JPS5851331Y2 - Opening/closing lock device for outward swinging door - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a device for locking a hinged door, which is pivoted to the left and right vertical frames of a window frame through hinges so that it can swing outward at an angle of 90 degrees or more in a horizontal position, at any open position.

When attempting to freely open and close a hinged door that can be opened wide to the outside of a house at any opening angle, considerable wind pressure is applied to the hinged door, so the locking device must be strong.

However, conventional locking devices tend to be too weak, and stronger ones require a lot of effort, making them difficult for women and girls to handle.

This invention focuses on this fact and attempts to make it possible to easily, reliably and strongly lock an external swinging door at any opening angle from a convenient position near the window frame.

The details will be explained below based on the drawings.

First, in Fig. 1, a window frame 2 fixed to an outer wall 1 of a house is shown.
A pair of left and right hinged doors 4 are pivotally mounted to the left and right vertical frames of the stile via hinges 3 in a horizontal position at an angle of about 180° so as to be able to swing outward.

In FIGS. 2 to 4, a rail 6 having left and right horizontally elongated rail grooves 5 on the lower stile of the window frame 2 is arranged in a double-sided manner, and the base end of the first arm 7 is placed near the hinge 3 side of the rail 6. Fulcrum P□
The first arm 7 is pivoted so as to horizontally swing outward, and one end of the second arm 8 is pivotally connected to the free end of the first arm 7.

A pin 9 is provided at the other end of the second arm 8, and this pin 9 is engaged in the rail groove 5 so as to be able to slide laterally.

The third arm 1 is placed near the free end side of the first arm 7.
A headed pin 11 is fixed to the free end of this third arm 10, and this pin 11 can freely slide along a rail groove 13 of a rail 12 screwed to the bottom of the hinged door 4. shall be involved.

And, at the pivot point P2 of the first arm 7 and the second arm 8,
The small diameter first gear 14 is connected to the second arm 8 via the support shaft 14a.
be connected as one.

Further, a large-diameter second gear 16 is integrally connected to the third arm 10 via a support shaft 16a at the pivot point P3 of the first arm 7 and the third arm 10, and the two gears 14 and 16 are engaged with each other. match.

In such a case, when the hinged door 4 is closed, the first and second arms 7.8 are in a posture extending linearly along the upper surface of the rail 6, and the third arm 10 is also in the position of extending in a straight line along the upper surface of the rail 6.
overlaps above.

If you push the hinged door 4 outward from this state, the first and second doors will open.
Arm 7.8 is bent and both pivot points P2 move outward.

Along with this, as shown in FIG. 3, the first arm 7
Since the second arm 8 swings counterclockwise around the pivot point 22 relative to the second arm 8, the first gear 14 integrated with the second arm 8 rotates at the same angle counterclockwise with respect to the first arm 7. As a result, the second gear 16 that meshes with the first gear 14 is rotated at a reduced speed clockwise, and the third arm 10 is rotated clockwise integrally with the gear 16.

Therefore, when opening the hinged door 4 by 90 degrees or more, by bending the first and second arms 7.8 so as to protrude outward, the third arm 10 is forcibly rotated and the hinged door 4 is opened. can be opened wide.

Moreover, when closing the hinged door 4, the first and second arms 7.8 are drawn inward and extended, thereby swinging the wide open hinged door 4 toward the closing side.

In addition to the above, the present invention is characterized in that the outward-opening door 4 is locked so that it does not move due to wind pressure.

The basic principle is to lock the bending and extension of the first and second arms 7.8 to fix the third arm 10 so that it does not swing.

More specifically, it is a means for preventing sliding movement of the locking point P4 of the second arm 8 with the rail 6.

Specific means for this purpose are particularly shown in FIG.

According to FIG. 2, a pin 9 provided at the end of the second arm 8 vertically passes through the arm 8 and the rail 6 and is attached to the pin 9 so as to be vertically movable. 0, and has a large diameter portion 18 at its protruding lower end.
An elastic body 19 made of plastic material is interposed between the large diameter portion 18 and the rail 16 shown in the lower figure, and an eccentric cam surface is formed on the outer peripheral surface of the proximal end of the lock lever 17 around the horizontal axis 0. Form 20.

In such a case, press the lock lever 17 as shown by the solid line in Figure 2.
is rotated to the upper surface of the end of the second arm 8,
The pin 9 is lowered and the locking point P4 is allowed to slide, but when the lock lever 17 is raised and rotated as shown by the imaginary line in FIG. 2, the cam action between the upper surface of the second arm 8 and the cam surface 20 As a result, the pin 9 is pulled up strongly, and the second arm 8 and the rail 6 are thus sandwiched between the cam surface 20 and the pin large diameter portion 18 via the elastic body 19, so that the second arm 8 is locked. The movement of point P4 was definitely and strongly prevented.

Also, when the swing door 4 is opened or closed, the first and second gears 14.
In order to prevent fingers from touching the occlusal parts of gears 14 and 16, and to prevent injuries from being pinched by the cuffs of clothing, protective covers 21 made of rubber or plastic are installed on both gears 14 and 16 to prevent dust. It is fitted over the top.

In the above embodiment, the rail groove 13 for guiding the tip pin 11 of the third arm 10 is formed in the rail 12 attached to the bottom of the hinged door 4, but the rail groove 13 is not formed directly in the bottom of the hinged door 4. It's okay.

As explained above, according to the present invention, the first gear 14 at the pivot point P2 of the first and second arms 7.8 rotates as the first and second arms 7.8 bend and extend. 2nd gear 1
6 to the third arm 10 to forcibly swing the hinged door 4.

Therefore, even when the swinging door 4 is opened outward by 90 degrees or more, the swinging door 4 can be opened and closed by bending and stretching the first and second arms 7.8 on the hand side without having to lean outside and extend a large hand. It's convenient.

In particular, the opening/closing lock of the hinged door 4 is performed by preventing the sliding movement of the locking point P4 of the second arm 8 on the hand side with the rail 6, and this sliding movement is prevented by using the eccentric cam surface 20. Lock lever 17
The structure achieves this by moving the pin 9 by performing a rocking operation to switch from a rotating position to a standing position, so locking and unlocking operations can be performed extremely easily and lightly, and the locking and unlocking operations can be performed very easily and easily. Since a strong lock can be obtained, the hinged door 4 can be reliably maintained at any opening angle even against large wind pressure.

[Brief explanation of drawings]

Figure 1 is a schematic plan view showing how the hinged door is installed and used;
3 is a plan view illustrating the operation of the hinged door, and FIG. 4 is a longitudinal sectional side view of the main part. 2... Window frame, 3... Hinge, 4...
...Holding door, 5...Rail groove, 6...
・Rail, 7...First arm, 8...
2nd arm, 9...pin, 10...3rd arm, 11...pin, 12...rail, 13...rail Groove, 14...1st gear, 16...2nd gear, 17...
Lock lever 118...Large diameter part, 19...
...Elastic body, 20...Eccentric cam surface, 21...
・・・Protective cover

Claims (1)

[Scope of utility model registration request] Attach the hinged door 4 to the left and right vertical frames of the window frame 2 via the hinge 3.
The base end of the first arm 7 is attached to the lower stile of the window frame 2 near the hinge 3 side of the lower stile so that it can be pivoted so that it can swing outward in a horizontal position of more than 300°, and can swing outward horizontally around the fulcrum P1. one end of the second arm 8 is pivotally connected to the free end of the first arm 7;
A pin 9 is provided at the other end of the arm 8, and this pin 9 is engaged in the rail groove 5 of the rail 6 attached along the lower sill of the window frame 2 so as to be able to slide horizontally, and the pin 9 is inserted into the free end side of the first arm 7. One end of the third arm 10 is pivotally connected to a nearby position, a pin 11 is provided at the free end of the third arm 10, and the pin 11 is engaged in a rail groove 13 provided along the bottom of the hinged door 4 so as to be slidable laterally. Enter,
A first gear 14 integrated with the second arm 8 is provided at the pivot point P2 of the first and second arms 7.8.
A second gear 16 integrated with the third arm 10 is provided at the pivot point P3 of 10 so as to mesh with the first gear 14.
Due to the bending and stretching of the arm 7.8 around the pivot point 22, the third
The arm 10 is configured to forcibly swing around the pivot point 23 via both gears 14 and 16, and then the second arm 8
A pin 9 provided on the second arm 8 and the rail 6 is passed through the second arm 8 and the rail 6 in a vertically movable manner, and a lock lever 17 that swings around the horizontal axis 0 is pivotally attached to the protruding upper end of the pin 9.
An eccentric cam surface 20 is formed around the horizontal axis 0 on the outer peripheral surface of the base end of the pin 9, and a large diameter portion 18 is provided at the lower end of the pin 9.
An elastic body 19 is interposed between the lock lever 17 and the rail 6, and when the lock lever 17 swings up and down, the eccentric cam surface 20 comes into contact with the upper surface of the second arm 8, thereby pulling up the pin 9 and moving the second arm 8.
An opening/closing lock device for an outward swinging door characterized in that an arm 8 and a rail 6 are elastically clamped by a cam surface 20 and a large diameter portion 18.