JP2569594Y2 - Flap door with damper - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flap door with a damper, in which an opened door can be stored on a top plate of a door mounting body such as a cabinet.

[0002]

2. Description of the Related Art Conventionally, there has been known a flap door in which the door is located inside a door mounting body and is stored at a lower rear side of a top plate.

[0003] However, in the above-mentioned doors, a pivoting portion for opening and closing the door by rotating the door in a vertical direction with respect to the door mounting body, and pushing and pulling out the door to store the door. In addition, a slide mechanism including a slide rail for pulling out is indispensable, so that the assembling work of the door with respect to the door mounting body is very troublesome, time-consuming, and productivity is poor.

[0004] Further, since the pivot portion and the slide mechanism are internally provided with respect to the door and its mounting body, it is difficult to adjust the position of the door after the door is mounted, and further, the door is internally stored. from that, there is also a flame point of storage space of the door mounting body part is narrowed.

Therefore, a flap door with a damper has been proposed by the present applicant to solve the above-mentioned problems of the flap door. In this case, the door that has been opened without being removed from the opening of the door mounting body can be stored as it is on the top plate of the door mounting body, thereby facilitating the assembly of the door to the door mounting body, The storage space inside the door mounting body is widened so that the door and its attachment mechanism do not hinder the loading and unloading of objects to be stored.On the other hand, when the door is closed, the door is pulled forward, and the damper reduces the door load torque. The cushioning action, that is, a braking force is exerted on the door, so that a gentle closing operation can be obtained without impact.

[0006]

However, even with the above-described flap door with a damper, if the hand is separated from the door after opening the door horizontally by rotating the door upward,
Due to the door load torque, the door rotates down and is reluctantly closed, or when the door is closed, the door is moved from the stored state placed on the top plate of the door mounting body to the front end of the door. When the door is pulled out to the near side, if the hand is separated at a position where the door is pulled out more than 1/2 of the door, the door load torque causes the door to rotate down and tilt forward and down. As a result, the door slides out suddenly toward the lower front part by sliding, and thus may be dangerous especially in a large and heavy door.

The present invention has been made in view of the above-mentioned problems of the prior art. In a flap door with a damper, a door that has been opened and closed in a horizontal state by rotation from a closed state to an open state. When the door is opened, the door is locked so that the door is not inadvertently closed even if the user releases his / her hand. When the door is pulled out forward and closed from the stored state, even if the door may be separated during the drawer, do not inadvertently pop out diagonally forward by rotating down. The goal is to eliminate the danger.

[0008]

According to the present invention, in order to achieve the above object, a recess is provided at a front edge of a top plate of a door mounting body such as a cabinet, and a damper is provided in a bracket fitted to the recess. It is housed and its inner cylinder is fixed.On the other hand, on the back of the door, there is a slide rail in which a long outer rail and a short inner rail are slidably engaged via a ball retainer. longer juxtaposed rails vertically, by the door rotation and slide, respectively upper
The resistance of the damper does not occur in the direction
The braking force against the door load torque of the damper is exerted
In a flap door with a damper, wherein the inner rail is fixed to an outer cylinder of a damper, so that the flap door can be opened and closed and can be stored on the top surface of the top plate of the door mounting body, a recess in which a damper of the bracket is stored. in the bottom plate of the place, a recess which opens into the recess, each provided with a long elongated hole in the longitudinal direction of the side plates of the left and right, the <br/> lock Kupi down by inserting the ends into both said slots before and after Erected slidably in the direction, biased forward by a spring housed in the recess,
On the other hand, in the outer peripheral surface of the outer cylinder of the damper, so as lockable in the horizontal state the door is opened upward, with damper flap door comprising the lock Kupi down is provided Kakarihama freely locking grooves It is intended to provide.

[0009]

With the lower end of the door closed in the suspended state, when the door is pulled up, the lifting force is applied to the outer cylinder of the damper as a rotational force in the door opening direction via the slide rail. Therefore, the outer cylinder is rotated with respect to the inner cylinder of the damper, but at this time, the resistance by the damper is not generated, and therefore, the door is slightly rotated,
It is opened horizontally.

When the door is opened as described above, the outer cylinder slides on the outer peripheral surface of the lock pin which is urged toward the outer cylinder by the force of a spring. When the door is opened in a horizontal state, the lock pin is engaged with the lock groove recessed in the surface of the outer cylinder by the biasing force of the spring force. As a result, the door is locked in the open position in the horizontal state, so that the door is held in the open state even when the hand is released from the door.

Then, when the door is pushed inward, the outer rail slides with respect to the inner rail fixed to the outer cylinder of the damper.
It is pushed in along the upper surface of the top plate of the door mounting body, and is in a stored state placed on the top plate.

From the above storage state, hold the front end of the door,
If this is pulled out to the front and the above-mentioned horizontal state is reached, when the front end of the door is pushed down, the pushing force is applied to the outer cylinder of the damper via the slide rail as a rotational force in the opposite direction to the above-described opening. Therefore, the outer cylinder is rotated with respect to the inner cylinder of the damper. Thus, after the fitting engagement between the Rokkupi down and the locking groove is locked state is released off, if so releasing the hand from the door, but so that the said door is rotated downward by the door load torque, this time As a result, the outer cylinder is rotated in the opposite direction to the opening of the damper with respect to the inner periphery of the damper, whereby the damper exerts a braking force against the door load torque, and the door rotates slowly and closes. State.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. Here, FIG. 1 is a vertical cross-sectional view of a closed state in which an opening of the door mounting body is closed by a door, and FIG. 2 is a vertical cross-sectional view of an open state in which the door is stored on a top plate in the door mounting body. As shown in the drawing, a door mounting body 1 such as a cabinet has an opening 6 at the front by a top plate 2, a bottom plate 3, left and right side plates 4, and a back plate 5.
It is formed in a box shape. As shown in FIGS. 3 and 4, on the top plate 2 of the door mounting body 1, recessed portions 7 are cut out on both left and right sides of a front edge 2 a thereof. A bracket 9 having a substantially U-shaped flat surface with an opening 8a at the front surface is screwed into
It is fixed by.

In the recess 8b of the bracket 8, movable shafts 11c, 11c projecting symmetrically from the inner cylinder 11a of the damper 11 on bearings 10, 10 opposed to the left and right side plates 8c, 8c. By being fixed, the outer cylinder 11b
The inner cylinder 11a is fixed so as to be rotatable.

From the outer cylinder 11b, the unit body 11
1 and 3, a lock groove 12 into which a lock pin 15 to be described later engages when the door is opened is formed on the outer peripheral surface of the outer cylinder 11b. The cylinder 11b is long and recessed in the axial direction.

In the bottom plate 8d of the recess 8b of the bracket 8, a recess 13 opening into the recess 8b is formed to be long in the axial direction of the damper 11, and the left and right sides of the recess 13 are formed. Left and right side plates 8 of the recess 8b
Elongated holes 14, 14 are provided opposite to each other at c and 8 c in the front-rear direction.

A lock pin 15 is slidably mounted in the opening of the recess 13 so that the lock pin 15 is slidable in the front-rear direction in the diameter direction by inserting both ends into the long holes 14, 14. On the other hand, the concave portion 13 has a curved 2
The leaf springs 16, 16 are housed in a state where the leaf springs 16, 16 abut against each other so as to symmetrically bulge outward, and the resilient force of the leaf springs 16, 16 makes the lock pin 1.
5 is the front, that is, the outer cylinder 11 of the damper 11 described above.
b is urged against the outer peripheral surface in the direction in which it is pressed.
The lock groove 12 of the outer cylinder 11b and the lock pin 15 of the bracket 8 are in a state where they are not engaged when the door is closed, which will be described later. When the door is opened, they are positioned so as to be engaged with each other. I have.

As described above, the damper 11 uses a viscous fluid such as a polymer viscous fluid such as polyisobutylene and a spring and a spring so as to utilize the viscous shear resistance and the spring force, respectively. Due to the resistance force obtained by the shear resistance, the outer cylinder 11
When b rotates in the door closing direction, the braking force is exerted, and when the outer cylinder 11b rotates in the door opening direction, the outer cylinder 11b is lightly rotated by the action of the spring described above. Just use it.

On the other hand, the door 17 is formed in such a size that it can be externally attached to the opening 6 of the door mounting body 1. The outer rail 1 of the slide rail 18
9 are juxtaposed vertically long. The slide rail 18 is, as clearly shown in FIG.
The inner rail 22 is engaged with the inner rail 22 via a ball retainer 21 held in two rows so as to be freely rotatable and slidable in the longitudinal direction. As shown in FIGS. 1 and 2, the outer rail 19 is formed to be almost as long as the height of the door 17, while the inner rail 22 is formed to be short so that a large sliding stroke of the door 17 can be obtained. ing.

The inner rail 22 of the slide rail 18 and the unit main body 11d to which the outer cylinder 11b of the damper 11 is fixed are fixed with screws (not shown) as shown in FIGS. 1 and 2. Like, door 17
Are assembled so that the opening 6 of the door mounting body 1 can be moved up and down in the vertical direction, and can be opened and closed by rotating about the movable shaft 11c.

On the rear surface of the outer rail 19 of the slide rail 18, a locking and guiding plate 23 is provided at the upper end thereof at a substantially right angle to the rear side.
In the closed state shown by the solid line in FIG. 1, the locking and guide plate 23 is locked by the damper 11 and the outer rail 19 is closed.
And the inner rail 22 is prevented from being disengaged, so that the door 17 is prevented from dropping, and in the open state shown in FIG.
It slides along the upper surface of.

The damper 11 is controlled only when the door 17 in the horizontally opened state as shown by the two-dot chain line in FIG. Power is exerted, and when rotating in the opposite direction, that is, arrow b
When the door is opened, which rotates upward in the direction, the door 17 is set to be able to rotate lightly by the spring force. However, only the braking force at the time of closing the door may be exerted without using a spring.

Further, as shown in FIG. 2, the locking and guiding plate 23 pulls the door 17 stored on the top plate 2 at a position shown by a two-dot chain line in FIG. And the outer peripheral surface of the outer cylinder 11b of the damper 11, thereby preventing the door 17 from slipping forward.

Further, as shown in FIG. 5, when the door 17 is closed on the outer peripheral surface of the outer cylinder 11b of the damper 11, when the door 17 is closed, If the lock groove 24 into which the lock member 15 can be engaged is formed so as to be long in the axial direction of the damper 11,
When the door is closed, the lock pin 15 is engaged with the lock groove 24, whereby the locked state of the door can also be obtained.

[0025]

As described above, the present invention provides a damper and a slide rail so that a door can be freely opened and closed by rotation with respect to a door mounting body, and can be slid by pushing and pulling out the door. When the door is opened, it can be placed on the top of the door mounting body by pushing it in after opening, and at the time of closing, the damping force by the damper acts on the door load torque. In the thing which was made to close a door loosely, it was provided in the bracket in the lock groove provided in the outer cylinder peripheral surface of the damper,
The lock pin biased by the spring force is engaged with the resilient force so that the door can be locked in the opened horizontal state. Therefore, after the door is opened, the top plate of the door mounting body is opened. When placed on the upper side, there is no need to support the door load torque, and the push operation is sufficient. In addition, when the door is pulled out and closed, even if the hand is separated during the pulling out, the door is not rotated down in the closing direction. Sudden jumping out is prevented, and after being pulled out horizontally, it will not be closed unless a force is applied in the closing direction, so unintentional closing will also be prevented, and this kind of door will be opened Closing can be performed with good operability and safely.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view showing a closed state of a flap door with a damper according to an embodiment of the present invention.

FIG. 2 is a vertical sectional side view showing a storage state of a door opened according to the embodiment of FIG. 1;

FIG. 3 is a partial plan view showing a pivoted portion of the door in a closed state according to the embodiment.

FIG. 4 is a sectional view taken along line AA ′ in FIG. 1;

FIG. 5 is a partial longitudinal sectional side view showing a door closed state according to another embodiment of the flap door with a damper according to the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 door mounting body 2 top plate 7 concave notch 8 bracket 8 a concave 8 d bottom plate 11 damper 11 a inner cylinder 11 b outer cylinder 12 locking groove 13 concave section 14 long hole 15 lock pin 16 spring 17 door 18 slide rail 19 outer rail 21 Ball retainer 22 Inner rail

Claims (1)

(57) [Scope of request for utility model registration] An indentation is provided at a front edge of a top plate of a door mounting body such as a cabinet or the like, a damper is housed in a bracket fitted to the notch, and an inner cylinder thereof is fixedly mounted. On the back side, there is a slide rail in which a long outer rail and a short inner rail are slidably engaged via a ball retainer, and the outer rails are arranged long in the vertical direction, and the door rotates and slides. By each
The resistance of the damper does not occur in the direction
The braking force against the door load torque of the damper is exerted
In a flap door with a damper, wherein the inner rail is fixed to an outer cylinder of a damper, so that the flap door can be opened and closed and can be stored on the top surface of the top plate of the door mounting body, a recess in which a damper of the bracket is stored. in the bottom plate of the place, a recess which opens into the recess, each provided with a long elongated hole in the longitudinal direction of the side plates of the left and right, the <br/> lock Kupi down by inserting the ends into both said slots before and after Erected slidably in the direction, biased forward by a spring housed in the recess,
On the other hand, in the outer peripheral surface of the outer cylinder of the damper, so as lockable in the horizontal state the door is opened upward, with damper flap door comprising the lock Kupi down is provided Kakarihama freely locking grooves .