JP2007204930A - Joist support plate, joist system, and double floor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To develop a joist system capable of having difficulty making a fall in a stable state, facilitating the height adjustment and having the excellence in workability and strength without having any deflection in a joint between both joist materials. <P>SOLUTION: The joist materials forming a groove in the longitudinal direction in the lower surface are consecutively provided. A projected stripe fitting to a groove of the joist material is formed in the upper surface of a joist support plate of a joist keeper supporting an intermediate section of the joist keeper supporting a connecting section of the joist materials. The assembly of the joist system is easy, and since the end sections of the adjoining joist materials are supported by one joist keeper, the height adjustment becomes easy. Since the end section of the joist material is supported by the joist keeper, the creak of an upper floor is prevented, and it is excellent in strength. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a joist system mainly constructed on a frame floor such as concrete of an apartment house, a joist support plate for supporting joists in the joist system, and a double floor in which a floor material is pasted on the joist system. .

  A double floor using a joist system is described in Patent Document 1 below, for example. The double floor is constructed, for example, by installing a joist system capable of height adjustment on a concrete floor such as concrete at a predetermined interval and attaching an upper floor material thereon. Of the joists, those installed on the wall are called konjo. There is also a method in which a joist is installed near the wall, a base material made of foamed plastic such as expanded polystyrene is applied to the center portion of the floor in place of the joist, and an upper floor material is stuck on the joist and the base material.

FIG. 16 is a plan view and a side view showing an example of a joist system that is conventionally used. In this case, the same joist unit 40 as the joist unit used for the center portion of the floor is arranged side by side on the wall. The joist unit 40 has through-holes 42 formed in the joist member 41 at predetermined intervals, a bolt receiver 43 having a female screw on the lower surface is attached with screws, the support bolts 16 are screwed thereto, and the joist member 41 is attached with a plurality of support bolts. It is to support (FIG. 17). The height can be adjusted by rotating the support bolt.
Japanese Patent Laid-Open No. 10-245964

The conventional joist construction as described above has the following problems.
(Ii) When a joist unit is manufactured, through holes are formed in the joist material at predetermined intervals, and bolt receivers are attached with screws or the like, so the manufacturing work is complicated and takes time.
(B) The joist unit tends to fall down during construction, it is very unstable and work efficiency is poor.
(Ha) There is no continuity between joist systems, and the height of the support bolts of the joist unit on both sides must be adjusted at the joint, so there are many support bolts to be adjusted, and time is required for height adjustment. Take it.
(Ii) Since the joist unit is not continuous, the joist material is easily bent when a load is applied to the joint of the joist material, and the upper floor of the portion is easily squeezed.

  INDUSTRIAL APPLICABILITY The present invention is stable, hard to fall, easy to adjust in height, does not cause bending at the joints of the joists, and has excellent workability and strength, and a double floor using the joists system. The issue is to develop.

[Claim 1]
According to the present invention, a female threaded hole for screwing a support bolt is provided in the upper and lower direction on a plate-like main body formed on the upper surface with a protrusion that fits into a groove formed on the lower surface of the joist member. A joist support plate, wherein the protrusions are formed on both sides of the female screw hole in a direction toward the female screw hole.

[Claim 2]
The present invention also includes a female threaded hole for screwing a support bolt vertically in a plate-like main body having a protrusion formed on the upper surface protruding to fit into a groove formed on the lower surface of the joist. A joist support plate provided, wherein the female screw hole is separated from the protrusion by a predetermined distance in a perpendicular direction. Here, the predetermined distance is a distance at which the female screw hole is exposed to the side portion of the joist member when the protrusion is fitted into the joist member groove.

[Claim 3]
Further, the present invention provides a plate-like main body formed on the upper surface by protruding protrusions that fit into grooves formed on the lower surface of the joists on the upper surface.
A joist support plate in which a female screw hole for screwing a support bolt is provided so as to penetrate in the vertical direction, wherein the protrusion is formed on both sides of the female screw hole, and the protrusion on one side is the female screw hole It is a joist receiving plate characterized in that it is formed in a direction toward the ridge and the ridge on the other side is formed in a direction perpendicular to the ridge on the opposite side.

[Claim 4]
Further, the present invention is a joist system for supporting a plurality of joist members at a connecting portion thereof by a joist support device in which a support bolt is screwed into the female screw hole of the joist support plate of claim 1, In the joist system, a groove in the length direction is formed on the lower surface, and the groove of the joist material adjacent in the connecting portion is fitted to the protrusion of the joist support plate.

[Claim 5]
Further, the present invention is a joist system for supporting a plurality of joist members with a joist support member in which a support bolt is screwed into the female screw hole of the joist plate of claim 1 or 3 at the connecting portion thereof. A groove in the length direction is formed on the lower surface, and a portion of the connecting portion where the adjacent joist members are connected in a straight line is supported by the joist holder having the joist plate of claim 1, The part connected at right angles is supported by a joist support having the joist support plate of claim 3, and the groove is fitted to the protrusion at each connection part of the joist material. It is.

[Claim 6]
According to the present invention, in the joist system according to claim 4 or 5, an intermediate portion of at least one joist member of the joists is supported by a joist support member in which a support bolt is screwed to the joist support plate of claim 2. In the joist system, the groove of the joist material is fitted into the protrusion of the joist receiving plate according to claim 2.

[Claim 7]
Moreover, this invention is a double floor characterized by sticking the flooring on the joist system in any one of Claim 4, 5 or 6.

  The joist support plate according to claim 1 is able to manufacture the joist system very easily by connecting the joists to the ridges on both sides of the female screw hole, thereby connecting the joists in a straight line. .

  The joist support plate of claim 2 can be attached by fitting a groove of the joist into the ridge at the middle part of the joist, and the joist can be easily reinforced. This joist plate can be easily attached to an arbitrary position of the joist material.

  The joist support plate according to the third aspect of the present invention can connect the joists to a right angle by fitting the joists into the protrusions on both sides of the female screw hole, thereby making it possible to manufacture the joist system very easily.

  The joist system of claim 4 can be easily manufactured by linearly connecting the joist members by fitting the groove of the joist member to the protrusions of the joist plate of claim 1. Since the ends of adjacent joists are supported by a single joist support, the heights of both joists can be adjusted by adjusting the height of each joist support. Work becomes easy. Further, since the end portion of the joist is supported by the joist support, the end portion of the joist does not bend, the creaking of the upper floor is prevented, and the strength is improved.

  The joist system according to claim 5 can be easily manufactured by connecting the joists into a straight line or at a right angle by fitting the groove of the joist board into the protrusion of the joist support plate according to claim 1 or 3. . Since the ends of adjacent joists are supported by a single joist support, the heights of both joists can be adjusted by adjusting the height of each joist support. Work becomes easy. Further, since the end portion of the joist is supported by the joist support, the end portion of the joist does not bend, the creaking of the upper floor is prevented, and the strength is improved.

  In the joist system of claim 6, since the rib of the joist support plate of claim 2 is fitted and attached to the groove of the joist at the middle part of the joist, and the joist is reinforced, a long joist is used. Even so, the strength of the joist system can be secured. The joist plate of claim 2 can be easily attached to an arbitrary position of the joist material. In this joist system, the support bolt at the end of the joist and the support bolt at the middle of the joist are not in a straight line, so the joist system is stable and difficult to fall down during construction, making it easy to construct a double floor Can do.

  The double floor of claim 7 can be easily constructed using the joist system of the present invention, and since the end of the joist is supported by the joist support, the joist end does not bend, The creaking of the upper floor is prevented and the strength is improved.

  1-3 is a perspective view of a joist receiving plate of the embodiment, and FIG. 4 is a perspective view of a joist material. The joist support plate 1 in FIG. 1 is integrally formed of plastic, and a female screw hole 3 penetrating front and back is formed in the central part of the plate-like main body 2, and a protrusion 4 is formed on both sides of the female screw hole 3 on the upper surface. Is formed. A support bolt 16 is screwed into the female screw hole 3 as shown in FIG. The protrusions 4 on both sides are provided in a straight line facing the direction toward the center of the female screw hole. The protrusion 4 is fitted to the groove 15 on the lower surface of the joist member 14 shown in FIG. 4, and when the ends of the joist member 14 are placed on both sides of the joist receiving plate 1 as shown in FIGS. In addition, the groove 15 of the joist member 14 is fitted into the protrusion 4.

  The joist receiving plate 5 shown in FIG. 2 is integrally formed of plastic. A female screw hole 7 is formed in the plate-like main body 6 so as to penetrate the front and back, and a protrusion 8 is formed on the upper surface. A support bolt 16 is screwed into the female screw hole 7 as shown in FIG. As shown in FIGS. 5 and 6, an intermediate portion of the joist material 14 is placed on the joist receiving plate 5. At this time, the female screw hole 7 is located at a position away from the protrusion 8 by a predetermined distance in a direction perpendicular to the groove 15 of the joist member 14 so that the female screw hole 7 is exposed to the side of the joist member 14. Is provided.

  The joist support plate 9 in FIG. 3 is integrally formed of plastic, and a female screw hole 11 penetrating the front and back is formed in the central portion of the plate-shaped main body 10, and a protrusion 12 is provided on both sides of the female screw hole 11 on the upper surface. , 13 joist receiving plates are formed. A support bolt 16 is screwed into the female screw hole 11. One protrusion 12 is directed in the direction toward the center of the female screw hole 11, and the other protrusion 13 is formed in a direction perpendicular to the protrusion 12, and is formed at a predetermined distance from the female screw hole 11. The ridges 12 and 13 are fitted into the groove 15 on the bottom surface of the joist member 14 shown in FIG. 4, and, as shown in FIG. 7, two joisters facing to each other at right angles on both sides of the joist support plate 9. When the end portion of the material 14 is placed, the groove 15 of the joist material 14 is fitted into the protrusions 12 and 13.

  FIG. 5 is a plan view of the joist system of the embodiment, FIG. 6 is a view taken along arrow A in FIG. 5, FIG. 7 is a sectional view taken along line BB in FIG. . FIG. 5 shows an example in which the joist system of the present invention is constructed on the wall W and used as the joist, and the joist material 14 is connected in a straight line. A connecting portion (end portion) of the joist member 14 in FIG. 4 is supported by a joist support member in which a support bolt 16 is screwed to the joist support plate 1 in FIG. Further, an intermediate portion of the joist member 14 is supported by a joist support member in which a support bolt 16 is screwed to the joist support plate 5 of FIG. Since the joist member 14 is provided with the groove 15 over the entire length, an arbitrary position of the intermediate portion of the joist member 14 can be supported by a joist support member in which a support bolt 16 is screwed to the joist support plate 5. . Although FIGS. 5-8 showed the case where the joist system of a present Example was used as a thick joist, the joist system of a present Example can be used as a joist system of the center part of a floor other than a joist. Of course.

  FIG. 9 is a plan view of an example in which the joist system according to the embodiment is used as an extra joist, and shows a case where the joist members 14 are connected at right angles at corner portions. In the portion where the joist member 14 is connected at a right angle, the end of the joist member 14 is supported by a joist holder in which a support bolt 16 is screwed to the joist receiving plate 9 of FIG.

  FIG. 10 is a schematic plan view showing an example in which the joist system according to the present invention is applied to a room as a joist. For simplification, the joist support plates 1, 5, and 9 are represented by small circles. The joist members 14 are all connected by joist support plates 1 and 9, and the intermediate portion is appropriately supported by the joist support plate 5. All joists are not easily bent because both ends are supported by joist supports. Further, since the joist can be cut into a desired size and used, the waste of the joist can be minimized.

  In the joist system of the above embodiment, since the top surface of the support bolt 16 is exposed between the joists or on the sides of the joists, the height is adjusted by rotating the support bolt from above with a screwdriver or the like. be able to.

  11 to 13 are perspective views of a joist support plate according to another embodiment, and FIG. 14 is a perspective view of another joist material. The joist support plate 21 in FIG. 11 is integrally formed of plastic, and has two ridges of the joist support plate 1 in FIG. 1. The method of use is the same as the joist support plate 1. A female screw hole 23 penetrating the front and back is formed at the center of the plate-like main body 22, and two parallel protrusions 24 are formed on both sides of the female screw hole 23 on the upper surface. The two ridges 24 on both sides are each provided on a straight line facing the direction toward the female screw hole. When a plurality of protrusions are provided, it is preferable that the center lines of the plurality of protrusions pass through the center of the female screw hole. The ridges 24 are fitted into the two grooves 15 on the lower surface of the joist member 14 shown in FIG. Thus, the groove | channel of a joist material and the protrusion of a joist board can be made into multiple pieces.

  The joist support plate 25 in FIG. 12 is integrally formed of plastic and has two joists on the joist support plate 5 in FIG. 2, and the usage is the same as the joist support plate 5. A female screw hole 27 penetrating front and back is formed in the plate-like main body 26, and two protrusions 28 are formed on the upper surface. The female screw hole 27 is formed at a position away from the protrusion 28 by a predetermined distance in a right angle direction.

  The joist support plate 29 in FIG. 13 is integrally formed of plastic, and has two ridges on the joist support plate 9 in FIG. 3, and the usage is the same as the joist support plate 9. A female screw hole 31 penetrating the front and back is formed in the central portion of the plate-shaped main body 30, and protrusions 32 and 33 are formed on both sides of the female screw hole 31 on the upper surface. One protrusion 32 is directed in the direction toward the female screw hole 31, and the other protrusion 33 is provided in a direction perpendicular to the protrusion 32, and is provided at a predetermined distance from the female screw hole 31.

  FIG. 15 is a sectional view of the double floor of the present invention, in which a floor material (upper floor) is pasted on the joist system of the present invention shown in FIG. The floor material is usually composed of a base board 36 and a finishing material 37. The base board is a plywood or a particle board, and the finishing material is a flooring, a carpet, a tatami mat or the like. In the double floor of the present embodiment, the upper floor supporting member (the center portion of the floor) other than the joist is, for example, a joist system in which the joist materials shown in FIG. Can be arranged. Moreover, it can also be set as the structure similar to the conventional double floor. For example, the joist unit shown in FIGS. 16 and 17 listed as the conventional example is arranged in the central portion of the frame floor F at a predetermined interval, or the foamed plastic base material described in Patent Document 1 is used. You can also.

It is a perspective view of the joist receiving plate 1 of an Example. It is a perspective view of the joist receiving plate 5 of an Example. It is a perspective view of the joist support plate 9 of an Example. 2 is a perspective view of a joist member 14. FIG. It is a top view of a joist system of an example. It is A arrow directional view in FIG. It is the BB sectional view taken on the line in FIG. It is CC sectional view taken on the line in FIG. It is a top view of a joist system of an example. It is a top view of a joist system of an example. It is a perspective view of the joist receiving plate 21 of an Example. It is a perspective view of the joist support plate 25 of an Example. It is a perspective view of the joist receiving plate 29 of an Example. 3 is a perspective view of a joist member 34. FIG. It is sectional drawing of the double floor of an Example. It is the top view and side view of the conventional joist system. It is sectional drawing of the conventional joist system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 joist receiving plate 2 plate-shaped main body 3 female screw hole 4 protrusion 5 joist receiving plate 6 plate-shaped main body 7 female screw hole 8 protrusion 9 joist receiving plate 10 plate-shaped main body 11 female screw hole 12 protrusion 13 protrusion 14 root thick material 15 groove 16 support bolt 21 joist plate 22 plate-shaped main body 23 female screw hole 24 ridge 25 joist plate 26 plate-shaped main body 27 female screw hole 28 ridge 29 joist plate 30 plate-shaped main body 31 female screw hole 32 ridge 33 ridge 34 joist Material 35 Groove 36 Base board 37 Finishing material 40 joist unit 41 joist material 42 through hole 43 bolt holder W wall F frame floor

Claims (7)

A joist receiving plate provided with a female screw hole for screwing a support bolt vertically in a plate-like main body formed with a protrusion projecting from the upper surface formed on the upper surface. The joist plate is characterized in that the protrusions are formed on both sides of the female screw hole in a direction toward the female screw hole. A joist receiving plate provided with a female screw hole for screwing a support bolt vertically in a plate-like main body formed with a protrusion projecting from the upper surface formed on the upper surface. The joist plate is characterized in that the female screw hole is separated from the protrusion by a predetermined distance in a right angle direction. A joist receiving plate provided with a female screw hole for screwing a support bolt vertically in a plate-like main body formed with a protrusion projecting from the upper surface formed on the upper surface. The protrusion is formed on both sides of the female screw hole, the protrusion on one side thereof is formed in a direction toward the female screw hole, and the protrusion on the other side is perpendicular to the protrusion on the opposite side. A joist support plate characterized by being formed into A joist system for supporting a plurality of joist members at a connecting portion thereof with a joist support device in which a support bolt is screwed into the female screw hole of the joist plate of claim 1, wherein the joist members are arranged in a length direction on a lower surface. A groove system is characterized in that the groove of the joist material adjacent in the connecting portion is fitted to the protrusion of the joist support plate. A joist system for supporting a plurality of joist members with a joist support in which a support bolt is screwed into the female screw hole of the joist plate of claim 1 or 3 at a connecting portion thereof, and the joist member has a length on a lower surface. In the connecting portion, a portion where the adjacent joist members are connected in a straight line is supported by the joist support having the joist plate of claim 1, and the adjacent joists are connected at right angles. The portion is supported by a joist support having the joist support plate according to claim 3, and the groove is fitted to the protrusion at each connection portion of the joist material. The joist system according to claim 4 or 5, wherein an intermediate portion of at least one of the joist members is supported by a joist support member in which a support bolt is screwed to the joist support plate of claim 2, The joist system is characterized in that the groove is fitted to the protrusion of the joist support plate of claim 2. A double floor, wherein a flooring material is pasted on the joist system according to any one of claims 4, 5 and 6.

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