KR20090053455A - A ladder - Google Patents
A ladder Download PDFInfo
- Publication number
- KR20090053455A KR20090053455A KR1020070120308A KR20070120308A KR20090053455A KR 20090053455 A KR20090053455 A KR 20090053455A KR 1020070120308 A KR1020070120308 A KR 1020070120308A KR 20070120308 A KR20070120308 A KR 20070120308A KR 20090053455 A KR20090053455 A KR 20090053455A
- Authority
- KR
- South Korea
- Prior art keywords
- ladder
- height adjustment
- stopper
- vertical frame
- height
- Prior art date
Links
Images
Classifications
-
- 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
- E06C1/04—Ladders for resting against objects, e.g. walls poles, trees
- E06C1/08—Ladders for resting against objects, e.g. walls poles, trees multi-part
- E06C1/12—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic
-
- 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
- E06C1/18—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as ladders
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/02—Extending means
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/06—Securing devices or hooks for parts of extensible ladders
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/08—Special construction of longitudinal members, or rungs or other treads
- E06C7/081—Rungs or other treads comprising anti-slip features
-
- 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
- E06C7/426—Height adjustable supports for receiving both ladder feet
-
- 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
- E06C7/44—Means for mounting ladders on uneven ground
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
More specifically, it relates to a height-adjustable ladder that enables stable horizontal installation regardless of ground conditions.
Features of the present invention,
In the ladder having a height adjustment member, the height adjustment member,
A height adjusting leg which is inserted in a sliding manner through the lower end of the vertical frame and has a locking portion on an inward or outward surface; A stopper pivotally coupled to the vertical frame, the stopper having a relative locking portion selectively engaged with the locking portion; The contact member for pushing the stopper to be in close contact with the engaging portion; consisting of.
Ladder, height adjustment, height adjustment
Description
The present invention relates to a height adjustable ladder.
More specifically, it relates to a height-adjustable ladder that enables stable horizontal installation regardless of ground conditions.
In general, since the ladder is supported on the ground, stable installation is possible only when the ground conditions are parallel.
If the ground is uneven, the ladder can only be supported at an angle, which may cause a safety accident such as the ladder to overturn. .
1 is a representative view of the domestic utility model registration No. 20-347538. According to this, the conventional ladder is slide-inserted the
However, this conventional ladder is inconvenient in height adjustment work, because the height adjustment, before the operation must be adjusted in advance, and if the balance is not balanced to go through several adjustment process.
In addition, a
Accordingly, the present invention has been proposed to solve the conventional problems as described above, the main object of the present invention is to provide a ladder that can be adjusted in height so that easier and finer control in adjusting the height of the ladder.
The main features of the present invention for achieving the above object are as follows.
<
In the ladder having a height adjustment member, the height adjustment member,
A height adjusting leg which is inserted in a sliding manner through the lower end of the vertical frame and has a locking portion on an inward or outward surface; A stopper pivotally coupled to the vertical frame, the stopper having a relative locking portion selectively engaged with the locking portion; It is a ladder having a height adjusting member, characterized in that consisting of; a close contact member for pushing the stopper in close contact with the engaging portion.
<Feature 2>
The engaging portion and the relative engaging portion is a ladder having a height adjusting member, characterized in that the teeth are opposite to each other.
<Feature 3>
The lower end of the stopper is a ladder having a height adjusting member, characterized in that the pressing portion for pressing the stopper to rotate.
<Feature 4>
The ladder having a height adjustment member, characterized in that it further comprises a non-slip member rotatably coupled to the lower end of the height adjustment member.
<Feature 5>
It is a ladder having a height adjustment member, characterized in that it further comprises that the horizontal system is installed on any one footrest is installed on the vertical frame.
<Feature 6>
Is installed on the vertical frame is a ladder having a height adjusting member, characterized in that it further comprises a safety member for selectively holding the engaging portion of the height adjustment leg.
<Feature 7>
The safety member,
A housing fixed to the vertical frame and having a key hole and a locking hole formed on one surface thereof; A ratchet bar installed in the housing so as to be able to move forward and backward, and having a ratchet caught on a locking portion of the height adjusting leg at a front end thereof; An elastic body for elastically pushing the ratchet bar toward the locking portion; The ladder is formed integrally with the ratchet bar, and has a height adjusting member, comprising a key bar selectively caught by the locking hole.
<Feature 8>
The contact member,
Ladder having a height adjusting member, characterized in that consisting of a spring interposed between the vertical frame and the bottom of the stopper.
Ladder according to the present invention is easy and easy to adjust the height, fine adjustment of the height is possible, and the height adjustment member is robust has the effect of significantly reducing the risk of safety accidents.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
2 is an overall perspective view of the ladder according to the present invention having a height adjustment function, Figure 3 is an exploded perspective view of the main part of the ladder according to the present invention, Figure 4a is a sectional view of the main part of the ladder according to the present invention, the height adjustment leg Figure 4b is a state diagram and a stopper, Fig. 4b is a cross-sectional view of the main portion of the ladder according to the present invention, the height adjustment leg and the stopper is a state diagram spaced apart, Figure 5 shows the installation state of the ladder according to the invention.
Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings.
However, the present invention is not limited to the embodiments disclosed below, but may be embodied in various different forms, and the present embodiments merely make the disclosure of the present invention complete, and those skilled in the art to which the present invention pertains. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims.
According to the drawings, the present invention is a height adjustment member from a ladder consisting of a pair of
The
The
The
The lower end of the
The
The
2 to 4b, the pin (P) is rotatably coupled to the vertical frame (100), and has a multi-stage serrated shape to selectively engage with the catching portion (310). Has 410.
Here, the
In addition, the lower end of the
On the other hand, the
In addition to the above configuration, the present invention further includes a
The
A
In addition, in the present invention, it is preferable that a
Looking at the installation process of the ladder of the present invention having the above configuration as follows.
If the ground of the ladder is installed in the present invention is smooth, the use of the
On the other hand, when the ground on which the ladder is installed is inclined or stepped, it is necessary to adjust the height of the
5, for example, when the left side of the ladder has a low ground and the right side of the ladder has a high deviation, the height adjusting leg located on the left side of the ladder should be pulled out by the height deviation.
Looking at the process, from the state of Figure 4a, when the
Then, since the
If the exposure length of the
On the other hand, if a problem occurs in the fixing force of the
1 is an example of a conventional ladder having a height adjustment function
2 is an overall perspective view of a ladder according to the present invention having a height adjustment function
Figure 3 is an exploded perspective view of the main part of the ladder according to the present invention
Figure 4a is a cross-sectional view of the main portion of the ladder according to the present invention, the height adjustment leg and the stopper is a state diagram
Figure 4b is a cross-sectional view of the main portion of the ladder according to the present invention, the height adjustment leg and the stopper spaced apart state diagram
Figure 5 is an installation state of the ladder according to the invention
<Explanation of symbols for the main parts of the drawings>
100. Vertical frame 200: scaffold
210: level 300: height adjustment leg
400: stopper 430: contact member
500: safety member
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070120308A KR20090053455A (en) | 2007-11-23 | 2007-11-23 | A ladder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070120308A KR20090053455A (en) | 2007-11-23 | 2007-11-23 | A ladder |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20090053455A true KR20090053455A (en) | 2009-05-27 |
Family
ID=40860963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020070120308A KR20090053455A (en) | 2007-11-23 | 2007-11-23 | A ladder |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR20090053455A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011055863A1 (en) * | 2009-11-03 | 2011-05-12 | (주)디엔피테크 | Leveling device of ladder |
KR101437266B1 (en) * | 2013-01-28 | 2014-09-02 | 김행남 | Horizontal level adjustable ladder |
CN105221064A (en) * | 2015-10-23 | 2016-01-06 | 苏州飞华铝制工业有限公司 | A kind of locking device of combination ladder |
CN105221063A (en) * | 2015-10-23 | 2016-01-06 | 苏州飞华铝制工业有限公司 | A kind of locking device of combination ladder |
KR20210085361A (en) * | 2019-12-30 | 2021-07-08 | 안예원 | A ladder apparatus |
-
2007
- 2007-11-23 KR KR1020070120308A patent/KR20090053455A/en not_active Application Discontinuation
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011055863A1 (en) * | 2009-11-03 | 2011-05-12 | (주)디엔피테크 | Leveling device of ladder |
KR101437266B1 (en) * | 2013-01-28 | 2014-09-02 | 김행남 | Horizontal level adjustable ladder |
CN105221064A (en) * | 2015-10-23 | 2016-01-06 | 苏州飞华铝制工业有限公司 | A kind of locking device of combination ladder |
CN105221063A (en) * | 2015-10-23 | 2016-01-06 | 苏州飞华铝制工业有限公司 | A kind of locking device of combination ladder |
CN105221064B (en) * | 2015-10-23 | 2017-01-04 | 苏州飞华铝制工业有限公司 | Locking device of combined ladder |
CN105221063B (en) * | 2015-10-23 | 2017-01-11 | 苏州飞华铝制工业有限公司 | Novel locking device of combined ladder |
KR20210085361A (en) * | 2019-12-30 | 2021-07-08 | 안예원 | A ladder apparatus |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |