JPH05287885A - Board rush mat bed - Google Patents

Abstract

PURPOSE:To reduce the weight of a board rush mat bed formed by stacking and sewing three or four soft fiber plates, and to improve the heat insulation and cushioning performance thereof economically by providing an intermediate plate of a specified form. CONSTITUTION:An intermediate sheet 2 sandwiched between a face plate 1 and a bottom plate 3 is formed by combination of a comb-teeth like main body 23, an auxiliary side plate 4 and an auxiliary front plate 5. As the comb-teeth like main body 23, the central plate surface of an original plate is divided into two plates of the same form having plural narrow strips 26 of a designated width and narrow space areas 27 of a designated with by a zigzag cutting line containing an odd number of parallel straight lines of designated dimensions and spaces, and one of them is used.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention aims to reduce the weight of a board tatami floor made by laminating and sewing three or four rectangular soft fiberboards, improve the heat insulation and the feeling of use, and effectively use the materials used. The purpose is to improve the structure.

[0002]

2. Description of the Related Art Recently, board tatami floors such as a soft fiber board laminated tatami floor or a combination of a soft fiber board and a polystyrene foam board have been widely used in place of the straw tatami floor, and have become widely used in Japan. Also building material tatami floor (JIS A591
4) is standardized.

[0003]

The above-mentioned conventional board tatami floor, in which only the soft fiberboard is laminated and sewn, is
Although it is excellent in pressure resistance and dimensional stability, it has a drawback that it is heavy and its cushioning property is low. On the other hand, a combination of soft fiber board and polystyrene foam board that is laminated and sewn is lightweight and has excellent heat insulation and cushioning properties. However, it has problems such as poor durability and air permeability, and troublesome treatment of polystyrene waste materials. In order to solve the above problems,
A tatami floor has been proposed in which a paper honeycomb core and a textured fiberboard are laminated between a face plate and a bottom plate of a soft fiber plate (see, for example, JP-A-62-68961).

In this type of board tatami floor, a plurality of laminated component boards are sewn with tatami threads to provide appropriate flexibility,
It is necessary to have elastic recovery and be integrated,
Those obtained by adhering the constituent members to each other as described in the above publication are unsuitable because the performance as a tatami floor is inferior, or when sandwiching the paper honeycomb core or the textured fiberboard described above. There is a problem that it is difficult to stably maintain the tightness of the stitches at the time of the sewn connection, and the manufacturing becomes troublesome.

[0005]

SUMMARY OF THE INVENTION The present invention is a board tatami floor in which three or four rectangular soft fiberboards are sewn together, and an intermediate board sandwiched between an upper face board and a lower bottom board is provided. , Two same-shaped comb-tooth-shaped main bodies are obtained by the dividing means under the following conditions, and the comb-tooth-shaped main bodies and an auxiliary plate combined with the comb-tooth-shaped main bodies are provided so that the tatami floor has a plurality of narrow spaces This solves the above-mentioned conventional problems.

That is, the comb-tooth-shaped main body of the intermediate plate is an odd number having a predetermined width interval parallel to the side edge of the plate on the central plate surface surrounded by the four wide edges of the original plate having the same shape as the face plate. A continuous line consisting of a straight line and a connecting line that alternately connects both ends of the parallel straight line, and a straight extension line or a right-angled extension line that reaches the plate outer end in opposite directions from the parallel outermost straight line ends. It is one of two isomorphic sheets obtained by dividing by a zigzag cutting line.

In the above comb-tooth-shaped main body, one side and a wide edge portion of a rear edge orthogonal to the one side, and a plurality of narrow strips having a constant width parallel to the side edge from the wide rear edge, have a constant width. The width space portions are arranged in parallel with each other. The auxiliary plate is composed of an auxiliary front plate arranged in contact with the tip of each narrow strip of the comb-tooth-shaped body and an auxiliary side plate arranged along the narrow strip outside the comb-tooth-shaped body. It is a rectangular rectangular plate having a size capable of forming an intermediate plate having the same outer shape as the original plate.

The intermediate plate composed of the comb tooth-shaped main body, the auxiliary front plate and the auxiliary side plate has a width of one plate or two intermediate plates of the same shape which are superposed between the face plate and the bottom plate. A board tatami mat is obtained by integrating a plurality of divided sewing thread sewing lines extending in the longitudinal direction of the board. Needless to say, when two intermediate plates are provided, the intermediate plates may have the same thickness or different thicknesses, and a desired surface protection sheet may be laminated on the upper surface of the face plate and the lower surface of the bottom plate.

Further, the sewing thread is sewn at least at a position where it penetrates one side wide edge of the comb-shaped main body of the intermediate plate and all or part of the narrow strip, and the auxiliary front plate and auxiliary side plate. You have to avoid parts.

Further, the comb-teeth shaped main body of the intermediate plate used in the present invention may be obtained under the following manufacturing conditions. That is, the comb-shaped main body uses the original plate having the same width as that of the face plate and having a length obtained by adding the width of the long wide edge part to one half of the length of the face plate. From the outermost straight line end of the parallel plate, the center plate surface surrounded by is an odd number of straight lines that are parallel to the side edges of the plate It was obtained by dividing into two pieces of the same shape by a continuous zigzag cutting line consisting of right-angled extension lines reaching the plate outer ends in opposite directions.

The above-mentioned two comb-shaped main bodies have an intermediate plate having the same outer shape as the face plate by mutually butting the cutting edges and interposing an auxiliary side plate between the mutually facing right-angled cutting edges. Can be configured. This intermediate plate is 2
The conditions for stacking and using a desired surface protection sheet on the face plate and the bottom plate, and the sewing conditions for sewing threads are the same as those described above.

[0012]

The function of the board tatami floor of the present invention is that between the face plate and the bottom plate,
Since the intermediate plates, which are formed by combining the comb-shaped main body and the auxiliary plate, are interleaved and sewn together, the intermediate plate weight is 30% compared to the case where the conventional one-piece intermediate plate is used. It is possible to reduce by ~ 40% and improve flexibility and cushioning property while maintaining pressure resistance and laminated sewing strength by a plurality of narrow strips extending in the longitudinal direction. The chamber can have better heat insulation.

Further, the comb-teeth-shaped main body of the intermediate plate has the same shape as that of the original plate according to the above-mentioned manufacturing conditions without producing waste material from one original plate.
When the width of the tatami mat can be obtained and the tatami mat size needs to be reduced, the wide edge part and the auxiliary part can be removed by cutting the tip part of the narrow width piece of the comb-shaped main body or the side edge part of the narrow width piece. The width of the wide edge portion of the plate can be maintained at a desired width and can be easily dealt with.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view in which a part of a tatami mat floor is cut away, FIG. 2 is a plan view showing manufacturing conditions of a comb tooth-shaped main body of an intermediate plate, and FIG. 3 is a plan view showing a configuration state of the intermediate plate. In FIG. 1, 1
Is a face plate, 2 is an intermediate plate in which an upper intermediate plate 21 and a lower intermediate plate 22 are stacked, 3 is a bottom plate, the face plate 1, the upper intermediate plate 21 are each 15 mm thick, and the lower intermediate plate 22 and the bottom plate 3 are each 10 mm.
It is a thick, soft fiberboard with a density of 0.25. Reference numeral 6 is a sewing thread for integrally connecting the laminated plates, and the sewing lines are provided in a plurality of rows parallel to the side edges of the plates.

The upper and lower intermediate plates 21 and 22 have upper and lower comb tooth-shaped main bodies 24 and 25 having the same surface shape, and the upper and lower auxiliary side plates 4 respectively.
1, 42 and the upper and lower auxiliary front plates 51, 52 are combined to form a two-ply intermediate plate 2 composed of the comb-shaped main body 23, the auxiliary side plate 4, and the auxiliary front plate 5. FIG. 2 shows the cutting conditions when manufacturing the comb-tooth-shaped main body 2 from the original plate B having the same shape as the face plate 1, and 40 shows the cutting line.

The cutting line 40 is parallel to the side edges of the central plate surrounded by four wide edges of width a on both side edges of the original plate B and width c on the front and rear edges, and has a predetermined width interval b. With an odd number of straight lines 41, connecting lines 42 alternately connecting both ends of the parallel straight lines 41, and a quotient line extension from the ends of the parallel outermost straight lines 41 to the plate outer ends in opposite directions. It is a continuous zigzag single line composed of the line 43, and the cutting line cuts the comb-shaped main body 23 of the same shape from the original plate B into two.
It can be manufactured without producing scraps and scraps. Figure 3
Is the auxiliary side plate 4 along the comb-tooth-shaped main body 23 obtained as described above and the narrow strips 26 on the outside of the comb-tooth-shaped main body, and the auxiliary front plate by contacting the tips of the narrow strips 26. 5 shows a state in which the intermediate plate 2 is configured by arranging 5 pieces.

The original plate B is, for example, 91 cm wide and 182 long.
The width of the front and rear edges is 13 cm, the width of the wide edges of both edges is 9.5 cm, and the predetermined interval b between the parallel straight lines 41 of the cutting line 40 is 4 c.
When the length is m, the number of straight lines is 19, and the number of narrow strips 26 of the obtained comb-tooth-shaped main body 2 is 9. The auxiliary side plate is 9.5 × 169 cm, and the auxiliary front plate 5 is 13 × 8.
91 x 182 by using a 1.5 cm strip
cm intermediate plate 2 is obtained. The weight of the intermediate plate 2 is the original plate B.
Of about 68%.

Under the cutting conditions for obtaining the two comb-tooth-shaped main bodies 23 from the original plate B, a straight line 43 extending from the straight line 41 ends on the outermost sides of the cutting line 40 to the plate outer ends in the opposite directions to each other. Instead, as shown in FIG. 4, straight lines 4 on both outermost sides
The original plate B may be divided by providing a straight line 41 with a right-angled extension line 44 in a direction orthogonal to each other from one end, and the comb-tooth-shaped main body 23 'obtained by this is supplemented as shown in FIG. The intermediate plate 2'can be constructed by the combined arrangement of the side plate 4'and the auxiliary front plate 5 '.

In the previous embodiment, the original plate B having the same shape as the face plate 1 was used to obtain the comb-tooth-shaped main body 23 of the intermediate plate 2. In this case, the auxiliary front plate 5 is required. According to the manufacturing conditions of the comb-tooth-shaped main body 23 ″ as described above, the intermediate plate 2 can be configured by using only the auxiliary side plate 4. That is, FIG. 6 shows another embodiment different from the previous embodiment. FIG. 7 is a perspective view with parts cut away, FIG. 7 is a plan view showing cutting conditions for manufacturing two comb-shaped main bodies 23 ″ of the same shape which form the intermediate plate 2 from the original plate B ′, and FIG. 8 is a configuration of the intermediate plate. FIG.

In FIG. 7, an original plate B'is a plate width m of the face plate 1.
Is a rectangular plate having the same width as that of ½ of the plate length n of the face plate 1 and the width c of the wide width edge portion 28 (29) provided at the front (rear) edge, The cutting line 40 'is an odd number of straight lines 41' which are parallel to the side edges of the plate and have a predetermined dimension interval b on the central plate surface surrounded by the four wide peripheral edges of the original plate B '.
And a connecting line 42 'that alternately connects both ends of the parallel straight line 41', and a right-angled extension line 44 'that reaches the plate outer end in opposite directions from the ends of the straight outermost straight lines 41'. This is a zigzag-shaped single line, and by this cutting line 40 ', two comb-tooth-shaped main bodies 23 "of the same shape corresponding to the half of the intermediate plate 2 are obtained from the original plate B'.

The intermediate plate 2 is composed of the two comb-shaped main bodies 23 ".
As shown in FIG. 8, the two comb-shaped tip edges are opposed to each other, and a strip-shaped auxiliary side plate 4 ′ is interposed between the right-angled cutting edges 44 ″ facing each other on one side edge thereof. By arranging it, it is configured to have the same outer shape as the face plate 1. Fig. 6 shows a board tatami floor using an intermediate plate 2 in which upper and lower intermediate plates 21 and 22 having different plate thicknesses are stacked.

In the board tatami mat in each of the above-mentioned embodiments, the back surface protection sheet and the bottom plate are stacked on the material supply table of the normal tatami mat sewing machine, and the comb tooth-shaped main body and the necessary auxiliary plates are provided on the bottom plate surface. It is placed to form an intermediate plate, and a face plate,
It is manufactured by stacking surface protection sheets, moving them in the longitudinal direction, supplying them to a sewing machine, and integrating them for sewing. The needle penetration position in the above sewing machine usually corresponds to both wide edges of the intermediate plate and each narrow strip of the comb-shaped main body of the intermediate plate. If the number is 2 cm or less and the number is large, some narrow strips may be unsewn.

[0023]

As described above, the board tatami floor of the present invention includes a plurality of narrow strips extending in the longitudinal direction and an intermediate plate having a narrow space portion in a laminated structure of only soft fiberboard. In addition to reducing the weight and improving the heat insulating property, the bonding strength and pressure resistance of the narrow strips can be maintained to improve flexibility, cushioning and breathability. The main body can be easily manufactured by a well-known thin blade press type Thomson cutting machine without generating any waste material, and the manufacturing cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of a partially cut-away board tatami floor according to an embodiment of the present invention.

FIG. 2 is a plan view showing manufacturing conditions of a comb-shaped main body of an intermediate plate.

FIG. 3 is a plan view showing a combined configuration of intermediate plates.

FIG. 4 is a plan view showing another manufacturing condition of the comb tooth-shaped main body of the intermediate plate.

FIG. 5 is a plan view showing another combination configuration of the intermediate plate.

FIG. 6 is a perspective view of a partially cut-out board tatami floor according to another embodiment of the present invention.

FIG. 7 is a plan view showing manufacturing conditions of a comb-teeth shaped main body of a bottom plate in another embodiment.

FIG. 8 is a plan view showing a combined configuration according to another embodiment.

[Explanation of symbols]

 1 Face plate 2 Intermediate plate 3 Bottom plate 4 Auxiliary side plate 5 Auxiliary front plate 6 Sewing thread 23 Comb-tooth-shaped body 26 Narrow strips 27 Narrow space section 40 Cutting line 41 Straight line 42 Connection line 43 Straight extension line 44 Right angle extension line B Original plate a Wide width of side edge b Width of predetermined dimension c Wide width of front (rear) edge Edge width m Plate width n Plate length

Claims (3)

[Claims] 1. A board tatami floor made by laminating a rectangular soft fiberboard face plate (1), an intermediate plate (2) and a bottom plate (3) together, wherein the intermediate plate (2) has the same shape as the face plate (1). On the central plate surface surrounded by the four wide edges of the original plate (B), an odd number of straight lines (41) having a predetermined width interval (b) parallel to the side edges of the plate and the parallel straight lines ( 41) and connecting lines (42) alternately connecting both ends thereof, and straight extension lines (43) or right-angle extension lines (44) that reach the plate outer ends in opposite directions from the ends of the parallel outermost straight lines (41). ) Two comb-shaped main bodies (23) of the same shape obtained by dividing by a continuous zigzag cutting line (40), and narrow strips of the comb-shaped main body (23) ( 26) Auxiliary front plate (5) disposed in contact with the front end of 26) and a narrow strip (26) on the outside of the comb-shaped main body (23). A board tatami floor, which is configured by combining with an auxiliary side plate (4) arranged as described above. 2. A rectangular soft fiberboard comprising a rectangular soft fiberboard face plate (1), an intermediate plate (2) and a bottom plate (3) sewn together, wherein the intermediate plate (2) is the same as the face plate (1). With a width, half the length of the face plate (1) and a long wide edge (28)
The width (c) of the original plate (B ') is added to the central plate surface surrounded by the four wide edges of the original plate (B'), and a predetermined size interval (b) is set in parallel with the side edge of the plate. Odd number of straight lines (4
1 ') and a connecting line (42') alternately connecting both ends of the parallel straight line (41 '), and the outermost straight line (41') parallel to each other outside the plate in opposite directions. Two comb-shaped bodies (23 ″) of the same shape obtained by dividing by a continuous zigzag cutting line (40 ′) consisting of a right-angled extension line (44 ′) reaching the end, The tip edges are abutted against each other, and the right-angled cutting lines (4
A board tatami floor characterized by being constructed by interposing an auxiliary side plate (4 ') between 4'). 3. The intermediate plate (2) has the same surface shape and has the same or different plate thicknesses. The upper intermediate plate (21) and the lower intermediate plate (2) are different in thickness.
The board tatami floor according to claim 1 or 2, which is a laminate of (2) and.