AU2019101275A4

AU2019101275A4 - Ladder Used For Building Structure

Info

Publication number: AU2019101275A4
Application number: AU2019101275A
Authority: AU
Inventors: Siyu QIAN
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-21
Filing date: 2019-10-22
Publication date: 2020-01-23
Anticipated expiration: 2027-10-22
Also published as: WO2021031228A1; CN110454078A; CN110454078B

Abstract

A ladder used for a building structure includes a main member, a secondary member, a connecting rod and a fixing rod. The main member includes a plurality of horizontal rungs, a pair of first rails symmetrically fixed with two opposite ends of the horizontal rung, and a 5 groove formed at a side of the first rail. The secondary member also includes a plurality of horizontal rungs and a pair of second rails symmetrically fixed with two opposite ends of the horizontal rung. The amount of the horizontal rung is measured according to actual usage of the height of the ladder. The second rail includes a fixing block formed on its bottom at a side near the main member to fix with the groove. One end of the connecting rod is rotatably 10 connected with the bottom of the first rail, and the other end of the connecting rod is slidably connected with the bottom of the second rail. One portion of the fixing rod is hinged with the top of the first rail, and the other portion can be clamped with the top of the second rail. The structure of the present disclosure can be optionally exchanged between a herringbone ladder and a linear ladder, and have a good structural strength while obtaining a higher height than an 15 original height of the herringbone ladder when it is exchanged as the linear ladder. 13 5 FIG. 1

Description

FIG. 1

Our Ref: 88771nno P/00/009 Regulation 3.2 AUSTRALIA Patents Act 1990

INNOVATION SPECIFICATION FOR AN INVENTION ENTITLED

Invention title: Ladder Used For Building Structure

Name of Applicant: QIAN, Siyu

Address for Service A.P.T. Patent and Trade Mark Attorneys PO Box 833 Blackwood, S.A. 5051

The invention is described in the following statement:

LADDER USED FOR BUILDING STRUCTURE BACKGROUND

1. Technical Field

[0001] The present disclosure generally relates to construction tools for building

structures field, and especially relates to a ladder used for a building structure.

2. Description of Related Art

[0002] It is well known that ladders are widely used in construction projects, especially

herringbone ladders. The herringbone ladder, as a kind of climbing tool used for decoration and

other work in a space above a plane, generally includes a front ladder member and a rear ladder

member rotatably connected with the front ladder member. An isosceles triangle is formed

between the front and rear ladder members and the ground during using the ladder so that it is

looked like a "person", thereby the herringbone ladder is so-called. Because the front ladder

member can rotatably connected with the rear ladder member so that the herringbone ladder can

be folded, thereby it has the advantages of minimize space to occupy, easy to receive, light in

weight and convenient movement. So, such herringbone ladder can be conveniently used via

expanding out the front ladder member and the rear ladder member in a herringbone-shape

without leaning on other objects. In addition, for a bottom surface of an apparatus can't meet

the conditions of the herringbone ladder in place, the herringbone ladder can also be folded into a

linear ladder to be used. However, in the market, the herringbone ladder, when it can be folded

to be used as the linear ladder, mostly has a same height as its original height, even the height

beyond the original height, thereby a poor fixation effect can be obtained.

SUMMARY

[00031 The technical problems to be solved: in view of the shortcomings of the related art,

the present disclosure relates to a ladder used for a building structure which can be optionally

exchanged between a herringbone ladder and a linear ladder, and have a good structural strength

while obtaining a higher height than an original height of the herringbone ladder when it is

exchanged as the linear ladder.

[0004] The technical solution adopted for solving technical problems of the present

disclosure is:

a ladder used for a building structure includes a main member, a secondary

member, a connecting rod and a fixing rod. The main member includes a plurality of horizontal

rungs, a pair of first rails symmetrically fixed with two opposite ends of the horizontal rung, and

a groove formed at a side of the first rail. The secondary member also includes a plurality of

horizontal rungs and a pair of second rails symmetrically fixed with two opposite ends of the

horizontal rung. The amount of the horizontal rung is measured according to actual usage of the

height of the ladder. The second rail includes a fixing block formed on its bottom at a side near

the main member to fix with the groove. One end of the connecting rod is rotatably connected

with the bottom of the first rail, and the other end of the connecting rod is slidably connected with

the bottom of the second rail. One portion of the fixing rod is hinged with the top of the first

rail, and the other portion can be clamped with the top of the second rail.

[0005] Wherein the second rail includes a sliding rail axially formed thereon, and the connecting rod includes a sliding portion slidably connected with the sliding rail.

[0006] Wherein the sliding rail includes an upper clamping slot and a lower clamping

slot respectively formed on two opposite ends thereof so that the sliding portion can be clamped

with the upper clamping slot and the lower clamping slot, respectively.

[0007] Wherein the groove includes a first groove and a second groove, with the bottom

of the first groove being connected with the top of the second groove, the fixing block can be

clamped into the first groove and slide in the first groove and the second groove.

[0008] Wherein the ladder further includes a fixing member, a fixing hole is formed on

the bottom of the first groove and a second fixing hole is formed on an end of the sliding rail

near the lower clamping slot so that the fixing member can fix with the first fixing hole and the

second fixing hole, respectively.

[0009] The present disclosure provides the advantages as below.

[0010] The structure of the present disclosure can be optionally exchanged between a

herringbone ladder and a linear ladder, and have a good structural strength while obtaining a

higher height than an original height of the herringbone ladder when it is exchanged as the linear

ladder.

BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Many aspects of the embodiments can be better understood with reference to the

following drawings. The components in the drawings are not necessarily drawn to scale, the

emphasis instead being placed upon clearly illustrating the principles of the embodiments.

Moreover, in the drawings, like reference numerals designate corresponding parts throughout the

several views.

[0012] FIG. 1 is a schematic view of the ladder used for a building structure in

accordance with an exemplary embodiment, showing the ladder as a linear ladder.

[0013] FIG. 2 is another schematic view of the ladder used for a building structure of FIG.

1, but showing the ladder expandable as a herringbone ladder.

[0014] FIG. 3 is a partial enlarged schematic view of part A of the ladder of FIG. 2.

[0015] FIG. 4 is a cross-sectional view of the ladder along line a-a of FIG. 3.

[00161 FIG. 5 is a partial enlarged schematic view of part B of the ladder of FIG. 2

[00171 FIG. 6 is a cross-sectional view of the ladder along line b-b of FIG. 5.

[00181 FIG. 7 is a schematic view of a connecting rod of the ladder of FIG. 1.

[0019] The element labels according to the exemplary embodiment of the present

disclosure shown as below:

main member 1, first rail 11, groove 111, first groove portion 1111, second groove

portion 1112, first fixing hole 12, secondary member 2, second rail 21, fixing block 211,

slidingrail212, upper clamping slot 2121, lower clamping slot 2122, second fixing hole 22,

horizontal rung 3, fixingrod4, connectingrod5, sliding portion 51, fixingmember6.

DETAILED DESCRIPTION

[0020] The disclosure is illustrated by way of example and not by way of limitation in the

figures of the accompanying drawings, in which like reference numerals indicate similar elements.

[0021] Referring to FIGS. 1-7, a ladder used for a building structure in accordance with

an exemplary embodiment of the present disclosure is provided. The ladder includes a main

member 1, a secondary member 2, a fixing rod 4 and a connecting rod 5. The main member 1

includes a plurality of horizontal rungs 3, a pair of first rails11 symmetrically fixed with two

opposite ends of the horizontal rung 3, and a groove 111 formed at a side of the first rail 11.

The secondary member 2 also includes a plurality of horizontal rungs 3 and a pair of second rails

21 symmetrically fixed with two opposite ends of the horizontal rung 3. The amount of the

horizontal rung 3 is measured according to actual usage of the height of the ladder. The second

rail 21 includes a fixing block 211 formed on its bottom at a side near the main member 1 to fix

with the groove 111. One end of the connecting rod 5 is rotatably connected with the bottom of

the first rail 11, and the other end of the connecting rod 5 is slidably connected with the bottom of

the second rail 21. One portion of the fixing rod 4 is hinged with the top of the first rail 11, and

the other portion can be clamped with the top of the second rail 21.

[0022] Based on the above solution, the ladder of the present disclosure used in

construction projects generally has two forms: a herringbone ladder and a linear ladder. When

the fixing rod 4 is tightly fixed with the top of the second rail 21, one end of the connecting rod 5

far away from the first rail 11 is slid on the second rail 21 until the connecting rod 5 is parallel to

the ground, the ladder is used as a herringbone ladder. While, when the fixing rod 4 is

disengaged from the second rail 21 and turns to a same axial direction of the first rail 11, and then, the secondary member 2 is moved towards the main member 1. In this condition, due to the action of the connecting rod 5, the secondary member 2 will be lifted, and the fixing block 211 at the bottom of the secondary member 2 will be embedded into the groove 111, at this time, the ladder is used as a linear ladder. In this way, the ladder used for a building structure can be optionally exchanged between the herringbone ladder and the linear ladder, and obtaining a higher height than an original height of the herringbone ladder when it is exchanged as the linear ladder.

[00231 Referring to FIG. 5, FIG. 6 and FIG. 7, the second rail 21 includes a sliding rail

212 axially formed thereon, and the connecting rod 5 includes a sliding portion 51 slidably

connected with the sliding rail 212.

[0024] Furthermore, the sliding rail 212 includes an upper clamping slot 2121 and a

lower clamping slot 2122 respectively formed on two opposite ends thereof so that the sliding

portion 51 can be clamped with the upper clamping slot 2121 and the lower clamping slot 2122,

respectively. When the sliding portion 51 is clamped with the upper clamping slot 2121, the

ladder is used as the linear ladder. While, when the sliding portion 51 is clamped with the lower

clamping slot 2122, the ladder is used as the herringbone ladder.

[0025] Referring to FIG. 3 and FIG. 4, the groove 111 includes a first groove 1111 and a

second groove 1112. The bottom of the first groove 1111 is connected with the top of the

second groove 1112. The fixing block 211 can be clamped into the first groove 1111 and slide

in the first groove 1111 and the second groove 1112. When the bottom of the fixing block 211 is attached onto the bottom of the second groove 1112, the ladder is used as the linear ladder.

[00261 In order to obtain a good fixation effect during folding the herringbone ladder, the

ladder used for the building structure further includes a fixing member 6. A fixing hole 12 is

formed on the bottom of the first groove 1111 and a second fixing hole 2 is formed on an end of

the sliding rail 212 near the lower clamping slot 2122, at this time, the fixing member 6 can fix

with the second fixing hole 22. When the ladder is used as the linear ladder, the fixing member

6 is fixed with the first fixing hole 12. In addition, under the action of the fixing member 6, the

secondary member 2 is firmly attached to the main member 1, which can increase thefixation

strength of the linear ladder. When the ladder is used as the herringbone ladder, the fixing

member 6 is fixed with the second fixing hole 22. Furthermore, under the action of the fixing

member 6, the sliding portion 51 of the connecting rod 5 is firmly fixed with the lower clamping

slot 2122, thereby the fixation strength of the herringbone ladder can be increased.

[00271 It needs to be noted that, the terms shown in the specification are only intended to

describe embodiments, but not intended to by way of the limitation of the present disclosure.

Similarly, the terms such as "a", "an", "one" and "the" and the like shown in the specification are

only used to describe at least one, but not indicated that the elements of the present disclosure is

important or represented the amount of the elements or not denoted a limit of quantity.

Furthermore, it can be understood, the terms "include" and/or "consist of' used in the description

of the present disclosure, are only intended to indicate the presence of features, steps, operations,

devices, components and/or a combination thereof, and the like means that an element or an item in front of a word is intended to cover the elements or objects enumerated in the following words, and to be equivalent, without excluding other elements or articles.

[00281 In the present disclosure, except where specifically otherwise illustrated or limited,

the relative arrangement of elements and steps, numerical expressions and values described in the

specification of the present disclosure are not by way of the limitation of the present disclosure.

At the same time, it should be understood that, for the purpose of convenient description, the

dimensions of the elements shown in the figures of the accompanying drawings of the present

disclosure are not drawn in accordance with actual proportions. The technologies, methods and

equipments obtained by one of ordinary skill in the related art may not be discussed in detail.

But where appropriate, the technologies, methods and equipments should be considered within

the protection scope of the present disclosure. All exemplary embodiments of the present

disclosure described in the specification, any specific values should be interpreted as merely an

exemplary, but not by way of the limitation of the present disclosure. So, the values shown in

other exemplary embodiments can be different. It should be noted that similar labels and letters

are represented similar items in the figures of the accompanying drawings of the present

disclosure, thereby once an item is defined in one drawing of the present disclosure, it does not

need to be further discussed in subsequent drawings.

[0029] In the description of the present disclosure, it needs to be understood that the

terms mentioned below: "front", "back", "upper", "below", "left", "right", "transverse",

"longitudinal", "vertical", "horizontal", "top", "bottom", etc, are shown in the specification of the present disclosure. The indicated orientation or position of the terms shown in the detailed description is based on orientation or position shown in the figures of the accompanying drawings of the present disclosure, which is only to easily simplify the description of the present disclosure, but not indicated that the devices or elements of the present disclosure should have a particular orientation or should be designed and operated in a particular orientation. So the terms illustrated in the detail description are not by way of the limitation of the present disclosure.

The indicated orientation or position of the terms such as "inner", "outer", "inside", "outside"

shown in the detailed description is referred to inside and outside relative to the contour of the

elements themselves shown in the figures of the accompanying drawings of the present

disclosure.

[00301 In order to the purpose of convenient description, the terms such as "on the top

of', "above", "on the top surface" and "upper", etc, are shown in the specification of the present

disclosure to describe spatial position of an element or a feature shown in the drawings in relation

to other devices or features. It can be understood that space relative terms are intended to

include different directions in use or operation in addition to the directions of the device

described in the drawings. For example, the features shown in the drawings are inverted, the

features described as "on the top of other devices or elements" or "above other devices or

elements" will be positioned as "on the bottom of other devices or elements" or "below other

devices or elements". So, the exemplary term "on the top of' can include "above" and "below"

two directions. Furthermore, the features can also be positioned in different ways (rotated by 90 degrees or in other directions) and interpret the relative description of the space shown in the description of the present disclosure.

[00311 In addition, it needs to be understood that the terms such as "first" and "second"

shown in the specification are only used to describe, but not indicated that the elements of the

present disclosure is important or represented the amount of the elements. That is, the features

limited by the terms of "first" and "second" may explicitly or implicitly include one or more

features. So the terms illustrated in the detail description are not by way of the limitation of the

present disclosure.

[0032] Although the features and elements of the present disclosure are described as

embodiments in particular combinations, each feature or element can be used alone or in other

various combinations within the principles of the present disclosure to the full extent indicated by

the broad general meaning of the terms in which the appended claims are expressed.

Claims

CLAIMS What is claimed is:

1. A ladder used for a building structure comprising:

a main member (1) comprising a plurality of horizontal rungs (3), a pair of first rails (11)

symmetrically fixed with two opposite ends of the horizontal rung (3), and a groove (111)

formed at a side of the first rail (11);

a secondary member (2) also comprising a plurality of horizontal rungs (3) and a pair of

second rails (21) symmetrically fixed with two opposite ends of the horizontal rung (3), the

second rail (2) comprising a fixing block (211) formed on its bottom at a side near the main

member (1) to fix with the groove (111);

a connecting rod (5), with one end thereof rotatably being connected with the bottom of the

first rail (1), and the other end of the connecting rod slidably being connected with the bottom of

the second rail (2);

a fixing rod (4), with one portion thereof being hinged with the top of the first rail (1), and

the other portion thereof being clamped with the top of the second rail (2).

2. The ladder used for a building structure as claimed in claim 1, wherein the second rail (21)

comprises a sliding rail (212) axially formed thereon, and the connecting rod (5) comprises a

sliding portion (51) slidably connected with the sliding rail (212).

3. The ladder used for a building structure as claimed in claim 2, wherein the sliding rail (212)

comprises an upper clamping slot (2121) and a lower clamping slot (2122) respectively formed on two opposite ends thereof so that the sliding portion (51) can be clamped with the upper clamping slot (2121) and the lower clamping slot (2122), respectively.

4. The ladder used for a building structure as claimed in claim 1, wherein the groove (111)

comprises a first groove (1111) and a second groove (1112), with the bottom of the first

groove (1111) being connected with the top of the second groove (1112), the fixing block

(211) can be clamped into the first groove (1111) and slide in the first groove (1111) and the

second groove (1112).

5. The ladder used for a building structure as claimed in claim 4, wherein the ladder further

comprises a fixing member (6), a fixing hole (112) is formed on the bottom of the first

groove (1111) and a second fixing hole (22) is formed on an end of the sliding rail (212)

near the lower clamping slot (2122) so that the fixing member (6) can fix with thefirst fixing

hole (12) and the second fixing hole (22), respectively.