JPS5922869B2 - Folding door lock structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a locking structure for a folding door, and more specifically, a vertical bolt 2 is provided on the back of the door 1 so as to be movable up and down, and the vertical bolt 2 is biased so as to protrude from the edge of the door 1. The vertical bolt 2 is configured to be able to be freely retracted by operating a retracting operation tool 3 from the front side of the door 1, and a kick board 6 is attached to the solid line of the horizontal piece 5 in which a through hole 4 is formed which is approximately equal to the cross-sectional area of the vertical bolt 2. is protruded, and the pivot piece 12 is extended in the direction of retiring the bolt,
A locking step 7 having a small diameter is formed on the front face of the tip of the vertical bolt 2, and a horizontal piece 5 is provided by inserting the through hole 4 into the upper end of the vertical bolt 2, and the horizontal piece 5 is attached to its pivot point. The branch piece 12 is pivoted to the door 1 so that it can only be tilted vertically or downwardly around the free end of the branch piece 12, and the horizontal piece 6 and the vertical bolt 2 are linked by a tension spring 8, so that when the vertical bolt 2 retires, the horizontal piece A bolt holder configured to allow the vertical bolt 5 to be rotated, and locks into a locking step 7 of the vertical bolt 2 when the vertical bolt 2 is rotated when the bolt 2 is retired, thereby preventing the vertical bolt 2 from protruding. 9 is formed at the edge of the through hole 4 of the horizontal piece 5, and a contact part 1 is formed at the opening 10 where the door 1 is attached to kick the kick plate 6 of the horizontal piece 5 to return the horizontal piece 5 to the horizontal position.
The present invention relates to a locking structure for a folding door, characterized in that the locking structure comprises: 1.

An object of the present invention is to provide a locking structure for a folding door that allows the folding door to be closed without any vertical bolt operation.

Embodiments of the present invention will be described in detail below with reference to the drawings.

Reference numeral 1 denotes a door, which is attached to a storeroom A, an assembly garage, an outdoor storage shed, etc. so as to be foldable and openable.

A vertical bar 2 is provided on the back side of the door 1 so as to be vertically movable.

The vertical bar 2 may be provided so as to protrude from the lower end of the door.

The vertical bar 2 is attached upwardly by a tension spring 8 so as to protrude from the upper end of the door 1.

Reference numeral 3 denotes a retirement operating tool, in which a push button 13 provided on the surface side of the door 10 and the vertical bolt 2 are linked by a lever or a link (not shown), and the vertical bolt 2 is retired by pushing the push button 13. This is so that it can be activated.

The mechanism for retiring the vertical bolt 2 by pressing the push button 13 can be modified in various ways, such as using a cam, for example.

Reference numeral 5 denotes a horizontal piece, in which a through hole 4 having a shape approximately equal to the cross-sectional area of the vertical bar 2 is provided.

From the actual record of the horizontal piece 5, a kick board 6 is provided to protrude upward.

A pivot piece 12 extends downward from the front edge of the horizontal piece 5.

A locking step portion 7 having a small diameter is formed on the distal end surface of the vertical bolt 2.

A step 15 for engaging a hole 14 formed in the upper part of the door 1 is formed on the rear surface of the tip of the vertical bolt 2.

A metal holder 16 is provided with a tongue piece 12a at the lower end of the pivot piece 12 on the door 1 by inserting the through hole 4 of the horizontal piece 5 into the upper end of the vertical bolt 2.
By inserting the horizontal piece 5 into the hole 16a, the horizontal piece 5 can be tilted up and down about the lower end of the pivot piece 12.

A tension spring 8 is tensioned between the vertical bolt 2 and the pivot piece 12.

As the vertical bolt 2 is retracted downward by pressing the push button 13, the horizontal piece 5 is rotated downward around the lower end of the pivot piece 12, as shown in FIGS. 3 and 5. It is possible to do so.

When the horizontal piece 5 is rotated downward, as shown in FIG. This is so that you can do it.

The upward movement of the horizontal piece 5 is prevented by a presser part 17 formed on the door 1.

As shown in FIG. 5, the upward protrusion of the lowered vertical bolt 2 is blocked by the horizontal piece 5 which has been turned and tilted, so that the vertical bolt 2 can be locked in its inactive state. It is.

At the upper edge of the opening 10 to which the door 1 is attached, a contact portion 11 for the horizontal piece 5 against the kick plate 6 is formed.

However, when closing the door 1 with the vertical bolt 12 retracted, the kick plate 6 is moved to the abutting portion 11 as shown in FIG.
At this time, the horizontal piece 5 is returned to the horizontal position as shown by the imaginary line, and the bolt holding part 9 is disengaged from the locking step 7 of the vertical bolt 2, and the horizontal piece 5 is returned to the horizontal position as shown in FIGS. 2 and 4. Kannuki 2
is pulled upward through the through hole 4 by the tension spring 8, and the upper end 2a of the vertical bar 2 projects into the bar hole 19 of the stile 18, thereby locking the door 1 in the closed state.

In such a case, the push button 13 returns to the protruding state.

In summary, the present invention forms a bolt holding part for restraining the protrusion of the vertical bolt on the edge of the through hole for inserting the vertical bolt in the horizontal piece that is rotated as the vertical bolt retires, and a locking step on the vertical bolt. Since the bolt is provided with a portion, when the vertical bolt is retired, the bolt holding portion of the horizontal piece that is rotated comes into contact with the locking stepped portion of the vertical bolt, thereby preventing the vertical bolt from protruding. In addition, a kick plate is provided protruding from the horizontal piece, and a contact portion for the kick plate is provided at the opening where the door is attached, so that when the door is closed and operated with the vertical bar in the retracted state, the kick plate of the horizontal piece will not touch the opening. The horizontal piece can be automatically returned to the horizontal position by hitting the contact part of the door, thereby releasing the restraining state of the vertical bolt, allowing the vertical bolt to protrude from the edge of the door and locking the door closed. When closing the door, the door can be closed without any operation on the vertical bar.

In addition, since the horizontal piece and the vertical bolt are linked by a tension spring, the vertical bolt is urged to retire and the horizontal piece is turned downward and the kick plate formed in series on the horizontal piece is forced to be kicked. This allows it to be biased to the ejection standby position.

In other words, the tension spring can serve both the function of urging the vertical bar to retire and the function of urging the kick board to protrude, and the advantage is that the structure can be simplified and the spring member can be omitted. be.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a storage room equipped with the folding door lock structure of the present invention, Fig. 2 is a perspective view of an embodiment of the same in the closed state, and Fig. 3 is a perspective view of the vertical bar in the open state. , 4th
The figure is a longitudinal sectional view of the same as above in the closed state, and Figure 5 is a longitudinal sectional view of the same as in the open state. 1 is the door, 2 is the vertical bar, 3 is the retractable operating tool, 4 is the through hole, and 5 is the horizontal piece. , 6 is a kick plate, 7 is a locking step, 8 is a tension spring, 9 is a bar holding portion, 10 is an opening, 11 is a contact portion, and 12 is a pivot piece.

Claims (1)

[Claims] 1. A vertical bolt is provided on the back of the door so as to be movable up and down, the vertical bolt is urged to protrude from the edge of the door, and the vertical bolt is configured to be freely retractable by operating a retracting operating tool from the door surface side, A kick board is protruded from the solid line of the horizontal piece that has a through hole approximately equal to the cross-sectional area of the vertical bolt, and the pivot piece extends in the direction in which the vertical bolt retires, and a small diameter lock is attached to the front of the tip of the vertical bolt. A step is formed, and a horizontal piece is installed by inserting the through hole into the upper end of the vertical bar, and the horizontal piece is pivoted to the door so that it can only be tilted up and down around the free end of the pivot piece. The horizontal piece and the vertical bolt are connected by a tension spring so that the horizontal piece can be rotated as the vertical bolt retires. A bolt holding part that locks onto the locking step and prevents the vertical bolt from protruding is formed at the edge of the through hole in the horizontal piece, and the kick plate of the horizontal piece is kicked into the opening where the door is attached to raise the horizontal piece. A locking structure for a folding door characterized by having a contact part for returning the door to a horizontal position.