JP2512965Y2 - A shutter consisting of a series of slats - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a shutter which is attached to the outside of a sash for the purpose of lighting, shielding, windproofing, rainproofing, crime prevention and the like.

[Conventional technology]

Recently, it has been found that a shutter in which a large number of slats are connected in a string of upper and lower beads is moved up and down by mechanical force.

4 and 5 show a conventional slat connection structure, the head formed on the upper part of the slat 3.
The hook body 1 consisting of 1a and a neck portion 1b is placed in a receiving chamber 2 consisting of an upper wall 2a also formed at the bottom of the slat 3, a side wall 2b and a bottom wall 2d partially formed with an opening 2c. Department
1a is inserted, and the neck portion 1b is accommodated and connected in a state of being inserted through the opening 2c.

FIG. 6 is a side view in the case of raising and lowering a shutter in which such slats 3 are linked. The slats 3 are wound around the drum 4, and the drum 4 is rotated in the forward and reverse directions to move up and down. Therefore, when the shutter is rolled up, the receiving chamber 2 moves relatively upward, that is, the head 1a of the hook body 1 comes into contact with and locks with the bottom wall 2d of the receiving chamber 2, and the neck 1b opens the opening 2c. It looks like the whole thing is hung by inserting it. Then, when the slat 3 is wound around the drum 4, the hook body 1 rotates with respect to the receiving chamber 2 about the point where the head 1a of the hook 1a engages with the bottom wall 2d of the receiving chamber 2 as a center of rotation, and the hook body 1 mutually moves. It will be in a state of bending. In this case, the smaller the winding diameter, that is, the larger the bending angle between them, the more compact the box for accommodating the shutter and the like. Therefore, the gap between the neck portion 1b of the hook body 1 and the opening 2c is large. It means that it is good. On the other hand, when the shutter is lowered, the receiving chamber 2 moves relatively downward, that is, the hook body 1 is housed in the receiving chamber 2, but at this time, the hook body 1 and the receiving chamber 2 are displaced in the front and rear positions. The higher the regulation force of, the higher the rigidity and the stronger the resistance against external force such as wind. For this reason, in this state, the upper part of the hook body 1 and the upper part of the receiving chamber 2 are engaged with each other, and the regulation is strengthened. Therefore, in this case, if the gap between the neck portion 1b of the hook body 1 and the opening 2c of the receiving chamber 2 is large, this regulation is weakened. As described above, the hook body 1 and the receiving chamber 2 are required to have contradictory functions when they move up and down, and it has been difficult to eliminate this contradiction.

[Problems to be solved by the device]

Therefore, Japanese Utility Model Publication No. 47-34528 proposes a so-called two-point restriction structure, in which when the slat is contracted and the hook body is housed in the receiving chamber, front and rear positional deviations are restricted by two points at the upper and lower sides. Has been done. However, the lower position regulation structure in this structure is not provided between the hook body and the opening. Therefore, the gap between the neck of the hook body and the opening is kept small so that the hook body does not dance in the opening, and when the slats are wound around the drum, the bending angle of both slats cannot be made large. Therefore, it still has a drawback that a small winding diameter cannot be obtained. Also, because they rub against each other tightly, squeaking noises are loud.

[Means for solving the problem]

Under the above problems, the present invention provides a hook body including a head portion and a neck portion formed on an upper portion of a slat, an upper wall formed on the bottom portion of the slat, a side wall and a bottom wall having an opening formed on a part thereof. When the head part of the hook body is inserted into the receiving chamber, and the neck part is inserted into the opening so that they can be moved up and down, and when the receiving chamber is moved downward with respect to the hook body, When the head of the body and the upper wall of the receiving chamber are engaged to regulate the positional displacement between the front and rear, and when the receiving chamber is moved upward with respect to the hook body, the head of the hook body is the bottom of the receiving chamber. In a shutter that is made up of slats that are locked to a wall and allow bending to each other, form a wide opening in the receiving chamber to secure a sufficient gap with the neck of the hook body to hook the receiving chamber. If you set it so that the mutual bending angle increases when you move it up against the body Also, when the base of the neck of the hook body is made thick to enter the opening of the receiving room without any gap, when the receiving room is moved downward with respect to the hook body, the head of the hook body and the receiving room A shutter composed of a series of slats, characterized in that the upper wall and the side wall of the hook, the root of the neck of the hook body, and the opening of the receiving chamber are engaged with each other to regulate the positional displacement between the front and rear. It is provided.

[Action]

By taking the above means, that is, by forming the opening of the receiving chamber wide and ensuring a sufficient gap with the neck of the hook body, the receiving chamber and the hook body are extended to make the slats a drum. When wrapped, the mutual bending angle can be increased, the winding diameter can be reduced, and the squeaking noise is small.
Also, because the base of the neck of the hook body is made thicker so that it can fit into the opening without any gap, when the receiving chamber and the hook body are contracted, the upper and lower two-point regulation can be achieved, and the front and rear misalignment occurs. Difficulty and increased rigidity.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a sectional view showing a state when the slat according to the present invention is extended, and FIG. 2 is a sectional view showing a state when the slat is contracted, but the slat 3 constituting the shutter is basically the same as described above. It is the same as the ones (therefore, the symbols are used as they are). Reference numeral 5 in the drawing denotes a slit formed in the neck portion 1b of the hook body 1, and when the slat 3 is extended, the slit 5 is exposed to enable lighting and ventilation.

FIG. 3 shows the mounting state of such a shutter. A storage box 7 for storing this shutter is provided on the upper outside of the window frame 6 and the like, and the drum 4 provided in the box 7 is connected in a chain shape. The connected slats 3 are stored in the storage box 7 by winding them. Then, the drum 4 is rotated by a mechanical force such as a motor (not shown) or a manual force by a handle, whereby the shutter can be raised and lowered.

By the way, in this invention, first, when the slat 3 is contracted, that is, when the upper receiving chamber 2 moves downward with respect to the hook body 1, the head portion 1a of the hook body 1 and the upper wall 2a of the receiving chamber 2 are first.
The side wall 2b, the root portion 1c of the neck portion 1b of the hook body 1 and the opening 2c of the receiving chamber 2 are engaged with each other to regulate the positional displacement between the front and rear, that is, a so-called upper and lower two-point regulation. Among these, the upper position regulation structure is based on the head portion 1a of the hook body 1, the upper wall 2a and the side wall 2b of the receiving chamber 2, and the specific structure thereof is determined by the shapes of both, but in this example. The downward bending portion 2e is formed in a part of the upper wall 2a of the receiving chamber 2, and the lower portion of the head portion 1a of the hook body 1 is abutted against the side wall 2b, and the upper portion is in the upper wall 2a.
The recess 2f formed by the lower bent portion 2e and the lower bent portion 2e is made to enter the recess 2f. On the other hand, the lower position restricting structure is configured such that the base portion 1c of the neck portion 1b of the hook body 1 is formed thick so that it can be inserted into the opening 2c without a gap. By doing so, the position of the hook body 1 is regulated with respect to the receiving chamber 2 at two points above and below, and the hook body 1 does not move forward or backward.

Next, when the slat 3 extends, that is, when the upper receiving chamber 2 moves upward with respect to the hook body 1, the lower end of the head 1a of the hook body 1 contacts the upper surface of the bottom wall 2d of the receiving body 2. Then, the lower slats 3 are lifted in this state. Then, when the slat 3 is wound around the drum 4, the hook body 1 is pivoted around a locking point between the head portion 1a of the hook body 1 and the bottom wall 2d of the receiving body 2 and the two slats 3 are bent. . In the present invention, the opening 2c of the receiving chamber 2 in this case is formed wide so as to secure a sufficient gap with the neck portion 1b of the hook body 1. As a result, both slats 3 can be bent greatly and the winding diameter around the drum 4 can be made small. By the way, in this case, the lower end of the head 1a of the hook body 1 is formed in the spherical portion 1d, and the recess 2g for partially receiving the spherical portion 1d is formed on the upper surface of the bottom wall 2d of the receiving chamber 2. ,
Further, it is conceivable to form the recessed portion 2g at this time directly below the spherical portion 1d. In this way, when the upper receiving chamber 2 moves upward with respect to the hook body 1, the spherical portion 1d formed on the head portion 1a of the hook body 1 immediately receives the recess formed on the bottom wall 2d of the receiving chamber 2. It fits into the portion 2g and the center of rotation does not move. Therefore, both slats 3 do not sway, do not slide during winding on the drum, and do not creak.

[Effect of device]

As described above, since the present invention is the one described above, the following effects can be expected. First, by forming a wide opening in the receiving chamber and ensuring a sufficient gap between the neck of the hook body and the neck portion of the hook body, when the slats are wound around the drum with the hook body and the receiving chamber being extended, the slat will be bent over each other. You can increase the angle,
The winding diameter can be reduced and the squeaking noise at this time is also small. Then, in this case, the lower end of the head of the hook body is formed into a spherical portion, and the recessed portion for partially receiving this spherical portion is formed on the upper surface of the bottom wall of the receiving chamber. If the recessed portion is formed right below the spherical portion, there will be no slippage between the slats and the slats when they are wound around the drum, and no squeaking noise will be generated, and the slats will be smooth. Secondly, since the hook body and the receiving chamber are regulated in front and rear position displacement at two points, the rigidity is increased and the crime prevention effect is high.

[Brief description of drawings]

1 and 2 are cross-sectional views showing a connected state of slats in the shutter according to the present invention, FIG. 3 is a cross-sectional view of the shutter, and FIGS. 4 and 5 are connected states of slats in a conventional shutter. FIG. 6 is a sectional view showing a state in which the slats are wound around the drum. (Code) 1 ... Hook body 1a ... 〃 head part 1b… 〃 neck part 1c… 〃 neck part 1d… 〃 head spherical part 2… Collection room 2a… 〃 upper wall 2b… 〃 side wall 2c ... Opening of bottom wall of 2d ... Bottom wall of 〃 2g… Depression of bottom wall of 〃 3… Slat

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Shigeru Fujiwara Shigemitsu Fujiwara 2-7-1, Ima 2-chome, Okayama-shi, Okayama Oka Machinery Co., Ltd. Okayamamoto (56) References Kosho 47-38460 (JP, Y1)

Claims (2)

(57) [Scope of utility model registration request] 1. A hook body composed of a head portion and a neck portion formed on an upper portion of a slat, and a hook chamber formed of an upper wall also formed on the bottom portion of the slat, a side wall and a bottom wall partially formed with an opening. , When the head of the hook body is inserted and the neck is inserted into the opening so as to be movable up and down with respect to each other and the receiving chamber is moved downward with respect to the hook body, at least the head of the hook body and When the upper and other walls of the receiving chamber are engaged to regulate the positional displacement between the front and rear, and the receiving chamber is moved upward with respect to the hook body,
In a shutter in which the head of the hook body is locked to the bottom wall of the receiving chamber and a series of slats that allow mutual bending is formed, the opening of the receiving chamber is formed to be wide enough to allow sufficient space between the hook body and the neck. A large gap is secured and the bending angle of the receiving chamber is increased when the receiving chamber is moved upward with respect to the hook body, and the neck of the hook body is made thicker to form a thicker receiving chamber. When the receiving chamber is moved downward with respect to the hook body with a structure that is inserted into the opening of the hook body without any space, the head of the hook body and the upper and side walls of the receiving body, the root of the neck of the hook body and the opening of the receiving chamber A shutter comprising a series of slats, characterized in that and are engaged with each other to prevent the positional deviation between the front and the rear. 2. A spherical portion is formed on the head portion, and a recess portion for partially receiving the spherical portion is formed on the bottom wall at a locking point between the head portion of the hook body and the bottom wall of the receiving chamber. In addition, the shutter formed by connecting the slats according to claim 1 is characterized in that the recessed portion is provided directly below the spherical portion.