JPH0996045A - Holding clip device for earthquake resistance of ceiling board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the displacement, etc., of a ceiling board at the time of vibrations by forming a surface symmetric type holding clip by bending an elastic plate material and forming a head inserting section, a leg opening section, a hold-down plate section and a penetrating engaging pawl. SOLUTION: A surface symmetric type holding clip 3 for earthquake resistance is molded by bending an elastic plate material such as a stainless steel plate, a spring steel plate, etc., and a head inserting section 31 inserted and engaged to the head section 21 of a T bar 2, on which a ceiling board 1 is placed, is formed. A first leg opening section 32 is formed while being continued to the opposed two plate sections of the head inserting section 31, and a second leg opening section 33 having a large angle of leg opening is shaped while being continued to the end section of the first leg opening section 32. Hold-down plate sections 34 formed by outwards bending the end sections of the second leg opening section 33 at approximately 90 deg. and triangular penetrating engaging pawls 35, in which front ends are pointed, are formed and engaged with the ceiling board. Accordingly, the ceiling board can be held accurately at the normal place of mounting on the T bar even at the time of a severe earthquake.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seismic holding clip device for a ceiling plate, and more specifically, a seismic resistance of a ceiling plate for preventing the ceiling plate from being displaced or lifted from a T-bar during vibration such as an earthquake. Holding clip device.

[0002]

2. Description of the Related Art As a ceiling structure of a building or the like, a system ceiling of a type in which a ceiling plate is placed on a horizontal side of a T-bar stretched vertically and horizontally is widely adopted, and recently, a so-called regular type ceiling is used. The ceiling plate is prized for its beautiful appearance.

In this ceiling structure, in order to prevent the ceiling plate from floating above the T bar due to an earthquake or the like, a ceiling plate retainer clip 101 as shown in FIG. 3 is conventionally attached to an appropriate portion of the T bar. This is a generally "H" -shaped clip made of a spring plate, and is configured such that the retainer portion 101A provided at the tip of the C-shape restrains the ceiling plate 1 from rising and moving left and right.

[0004]

However, in the case of the conventional clip of this type, the holding portion 101A has a drawback that it can only suppress the lift of the ceiling plate 1 and cannot stop the left and right movements thereof. Therefore, even if it is possible to prevent the ceiling plate from rising or coming off in the event of an earthquake, it is not possible to prevent the horizontal movement of the ceiling plate. Therefore, when using a regular type ceiling plate, its appearance is shown in FIG. As shown in the example, the groove line XX of the T-bar part, which should extend beautifully in a straight line, may shift to the left and right and become uneven, significantly impairing the characteristic appearance of the system ceiling by the regular ceiling plate, and violent vibration. In the case of, there was also a drawback that the ceiling board retaining clip itself fell off as a result of being lifted by the ceiling board.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the means for solving the problems according to the first aspect of the present invention is to bend an elastic plate material to form a plane-symmetric shape as a whole. A head insertion part formed on the head plate of the T-bar on which the ceiling plate is to be placed and locked, and a first open leg part that extends following the head insertion part.
The second that extends continuously to this and has a larger opening angle
A seismic-resistant holding clip device for a ceiling plate having an open leg portion, a retainer plate portion formed at a free end of the second open leg portion, and a piercing locking claw.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, the seismic resistant holding clip 3 of the present invention will be described with reference to FIG. For example, one continuous elastic plate material such as a stainless steel plate or a spring steel plate is bent to form a plane symmetrical shape as a whole, and the bent portion is slightly smaller than the width of the head portion 21 of the T bar 2 described later. It has a wide inner width and has a U-shaped cross section, and is formed as a head insertion portion 31 that can be inserted into and closely attached to the head portion 21.

The first open leg portion 32 is formed continuously on each of two opposing plate portions of the head inserting portion 31,
This is bent so that two plate pieces facing each other of the head insertion part 31 are accurately opened to the outside in the vertical direction by 45 ° or less, preferably 10 ° to 30 °. ing. Then, on both sides of the bent base portion of the first open leg portion 32, slip-out preventing claws 32A are cut and raised toward the inside facing each other.

A second open leg 33 is provided continuously to the end of the first open leg 32. Each piece of the second open leg portion 33 is opened more than 45 ° and 90 ° or less with respect to the vertical direction, preferably 30 ° to 60 ° outwardly with respect to each piece of the first open leg portion 32. Is formed as.

In the plate piece portion at the end portion of the second open leg portion 33, the central width portion is approximately 90 ° with respect to the vertical direction.
It is formed as a pressing plate portion 34 that bends outward, and both side portions of the pressing plate portion 34 are bent substantially inwardly with respect to the pressing plate portion 34, that is, bent inward in the vertical direction, and the tips are sharpened. It is formed as a triangular piercing locking claw 35.

FIG. 1 shows how the ceiling clip 1 placed on the T-bar 2 can be held by the holding clip 3 of the present invention. First, the mounting method is to attach the head insertion portion 31 of the holding clip 3 to the head portion 2 of the T bar 2.
All you have to do is insert it from above and push it down until it stops. This one-touch operation completes the ceiling plate holding state shown in FIG. Here, the ceiling board 1 is assumed to be sound-absorbing and fire-resistant, which is made of, for example, rock wool material, and at least those which are not pierced by the locking claws 35 are excluded.

In the state shown in FIG. 1, the slip-out preventing claw 32A is T-shaped.
First of all, it should be mentioned that the bar clip 21 is caught on the lower edge of the head part 21 of the bar, so that the holding clip 3 is in a locked state in which the holding clip 3 does not come out downward as well as upward. Further, in this mounted state, the piercing locking claws 35 are attached to the ceiling plate 1.
Since the retainer plate portion 34 sticks to the upper surface of the ceiling plate 1, relative movement between the holding clip 3 and the ceiling plate 1 is completely prevented.

Both the first open leg portion 32 and the second open leg portion 33 are subjected to an external force for further expanding the open leg angle.
Elastic restoring force acts to return to the original leg angle.
Both of the open legs can be regarded as a cantilever with the bent base fixed, so the elastic restoring force depends on the amount of deflection at the end of the beam, the longitudinal elastic modulus E of the material and the section modulus I of the beam. It is proportional and inversely proportional to the cube of the span length.

In the case of the first leg portion 32, since the leg angle of the plate piece with respect to the vertical direction is 45 ° or less, the elastic restoring force of the component in the horizontal direction is larger than that in the vertical direction. This means that the first open leg portion 32 mainly acts to return the horizontal displacement deviation of the ceiling plate 1 to the normal center position shown in FIG.

Similarly, in the case of the second leg portion 33, since the leg angle of the plate piece with respect to the vertical direction is 45 ° or more, the elastic restoring force of the component in the vertical direction is larger than that in the horizontal direction. This means that the second open leg portion 33 mainly acts to return a vertical deviation such as a jump of the ceiling plate 1 to the normal mounting position shown in FIG. At this time, the retainer plate portion 34 cooperates.

Of course, since the first open leg portion 32 also has a vertical component of elastic restoring force, it also acts to prevent the ceiling plate 1 from bouncing up. Similarly, the second open leg portion 33 also acts on the ceiling plate 1 horizontally. Obviously, it also acts to restore the lateral displacement.

[0016]

As described above, according to the present invention, the mounting work is very simple, and there is a convenience in installation work that can be performed by a one-touch operation of just inserting the T-bar.
Then, even when the ceiling plate 1 is moved up and down, left and right to cause a shift in each of the vertical and horizontal directions such as in the case of a large earthquake, the first open leg portion 32 and the second open leg portion 3
3 has an effect of always stabilizing the ceiling plate 1 in the regular assembly position shown in FIG. 1, and therefore, when applied to a regular type ceiling plate, there is an advantage that the aesthetic appearance of the ceiling can be maintained at any time.

Further, at this time, since the ceiling plate 1 is elastically pressed down by both the first and second open legs, the external force at the time of seismic vibration is absorbed by the elastic deformation, and the ceiling plate 1 and the T bar are absorbed. There is also an advantage that there is no danger of damaging the ceiling components such as 2. Further, there is no possibility that the retaining clip 3 itself will fall out of the T-bar 2 due to the slip-out preventing claw 32A even if any violent earthquake occurs, and the situation in which the above-described effects are lost is prevented.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a state in which a ceiling plate is held by a holding clip device of the present invention.

FIG. 2 is a perspective view of the retaining clip of the present invention.

FIG. 3 is a perspective view showing a conventional ceiling board holding clip.

FIG. 4 is a perspective view showing an appearance of a regular type ceiling when the ceiling is looked up from the room.

[Explanation of symbols]

 1 Ceiling Plate 2 T Bar 21 Head Part 22 Horizontal Plate Part 3 Seismic Ceiling Plate Retaining Clip 31 Head Insertion Part 32 First Open Leg Part 32A Fallout Prevention Claw 33 Second Open Leg Part 34 Stab Plate Part 35 Stab Locking Claw

Claims (1)

[Claims] 1. An elastic plate member is bent to be formed in a plane-symmetrical shape as a whole, and a ceiling plate (1) is inserted and locked in a head portion (21) of a T-bar (2) to be placed. Head insertion part (31) and the head insertion part (31)
A first open leg portion (32) extending continuously from the first open leg portion and a second open leg portion (33) extending continuously from the first open leg portion and having a larger open leg angle.
A seismic retaining clip device for a ceiling plate, which includes: a holding plate portion (34) formed at a free end of the second open leg portion (33) and a piercing locking claw (35).