JPH0247859Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to storage furniture, particularly to improvements in the grounding portion thereof.

BACKGROUND ART Conventionally available storage furniture such as chests of drawers, water closets, bookshelves, cabinets, lockers, etc. have the lower end of the architrave grounded to the installation surface such as tatami or the floor.

Problems to be Solved by the Invention Although such conventional storage furniture provides stability when installed, it is inconvenient because it cannot be easily moved when rearranging or moving. This problem can be solved, for example, by equipping the storage furniture with casters, but this is not preferable because it lacks stability during installation and gives an unsightly appearance.

There is also a proposal to have casters that can be moved in and out, but the conventional structure is complex and expensive because it includes a gear transmission mechanism, and it is necessary to attach and detach the handle from the rotating shaft when operating the casters. It is troublesome to operate, and since the handle is a separate part, there is a risk of losing it.

The present invention was made with the aim of eliminating these conventional problems.

Means to Solve the Problem The present invention rotates a pair of front and rear support arms and two sets of left and right support arms in the vertical direction from each corner of the architrave of the storage furniture using the base pivot as a fulcrum. The movable member is mounted on the lower side of the intermediate portion between the proximal end and the distal end of each support arm to maintain the support arm in a laterally extended state by contacting the ground surface with its own weight. Installation, a screw rod is installed in the middle of the distance between the opposite ends of the front and rear support arms of each set, and an elevating member that is raised and lowered along the screw rod as the screw rotates, and the front and rear sides of the elevating member are It straddles the upper ends of the opposing tip sides of the pair of support arms, and when the elevating member is lowered, the pair of front and rear support members pivots downward about the base end pivot, and the pair of front and rear moving members are mounted on the platform. The present invention relates to storage furniture characterized in that the lower end of the ring is configured to protrude downward.

Embodiment An embodiment of the present invention will be described below based on the accompanying drawings.

In the embodiment shown in the figure, a cylindrical frame-shaped frame 1 is provided on both the left and right sides of the architrave a, the lower end of which is approximately flush with the architrave a, and the upper end of which is slightly lower than the architrave a. It is fitted and fixed in place. This frame 1
are for attaching the following constituent members, and may be omitted when each constituent member is attached to the architrave a via appropriate attachment members as necessary.

A pair of front and rear support arms 2, 2 are attached to the upper end of the inner surface of the front and rear side walls of each frame 1 in a cantilevered manner in the front-rear direction so as to be able to rotate up and down using the base end pivot 21 as a fulcrum. It will be done.

The moving member 3, for example, a caster, is normally grounded by its own weight on the ground surface b below the intermediate portion between the base end and the tip of the support arm 2, and the support arm 2 is placed in a horizontal or slightly downwardly inclined projecting state. A distance 4 (see FIG. 3) necessary for downward rotation of the support arm 2 is formed between the opposing tip 22 of the support arm 2 and the ground plane b.

A screw rod 5 is installed in the middle of the distance between the opposing tips 22, 22 of the pair of front and rear support arms 2, 2. In the illustrated embodiment, the screw rod 5 is a pair of upper and lower plates 11 fixedly installed at the front and rear intermediate portions of the frame 1.
11 freely, and the upper and lower plates 11, 11
On the other hand, it is prevented from coming off by pins 51, 51, and can freely rotate in this state of being prevented from coming off. A rotation operation part 52 is provided at the upper end of the screw rod 5, and in the illustrated embodiment, it is a part of the bottom plate c of the storage furniture.
c' is configured to be operated by opening and closing, but in some cases, the upper end of the screw rod 5 may be made to protrude upward through the bottom plate c, and a rotary operating portion 52 may be provided at the upper end of this protrusion. may be provided.

A lifting member 6 is provided so as to be able to move up and down along the screw rod 5 as the screw rod 5 rotates. The front and rear both sides 61, 61 of the elevating member 6 are straddled over the upper ends of the opposing tips 22, 22 side of the pair of front and rear support arms 2, 2, and when descending, the support arms 2, 2 are connected to the base end pivot support 21, 21 as a fulcrum and can be forcibly rotated downward. It is necessary that the lifting member 6 is prevented from rotating together with the screw rod 5. In the illustrated embodiment, the screw rod 5 is narrowed and guide rods 7, 7 are erected and fixed on both the front and rear sides. Through holes 6 on both front and rear sides of the elevating member 6
2,62 is shown. In this case, if the fitting between the guide rod 7 and the through hole 62 is made with relatively high precision, the elevating member 6 will move up and down while always maintaining a horizontal state, and the rotation of the threaded rod 5 will be attached to the threaded part with the threaded rod 5. It is possible to prevent the occurrence of twists that would impede movement.

The present invention having the above-mentioned configuration can be used in storage furniture,
As shown in Fig. 3, when the elevating member 5 is in the raised position and the architrave a is in contact with the ground surface b, the architrave a supports the weight of the storage furniture, just like normal furniture. A stable and reliable installation condition can be obtained. In this case, the moving member 3 is grounded based on its own weight, and does not substantially support the stored weight. In the normal installation state shown in Fig. 3, the moving member 3 and its retracting mechanism are all hidden within the architrave a and are completely invisible from the outside, so the appearance is completely different from that of ordinary furniture of this kind. There is no.

In the state shown in FIG. 3, when the screw rod 5 is rotated and the elevating member 6 is lowered, as the elevating member 6 descends, the pair of front and rear support arms 2, 2 use the proximal pivots 21, 21 as fulcrums. It rotates downward as
Therefore, the moving members 3, 3 attached to the lower ends of the support arms 2, 2 protrude below the lower end of the architrave a,
It is grounded in place of architrave a, making it possible to easily move storage furniture. When the moving members 3, 3 are extended, the weight of the storage furniture becomes a drag on the rotation of the screw rod 5, but since the moving member 3 is attached at an intermediate position in the length direction of the support arm 2, Arm 2
This functions as a lever, and the screw rod 5 can be rotated even with a relatively small rotation. If there is a weight difference between the front and rear parts of the storage furniture, the elevating member 6 may tilt when the arms 2, 2 are pressed down, and the threaded part with the threaded rod 5 may be twisted. The twisting of the threaded portion can be eliminated by guiding the lifting member 6 up and down using guide rods 7, 7 as shown in the figure.

If the moving members 3, 3 protruding from the architrave a are to be re-immersed into the architrave a, the elevating member 6 may be raised to the position shown in FIG. 3 by rotating the screw rod 5. This again results in the normal installation condition.

In the present invention, the attachment position of the moving member 3 to the support arm 2 should be as close to the proximal end as possible.
This is advantageous for allowing the support arm 2 to function efficiently as a lever, but if it is too close to the proximal end, it will be difficult to obtain a sufficient protrusion width of the moving member 3, so the support arm 2 It is appropriate that it be located in the middle in the length direction or slightly closer to the proximal end. Further, the protruding width of the moving member 3 is not particularly limited as long as it can support the entire weight of the storage furniture, but is normally selected and determined as appropriate from a range of about 10 to 20 mm.

Effects According to the storage furniture of the present invention, since the movable member is provided so that it can be freely retracted, it is possible to ensure convenience when moving without causing deterioration of the appearance, and the mechanism for the retraction and ejection of the movable member is provided by screw rods and elevating members. Since it consists of a support arm and a support arm, it is extremely simple in structure, and since the support arm functions as a lever, it can be easily operated manually.Furthermore, all of the component parts are built into the architrave a. Because it is stored, there is no risk of parts being lost, and this type of product with good quality and performance can be provided at a low price.

[Brief explanation of the drawing]

Fig. 1 is a partial plan view of essential parts showing an example of an embodiment of the present invention, Fig. 2 is a sectional view taken along line A to A in Fig. 1, and Fig. 3 is a sectional view taken along line B to B in Fig. 1. be. In the figure, 1 is the frame, 2 is the support arm, and 3 is the frame.
4 is a moving member, 4 is a spacing, 5 is a screw rod, 6 is a lifting member, and 7 is a guide rod.

Claims (1)

[Scope of utility model registration request] From each corner of the architrave of the storage furniture, a pair of support arms (front and rear) and two sets of left and right are installed in a cantilevered manner so that they can rotate up and down using the base pivot as a fulcrum. A moving member is attached to the lower side of the intermediate part between the base end and the tip of the arm, which normally touches the ground surface with its own weight and holds the support arm in a laterally extending state, and the front and rear pairs of support arms of each set are placed opposite each other. A screw rod and an elevating member that is raised and lowered along the screw rod as the screw rotates are installed in the middle of the distance between the tips of the tips, and the front and rear sides of the elevating member are connected to the upper ends of the opposing tip sides of the pair of front and rear support arms. When the elevating member is lowered, the pair of front and rear supporting members are pivoted downward about the base end pivot, and the pair of front and rear moving members protrude below the lower end of the architrave. storage furniture.