JPH0967926A - Underfloor storage unit - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to provide an underfloor storage unit that is robust and operates the automatic lifting device reliably, has a simple structure, and is easy to operate. [Composition] A lid body having an upper surface flush with the floor plate and having an outer peripheral shape as a base than the storage container, an automatic lifting device for raising and lowering the storage container, and a guide roller provided in an L-shaped angle, The rack teeth provided on the inner surface of the angle are directly connected to the rotary motor, and the elevating means that meshes with the gear that rotates in conjunction with the motor drive, and the mounting table for mounting the storage container on this elevating means are mounted to move horizontally. An underfloor storage unit designed to be held.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underfloor storage unit for storing articles by utilizing an underfloor space and automatically raising and lowering a storage container to easily and reliably take out and put in the stored items. Is.

[0002]

2. Description of the Related Art A conventional storage device of this type is known in which a lid is removed and a storage container is stored and stored in a position below an opening under the floor. or,
As an improved version of this, there is known one that automatically moves up and down by using a table lifter or a telescopic rod (for example, Japanese Utility Model Publication No. 56-41005, Japanese Patent Publication No. 60-273).
39 gazette and Jitsukai Sho 63-62541 microfilm).

[0003]

In the former case described in the prior art, since the operation switch is provided at a part of the opening under the floor, the bending operation is still required when the lid is opened, and the jack is also used. The expansion and contraction of the main body, in other words, the raising and lowering operation of the movable inner box, has a problem in that the nut has a structure in which the nut is screwed back and forth from the left and right of the reverse-cutting screw, which requires precision.

Further, in the case where a multi-stage pantograph type main body (rod) is used, when a large amount of stored items are accommodated only by pivotally supporting the bent portion of the multi-stage rod body, lifting and holding are not sufficient and wobble occurs. Therefore, it has a complicated structure such as providing a U-shaped frame, and there is a problem in practical use such as damage to the pivot portion due to moisture under the floor.

Further, in the latter, although the electric table lifter is adopted, the leg portion is in a cantilever state with respect to the mounting table, and there is a problem that wobble occurs as described above.

The present invention has been made in view of the above problems of the prior art. The object of the present invention is to operate the lifting device robustly and reliably, and to have a simple structure and easy operation. It is intended to provide an underfloor storage unit.

[0007]

To achieve the above object, in the underfloor storage unit according to the present invention, the upper part of the storage container is covered so that the upper surface is flush with the floor plate surface and the outer peripheral shape is larger than that of the storage container. A lid is formed, an electric or hydraulic lifting device for raising and lowering the storage container, and a guide roller is provided on the L-shaped angle of the external fixing frame that guides the lifting and lowering of the storage container, and rack teeth are provided inside the L-shaped angle. Is formed, and the mounting table for mounting the storage container is fixedly held on the elevating means that meshes with the gear that rotates in conjunction with the drive of the rotary motor.

In the elevating means, the pinion gear directly connected to the rotary motor shaft via the guide plate and the rack teeth are engaged with each other, and the L-shaped angle rack teeth and the pinion gear which are erected on the square of the external fixed frame are respectively provided. Do you mesh
Alternatively, the meshing pinion gear is moved up and down at two points facing each other.

Further, a rotary motor is fixedly mounted on a mounting plate provided on the lower surface of the mounting table, or a motor base is directly fixed on the lower surface of the mounting table, and a worm gear and a bevel gear which are rotated by driving the rotary motor are installed. The pinion gear is rotated via the pinion gear, and the storage container is moved up and down accordingly.

[0010]

[Function] The underfloor storage unit configured as described above is
The pinion gear directly connected to the rotary motor via the guide plate meshes with the L-shaped angle rack teeth in a square shape. The pinion gear is rotated by the remote control switch ON / OFF and speed adjustment, and the underfloor unit placed on the mounting table is Both work up and down. At this time, the meshing deviation between the pinion gear and the rack teeth, especially the prevention of the protrusion from the external formwork, is guided by the guide plate and operates smoothly, and also works together with the guide roller guide provided inside the L-shaped angle. Therefore, the lifting operation is smoothly and surely performed.

Next, even in the structure in which the pinion gear and the rack tooth are engaged with each other at two opposite positions, the guide plate and the guide roller guide the same as above to smoothly and surely ascend and descend.

Further, when the number of rotating motors used is one, a worm gear is interposed on the same shaft as the rotating motor shaft to reduce the rotating speed of the rotating motor, the rotating speed is switched to a low speed, and the low speed rotation is transmitted to the pinion gear. In order to do so, the lifting operation is performed via the bevel gear.

Further, in hydraulic operation without using electric power, the hydraulic hoses connected to the bamboo shoot jacks erected in the external fixing frame are converged and connected to the hydraulic unit, so that the hydraulic unit is operated by operating the remote control switch. When the pump inside operates and oils an appropriate amount to the bamboo shoot jack, the bamboo shoot jack moves up and down. The oil feed amount is adjusted in advance by a hydraulic unit so that the lifting operation can be smoothly performed.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the storage container 1 is formed in the shape of a box with an open top surface and stores various items inside. The electric lifting device A is arranged below the opening 22 that opens a part of the floor plate 9. It is well known that the storage container 1 is fixedly mounted on the mounting table 8 and the normal condition is that the elevating device A is in the lowered position so that the storage container 1 is located under the floor below the opening 22. The external fixing frame 3 installed below the opening 22 surrounds the guide roller 13 installed adjacent to the cut portions 23 cut in the inverted L shape at the four corners of the mounting table 8. L-shaped angle 4 (FIG. 2) which is erected upright, and a lower edge portion 24 provided in the lower portion of the external fixed frame 3,
Rack teeth 5 are formed on the inner facing surface of the mold angle 4. The mounting table 8 is formed by opening downward to form a peripheral portion, and the rotary motors 12 attached to the lower surface of the mounting table 8 and the guide plates 7 are attached to the lower surface of the mounting table 8 from the notches 23 provided at the four corners. A gear 6 directly connected via the gear 6 is faced to form an ascending / descending means for engaging the gear 6 with the rack teeth 5, and the mounting table 6 is horizontally moved up and down by the engagement structure of the four corners. . Although the respective rotary motors 12 provided are electrically connected to each other through the remote controller SW11 and the cord 10, the rotary motors may be ordinary rotary motors, and it is preferable to use a low speed motor.

FIG. 2 shows another embodiment of the present invention in which the positions of the rotary motors 12 in the above-mentioned structure are opposite to each other, and two motors are used. The storage container 1 is mounted on the mounting table 8
When it is mounted on the table and is moved up and down by the electric lifting device A, the mounting table 8 is leveled in consideration of the balance between the guide of the guide roller 13 provided in the notch 23 and the two-point support of the rotary motor 12. It is lifted up and down and lifted up and down without wobbling.

Next, FIG. 3 shows another embodiment of the present invention, in which one or two rotary motors 12 are used, and the motor mounting is provided at the central position of the mounting table 8 or at a plurality of positions. It is mounted on the plate 16 or directly on the lower surface of the mounting table 8 via a motor base. Thus, the worm gear 14 axially attached to the tip of the rotary motor 12 is attached to the rotary shaft 27 pivotally attached to the shaft support plate 17 fixed to the lower surface of the mounting table 8.
The rotation speed of the rotary motor 12 is reduced to rotate at a low speed, and the bevel gear 15 and the gear 6 which are rotatably mounted with the rotary shaft 27 as the same shaft are driven by the low speed rotary drive of the rotary shaft 27. As the gear 6 that is rotated and meshes with the rack teeth 5 is interlocked, the mounting table 8 is lifted and lowered.

Next, the one shown in FIG. 4 shows another embodiment of the present invention. In contrast to each of the above-mentioned embodiments being an electric lift device A by electric operation, this embodiment shows a hydraulic pressure. It is a hydraulic lifting device B that is operated. The hydraulic lifting device B is composed of a so-called bamboo shoot jack 20 which is a multi-stage tubular shape and is capable of protruding, as shown in the figure. Are connected to the bottom of the external fixed frame 3, respectively, and are connected to the hydraulic unit 18 at the lowermost stage of the jack 20 via hydraulic hoses 25, respectively. The hydraulic unit 18 is composed of a hydraulic pump with a regulating valve and an oil tank, and although not shown, the oil flow in the oil tank is adjusted by opening the unit 18 before operation. The raising / lowering operation of the storage container 1 is performed by operating the remote control SW11 to operate the hydraulic pump in the hydraulic unit 18 via the drive of the motor pump 19 connected to the remote control SW11.

[0018]

Since the present invention is configured as described above, it has the following effects.

The L-shaped angles of the external fixing frame are erected at the four corners of the opening of the floor plate, and correspondingly, a guide roller is attached to the adjoining surface of the cut portion of the mounting table so that the inner surface and the corresponding surface of the L-shaped angle are fixed. By moving the guide roller so that it slides, the lifting and lowering operation of the storage container can be stably held up and down. At the same time, they can be smoothly operated without wobbling even when the upper edge of the storage container having a small opening area is covered with the lid having a large area and can be smoothly fitted into the opening portion of the floorboard.

The motor mounting plate and the shaft support plate are attached to the lower surface of the mounting table which is connected to the lower surface of the storage container, so that the rotary motor and the rotating shaft can be arranged compactly, and the peripheral portion (skirt) By providing the (part), the arrangement state is shielded from the outside, so that the appearance can be presented.

By providing cutouts at the four corners of the mounting table and facing the pinion gear directly connected to the rotary motor through the guide plate, damage by gear teeth can be prevented and safety can be ensured. The meshing of rack teeth can be maintained.

Rack teeth are engraved on the inner surface of the L-shaped angle so as to mesh with the pinion gear directly connected to the rotary motor shaft. With the positive engagement, the mounting table can be stably held horizontally, so that the storage container can be stably lifted and lowered.

In the two-point support at the position where the pinion gear and the rack teeth face each other, the two-point support, the guide roller and the L
Stable lifting and holding can be achieved by the support by sliding contact with the inner surface of the mold rack and the corresponding surface.

By adopting the hydraulic lifting device by erection of the bamboo shoot jack, it is possible to obtain a device having a simple structure, inexpensive, reliable and easy to operate.

When the storage container is used, the so-called bending operation can be completely wiped out by using an automatic lifting device by an external operation by electric or hydraulic pressure.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional perspective view showing a first embodiment of the present invention.

FIG. 2 is a partial cross-sectional perspective view showing a second embodiment of the present invention.

FIG. 3 is a partial sectional perspective view showing a third embodiment of the present invention.

FIG. 4 is a partial cross-sectional perspective view showing a fourth embodiment of the present invention.

[Explanation of symbols]

 1 Storage Container 2 Lid Body 3 External Fixing Frame 4 L-type Angle 5 Rack Teeth 6 Gear (Pinion Gear) 8 Placement Table 13 Guide Roller 14 Worm Gear 18 Hydraulic Unit 20 Bamboo Jack Jack 22 Opening 23 Notch 24 Lower Edge A Electric Lifting Device B Hydraulic lifting device

Claims (4)

[Claims] 1. A storage container placed below the opening under the floor, the lid body covering the upper part of the storage container, the upper surface of which is flush with the floor plate surface, and the outer peripheral shape of which is larger than that of the storage container. , An electric or hydraulic lifting device for raising and lowering the storage container,
A gear that has a guide roller provided on an L-shaped angle of an external fixed frame that guides the elevating and lowering of the storage container when moving up and down, and forms rack teeth inwardly of the L-shaped angle to rotate in association with the drive of a rotary motor. An underfloor storage unit, characterized in that a mounting table on which a storage container is mounted is fixedly held by an elevating means that meshes with. 2. The elevating means comprises a pinion gear directly connected to a rotary motor shaft via a guide plate and a rack tooth, and each meshes with an L-shaped angle rack tooth, or meshes at positions opposite to each other. The underfloor storage unit according to claim 1, wherein the underfloor storage unit is configured to move up and down by rotation of a pinion gear. 3. In the elevating means, a rotary motor is fixed to a mounting plate provided on the lower surface of the mounting table, or a motor base is directly fixed to the lower surface of the mounting table and rotated by driving the rotary motor. The underfloor storage unit according to claim 1, wherein the pinion gear is rotated via the worm gear and the bevel gear, and is accordingly moved up and down. 4. The elevating means is arranged to elevate and lower via a hydraulic hose by adjusting a flow rate from a hydraulic unit connected to a rotary motor for a plurality of bamboo shoot jacks standing upright in an external fixed frame. Storage unit.