JP3121509B2 - Structure of the lower rail of the folding door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a lower rail of a folding door in which ends of two panels are foldably connected via a hinge.

[0002]

2. Description of the Related Art Conventionally, in a folding door in which the ends of two panels are foldably connected to each other via a hinge, a traveling tool provided at the upper and lower ends of the opposite end to the hinge is moved upward. It is openable and closable by being attached to the rail or the lower rail so that it can be opened and closed. The attachment of the traveling tool to the lower rail runs in the lower rail 2 having a substantially U-shaped cross section as shown in FIG. The running tool 6 is arranged so as to be able to run freely, and the running tool 6 can run along the running groove 20 in the lower rail 2. As the lower rail 2, the vertical pieces 30 rise from both ends of the mounting plate 18 mounted on the mounting surface 17 such as a floor surface, and the horizontal pieces 31 protrude from the upper end of each vertical piece 30 in a direction facing each other. It is formed in a box shape.

[0003]

However, in the conventional example described above, the lower rail 2 formed in a box shape has a state in which corners a are formed at both upper ends in a sectional view. For this reason, when stepping on the lower rail 2 during walking, the sole may be injured by the corner a, and the vertical piece 30 may stand upright so as to be orthogonal to the mounting surface 17. There is a problem that it is easy to trip on walking and is dangerous. In general, the lower rail 2 has a long length extending between wall surfaces in a room, and there is a problem that it is difficult to handle the lower rail 2 during construction and it is difficult to install the lower rail 2. Was.

SUMMARY OF THE INVENTION An object of the present invention is to provide a structure of a lower rail of a folding door which has a shape which is difficult to trip over when walking and which facilitates installation work.

[0005]

In order to achieve the above object, according to the first aspect of the present invention, two ends of two panels 3 adjacent to each other on the left and right sides between an upper rail 1 and a lower rail 2 are hinged. A folding door A is provided, which is foldably connected via a portion 4, and the traveling tools 5, 6 provided at the upper and lower ends of each panel 3 at the end opposite to the hinge portion 4 are connected to the upper rail 1 or the lower rail. 2
The lower rail 2 is formed on the upper surface along the longitudinal direction which is bisected in the longitudinal direction by the opening 7 through which the support shaft 6a of the traveling tool 6 is inserted and arranged. A connecting groove 9 is formed in the end face of the lower rail 2 so as to open in a direction orthogonal to the end face, and the connecting member 10 is connected between the adjacent lower rails 2 arranged so that the end faces face each other. It is characterized in that both ends of the connecting member 10 are inserted and locked in the connecting grooves 9 of the adjacent lower rails 2 respectively.

According to a second aspect of the present invention, in the first aspect, the connecting member 10 is provided with an opening 12 through which a tip of a tool such as a screwdriver can be inserted and locked. According to a third aspect of the present invention, in the second aspect, a projection 13 protruding outward is provided at an opening edge of the opening 12.

[0007]

According to the first aspect of the present invention, the lower rail 2 is used when walking.
Even if the user steps on, the curved surface portion 8 does not injure the sole, and the arcuate curved surface portion 8 makes it difficult to trip over. In addition, since the long lower rail 2 can be formed by being connected to each other by the connecting member 10, the lower rail 2 can be divided into a plurality of parts and used, so that transportation and construction can be easily performed.

According to the second aspect of the present invention, by inserting a tool such as a screwdriver into the opening 12, the connecting member 10 can be moved using the tool, and the positioning of the connecting member 10 can be performed using a tool such as a screwdriver. And can be easily performed. According to the invention of claim 3, when positioning the connecting member 10 by inserting the tip of the tool into the opening 12, it is possible to improve the hook of the tip of the tool to the opening 12 by the protrusion 13. In addition, it is possible to reliably move the connecting member 10 using a tool without taking time.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to embodiments shown in the accompanying drawings. As shown in FIG. 1, the folding door A is formed by connecting the ends of two panels 3 so as to be foldable via hinges 4.
The upper traveling tool 5 is provided upward at the upper end of the end opposite to the hinge 4 and the lower traveling tool 4 is provided at the lower end. The upper traveling tool 5 is attached to the upper rail 1 so as to be able to travel, and the lower traveling tool 4 is attached to the lower rail 2 so as to be able to travel.

The folding door A having the above configuration is in a fully-closed state in which the two panels 3 are extended so as to be linear with respect to the rails 1 and 2, and the folding door A is folded up to the maximum. A state where two or three panels 3 are protruded is a fully opened state. As shown in FIG. 6, the hinge part 4 has hinge plates 4a on the upper and lower surfaces of the end of the panel 3, respectively.
The hinge plate 4b is fixed, and the hinge plate 4a and the hinge plate 4b are pivotally supported by a shaft 14 via a center hinge plate 4c. The blind member 15 is disposed between the ends of the panel 3 so that the shaft 14 is fitted into the fitting hole 16 of the blind member 15, whereby the blind member 15 is closed. The member 16 is supported by the upper and lower hinges 4.

As shown in FIG. 2, the lower rail 2 has a cantilevered outer surface piece 19 protruding from both ends of a mounting plate 18 fixed to a mounting surface 17 such as a floor surface. 19
Is an arcuate curved surface portion 8. The front end of the facing outer surface piece 19 is open upward, and a support shaft 6a for supporting the traveling tool 6 is inserted and arranged in the opening 7 opening upward, so that the space between the outer surface piece 19 and the mounting plate 18 is provided. The roller 6b of the traveling tool 6 is arranged in the traveling groove 20 provided in the vehicle. A connecting groove 9 is formed outside the running groove 20 in the lower rail 2, and the connecting groove 9 is formed over the entire length of the lower rail 2 in the longitudinal direction. Here, the connection groove 9 may be provided partially only at both ends of the lower rail 2. The connecting groove 9 has an upper recess 22 between a pair of protrusions 21 and 21 protruding from the inner surface of the outer surface piece 19 and a lower recess 24 between a pair of protrusions 23 and 23 protruding from the inner surface of the mounting plate 18. It is composed of The lower rails 2 are arranged so that their end faces face each other, and both ends of a connecting member 10 as shown in FIG. It has become so. The connecting member 10 is formed to have a substantially L-shaped cross section. An upper convex portion 25 is provided at the upper end along the longitudinal direction to be engaged with the upper concave portion 22. The lower concave portion 24 at the lower end along the longitudinal direction is provided. Is provided with a lower protruding portion 26 which is engaged with. Here, since the lower concave portion 24 has an L-shaped cross section, the lower convex portion 26 also has an L-shaped cross section.
Although the shape is shown in the figure, the shape is not limited to this, and other shapes such as a C-shaped cross section other than the L-shaped cross section may be used in accordance with the shapes of the upper concave portion 22 and the lower concave portion 24. It may be.

The connecting member 10 is provided with an opening 12, and a tip of a tool such as a screwdriver is inserted into the opening 12 to move the connecting member 10 inserted and connected to the connecting groove 9 by the tool. Is available. That is, when the connecting member 10 is inserted and connected to the connecting groove 9, the tip of a tool such as a screwdriver is hooked on the opening 12 and the connecting member 10 is moved to connect the adjacent lower rails 2 to the connecting groove 9. The connection state of each lower rail 2 can be adjusted via the connecting member 10 by adjusting the insertion depth at both ends of the member 10.

As shown in FIG. 5, a projection 13 formed by burring or the like may be provided at the opening edge of the opening 12, and the thickness of the connecting member 10 is increased by providing the projection 13 in this manner. Even when the dimensions are small and the thickness of the opening 12 is thin, the tip of a tool such as a screwdriver can be easily hooked on the opening 12 due to the presence of the protruding piece 13, and the movement of the connecting member 10 using the tool can be improved. It can be easily performed without any hassle.

The lower rails 2 are arranged so that the end faces of the lower rails 2 face each other and are adjacent to each other.
Both ends of the connecting member 10 disposed between the adjacent lower rails 2 are inserted into the connecting grooves 9 of the adjacent lower rails 2, respectively.
A plurality of lower rails 2 are connected by bringing the end faces of the respective lower rails 2 into contact with each other without any gap, thereby forming a long lower rail 2.

[0015]

According to the first aspect of the present invention, a folding door is provided between an upper rail and a lower rail by connecting the ends of two panels adjacent to each other on the right and left via a hinge so as to be freely foldable. The traveling tool provided at the upper and lower ends of the opposite side of the hinge part of each panel is attached to the upper rail or the lower rail so as to be able to travel freely, and the longitudinal direction is defined by the opening through which the support shaft of the traveling tool is inserted. An arcuate curved surface portion is formed on the upper surface along the longitudinal direction of the lower rail that is bisected along the lower rail, and a connection groove that opens in a direction orthogonal to the end surface portion is formed in the end surface portion of the lower rail, and the end surface portion is formed. The connecting member is arranged between adjacent lower rails arranged so as to face each other, and both ends of the connecting member are inserted and locked in the connecting grooves of each adjacent lower rail, so that the lower rail can be Even if you step on it, you will injure your sole by the curved part The lower rail can be formed by a plurality of lower rails that can be connected to each other by a connecting member to form a long lower rail. It can be divided and used, and can be easily transported and constructed.

According to a second aspect of the present invention, in addition to the first aspect, the connecting member is provided with an opening through which the tip of a tool such as a screwdriver can be inserted and locked. By inserting the tool into the opening, the connecting member can be moved using the tool, and the positioning of the connecting member can be easily performed using a tool such as a screwdriver.

According to a third aspect of the present invention, since a projecting piece projecting outward is provided at the opening edge of the opening in the second aspect, in addition to the effect of the second aspect, the tip of the tool is inserted into the opening. When the connecting member is positioned by using the projection, the tip of the tool can be better caught in the opening by the protruding piece, and the moving of the connecting member using the tool can be reliably performed without trouble. You can do it.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing one embodiment of the present invention.

FIG. 2 is an end view of a lower rail according to the first embodiment;

FIG. 3 is a perspective view showing a connection state of a connection member to a lower rail of the above.

FIG. 4 is a perspective view of the connection member according to the first embodiment;

FIG. 5 is a sectional view showing another embodiment of the connection member.

FIG. 6 is an exploded perspective view showing a hinge portion.

FIG. 7 is a sectional view showing a conventional example.

[Explanation of symbols]

 A Folding door 1 Upper rail 2 Lower rail 3 Panel 4 Hinge part 5 Running tool 6 Running tool 6a Support shaft 7 Opening 8 Curved surface section 9 Connecting groove 10 Connecting member 12 Opening 13 Projection

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E05D 15/26 E05D 15/06-15/06 125 E06B 3/48

Claims (3)

(57) [Claims] 1. A folding door is provided between an upper rail and a lower rail, the end of two panels adjacent to each other on the left and right being foldably connected via a hinge. A traveling tool provided at the upper and lower ends of the opposite end is attached to the upper rail or the lower rail so as to run freely, and the lower rail is bisected in the longitudinal direction by an opening through which the support shaft of the traveling tool is inserted and arranged. An arcuate curved surface portion is formed on the upper surface along the longitudinal direction of the lower rail, and a connection groove that opens in a direction orthogonal to the end surface portion is formed in the end surface portion of the lower rail, and the end surfaces are arranged so as to face each other. A connecting member is disposed between adjacent lower rails, and both ends of the connecting member are inserted and locked in connecting grooves of the adjacent lower rails, respectively. 2. The structure of a lower rail of a folding door according to claim 1, wherein the connecting member has an opening through which a tip of a tool such as a driver can be inserted and locked. 3. The structure of a lower rail of a folding door according to claim 2, wherein a protrusion protruding outward is provided at an opening edge of the opening.