• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Support joint ladder consisting of a bottom ladder (B) comprising side flanges (7), step pins (4), a top ladder (A) comprising side flanges (5), step pins (1), (2) which differ in color from the other color of the support joint steps , and an open c-shaped step pin (3), characterized in that the open c-shaped step pin (3) is attached to the back of the side flanges (5) on the top steps (A) at a distance (d) from the step pin (2) to placed from above around the step pin (4) on the bottom step (B).
    公开号:FI13027Y1
    申请号:FIU20210001U
    申请日:2021-01-02
    公开日:2021-09-29
    发明作者:Ilpo Kustaa Pernaa
    申请人:Ilpo Kustaa Pernaa；
    IPC主号:
    专利说明:

    The invention relates to an extension ladder, the safety area of which differs from the other coloring of the ladder when the length of the ladder changes. Leaning ladders are already known, in which the safety area, which differs from the other coloring of the ladder, comprises the two lowest ones of the paving ladder. When changing the length of the extension ladders, the smallest part of the frame ladder closest to the guard area of the cover ladder remains in the blind when viewed from above, because it is located deeper than the small line of the cover ladder. Ko. the small remains outside the safety zone in the extended position of the ladder.
    By means of a small one according to the invention, which differs in color, shape and position,
    The small visibility of the S N remaining in the trunk ladder is improved. The invention is characterized by what is shown below
    N T 20 in the characterizing part of the protection requirement. a o o Oo N The invention has the advantage of improving safety
    N> as the area expands to the small one in the shadows as the length of the extension ladders changes.
    The invention will now be described in more detail with reference to the accompanying drawing, in which Fig. 1 shows a leaning ladder in front oblique, extended, locked. forward along the surface of the ladder B. The support extension ladder can be locked in the extended position by means of locks 6. The coloring of C, which differs from the rest of the outrigger ladder C, covers the small 1,2 and the open c-profile small 3 with its side brackets 5. In the extended position, the open _ c-profile small 3 attached to the rear edge of the side bracket A 5 rests
    S N B around the small 4 attached to the side girder 7. 3 <
    N T 20 In Fig. 2, the open c-profile small a 3 3 of the leaning ladders is attached to the cover ladder A in the rear part of the side rafters 5. The open c-profile small 3 is distant from the small 2
    N> with reason d to settle on the frame ladder B around the small 4 tightly from above. Since the open c-profile small 3 is attached to the cover ladder A at the rear of the side rafters 5, it is placed at the same depth as the frame ladder B with the small 4.
    In Fig. 3, the open c-profile small 3 is fixed to the cover ladder A at the rear of the side rafters 5 by screws, rivets or some other durable fastening method. OF O OF
    O <Q + OF
    I Ao 2 O
    Oo S OF O OF D
    权利要求:
    Claims (1)
    [1]
    1.Support ladders comprising frame ladders (B) comprising side rafters (7), small (4), cover ladders (A) comprising side rafters (5), small ladders (1), (2) and open c-profile small (3). characterized in that the open c-profile small (3) is attached to the cover ladder (A) at the rear of the side rafters (5) at a distance (d) from the small (2) to settle from above on the frame ladder (B) around the small (4).
    OF
    O
    OF
    O <Q +
    OF
    I Ao 2 o o Oo
    OF
    O
    OF
    D
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2021-09-29| FGU| Utility model registered|Ref document number: 13027 Country of ref document: FI Kind code of ref document: U1 |
    优先权:
    申请号 | 申请日 | 专利标题
    FIU20200117|2020-10-23|
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