WO2017093978A1 - Foldable ladder with foldable steps - Google Patents

Foldable ladder with foldable steps Download PDF

Info

Publication number
WO2017093978A1
WO2017093978A1 PCT/IB2016/057333 IB2016057333W WO2017093978A1 WO 2017093978 A1 WO2017093978 A1 WO 2017093978A1 IB 2016057333 W IB2016057333 W IB 2016057333W WO 2017093978 A1 WO2017093978 A1 WO 2017093978A1
Authority
WO
WIPO (PCT)
Prior art keywords
ladder
posts
steps
foldable
casing
Prior art date
Application number
PCT/IB2016/057333
Other languages
French (fr)
Inventor
Cyron Nowell MASWENG
Original Assignee
Masweng Cyron Nowell
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Masweng Cyron Nowell filed Critical Masweng Cyron Nowell
Publication of WO2017093978A1 publication Critical patent/WO2017093978A1/en

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
    • E06C7/006—Devices for preventing access
    • 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
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
    • E06C1/383—Foldable ladders in which the longitudinal members are brought together on folding
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • 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
    • E06C7/082—Connections between rungs or treads and longitudinal members

Definitions

  • This utility model relates generally to ladders but more particularly to a foldable ladder with foldable steps.
  • foldable ladders usually have ladder posts that are foldable and ladder steps that can't be folded.
  • the ladder steps are usually flat and it is fixedly attached to the ladder posts.
  • the said foldable ladder is still bulky and occupies a lot of space even when the ladder is folder since the ladder steps can't be folded. While foldable ladders are easier to carry and store compared to ladders that are not foldable, it is still not handy and it is uncomfortable to carry in long distances.
  • the subject utility model would minimize the space occupied when the ladder is folded and improve the ladder's portability.
  • Another object of the subject utility model is to provide the foldable ladder with a casing that would enclose other ladder parts when the ladder is folded to add comfort to the user carrying it.
  • FIG. 1 is the exterior view of the ladder when it is folded.
  • FIG. 2 is a front view of the ladder showing the interior when the ladder is folded.
  • FIG. 3 is a side view of the ladder showing the interior when the ladder is folded.
  • Ladder post was not included in this drawing to avoid crowding and for better presentation of ladder posts and ladder steps.
  • FIG. 4 and FIG. 5 is an enlargement view of the upper part and the lower part of the ladder.
  • FIG. 6 is a top view of ladder pads.
  • FIG. 7 is a side view of ladder pads.
  • FIG. 8 is a three-dimensional view of ladder pads.
  • FIG. 9 is a top view and cross-sectional view of FIG. 2 taken along line
  • FIG. 10 is the side view of ladder posts connector.
  • FIG. 11 is the front view of the ladder posts connector.
  • FIG. 12 and FIG. 13 are the simulation view of opening the ladder.
  • FIG. 14 is a front perspective view of an open and operational ladder.
  • FIG 15 is a top view of ladder steps.
  • FIG. 16 is a front view of ladder steps.
  • FIG. 17 is a side view of an open and operational ladder.
  • FIG. 18 is a side view of a single ladder post.
  • FIG. 19 is an enlargement view and side view of ladder post when it is perpendicular with the ladder steps.
  • FIG. 20 is an enlargement view and side view of ladder posts when it is ready for use.
  • FIG. 21 is an enlargement view at the lower part of the ladder where the ladder post is connected with the ladder casing.
  • FIG. 22 is a fragmentary side view at the bottom of the ladder where the ladder post and the ladder cover are connected when the ladder is open.
  • FIG. 23 is a cross-sectional bottom view of FIG. 21.
  • FIG. 24 is an enlargement view at the lower part of the ladder where the ladder post is connected with the ladder casing.
  • Fig. 25 is a side view of the metal plate that connects the back ladder post and the back ladder cover.
  • FIG. 26 is a cross-sectional bottom view of FIG. 24.
  • FIG. 27 is a three-dimensional view of an open and operational ladder.
  • FIG. 1 foldable ladder with foldable steps generally designated as (35).
  • (1) is a ladder casing and (2) is a casing handle.
  • (3) are ladder pads which are connected with ladder posts (5) and (7) are ladder pads which is connected with ladder posts (4).
  • (6) are ladder steps and (14) is a L shaped metal attached at ladder posts (4) to prevent ladder steps (6) from sliding down since it can freely slide.
  • FIG. 5, FIG. 6, FIG. 7 and FIG. 8, (8) is a needle roller bearing provided at the hole of ladder posts (5).
  • (9) and (10) are rods that connect ladder posts (5) to other ladder parts.
  • Connector rods (10) connect ladder posts (5) with ladder pads (3).
  • Connector rods (9) and (10) needs to be perfectly perpendicular with ladder posts (5) that's why bearing (8) is provided to minimize friction for ladder posts' (5) movement.
  • (11) is a connector which connects ladder posts (5) to ladder posts (4).
  • Connector (11) consist three rods, connector rods (9) and (12).
  • Connector rods (12) are the rods directly connected to ladder posts (4).
  • (13) is a rectangular metal that helps hold connector rods (9) and (12) together.
  • casing (1) When opening the subject ladder (35), casing (1) will be divided into two. These would be half casing (15) and half casing (16). (17) is a part of half casing (15) that serves as lock. Lock (17) would fit inside the provided area of half casing (16) to keep the ladder close. To open the subject ladder (35), half casing would be lifted upwards then pulled to the left.
  • ladder steps (6) is perpendicular with ladder posts (5) and parallel to the ground.
  • ladder posts (5) consists of rods (18), (19), (20) and (21).
  • Ladder steps (6) consist of rods (22), (23), (24) and (25).
  • (26) is a part of ladder posts (5) located between ladder posts' rods (18) and (19) and between ladder posts' rods (20) and (21) that serves as ladder steps' (6) carrier.
  • (27) are rod bumps on ladder step rods (22) and (24). These rod bumps (27) are intended to fit in ladder steps' carrier (26) to improve stability when the ladder is operational. Rod bumps (27) prevent ladder posts (5) from sliding at ladder steps (6) sideward.
  • casing holder rod (28) slides upwards until it hits blocker rod (32) and prevented from further sliding. This will also stop the subject ladder from opening further.
  • FIG. 23, FIG. 24, FIG. 25 and FIG. 26, (34) are rectangular flat metals connected to quarter casing (30) and quarter casing (31). Flat metals (34) prevents quarter casings (30) and (31) from moving side to side.
  • Metal plates (34) are attached to casing holder rod (28) and casing holder rod (29) and serve as their support.
  • (35) is a rod with a hole in the middle provided for casing holder rod (29). Rods with a hole (35) are fixedly attached to ladder posts (4).
  • the ladder casing (1) when the ladder is fully open and operational, the ladder casing (1) would be divided into four quarter casing, the ladder steps (6) would be parallel to the ground and ladder posts (5) would form angle with ladder posts (4).

Abstract

The foldable ladder with foldable steps (35) comprises of ladder posts (5) and ladder steps (6) wherein they are both consist of rods with spaces in between. The spaces in the ladder steps (6) are intended for ladder posts (5) to fit in and the spaces in the ladder posts (5) are intended for the ladder steps (6) to fit in. This makes the rods of ladder posts (5) and the rods ladder steps (6) alternates with each other. The ladder steps (6) and the ladder posts (5) are not screwed together and upon folding the subject ladder (36), the ladder steps (6) would fold by sliding one side upwards at the ladder posts (5). The ladder casing which is attached at the ladder posts (4) and ladder posts (5) wherein it automatically encloses other ladder parts when the ladder is close and divides when the ladder is open.

Description

FOLDABLE LADDER WITH FOLDABLE STEPS
TECHNICAL FIELD
This utility model relates generally to ladders but more particularly to a foldable ladder with foldable steps.
BACKGROUND OF THE ART
Usually for the users, the main advantage of foldable ladders is its ability to become smaller. When the ladder is folded, it is easier to carry and store. Foldable ladders usually have ladder posts that are foldable and ladder steps that can't be folded. The ladder steps are usually flat and it is fixedly attached to the ladder posts.
However, the said foldable ladder is still bulky and occupies a lot of space even when the ladder is folder since the ladder steps can't be folded. While foldable ladders are easier to carry and store compared to ladders that are not foldable, it is still not handy and it is uncomfortable to carry in long distances.
OBJECTS OF THE UTILITY MODEL
It is therefore the main object of the subject utility model to provide a foldable ladder with both foldable ladder posts and foldable steps. The subject utility model would minimize the space occupied when the ladder is folded and improve the ladder's portability.
Another object of the subject utility model is to provide the foldable ladder with a casing that would enclose other ladder parts when the ladder is folded to add comfort to the user carrying it.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS These objects and advantages of the subject utility model would become apparent upon reading the following description taken in conjunction with the appended drawings wherein:
FIG. 1 is the exterior view of the ladder when it is folded.
FIG. 2 is a front view of the ladder showing the interior when the ladder is folded.
FIG. 3 is a side view of the ladder showing the interior when the ladder is folded. Ladder post was not included in this drawing to avoid crowding and for better presentation of ladder posts and ladder steps.
FIG. 4 and FIG. 5 is an enlargement view of the upper part and the lower part of the ladder.
FIG. 6 is a top view of ladder pads.
FIG. 7 is a side view of ladder pads.
FIG. 8 is a three-dimensional view of ladder pads.
FIG. 9 is a top view and cross-sectional view of FIG. 2 taken along line
"A-A".
FIG. 10 is the side view of ladder posts connector.
FIG. 11 is the front view of the ladder posts connector.
FIG. 12 and FIG. 13 are the simulation view of opening the ladder.
FIG. 14 is a front perspective view of an open and operational ladder.
FIG 15 is a top view of ladder steps. FIG. 16 is a front view of ladder steps.
FIG. 17 is a side view of an open and operational ladder.
FIG. 18 is a side view of a single ladder post.
FIG. 19 is an enlargement view and side view of ladder post when it is perpendicular with the ladder steps.
FIG. 20 is an enlargement view and side view of ladder posts when it is ready for use.
FIG. 21 is an enlargement view at the lower part of the ladder where the ladder post is connected with the ladder casing.
FIG. 22 is a fragmentary side view at the bottom of the ladder where the ladder post and the ladder cover are connected when the ladder is open.
FIG. 23 is a cross-sectional bottom view of FIG. 21.
FIG. 24 is an enlargement view at the lower part of the ladder where the ladder post is connected with the ladder casing.
Fig. 25 is a side view of the metal plate that connects the back ladder post and the back ladder cover.
FIG. 26 is a cross-sectional bottom view of FIG. 24.
FIG. 27 is a three-dimensional view of an open and operational ladder.
DETAILED DESCRIPTION OF THE UTILITY MODEL
Referring now to the drawings in detail, there is shown in FIG. 1 that foldable ladder with foldable steps generally designated as (35). Referring to FIG. 1, FIG. 2 and FIG. 3, (1) is a ladder casing and (2) is a casing handle. (3) are ladder pads which are connected with ladder posts (5) and (7) are ladder pads which is connected with ladder posts (4). (6) are ladder steps and (14) is a L shaped metal attached at ladder posts (4) to prevent ladder steps (6) from sliding down since it can freely slide.
Referring to FIG. 4, FIG. 5, FIG. 6, FIG. 7 and FIG. 8, (8) is a needle roller bearing provided at the hole of ladder posts (5). (9) and (10) are rods that connect ladder posts (5) to other ladder parts. Connector rods (10) connect ladder posts (5) with ladder pads (3). Connector rods (9) and (10) needs to be perfectly perpendicular with ladder posts (5) that's why bearing (8) is provided to minimize friction for ladder posts' (5) movement.
Referring to FIG. 9, FIG. 10 and FIG. 11, (11) is a connector which connects ladder posts (5) to ladder posts (4). Connector (11) consist three rods, connector rods (9) and (12). Connector rods (12) are the rods directly connected to ladder posts (4). (13) is a rectangular metal that helps hold connector rods (9) and (12) together.
Referring to FIG. 12 and FIG.13. When opening the subject ladder (35), casing (1) will be divided into two. These would be half casing (15) and half casing (16). (17) is a part of half casing (15) that serves as lock. Lock (17) would fit inside the provided area of half casing (16) to keep the ladder close. To open the subject ladder (35), half casing would be lifted upwards then pulled to the left.
Referring to FIG. 14, when the ladder is open and ready for use, ladder steps (6) is perpendicular with ladder posts (5) and parallel to the ground.
Referring to FIG. 15 and FIG. 16, ladder posts (5) consists of rods (18), (19), (20) and (21). Ladder steps (6) consist of rods (22), (23), (24) and (25). (26) is a part of ladder posts (5) located between ladder posts' rods (18) and (19) and between ladder posts' rods (20) and (21) that serves as ladder steps' (6) carrier. (27) are rod bumps on ladder step rods (22) and (24). These rod bumps (27) are intended to fit in ladder steps' carrier (26) to improve stability when the ladder is operational. Rod bumps (27) prevent ladder posts (5) from sliding at ladder steps (6) sideward.
Referring to FIG. 17, in this view the ladder is fully open and half casing (15) was divided into two resulting for quarter casing (30) and (31). (33) is a casing holder rod that holds quarter casing (30) and (31) together. (29) is a casing holder rod that holds quarter casing (31) and ladder posts (4) together. (28) is a casing holder rod that holds quarter casing (30) and ladder posts (5) together. Connector rods (12) serve as a hinge for ladder posts (4) and ladder posts (5). Ladder posts palm (7) is in fixed angle with ladder posts (4) to prevent the subject ladder from sliding forwards and backwards. (32) is a part of ladder posts' (5) that serves as blocker of casing holder rod (28).
Since only one side of the subject ladder is shown in this figure and it is symmetrical to the other side, same structure would apply to the other side.
Referring to FIG. 18, FIG. 19 and FIG. 20, there is a space from ladder steps' rod (23) to ladder posts' rod (19) and to ladder posts' rod (20). This space is provided to make it possible for the subject ladder to move at desired angle.
Referring to FIG. 21 and FIG. 22, from the subject ladder's vertical position, it should fall downwards to fully open where in this scenario casing holder rod (28) slides upwards until it hits blocker rod (32) and prevented from further sliding. This will also stop the subject ladder from opening further.
Referring to FIG. 23, FIG. 24, FIG. 25 and FIG. 26, (34) are rectangular flat metals connected to quarter casing (30) and quarter casing (31). Flat metals (34) prevents quarter casings (30) and (31) from moving side to side. Metal plates (34) are attached to casing holder rod (28) and casing holder rod (29) and serve as their support. (35) is a rod with a hole in the middle provided for casing holder rod (29). Rods with a hole (35) are fixedly attached to ladder posts (4).
Since only one side of the subject ladder is shown in this figures and it is symmetrical to the other side, same structure would apply to the other side.
Referring to FIG. 27, when the ladder is fully open and operational, the ladder casing (1) would be divided into four quarter casing, the ladder steps (6) would be parallel to the ground and ladder posts (5) would form angle with ladder posts (4).

Claims

1. A foldable ladder with foldable steps (6) comprising: a ladder step (6) consisting of rods parallel with each other; and a ladder post (5) consisting of rods parallel with each other, wherein the rods of ladder posts (5) alternates with the rods of ladder steps (6), and wherein the ladder steps (6) and the ladder posts (5) are not screwed together therefore ladder steps (6) can freely slide at the ladder posts (5) giving the ladder steps (6) it's folding ability.
2. The folder ladder according to claim 1, further comprising a casing that is attached to at least the ladder posts (5) wherein the casing encloses other parts of the ladder when the ladder is closed and wherein the ladder is divided when the ladder is opened.
PCT/IB2016/057333 2015-12-04 2016-12-02 Foldable ladder with foldable steps WO2017093978A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PH22015000720U PH22015000720Y1 (en) 2015-12-04 2015-12-04 A foldable ladder
PH22015000720 2015-12-04

Publications (1)

Publication Number Publication Date
WO2017093978A1 true WO2017093978A1 (en) 2017-06-08

Family

ID=57681684

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2016/057333 WO2017093978A1 (en) 2015-12-04 2016-12-02 Foldable ladder with foldable steps

Country Status (2)

Country Link
PH (1) PH22015000720Y1 (en)
WO (1) WO2017093978A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD966556S1 (en) 2019-12-13 2022-10-11 Murphy Ladder Llc Ladder

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1215455A (en) * 1914-09-03 1917-02-13 William E Wine Car-ladder.
US1280456A (en) * 1916-05-13 1918-10-01 William A Harmon Ladder.
JPS5358737U (en) * 1976-10-15 1978-05-19
JPS594000U (en) * 1982-06-30 1984-01-11 四国化成工業株式会社 A foldable ladder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1215455A (en) * 1914-09-03 1917-02-13 William E Wine Car-ladder.
US1280456A (en) * 1916-05-13 1918-10-01 William A Harmon Ladder.
JPS5358737U (en) * 1976-10-15 1978-05-19
JPS594000U (en) * 1982-06-30 1984-01-11 四国化成工業株式会社 A foldable ladder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD966556S1 (en) 2019-12-13 2022-10-11 Murphy Ladder Llc Ladder

Also Published As

Publication number Publication date
PH22015000720U1 (en) 2018-10-19
PH22015000720Y1 (en) 2018-10-19

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