JP2018042701A - Safety rope attaching guide - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safety rope attaching guide that can pass even if a handrail is curved, an outer diameter of a handrail holding member is larger than specifications, or an interferer is present in the middle of the handrail.SOLUTION: A safety rope attaching guide is slidably inserted in an outer circumference of a handrail 3a. The safety rope attaching guide comprises: a cylindrical body 15; a trumpet-shaped cylindrical part 16 provided at both ends; one or multiple upper rollers 23a, 23b and a right-side roller 22a provided at an upper wall and a right side part of the cylindrical body 15, and rotatably coming in abutment with an upper surface and a right side surface of the handrail 3a, respectively; a safety rope fixture 27 protruded and provided in the right side part of the cylindrical body 15; an attachment member 18 provided in a left side part of the cylindrical body 15; an elongated bracket 17 attached to the attachment member 18 in a freely swinging manner; two front and rear left-side rollers 22b provided at both sides and rotatably coming in abutment with a left side surface of the handrail 3a; and a spring 26 interposed between the attachment member 18 and the bracket 17, and biasing the bracket 17 and the left-side rollers 22b to the handrail 3a side.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a guide hand for attaching a lifeline, in particular, in a handrail device provided with a vertical strut standing on H steel or the like at a construction site such as a building or a bridge, and a horizontal strut attached with this vertical strut, The present invention relates to a lifeline mounting guide that is slidably mounted along the horizontal support.

  In general, at the construction site of buildings such as buildings and the construction site of bridges and the like, a plurality of vertical struts are erected on the H steel flange via the clamping members, and handrails are attached to these vertical struts along the lateral direction. A handrail device is also used in which a guide with a lifeline attached to this handrail is slidably inserted.

  This handrail device is intended to ensure safety when an operator walks on a flange of H steel or in a passage close to H steel.

  In addition, since the guide with the lifeline attached is attached to the horizontal support, this guide slides and moves around the handrail as the worker walks, and as a result, the lifeline always wrapped around the operator's trunk. Since it is connected to the handrail, even if the worker is about to fall from the flange or passage, the lifeline and handrail support the worker and prevent them from falling or prevent falling to the ground To ensure safety.

  As such a handrail device and a guide for attaching a lifeline, for example, a guide disclosed in Patent Document 1 has been developed.

  This handrail device is inserted into a plurality of vertical struts that are attached to H steel at construction and construction sites, and a handrail holding member provided at the upper end of each vertical strut, and is slidably inserted in each handrail holding member. Two straight handrails, and a lifeline attaching guide that is slidably attached to the outer periphery of the handrail and passes through the outer periphery of each handrail holding member.

  The lifeline mounting guide includes an outer cylinder, and rollers provided on the upper wall and the side wall of the outer cylinder, and in contact with the outer periphery of the handrail and the outer periphery of the column holding member, respectively, in a freely rolling manner. As the pedestrian walks, the roller rolls to pass through each handrail.

Japanese Patent Laying-Open No. 2016-44525 (see abstract, FIG. 1, FIG. 6, FIG. 7)

  Although the guide for attaching a lifeline disclosed in Patent Document 1 is not structurally defective, it is desired to improve the following problems.

  In other words, the guideline for attaching the lifeline can only pass through the outer periphery of the straight handrail and the handrail holding member. If the outer diameter of the outer cylinder of the member is larger than that of the specification, or if an obstacle such as another handrail connecting member with a larger outer diameter is provided in the middle of the handrail, the roller will move the curved portion of the handrail. There is a case where it cannot pass or there is a case where it cannot pass through the handrail holding member or the interference due to interference with the handrail holding member or the interference.

  Therefore, an object of the present invention is to allow a handrail to pass through when a part of the handrail is curved, or when the handrail holding member has an outer diameter slightly larger than that of the specification, or even if there is an interfering object in the middle of the handrail. It is to provide an id for mounting.

In order to achieve the above object, the lifeline mounting guide of the present invention is a lifeline mounting guide that is slidably inserted into the outer periphery of the handrail,
One or more cylinders, trumpet-shaped cylinders provided at both ends of the cylinder, and one or a plurality provided on the upper wall and the right side of the cylinder and rotatably abutting on the upper and right sides of the handrail An upper roller and a right roller, a lifeline attachment provided to be extended to the right side of the cylinder, an attachment member provided on the left side of the cylinder, and a long and slenderly attached to the attachment member A bracket, two front and rear left rollers provided on both sides of the bracket, and a spring interposed between the mounting member and the bracket to urge the bracket and the left roller toward the handrail side. Yes.

  According to the present invention, the following effects can be achieved.

  Since the guide for attaching the lifeline is provided with a roller that swings, even if the handrail to which this guide is attached is a curved handrail provided at a corner of the work site, or a handrail provided in the middle of the handrail Even if the outer diameter of the interference object such as the holding member or the handrail connecting member is larger than the specification, the roller can swing and ride on the outer periphery of the handrail holding member or the interference object.

1 is a perspective view of a handrail device according to an embodiment of the present invention but provided with a guide for attaching a lifeline. It is a side view of the vertical support | pillar which concerns on one embodiment of this invention. It is a side view of the vertical support | pillar which concerns on other embodiment. It is a side view of the vertical support | pillar which concerns on other embodiment similarly. It is a side view of the vertical support | pillar which concerns on other embodiment similarly. A) It is a front view of the handrail holding member which concerns on one embodiment of this invention. B) It is a side view similarly. C) It is an AA line crossing top view. A) It is a partially notched top view of the handrail connecting member which concerns on one embodiment of this invention. B) It is also a front view. C) It is a side view similarly. D) It is an AA line crossing top view. It is a top view when the guide which concerns on one embodiment of this invention, and this guide passes a straight handrail. It is a top view at the time of passing the curved handrail in a channel | path corner part similarly. Similarly, it is a top view when passing the outer periphery of a handrail holding member. It is a XX line vertical side view of FIG.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A lifeline attaching guide according to an embodiment of the present invention and a handrail device attached thereto will be described with reference to the drawings.

  The handrail device shown in the figure is installed along the side of the passage in the work site of buildings such as buildings and construction parts such as bridges, so that when an operator walks in this passage, it falls down or falls to the ground. This is to prevent safety.

  For example, as shown in FIG. 1, the handrail device is attached to a flange Ha of H steel W, which is a member to be attached, provided in the vicinity of a passage in a building, building construction, or construction site.

  The H-steel W shown in FIG. 1 is a part of a structure that constitutes a framework of a building or a structure, but the plane itself may also be used as a passage where an operator walks, or close to the passage. There is also a case.

  Although FIG. 1 shows a state in which the handrail device T is disposed corresponding to a straight path and a curved corner path, it may be provided only in the middle of the straight path.

  As shown in FIG. 1, the handrail device T according to one embodiment includes a pair of left and right vertical columns 1 a and 1 b that stand on the outer ends of the left and right H steels W and W provided at the corner of the building and construction site, A pair of left and right inserted respectively in a pair of middle vertical struts 1c, 1c standing at the inner ends of the H steels W, W and handrail holding members 2, 2 provided at the upper ends of the left and right vertical struts 1a, 1b. Straight handrails 3a and 3b, and an intermediate curved handrail 3c that is inserted into the handrail holding member 2 provided at the upper end of the intermediate vertical column 1c and arranged and connected between the left and right handrails 3a and 3b, have.

  Moreover, the left and right handrails 3a and 3b are provided with a pair of left and right handrail connecting members 4a and 4b slidably inserted into one end portions of the left handrails 3a and 3b and both end portions of the intermediate handrail 3c.

  Further, as will be described later with reference to FIGS. 6 and 7, the handrail holding member 2 and the handrail connecting members 4a and 4b have leaf springs 6d and 14 which are locking members for the handrails 3a, 3b and 3c, respectively. .

  As will be described later with reference to FIGS. 8 to 10, the guide 5 for attaching the lifeline according to the embodiment of the present invention is a roller 22 a that swings while abutting against the outer periphery of the handrail holding member 2 and the handrail connecting members 4 a and 4 b. 22b.

  According to the handrail device T of FIG. 1, left and right vertical struts 1a and 1b and two middle vertical struts 1c and 1c at a corner portion are erected in advance on a flange of H steel W.

  Next, two left and right handrails 3a and 3b are horizontally inserted through the upper and lower handrail holding members 2 and 2 into the upper ends of the left and right vertical struts 1a and 1b, respectively.

  Further, two intermediate handrails 3c and 3c are horizontally inserted into the intermediate vertical struts 1c and 1c via the upper and lower handrail holding members 2 and 2, respectively.

  Next, the middle handrail 3c is connected to the left and right handrails 3a and 3b via the left and right handrail connecting members 4a and 4b.

  At this time, one handrail, for example, handrail connecting members 4a and 4b are inserted on both sides of the intermediate handrail 3c, and in this state, the left and right handrails 3a and 3b are slid to approach the end of the intermediate handrail 3c. Then, the left and right handrails 3a and 3b are connected to the intermediate handrail 3c by inserting the handrail connecting members 4a and 4b into the ends of the left and right handrails 3a and 3b, respectively.

  The lifeline attachment guide slidably inserted into the handrails 3a, 3b, and 3c moves along the outer periphery of the handrails 3a, 3b, and 3c as the worker walks, and the worker always passes through the lifeline at any position. It is supported by handrails 3a, 3b, 3c.

  Although FIG. 1 shows a state in which four vertical columns 1a, 1b, 1c, and 1c and three handrails 3a, 3b, and 3c are provided, three or more may be provided depending on the length of the passage. Well, even two can be used.

  The vertical struts 1a, 1b and 1c are of two types as shown in the embodiment shown in FIGS.

  The basic structure of the vertical struts 1a, 1b, 1c according to the embodiments is a straight pillar A1 shown in FIGS. 2 and 5, or a pillar A2 having a bent lower part shown in FIGS. The holding members B are provided at the lower ends of the pillars A1 and A2 and sandwich the flange of the H steel W, and the handrail holding member 2 is coupled to the upper ends of the pillars A1 and A2 and the intermediate body part, respectively. Is.

  One handrail holding member 2 may be provided at the upper end of the pillars A1 and A2. However, in order to improve safety, another handrail holding member 2 is provided in the middle as shown in FIGS. Also good. In this case, as shown in FIG. 1, handrails 3a, 3b, and 3c can be provided between the vertical columns 1a, 1b, and 1c in parallel in two vertical directions.

  The lower part of the column A2 shown in FIGS. 3 and 4 is bent. This is a passage through a part of the column A2 so that the column A2 does not get in the way when an operator walks on the H steel W. The space above is widened by standing on the outside of the.

  The clamping member B is composed of a U-shaped clamping piece B1 and a bolt B2 screwed into the clamping piece B1.

  And the vertical support | pillars 1a, 1b, and 1c are stood up on H steel by clamping the flange Ha of H steel with the clamping piece B1 and the volt | bolt B2.

  As shown in FIGS. 2 and 3, the vertical struts 1a, 1b, and 1c are shown in FIGS. 4 and 5 when the flange Ha is horizontal. As shown, the one provided with the downward holding piece B1 is used.

  As shown in FIG. 6, each handrail holding member 2 shown in FIG. 1 has a hollow cylinder 2A in which the front side or the back side is released and the bottom wall 2B is inclined, and the bottom wall 2B in the cylinder 2A along the bottom wall 2B. The wedge 6 is slidably fitted.

  As a result, the handrails 3a, 3b, and 3c are respectively inserted from the opened openings, and the handrails 3a, 3b, and 3c are sandwiched between the inner surface of the upper wall of the cylindrical body 2A and the upper surface of the wedge 6 that has been driven.

  Conversely, when the wedge 6 is pulled out, the handrails 3a, 3b, 3c can be pulled out, so that the handrail can be easily attached and detached.

  Further, the cylindrical body 2A includes a locking hole 7 formed in the side wall and a locking pin 8 projecting downward from the bottom 6b.

  The wedge 6 includes a main body 6a having a U-shaped cross section, and a long hole 6c formed in the bottom portion 6b in a longitudinal direction and slidably fitted to the locking pin 8.

  The wedge 6 is provided with a loosening prevention member made up of a dog-shaped leaf spring 6d inserted into the main body 6a and detachably fitted into the locking hole 7.

  Therefore, when the wedge 6 is driven into the cylindrical body 2A, the wedge 6 moves straight along the long hole 6c while being guided by the locking pin 8, and the locking pin 8 is fitted into the long hole 6c. Therefore, it is possible to prevent the wedge 6 from coming off and being lost.

  Further, when the wedge 6 is driven deeply, the dog-shaped locking portion of the leaf spring 6d is fitted into the locking hole 7 by the self-returning force, and the wedge 6 is prevented from loosening even if there is vibration or the like. As a result, it is possible to prevent the handrails 3a, 3b, 3c from coming out.

  As shown in FIG. 7, the handrail connecting members 4a and 4b shown in FIG. 1 are provided at the lower end of the cylindrical body 9a, the viewing hole 10 formed in the center of the upper wall of the cylindrical body 9a, and the lower end of the cylindrical body 9a. The wedge guide portion 9b is provided continuously and the bottom wall 9c is inclined, and the wedge 13 is slidably inserted into the wedge guide portion 9b along the bottom wall 9c.

  The wedge guide portion 9b includes a locking hole 11 formed in the side wall and a locking pin 12 projecting downward from the bottom wall 9c.

  Further, the wedge 13 has a main body 13a having a U-shaped cross section, a long hole 13c formed in a longitudinal direction on the bottom 13b of the main body 13a and slidably fitted to the locking pin 12, and in the main body 13a. And a locking member made up of a leaf spring 14 that is inserted and detachably fitted into the locking hole 11.

  According to the handrail connecting members 4a and 4b, for example, as shown in FIG. 7, the left handrail 3a and the right hand end of the middle handrail 3c are brought into contact with each other while being inserted into the cylindrical body 9a. The handrail 3a and the intermediate handrail 3c are connected along the horizontal direction.

  Conversely, when only the intermediate handrail 3c is to be removed for repair or replacement, the wedges 6 of the left and right handrail connecting members 4a and 4b are loosened in advance, and the cylinders 9a are moved to the left and right handrails 3a and 3b. You can slide all the way.

  Since the peeping hole 10 is formed in the cylindrical body 9a, it can be visually confirmed whether or not the ends of the right handrail 3a and the intermediate handrail 3c are in contact with each other, thereby ensuring safety.

  Since the wedge 6 that is slidably fitted along the bottom wall 9c is provided in the cylindrical body 9a, the handrails 3a, 3b, and 3c are sandwiched between the upper surface of the wedge 13 that is driven into the inner surface of the upper wall of the cylindrical body 9a. However, when the wedge 13 is loosened, the handrails 3a, 3b, and 3c can be extracted, and the handrail can be easily attached and detached.

  Further, as described above, the cylindrical body 9a is detachably fitted into the locking hole 11, the locking pin 12, the long hole 13c that is slidably fitted to the locking pin 12, and the locking hole 11. Since the loosening prevention member comprising the leaf spring 14 is provided, when the wedge 13 is driven into the cylindrical body 9a, the wedge 13 moves straight along the long hole 13c while being guided by the locking pin 12, and is also locked. Since the pin 12 is fitted in the long hole 13c, the wedge 13 can be prevented from being lost.

  Further, when the wedge 13 is driven deeply, the dog-shaped locking portion of the leaf spring 14 is fitted into the locking hole 11 by the self-returning force, and the wedge 6 is prevented from loosening even if there is vibration or the like. As a result, it is possible to prevent the handrails 3a, 3b, 3c from coming out.

  As described above, the handrail device T according to the present invention includes the plurality of handrail connection members 4a, 4b, and 4c, and thus the other handrail 3a adjacent to the handrail connection members 4a and 4b provided on both sides of the intermediate handrail 3c. By sliding to the side 3b, the intermediate handrail 3c can be detached from the handrail connecting members 4a and 4b independently.

  Further, by attaching the handrail connecting members 4a and 4b to the adjacent handrails 3a and 3b on both sides in advance, by sliding the handrail connecting members 4a and 4b on both sides to both sides of the intermediate handrail 3c in this state, The intermediate handrail 3c can be easily added to other adjacent handrails 3a and 3b.

Therefore, the entire length of the handrails 3a, 3b, 3c can be adjusted according to the work site, or the damaged intermediate handrail 3c can be replaced with a new one each time, and the handrails 3a, 3b, 3c can be attached and detached. You can improve your work.
Furthermore, as described above, the handrail holding member 2 and the handrail connecting members 4a and 4b have the locking members made of the leaf springs 6d and 14 for the handrails 3a, 3b and 3c, respectively, so that there is vibration or the like. However, the wedges 6 and 13 are not loosened. As a result, the handrails 3a, 3b, and 3c are firmly held by the handrail holding member 2 and the handrail connecting members 4a and 4b, and the handrails 3a, 3b, and 3c are prevented from coming off. It is possible to improve safety.

  As shown in FIGS. 8 to 11, the guide 5 for attaching a lifeline according to one embodiment of the present invention has a cylindrical body 15 whose lower part is released, and a trumpet-shaped cylindrical part 16 provided at both ends of the cylindrical body 15. , 16 and one or a plurality of upper rollers 23a, 23b and a right roller 22a which are provided on the upper wall and the right side of the cylindrical body 15 and rotatably contact the upper and right sides of the handrails 3a, 3b, 3c, respectively. , 22a and a lifeline fitting 27 provided to project from the right side of the cylindrical body 15. The right rollers 22a and 22a are fixed to a pair of brackets 19 projecting from the right side of the cylindrical body 15 via a rotating shaft 21b.

  Furthermore, the mounting member 18 provided on the left side of the cylindrical body 15, the elongated bracket 17 that is slidably mounted on the mounting member 18, and the handrail 3a provided on both sides of the bracket 17 via the rotating shaft 21c. 3b, and two left-side rollers 22b and 22b that are rotatably in contact with the left side surfaces of 3b and 3c.

  Further, a spring 26 is interposed between the mounting member 18 and the bracket 17 and biases the bracket 17 and the left rollers 22b and 22b toward the handrails 3a, 3b and 3c.

  In this case, a mounting member 18 having a U-shaped cross section is provided so as to protrude from the left side portion of the cylindrical body 15, and the bracket 17 having a U-shaped cross section swings on the mounting member 18 via a support shaft 24 that is movable to the left and right. A guide pin 25 is provided between the outer end of the mounting member 18 and the outer end of the bracket 17, and a coil spring 26 is interposed on the outer periphery of the guide pin 25.

  Further, the inner diameter of the cylinder 15 is formed larger than the outer diameter of the cylinder 2A of the handrail holding member 2 and the cylinder 9a of the handrail connecting member 4. For this reason, the guide 5 can pass not only the outer periphery of the handrail connecting members 4a and 4b but also the outer periphery of the handrail holding member 2. Further, the guide 5 can pass through not only the straight left and right handrails 3a and 3b but also a curved handrail 3c.

  In the guide for attaching the lifeline of the present invention, since the lifeline attached to the lifeline attachment 27 is wound around the trunk of the operator, the guide is attached to the outer periphery of each handrail 3a, 3b, 3c as the operator walks. Move along.

  8 and 11 are a plan view and a cross-sectional view when the guide 5 passes the outer periphery of the straight right handrail 3a. In this case, the bracket 17 is biased by the spring 26 in the direction of the cylinder 15. The bracket 17 is parallel to the cylinder 15, and the left and right rollers 22a and 22b are in contact with the handrail 3a in parallel.

  FIG. 9 is a plan view when the guide 5 passes through an intermediate handrail 3c having a curved corner. In this case, when the handrail 3c has a gentle curve and is close to a straight line, the left and right rollers 22a as shown in FIG. 22b are in contact with the outer periphery of the handrail 3c. However, if the angle of the curve is sharp, the bracket 17 may swing and only one roller 22b may contact the handrail 3c. You can pass along the curve.

  FIG. 10 shows a plan view when the guide 5 passes the outer periphery of the handrail holding member 2.

  In this case, when the front roller 22b of the left rollers 22b and 22b comes into contact with the outer periphery of the cylindrical body 2A of the handrail holding member 22, the roller 22b is pushed outward, and as a result, the bracket is resisted against the spring 26. 17 swings around the support shaft 24 in the rotational direction, and this roller 22b can ride on the outer periphery of the cylindrical body 2A of the handrail holding member 2 and pass therethrough.

  As described above, since the guide 5 for attaching the lifeline is provided with the rollers 22b and 22b that swing, the handrails 3a, 3b, and 3c are curved handrails provided at the corners of the work site, or the handrails are held. Even if an interference object such as the member 2 or the handrail connecting members 4a and 4b is provided in the middle of the handrail and the outer diameter thereof is larger than the specification, the rollers 22b and 22b swing and these handrail holding members 2 And can ride on the outer periphery of each of the handrail connecting members 4a and 4b.

  Therefore, the worker can fall safely and walk safely at any position in the passage at the work site.

W Mounted member 1a, 1b, 1c Vertical support 2 Handrail holding member 2A Tubular body 2B Bottom wall 3a, 3b, 3c Handrail 4a, 4b, 4c Handrail connecting member 5 Guide 6 Wedge 6a Main body 6b Bottom 6c Long hole 6d Leaf spring 7 Locking hole 8 Locking pin 9a Cylinder 9b Wedge guide portion 10 Peeping hole 11 Locking hole 12 Locking pin 13 Wedge 13a Main body 13b Bottom portion 13c Long hole 14 Leaf spring 15 Tube 16 Tube portion 17 Bracket 18 Mounting member 22a, 22b Roller 24 Support shaft 25 Guide pin 26 Spring

Claims (2)

In the guide for attaching the lifeline inserted slidably on the outer periphery of the handrail (3a), (3b), (3c),
A cylinder (15);
Trumpet-shaped cylinders (16), (16) provided at both ends of the cylinder (15);
One or a plurality of upper rollers (23a) provided on the upper wall and the right side of the cylindrical body (15) and rotatably contacting the upper and right sides of the handrails (3a), (3b), (3c), respectively. ), (23b) and right rollers (22a), (22a),
A lifeline attachment (27) provided overhanging on the right side of the cylinder (15);
An attachment member (18) provided on the left side of the cylindrical body (15);
An elongated bracket (17) slidably attached to the attachment member (18);
Two left and right left and right rollers (22b) and (22b) provided on both sides of the bracket (17) and rotatably contacting the left side of the handrail (3a), (3b), (3c);
The bracket (17) and the left rollers (22b) and (22b) are interposed between the mounting member (18) and the bracket (17) and attached to the handrails (3a), (3b) and (3c). An energizing spring (26);
A lifeline installation guide consisting of A mounting member (18) having a U-shaped cross section is provided so as to protrude from the left side of the cylindrical body (15).
A bracket (17) having a U-shaped cross section is slidably attached to the attachment member (18) via a support shaft (24) that can be moved left and right.
A guide pin (25) is provided between the outer end of the mounting member (18) and the outer end of the bracket (17), and a coil spring (26) is interposed on the outer periphery of the guide pin (25). A guide for attaching a lifeline according to Item 1.

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