JP4117591B2 - Structure of the floor opening of the underfloor storage - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure of a floor opening of an underfloor storage.
[0002]
[Prior art]
As shown in FIG. 7, a receiving frame 102 is fitted into the floor opening 101 of the conventional underfloor storage, and the auxiliary joists 103 that support the receiving frame 102 from below are the four-side joists 104 of the floor opening 101. It is fixed on the inner side with a stopper 105. The storage body 106 is attached to the under floor space by engaging the upper end flange portion 106 a of the storage body 106 with the receiving frame 102, and a lid 107 that closes the floor opening 101 from above is attached to the receiving frame 102. It is to be put on.
[0003]
[Problems to be solved by the invention]
However, in the above structure, there is a problem that it is not easy to accurately position the auxiliary joist 103 horizontally with the height of the receiving frame 102 in advance and fix the auxiliary joist 103 to the joist 104 with the stopper 105. . Therefore, if the mounting position of the auxiliary joist 103 is shifted up and down or the auxiliary joist 103 is attached obliquely, a gap is generated between the auxiliary joist 103 and the receiving frame 102, or the upper end flange portion 102a of the receiving frame 102 and the floor surface There is an inconvenience that a gap is formed between the two and 108.
[0004]
The present invention has been made to cope with the above-mentioned problems, and its object is to provide a structure of a floor opening of an underfloor storage that can be easily installed by accurately positioning an auxiliary joist. There is.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is directed to a receiving frame having a lid receiving step portion for receiving a lid of the underfloor storage and a locking step portion for locking the upper end flange portion of the storage body. The auxiliary joist that is fitted inside the opening and supports the receiving frame is a structure of the floor opening of the underfloor storage that is fixed to the inner side of the four-rounded joist of the floor opening. It is characterized in that it is fixed to the inner side of the joist with a stopper while being temporarily fixed in a state of being pressed against the receiving frame from below by a substantially L-shaped spring plate piece attached to.
[0006]
In such a floor opening structure, the auxiliary joist is temporarily fixed to the receiving frame in a state of being pressed against the receiving frame from below by a substantially L-shaped spring plate piece, so that the receiving frame is securely fitted to the floor opening. Only the precise mounting position of the auxiliary joist is automatically determined. Accordingly, the auxiliary joists can be easily and accurately constructed by fixing the auxiliary joists to the joists around the four rounds of the floor opening as they are.
[0007]
According to a second aspect of the present invention, in the structure of the first aspect, the upper end of the vertical plate portion of the substantially L-shaped spring plate piece is bent into an inverted U-shaped hook portion, and the locking step portion of the receiving frame is The spring plate piece is attached by engaging the hook portion with a rising edge formed at the inner end.
[0008]
With such a structure, the spring plate piece can be easily attached to the receiving frame simply by engaging the inverted U-shaped hook portion with the rising edge of the receiving frame, so that the workability can be further improved. .
[0009]
According to a third aspect of the present invention, in the structure of the second aspect, the anti-rotation plate portion extends laterally from the tip of the inverted U-shaped hook portion of the spring plate piece, and the anti-rotation plate portion is The spring plate piece is attached in a state of being overlaid on the engaging step portion of the receiving frame.
[0010]
With such a structure, when the auxiliary joist is held on the substantially L-shaped spring plate piece and temporarily fixed, the spring plate piece is inward of the floor opening with the inverted U-shaped hook portion at the upper end of the vertical plate portion as a fulcrum. Even if it tries to rotate, the rotation of the spring plate piece is prevented by the rotation stop plate portion, so that the positioning of the auxiliary joist can be performed more reliably.
[0011]
Furthermore, the invention according to claim 4 is characterized in that, in the structure according to any one of claims 1 to 3, the depression angle between the vertical plate portion and the horizontal plate portion of the substantially L-shaped spring plate piece is 80 to 87 °. It is what.
[0012]
With such a structure, the auxiliary joists are pressed from below with an appropriate pressing force by the horizontal plate portion of the spring plate pieces, so that the auxiliary joists are in close contact with the receiving frame, and the auxiliary joists are not separated from the receiving frame. Even if there is some variation in the thickness, it can be surely positioned by being temporarily fixed in close contact with the receiving frame.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.
[0014]
FIG. 1 is a perspective view of a floor opening of an underfloor storage according to an embodiment of the present invention, FIG. 2 is a sectional view of the opening, FIG. 3 is an enlarged partial sectional view of the opening, and FIG. FIG.
[0015]
In this embodiment, as shown in FIGS. 1 and 2, a rectangular floor opening 1 is formed in the floor surface 2, and the four circumferences of the floor opening 1 are surrounded by joists 3. A receiving frame 4 is fitted inside the floor opening 1.
[0016]
The receiving frame 4 is a rectangular frame made of an extruded metal member such as aluminum. As shown in FIG. 3, the upper end flange portion 4a, the lid receiving step portion 4b for receiving the lid 5, and the storage body 6 And a locking step portion 4c for locking the upper end flange portion 6a. The lid receiving step 4b of the receiving frame 4 is formed with a recessed groove 4d for receiving the packing material 7, and a rising edge 4e is formed at the inner end of the locking step 4c.
[0017]
On the rising edge 4e of the receiving frame 4, a substantially L-shaped spring plate piece 8, as shown in FIG. 4, that is, a metal spring plate is bent into a substantially L shape, and the vertical plate portion 8a and the horizontal plate portion 8b. A spring plate piece 8 is attached. The spring plate piece 8 temporarily fixes the auxiliary joist 9 with the horizontal plate portion 8b pressed against the receiving frame 4 from below. The upper end of the vertical plate portion 8a is bent into an inverted U shape to form a hook portion. As shown in FIG. 3, the spring plate piece 8 can be easily attached to the receiving frame 4 simply by engaging the hook portion 8c with the rising edge 4e of the receiving frame 4 as shown in FIG. Yes. Further, the front end of the horizontal plate portion 8b is bent obliquely downward into a “<” shape to form a guide portion 8d, and the auxiliary joist 9 is easily fitted inside the spring plate piece 8 by this guide portion 8d. Be able to. The spring plate piece 8 may be formed of elastic plastic.
[0018]
The depression angle θ between the vertical plate portion 8a and the horizontal plate portion 8b of the spring plate piece 8 is preferably set in the range of 80 to 87 °. Since it is pressed from below with an appropriate pressing force, the auxiliary joist 9 is in close contact with the receiving frame 4 and the auxiliary joist 9 and the receiving frame 4 are not separated from each other, and even if there is some variation in the thickness of the auxiliary joist 9 It can be temporarily fixed to the receiving frame 4 in close contact.
[0019]
The auxiliary joists 9 support the receiving frames 4 from below. Four auxiliary joists 9 are arranged inside the joists 3 around the four sides of the floor opening 1 and are fixed by stoppers 10a. The four locking sides 4c of the four sides are fixed by a stopper 10b. It is sufficient that the length of the auxiliary joists 9 is about 2/3 of the length of one side of the receiving frame 4. As shown in FIG. 1, each auxiliary joist 9 is temporarily attached by two spring plate pieces 8. You can stop it.
[0020]
With the structure of the floor opening of the underfloor storage as described above, the auxiliary joist 9 is temporarily pressed against the receiving frame 4 from below by the horizontal plate portion 8b of the substantially L-shaped spring plate piece 8, and temporarily attached to the receiving frame 4 Since the receiving frame 4 is securely fitted to the floor opening 1 and the upper end flange portion 4a of the receiving frame 4 is locked to the opening edge of the floor surface 2, the mounting position of the auxiliary joists 9 can be accurately determined. (Height position) is automatically determined. Therefore, if the auxiliary joist 9 is fixed to the joist 3 on the four sides of the floor opening with the stopper 10a and the locking step 4c of the receiving frame 4 is fixed to the auxiliary joist 9 with the stopper 10b in the state as it is, it is simple and accurate. In addition, it is possible to construct the floor opening of the underfloor storage. Then, the upper end flange portion 6a of the storage body 6 is locked to the locking step 4c of the receiving frame 4 to install the storage body 6 under the floor, and the lid 5 is attached to the receiving frame 4 to open the floor opening. When 1 is closed, the underfloor storage is completed.
[0021]
By the way, when the auxiliary joist 9 is fixed to the receiving frame 4 by the stopper 10b without using the substantially L-shaped spring plate piece 8, even if the vertical mounting position of the auxiliary joist 9 can be accurately positioned, Since it is difficult to accurately position the mounting position in the direction, a gap is generated between the auxiliary joists 9 and the joists 3, and the auxiliary joists 9 cannot be fixed to the inner surface of the joists 3 with the stoppers 10a. The position is shifted to the outside and cannot be fitted inside the floor opening 1, making the construction difficult.
[0022]
On the other hand, when the auxiliary joist 9 is temporarily fixed with the spring plate piece 8 as in the present invention, the auxiliary joist 9 can be moved in the lateral direction in addition to being able to accurately position the auxiliary joist 9 in the vertical direction. Therefore, even if there is a slight gap between the auxiliary joists 9 and the joists 3 when the receiving frame 4 is fitted to the floor opening 1, the auxiliary joists 9 become more effective as the fasteners 10a are tightened. 3 and finally the auxiliary joists 9 are fixed in close contact with the inner surface of the joists 3, so that the above problem does not occur at all.
[0023]
FIG. 5 is a perspective view of another spring plate piece 80 used in the present invention, and FIG. 6 is an enlarged partial cross-sectional view of a floor opening according to another embodiment of the present invention using the spring plate piece 80.
[0024]
The substantially L-shaped spring plate piece 80 is obtained by extending a detent plate portion 8e in the lateral direction from the tip (lower end) of the inverted U-shaped hook portion 8c at the upper end of the vertical plate portion 8a. Since other configurations are the same as those of the spring plate piece 8, the same reference numerals are given to the same members in FIG.
[0025]
As shown in FIG. 6, the spring plate piece 80 has the hook portion 8c at the upper end engaged with the rising edge 4e of the receiving frame 4, and the detent plate portion 8e is overlaid on the locking step portion 4c of the receiving frame. Is attached to the receiving frame 4. When the spring plate piece 80 is attached to the receiving frame 4 in this way, when the auxiliary joist 9 is fitted inside the spring plate piece 80 and temporarily fixed, the spring plate piece 80 is an inverted U-shaped hook portion at the upper end of the vertical plate portion 8a. Even if an attempt is made to rotate inward of the floor opening 1 using 8c as a fulcrum, the rotation plate 9e prevents rotation of the spring plate piece 80, so that the auxiliary joist 9 can be positioned more reliably. .
[0026]
As mentioned above, although the structure of the floor opening part of the present invention has been described with reference to two embodiments, the present invention is not limited only to these embodiments, for example, a vertical plate of a substantially L-shaped spring plate piece. Various design changes such as attaching the upper end of the part to the receiving frame with a stopper or changing the cross-sectional shape of the receiving frame are allowed.
[0027]
【The invention's effect】
The structure of the floor opening of the underfloor storage of the present invention has a remarkable effect that the workability is greatly improved because the auxiliary joists can be positioned accurately and easily attached. In particular, when the hook portion at the upper end of the vertical plate portion of the spring plate piece is engaged with the rising edge of the receiving frame, the workability is further improved because the spring plate piece can be attached very easily with one touch. When using a spring plate piece with an anti-rotation plate portion extending from the tip of the hook portion, the rotation of the spring plate piece is prevented, so that the auxiliary joist can be positioned more reliably. When the depression angle between the vertical plate portion and the horizontal plate portion is set to 80 to 87 °, an effect that the positioning can be surely performed even if there is some variation in the thickness of the auxiliary joist is obtained.
[Brief description of the drawings]
FIG. 1 is a perspective view of a floor opening of an underfloor storage according to an embodiment of the present invention.
FIG. 2 is a sectional view of the opening.
FIG. 3 is an enlarged partial sectional view of the opening.
FIG. 4 is a perspective view of a spring plate piece.
FIG. 5 is a perspective view of another spring plate piece used in the present invention.
FIG. 6 is an enlarged partial sectional view of a floor opening according to another embodiment of the present invention using the spring plate piece.
FIG. 7 is a cross-sectional view of a conventional underfloor storage.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Floor opening part 2 Floor surface 3 joist 4 receiving frame 4a upper end flange part 4b of receiving frame lid receiving step part 4c locking step part 4e rising edge 5 lid 6 storage body 6a upper end flange part 7 of storage body L-shaped spring plate piece 8a Vertical plate portion 8b Horizontal plate portion 8c Hook portion 8d Guide portion 8e Anti-rotation plate portion 9 Auxiliary joists 10a and 10b Stopper θ Angle between vertical plate portion and horizontal plate portion

Claims (4)

A receiving frame having a lid receiving step for receiving the lid of the underfloor storage and a locking step for locking the upper end flange of the storage main body is fitted inside the floor opening, and supports the receiving frame. The floor joist is fixed to the inside of the floor joist around the four sides of the floor opening, and the auxiliary joist is received from below by a substantially L-shaped spring plate piece attached to the receiving frame. The structure of the floor opening of the underfloor storage, which is fixed to the inside of the joist with a stopper while being temporarily fixed while being pressed against the floor. The upper end of the vertical plate portion of the substantially L-shaped spring plate piece is bent into an inverted U-shaped hook portion, and the hook portion is engaged with the rising edge formed at the inner end of the locking step portion of the receiving frame. 2. The structure according to claim 1, wherein a spring plate piece is attached. A spring plate piece is attached in a state in which the rotation stopper plate portion extends in the horizontal direction from the tip of the inverted U-shaped hook portion, and this rotation prevention plate portion is superimposed on the locking step portion of the receiving frame. The structure according to claim 2, wherein: The structure according to any one of claims 1 to 3, wherein a depression angle between the vertical plate portion and the horizontal plate portion of the substantially L-shaped spring plate piece is 80 to 87 °.

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