JP4178084B2 - Clearance bar for free access floor - Google Patents

Description

  The present invention relates to a clearance bar for a free access floor that is used when a bufferable clearance is provided on the free access floor.

  Conventionally, as a free access floor, a square-shaped synthetic resin strut integrated floor panel having a required number of mounting portions along the outer peripheral edge is laid on a required reference floor at a predetermined interval, A rectangular plate-shaped metal groove cover panel is fitted and placed between adjacent floor panels via mounting parts, and wiring is provided between the groove cover panels and both floor panels. There are known ones configured to form a groove space for use.

  In the conventional free access floor configured as described above, cables such as OA equipment and conduits are laid in the wiring groove space. When layout or refurbishment is performed, it is said that the groove cover panel can be removed to easily add wiring.

  By the way, the above conventional free access floor has a structure in which a support-integrated floor panel and a groove cover panel provided with a placing portion are accurately aligned according to the construction dimensions, and even when it is installed, The floor panel and groove cover panel cause thermal expansion / shrinkage due to the incident light, resulting in damage to the joint between the two, or the free access floor itself swells up, creating a large gap at the wall. This will cause problems such as crushing. In particular, the floor panel is made of a synthetic resin material, and the groove cover panel is made of a material having a different coefficient of thermal expansion, respectively, so that it is very susceptible to the adverse effects of thermal expansion and contraction. is there.

  In order to solve such problems in the conventional free access floor, Japanese Patent Application Laid-Open No. 8-74406 (Patent Document 1) has a recess formed on the outer edge of a support-integrated floor panel provided with a mounting portion. In addition, an elastic buffer tongue piece is provided in the recess so as to project outward, and the groove cover panel that is placed in a fitting manner on the mounting portion with the buffer tongue piece outwards. There has been disclosed a structure which is configured to form a clearance with the side edge of the floor panel while being biased.

  In the conventional example configured as described above, the impact force generated by the thermal expansion and contraction of the floor panel and the groove cover panel is relaxed by the buffer tongue while being released to the clearance.

However, in the above conventional example, the clearance is inevitably small because the clearance is only formed through the buffer tongue between the side edge of the floor panel and the groove cover panel to be placed. As a result, not only is it not possible to cope with a large impact force caused by thermal expansion and contraction of the floor panel and the groove cover panel, but the cushioning force of the cushioning tongue itself must be very weak. It is something that does not get. In addition, the clearance forms a recess on the outside of the floor panel as described above, and a buffer tongue piece is formed in the recess, so that the structure of the floor panel itself is complicated, and its production is very troublesome and laborious. This is not only costly, but also tends to be expensive.
JP-A-8-74406

  As described above, in the conventional example, not only the large impact force due to the thermal expansion / shrinkage of the floor panel or the groove cover panel cannot be dealt with, but the structure becomes complicated, and its production is troublesome and troublesome, It tends to be expensive.

  The present invention is intended to solve the problems of the conventional example, and a boarder laid on the wall or pillar side of a boarder panel, etc. while being fitted and placed on the mounting part of the support-integrated floor panel. -A clearance is formed between the members so that they can be cushioned, and the floor panel and groove cover panel can be effectively released while mitigating the large and small impact force caused by thermal expansion and contraction. Providing an inexpensive free access floor clearance bar that can not only reliably prevent the floor itself from bulging, but also can be easily cut into a required length at the construction site. It is in.

In order to achieve the above-mentioned object, the invention according to claim 1 of the present invention is characterized in that a long cross-section substantially downward U-shaped clearance bar body that can be fitted to a mounting portion constituting a floor panel, The clearance bar body is formed of a shock-absorbing piece having a required width and having a protrusion formed along the longitudinal direction of one side of the clearance bar body, and the inner surface of the top wall of the clearance bar body extends along the longitudinal direction. A gist of a clearance bar for a free access floor, characterized in that a sliding stop ridge for a mounting portion is formed .

  According to a second aspect of the present invention, the clearance bar main body and the buffer piece are integrally formed of a synthetic resin material. Is a summary.

Since the invention according to claim 1 is configured as described above, the clearance bar main body can be easily fitted and placed on the placement portion of the floor panel via the placement portion sliding stop protrusion , and It is possible to securely set the clearance between the board member and the board member laid on the wall or pillar side through the buffer piece so that the clearance can be buffered. Effectively relieving the impact force of the floor panel and groove cover panel due to thermal expansion and contraction, and effectively escaping them, and always preventing damage at the joints between them or swelling of the free access floor itself. It can be done.

  Since the invention according to claim 2 is configured as described above, not only can the clearance bar be manufactured easily and inexpensively, but it is appropriately cut to a required length at the construction site, It can be used for construction.

The best mode for carrying out the present invention will be described below based on an embodiment shown in the drawings.

1 to 3 show an embodiment of the present invention. In the figure, reference numeral 1 denotes a long synthetic resin clearance bar, and reference numeral 2 denotes a cross-sectional downward U-shape constituting the clearance bar-1. The clearance bar main body having a shape is set to a required width so that the clearance bar main body 2 can be fitted and mounted on the mounting portion 8 of the post-integrated floor panel 6 described later. Reference numeral 3 denotes a slipping protrusion for a mounting portion of a required strip projecting on the inner surface of the top wall along the longitudinal direction of the clearance bar main body 2, and 4 is a length along the longitudinal direction of the clearance bar main body 2. A substantially downwardly-curved cushioning piece having elasticity, which is formed on one outer upper end portion in a lateral direction, is configured to have a required width so as to form a predetermined clearance 5.

  In addition, 6 is a square-shaped synthetic resin column-integrated floor panel having a required number of columns 7 at the lower end, and 8 is a required number of substantially cylindrical mountings formed along the outer peripheral edge of the floor panel 6. Part. 9 is a rectangular metal plate groove cover panel that can be freely fitted to the mounting portion 8. The groove cover panel 9 is formed to have substantially the same length as the floor panel 6. A latching flange (not shown) is provided around the outer peripheral edge so as to protrude downward. Reference numeral 10 denotes a square metal plate groove cover panel which can be fitted and placed on the mounting portion 8. The groove cover panel 10 has a width substantially equal to the groove width to be partitioned. In addition, a latching flange (not shown) is provided around the outer peripheral edge so as to protrude downward. 11 is a square-snow-shaped synthetic resin strut-integrated boarder panel having a required number of struts 12 at the lower end, 13 is a baseboard, 14 is a carpet, 15 is a reference floor, 16 is a groove for wiring. -Indicates each.

  In the embodiment configured as described above, as shown in FIG. 2, the floor panel 6 is laid on the reference floor 15 at a predetermined interval, and between the adjacent floor panels 6, the mounting portions 8. A rectangular groove cover panel 9 and a square groove cover panel 10 are suitably fitted and mounted in a bridged manner through the gaps between the groove cover panels 9 and 10 and the adjacent floor panel 6. The wiring groove space 16 is partitioned.

Then, at a required boarder location such as near the wall of the reference floor 15, the boarder panel 11 is laid in series while maintaining a predetermined clearance 5 with the floor panel 6 positioned on the outermost side. . After that, the clearance bar main body 2 of the clearance bar-1 is fitted and placed on the outer placement portion 8 of the floor panel 6 located on the outermost side via the placement portion sliding stop protrusion 3 , and the buffer piece. The free end 4 is brought into contact with the outer surface of the boarder panel 11 to form a bufferable clearance 5. At this time, since the clearance bar-1 is fitted and mounted on the mounting portion 8 via the mounting portion sliding stopper protrusion 3, it can be easily and reliably set. Moreover, the clearance bar-1 is preferably cut into a required length at the construction site and used for construction. When the floor panel 6, the groove cover panel 9, 10, or the boarder panel 11 is thermally expanded or contracted due to a change in temperature or the like, a shock piece 4 is generated. Therefore, the impact force can be relaxed and escaped to the clearance 5 to reliably prevent breakage at each joint and swelling of the free access floor itself.

  In the embodiment described above, the buffer piece 4 is projected on one side of the clearance bar main body 2, but the invention is not limited to this. A ridge-shaped buffer piece may be formed.

It is a partial expansion perspective view which shows one Example of this invention. It is a perspective view which shows the use condition of the clearance bar-1 of Example 1. FIG. 3 is a partially enlarged cross section showing a usage state of the clearance bar-1 of Example 1. FIG.

Explanation of symbols

1 Clearance bar
2 Clearance bar body
3 ridge 4 buffer piece 0 5 clearance 6 floor panel 8 mounting part

Claims (2)

Elongated cross section downwardly U-shaped clearance bar that is freely fitted on the mounting portion constituting the Furoapane Le - the body and, the clearance bar - at least collision in the longitudinal direction of the one side of the body It is formed of a buffer piece having a required width having elasticity formed in a strip, and a slipping protrusion for mounting portion is formed on the inner surface of the top wall of the clearance bar body along the longitudinal direction thereof. Clear bar for free access floor. The clearance bar - the body and the cushioning member is characterized by comprising integrally formed of a synthetic resin material, according to claim 1, wherein the flip - floor for clearance bar -.