the side plate of the molded cover member partially cut away, and FIG. FIG. DESCRIPTION OF SYMBOLS 1... Sheet metal member, 2... Molded cover member, 3... Hole, 4... Inner wall, 5... Projection, 6...
Annular protrusion, 7...Inner surface, 8...Slit, 9...
…boss.
Claims (1)
せて成る式のものにおいて、該板金部材1は孔3
の周縁に、バーリング加工により形成された内壁
4に突条5のある環状突起部6を有し、前記モー
ルド成型カバー部材2はその内面7にスリツト8
により分割された一体成型のボス9を有し、該ボ
ス9を前記板金部材1の孔3に嵌合し、該ボス9
に前記突条5を喰い込ませて前記モールド成型カ
バー部材2と前記板金部材1とを結着して成る電
子楽器用足鍵盤。 In a type in which a molded cover member 2 is placed over a sheet metal member 1, the sheet metal member 1 has a hole 3.
The molded cover member 2 has an annular protrusion 6 with a protrusion 5 on the inner wall 4 formed by burring, and the molded cover member 2 has a slit 8 on the inner surface 7.
The boss 9 is fitted into the hole 3 of the sheet metal member 1, and the boss 9 is divided into two parts.
A foot keyboard for an electronic musical instrument, in which the molded cover member 2 and the sheet metal member 1 are connected by inserting the protrusions 5 into them.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1981005740U JPH0114065Y2 (en) | 1981-01-21 | 1981-01-21 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1981005740U JPH0114065Y2 (en) | 1981-01-21 | 1981-01-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57121991U JPS57121991U (en) | 1982-07-29 |
JPH0114065Y2 true JPH0114065Y2 (en) | 1989-04-25 |
Family
ID=29804096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1981005740U Expired JPH0114065Y2 (en) | 1981-01-21 | 1981-01-21 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0114065Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101689360B (en) * | 2006-12-15 | 2013-10-30 | 空行吉他有限公司 | Foldable guitar |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4532281Y1 (en) * | 1967-09-14 | 1970-12-10 | ||
JPS4946680U (en) * | 1972-07-31 | 1974-04-24 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5599575U (en) * | 1978-12-29 | 1980-07-10 |
-
1981
- 1981-01-21 JP JP1981005740U patent/JPH0114065Y2/ja not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4532281Y1 (en) * | 1967-09-14 | 1970-12-10 | ||
JPS4946680U (en) * | 1972-07-31 | 1974-04-24 |
Also Published As
Publication number | Publication date |
---|---|
JPS57121991U (en) | 1982-07-29 |
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