JPS61141198U

JPS61141198U -

Info

Publication number: JPS61141198U
Application number: JP2503185U
Authority: JP
Priority date: 1985-02-23
Filing date: 1985-02-23
Publication date: 1986-09-01

Description

[Brief explanation of the drawing]

第１図は本考案を水ジエツト推進式滑走艇に取
付けた状態の側断面図、第２図は第１図の２―２
線断面図、第３〜５図はそのポンプケースカバー
を抽出して示す側面図、平面図並びに底面図、第
６〜９図は第４図の６―６線、７―７線、８―８
線並びに９―９線に沿う各拡大断面図、第１０図
は第５図に対応する変形例の底面図、第１１図は
第１０図の１１―１１線に沿う拡大断面図である
。Ａ……船体、Ｂ……ポンプケースカバー、Ｃ…
…長手中心線、Ｄ……オーバーラツプの長さ寸法
、Ｈ１，Ｈ２……フインの突出高さ寸法、Ｌ１，
Ｌ２……フインの長さ寸法、Ｗ１，Ｗ２……フイ
ンの左右相互間隔寸法、１０……船体、１４……
ポンプケースカバー、１８……橇板、１９……翼
片、２６Ｌ，２６Ｒ……インナーフイン、２７Ｌ
，２７Ｒ……アウターフイン、２８，２９……前
端部、３０，３１……後端部。 Figure 1 is a side cross-sectional view of the present invention installed on a water jet propulsion type watercraft, and Figure 2 is 2-2 in Figure 1.
Line sectional views, Figures 3 to 5 are side views, top views, and bottom views showing the pump case cover, and Figures 6 to 9 are lines 6-6, 7-7, and 8- of Figure 4. 8
10 is a bottom view of a modification corresponding to FIG. 5, and FIG. 11 is an enlarged sectional view taken along line 11--11 in FIG. 10. A...hull, B...pump case cover, C...
...Longitudinal center line, D...Length dimension of overlap, H1, H2...Protrusion height dimension of fin, L1,
L2... Length dimension of fins, W1, W2... Left and right spacing between fins, 10... Hull, 14...
Pump case cover, 18... Sled plate, 19... Wing piece, 26L, 26R... Inner fin, 27L
, 27R... Outer fin, 28, 29... Front end, 30, 31... Rear end.

Claims

[Scope of Claim for Utility Model Registration] 1. A flat strip-shaped sliding sled plate extending along the longitudinal direction of the hull, and upwardly extending from both left and right ends of the sled plate in order to attach the sled plate to the rear bottom surface of the hull. It consists of a pair of mounting wings that protrude continuously and integrally, and one or more inner fins extending along the fore-and-aft direction are located approximately at the front half of the sled plate, and approximately at the rear half of the sled plate. At the position, a plurality of outer fins extending parallel to the inner fins at regular intervals are provided, all of which project downward and in a symmetrical arrangement as a whole. A pump case cover for a jet propulsion system on a personal watercraft. 2. A pump case cover for a jet propulsion device in a personal watercraft as claimed in claim 1, characterized in that the length of the inner fin is short and the length of the outer fin is long. 3. A planing boat according to claim 1 of the Utility Model Registration Claim, characterized in that the rear end of the inner fin and the front end of the outer fin are set in a relationship such that they overlap each other when viewed from the left and right. Pump case cover for jet propulsion equipment. 4. The inner fins are a pair of left and right fins facing each other with a narrow constant interval, and the outer fins are a pair of left and right fins facing each other with a wide constant interval, all of which extend in parallel. Scope of claim for utility model registration characterized by
A pump case cover for a jet propulsion device in a personal watercraft according to item 1. 5. A pump case cover of a jet propulsion device in a personal watercraft according to claim 1, wherein both the front and rear ends of the inner fin and the front and rear ends of the outer fin are both tapered. .