JPH0481868U - - Google Patents
Info
- Publication number
- JPH0481868U JPH0481868U JP12535990U JP12535990U JPH0481868U JP H0481868 U JPH0481868 U JP H0481868U JP 12535990 U JP12535990 U JP 12535990U JP 12535990 U JP12535990 U JP 12535990U JP H0481868 U JPH0481868 U JP H0481868U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- booster
- negative pressure
- inner peripheral
- bosses
- 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.)
- Granted
Links
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 239000011324 bead Substances 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims 1
Landscapes
- Braking Systems And Boosters (AREA)
Description
第1図および第2図は本考案の一実施例を示す
ものであり、第1図はタンデム型負圧ブースタの
縦断側面図、第2図は第1図の−線断面図、
第3図は本考案の他の実施例のタンデム型負圧ブ
ースタの縦断側面図である。
1……ブースタシエル、1c……隔壁板、2…
…前部シエル室、3……後部シエル室、4……前
部ブースタピストン、5……前部ダイヤフラム、
6……後部ブースタピストン、7……後部ダイヤ
フラム、7a……内周ビード、8,8′……ピス
トンボス、12,12′……連結筒、12a,1
2a′……前部係合部、12b,12b′……後
部係合部、14……シール部材、17……ストツ
パ、47……出力杆、B……タンデム型負圧ブー
スタ。
1 and 2 show an embodiment of the present invention, in which FIG. 1 is a longitudinal sectional side view of a tandem negative pressure booster, FIG. 2 is a sectional view taken along the line -- in FIG.
FIG. 3 is a longitudinal sectional side view of a tandem negative pressure booster according to another embodiment of the present invention. 1... Booster shell, 1c... Partition plate, 2...
...Front shell chamber, 3...Rear shell chamber, 4...Front booster piston, 5...Front diaphragm,
6... Rear booster piston, 7... Rear diaphragm, 7a... Inner peripheral bead, 8, 8'... Piston boss, 12, 12'... Connection cylinder, 12a, 1
2a'... Front engaging portion, 12b, 12b'... Rear engaging portion, 14... Seal member, 17... Stopper, 47... Output rod, B... Tandem type negative pressure booster.
Claims (1)
2と後部シエル室3とに仕切る隔壁板1cが設け
られ、前部ダイヤフラム5を後面に重合結着させ
た前部ブースタピストン4と、後部ダイヤフラム
7を後面に重合結着させた後部ブースタピストン
4とが、前記隔壁板1cに摺動自在に支承されて
出力杆47に連なるピストンボス8,8′を介し
て連結されるタンデム型負圧ブースタにおいて、
ピストンボス8,8′に前方側から係合する前部
係合部12a,12a′とピストンボス8,8′
に後方側から係合すべく折り曲げ可能な複数の後
部係合部12b,12b′とを有して後方側に延
びる円筒状の連結筒12,12′が前部ブースタ
ピストン4の中央部に連設され、後部ブースタピ
ストン6の内周縁を包む後部ダイヤフラム7の内
周ビード7aが、前記後部係合部12b,12b
′を介在させてピストンボス8,8′に後方から
当接され、ピストンボス8,8′には前記内周ビ
ード7aを前方側に弾発するストツパ17が係合
され、隔壁板1cの内周縁部と連結筒12,12
′の外面との間にはシール部材14が介設される
ことを特徴とするタンデム型負圧ブースタ。 The booster shell 1 is provided with a partition plate 1c that partitions the inside thereof into a front shell chamber 2 and a rear shell chamber 3, and includes a front booster piston 4 with a front diaphragm 5 superimposed on the rear surface thereof, and a rear diaphragm 7. In a tandem type negative pressure booster, a rear booster piston 4 having a rear booster piston 4 which is superimposed and bonded to the rear surface is slidably supported on the partition wall plate 1c and connected via piston bosses 8 and 8' connected to the output rod 47. ,
Front engaging portions 12a, 12a' that engage with the piston bosses 8, 8' from the front side and piston bosses 8, 8'
A cylindrical connecting cylinder 12, 12' extending rearward and having a plurality of rear engaging portions 12b, 12b' that can be bent to engage from the rear side is connected to the center part of the front booster piston 4. The inner peripheral bead 7a of the rear diaphragm 7 which is provided and wraps around the inner peripheral edge of the rear booster piston 6 is connected to the rear engaging portions 12b, 12b.
A stopper 17 is engaged with the piston bosses 8, 8' from behind with the inner peripheral bead 7a interposed therebetween, and a stopper 17 is engaged with the piston bosses 8, 8' to spring the inner peripheral bead 7a forward. section and connecting tubes 12, 12
A tandem negative pressure booster characterized in that a sealing member 14 is interposed between the outer surface of the tandem negative pressure booster and the outer surface of the tandem negative pressure booster.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12535990U JP2519244Y2 (en) | 1990-11-28 | 1990-11-28 | Tandem negative pressure booster |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12535990U JP2519244Y2 (en) | 1990-11-28 | 1990-11-28 | Tandem negative pressure booster |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0481868U true JPH0481868U (en) | 1992-07-16 |
JP2519244Y2 JP2519244Y2 (en) | 1996-12-04 |
Family
ID=31872960
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12535990U Expired - Lifetime JP2519244Y2 (en) | 1990-11-28 | 1990-11-28 | Tandem negative pressure booster |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2519244Y2 (en) |
-
1990
- 1990-11-28 JP JP12535990U patent/JP2519244Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2519244Y2 (en) | 1996-12-04 |