JPH0616150Y2 - Storage step - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a storage pedestal that includes a top plate and a footrest, and is capable of folding a front leg support and a rear leg support during storage.

(Prior Art) As shown in FIG.
The top plate 63 and the treadle 64 are rotatably provided on the
The top plate 63 and the rear end portions of the steppers 64 are pivotally connected to each other by a connecting plate 65 different from the rear leg support 62. Therefore, the number of parts is increased due to the necessity of providing the connecting plate 65, and the depth of the step is limited.

Further, in order to facilitate the transportation of the step, the front leg support 62 is provided with a wheel 66 projecting forward. The wheel 66 is provided so as to be rollable in the front-rear direction and is urged downward by a spring, It is pushed up by the load of the lifter as shown by the solid line, and the lower end surface of the front leg is fixed to the floor surface.

However, when the step pedestal is folded and stored in a cabinet as shown in FIG. 8, for example, the protrusion of the wheel 66 becomes an obstacle and the storing direction is different from the rolling direction of the wheel 66, so that the wheel is used effectively during storage. I can't.

(Object of the Invention) An object of the present invention is to make it easy to carry and store and to make it compact when opening and closing the legs.

(Technical Means for Achieving the Purpose) In order to achieve the above-mentioned object, the present invention has an upper end portion of a pair of left and right front leg columns and an upper end portion of a pair of left and right rear leg columns that are openably and closably connected. Then, in the storage stepped base, which is foldably and pivotally attached to the upper part of the front leg support, and the foot is pivotally attached to the middle part of the front leg support, the lower end of the front leg support is open on the floor. Form a non-slip surface that contacts the ground, and incline upward to this to form a wheel mounting surface that is located at the lowest end when the legs are closed.The wheel mounting surface rolls in the direction that connects the lower ends of the front leg columns. Equipped with movable wheels.

Further, the invention according to claim 2 is provided with a wheel mounting surface and a wheel at the lower end portion of the rear leg column instead of the front leg column.

(Operation) By opening the front and rear leg columns, the opening stop metal fittings supported by the rear leg columns and the tread pivotally attached to this open, and the stopper part comes into contact with the tread to open the tread. Fix it. That is, the tread also serves as a part of the opening prevention mechanism. Then, rotate the top plate and place it on the support of the rear leg support.

In the open state, the non-slip surface contacts the floor surface and the wheels on the wheel mounting surface float from the floor surface, so that the lower ends of the leg columns are fixed regardless of the person's elevation, and the grounding state of the step is stabilized.

In the case of folding, the top plate is rotated to fit it between the front leg columns, and the tread and the stopper metal are pivoted upward to fold the front leg column and the rear leg column.

When transporting, use the wheels at the lower end with the platform stepped vertically. Also, when storing in a cabinet, use the wheels at the lower end to push it into the cabinet.

(Embodiment) FIG. 2 is a top view showing an open leg state of a storage step to which the present invention is applied. In FIG. 2, a pair of left and right front leg columns 1 and a pair of left and right rear leg columns 2 are shown. Their upper ends are pivotally connected to each other by openable and closable connecting pins 3.
A top plate support shaft 7 that connects the left and right front leg support columns 1 is fixed to the upper part of the front support column 1 and below the connecting pin 3, and the front support column below the top support shaft 7 is spaced apart. A stepping support shaft 20 that connects the left and right front leg columns 1 is fixed to the middle portion. A top plate 5 extending rearward is rotatably supported on the top plate support shaft 7, and the cross-sectional shape L is provided at both side ends of the top plate 5.
The letter-shaped top plate side plates 6 are fixed to each other. A foot (foot) 15 extending rearward is rotatably supported on the foot supporting shaft 20, and a cross section having a bent portion at the upper end as shown in FIG. 3 at both side ends of the foot 15. The foot side plate 16 having an inverted L-shape is fixed.

FIG. 1 shows a side view. An upper joint material and a top plate receiving member 10 connecting these are fixed to the upper end portion of the rear leg support 2 by tapping screws 11, and the lower end portion of the rear leg support 2 is connected to the upper support. A lower joint material 38 connecting these is fixed by a tapping screw 40. The upper joint material / top board receiving material 11 is disposed at substantially the same height as the top board support shaft 7, and as shown in the figure, the top board 5 can be locked in a substantially horizontal use state.

In the middle part of the rear leg support 2, a metal fitting support shaft 43 for connecting these is provided.
Are fixed by tapping screws 45, and the metal fitting support shaft 4
3 is arranged at substantially the same height as the stepping support shaft 20, and a pair of left and right opening stopper fittings 42 are rotatably supported. As shown in FIG. 7, the stopper metal fitting 42 is formed in an inverted L-shaped cross-section having a bent portion at the upper end, and
Positioning is performed in the axial direction by the step portion 43a of the support shaft 43. 54 is a washer. This stop fitting 42
As shown in FIG. 1, the front end portion of is rotatably pivotally connected to the foot side plate 16 by left and right pivot pins 47, respectively, so that it can be folded upward. The front end portion of the bent portion overlaps with the rear end upper surface portion of the foot side plate 16 when the legs are opened, and the stopper portion 42a is formed.
Play a role as. That is, at the time of opening the legs, the upper side of the rear end portion of the foot side plate 16 is overlapped and abutted from above, and the foot 15 and the stopper 42 are fixed in a horizontal state.

An end piece 25 is fixed to a rear half of the lower end portion of the front leg support 1 by a rivet 26, and a lower surface of the end piece 25 is formed with an anti-slip surface 27 that contacts the floor surface T when the leg is opened. A wheel attachment 29 is provided with a rivet 30 on the front side of the end piece 25.
A wheel mounting surface 31 that is inclined upward with respect to the skid prevention surface 27 is formed on the mounting member 29, and a wheel 32 that projects downward from the mounting surface 31.
Is supported.

An end piece 35 having a non-slip surface 36 is fixed to the lower end portion of the rear leg column 2 as in the case of the end piece 25.

In FIG. 4 showing the closed leg state, the lower end wheel mounting surface 31 of the front leg support 1 is located at the lowermost end when the leg is closed.

FIG. 5 is an enlarged view taken along the line VV in FIG. 3, in which a horizontal wheel shaft 50 extending in the front-rear direction is supported by the fixture 29, and the wheel 32 is rotatably attached to the wheel shaft 50. Therefore, the wheels 32 are supported so as to roll in the direction connecting the lower ends of the front leg columns 1.

FIG. 6 shows a VI-VI sectional enlarged view of FIG. 4, and a collar 52 is arranged between the top plate side plate 6 and the front leg support 1. Further, the cross-sectional shape of the front leg support 1 is formed in an L shape, and the rear leg support 2 fits in the space of the front leg support 1 when the legs are closed, as shown in the figure.

As shown in FIG. 1, when the legs are open, the anti-slip surfaces 27, 36 of the end pieces 25, 35 of the front and rear leg columns 1, 2 are in contact with the floor surface T, and the wheels 32 are floating upward.

Further, the foot 15 and the stopper metal 42 are horizontally fixed, and the foot side plate 16 is used as a part of the stopper mechanism. The top plate 5 is locked to the receiving member 10.

In the case of folding, the top plate 5 is rotated in the direction of the arrow P to be housed between the front leg columns 1, and the opening stopper fitting 42 and the foot 15 are folded upward, and at the same time, the front and rear leg columns 1 and 2 are folded.
That is, the state shown in FIG. 4 is obtained.

Wheel 3 which is located at the lowermost end in this posture and contacts the floor surface T
2 is rolled and the step A is transported in the direction connecting the lower ends of the front leg columns. Even when it is stored in the cabinet C as shown in FIG. 8, the wheels 32 can be rolled and pushed in, and can be stored smoothly.

(Other embodiment) A wheel mounting portion having a wheel mounting surface and a wheel may be provided on the rear leg column.

(Explanation of the Invention) As described above, according to the present application, the upper ends of the pair of left and right front leg struts 1 and the upper ends of the pair of left and right rear leg struts 2 are pivotally connected to each other so as to be openable and closable. The top plate 5 is pivotally attached so that it can be freely folded, and the foot 15 can be freely folded in the middle of the front leg support 1.
In the storage step pedestal to which is pivoted, a non-slip surface 27 is formed at the lower end of the front leg support 1 to contact the floor surface in an open state, and is inclined upward with respect to this, and is positioned at the lowest end when the leg is closed. A wheel mounting surface that forms a wheel mounting surface, and the wheel mounting surface 31 is a wheel 3 that is rollable in the direction connecting the lower ends of the front leg columns 1.
Since two are arranged, there are the following advantages.

(1) When it is dragged and transported during storage, it comes into contact with the floor surface of the wheel 32 and rolls, allowing smooth movement,
Easy to carry. Further, even when folded and pushed into the cabinet, the wheels 32 can be rolled in the pushing direction, the storage work is easy, and the cabinet is not scratched.

(2) When the legs are lifted and lifted up and down, the anti-slip surface 27 of the pillar 1 is in contact with the floor surface and the wheels 32 are in a floating state.

(3) Compared to the structure in which the wheels are located at the position protruding from the front leg support as in the conventional example shown in FIG. 9, since the wheels 32 do not extend to the outside, the width when stored is compact, and the width is limited. Most suitable for a cabinet storage type step.

The invention according to claim 2 has the same advantages as those of the invention according to claim 1.

[Brief description of drawings]

FIG. 1 is a side view of the storage step to which the present invention is applied in an open leg state, FIG. 2 is a top view of the open leg state, FIG. 3 is a front view of the open leg state, and FIG. 4 is a side view of the folded state. Fig. 5 and Fig. 3
FIG. 6 is an enlarged sectional view taken along line VV in FIG. 6, FIG. 6 is an enlarged sectional view taken along line VI-VI in FIG. 4, FIG. 7 is an enlarged sectional view taken along line VII-VII in FIG. 4, and FIG. FIG. 9 is a side view of a conventional example. 1 ... front leg support, 2 ... rear leg support, 5 ... top plate, 10 ...
… Receiving material, 15 …… Treading, 27 …… Slip prevention surface, 4
2 …… Opening stop fitting, 42a …… Stopper part

Claims (2)

[Scope of utility model registration request] Claim: What is claimed is: 1. A pair of left and right front leg columns and upper ends of a pair of left and right rear leg columns are pivotally connected to each other in an openable and closable manner, and a top plate is pivotally attached to the upper portion of the front leg columns so as to be foldable. In a storage stepped stand in which a tread is pivotally attached to the middle part of the front leg support, a bottom surface of the front support is provided with a non-slip surface that contacts the floor with the legs open and tilts upward with respect to this. A storage stepped base that has a wheel mounting surface located at the lowest end when the legs are closed, and that is equipped with wheels that can roll in the direction connecting the lower ends of the front leg columns. 2. The storage step according to claim 1, wherein a wheel mounting surface and wheels are provided at the lower end portion of the rear leg column instead of the front leg column.