CH126132A - Support for tree ladders. - Google Patents
Support for tree ladders.Info
- Publication number
- CH126132A CH126132A CH126132DA CH126132A CH 126132 A CH126132 A CH 126132A CH 126132D A CH126132D A CH 126132DA CH 126132 A CH126132 A CH 126132A
- Authority
- CH
- Switzerland
- Prior art keywords
- support
- tree
- ladders
- stiles
- tree ladders
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/42—Ladder feet; Supports therefor
- E06C7/423—Ladder stabilising struts
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/14—Ladders capable of standing by themselves
- E06C1/16—Ladders capable of standing by themselves with hinged struts which rest on the ground
- E06C1/20—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Description
Stütze für Baumleitern. Es sind Stützen für Baumleitern bekannt, welche aus zwei scherenartig aneinander- gelenkten Stangen bestehen, an deren Enden Haken vorgesehen sind. Diese Stangen grei fen mittelst der Haken an den verhältnis mässig schwachen Sprossen an.
Gegenstand vorliegender Erfindung ist eine Stütze, welche an den Leiterholmen an greift. .Sie besteht aus zwei gleichgebauten, kreuzweise aufstellbaren Stangen, von denen jede an ihrem obern Ende m:it einer offenen, Mittel zum Umfassen je eines der Holme aufweisenden Gabel versehen ist. Die Stütze kann derart ausgebildet sein, dass jede Stange für sich aufstellbar ist.
Auf der beiliegenden Zeichnung ist eine beispielsweise Ausführungsform des Erfin dungsgegenstandes dargestellt. Es zeigen: Fig. 1 einen Teil einer Leiter mit den an den Holmen angreifenden Gabeln der Stütze, im Aufriss, und in Fig. 2 im Grundriss; Fig. 3 und 4 stellen in Vorder- bezw. Seitenansicht das Ende einer einzelnen Stange der Stütze dar. 1 und 2 sind die Holme einer Baumleiter. Zum Stützen derselben dienen zwei Stangen 4, 5, die oben je eine Gabel 3 aufweisen. Letztere besitzt zwei Arme 6, 7, welche zu sammen einen Holmen umfassen können.
An den Gabeln 3 ist ein Rohrstück 8 an geschweisst, in welches die Stange eingesteckt ist.
Während das eine Ende 6 der Gabel die vordere Seite des Holmes umfasst, erfasst das andere Ende 7 die hintere Seite und eine Sprosse. Beim Bruch der Sprosse werden die Holmen 1, 2 zwischen den Gabelarmen ein geklemmt, so dass die Leiter ohne Zuhilfe nahme von Sprossen gehalten wird, und nicht fallen kann.
Die beiden Stangen werden zweckmässig, sich kreuzend, unabhängig voneinander auf dem Boden abgestützt. Da die Holmen von den Gabeln fast gänzlich umfasst werden, so ist grosse Sicherheit gegen ein Verstellen oder ein Brechen der Stützeinrichtung gegeben, da nicht, wie bei bekannten Leiterstützen, hauptsächlich die verhältnismässig schwachen Sprossen beansprucht werden.
Support for tree ladders. There are known supports for tree ladders which consist of two scissor-like rods articulated to one another and at the ends of which hooks are provided. These rods grip the relatively weak rungs by means of the hooks.
The present invention is a support which engages on the ladder rails. It consists of two identically constructed rods that can be set up crosswise, each of which is provided at its upper end with an open fork, each having a means for embracing one of the bars. The support can be designed in such a way that each pole can be set up on its own.
In the accompanying drawing, an example embodiment of the subject of the invention is shown. They show: FIG. 1 a part of a ladder with the forks of the support engaging on the stiles, in elevation, and in FIG. 2 in plan; 3 and 4 represent in front or respectively. Side view shows the end of a single pole of the support. Figures 1 and 2 are the stiles of a tree ladder. Two rods 4, 5, each of which has a fork 3 at the top, serve to support the same. The latter has two arms 6, 7, which can include a spar together.
On the forks 3, a piece of pipe 8 is welded into which the rod is inserted.
While one end 6 of the fork includes the front side of the spar, the other end 7 includes the rear side and a rung. When the rung breaks, the bars 1, 2 are clamped between the fork arms so that the ladder is held by rungs without assistance and cannot fall.
The two rods are expediently supported on the floor, crossing each other, independently of one another. Since the spars are almost completely encompassed by the forks, there is great security against adjustment or breaking of the support device, since it is not mainly the relatively weak rungs that are stressed, as is the case with known ladder supports.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH126132T | 1927-09-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH126132A true CH126132A (en) | 1928-06-01 |
Family
ID=4384710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH126132D CH126132A (en) | 1927-09-29 | 1927-09-29 | Support for tree ladders. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH126132A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2890823A (en) * | 1954-06-01 | 1959-06-16 | Jack W Bendick | Self-levelling ladder |
DE1138903B (en) * | 1958-04-11 | 1962-10-31 | Constantin Bucher | Free-standing tree ladder with tapering ground fasteners |
US4130181A (en) * | 1977-05-25 | 1978-12-19 | Mccallum William J P | Ladder support system |
-
1927
- 1927-09-29 CH CH126132D patent/CH126132A/en unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2890823A (en) * | 1954-06-01 | 1959-06-16 | Jack W Bendick | Self-levelling ladder |
DE1138903B (en) * | 1958-04-11 | 1962-10-31 | Constantin Bucher | Free-standing tree ladder with tapering ground fasteners |
US4130181A (en) * | 1977-05-25 | 1978-12-19 | Mccallum William J P | Ladder support system |
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