JPH03107300U

JPH03107300U -

Info

Publication number: JPH03107300U
Application number: JP1504290U
Authority: JP
Priority date: 1990-02-16
Filing date: 1990-02-16
Publication date: 1991-11-05

Description

[Brief explanation of drawings]

第１図は、この考案の実施例に係る自走式サー
フボードの要部略示平面図、第２図は同実施例に
係る要部略示正面図、第３図は同実施例の略示組
立図、第４図および第５図は第１図のＡ〜Ａ′断
面のそれぞれ後方および前方を見た要部略示断面
図である。第６図はこの考案の実施例に係る原動
機付推進部とサーフボード本体との連結部の要部
略示断面図である。１……サーフボード本体、２……原動機付推進
機部、３……案内溝、４……締着ボルト、５……
コロ、６……ボルト孔、７……締着ナツト、８…
…水面、２１……マグネツト付フロート、２２…
…マグネツト付吸気栓、２３……合成ゴム製ガス
ケツト、２４……案内筒、２５……スプリング、
２６……案内棒、２７……小孔、２８……通気管
、２９……マグネツト。 FIG. 1 is a schematic plan view of the main parts of a self-propelled surfboard according to an embodiment of the invention, FIG. 2 is a schematic front view of the main parts of the same embodiment, and FIG. 3 is a schematic diagram of the same embodiment. The assembled drawings, FIGS. 4 and 5 are schematic cross-sectional views of main parts taken from A to A' in FIG. 1, looking from the rear and the front, respectively. FIG. 6 is a schematic cross-sectional view of a main part of a connecting portion between a motorized propulsion section and a surfboard body according to an embodiment of this invention. 1... Surfboard body, 2... Motor propulsion unit, 3... Guide groove, 4... Tightening bolt, 5...
Roller, 6... Bolt hole, 7... Tightening nut, 8...
...Water surface, 21...Float with magnet, 22...
... Intake plug with magnet, 23 ... Synthetic rubber gasket, 24 ... Guide cylinder, 25 ... Spring,
26...Guide rod, 27...Small hole, 28...Vent pipe, 29...Magnet.

Claims

[Scope of Claim for Utility Model Registration] 1. A self-propelled surfboard having a motorized propulsion unit, which is divided into a surfboard body containing a built-in motorized propulsion unit and a ventilation pipe to the motor, and at the time of division, the motorized propulsion unit is A self-propelled surfboard characterized in that the opening of the ventilation pipe fitting part automatically closes and the divided body is detachable. 2. In the ventilation route from the ventilation pipe built into the surfboard body to the prime mover section, a float with a magnet is provided at the end of the ventilation pipe, and the vertical movement of the float with a magnet and the action of a spring close the intake plug with a magnet on the side of the prime mover. allows opening and closing of
A ventilation path control device for making the divided body of the self-propelled surfboard according to claim 1 detachable even on the water surface by controlling the air ventilation path to the prime mover section.