JPS592274Y2 - Folding door lock structure - Google Patents

Description

[Detailed description of the invention] The present invention is a locking structure for a folding door, and more specifically, a locking structure for a folding door in which a hinge column that is arranged between a pair of panels and connects both panels so that they can be folded is locked to the lower rail. The main objective is to provide a locking structure for a folding door that is easy to operate and prevents the hinge post from rattling upward.

The present invention will be explained in detail below based on embodiments shown in the figures.

In the lock structure of the folding door according to the present invention, a hinge post 2 is arranged vertically between a pair of adjacent panels 1, 1, and a hook 3 protruding from the side edge of each panel 1 is attached to each hinge post 2. In a folding door in which both panels 1.1 are rotatably fitted to hinge shafts 4, 4 formed on the left and right sides, and both panels 1.1 are foldably connected via a hinge post 2, and are arranged between upper and lower rails 5, 6. , the hinge post 2 has a U-shaped horizontal cross-sectional shape, with tongue pieces extending inward from the tips of the two pieces 7 at a substantially right angle, and a substantially circular tongue piece extending at the tip of each tongue piece 8 with a gap between them. C-shaped portions 9 having a C-shaped horizontal section formed at the tips of the hooks 3 protruding from the side ends of each panel 1 are respectively rotatable around the hinge shafts 4. A notch 10 is formed at the lower end of the hinge post 2 by removing a portion extending from both hinge shafts 4 to the tongue piece 8 at a predetermined height, and this notch 10 is formed at the lower end of both hooks 3. A cutout window 11 is formed by removing the C-shaped portion 9 so as to match the block 1 which is fitted into the lower end of the hinge post 2.
One side of the block 2 is exposed to the above-mentioned notch 10 and the notched window 11, and the block 12 is provided with a vertical hole 13 that passes through it vertically, and the one side exposed to the notch 10 and the notched window 11 is communicated with this vertical hole 13. A long elongated hole 14 is formed below the vertical hole 13, and an operating lever 16 protrudes from the side surface of a vertical rod 15 that is fitted into the vertical hole 13 so as to be able to move vertically. A ball 18 is provided therein, which is movable by a spring 17 between a position protruding from the inner wall surface of the vertical hole 13 and a position retracted from the inner wall surface. A recess 20 is provided at one location on the bottom surface of the lower rail 6, with the vertical bar 15 projecting its lower end downward while being in elastic contact with the outer surface of the vertical bar 15.
The ball 1B moves up and down between the position where it is inserted into the hinge column 2 and the position where the lower end is retracted into the hinge post 2, and when the vertical bar 15 takes the latter position, the ball 1B opens at one place on the outer circumferential surface of the vertical bar 15. The vertical bar 15 is locked in this position by being inserted into the locking hole 21, and the lower end surface of the 0-shaped portion 9 of the hook 3 that fits into each hinge shaft 4 is locked to the upper end of the block 12. That is.

The pair of panels 1, 1, which are connected laterally via the hinge post 2, are arranged between the upper and lower pair of rails 5, 6, as shown in FIG. Each panel 1 has a hinge post 2.
A runner 24 protruding from the upper surface of the side end opposite to the hinge column 2 is freely suspended from the upper rail 5, and a pivot 25 protruding from the lower surface of the side end opposite to the hinge column 2 is fitted into the lower rail 6 so as to be freely movable. is installed between the upper and lower side rails 5 and 6,
By fixing the pivot 25 of one panel 1 at a fixed position on the lower rail 6, both panels 1, 1 can be opened and closed with the side end of this panel 1 as a fixed end.

The hinge post 2 is attached over the entire vertical length between the panels 1, 1, and a cap 26 is attached to the upper end of the hinge post 2 to prevent the hinge post 2 from coming off downward.

On the other hand, the hook 3 connecting the panel 1 and the hinge post 2 is
As shown in FIG. 2, a C-shaped portion 9 is formed in a cross-sectional shape integrally extending from one end of a mounting piece 30 fixed to one side of the side end surface of the panel 1.

The block 12 fitted into the lower end of the hinge post 2 is the sixth
As shown in Fig. 7 and Fig. 7, Duracon is formed into a shape having grooves 31 on both sides and a vertical hole 13 that communicates vertically on the rear side, and the periphery of the notch 10 is inserted into the grooves 31 on both sides. It is inserted into the lower end of the hinge post 2 and closes the notch 10 at the lower end of the hinge post 2 with its front face, and the lower end opening of the hinge post 2 with its bottom face, and is formed on both side walls of the vertical hole 13. It is fixed to the hinge post 2 by screwing screws 34 into the holes 32 through the mounting holes 33 of both side pieces 7 of the hinge post 2, respectively.

A vertical bar 21 as shown in FIGS. 6 and 8 is housed in the vertical hole 13 of the block 12 so as to be vertically movable so that its lower end freely protrudes below the block 12, and from the outer periphery of the upper end. The operating lever 16 protruding in the radial direction is connected to the block 1.
2 protrudes forward from the elongated hole 14 on the front surface.

On the other hand, a horizontal hole 40 communicating with the vertical hole 13 is bored (L-shaped) at the lower end of both side walls of the vertical hole 13, and a spring 17 and a ball 18 are inserted into each horizontal hole 40 so that one end of the spring 17 is hinged. The ball 18 is brought into contact with the side piece 7 of the column 2 and inserted into the vertical hole 13.
The vertical bar 1 in the vertical hole 13 is housed so as to be ejected to the side.
5 is moved up and down with balls 18 in elastic contact with each peripheral surface, and as shown in FIG.
When the vertical bar 15 is in the retracted position, the ball 1B fits into the locking hole 21 opened on the outer periphery of the flat end of the vertical bar 15, and the vertical bar 15 is moved to this position, that is, the lower end of the vertical bar 15 is inserted into the block 12. When locking the folding door in the closed position, use the operating lever 16 exposed in front of the hinge post 2 through the cutout window 11 formed by cutting out the lower end of each hook 3. Push down the vertical bar 15 by hand, remove the ball 18 from the locking hole 21, and remove the block 1.
2, the lower end of the vertical bar 15 protruding downward from the lower end is fitted into a recess 20 provided at one place on the bottom of the lower rail 6, as shown by the imaginary line in FIG. It is fixed at the top to prevent both panels 1, 1 from opening.

Here, the front surface of the block 12 protrudes forward beyond the notch 10 at the lower end of the hinge post 2, and the C-shaped portion 9 appearing at the upper end of the notch window 11 of each hook 3 is engaged with the front upper end surface of the block 12. Therefore, even if the entire hinge post 2 attempts to move upward, the block 12 fixed to the hinge post 2 is locked to the C-shaped portion 9 of the hook 3, and the hinge post 2 does not shift upward.

In the above embodiment, the control lever 16 of the vertical bar 15 was made to protrude only toward the side of the hook 3, but FIG.
As shown in t), a pair of operating levers 1 are connected to the vertical bar 15.
The vertical bar 15 is made to protrude from the front side of the folding door, one of which protrudes toward the front side of the block 12, and the other protrudes rearward from the long hole 42 provided at the rear of the lower end of the hinge post 2. You may also be able to perform operations such as
In addition, as shown in FIGS. 10a and 10b, a closed display section 45 and an open display section 46 are provided at the upper and lower ends of the vertical bar 15 to indicate the closed position and open position using letters and colors, respectively. 45° 46 may be displayed in a display window 47 provided on the rear surface of the hinge post 2 depending on the vertical position of the vertical bar 15.

Since the present invention has the above-mentioned configuration, the folding door can be locked using the opening at the lower end of the hinge column by the vertical bar that protrudes downwardly and retractably from the block inserted into the hinge column. The opening at the lower end of the pillar can be effectively used to provide a locking function to the folding door, and the upper end of the block that is fitted and fixed to the lower end of the hinge pillar corresponds to the upper end of the notched window created by notching the lower end of the hook. By being locked to the C-shaped lower end surface, upward displacement of the entire hinge column can be restricted.

[Brief explanation of drawings]

Fig. 1 is a partially omitted perspective view showing one embodiment of the present invention;
The figure is a partial cross-sectional view showing the connection between the hinge post and the panel shown above, FIG. 3 is a partially cutaway front view showing the locking mechanism part shown above, and FIG. 5 is a sectional view taken along the line X-X in FIG. 3, FIG. 6 is an exploded perspective view showing a portion corresponding to FIG. 3, and FIG. 7a,
b. c and d are respectively a perspective view, a front view, a side view, and a top view of the block used in the above, Figures 8a and l), c are a perspective view, a front view, and a top view of the vertical bar used in the same, respectively, and Figure 9 Figures a and t) are respectively a perspective view showing a vertical bar according to another embodiment of the present invention and a partial perspective view showing the lower end of the hinge column incorporating this vertical bar, and Figures 10a and b are respectively a perspective view showing a vertical bar according to another embodiment of the present invention. 1 is a perspective view showing a vertical bar in another embodiment and a partial perspective view showing the lower end of a hinge post incorporating this vertical bar, 1 is a panel, 2 is a hinge post, 3 is a hook, 4 is a hinge shaft, and 5 is a partial perspective view showing a lower end of a hinge post incorporating this vertical bar. Upper rail, 6 is lower rail, 1 is side piece, 8 is tongue piece, 9 is C-shaped part, 10 is notch, 11 is notch window, 12 is block, 13
is a vertical hole, 14 is a long hole, 15 is a vertical bar, 16 is an operating lever,
17 is a spring, 18 is a ball, 20 is a recess, and 21 is a locking hole.

Claims (1)

[Scope of utility model registration request] A hinge post is arranged vertically between a pair of adjacent panels, and hooks protruding from the side edges of each panel are rotatably fitted into the hinge shafts formed on the left and right sides of the hinge post, respectively, and both panels are hinged. In a folding door that is foldably connected via a pillar and arranged between upper and lower rails, the hinge pillar has a U-shaped horizontal cross section, and tongue pieces extend inward from the tips of both sides at a substantially right angle. At the same time, a substantially circular hinge shaft is formed at the tip of each tongue piece with a gap between them, and the horizontal section formed at the tip of the hook protruding from the side edge of each panel is C-shaped. The letter parts are rotatably fitted around the hinge shafts, and a notch is formed at the lower end of the hinge column by removing a portion extending from both hinge shafts to the tongue pieces at a predetermined height, and the notches are cut out at a predetermined height from both hinge shafts to the tongue pieces. A cutout window is formed at the lower end by removing the C-shaped part so as to match this notch, and one side of the block that is fitted into the lower end of the hinge column is exposed to the above-mentioned notch and the cutout window. A vertical hole passing through the vertical hole is provided, and a vertically long elongated hole communicating with the vertical hole is formed on one side exposed to the notch and the notch window, and the side surface of the vertical bar fitted into the vertical hole so as to be movable up and down is formed. A protruding operating lever protrudes to the outside through the elongated hole, and a ball is mounted at one location on the circumferential wall of the vertical hole, and is movable by a spring between a position protruding from the inner wall surface of the vertical hole and a position retracted from the inner wall surface. is provided, and while the ball is in elastic contact with the outer surface of the vertical bar due to the spring force of the spring, the vertical bar projects its lower end downward and fits into the recess provided at one place on the bottom of the lower rail. is moved up and down between the position where it is retracted into the hinge column, and when the lower end of the vertical bar is retracted into the hinge column, the ball enters the insertion hole that opens at one place on the outer circumference of the vertical bar, and the vertical bar is moved vertically. A locking structure for a folding door in which the rod is locked in this position and the C-shaped lower end surface of the hook that fits into each hinge shaft is latched to the upper end of the block.