US20190211572A1 - Horizontal supporter for scaffolds - Google Patents

Horizontal supporter for scaffolds Download PDF

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Publication number
US20190211572A1
US20190211572A1 US15/953,241 US201815953241A US2019211572A1 US 20190211572 A1 US20190211572 A1 US 20190211572A1 US 201815953241 A US201815953241 A US 201815953241A US 2019211572 A1 US2019211572 A1 US 2019211572A1
Authority
US
United States
Prior art keywords
pressing piece
horizontal supporter
supporter
piece
locking
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US15/953,241
Other languages
English (en)
Inventor
Jongduk YANG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DKS Global Co Ltd
Original Assignee
DKS Global Co Ltd
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 DKS Global Co Ltd filed Critical DKS Global Co Ltd
Assigned to D.K.S. GLOBAL CO., LTD. reassignment D.K.S. GLOBAL CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: YANG, JONGDUK
Publication of US20190211572A1 publication Critical patent/US20190211572A1/en
Abandoned legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/30—Scaffolding bars or members with non-detachably fixed coupling elements
    • E04G7/302—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members
    • E04G7/303—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are only fixed at one of the bars or members to connect
    • E04G7/304—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are only fixed at one of the bars or members to connect with tying means for connecting the bars or members
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/30—Scaffolding bars or members with non-detachably fixed coupling elements
    • E04G7/302—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members
    • E04G7/306—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are fixed at several bars or members to connect
    • E04G7/307—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are fixed at several bars or members to connect with tying means for connecting the bars or members
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/30—Scaffolding bars or members with non-detachably fixed coupling elements
    • E04G7/32—Scaffolding bars or members with non-detachably fixed coupling elements with coupling elements using wedges
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/30—Scaffolding bars or members with non-detachably fixed coupling elements
    • E04G7/34—Scaffolding bars or members with non-detachably fixed coupling elements with coupling elements using positive engagement, e.g. hooks or pins

Definitions

  • the present invention relates to a horizontal supporter for scaffolds, and more particularly to a horizontal supporter for scaffolds that is capable of continuously functioning properly even after being used for a long period of time.
  • a scaffold installed to allow workers to access buildings during the construction of various kinds of buildings or during the maintenance of previously constructed buildings includes several standardized parts that can be disassembled and reassembled, such as a vertical supporter having connection pins formed at multiple stages, a horizontal supporter configured to be coupled and fixed between the connection pins of the vertical supporter by catching members provided at opposite ends of a pipe, and a stool fixedly installed on the horizontal supporter.
  • the horizontal supporter has a locking function, by which the horizontal supporter is prevented from being separated from the vertical supporter after being coupled to the vertical supporter, whereby the safety of the scaffold is achieved.
  • the horizontal supporter for scaffolds is configured such that a pressing piece 106 and a locking piece 108 , disposed in a catching member 100 in the state in which an inclined surface 102 of the pressing piece 106 and an inclined surface 104 of the locking piece 108 are merely in contact with each other, remain unlocked due to the elasticity of an elastic body 110 and such that, when the catching member 100 is coupled into a connection hole 116 formed in a connection piece 114 of a vertical supporter 112 and the pressing piece 106 is then forcibly moved downward in order to use the horizontal supporter, a locking part 118 of the locking piece 108 protrudes from the catching member 100 due to the inclined surfaces 102 and 104 , whereby the locking part 118 is caught by the connection piece 114 . As a result, the horizontal supporter is locked.
  • the horizontal supporter for scaffolds functions properly during early use of the horizontal supporter.
  • the pressing piece 106 which is merely in contact with the locking piece 108 through the inclined surfaces 102 and 104 for locking, moves downward due to the weight thereof, as shown in FIG. 2 , whereby the pressing piece 106 enters a locked state, which is undesirable.
  • the pressing piece 106 disposed in each of the left and right catching members 100 must be moved upward such that the locking piece 108 is in an unlocked state, and then the catching members 100 must be coupled into the connection hole 116 formed in the connection piece 114 of the vertical supporter 112 , which is very troublesome and takes a lot of time. Furthermore, when the pressing piece 106 malfunctions, the pressing piece 106 is discarded without being re-cycled, which leads to financial loss due to a reduction in the lifespan of the horizontal supporter.
  • the present invention has been made in view of the above problems, and it is an object of the present invention to provide a horizontal supporter for scaffolds that is capable of preventing a pressing piece from moving downward due to the weight of the pressing piece even when the elasticity of an elastic body is reduced during the use of the horizontal supporter or even when a gap is formed between related parts due to wear of the related parts.
  • a horizontal supporter for scaffolds configured such that, when a pressing piece is moved upward in order to unlock a locking piece, the pressing piece and the locking piece are deeply caught by each other due to engagement between a catching recess and a latching projection, whereby the pressing piece remains moved upward, wherein, even when the elasticity of an elastic body is reduced due to repetitive use of the horizontal supporter or even when a gap is formed between related parts due to wear of the related parts, it is possible to prevent the pressing piece from moving downward due to the weight of the pressing piece.
  • FIG. 1 is a sectional view showing a conventional horizontal supporter for scaffolds
  • FIG. 2 is a sectional views showing the malfunction of the conventional horizontal supporter for scaffolds
  • FIG. 3 is a perspective view showing a horizontal supporter for scaffolds according to the present invention.
  • FIG. 4 is a perspective view showing a principal part of the horizontal supporter for scaffolds according to the present invention.
  • FIG. 5 is an exploded perspective view showing the principal part of the horizontal supporter for scaffolds according to the present invention.
  • FIG. 6 is a sectional view showing the principal part of the horizontal supporter for scaffolds according to the present invention before the horizontal supporter is coupled to a vertical supporter;
  • FIG. 7 is a sectional view showing the principal part of the horizontal supporter for scaffolds according to the present invention when the horizontal supporter is coupled to the vertical supporter;
  • FIG. 8 is a sectional view showing the principal part of the horizontal supporter for scaffolds according to the present invention when the horizontal supporter is locked after the horizontal supporter is coupled to the vertical supporter;
  • FIG. 9 is a front view showing the state in which the horizontal supporter for scaffolds according to the present invention is used.
  • FIG. 3 is a perspective view showing a horizontal supporter for scaffolds according to the present invention
  • FIG. 4 is a perspective view showing a principal part of the horizontal supporter for scaffolds according to the present invention
  • FIG. 5 is an exploded perspective view showing the principal part of the horizontal supporter for scaffolds according to the present invention.
  • the horizontal supporter for scaffolds according to the present invention is configured such that catching members 14 are formed at opposite ends of a pipe 12 having a predetermined length by welding so as to protrude downward and such that a pressing piece 16 , a locking piece 18 , and an elastic body 20 are coupled into each of the left and right catching members 14 .
  • the pipe 12 is provided in the opposite ends thereof with coupling recesses 22 , into which the catching members 14 are coupled. After the catching members 14 are coupled into the respective coupling recesses 22 , the catching members 14 are fixed to the respective coupling recesses 22 by welding.
  • Each of the catching members 14 is configured such that an insertion part 30 having therein a second operation chamber 28 protrudes from one side of the upper part of a catching part 26 having a first operation chamber 24 formed therethrough in the vertical direction, wherein the second operation chamber 28 is configured to communicate with the first operation chamber 24 .
  • the insertion part 30 is inserted into the pipe 12 , and the upper part of the catching part 26 is coupled into a corresponding one of the coupling recesses 22 formed in the pipe 12 . In this state, the insertion part 30 and the upper part of the catching part 26 are fixed to the pipe 12 by welding.
  • the pressing piece 16 is configured such that a deep catching recess 32 is formed in the central part of one side of a main body, which is long in the vertical direction, and such that an inclined surface 34 , which is inclined downward toward the other side of the main body, is formed under the catching recess 32 .
  • the pressing piece 16 is coupled into the first operation chamber 24 of a corresponding one of the catching members 14 so as to be slidable upward and downward along the first operation chamber 24 .
  • the locking piece 18 is configured such that a main body 42 is provided at the lower part of one side thereof with a catching protrusion 36 and is provided at the upper part and the lower part of the other side thereof with a latching projection 38 and a first inclined surface 40 , which is inclined downward toward the other side thereof, and such that a locking part 46 having a second inclined surface 44 extends downward from the main body 42 in the state in which a step is formed between the first inclined surface 40 and the second inclined surface 44 .
  • the elastic body 20 is made of a material that exhibits elasticity and restoring force, such as urethane foam. Before the coupling of the locking piece 18 into the second operation chamber 28 formed in a corresponding one of the catching members 14 , the elastic body 20 is coupled into the second operation chamber 28 in order to elastically support the locking piece 18 in the direction opposite the locking direction, i.e. toward the pressing piece 16 , after the locking piece 18 is coupled into the second operation chamber 28 .
  • the horizontal supporter for scaffolds according to the present invention has an effect in that, even when the elasticity of the elastic body is reduced due to repeated use of the horizontal supporter for scaffolds or even when a gap is formed between the related parts due to wear of the related parts, it is possible to prevent the pressing piece from moving downward due to the weight of the pressing piece in the unlocked state of the pressing piece, whereby it is possible to eliminate trouble in use due to malfunction of the pressing piece whenever the horizontal supporter for scaffolds according to the present invention is used and to reduce financial loss due to a reduction in the lifespan of the horizontal supporter for scaffolds according to the present invention.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Ladders (AREA)
US15/953,241 2018-01-10 2018-04-13 Horizontal supporter for scaffolds Abandoned US20190211572A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2018-0003169 2018-01-10
KR1020180003169A KR102041404B1 (ko) 2018-01-10 2018-01-10 비계용 수평지지대

Publications (1)

Publication Number Publication Date
US20190211572A1 true US20190211572A1 (en) 2019-07-11

Family

ID=67140165

Family Applications (1)

Application Number Title Priority Date Filing Date
US15/953,241 Abandoned US20190211572A1 (en) 2018-01-10 2018-04-13 Horizontal supporter for scaffolds

Country Status (2)

Country Link
US (1) US20190211572A1 (ko)
KR (1) KR102041404B1 (ko)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD915622S1 (en) * 2018-01-10 2021-04-06 Nikken Lease Kogyo Co., Ltd. Locking member of horizontal supporter for scaffolds
US20230049059A1 (en) * 2021-08-12 2023-02-16 ScaffoldMart Collapsible utility scaffold

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5264008B1 (ja) * 2013-01-31 2013-08-14 日建リース工業株式会社 仮設足場用の連結装置
WO2018138873A1 (ja) * 2017-01-27 2018-08-02 日建リース工業株式会社 仮設足場用の連結具

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101398638B1 (ko) * 2013-03-15 2014-05-27 주식회사 디케이에스코리아 비계용 수평연결대

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5264008B1 (ja) * 2013-01-31 2013-08-14 日建リース工業株式会社 仮設足場用の連結装置
WO2018138873A1 (ja) * 2017-01-27 2018-08-02 日建リース工業株式会社 仮設足場用の連結具

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD915622S1 (en) * 2018-01-10 2021-04-06 Nikken Lease Kogyo Co., Ltd. Locking member of horizontal supporter for scaffolds
US20230049059A1 (en) * 2021-08-12 2023-02-16 ScaffoldMart Collapsible utility scaffold
US11846107B2 (en) * 2021-08-12 2023-12-19 Grady F. Smith & Co., Inc. Collapsible utility scaffold
US20240110395A1 (en) * 2021-08-12 2024-04-04 Grady F. Smith & Co., Inc. D/B/A Scaffoldmart Collapsible Utility Scaffold

Also Published As

Publication number Publication date
KR102041404B1 (ko) 2019-11-06
KR20190085262A (ko) 2019-07-18

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Legal Events

Date Code Title Description
AS Assignment

Owner name: D.K.S. GLOBAL CO., LTD., KOREA, REPUBLIC OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:YANG, JONGDUK;REEL/FRAME:045539/0625

Effective date: 20180402

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION