JPH0666054A - Safety fence - Google Patents

Abstract

PURPOSE:To assemble a safety fence without carrying out any welding works. CONSTITUTION:Channel-shaped crosswise decorative frames 6, 6 are fitted slidably to an upper and a lower crosswise frame members 4, 4, having a plurality of insert holes 5 in such a way that they are directed from one-side ends of the crosswise frame members to the other side ends. Each fence rod 3 is fitted between the members 4, 4 through the use of the insert holes 5 so as to assume the shape of ladder. Nut plates 15 are inserted into the two ends of each decoration frame 6. 6, and a left and a right longitudinal frame member 9 having folded plate part 10, 10 are screwed fast to each nut plate 15 at its top and end. Thus the body of a fence 2 is assembled, and this is set over two posts.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a safety fence.

[0002]

2. Description of the Related Art Conventionally, the following types of safety fences are known. That is, two columns provided at a predetermined interval, a pair of upper and lower horizontal rails that connect these columns to each other in the horizontal direction, and a plurality of rail bars that connect these horizontal rails to each other in the vertical direction are It is a safety fence integrated by welding.

[0003]

[Disadvantages of conventional safety fences] Conventional safety fences have the following drawbacks. That is, the welding work and the post-welding treatment (surface finishing and strain relief) at the time of manufacture were troublesome, and the appearance as a product was poor.

[0004]

[Means for Solving the Disadvantages] The present invention adopts the following means in order to eliminate the above disadvantages. That is, it has two pillars provided at a predetermined interval and a fence main body bridged between these pillars, and the fence main body has a pair of upper and lower horizontal frame members having fence bar insertion holes at predetermined intervals, A horizontal decorative frame with a U-shaped cross section that is slidably fitted to the outside of these horizontal frame members, a plurality of rail bars whose both ends are fitted into the respective rail bar insertion holes of the upper and lower horizontal frame members, and upper and lower horizontal decorative frames. And a pair of left and right vertical frame members that connect both end portions of the.

[0005]

The present invention has the following functions. A horizontal decorative frame is slidably fitted to each of the upper and lower horizontal frame members from one end side to the other end side in the longitudinal direction. Then, insert one end of the plurality of fence bars into each of the fence hole insertion holes of one of the fences, and then insert the other end of each of the fence bars into the other end of the other fence. Insert the insertion hole for the fence bar so that it looks like a ladder as a whole. Next, the fence main body is assembled by connecting both sides of the upper and lower horizontal decorative frames with the left and right vertical frame members. The assembly of the safety fence is completed by bridging the fence body assembled in this way between two columns at a site or the like.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on the embodiments shown in the drawings. In this specification, the front means the front side of FIG. 1, the rear means the back side, the left means the left side of FIG. 1, and the right means the right side of FIG. As shown in FIG. 1, it has two struts 1, 1 provided on the left and right at a predetermined interval, and a fence main body 2 spanned between these struts 1.

First, the fence main body 2 will be described. As shown in FIG. 2, the fence main body 2 includes a plurality of fence bars 3, 3, ..., A pair of upper and lower horizontal frame members 4 and 4 fitted to the upper and lower ends of the fence bars 3, and these horizontal frames. It has a pair of upper and lower horizontal decorative frames 6 and 6 which are placed on the outside of the members 4 and 4, and a pair of left and right vertical frame members 9 and 9 (see FIG. 1) which connect the horizontal decorative frames 6 at predetermined vertical intervals. ing.

The horizontal frame member 4 is in the form of an elongated strip plate, and is arranged at predetermined intervals along the longitudinal direction thereof.
A plurality of insertion holes 5 for fence bars 3 are formed so as to penetrate vertically. Each insertion hole 5 has an inner diameter that allows the fence bar 3 to be fitted therein without rattling.

The vertical frame member 9 has horizontal bending plate portions 10 and 10 at both upper and lower ends thereof.
A screw insertion hole 11 that penetrates vertically is formed in the. Bolts 23 are inserted into these screw insertion holes 11 so that the nut plate 15 having the screw holes 16 can be attached in parallel with the bent plate portion 10. It should be noted that the vertical frame member 9 has an engagement hole 13 used for temporarily holding a mounting bracket 25 (see FIG. 1) described later when the vertical frame member 9 is mounted on the column 1.
A screw insertion hole 12 used for screwing to the fittings 25 and 26 is formed.

The horizontal decorative frame 6 is a strip having a U-shaped cross section and is formed by extrusion or drawing using aluminum or the like as a material. A plurality of ribs 21 are provided on the inner side surface of the horizontal decorative frame 6 so as to project in the front-back direction along the longitudinal direction. As shown in FIGS. 3 and 4, the ribs 21 forming a pair at the front and rear of the rib 21 form a total of four horizontal gaps between the ribs 21 in the vertical direction. As for the horizontal decorative frame 6 which is arranged on the upper side of these gaps, the above-mentioned nut plate 1 is provided in the gap at the uppermost position.
5 is sandwiched up and down and held, and in the gap one below it,
The bent plate portion 10 of the vertical frame member 9 is held, and a space below the folded plate member 10 is a space for allowing the bolt head of the bolt 23, and the horizontal frame member 4 and the like described above are provided in the space at the lowest position. It is designed to be sandwiched and held vertically. In this horizontal decorative frame 6, the gap formed between the projecting edges of the front and rear ribs 21 is a horizontal slit portion 7 for escaping interference with the fence bar 3 held by the horizontal frame member 4. ing. It goes without saying that if the horizontal decorative frame 6 is turned upside down, it can be used as a lower arrangement.

When the bolt 23 screwed into the nut plate 15 is tightened through the bent plate portion 10 of the vertical frame member 9, the bent plate portion 10 and the nut plate 15 sandwich the rib 21 between them. As it comes to be attached, the upper and lower horizontal decorative frames 6, 6 and the left
The right vertical frame members 9 and 9 can be connected in a frame shape.
As a result, the mutual distance between the upper and lower horizontal decorative frames 6 and 6 and the mutual distance between the upper and lower horizontal frame members 4 and 4 are fixed, so that the fence bar 3 can be removed from these horizontal frame members 4 and 4. There is no. Also,
At both ends of the horizontal decorative frame 6, the gaps in which the horizontal frame members 4 are held are closed by the vertical frame members 9, so that the horizontal frame member 4 does not fall out of the horizontal decorative frame 6.

By the way, the length of the horizontal frame member 4 and the length of the horizontal decorative frame 6 should originally be the same length in order to prevent the positional displacement of the both in the left-right direction. However, these lengths may be cut depending on the circumstances of each installation site. In such a case, the end portion (cutting position) of the horizontal frame member 4
In the vicinity of, the tool insertion hole must be purposely drilled for the bolt 23 that fastens the bent plate portion 10 of the vertical frame member 9 and the nut plate 15. Therefore, in order to save such troubles, the length of the horizontal frame member 4 is made shorter than that of the horizontal decorative frame 6, and the end portion adjusting plate 19 corresponding to half the shortened length is provided on the horizontal frame member 4. It is arranged at both ends of. A tool insertion hole 20 is vertically formed through the end adjusting plate 19 in correspondence with the positioning of the bolt 23.

Next, the support column 1 will be described. As shown in FIG. 5, the column 1 is a square member having stepwise grooves 35 on its four sides so that its planar shape is an X shape, and is formed by extrusion or drawing of aluminum or the like. There is. The stepped groove 35 includes the opposed protruding ribs 36, 36.
The outer side is a front side stepped portion 37 and the inner side is a middle side stepped portion 38 across. Of these, the front side step portion 37 is for fitting the vertical frame member 9 (see FIG. 1) of the fence main body 2, and the middle side step portion 38 is various fittings (mounting brackets and bolts) described later. It is for storing items such as. Further, through holes 34 are formed in the four corners of the flat portion of the support column 1 so as to penetrate along the longitudinal direction thereof. As shown in FIG. 1, upper and lower mounting brackets 25 and 26 used for connection with the fence main body 2 are held on the column 1 using the stepped groove 35, and an anchor ( A nail member 27 for driving is externally fitted and screwed, and a lid member 29 is fitted to the upper end portion using the through hole 34.

As shown in FIG. 7 and FIG.
Is provided with a locking piece 31 facing the strut 1 side at the upper end of its main body and a narrow receiving piece 32 facing the opposite side (fence main body 2 side) at the lower end. A female screw portion 33 is provided at a substantially central portion in the vertical direction so as to project toward the support 1 by burring. This mounting bracket 25
Is the widest part of the middle step 38 of the column 1 (see FIG.
The main body is slidably fitted to the support 1), and the receiving piece 32 is used so as to project to the outside of the column 1 from between the opposed projecting ribs 36. The mounting bracket 26 is substantially the same as the mounting bracket 25 except that the mounting bracket 26 has an L-shape as a whole, and an internal thread portion 40 formed by burring is provided in the vicinity of the upper end portion of the main body portion. The main body is slidably fitted in the widest portion of the step portion 38,
A bent piece 39, which is formed on the lower side and has a narrow width, is used so as to project to the outside of the column 1 from between the opposed protruding ribs 36, 36.

As shown in FIG. 6, the lid member 29 is provided with dowel legs 30 fitted in the through holes 34 of the support column 1 at the four corners thereof so as to project downward. The back surface of the lid member 29 is formed in a concave shape except the outer peripheral edge in order to escape the locking piece 31 of the mounting member 25 (see FIG. 8).

[0016]

Operation of the Embodiment The most general example of the assembly procedure will be described. In FIG. 1, the attachment of the shoe member 27 and the like on the column 1 and the assembling of the fence main body 2 are performed before the factory shipment, and only the assembling of these two is performed at the installation site.

To assemble the fence main body 2, as shown in FIG.
First, the horizontal decorative frames 6 and 6 are slidably fitted to the upper and lower horizontal frame members 4 and 4 from one end side to the other end side in the longitudinal direction (see FIGS. 3 and 4). Next, the fence bar 3 is fitted into each of the insertion holes 5 of the upper or lower horizontal frame member 4,
The end of the fence bar 3 is brought into contact with the inner bottom surface of the horizontal decorative frame 6. When all the bars 3 have been fitted, the insertion holes 5 of the other horizontal frame member 4 are fitted to the other ends of the bars 3. This makes the shape of a ladder as a whole. Then, the end adjusting plate 19 is also slid and inserted into the horizontal decorative frames 6 and 6 so as to abut against both ends of the horizontal frame members 4 and 4.

Predetermined end portions of the horizontal decorative frames 6 and 6 (ribs 21)
The bent plate portions 10 and the nut plates 15 of the vertical frame members 9, 9 are inserted into the upper and lower portions of the vertical frame members 9, and the bolts 23 are used for tightening. This completes the assembly of the fence main body 2.

On the other hand, as shown in FIG. 1, a shoe member 27 is fitted to the lower end of the column 1 and fixed by screws or the like. As a screw receiver in this case, a nut member (not shown) may be inserted into the middle side step portion 38 (see FIG. 5) of the stepped groove 35.

After bringing the fence main body 2 and the support post 1 assembled in this way to the installation site, first, with respect to the support post 1 in the standing posture, from the upper opening of the staircase-shaped groove 35, the mounting bracket is attached. Fit and hold 26 and 25. As shown in FIG. 8, the mounting bracket 26 arranged on the lower side is the shoe member 2
The fitting 25 that is positioned by abutting on the upper end of 7 and is positioned on the upper side is positioned by hooking the locking piece 31 thereof at the upper end of the column 1. Therefore, the engaging piece 1 of the fence main body 2 (vertical frame member 9) is attached to the receiving piece 32 of the mounting bracket 25 arranged on the upper side.
3 (see FIG. 2) and the upper edge of the opening is hooked, the lower surface of the fence main body 2 naturally comes to rest on the bent piece 39 of the mounting bracket 26 arranged on the lower side. This is also performed on the other pillar 1 on the other end side of the fence main body 2 to leave it in a temporary bridging state, and the female screw portion 33 of the upper mounting bracket 25 and the female screw portion of the lower mounting bracket 26 are placed. Four
The bolt 43 is screwed into the rail main body 2 (vertical frame member 9) from the screw insertion hole 12 side. After that, by fitting the lid member 29 to the upper ends of the columns 1 and fixing the shoes member 27 by the anchor, the assembly of the safety fence is completed.

There are various types of horizontal decorative frames 6 having different lengths (20 mm at a pitch of 200 mm to 50 mm).
It has been prepared (up to 00 mm), and by selectively combining these, it is possible to manufacture an enclosure that fits the unique circumstances of each site. Further, since the pillar 1 has stepped grooves 35 (see FIG. 5) formed on its four surfaces, by changing the connecting direction with the fence main body 2,
It is also possible to use this pillar 1 for the corner portion of the enclosure. It is also possible to assemble the door portion as a safety fence by cutting the lower end of the pillar 1 to match the lower surface of the fence body 2 and shortening the fence body 2 in the left-right direction. In this case, the pillar 1 cut as described above is swingably attached to another pillar 1 erected by the shoe member 27 or the like with a hinge (not shown). Even when this hinge is attached to the column 1, the stepped groove 35 described above is used.

[0022]

The present invention has the following effects due to the above-described structure. Since it is possible to connect the respective members by the screw tightening work, the welding work is unnecessary, and as a result, the assembly is easy and the appearance is good.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing an enlarged main part of the fence main body.

FIG. 3 is an enlarged sectional view taken along line III-III of FIG.

FIG. 4 is an enlarged sectional view taken along line IV-IV of FIG.

FIG. 5 is an enlarged plan view of a column.

FIG. 6 is an enlarged bottom view of the lid member.

FIG. 7 is a partially cutaway perspective view showing an enlarged upper side mounting bracket for the fence main body.

FIG. 8 is a diagram for explaining a procedure for attaching the fence body and the support.

[Explanation of symbols]

 1 Support 2 Fence main body 3 Fence bar 4 Horizontal frame material 5 Insertion hole 6 Horizontal decorative frame 7 Horizontal slit part 9 Vertical frame material

Claims (1)

[Claims] 1. A pair of upper and lower horizontal frames having two columns provided at predetermined intervals and a fence main body bridged between the columns, the fence main body having insertion holes for fence bars at predetermined intervals. Material, a horizontal decorative frame with a U-shaped cross section that is slidably fitted to the outside of these horizontal frame members, a plurality of fence bars whose both ends are fitted into the fence bar insertion holes of the upper and lower horizontal frame materials, and A safety fence that has a pair of left and right vertical frame members that connect both ends of a horizontal decorative frame.