JPH0424991Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial field of application" This invention relates to opening/closing legs for preventing overturning of article storage furniture.

``Prior Art'' Conventionally, there have been many types of goods storage furniture, such as wagons, which are equipped with wheel devices such as swivel casters at the bottom of the furniture to allow it to move freely on the floor.

``Problems to be solved by invention'' By the way, recently, due to housing circumstances, various types of furniture are installed side by side along walls with limited space in kitchens, etc. There is a trend toward building taller pieces of furniture with thin left and right widths so that they can be pushed into the room. When placed on the ground, there is a problem that it is unstable and easily falls over.

Therefore, in this invention, in order to solve the above problems and make it possible to stably install even tall movable furniture, by providing a pair of horizontal opening/closing legs on the left and right that can widely support the bottom of the furniture. When these horizontal feet push furniture into a gap between other pieces of furniture, they can close freely and fit under the bottom frame with the same width as the bottom frame. The purpose is to make tall furniture difficult to fall over by providing both horizontal feet to automatically open from the bottom of the bottom frame to the left and right and protrude outwards when the furniture is pulled out from the bottom. be.

"Means to solve the problem" As a means to solve the problem and achieve the purpose,
At the bottom of the furniture, a rotating wheel that rolls on the floor is provided on the rear lower surface of the bottom frame, a pair of left and right horizontal feet are provided oppositely on the front lower surface, and the base end of each horizontal foot is rotated. By being rotatably supported on the center of the bottom frame by a moving shaft, the free ends of both horizontal feet are provided so that they can be opened and closed from the bottom side of the bottom frame to the left and right outside. A rotating body is provided on the lower surface of each free end of the horizontal foot so that it can roll freely in contact with the floor surface,
Furthermore, on the rear side of the rotation axis of both horizontal feet, there is a control protrusion for preventing the rearward rotation of both horizontal feet, and on the front side of the rotation axis, there is a control protrusion in the center of the bottom frame that allows both horizontal feet to move toward each other. A control protrusion for maintaining the width of the bottom frame so that the interval does not become too small is provided so as to protrude downward from the lower end surface of the bottom frame.

``Function'' The furniture equipped with horizontal opening/closing legs of the present invention rolls on the floor by a rotating wheel provided on the rear lower surface of the bottom frame and a rotating body at the free end of a pair of left and right horizontal feet provided on the front lower surface. However, each base end of both horizontal feet is rotatably supported on the bottom frame by a rotation shaft, and is rotatable.
In addition, since the rotating bodies provided at each free end of both horizontal legs roll in contact with the floor surface, when moving this furniture backwards to a wall, etc., both horizontal legs that were spread apart are moved. Due to the frictional force between the rotating body at the free end and the floor surface, the direction is automatically changed forward as they approach each other from the left and right, narrowing the distance between them and fitting them under the floor frame. The left and right widths are the same and can be easily accommodated between other furniture installed side by side.

Furthermore, when this furniture is pulled forward and moved to a larger space, both horizontal feet automatically move from the bottom of the bottom frame outward on both the left and right sides due to the frictional force between the rotating body at each free end and the floor surface. Since the legs are opened in a straight line with both legs protruding outward, these horizontal legs support the front part of the bottom frame of the furniture in a wide width, and together with the rear rotating wheels, the entire bottom of the furniture is evenly supported and stabilized. .

"Example" Embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is an enlarged perspective view of the main parts of the attachment part of the horizontal opening/closing foot according to the present invention, and FIG. 2 is a perspective view showing a tall and thin furniture A equipped with the horizontal opening/closing foot,
Use the surface pointed by the arrow in the diagram as the front of the furniture.

This furniture A has a pair of left and right bottom frames 1, 1 arranged in parallel at the bottom as bases, and a pair of long vertical frames 2, 2 at each of the front and rear ends of the bottom frames. are erected to form a continuous line between the upper ends of both the left and right vertical frames, a bottom plate 3 is pasted on both bottom frames, and guard rods 6 are installed at the front and back of the upper side of the bottom plate, and the front surface between the left and right vertical frames on the front side is erected. A mirror plate 4 is attached to the frame, and six pairs of shelf plates 5 and guard rods 6 are installed in the space between the upper and lower sides between each pair of vertical frames at the front and rear.
By arranging them in six stages at equal intervals, they constitute an article placement section together with the bottom plate 3, and a pair of left and right horizontal feet 7, 7 are provided on the lower front side between the bottom frames 1, 1.
A pair of left and right casters 8 are attached to the rear lower side of the bottom frame so that the bottom frame can be moved freely on the floor.

In the figure, 9 indicates a handle, and 10 indicates a connecting rod for both left and right vertical frames at the rear.

Details of the main parts for attaching the horizontal foot 7 will be explained with reference to FIGS. 1, 3, 4, and 5.

At the front part between the left and right bottom frames 1, 1, an upper connecting plate 11 having a rectangular side surface and a flat lower connecting plate 12 fit the bottom frames from above and below and are mounted orthogonally to each other. The lower end 11a' of the vertical piece 11a of the upper connecting plate 11 and the rear end folding piece 12 of the lower connecting plate 12 are connected to each other.
a are overlapped back and forth and protrude slightly downward from the lower end surfaces of both bottom frames, and the folding protrusion 12b is directed downward from the center of the front end of the lower connecting plate 12, and the rear end folding piece 12a and the lower end It is installed protrudingly at the same height.

Furthermore, each horizontal piece 11b, 1 of both the upper connecting plate 11 and the lower connecting plate 12 is located at the center of each of the upper connecting plate 11 and the lower connecting plate 12.
A pair of left and right rotation shafts 13, 1 pass through 2c vertically.
3 is vertically inserted, and the lower portions of both rotation shafts are made to protrude downward from the lower end surface of the bottom frame, and a pair of left and right horizontal feet 14, 14 are attached to the downwardly protruding ends of both rotation shafts.
The base end portion 14a of is rotatably supported.

Further, a steel ball 15 is fitted as a ball caster 16 inside the free end portion 14b of both horizontal legs 14 so as to be able to freely roll in contact with the floor surface. , a circular flange is fitted to the outer periphery of a rotatable cylindrical box frame surrounding the steel ball 15, and the circular flange is fitted and fixed within the horizontal foot.

The configuration of this embodiment is as described above, and its operation will be explained as follows. Both horizontal feet, which are disposed opposite to each other on the lower side of the bottom frame, have their base ends rotatably supported, and the lower surface of their free ends. A steel ball that rolls in contact with the floor is attached to the furniture, so when the furniture is pushed backwards, the friction between the steel ball and the floor automatically causes the horizontal legs to close from the open position. If the furniture fits under the bottom frame, and if the furniture is pulled forward, both horizontal feet that are closed will automatically open outward to the left and right, until both horizontal feet are opened in a straight line horizontally. Add it to support the bottom of the furniture.

When the legs are open, the lower end 11a' of the upper connecting plate and the folded-down piece 12a at the rear end of the lower connecting plate overlap on the rear side of the rotation axis to prevent backward rotation and maintain a straight line. When the legs are closed, the folding protrusion 12b at the center of the front end of the lower connecting plate on the front side of the rotation axis prevents the horizontal legs from coming closer together to prevent the gap between them from becoming too small. It is kept the same width as the bottom frame.

``Effect of the idea'' Both horizontal feet placed opposite each other on the left and right sides at the front of the bottom frame of the furniture close when the furniture is moved back and fit under the bottom frame, making it easy to push this furniture into a gap between other pieces of furniture. The bottom can be stored easily and smoothly without touching the bottom of adjacent furniture, and when the furniture moves forward, both horizontal feet automatically open and spread out in a straight line to the left and right sides of the bottom frame. Stabilize the furniture by supporting the bottom frame widely.

Therefore, when furniture is stored between other pieces of furniture placed side by side, the furniture can be stabilized by mutual cooperation with the adjacent furniture on both sides, and when pulled out to a wide space in front, it can be widely supported by both horizontal legs. The furniture is stabilized by preventing it from shaking, and the opening and closing operations of both horizontal legs are automatically and conveniently performed by moving the furniture forward and backward, making storing and drawing out the furniture extremely convenient and efficient.

[Brief explanation of the drawing]

Fig. 1 is an enlarged perspective view showing the main parts of the mounting of both horizontal legs in the embodiment of the present invention, and also shows the open/closed state thereof; Fig. 2 is a perspective view of a tall furniture equipped with both horizontal legs; The figure is a bottom view of the same essential parts and also shows the opened and closed states of both horizontal legs, FIG. 4 is a front view of the same essential parts, and FIG. 5 is an enlarged side view showing the bottom of the same furniture. 1... Bottom frame, 7... Horizontal foot, 8... Caster, 11... Upper connecting plate, 11a'... Lower end of vertical piece, 12... Lower continuous plate, 12a... Rear end folding piece, 12b ... Front end center folding piece, 13 ... Rotating shaft, 14 ... Horizontal foot, 14a ... Base end, 14b
...Free end, 15...Steel ball, 16...Ball caster.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In article storage furniture that is equipped with wheels on the bottom and can be moved on the floor, a pair of left and right horizontal feet are provided opposite to each other on the front lower surface of a bottom frame provided at the bottom of the furniture. The base ends of both horizontal feet are rotatably supported on the bottom frame by rotational shafts, so that the free ends of both horizontal feet can be opened and closed from the bottom of the bottom frame to the left and right outside. An opening/closing foot for preventing overturning of furniture, characterized in that the horizontal foot is provided with a rotating body that can freely roll in contact with the floor surface at each free end of the horizontal foot. (2) At the rear side of the rotation axis of both horizontal feet, there is a control protrusion that prevents the backward rotation of both horizontal feet, and at the front side of the rotation axis, there is a mutual spacing between the two horizontal feet in the center of the bottom frame. 2. The opening/closing foot for preventing overturning of furniture according to claim 1, further comprising a control protrusion projecting from the lower end surface of the bottom frame to maintain the width of the bottom frame.