JPH083661Y2 - Lower frame material - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a lower frame material used as a sledge or a sill.

[Prior Art] Conventionally, the lower surface of this type of skid is finished smooth as shown in FIG.

[Problems to be solved by the invention] When laying the wedge 1 in an opening connecting rooms to each other, a floor board 2 is struck against the nail 1, and the nail 1 is laid on the floor 2. Although there is no problem at all when the floorboard 2 is struck and constructed, when the fitting between the wedge 1 and the floorboard 2 is poor, a notch is often formed along the lower surface longitudinal corner of the wedge 1, It took a lot of time and labor to insert the floorboard into this notch for construction.
If this notch is formed in the factory in advance, the construction will be easy, but instead, it was not possible to butt the floorboard or lay the skid 1 directly on the floorboard.

[Means for Solving the Problem] In order to solve the above-mentioned problems, the present invention is one in which two kerfs are formed on the lower surface of the lower frame member near both ends in the longitudinal direction thereof. The details will be described below with reference to the drawings.

[Embodiment] In FIG. 1, 1a is a wedge, and two kerfs 3 are formed on the lower surface along the longitudinal direction by a saw or the like. The position of the cut groove 3 is preferably about 3 to 10 mm from the end. If the edge is too close to the edge, the edge may be chipped. Conversely, if the edge is too far from the edge, it will be described later that it takes time and effort to form a notch into which the floorboard is inserted.

Further, it is desirable that the depth of the cut 3 be slightly larger than the thickness of the floor plate.

Now, when the floorboard is struck against the wedge 1a for construction, or when it is laid on the floorboard, the wedge 1a is used as it is,
When inserting the floorboard into the notch formed in the shoe 1a, cut out the dotted line portion shown in FIG. 1 to form the notch, and insert the floorboard 2 into this notch as shown in FIG. Of. FIG. 3 shows the threshold 1b, and the notch can be formed by cutting off the dotted line portion similarly to the skid 1a.

[Advantage of the Invention] Since the present invention is configured as described above, it corresponds to the thickness and length of the floor plate for inserting the floor plate by simply making horizontal cuts from both side surfaces in the longitudinal direction of the lower frame member. A lower frame material having the cutouts is obtained. Further, since the lower frame member has two cut grooves formed inward in the width direction with respect to both side end portions in the longitudinal direction, the notched space portion below the lower frame member is not closed, If the floor board is constructed so as not to reduce the strength of the lower frame material and it is not necessary to insert the edge of the floor board, use it as it is without notching on the side surface of the lower frame material. It is also possible to accommodate floor boards of various lengths without impairing the strength.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a sectional view showing a construction state, FIG. 3 is a sectional view showing another embodiment of the present invention, and FIG. 4 is a conventional lower frame. It is sectional drawing which shows the construction state of a material. In the drawings, 1 is a lower frame member and 2 is a kerf.

Claims (1)

[Scope of utility model registration request] 1. The depth of the lower frame member (1) is the same as or substantially the same as the thickness of the floor board constructed along both side faces in the longitudinal direction of the lower frame member (1). A lower frame member having two cut grooves (3) located along the both side surfaces and on the inner side in the width direction with respect to both side ends thereof and formed in parallel on the lower surface of the lower frame member.