JPH0728395Y2 - Sliding shutter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a sliding shutter having an articulated slat that can be used particularly for furniture.

[Conventional technology]

Examples of the general type of sliding shutter described above include those described in French Patent No. 2,600,114 by the present applicant and No. 2,606,826 of the utility patent of the same country.

[Problems to be solved by the device]

An object of the present invention is to improve the rigidity of a novel structure of the articulated joint slats, especially the sliding shutter formed by these slats, and to secure the lock of the articulated joint slats by snap fitting.

[Means for Solving the Problems]

To this end, the present invention comprises a plurality of slats vertically articulated between two vertically opposed slideways, mounted on a common axis and articulated. At least 2
In the sliding shutter intended to drive the slat by a number of pinions, especially to move in the longitudinal direction,
It has a substantially flat rear wall and two projecting portions projecting in a direction away from the rear wall, and a recess portion into which the pinion teeth of the sliding shutter fit is formed between these two projecting portions. Front walls, and laterally of these two walls, complementary parts are provided at corresponding parts of the adjacent slats to complement each other and rotatably articulate, and for supporting the recesses. An internal spacer portion is provided, and the spacer portion is configured to give appropriate rigidity to the slats together with the front wall and the rear wall, and one of the complementary connecting portions has a front wall and a rear wall when viewed in cross section. And a first portion that is concavely curved toward the inner side of the slat and that has a second portion that projects toward the outside of the slat on the wall opposite to the rear wall. This is the second extension
A portion is recessed toward the first portion, and a third arcuate portion is provided extending from the second portion so as to be convexly curved outward of the slat, and the third arcuate portion is bent toward the first portion. And a fourth portion that is substantially parallel to the rear wall of the slat, and the other complementary connecting portion has a first portion that, when viewed in cross section, is concavely curved toward the inside of the slat and that connects the front wall and the rear wall.
A portion is provided, and this concave curved first portion is provided by extending a second portion that is convexly curved toward the outside of the slat on the side opposite to the front wall, and the second portion is in the shape of a quadrant. age,
Further, the hook element is provided by bending back from the free end of the second portion toward the rear wall of the slat, and the joint connecting slat is configured to form a gap between the free end of the hook and the concave curved first portion. It is characterized by having done.

In the preferred embodiment of the invention, the pinion is a twelve toothed pinion.

[Action]

According to the above configuration, the hook of one slat of the complementary connection portion snaps into the third arcuate portion and the fourth portion of the complementary connection portion of the adjacent slat, so that the joint connection between the two adjacent slats is achieved. It completes the locking of the links and improves the rigidity of the assembly thus obtained, the sliding shutter.

〔Example〕

 Next, preferred embodiments of the present invention will be described with reference to the drawings.

In the embodiment of FIG. 1, the sliding shutter 1 comprises a plurality of slats 2 articulated with each other and arranged between an upper slide way 3 and a lower slide way 4. These slideways are preferably formed by U-shaped members that open toward the bottom and the top, respectively. The slideway 4 may be secured to a metal panel 5 which forms the base of a furniture or storage product.
The slide way 3 is similarly fixed to the upper portion (not shown) of the furniture product.

The drive for the shutter 1 may be located in one of the right-angled corners of the furniture product. The drive preferably has a pair of pinions 6 and 7 provided with twelve teeth, which are respectively supported on bearings provided on slideways 3 and 4 and which have a common rectangular bar shape. Attach it to the shaft 8. The axis of this shaft is aligned with the curvature axis of the corner and the bearing axis of the pinion.

The outlines of the teeth 6a and 7a of the pinions 6 and 7 are first shown in the gutters (recesses) 2a arranged on both sides of the symmetrical vertical axis of the slat 2,
The slat is then designed to alternately engage the gutter element 23 formed by the complementary connections 2c and 2d of two adjacent slats 2, each slat being a flat rear wall 20 and a gutter 2a.
And a front wall 21 having two protrusions 2e and 2f forming The gutter 2a is supported by the vertical spacer portion 2b of each slat 2, which spacer portion 2b is preferably located on the symmetrical vertical axis of the slat.

The flat rear wall 20 and the front wall 21 forming the recessed portion, that is, the gutter 2a at the center, are connected to the complementary connecting portions 2c and 2c of each slat 2.
Connect by 2d and add sideways. This will be described in detail with reference to FIG.

The complementary connecting portion 2c has a concave curved first portion 10 which is concavely curved toward the inner side of the slat and which connects the front wall 21 and the rear wall 20 as seen in a sectional view, and the first portion is connected to the rear wall. On the side opposite to 20, projecting as a second portion 11 toward the outside of the slat, the second portion 11 is recessed toward the first portion, and is curved from the second portion 11 to the outside of the slat. 3rd bow section
12 is provided as an extension and the third part is bent towards the first part 10 and terminates in a fourth part 13 which is substantially parallel to the rear wall 20 of the slat and between the free end of the part 13 and the first part 10. Create a space.

The complementary connecting portion 2d on the opposite side is provided with a first portion 14 that is curved in a concave shape toward the inside of the slat and that connects the front wall 21 and the rear wall 20 when viewed in cross section. Front wall
A second portion 15 in the shape of a quarter of a circle that is convexly curved toward the outside of the blade on the side opposite to 21 is provided by extension.
The hook element 16 bent back toward the rear wall 20 of the slat is projected from the free end of the second portion 15 to hook the complementary connecting portion 2d.
A gap remains between the free end of 16 and the first portion 14.

According to the design described above, the snap fit between the hook element 16 and the third arcuate portion 12 ending in the fourth portion 13 results in a complete locking of the two adjacent portions. Thus, according to the present invention, the rigidity of the sliding shutter 1 caused by the slats 2 is further enhanced.

Further, according to the slat of the present invention, the sliding shutter 1 is
The ball-pivot type interaction of the complementary connections of two adjacent slats 2 allows them to move without being caught or blocked.

As shown in FIG. 2, the pinion 7 has a peripheral rib 7b therein which forms a fixed structure for the rectangular bar 8. The pinion 6 also has a similar fixed structure. Further, as clearly shown in FIG. 2, the gutter 23 formed by the tooth 7a of the pinion 7 and the gutter (recess) 2a arranged on the axis of symmetry of the slat 2 and the complementary connecting portions 2c and 2d of the two adjacent slats 23.
By engaging with, a particularly efficient drive of the chain-pinion type can be obtained.

A groove 4a is provided at the bottom of the slide way 4, and the lower surface of the slat 2 is placed in this groove so that friction is minimized.

FIG. 4 shows an end slat 2'having a simplified structure of the intermediate slat 2 mentioned above, which simplified structure does not differ from the technical effect obtained by the special complementary connection of the intermediate slat.

[Effect of device]

In addition to solving the problem of improper driving of the slats and jamming in the slideways, the invention enables sliding shutters with increased rigidity and the slats being well locked to each other.

The above has described only the preferred embodiments of the present invention, and it is needless to say that various modifications can be made within the scope of the claims.

[Brief description of drawings]

FIG. 1 is a partially cutaway diagrammatic perspective view of the sliding shutter of the present invention, FIG. 2 is a cross-sectional view of the sliding shutter in the vicinity of a driving device, and FIG. 3 is an articulated slat according to the present invention. FIG. 4 is a cross-sectional view of an end slat according to the present invention. 1 ... Sliding shutter, 2 ... Slat 2a ... Gutter (recess), 2b ... Spacer structure 2c, 2d ... Complementary connecting part, 2e, 2f ... Projection 2 '... End slat, 3 ...... Up and down slide way 4 ...... Lower slide way, 4a ...... Groove 6,7 ...... Pinion, 6a, 7a ...... Tooth 8 ...... Axis (square bar), 10 ...... First part 11 ...... Second part , 12 ... Third arcuate portion 13 ... Fourth portion, 14 ... First portion 15 ... Second portion, 16 ... Hook element 20 ... Rear wall, 21 ... Front wall 23 ... Gutter element ( (Recess)

Claims (2)

[Scope of utility model registration request] 1. A plurality of slats (2), which are articulated to each other and vertically arranged between two vertically opposed slideways, are mounted on a common axis and engage with the articulated slats. In a sliding shutter intended to drive the slat by at least two pinions, and in particular to move in the longitudinal direction, a substantially planar rear wall (20) and a protrusion away from the rear wall (20) Two
Has two protrusions (2e, 2f), and these two protrusions (2e, 2f)
A front wall (21) formed with a recess (2a) into which the teeth of the pinion (6, 7) of the sliding shutter fits between 2f), and the side of these two walls (20, 21) At the corresponding portions of the adjacent slats (2), complementary connecting portions (2c, 2d) that complement each other and jointly rotate are jointly provided, and the recessed portion (2a)
An internal spacer portion (2b) is provided for supporting the slat (2c), and the spacer portion imparts appropriate rigidity to the slat (2) together with the front wall and the rear wall, and one of the complementary connecting portions (2c ) To the front wall (2
1) and the rear wall (20) are connected to each other, and a first portion (10) which is curved inward toward the inside of the slat is provided, and the concave curved first portion (10) is provided with the rear wall (20). A second portion (11) protruding toward the outside of the slat (2) is provided on the opposite side, and the second portion (11) is recessed toward the first portion (10). A third arcuate portion (12) curved from the second portion (11) to the outside of the slat in a convex shape.
Is provided as an extension, and the third arcuate portion is bent toward the first portion (10) and is terminated by a fourth portion (13) substantially parallel to the rear wall (20) of the slat, and the other complementary connecting portion ( 2d)
The first part (1), which is concavely curved toward the inside of the slat and which connects the front wall (21) and the rear wall (20), is seen in cross section.
4) is provided, and the concave curved first portion (14) is connected to the front wall (2).
A second portion (15) which is convexly curved toward the outside of the slat on the side opposite to 1) is provided by extension, and the second portion (15) has a quadrant shape. A hook element (16) bent back from the free end of the portion (15) toward the rear wall (20) of the slat is provided, and between the free end of the hook (16) and the concave curved first portion (14). A sliding shutter characterized by being constituted by joint-jointed slats having a structure that creates a gap. 2. Sliding according to claim 1, wherein the recessed portion (2a) is constituted by a gutter (2a) which expands toward both sides toward the front wall (21) about the axis of symmetry of the slats (2). shutter.