JPH057418Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application This invention relates to a sliding door locking device.

Conventional technology A conventional device for preventing the removal of screen doors, glass shoji, etc. has a rail fitting groove that opens upward at the top, and a roller is located at the bottom end of the groove, and slides up and down on the top end of the vertical stile of the sliding door. A retaining device that can be attached and urged upward by a spring is disclosed in, for example, Japanese Utility Model Application No. 57-161676.
No., Utility Model No. 57-168687, Utility Model No. 58-19082,
Various proposals have been made as shown in publications such as Utility Model Application Publication No. 146166/1983.

Problems to be solved by this invention: The spindle of the roller in the conventional locking device as described above is provided separately from the spring, and both ends of the spring must be locked at different locations from the roller, resulting in a complicated structure. Become. Furthermore, it is time-consuming to replace the rollers when they are worn out due to long-term use. Further, it is desirable that the retaining device be easily installed and that there is no risk of it falling off.

This idea can be easily installed by simply inserting it into the vertical stile of the shoji from above, and in addition, one end of the spring that biases the retaining device is integrated into a pin for supporting the roller, making it a small part. This design has been devised to make the retainer simpler and more practical, as well as to facilitate parts replacement.

Means for Solving the Problems In this invention, the locking device main body 1 is fitted into the hollow part of the vertical stile 19 of the sliding door 17, and the locking device main body 1 is fitted into the locking recess 11 at the bottom of the locking device main body 1. The locking protrusion 31 of the vertical frame 19 is engaged with the locking protrusion 31, and the rail fitting groove 4 into which the upper frame rail 34 is fitted is provided at the upper part of the locking device main body 1.
A roller 12 that comes into contact with the lower end of the upper frame rail 34 is rotatably supported at the bottom of the upper frame rail 34, and a spring 13 that biases the retaining device main body 1 upward toward the upper frame rail 34 is attached to the retaining device. The spring 13 is attached to the main body 1 and has one end 13 which is bent and serves as a support pin passing through the roller 12.
This structure is characterized in that it is a linear spring integrally provided with a spring 13a and the other end 13b which is brought into contact with the vertical stile 19 in order to urge the locking device main body 1 upward.

Embodiments Hereinafter, this invention will be explained in detail with reference to illustrated embodiments.

In the figure, reference numeral 1 denotes a retaining body, which is made of synthetic resin. The retaining body 1 has a prismatic shape,
Its width W1 is the projecting piece 26 of the vertical stile 19, which will be described later.
It is approximately the same as the width W2 between 26 and 26. Retainer body 1
The thickness t is from one side 25a of the vertical stile 19 to the protruding piece 2.
The length is approximately the same as the length up to the locking portions 27, 27 provided on the holes 6, 26.

Projections 2 and 3 are provided on one side of the retaining body 1 at appropriate intervals vertically. Projections 2, 3
The width W3 is approximately the same as the width W4 between the locking portions 27, 27 provided on the projecting pieces 26, 26 of the vertical stile 19.

A rail fitting groove 4 that opens upward is recessed in the upper part of the retaining body 1. Tapered surfaces 4a, 4a are formed at the upper ends of the left and right side surfaces of the rail fitting groove 4.

A roller mounting recess 5 wider than the width of the rail fitting groove 4 is formed at the lower end of the rail fitting groove 4 . A pin insertion hole 6 is horizontally passed through the left and right side surfaces of the roller mounting recess 5.

On the opposite side of the retaining body 1 from the side on which the protrusion 2 is protruded, a screw head accommodating portion 7, which is slightly elongated in the vertical direction, is recessed below the roller attachment recess 5. A screw insertion hole 8 is passed through the screw head storage portion 7 from the opposite side.

A mounting plate fitting recess 9 is provided below the screw head accommodating portion 7 on the side surface from which the protrusions 2 and 3 protrude. A screw insertion hole 10 is formed through the mounting plate fitting recess 9 on the opposite side.

A vertically long locking recess 11 is provided on the opposite side of the protrusion 3.
is recessed.

The outer peripheral surface of the lower end of the retaining body 1 is tapered so that the tip becomes thinner as it goes downward.

In the roller mounting recess 5 of the retaining body 1 as described above, the roller 12 which becomes the bottom of the rail fitting groove 4 is located. The spring 13 is a linear spring, with one end 13a and the other end 13a.
b is projected laterally. Part 13 of them
a is bent at a right angle, inserted into the pin insertion hole 6 of the retaining body 1, and passed through the roller 12, so that the roller 12 is rotatably supported.

Fitted into the mounting plate fitting recess 9 of the retaining body 1 is a steel mounting plate 14 having a screw threading hole 15 with a female screw threaded on the inner circumferential surface in the center.
A screw 16 is screwed into the screw hole 15 of the mounting plate 14, and the tip of the screw 16 is inserted into the screw insertion hole 10.

The sliding door 1 has the above-mentioned configuration as a stopper.
7. In the embodiment, it is attached to a screen door.

The screen door 17 has upper and lower horizontal stiles 18, 18, and left and right vertical stiles 19, 19 assembled in a rectangular shape, and is covered with an insect screen 20.

The horizontal stile 18 includes a base portion 22 in which screw holes 21 are formed continuously in the longitudinal direction at the left and right intermediate portions, and side surfaces 23, 23 are formed upward from the left and right ends of the base portion 22 in the width direction. A mesh fitting portion 24 having an L-shaped cross section is formed continuously in the longitudinal direction on the lower surface of the base portion 22 . The left and right ends of the mesh fitting part 24 are cut out to be slightly shorter than both ends of the base part 22.

The stile 19 has a hollow portion 25 having a rectangular cross section, and projecting pieces 26, 26 that are continuous in the vertical direction are provided on the left and right ends in the width direction of one end surface 25a of the hollow portion 25. The protrusions 26, 26 are provided with locking portions 27, 27 which are continuous in the vertical direction and protrude from surfaces facing each other. On the side surface 25b of the vertical stile 19 opposite to the surface on which the protrusions 26, 26 are protruded, there is a mesh fitting part 29 which has a substantially L-shaped cross section and has protrusions 28, 28 formed at both left and right ends. It is installed protrudingly. The side surface 25a of the hollow part 25 of the vertical stile 19 as described above, on which the projecting pieces 26, 26 are protruded, is cut out at a slight height from the upper end, and a screw insertion hole 30 is bored slightly below the upper end. There is. Furthermore, a U-shaped cut is made in the side surface 25a slightly below the screw insertion hole 30, and a locking protrusion 31 is formed by bending in the direction of the protrusions 26, 26. The side surface 25b of the hollow part 25 on which the mesh fitting part 29 projects is cut further down, and the height h1 of the cutout is the same as the height h2 of the side surface 23 of the horizontal stile 18. The mesh fitting portion 29 of the vertical stile 19 is cut out further downward.

Into the hollow part 25 of the vertical stile 19 as described above, the base 22 of the horizontal stile 18 and the side 2
3 and 23 are inserted. Base 22 of stile 18
is in contact with the opposite side surface 25a of the hollow portion 25, and the screw hole 21 and the screw insertion hole 30 are in communication with each other. Side stile 18
The mesh fitting portion 24 of is in contact with the side surface 25b of the vertical stile 19, and the top of the mesh fitting portion 29 of the vertical stile 19 is cut out.
Both mesh material fitting parts 24 and 29 are continuous.

By inserting the retaining body 1 into the vertical stile 19 from above, it is fitted between the hollow side surface 25a of the vertical stile 19 and the locking parts 27, 27 of the protrusions 26, 26, and can be slid up and down. It's summery. Also, the locking part 2
Projections 2 and 3 protrude from between 7 and 27. In the locking recess 11 at the bottom of the locking body 1, there is a vertical frame 1.
The locking protrusion 31 of 9 is engaged.

One end 13b of the spring 13 to which the roller 12 is not attached comes into contact with the upper end of the side surface 25a of the hollow part of the stile 19, thereby urging the retaining body 1 upward.

As described above, since the locking protrusion 31 of the vertical stile 19 is fitted into the locking recess 11, the locking protrusion 31
comes into contact with the lower end of the locking recess 11, and the retaining body 1
Even if the spring 13 biases the spring 13, it is prevented from jumping upward.

A screw 32 is inserted from the screw insertion hole 8 of the retaining body 1.
is inserted through the screw insertion hole 30 of the vertical stile 19 and screwed into the screw hole 21, thereby connecting the vertical stile 19 and the horizontal stile 1.
8 are connected. The head of the screw 32 is located in the screw head storage portion 7 of the retainer body 1, and does not interfere with the vertical movement of the body 1.

Screen door 17 with a retainer attached as described above
This section explains how to attach the window frame to the window frame.

The screen door rail 34 of the upper frame 33 is fitted into the rail fitting groove 4 of the retaining body 1, and built in in a kendon style. Since the retaining body 1 is urged upward by the spring 13, it moves upward until the lower end of the rail 33 comes into contact with the roller 12, and is automatically prevented from coming off. Further, the height of the retaining body 1 is appropriately determined.

When the screw 16 is screwed together in this state, the tip of the screw 16 comes into pressure contact with the hollow side surface 25a of the stile 19, and both ends of the mounting plate 14 are connected to the locking portions 27, 27 of the protrusions 26, 26.
The retainer main body 1 is fixed by pressure contact with the retainer body 1.

When opening and closing the sliding door 17, since the roller 12 is in contact with the lower end of the rail 34, the spring 1
It is possible to slide smoothly even when the urging force of 3 is applied.

Effects of the invention Since this invention has the above configuration, the following effects can be obtained.

This locking device can be easily installed by simply inserting it into the stile from above, and the locking protrusion of the stile is fitted into the locking recess. Since it comes into contact with the lower end of the recess and prevents the device from jumping upwards even when the main body of the device is biased by the spring, there is no risk of the device falling off the shoji before the shoji is hung on the frame. . Further, the spring is a linear spring that is bent and integrally includes one end that serves as a support shaft pin that passes through the roller, and the other end that contacts the vertical stile and urges the retaining device body upward. Since the roller support shaft and spring are integrated, the number of parts can be reduced, and the structure is simple and assembly is easy.
Furthermore, when replacing the roller, the roller can be quickly removed from the retaining body by holding the spring in the hand and pulling it in the lateral direction, and a new roller can be easily installed by performing the reverse operation.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of one embodiment of the sliding door retainer of this invention, Fig. 2 is its longitudinal sectional view, Fig. 3 is its - line sectional view, Fig. 4 is its plan view, and Fig. 5 is its longitudinal sectional view.
The figure is a partially cutaway partial perspective view of the sliding door. 1... Removal prevention body, 2, 3... Protrusion, 4...
Rail fitting groove, 5... Roller mounting groove, 6... Pin insertion hole, 7... Screw head storage, 8... Screw insertion hole, 9... Mounting plate fitting recess, 10... Screw insertion hole, 11...Locking recess, 12...Roller, 13...
...Spring, 13a...One end, 13b...Other end, 14...Mounting plate, 15...Screw threading hole, 16
...screw, 18...horizontal stile, 19...vertical stile, 20...
...Insect net.

Claims (1)

[Scope of utility model registration request] The locking device main body 1 is fitted into the hollow part of the vertical stile 19 of the sliding door 17, and the locking protrusion 31 of the vertical stile 19 is locked in the locking recess 11 in the lower part of the locking device main body 1. A rail fitting groove 4 into which the upper frame rail 34 fits is provided in the upper part of the retaining device main body 1, and a roller 12 which comes into contact with the lower end of the upper frame rail 34 is provided at the bottom of the rail fitting groove 4. A spring 13 is attached to the retaining device main body 1, which is rotatably supported and urges the retaining device main body 1 upward toward the upper frame rail 34. A sliding door characterized in that it is a linear spring integrally provided with one end 13a serving as a penetrating support shaft pin and the other end 13b abutting against a vertical stile 19 in order to bias the retaining device main body 1 upward. Removal prevention device.