JP3209084U - Underfloor inspection port - Google Patents

Abstract

An underfloor inspection port having high connection strength and excellent effect of smoothing a corner portion is provided. An underfloor inspection port includes four metal frame members, adjacent metal frame members are perpendicular to each other, a butt joint portion is fixedly connected by a non-metallic corner covering member, and the non-metallic corner covering member is: It has an L-shaped non-metallic fitting corner 1-A, and the L-shaped non-metallic fitting corner covers the adjacent ends of two mutually perpendicular metal inlaid strips 1-B. The outer extension of the metal inlaid strip is fixedly connected to the corresponding metal frame member. Since the non-metal corner covering member employs the metal inlaid strip 1-B, the connection strength is greatly improved, and the non-metal fitting corner portion 1-A occupies the entire corner portion. The corner portion of the underfloor inspection port having the covering member becomes smoother and can prevent burrs. [Selection] Figure 3

Description

  The present invention relates to a metal frame, and particularly to an underfloor inspection port, and belongs to the technical field of metal fitting decoration members.

  For example, an underfloor inspection port that is attached under a table to place a container such as a sake bottle is actually a metal frame formed of a metal mold. As an underfloor inspection port, what was described in the following patent document 1, for example is known. At the connection corner, the frame material is directly fastened or rivet-joined by a metal fastener, but burrs are generated when processing the metal material, and it is easy to cause scratches and hook on clothes. .

JP 2014-95278 A

  In order to avoid the corner portion from becoming relatively smooth and causing an acute-angle burr, a plastic corner covering member may be fitted into the corner portion of such a metal frame. As far as the applicant knows, the existing plastic corner covering member is a pure plastic member, not only has the drawback of low connection strength, but also has a narrow effect of smoothing the corner part, so that the corner part is smooth. Absent.

  An object of the present invention is to propose an underfloor inspection port having high connection strength and an excellent effect of smoothing a corner portion in view of the above-described drawbacks of the prior art.

  In order to achieve the above object, the basic technical plan of the floor inspection port of the present invention is as follows.

  The present invention comprises four metal frame members, the adjacent metal frame members are perpendicular to each other, the butt joint locations are fixedly connected by a non-metal corner cover member, and the non-metal corner cover member is an L-shaped non-piece. A metal fitting corner, the L-shaped non-metal fitting corner covering and fixing adjacent ends of two mutually perpendicular metal inlaid strips and extending the metal inlaid strip The part is fixedly connected to the corresponding metal frame member.

  In the present invention, the cross section of the metal frame member is formed by a hollow vertical edge having a strip-type hole, an upper horizontal outer bent edge, and a lower horizontal inner bent edge. Is desirable.

  Further, the L-shaped non-metal fitting corner of the non-metal corner covering member is a vertical wall corresponding to the vertical edge, the outer bent edge, and the inner bent edge of the metal frame member. Preferably, the metal inlaid strip has an outer bent wall portion and an inner bent wall portion, and adjacent ends of the metal inlaid strip are covered and fixed in the vertical wall portion.

  Further, a cross-section of the metal inlaid strip is adapted to the strip-type hole of the vertical edge portion of the metal frame member, and the outer extension portion of the metal inlaid strip corresponds to the vertical edge of the corresponding metal frame member. It is desirable to insert into the strip type hole of the part and to be fixedly connected by a rivet joint.

  Furthermore, the non-metal fitting corner can be a normal plastic fitting corner or a rubber fitting corner.

  The non-metallic corner covering member of the present invention uses a metal inlaid strip to replace the conventional plastic member, so that the connection strength is greatly improved, and the non-metallic fitting corner portion can be used as a whole when necessary. It can be occupied, which makes the corner of the underfloor inspection port smoother and has no burrs.

FIG. 1 is a structural schematic diagram of one embodiment of the present invention. FIG. 2 is a plan view of FIG. FIG. 3 is a structural schematic diagram of the outer plastic corner covering member in FIG. FIG. 4 is a bottom view of FIG.

  An underfloor inspection port having a plastic corner covering member according to the present embodiment includes a rectangular outer frame 1 and an inner frame 2 fitted in the rectangular outer frame 1, as shown in FIGS. 1 and 2. Each of the outer frame 1 and the inner frame 2 includes four outer metal frame members 1-1 and four inner metal frame members 2-1. The cross section of the outer metal frame 1-1 includes a hollow vertical edge 1-V having a strip-type hole, an upper horizontal outer bent edge 1-U, and a lower horizontal inner bent edge. 1-D, substantially Z-shaped, adjacent outer metal frame members 1-1 are perpendicular to each other, butt joint locations are fixedly connected by an outer plastic corner covering member 1-2, and adjacent The inner metal frame members 2-1 are perpendicular to each other, and the butt joint locations are fixedly connected by the inner plastic corner covering member 2-2.

  The outer plastic corner covering member 1-2 is substantially a plastic covering member. As shown in FIGS. 3 and 4, the specific structure of the L-shaped plastic fitting corner 1-A is as follows. Vertical wall portion AV corresponding to vertical edge portion 1-V, outer bent edge portion 1-U and inner bent edge portion 1-D of outer metal frame member 1-1, outer bent wall portion A- Adjacent ends of two mutually perpendicular metal inlaid strips 1-B having U and inner bent wall portions AD are covered and fixed in the vertical wall portions AV. The cross section of the metal inlaid strip 1-B matches the strip type hole of the vertical edge 1-V of the outer metal frame 1-1, and the outer extension of the metal inlaid strip 1-B, when assembled, A corresponding metal frame member 1-1 is inserted into a strip-type hole and fixedly connected by a rivet joint.

  Since it is not difficult to analogize the structure of the inner metal frame member 2-1 and the inner plastic corner covering member 2-2 and their corresponding relationship, details will not be touched.

  The underfloor inspection port having the plastic corner covering member of the present embodiment is inserted using a metal member and fixed by a rivet joint, is highly reliable, has sufficient strength and rigidity, and has a plastic fitting angle. It can be seen that the portion occupies the entire corner portion, is seamlessly connected to the metal frame material, and the corner portion is smooth, smooth and flat.

  In addition to the examples described above, the present invention can have other embodiments. Any technical proposal made by equivalent replacement or equivalent conversion belongs to the protection scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Outer frame 1-1 Metal frame material 1-2 Plastic corner covering member 1-A Plastic fitting corner 1-B Metal inlaid strip 1-D Inner bending edge 1-U Outer bending edge 1-V Vertical edge 2 Inner frame 2-1 Metal frame material 2-2 Plastic corner covering member AD Inner bent wall part AU Outer bent wall part AV Vertical wall part

Claims (6)

In the underfloor inspection port comprising four metal frame members, the adjacent metal frame members are perpendicular to each other, and the butt joint location is fixedly connected by a non-metal corner covering member,
The non-metallic corner covering member has an L-shaped non-metallic fitting corner,
The L-shaped non-metallic mating corner covers and fixes adjacent ends of two mutually perpendicular metal inlaid strips;
The extended part of the metal inlaid strip is fixedly connected to the corresponding metal frame member,
An inspection floor below the floor.   The cross section of the metal frame member is formed by a hollow vertical edge having a strip-type hole, an upper horizontal outer bent edge, and a lower horizontal inner bent edge. The underfloor inspection port according to claim 1.   The L-shaped non-metal fitting corner of the non-metal corner covering member is a vertical wall corresponding to the vertical edge, the outer bent edge, and the inner bent edge of the metal frame member, 3. The apparatus according to claim 2, further comprising an outer bent wall portion and an inner bent wall portion, wherein adjacent ends of the metal inlaid strip are covered and fixed in the vertical wall portion. Under floor inspection port.   The cross section of the metal inlaid strip is matched with the strip-type hole of the vertical edge of the metal frame member, and the outer extension of the metal inlaid strip is formed of the vertical edge of the corresponding metal frame member. The underfloor inspection port according to claim 3, wherein the underfloor inspection port is inserted into the strip type hole and fixedly connected by a rivet joint.   The floor inspection port according to any one of claims 1 to 4, wherein the non-metal fitting corner is a plastic fitting corner.   The underfloor inspection port according to any one of claims 1 to 4, wherein the non-metal fitting corner is a rubber fitting corner.

Images