JPH0393271U

JPH0393271U -

Info

Publication number: JPH0393271U
Application number: JP246890U
Authority: JP
Priority date: 1990-01-16
Filing date: 1990-01-16
Publication date: 1991-09-24

Description

[Brief explanation of drawings]

第１図ないし第３図は本考案の第１実施例を示
すもので、第１図は負圧ブースタの縦断側面図、
第２図は第１図の部拡大図、第３図は前部シエ
ル半体への連結ボルト及び補強板のプロジエクシ
ヨン溶接時の説明図、第４図及び第５図は本考案
の第２実施例を示すもので、第２図及び第３図と
同様の図面である。１……ブースタシエル、３０……補強板、３３
……連結ボルト、３５……頭部、３６……軸部、
３７……凹部、３８……第１溶接部、３９……第
２溶接部。 1 to 3 show a first embodiment of the present invention, in which FIG. 1 is a vertical side view of a negative pressure booster;
Figure 2 is an enlarged view of Figure 1, Figure 3 is an explanatory diagram of the projection welding of the connecting bolt and reinforcing plate to the front shell half, and Figures 4 and 5 are the parts of the present invention. This figure shows two embodiments and is similar to FIGS. 2 and 3. 1... Booster shell, 30... Reinforcement plate, 33
... Connection bolt, 35 ... Head, 36 ... Shaft,
37... recessed part, 38... first welded part, 39... second welded part.

Claims

[Claims for Utility Model Registration] The head 35 of the connecting bolt 33, whose shaft portion 36 passes through the end wall of the booster shell 1, is attached to the inner surface of the end wall of the booster shell 1 through an annular welded portion 38 surrounding the shaft portion 36. In a negative pressure booster in which a reinforcing plate 30 is further bonded to the inner surface of the end wall, the head 35 of the connecting bolt 33 is attached to the reinforcing plate 30.
A recess 37 is formed to receive the annular welded portion 3.
A negative pressure booster characterized in that a reinforcing plate 30 is joined to the inner surface of the end wall of the booster shell 1 via a second annular welded portion 39 surrounding the booster shell 1.