JP3511589B2 - Seismic-resistant infant desk - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seismic-resistant infant desk suitable for use in places such as nursery schools and kindergartens where infants gather.

[0002]

2. Description of the Related Art Conventionally, in a nursery school or kindergarten, when an earthquake is encountered during childcare or class, it is explained as a safety measure that an infant first evacuates under a used infant desk. This is also practiced during evacuation drills at the time of the initial movement assuming an earthquake.

[0003]

In this case, the infant desk must be sufficiently strong so as not to be easily crushed, and the safety of the infant evacuated under the infant desk must be ensured. Must also be carefully considered.

An object of the present invention is to have a structure which is simple and has such a strength that a heavy object falls down or does not easily collapse even if it falls down during an earthquake, and has been evacuated under an infant desk. It is an object of the present invention to provide an earthquake-resistant infant desk that can ensure the safety of the body and life of school children.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides a metal reinforcing plate provided with a number of punch holes between an upper substrate plate and a lower decorative plate which are overlaid on each other. And a plurality of legs that are foldably attached below the top plate, and one or more gripping bars that are also foldably attached below the substantially central portion of the top plate. The leg is slidably biased in one direction to lock the leg in an open state.
A first locking means having a lock pin which is provided, a second locking means having a vertically movable stopper pin for locking the gripping rod in an open state, and a member for elastically holding the gripping rod in a folded state. A third locking means comprising a stop member , and each leg has an upper radius.
A locking hole for fitting the lock pin in the direction,
Each leg is also attached via a mounting piece projecting in the direction of folding.
To the support piece attached to the top plate in the same direction
A pair of legs to be folded are connected by a connecting member, and the first
Take the locking means on one of the legs that are folded in the same direction
It is characterized by having attached .

The present invention also provides a metal pipe frame,
A top plate comprising a metal reinforcing plate provided with a large number of punch holes between an upper substrate plate and a lower decorative plate which are attached to each other and which are attached to an upper portion of the frame, and And a plurality of legs that are foldably attached to the lower side of the top plate, and one or more gripping bars that are also foldably attached to the lower side of the substantially central portion of the top plate. A first locking means having a lock pin for locking the gripper in an open state, a second lock means having a vertically movable stopper pin for locking the gripper in an open state, and folding the gripper. provided with a third locking means comprising a locking member elastically held in a state, the respective leg thereon radius direction
A locking hole into which the lock pin is inserted,
The part is also fronted through a mounting piece protruding in the direction of folding.
Attach to the support piece attached to the tabletop and fold in the same direction
The pair of legs to be folded are connected by a connecting member, and the first
Mounting means on one of the legs that can be folded in the same direction
Characterized in that was.

[0007] The present invention further provides, under the top plate,
When not in use, fold the legs and grip bars to overlap the desks
To provide a space between the desks when they are overlapped
A plurality of bearing pins are attached .

[0008] In any of the above cases, a roller or a caster for moving, which contacts the ground when the desk is tilted, can be attached to a part of the leg.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention, in which a reference symbol 1 is a top plate, and this top plate 1 has a substrate plate 1a and a substrate plate 1a as shown in FIG. A large number of punch holes 2a, 2a,.
A punch plate 2 made of metal such as steel or stainless steel plate provided with a decorative plate 3 adhered to the lower side of the punch plate 2, and an edge member 1
One top plate 1 is formed by bonding b and 1b.

[0010] In the vicinity of each corner on the lower surface of the top plate 1, as shown in FIG.
Are fixed by a plurality of screws 5, and a total of four legs 6 are attached to each of the mounting plates 4 so as to be foldable in the longitudinal direction of the top plate 1.
As shown in FIG. 5, each of the legs 6 has a pair of support pieces 7, each of which is provided with a mounting piece 6 a protruding in a radial direction at an upper end thereof and is attached to each mounting plate 4. 7 is mounted so as to be rotatable in one direction (folding direction) via hinge pins 8. The pair of legs 6 in the short direction are connected by connecting members 9, 9 so that they can be folded together.

Adjustment seats 6b for adjusting the height are screwed to the lower ends of the legs 6. The adjustment seat 6b may be a simple rubber seat fitted to the lower end of the leg 6. At the upper end of one of the pair of legs 6, that is, one that is aligned in the longitudinal direction, the legs 6 are locked in an open state , particularly as shown in FIG.
First locking means A, A are attached. That is, the locking hole 6c is provided at a position opposite to the mounting piece 6a,
A lock pin 10 protrudes from a case 11 fixed to the mounting plate 4 so as to fit into the locking hole 6c. In normal times, the lock pin 10 fits into the locking hole 6c and a pair of legs 6, 6,. Is prevented from folding naturally. The lock pin 10 is urged to slide in one direction by a compression spring 12 inside the case 11. The lock pin 10 has a knob 10
The knob 10a protrudes to the outside through a long hole 11a provided in the case 11, and a lock pin
By pulling back 10 into case 11 against the elasticity of compression spring 12, its tip can be detached from locking hole 6c.

Next, the central portion in the longitudinal direction of the top plate 1 and the top plate 1
At the location located between the two end portions and at the substantially central portion in the short direction, particularly, as shown in FIG. A plurality of screws 14, 14,... Are attached so as to be shifted, and a pair of the mounting plates 13, 13, which are opposed to each other at a predetermined interval, particularly as shown in FIG. 4, FIG. 6, and FIG. Are mounted at predetermined intervals. Grasping bars 16, 16 are attached to the support members 15, 15 via hinge pins 17, 17 so as to be rotatable in one direction (folding direction). The gripping rods 16 and 16 are second locking means B and
B is configured to maintain the open state . Describing one of the second locking means B, B , the pivotal support position of the gripping rods 16, 16 by the hinge pins 17, 17 is slightly shifted from the center thereof. One side of each of the support members 15 is vertically elongated
a, 15a are provided, and stopper pins 18, 18 are inserted into the elongated holes 15a, 15a so as to be vertically movable. The stopper pins 18 are provided with flanges 18a at one end thereof, and nuts 19 at the other end are screwed to prevent the stopper pins 18 from coming out of the elongated holes 15a. Therefore, this gripping rod 16,1
Numeral 6 denotes a stopper pin 18, which is dropped by its own weight to the lower end of the long hole 15a, in a state of being suspended downward from the support members 15, 15, and is naturally rotated in the folding direction around the hinge pin 17, 17 as a fulcrum. It does not move. In addition, by shifting the pivotal support position by the hinge pins 17 in the opposite direction, the upper end thereof abuts against the mounting plates 13 and 13 and does not rotate, and the hanging state is stably maintained. can do. Adjustment seats 16a, 16a for height adjustment are screwed to lower ends of the gripping rods 16, 16, respectively. The adjustment seats 16a, 16a may be rubber seats fitted to the lower ends of the grip bars 16, 16.

The support member 1 for each of the mounting plates 13, 13
Next to 5 and 15 are folded gripping rods 16 and 16
Locking means comprising locking members 20, 20 for elastically retaining
C, C , as shown in FIG.
0a, 20a. This third b
The locking members 20, 20 of the locking means C, C are elastic members, and are caught by their catch portions 20b, 20b.
6 and 16, and retains the holding state with its own elasticity.

On the other hand, from each of the mounting plates 4, 4,... For the legs, bearing pins 21 , 21,... To which rubber bushes 21a, 21a. When a plurality of desks are overlapped by folding the holding bars 16, 16 , a space is provided between the desks to be overlapped with each other so that the legs 6 and the holding bars 16 do not hit the top plate 1. Have been.

Therefore, as shown in FIGS. 1 and 3,
When the leg portion 6 below the top board 1 to open leg droop, as shown in FIGS. 5 and 6 to 7, each leg 6 is in contact with its upper end to the lower surface of the mounting plate 4, and One of the pair in the short direction is inserted into the locking hole 6c by the first locking means A,
Since the lock pins 10 and 10 of A are fitted , the lock pins 10 and 10 are naturally locked so as not to bend around the hinge pin 8 as a fulcrum. As shown in FIG. 1 and FIG. 3, the grasping rods 16
When the legs are suspended , especially as shown in FIGS. 6 and 7,
The upper end thereof abuts against the lower surface of the mounting plate 13, and as described above , each stopper pin 1 of the second locking means B, B
8, 18 and a hinge pin 17 for supporting the gripping rod 16
Due to the eccentric support of the gripping rod 16, the hinge pin 17 does not bend naturally around the fulcrum. FIGS. 1 and 3 show this state. The infant desk 23 is used in this state, but when an earthquake is encountered during use, the infants escape under the top plate 1 as shown in FIG. With this arrangement, it is possible to protect yourself from falling objects overhead without being thrown out of the infant desk 23. Since the top plate 1 has the reinforcing plate 2 sealed therein, it can be used for heavy falling objects. However, the body and life of the evacuated infants under the top plate 1 can be protected without being easily destroyed.

Of the four legs 16 of each pair, the leg is positioned on one side in the short direction, but the mounting position is set slightly upward on the lower end so that when the infant desk 23 is tilted, it touches the ground. Rollers 22, 22 are mounted. 22a, 22a
Is a cover for covering the rollers 22,22.

Accordingly, in a nursery school or a kindergarten, when an earthquake occurs during nursery in a nursery room, a child or a nurse mother escapes under the infant desk 23, and as shown in FIG. Clinging to 16 can prevent the body from jumping out from under the infant desk 23 even under severe shaking, thereby ensuring the safety of the body and life against falling objects. Also, in the event of an earthquake in which the building collapses and ceilings and beams fall, the infant desk can withstand heavy falling objects without crushing, and the children and nurses who have evacuated under the infant desk will be able to withstand the fall. It can protect the body and life.

In another embodiment, a substantially rectangular frame made of a metal pipe may be attached to the lower surface of the top plate. When implemented in this manner, there is an advantage that the crushing strength of the top plate is further increased.

Further, it is also possible to use a top plate not enclosing a reinforcing plate, mount a metal pipe frame on the lower surface thereof, and stretch a reinforcing plate provided with a large number of punch holes in the frame. The reinforcing plate may be formed as a single piece and may be stretched over the upper surface of the frame 25.

[0020]

The present invention is configured as described above.
The following effects can be obtained.

According to the first aspect, the top plate is configured.
Upper substrate plate and lower decorative plate
A metal reinforcing plate that can increase the crushing strength is sandwiched between the two, so when the legs and gripping bars are folded and multiple child desks are overlapped, the reinforcing plate is exposed on the back side of the top plate The effect of not being unsightly, without having to evacuate under the tabletop of the infant desk in the event of an earthquake and clinging to the stick, the body may be thrown out of the tabletop Infants evacuated under the tabletop without being easily crushed even by heavy falling objects by protecting the body from falling objects and reinforcing the top plate with a reinforcing plate Can protect your life and body. In addition, the legs have a lock pin
With the first locking means having
Is click, it wants out of the locked state by shaking during an earthquake
Not to be evacuated and to catch and evacuate during an earthquake
The gripper can be moved by the movable stopper pin.
And the locked state will not come off.
And the folded state when not in use, the third lock
It is elastically held easily by the locking means.

According to a second aspect of the present invention, the first and second aspects are provided.
With the same effect, the crushing strength of the top plate is further increased, so that the body and life of infants evacuated to the lower part of the top plate can be further secured.

According to the third aspect of the present invention, when not in use,
When the desks are stacked on top of each other,
There is a gap between the table top and the table top.
The top plate is not scratched because it does not come into contact with the legs or the grip bar.
There is an effect that there is no fear of attaching.

According to the fourth aspect of the invention, when the infant desk is moved, there is an advantage that if the infant desk is tilted, the rollers contact the floor and can be easily moved.

[Brief description of the drawings]

FIG. 1 is a front view of an earthquake-resistant infant desk according to the present invention.

FIG. 2 is an exploded perspective view of a top plate of the seismic infant desk shown in FIG.

FIG. 3 is a right side view of the earthquake-resistant infant desk shown in FIG. 1;

FIG. 4 is a bottom view of the seismic infant desk shown in FIG. 1;

FIG. 5 is an enlarged front sectional view of a portion where the leg is attached to the top plate.

FIG. 6 is an enlarged front sectional view of a portion where the gripping bar is attached to the top plate.

FIG. 7 is an enlarged left side sectional view of a portion where the gripping bar is attached to the top plate.

FIG. 8 is an explanatory view showing a state when the child moves to the infant desk.

[Explanation of symbols]

A First locking means B Second locking means C Third locking means 1 Top plate 1a Substrate plate 1b Edge member 2 Reinforcement plate 2a Punch hole 3 Decorative plate 4 Mounting plate 6 Leg 13 Mounting plate 16 Clamping rod 20b Catch 21 Support pin

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-11-32874 (JP, A) JP-A-10-137041 (JP, A) JP-A-61-237609 (JP, A) 14001 (JP, U) Jigyo 37-29875 (JP, Y1) Jigyo 30509 (Taisho 15) (JP, Y1 T) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47B 3 / 08 A47B 13/08 A47B 96/18-96/20

Claims (4)

(57) [Claims] 1. A top plate comprising a metal reinforcing plate provided with a large number of punched holes between an upper substrate plate and a lower decorative plate which are overlapped with each other, and folded under the top plate. And a plurality of gripping rods which are also foldably attached to a lower side of a substantially central portion of the top plate, wherein the legs are attached to the legs in an open state. A first locking means having a locking pin slidably biased in one direction for locking, and a second lock having a vertically movable stopper pin for locking the gripping rod in an opened state. and means, provided with a third locking means comprising a locking member elastically held in a folded state the grab bar, the respective leg, the upper radial direction
A locking hole for fitting the lock pin in
The legs are also mounted via mounting pieces that protrude in the direction
Attach to the support piece attached to the top plate and fold in the same direction
The pair of legs to be folded are connected by a connecting member, and the first
Mounting means on one of the legs that can be folded in the same direction
A quake-resistant infant desk, characterized by being radiated. 2. A metal pipe having a number of punched holes provided between a metal pipe frame and an upper substrate plate and a lower decorative plate which are attached to the upper portion of the frame and overlap each other. A top plate sandwiching a reinforcing plate,
It comprises a plurality of legs that are foldably attached to the lower side of the top plate, and one or more gripping bars that are also foldably attached to the lower side of a substantially central portion of the top plate. First locking means having a lock pin for locking the leg in the open state, second locking means having a vertically movable stopper pin for locking the locking rod in the open state, provided a third locking means comprising a locking member elastically held in a folded state the rod
And each of the legs is locked in the upper radial direction.
It has a locking hole for inserting a pin, and each leg is folded again.
Take it to the top plate via the mounting piece protruding in the folding direction
A pair that is attached to the attached support piece and folded in the same direction
Are connected by a connecting member, and the first locking means is the same.
A seismic infant desk, characterized in that it is attached to one of the legs that folds in the direction . 3. A plurality of support pins for providing a space between the desk and the desk when the legs and the gripping bar are folded and the desks are stacked when not in use are provided below the top plate. 3. A device according to claim 1, wherein the device is attached.
An earthquake-resistant infant desk according to any of the above. 4. A moving roller or a caster, which is attached to all or a part of the leg portion when the desk is tilted, and contacts the ground when the desk is tilted. The seismic infant desk as described in.