WO2005052278A1

WO2005052278A1 - Guardrail for preventing fall-off

Info

Publication number: WO2005052278A1
Application number: PCT/KR2004/002996
Authority: WO
Inventors: Youn-Bok Lee
Original assignee: Youn-Bok Lee
Priority date: 2003-11-28
Filing date: 2004-11-19
Publication date: 2005-06-09
Also published as: KR200342614Y1

Abstract

The present invention generally relates to a guardrail for preventing fall-off, and a guardrail installed on a balcony or stairs comprises: supports installed on both ends in an upper part of the guardrail, respectively; round-shaped supporting poles being opposite and fixed, respectively, to be protruded toward an inner side on one side of the supports; a one-way rotational member consisting of a body portion where a hollow insertion hole is formed to be inserted into the supporting pole of the one side and a reverse rotation prevention portion formed on one side of the body portion, and which rotates in one direction only without being rotated in reverse direction; a two-way rotational member rotating in both ways by forming a hollow insertion hole in a body portion, so that the member can be inserted into the supporting pole of the other side to be opposite to the one-way rotational member; and a rotational bar in which both ends thereof are integratedly fixed to an opposite side where the one-way and two-way rotational members are faced with each other. Thus, in the guardrail for preventing fall-off in accordance with the present invention, it can prevent fall-off to the opposite side.

Description

Description GUARDRAIL FOR PREVENTING FALL-OFF Technical Field

[1] The present invention generaly relates to a guardrail for preventing fal-off, and more specifically, to a guardrail for preventing fal-off which can prevent a child from faung off over an opposite side when the child holds the highest bar by stepping on a bwer bar of a babony. Background Art

[2] Generaly, balconies of apartments are instated in minimal height to prevent fal- off to a minimum.

[3] Like above, veranda guardrails are instated in minimal height, so that people can raise flowers while taking a rest and looking out the outside view.

[4] Like adults, children can step on the invisible guardrail of the veranda to bok out the open outside view on the veranda, and may see by hanging on the highest bar. In this case, an accident of children faung off outside the guardrail occurs frequently.

[5] When it comes to an adult case, he or she may slip and fal on the floor of the babony while leaning against the babony guardrail and a portion of the body such as the hand may be contacted with the highest bar of the guardrail faung off outside the babony.

[6] In case of a guardrail for preventing fal-off in the prior art, a guardrail of the veranda is bw in height. So, in order to prevent a risk of fal-off, a structure of assembKng/instaling a guardrail for preventing fal-off up to the ceffing in an upper part of an existing veranda guardrail has been suggested accessorfly.

[7] However, the above structure has a problem of bsing the original purposes of the babony such as raising flowers while boking out the open outside view, taking a rest, and so on. Also, it is impossible to shelter toward the babony window from emergent situations including the outbreak of fire. Disclosure of Invention Technical Problem

[8] It is therefore an object of the present invention to provide a guardrail for preventing fal-off which can prevent fal-off over an opposite side while hdding the highest rotational bar of a babony guardrail by accessorfly or integrated^^* instaϋi ng a guardrail for preventing fal-off, in which an upper rotational bar rotates toward an inner side only of the babony, on guardrails of apartment babonies, stairs or near windows of general buildings.

[9] To accomplish the above object, in a guardrail instated on a babony or stairs, the present invention provides a guardrail for preventing fal-off, comprising: supports instated on both ends in an upper part of the guardrail, respectively; round-shaped supporting poles being opposite and fixed, respectively, to be protruded toward an inner side on one side of the supports; a one-way rotational member consisting of a body portion where a hctow insertion h e is formed to be inserted into the supporting pde of the one side and a reverse rotation prevention portion formed on one side of the body portion, and which rotates in one direction only without being rotated in reverse direction; a two-way rotational member rotating in both ways by forming a hdbw insertion hde in a body portion, so that the member can be inserted into the supporting pde of the other side to be opposite to the one-way rotational member; and a rotational bar in which both ends thereof are integratedy fixed to an opposite side where the oneway and two-way rotational members are faced with each other.

[10] It is another object of the present invention to provide a guardrail for preventing fal-off which can sufficiently perform a fal-off prevention function without futy obstructing an upper section of a guardrail instated on the existing babony with steel pipes, while maintaining a wide visual field.

[11] To achieve the above object, the present invention provides a guardrail for preventing fal-off in which the highest rotational bar instated in about 10cm height at an existing babony guardrail rotates toward an inner side of the babony only, preventing fal-off outside the babony.

[12] As one embodiment of the guardrail for preventing fal-off in accordance with the present invention, it wϋ be described as fdbws in detail. Advantageous Effects

[13] Like mentioned so far, in a guardrail for preventing fal-off in accordance with the present invention, an upper rotational bar rotates toward an inner side only of the babony, thereby being simply instated in assembling type on the apartment babonies, stairs or window guardrails of general buildings while preventing fal-off to the opposite side.

[14] In addition, when the upper rotational bar is rotatrvery instated outside a fence on a guardrail of the general house fence, it can prevent an intrusion without permission.

[15] tVbreover, since it is sufficient to instal in about 10cm as a supplement on an existing guardrafl; it can maintain a wide visual field while sufficiently performing a fal-off prevention function, being easily carried when assembling. [16] The descriptions mentioned so far just refer to one embodiment to realize a guardrail for preventing fal-off in accordance with the present invention, while the present invention has been described in connection with a number of embodiments and implementations, the present invention is not so limited but covers various obvious modifications and equivalent arrangements, which fat within the purview of the appended claims. Brief Description of the Drawings

[17] The invention, together with further aspects and advantages thereof, may best be understood by reference to the fdbwing description taken in conjunction with the accompanying drawings in which:

[18] Eg. 1 is a perspective view illustrating a guardrail for preventing fal-off in accordance with one embodiment of the present invention;

[19] Eg. 2 is a vertical sectional view illustrating a side cut by I-I' of Eg. 1 ;

[20] Eg. 3 is an expbded perspective view ϋustrating a one-way rotational member of a guardrail for preventing fal-off by dismantling it according to one embodiment of the present invention;

[21] Eg. 4 is a partial expanded perspective view illustrating a reverse rotation prevention member of a guardrail for preventing fal-off by expanding it according to one embodiment of the present invention;

[22] Eg. 5 is an installation state diagram showing that a guardrail for preventing fal- off is instated according to one embodiment of the present invention; and

[23] Eg. 6 is a rough expbded perspective view illustrating a one-way rotational member of a guardrail for preventing fal-off in accordance with another embodiment of the present invention. Mode for the Invention

[24] Like mentioned above, in a guardrail instated on a babony or stairs, a guardrail for preventing fal-off in accordance with the present invention comprises: supports instated on both ends in an upper part of the guardrafl; respectively; round-shaped supporting pdes being opposite and fixed, respectively, to be protruded toward an inner side on one side of the supports; a one-way rotational member consisting of a body portion where a hdbw insertion hde is formed to be inserted into the supporting pde of the one side and a reverse rotation prevention portion formed on one side of the body portion, and which rotates in one direction only without being rotated in reverse direction; a two-way rotational member rotating in both ways by forming a hdbw insertion hde in a body portion, so that the member can be inserted into the supporting pde of the other side to be opposite to the one-way rotational member; and a rotational bar in which both ends thereof are integratedy fixed to an opposite side where the oneway and two-way rotational members are faced with each other.

[25] The present invention wϋ now be described in detail with reference to exemplary preferred embodiments as illustrated in the accompanying drawings.

[26] Referring to Eg. 1 through Eg. 5, a guardrail for preventing fal-off in accordance with one embodiment of the present invention is ϋustrated.

[27] A guardrafl(lO) for preventing fal-off in accordance with the present invention comprises: supports(20) instated on both ends in an upper part of a guardrafl(l) instated on a babony or stairs, respectively; round-shaped supporting pdes(30) being opposite and fixed, respectively, to be protruded toward an inner side on one side of the supports; a one-way rotational member(40) consisting of a body portion(41) where a hdbw insertion hde(43) is formed to be inserted into the supporting pde(30) of the one side and a reverse rotation prevention portion(45) formed on one side of the body portion(41), and which rotates in one direction only without being rotated in reverse direction; a two-way rotational member(50) rotating in both ways by forming a hdbw insertion hde(53) in a body portion(52), so that the member can be inserted into the supporting pde(30) of the other side to be opposite to the one-way rotational member(40); and a rotational bar(60) in which both ends thereof are integratedy fixed to an opposite side where the one-way and two-way rotational members(40,50) are faced with each other, and rotating in one direction only.

[28] The support(20) is formed with a pierced hde(21) into which the supporting pde(30) is inserted in an upper part, so that the supporting pde(30) inserted into the pierced hde(21) is screw-fixed by a coupling bdt(23) through a coupling hde(22) formed in one side section.

[29] Then, 'r= '-shaped damp portions(24) inserted into one end of an upper bar(2) of the guardrafl(l) are formed in bwer parts of the supports(20), and fixed damps(26) are screw-fixed to an opening portion(25) of the damp portions(24) with coupling bdts(27).

[30] A rotational bar coupling end(42) inserted/coupled into/with one side section of a hdbw hde of the rotational bar(60) is formed on an outer circumferential side of the body portion(41) of the one-way rotational member(40).

[31] Furthermore, the one-way rotational member(40) is formed with a round-shaped insertion groove(44) on one inner side of the insertion hde(43) of the body portion(41), and the reverse rotation prevention portion(45) is fixed to the insertion groove(44), and wherein the reverse rotation prevention portion(45) has rdler bearings(46) rotating in one direction only by being protruded to be contacted with the supporting pde(30) inserted into the insertion hde(43).

[32] In case of the reverse rotation prevention portion(45) having the rdler bearings(46) rotating in the one direction only, it can be described with a structure of a one-way dutch bearing(not shown) which is generaly applied as a car part in most cases. Thus, detailed explanations wϋ be omitted while an operational structure of the reverse rotation prevention portion(45) wϋ be simply described in reference to Eg. 4.

[33] Rdler bearings(46) are protruded at equal intervals in opening hdes(45b) formed at equal intervals on an inner side(45a) of a reverse rotation prevention portion(45) inserted into or integratedy fixed to one side of an insertion groove(44) formed on one side of an insertion hde(43) of a body portion(41) of the one-way rotational member(40).

[34] An elastic member(47) such as a spring is disposed on one side of the roter bearings(46) to apply an elastic force for an easy rotation when the roter bearings(46) are cbsery contacted with the supporting pde(30) while rotating.

[35] While the r ter bearings(46) and the elastic member(47) are disposed like above, circular arc-shaped inclined grooves(48) are formed at certain intervals in a mobile position pushed inside abng the rotation of the roter bearings(46), so that it can be bcated in a big diameter(48b) when the roter bearings(46) rotate in one direction and be bcated in a smal diameter(48a) when the rdler bearings(46) rotate in reverse direction.

[36] Accordingly, when the roter bearings(46) rotate in the reverse direction, that is, a direction outside the babony, the inclined grooves(48) functioning as roter bearing stoppers are hooked over the smal diameter(48a), being unable to rotate.

[37] Thus, the reverse rotation of the one-way rotational member coupled with the supporting pde(30) is prevented.

[38] And, a ring-type bearing(51) coated to smoothly rotate on an inner side contacted with the supporting pde(30) of other side is inserted or integratedy formed in an insertion groove(54) formed on one side of an insertion hde(53) of a body portion(52) of the two-way rotational member(50).

[39] Therefore, when the rotational bar(60) rotates in the one direction, that is, a direction inside the babony, the one-way rotational member(40) coupled with the onesided supporting pde(30) for rotation simultaneously rotates by being fixed to one side of the rotational bar(60), and the rdler bearings(46) of the reverse rotation prevention portion(45) fixed to the insertion groove(44) of the one-way rotational member(40) simultaneously rotate while being contacted with the one-sided supporting pde(30).

[40] At the same time, the two-way rotational member(50) coupled with other side of the rotational bar(60) rotates as wel.

[41] Inversely, if the rotational bar(60) rotates in a direction outside the babony, that is, a reverse direction, the one-way rotational member(40) fixed to one side of the rotational bar(60) tries to simultaneously rotate. And, at the moment when the rdler bearings(46) of the reverse rotation prevention portion(45) fixed to the insertion groove(44) of the one-way rotational member(40) rotate in reverse direction while being contacted with the supporting pde(30), the inclined grooves(48) formed inside the reverse rotation prevention portion(45) are hooked over the smal diameter(48a), thereby preventing the reverse rotation.

[42] As a resiit, since the rotational bar(60) does not rotate like above, the two-way rotational member(46) coupled with the supporting pde of the other side does not rotate as wel.

[43] The guardrail(lO) in accordance with one desirable embodiment of the present invention wit be instated and operated bebw by the configuration mentioned above.

[44] When the supports(20) being in the same length as that of both upper ends of an existing guardrafl(l) instated on the babony are instated to be opposite to each other on both upper ends of the existing babony guardrafl(l), the rotational bar(60) is bcated in the highest part.

[45] At this time, when a child tries to go up by holding the rotational bar(60) with the hand whfle stepping on the veranda guardrafl(l), the rotational bar(60) instated on top of the babony guardrail(l) rotates toward an inner side of the babony, preventing the child from going over to the outside of the guardrafl(lθ) for preventing fal-off.

[46] If an adiit leans against the rotational bar(60) bcated in the highest part by the upper part of the body, the rotational bar(60) does not rotate outside the veranda, thereby maintaining the leaning state.

[47] And, if the adiit goes over the guardrail since his or her center of gravity slants toward the outside of the veranda by slipping and fating on the floor of the babony while he or she leans against the bar, the rotational bar(60) rotates in downward direction of the inside of the babony as soon as a portion of his or her body is contacted with the rotational bar(60) functioning as a pivot.

[48] Therefore, the adiit does not fat off when slating toward the outside of the guardrafl(lθ) for preventing fal-off.

[49] In other words, so as to fat off outside the veranda, one should jump over the rotational bar(60) bcated in the highest part of the guardrail as if he or she does a high jump without his or her hand or a portion of the body being contacted with the rotational bar(60) disposed in the highest part of the guardrail like above, after fating off on the floor of the babony by his or her feet.

[50] Eg. 6 is a rough expbded perspective view illustrating a one-way rotational member of a guardrail for preventing fal-off in accordance with another embodiment of the present invention.

[51] Referring to Eg. 6, a one-way rotational member(lOO) is formed with a reverse rotation prevention portion(l 10) having a saw-tooth gear(l 11) where hooking ends(l 12) are formed on one side, by being indined in one direction as a round shape on one side of a body portion(lθl).

[52] When the saw-tooth gear(l 11) rotates in reverse direction, the one-sided hooking ends(l 12) are hooked over a hinge-fixed hooking part(121) to be adjacent to the hooking ends(l 12) of the saw-tooth gear(l 11) on one side of a support(120), being unable to rotate.

[53] That is to say, in case the body portion(lθl) of the one-way rotational member(lOO) rotates toward the outside of the babony, the one-sided hooking ends(l 12) of the sawtooth gear(l 11) of the reverse rotation prevention portion(l 10) are hooked over an end section(121a) of the hooking part(121), and do not rotate.

[54] tVbre specificaly, the reverse rotation prevention portion(l 10) for enabling the oneway rotational member(lOO) to rotate in one direction only is formed with a round- shaped cutting hde(113) on one inner side of the body portion(lθl) of the one-way rotational member(lOO), which is coupled with a supporting pde(130) fixed to the support(120) and is contacted with an inner side of the support(120). And, the sawtooth gear(l 11) with the vertical blade-shaped hooking ends(l 12) is formed in a direction outside the babony on an inner side of the round-shaped cutting hde(l 13).

[55] tVbreover, the saw-tooth gear(l 11) can be formed in round shape on an inner side of the body portion(lθl) where the cutting hde is formed or an outer side of the body portion(lθl) on one side of the one-way rotational member(lOO).

[56] And, when the body portion(lθl) of the one-way rotational member(lOO) rotates in reverse direction, that is, a direction outside the babony, a protruded hinge axis(122) is fixed to a position where the saw-tooth gear(l 11) of an inner side of the support(120) is adjacent, so that the hooking ends(l 12) of the saw-tooth gear(l 11) are hooked to prevent a rotation, and the hooking part(121) is hinge-fixed to the protruded hinge axis(122).

[57] One end of an tensile spring(123) is fixed to one side of the hooking part(121) to maintain an elastic force in accordance with the rotation of the saw-tooth gear(l 11), and other end of the tensile spring(123) is fixed to a fixing pin(123a) protruded in an adjacent position of the hinge axis(122) of the support(120).

[58] In addition, the hooking part(121) and the tensile spring(123) can be fixed to one side of the supporting pde(130) fixed to the support(120) according to a position of the saw-tooth gear(l 11) formed in the body portion(lθl) of the one-way rotational member(lOO).

[59] By the above configuration, the guardrafl(lO) for preventing fal-off in accordance with one embodiment of the present invention can be accessorfly instated on top of window guardrails(not shown) or building stairs, rooms of preschods as wel as be accessorfly instated on top of the existing apartment veranda guardrail(l) like shown above. Furthermore, it can be integratedy instated on the veranda guardrail(l) while constructing apartment verandas.

[60] Besides, the above rotational bar can be rotatively instated in outer direction of fences or window guardrafls(not shown) in an upper section to prevent an intrusion without permission, thereby preventing one from going over by stepping on the upper rotational bar on the fences or window guardrails outside the fences or window frames.

[61] Furthermore, in case of the rotational bar(60) between the supports(20), a one-sided rotational bar(not shown) can be inserted/guided into other-sided rotational bar(not shown) to vary its length according to a length of the previously instated babony guardrafl(l) shown above.

Claims

[1] In a guardrail instated on a babony or stairs, a guardrail for preventing fal-off, comprising: supports inserted into both ends of an upper part of the guardrafl, respectively; round-shaped supporting pdes being opposite and fixed, respectively, to be protruded toward an inner side on one side of the supports; a one-way rotational member consisting of a body portion where a hdbw insertion hde is formed to be inserted into the supporting pde of the one side and a reverse rotation prevention portion formed on one side of the body portion, and which rotates in one direction only without being rotated in reverse direction; a two-way rotational member rotating in both ways by forming a hdbw insertion hde in a body portion, so that the member can be inserted into the supporting pde of the other side to be opposite to the one-way rotational member; and a rotational bar in which both ends thereof are integratedy fixed to an opposite side where the one-way and two-way rotational members are faced with each other.

[2] The guardrail of daim 1, wherein the one-way rotational member is formed with a round-shaped insertion groove on one inner side of the insertion hde of the body portion, and a reverse rotation prevention portion having r ter bearings rotating in one direction only by being produced to be contacted with the supporting pde inserted into the insertion hde is fixed to the insertion groove.

[3] The guardrail of daim 1, wherein the one-way rotational member is formed with a reverse rotation prevention portion having a saw-tooth gear where hooking ends are formed on one side by being indined in one direction as a round shape on one side of the body portion, so that the one-sided hooking ends can be hooked over a hinge-fixed hooking part to be adjacent to the hooking ends of the saw-tooth gear on one side of the support when the saw-tooth gear rotates in reverse direction, being unable to rotate.

[4] The guardrail of daim 1, wherein the support is formed with a pierced hde into which the supporting pde is inserted in an upper part, so that the supporting pde inserted into the pierced hde is screw-fixed by a coupling bdt through a coupling hde formed in one side section, and 'ι= '-shaped damp portions inserted into one end of an upper bar of the guardrail are formed in a bwer part, then an opening portion of the damp portions is screw-fixed by using a damp as a coupling bdt.