KR101769363B1 - Ladder - Google Patents
Ladder Download PDFInfo
- Publication number
- KR101769363B1 KR101769363B1 KR1020160031030A KR20160031030A KR101769363B1 KR 101769363 B1 KR101769363 B1 KR 101769363B1 KR 1020160031030 A KR1020160031030 A KR 1020160031030A KR 20160031030 A KR20160031030 A KR 20160031030A KR 101769363 B1 KR101769363 B1 KR 101769363B1
- Authority
- KR
- South Korea
- Prior art keywords
- upper plates
- link
- ladder
- rotation center
- vertical
- Prior art date
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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
- E06C1/14—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
- E06C1/22—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles with extensible, e.g. telescopic, ladder parts or struts
-
- 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
-
- 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
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/42—Ladder feet; Supports therefor
- E06C7/46—Non-skid equipment
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The ladder according to the present invention comprises a pair of upper plates arranged in a state in which the front surfaces are in close contact with each other and in which the other side is horizontally rotated with respect to the vertical rotation center in one direction and the interval between them is adjusted, A pair of support members arranged along the longitudinal direction and having an upper end rotatably coupled to a lower portion of the upper plates so as to be rotatable forward and backward and to be spaced from each other, both ends in the longitudinal direction being rotatably coupled to the lower portions of the upper plates, And a link member for limiting the separation distance so that the top plates do not deviate from the maximum rotation angle.
Description
More particularly, the present invention relates to a ladder, and more particularly, to an apparatus and a method for controlling a ladder, and more particularly, This is about a ladder that can be secured.
Generally, a ladder is used at the time of a high altitude operation and has a step shape so that an operator can ascend to a certain height.
The conventional ladder is configured such that a pair of supports formed with a plurality of foot plates are hinged to each other so as to be folded or unfolded, and the lower end of the support is laid on a mounting surface after spreading to a certain width.
Thereafter, the worker steps up the foot of the support in succession and ascends to a certain height, and performs a complaint operation with both feet on the footboard.
Among such conventional ladders, an upper plate is formed on the upper part of the support so that the operator can perform the elevation work at a higher position.
However, the conventional ladder can not secure a support force in a direction perpendicular to the pivoting direction of the support table because the pair of supports extend in a straight line, and since the width of the upper plate that the operator can climb is fixed, There was concern that the worker would fall.
In addition, the conventional ladder has a large volume even when the support is folded, so that it is difficult to store the ladder, and it is also difficult to carry a ladder having a large weight.
Prior art related to the present invention is the Korean Registered Application No. 20-0464791 (Jan. 11, 2013), which discloses a fixed safety ladder.
The object of the present invention is to provide an apparatus and a method for controlling a width of a top plate and a supporting plate by controlling a width of a top plate and a mounting angle of a support plate in a wide range while reducing the width of the top plate, So that it is possible to secure the safety in the ladder operation and to ensure the ease of storage when not in use.
In addition, since the space between the upper plate and the support table is reduced, the movable table is moved to a desired position by the use of a moving roller, and the support is further supported between the support tables by using an auxiliary support that can be extended and retracted. Which can prevent the support member from being easily conducted by the support member.
The ladder according to the present invention comprises a pair of upper plates arranged in parallel with each other in a state in which their front surfaces are in close contact with each other and the other side of which is horizontally rotated with respect to a vertical rotation center in one direction, A pair of support members arranged along the vertical direction and having an upper portion rotatably coupled to the lower portions of the upper plates so as to be spaced from each other, both ends in the longitudinal direction being rotatably coupled to the lower portions of the upper plates, The upper surface of the upper plate may be in close contact with the upper surface of the upper plate through a folding operation of the upper plate.
Here, vertical pins for forming the vertical rotation center are vertically coupled to one side of the upper plates, and the link members are disposed in the other side of the upper plates opposite to the vertical pins.
In addition, a latching pin and a hook are provided on one side surface of the upper plates on which the link member is disposed, respectively, and the hook is hooked or hooked to the latching pin through a rotation in the vertical direction.
In addition, a first guide beam and a second guide beam, which are curved with a radius of rotation of the upper plates, are horizontally coupled to the lower portions of the upper plates, respectively, and the first guide beams and the second guide beams, And the length is expanded and contracted while being slid by the rotation of the upper plates.
In addition, it is preferable that the pair of support rods are formed with one or more split ends horizontally divided along the longitudinal direction, and the split ends are connected to be folded or unfolded by the horizontal fins forming the horizontal rotation center.
Preferably, the split end is further coupled with a lock member that locks or unlocks the folded or unfolded state to be maintained.
In addition, a moving roller rotatable forward and backward is further coupled to the outside of the horizontal pin, and a lower end of the moving roller is exposed downward when the lower ends of the pair of supports are folded upward.
The link member may include a first link whose one end in the longitudinal direction is coupled to the lower end of one of the upper plates to be rotatable in the horizontal direction and one end in the longitudinal direction that is horizontally rotatably coupled to the lower end of the other of the upper plates, And one end of the first link intersecting with one end of the first link is connected to the second link such that the first link is horizontally rotatable with respect to the vertical rotation center.
The first link and the second link are folded while being horizontally rotated in the direction of the vertical rotation center of the upper plates when the front surfaces of the upper plates are in close contact with each other, .
Preferably, one end of the second link is bent and extended in a direction opposite to the vertical rotation center, and is coupled to one end of the first link so as to be horizontally rotatable.
In addition, a vertical pin for forming the vertical rotation center is coupled to the vertical rotation center of the first link and the second link, and between the pair of supports at the lower end of the link member, It is preferable that an auxiliary support for supporting is further joined.
Preferably, the auxiliary support is formed with one or more split ends horizontally divided along the longitudinal direction, and the split ends are connected to be folded or unfolded by horizontal pins forming a horizontal rotation center.
It is further preferable that the split end is further coupled with a lock member that locks or unlocks the folded or unfolded state to be maintained.
The auxiliary support may include an upper beam having an upper end coupled to a lower end of the vertical pin and a pair of lower beams having upper ends rotatably coupled to lower ends of the upper beams and having a gap between them, desirable.
The present invention has the effect of securing safety in the ladder operation by controlling the width of the upper plate widely during use and by widely adjusting the installation angle of the support base.
In addition, when the non-use case is used, the width of the upper plate is reduced and at the same time, the installation angle and length of the support frame are reduced, thereby ensuring the ease of storage when not in use.
Further, by moving the upper plate and the support base to a desired position by using the moving roller in a state in which the volume of the upper plate and the support base is reduced, the ease of transportation can be secured.
In addition, by supporting the space between the supports by using an auxiliary support capable of extending and contracting the length, it is possible to prevent the support from being conducted by the shaking.
1 is a perspective view showing a ladder according to the present invention.
2 is a front view showing a state in which the supports of the ladder according to the present invention are unfolded.
3 is a rear view showing a state in which the supports of the ladder according to the present invention are unfolded.
4 is a side view showing a state in which the supports of the ladder according to the present invention are unfolded.
5 is a plan view showing a state in which the supports of the ladder according to the present invention are unfolded.
6 is a bottom view showing a state in which the supports of the ladder according to the present invention are unfolded.
7 is a perspective view showing a state in which a support of a ladder according to the present invention is folded.
8 is a side view showing a state in which a support of a ladder according to the present invention is folded.
FIG. 9 is an enlarged perspective view showing a state in which the upper plates of the ladder according to the present invention are separated from each other.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving it will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings.
The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.
In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.
FIG. 1 is a perspective view showing a ladder according to the present invention, FIG. 2 is a front view for showing a state in which supports of a ladder according to the present invention are opened, and FIG. 3 is a view showing a state in which supports of a ladder according to the present invention are unfolded Is a back view for giving a period.
5 is a plan view showing a state in which the supports of the ladder according to the present invention are unfolded. FIG. 6 is a plan view of the ladder according to the present invention, Is a bottom view for showing the state of the supports of the apparatus.
FIG. 7 is a perspective view showing a state in which a support of a ladder according to the present invention is folded, FIG. 8 is a side view showing a state in which a support of a ladder according to the present invention is folded, Is a perspective enlarged perspective view for showing a state in which the top plates of the ladder are separated from each other.
1 to 9, a ladder according to the present invention includes a pair of
First, the
Here, the upper surface of the
The
The
On the contrary, when the front surfaces of the
In more detail, the
Since the other side of the
3, a
For this, a coupling portion (not shown) which can be vertically crossed can be formed at one side of the
At this time, the
That is, the width can be varied by folding or unfolding the other direction corresponding to one direction of the
The
9, the
For this, one end of the
A
The engaging
The
One end of the
For example, in the case where the
The
Here, the
The
At this time, the
On the upper surface of the
In addition, the
That is, when the non-use case is not in use, the
In addition, the
The
The locking
7 and 8, a moving
That is, the lower ends of the
In this state, the operator can move the ladder while pushing or pulling the ladder in the advancing direction with the ladder inclined at a certain angle. Since the moving
In addition, the
When the
On the other hand, when the
The
In addition, the
The
6 and 9, the
6 and 9, one end of the
One end of the
One end of the
The
On the other hand, when the front surfaces of the
The support pins 400 may be further coupled to the lower ends of the
A plurality of
Here, the
The
That is, when the
The
Here, the
The upper ends of the
That is, the
In addition, the
The locking
The locking
A
As a result, according to the present invention, while the width of the
By using the
Although the specific embodiments of the ladder of the present invention have been described so far, it is apparent that various modifications can be made without departing from the scope of the present invention.
Therefore, the scope of the present invention should not be construed as being limited to the embodiments described, but should be determined by the scope of claims of the patent as well as the claims of the patent registration described later.
That is, it should be understood that the above-described embodiments are illustrative and non-restrictive in all aspects and that the scope of the present invention is indicated by the appended claims rather than the detailed description, Ranges and equivalents thereof are to be construed as being included within the scope of the present invention.
100: top plate 110: vertical pin
120: first guide beam 130: second guide beam
140: latch pin 150: hook
200: support frame 210: scaffold
220: Horizontal pin 230: Locking member
231: switch 240: moving roller
250: non-slip cap 300: link member
310: first link 320: second link
321: Bend 330: Vertical pin
400: auxiliary support 410: upper beam
420: lower beam 430: horizontal pin
440: Locking member 441: Switch
450: non-slip cap
Claims (14)
A pair of supporting members arranged on the upper and lower longitudinal sides and having an upper portion rotatably coupled to a lower portion of the upper plates to adjust a gap therebetween; And
A link member rotatably coupled to both ends of the upper plates in the longitudinal direction so that the front surfaces of the upper plates are brought into close contact with each other through a folding operation of a section of the upper plates or the distance between the upper plates is restricted so as not to exceed the maximum rotation angle Characterized in that it comprises a ladder.
In one direction of the upper plates,
A vertical pin for forming the vertical rotation center is vertically coupled,
The link member
Wherein the ladder is disposed in the other direction of the upper plates opposite to the vertical pins.
On one side of the top plates on which the link members are disposed,
A hook pin and a hook are respectively installed,
The hook
And the latching pin is engaged or latched by rotation in the vertical direction.
In the lower portion of the upper plates,
Wherein a first guide beam and a second guide beam, which are curved by a turning radius of the upper plates, are coupled horizontally,
Wherein the first guide beam and the second guide beam are arranged so that,
And the length of the ladder is expanded and contracted while the upper plates are slid by the rotation of the upper plates.
Wherein the pair of supports comprises:
One or more divided ends horizontally divided along the longitudinal direction are formed,
The split end
Wherein the ladder is vertically folded or unfolded by horizontal pins forming a horizontal rotation center.
At the split end,
Further comprising a locking member for locking or unlocking to maintain the folded or unfolded condition.
On the outside of the horizontal pin,
A transfer roller rotatable forward and backward is further coupled,
The lower end of the moving roller
And the bottom of the pair of supports is exposed downward when folded upward.
The link member
A first link whose one end in the longitudinal direction is horizontally rotatably coupled to the lower end of one of the upper plates,
And a second link having one end in the longitudinal direction coupled to the lower end of the other one of the upper plates so as to be rotatable in the horizontal direction and one end intersecting with one end of the first link to be horizontally rotatable with reference to the vertical rotation center Features a ladder.
Wherein the first link and the second link are connected to each other,
Wherein the front surfaces of the upper plates are folded while being horizontally rotated in the direction of the vertical rotation center of the upper plates when the front surfaces of the upper plates are in close contact with each other, and the front surfaces of the upper plates are spread in a direction opposite to the vertical rotation center when they are mutually separated.
Wherein one end of the second link
Wherein the ladder extends in a direction opposite to the vertical rotation center, and is coupled to one end of the first link so as to be horizontally rotatable.
At a vertical rotation center of the first link and the second link,
A vertical pin for forming the vertical rotation center is coupled,
At the lower end of the vertical pin,
Further comprising an auxiliary support for further supporting between the pair of supports at a lower portion of the link member.
Wherein the auxiliary support comprises:
One or more divided ends horizontally divided along the longitudinal direction are formed,
The split end
Wherein the ladder is folded or unfolded by a horizontal pin forming a horizontal rotation center.
At the split end,
Further comprising a locking member for locking or unlocking to maintain the folded or unfolded condition.
Wherein the auxiliary support comprises:
An upper beam coupled to a lower end of the vertical pin,
And a pair of lower beams, each of which is rotatably coupled to the lower end of the upper beam and whose upper and lower ends are spaced from each other, is provided.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020160031030A KR101769363B1 (en) | 2016-03-15 | 2016-03-15 | Ladder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020160031030A KR101769363B1 (en) | 2016-03-15 | 2016-03-15 | Ladder |
Publications (1)
Publication Number | Publication Date |
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KR101769363B1 true KR101769363B1 (en) | 2017-08-18 |
Family
ID=59753241
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020160031030A KR101769363B1 (en) | 2016-03-15 | 2016-03-15 | Ladder |
Country Status (1)
Country | Link |
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KR (1) | KR101769363B1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109025779A (en) * | 2018-07-14 | 2018-12-18 | 黄崇华 | Skidding type household does not fall terraced |
CN110259370A (en) * | 2019-06-20 | 2019-09-20 | 中交二航局第四工程有限公司 | A kind of inclination angle can adaptively adjust and the ladder for remaining horizontal of marking time |
CN114575735A (en) * | 2022-03-11 | 2022-06-03 | 国网河北省电力有限公司邯郸市峰峰矿区供电分公司 | Folding ladder for automatic maintenance of power dispatching |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100871394B1 (en) | 2008-04-04 | 2008-12-02 | 김만섭 | Ladder with safe guard |
-
2016
- 2016-03-15 KR KR1020160031030A patent/KR101769363B1/en active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100871394B1 (en) | 2008-04-04 | 2008-12-02 | 김만섭 | Ladder with safe guard |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109025779A (en) * | 2018-07-14 | 2018-12-18 | 黄崇华 | Skidding type household does not fall terraced |
CN110259370A (en) * | 2019-06-20 | 2019-09-20 | 中交二航局第四工程有限公司 | A kind of inclination angle can adaptively adjust and the ladder for remaining horizontal of marking time |
CN110259370B (en) * | 2019-06-20 | 2023-12-08 | 中交二航局第四工程有限公司 | Ladder stand with self-adaptive adjustment inclination angle and stepping kept horizontal all the time |
CN114575735A (en) * | 2022-03-11 | 2022-06-03 | 国网河北省电力有限公司邯郸市峰峰矿区供电分公司 | Folding ladder for automatic maintenance of power dispatching |
CN114575735B (en) * | 2022-03-11 | 2023-10-03 | 国网河北省电力有限公司邯郸市峰峰矿区供电分公司 | Folding ladder for automatic overhaul of power dispatching |
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