JPH0749705B2 - Underfloor storage lid opening and closing device - Google Patents

Description

The present invention relates to a lid opening / closing device for an underfloor storage installed in a house or the like.

[Prior art and problems]

An underfloor storage is known in which an opening-and-closing lid is attached to an opening provided on the floor of a kitchen so that an item can be stored in a storage case installed below the opening.

By the way, in this type of underfloor storage, since the lid is attached to the floor, opening and closing operations are troublesome, and the weight is relatively large, so it is not easy for housewives to open and close, and moreover, it is not possible to directly To open and close with the handle on the floor,
There are problems such as being unfavorable in terms of hygiene, and there has recently been proposed a lid opening / closing device capable of opening and closing the lid by power.

However, the lid in the conventional lid opening / closing device is, for example,
64-24239 gazette, actual development Sho 63-165035 gazette, actual development flat 1-6
As disclosed in Japanese Patent No. 7238 or the like, most of them are connected to one side of the opening by a hinge portion and are opened and closed with the other side as a free end and the hinge portion as a fulcrum. Therefore, one lid as a whole (including a folding type) is raised and lowered, and moreover, the hinge portion side is raised and lowered, which requires a large driving force and consumes a large amount of power.
There is a drawback that the hinge is required to have mechanical strength, which is extremely disadvantageous in terms of durability and reliability.

It is an object of the present invention to provide a lid opening / closing device for an underfloor storage that solves the problems existing in the prior art.

[Means for Solving the Problems]

When the present invention configures the lid opening / closing device 1 for an underfloor storage that opens and closes the lid L attached to the opening S of the floor F, in particular, a pair of lid halves La and Lb that are divided into two halves, It is characterized in that it is provided corresponding to Lb ... And is provided with an interlocking mechanism for transmitting the displacement of the drive unit to each lid half. In this case, the interlocking mechanism corresponds to each lid half La, Lb ... And is provided with X arm mechanisms 2a ..., 2b.
The upper ends of the first arms 4a ..., 4b ... of the X arm mechanisms 2a ..., 2b ... are rotatably coupled to the lower surfaces of La, Lb, and the upper ends of the second arms 5a. To the floor F side, the lower ends of the second arms 5a ..., 5b ... Of the respective X arm mechanisms 2a ..., 2b ... are rotatably coupled to the floor F side, and the first arms 4a. The lower end of the ... Is engaged with the floor surface in a constant displaceable manner, and a drive mechanism 6 for displacing the X arm mechanisms 2a. Further, the drive mechanism 6 ... is an elevating lever 7 ...
, And a pair of rotating levers 8a, 8b, one end of which is rotatably coupled to the floor F side at the center position of the opening S, and the other end of which is engaged with both sides of the elevating levers 7 so as to be displaceable in a fixed manner. , And a pair of link levers 9a ..., 9b for connecting the X-arm mechanisms 2a ..
Compose with ... Further, the turning levers 8a ..., 8b ... Are formed in an L shape, the position of the bent portion is engaged with the elevating lever 7 ..., and the other end is connected to the link levers 9a. Lever 9a ..., 9b ... are X-arm mechanism 2a
,, 2b are connected to rotation shafts 3a, 3b.

[Action]

According to the lid opening / closing device 1 for the underfloor storage according to the present invention, the lid L
Is composed of a pair of lid halves La and Lb which are divided into two parts, and the lid halves La and Lb are opened and closed by the displacement of the corresponding X arm mechanisms 2a, 2b. At the time of opening / closing, the raising / lowering levers 7 ... Move in parallel in the vertical direction by the operation of the raising / lowering drive unit in the drive mechanism 6, and accordingly, the pair of rotating levers 8a. The end side moves up and down. The up-and-down displacement of the rotary levers 8a ..., 8b ... Is transmitted to the rotary shafts 3a ..., 3b ... of the respective X arm mechanisms 2a ..., 2b ... via the link levers 9a. 3b ... is displaced along a predetermined locus. Therefore, each X arm mechanism 2a ..., 2b
... is displaced, and the lid halves La and Lb are opened and closed.

〔Example〕

Next, preferred embodiments according to the present invention will be described in detail with reference to the drawings.

Usually, the underfloor storage A is installed on the floor F of the kitchen in the house. An opening S is provided on the floor F, and a lid L is provided on the opening S.
And a lid opening / closing device 1 for opening and closing the lid L.

Next, the configuration of the lid opening / closing device 1 will be described with reference to FIGS. 1 to 3.

First, the lid L is divided into a pair of lid halves La that are bisected into the same size.
The lower half of each lid half La and Lb is supported by the X arm mechanisms 2a ... 2b. Both sides (front and back direction of the drawing) of one lid half La are supported by a pair of symmetrically arranged X arm mechanisms 2a. As shown in FIG. 1, one of the X arm mechanisms 2a (the same applies to the other) is configured by rotatably connecting an intermediate portion between the first arm 4a and the second arm 5a by a rotation shaft 3a. The bracket 11a provided on the lower surface of the lid half La is rotatably coupled to the upper end of the first arm 4a, and the bracket 13a provided on the lower surface of the lid half La has a slot 12a parallel to the back surface direction. The upper end of the second arm 5a is engaged. As a result, a fixed displacement of the upper end of the second arm 5a is allowed in the lid surface direction. On the other hand, the lower end of the second arm 5a is rotatably coupled to the bracket 14a provided on the floor F side, and the first arm is attached to the bracket 16a provided on the floor F side and having a long hole 15a parallel to the lid surface direction. Engage the lower end of 4a. As a result, the lower end of the first arm 4a is allowed to have a constant displacement in the floor surface direction of the floor F. The X arm mechanism 2b on the lid half Lb side has the same configuration as the X arm mechanism 2a on the lid half La side, 3b ... is the rotation axis, 4b ... is the first arm, and 5b ... is the first arm. Two arms are shown.

On the other hand, 6 are a pair of drive mechanisms symmetrically arranged on both sides (front and back direction of the drawing) of the lid half La (Lb). One of these drive mechanisms 6 (same for the other) has a long hole 21 on each lid half La and Lb side.
An elevating lever 7 having a and 21b is provided. The elevating lever 7 is guided by a guide rail (not shown),
It is moved up and down in parallel by an elevator drive unit (not shown). Further, a rotating shaft 22 is provided on the floor F side at the center position of the opening S, and rotatably supports one end of a pair of L-shaped rotating levers 8a and 8b. Engaging pins 23a and 23b are provided at the positions of the bent portions of the rotating levers 8a and 8b, and engage with the long holes 21a and 21b of the elevating lever 7. As a result, the other ends of the rotating levers 8a and 8b are engaged with both sides of the elevating lever 7 and a certain displacement is allowed. Further, the other ends of the rotary levers 8a and 8b and the rotary shafts 3a and 3b of the X arm mechanisms 2a and 2b are rotatably connected by link levers 9a and 9b, respectively.

An elevator drive unit (not shown) for raising and lowering the elevator levers 7 also serves as an elevator drive unit for raising and lowering the storage case C indicated by a virtual line.

Next, the opening / closing operation of the lid opening / closing device 1 including the raising / lowering operation of the storage case C will be described according to the flowchart of FIG. 4 with reference to FIGS. 1 to 3.

FIG. 2 shows a fully closed state. In this state, the lifting lever 7 ...
Has descended to the lower limit position, and the lid halves La and Lb are aligned horizontally to close the opening S. The storage case C is a half lid.
It is located below La and Lb.

Now, if an open button (not shown) is turned on, the elevating drive unit operates in the ascending direction (steps 31, 32), and the elevating levers 7 ... And the storage case C both start ascending (step 33). The elevating levers 7 are moved upward to raise the other ends (engagement pins 23a ..., 23b ...) of the drive levers 8a ..., 8b. Further, the X-arm mechanisms 2a. , 2b ... are displaced upward. Rotating shafts 3a ..., 3b
The displacement locus of is a curve determined by the X arm mechanisms 2a, 2b, and the lid halves La, Lb are displaced in the opening direction shown in FIG.

Then, as shown in FIG. 1, when the lift levers 7 reach the upper limit position, the lid halves La and Lb stand up on both ends of the opening S, and the opening S is completely opened. Becomes

When the lift levers 7 reach the upper limit position, the clutch for the lift levers 7 ... in the lift drive unit is disengaged, the lift operation of the lift levers 7 stops, and the lid halves La, Lb.
Is held in the fully open state. However, the storage case C continues to be further lifted by the lifting operation of the lifting drive unit (steps 34, 35, 36).

When the storage case C reaches the raised position shown in FIG. 1, it is detected by a limit switch or the like to stop the operation of the lifting drive unit (steps 37, 38). As a result, it is possible to take in and out the object with respect to the storage case C.

The storage case C is stored below the floor F, and the lid half L
To close a and Lb, a close button (not shown) may be turned on. As a result, the elevating and lowering drive unit operates in the descending direction, performs the operation completely opposite to the ascending operation, and returns to the fully closed state in FIG. In this way, the opening / closing operation of the lid halves La and Lb and the raising / lowering operation of the storage case C are interlocked with each other, and the operating state or the storage state can be set by only one operation of the open or close button.

Although the embodiments have been described in detail above, the present invention is not limited to such embodiments, and the detailed configuration,
The shape and the like can be arbitrarily changed without departing from the scope of the present invention.

〔The invention's effect〕

As described above, the lid opening / closing device for the underfloor storage according to the present invention is
An upper end of the first arm in each X arm mechanism is provided with a pair of halved lid halves, an X arm mechanism corresponding to each lid half and coupled by a rotation axis, and a drive mechanism for displacing the X arm mechanism. Is rotatably coupled to the lower surface of each lid half, and the upper end of the second arm is engaged so as to be displaceable in the lid surface direction of each lid half, and the lower end of the second arm in each X-arm mechanism is A rotatably coupled to the floor side, and while engaging the lower end of the first arm so as to be displaceable in the floor surface direction on the floor side, the drive mechanism is an up-and-down lever that moves up and down in parallel by a drive unit, A pair of L-shaped turning levers, one end of which is rotatably coupled to the floor side at the center position of the opening, and the position of the bent portion is engaged with both sides of the elevating lever so as to be displaceable at a constant level, and each turning lever. It is equipped with a pair of link levers that connect the other end of the Since the configuration Te, a marked effect as follows.

Since the lid half, which is 1/2 the size of the entire lid, is moved up and down, the height when opened is also reduced to 1/2, and compared with the case where the entire lid that is supported by the hinge part is moved up and down.
Since the driving force is small, it can greatly contribute to downsizing of the lifting drive and reduction of power consumption.

Since the mechanical strength of the hinge part of the lid half body is not so required, it is extremely advantageous in terms of durability and reliability.

Since it can be opened and closed by the lifting drive that operates in the vertical direction, it can also be used as a lifting drive that lifts and lowers the storage case,
Interlocking control for the storage case becomes easy.

[Brief description of drawings]

1 is a side view of the lid opening / closing device according to the present invention in a fully opened state, FIG. 2 is a side view of the lid opening / closing device in a fully closed state, and FIG. 3 is a side configuration of the same lid opening / closing device in a half-opened state. Fig. 4, Fig. 4: Flow chart showing the operation of the lid opening / closing device. In the drawings, 1: Lid opening / closing device 2a ..., 2b ...: X arm mechanism 3a ..., 3b ...: Rotating shafts 4a ..., 4b ...: First arm 5a ..., 5b ...: Second arm 6 ...: Drive mechanism , 7 ... Lifting levers 8a ..., 8b ...: Rotating levers 9a ..., 9b ...: Link levers L: Lid, La, Lb: Lid half F: Floor, S: Opening

Claims (1)

[Claims] 1. A lid opening and closing device for an underfloor storage that opens and closes a lid attached to an opening of a floor, and a pair of lid halves divided into two parts.
An X-arm mechanism corresponding to each lid half and coupled by a rotating shaft and a drive mechanism for displacing the X-arm mechanism are provided, and the upper end of the first arm in each X-arm mechanism is placed on the lower surface of each lid half. It is rotatably connected, and the upper end of the second arm is movably engaged in the lid surface direction of each lid half so that the lower end of the second arm in each X-arm mechanism is rotatably coupled to the floor side. In addition, the lower end of the first arm is engaged with the floor side on the floor side so as to be displaceable in a fixed manner, and the drive mechanism is provided with an elevating lever that moves up and down in parallel by the drive unit and a floor side at the center position of the opening. A pair of L's which are rotatably coupled at one end thereof and engage the position of the bent portion with both sides of the elevating lever so as to be displaceable at a constant level.
A lid opening / closing device for an underfloor storage, comprising: a rotating lever having a shape, and a pair of link levers connecting the other end of each rotating lever and the rotating shaft of each X arm mechanism.