JP4157113B2 - Stable support leg structure such as an article support stand or a swivel chair - Google Patents

Description

  The present invention relates to a stable support leg structure such as an article support stand or a swivel chair used for display or display of articles such as exhibits and products.

Conventionally, an article support stand has been widely used to display and display articles such as exhibits and products. This article support stand has a configuration in which an article support section is connected to the upper end of a column supported by three to five legs (see, for example, Patent Document 1). If the support is supported by the three legs, each leg is in contact with the floor surface, and the support can be supported and established in a stable state of so-called three-point support. However, when it is supported by four or five legs, it will come into contact with the three legs or the floor due to the unevenness of the floor, but the other 1-2 legs will not come into contact. May be stable.
However, the upright column becomes unstable because the center of gravity moves upward as the height increases. For this reason, even if the column is only slightly inclined, it is easy to fall down despite being supported at three points.

On the other hand, conventionally, an article support stand has been proposed in which three legs are each supported by two legs with respect to the floor surface, that is, five legs as a whole. According to this, since the support is supported at five points on a circle centered on the support, even if the center of gravity of the entire support is moved, it is difficult to easily fall down.
Special table 2003-511132 gazette

However, since the conventional article support stand is configured to support the three legs with two more feet, if there is an inclination or a step on the floor, one of the legs is lifted from the floor As a result, there is a problem in that the support on the leg portion having the foot is loose and the support state becomes unstable on the floor.

  The present invention has been made paying attention to the conventional problems as described above, and even when there is a slight inclination or a step on the floor surface, a total of 6 by the support of dispersion of two points for each of the three legs. By adopting a leg structure that stably supports the struts by equally distributed loads at the points, it is possible to reliably and stably support the six feet on the floor surface, and to prevent tilting and falling of the struts, An object of the present invention is to provide a stable support leg structure such as an article support stand or a swivel chair that can stably display and display products.

In order to achieve the above object, a stable support leg structure such as an article support stand or a swivel chair according to the present invention is connected to a support column having an article support member at the upper end portion and around the lower end portion of the support column at equal intervals. And three rods, and rods inserted so as to be rotatable around an axis with respect to rod guide holes provided in the legs, and tips of the legs with respect to the floor surface characterized in that a and a two foot for supporting at two points of interest with respect to the axis of the rod

  As a result, each leg that supports each leg at two points with respect to the floor surface has a rod that rotates within a predetermined angle within the rod guide hole according to the inclination or step of the floor surface. Contacts the floor.

  Further, in the stable support leg structure such as an article support stand or a rotating chair according to the present invention, the rod is provided with a ring groove, and the leg is fitted with the ring groove to prevent the rod from coming off. A washer is provided.

  Accordingly, the rod can be smoothly rotated without moving in the axial direction in the rod guide hole while being supported by the split washer.

  Further, in the stable support leg structure such as an article support stand or a rotary chair according to the present invention, a protrusion is provided on the outer periphery of the rod in the axial direction, and the rod is rotated at a predetermined angle. A guide groove for guiding the protrusion is provided so as to allow it inside.

  As a result, the amount of rotation of the rod is restricted to limit the predetermined width of the guide groove, so that even if the floor is slightly inclined or stepped, the two feet are stable with respect to the floor surface. Can be supported.

The article support member according to the present invention is characterized in that an adjuster for adjusting the height of the foot portion with respect to the floor surface is provided on the foot portion.

  Accordingly, even when one of the two feet does not contact the floor surface even at the rotation limit of the rod, both feet can be brought into contact with the floor surface by operating the adjuster. Support of the column can be ensured.

  In the present invention, a rod is integrally provided on the foot, and a rod guide hole is provided on the leg so as to support the rod so as to be rotatable around an axis. Each foot supported at two points can be brought into contact with the floor surface regardless of the inclination or level difference of the floor surface. As a result, the column can be stably supported with respect to the floor surface.

Next, an article support stand according to an embodiment of the present invention will be described with reference to the drawings.
1 is a partially cutaway front view of an article support stand according to the present invention, FIG. 2 is a plan view of legs and feet of the article support stand, and FIG. 3 is a plan view of legs and feet of the article support stand. FIG. 4 is a bottom view of the legs and feet, FIG. 5 is a cross-sectional view taken along line AA in FIG. 3, and FIG. 6 is a cross-sectional view taken along line BB in FIG. FIG.

The article support stand 1 according to this embodiment includes an article support member 2, a support column 3, a leg portion 4, and a foot portion 5.
Among these, the article support member 2 is attached to the upper end portion of the column 3. The article support member 2 is a display device on which a plurality of hook members 2a are attached, for example, in addition to a rotating chair, a stand for displaying or displaying an article such as a product, and a shelf. In addition, since the article support member 2 is used for the purpose of displaying or displaying products or the like, in addition to the T shape as described above, the article support member 2 may have a tree shape, a ring shape, or any other shape than illustrated. Can be adopted as appropriate.

  The hook member 2a is effective for displaying or displaying an article such as a product in a suspended state, but instead of the hook member 2a, for example, a fence plate support member for supporting a fence plate, a clip or the like It can also be used as a clamping member. Anyway, all the predetermined forms which can support articles, such as goods, are employable.

  The article support member 2 is made of, for example, a metal pipe, which is fixed to the upper end of a support column 3 also made of a metal pipe by welding or the like. The lower end of the column 3 is fixed to the center of three legs 4 as shown in FIGS. The central part of the three legs 4 is a support column support 6.

The column support part 6 has a column support hole 7 into which the lower end of the column 3 can be inserted, and a bolt hole 9 which communicates with the column support hole 7 and into which a bolt 8 can be inserted from the lower surface of the column support unit 6. Is formed.
The bolt 8 is passed through the bolt hole 9 from the lower surface of the column support plate 6 and screwed into the lower end of the column 3 inserted into the column support hole 7. In addition, the circumference | surroundings of the support | pillar 3 are covered with the cover 10 for hexagonal shape or circular cylindrical.

  Each leg portion 4 is provided with a rod guide hole 11 from the end portion toward the support column support portion 6 as shown in FIGS. The rod guide hole 11 is circular as shown in FIGS. Further, these leg portions 4 are provided with guide grooves 12 that open to the lower surface thereof along the rod guide holes 11.

  The rod guide hole 11 and the guide groove 12 communicate with each other as illustrated. The width of the guide groove 12 is smaller than the diameter of the rod guide hole 11, and has a dimension and a shape in which a protrusion provided on the rod described later can be rotated by a predetermined amount. This shape gradually expands toward the open end as shown in FIG. Each leg portion 4 is formed with a washer insertion groove 13 having a predetermined depth from the lower surface thereof to the vicinity of the base portion of the rod guide hole 11.

The two legs 5 are substantially “C” -shaped when viewed from above , and are shown in FIGS. 2 and 3 with respect to the center lines of the rods projecting from these legs 5 as described later. They are arranged symmetrically as shown. An adjuster 14 for adjusting the height of each tip portion from the floor surface is attached to the bottom surfaces of these tip portions.

  A high-rigidity rod 15 projects from the foot 5 on the side connected to the leg 4. The rod 15 has an outer diameter dimension that is slidable in the rod guide hole 11, and a ring groove 16 is formed in the vicinity of the tip. A split washer 17 inserted into the washer insertion groove 13 from the lower surface side of the leg portion 4 is fitted in the ring groove 16. For this reason, the rod 15 is in the rod guide hole 11 and can be rotated, but the movement in the axial direction is restricted.

In addition, a single protrusion 18 is integrally provided on the outer periphery of the rod 15 in the longitudinal direction, and the protrusion 18 is inserted into the guide groove 12 in the leg portion 4.
A dust cover 19 is interposed between the end surface of the leg portion 4 and the end surface of the foot portion 5 to prevent dust and the like from entering between them. As a result, it is possible to prevent the sliding of the rod 15 with respect to the rod guide hole 11 from worsening due to the adhesion of dust or the like.

Next, the function of the article support stand configured as described above will be described.
The case where this article support stand is used for displaying merchandise will be described as an example. First, an article support stand is assembled and installed on a floor in a store or the like. This assembly is easily performed by establishing the support column 3 for the leg portion 4 in which the foot portion 5 is assembled in the above-described structure.

  That is, the rod 15 of the foot 5 is inserted into the rod guide hole 11 of the leg 4 such that the protrusion 18 is guided into the guide groove 12. Subsequently, the split washer 17 is inserted into the washer insertion groove 13. For this reason, the inner peripheral portion of the split washer 17 is fitted into the ring groove 16 at the end of the rod 15.

  For this reason, the rod 15 is rotatable within a predetermined range in the rod guide hole 11 but does not move in the axial direction. If necessary, a jig for preventing the split washer 17 from coming out of the washer insertion hole 13, such as a stop pin or a stopper plug, can be fitted into the washer insertion groove 13.

Next, the lower end of the column 3 is inserted into the column support hole 7 of the leg 4. The bolt 8 is inserted into the bolt hole 9 from the lower surface of the leg 4, and the bolt 8 is screwed into a screw hole (not shown) formed in the lower end portion of the column 3.
As a result, the support column 3 is established straight on the support column support 6 of the leg 4, and the article support member 2 at the upper end of the support column 3 is used to hang clothing or the like by using the hook 2a. Can be exhibited.

On the other hand, the article support stand 1 assembled in this way is supported on the floor by the three legs 4 and the six legs 5. At this time, if there is extreme slope or steps on the floor, in any of the legs 4, since one or both of the two legs 5 which may be floated from the floor, usually flat floor Used in.

In the embodiment of the present invention, the weights of the article support member 2, the commodity supported by the article, the column 3, and the leg 4 act on the foot 5 to force the foot 5 to float up to the floor surface. Press on. By this pressing, the foot 5 is supported evenly load respectively.

For this reason, excessive stress is not exerted on either the leg part 4 or the foot part 5. As a result, the two feet 5 come into contact with the floor surface with equal pressure via the adjuster 14. Such an operation is similarly performed for the two legs 5 of the other legs 4.

Incidentally, stable Such operation all foot 5 by adjusting the adjuster 14 after contacting the floor surface, for example when changing the Installation position of the article support stand 1, the article support stand on the floor It works effectively when supporting it .
For this reason, the amount of rotation of the rod 15 in the rod guide hole 11 is regulated by the small width of the guide groove 12 in which the protrusion 18 is interposed. That is, in the guide groove 12, the rod 5 is configured to be rotatable only within a range in which the protrusion 18 can move.

As described above, in the embodiment, the rod 15 is integrally provided on the foot 5, and the rod guide hole 11 that supports the rod 15 so as to be rotatable around the shaft is provided on the leg 4. Each foot portion 5 that supports 4 with respect to the floor surface is in contact with the floor surface at an equal pressure regardless of the inclination or level difference of the floor surface.
For this reason, the article support stand is stably established without falling on the floor.

  The stable support leg structure such as the article support stand or the swivel chair of the present invention automatically and reliably supports two feet on the floor surface when there is a slight inclination or step on the floor surface. Supporting articles used for display and display of articles such as exhibits and products, which can prevent tilting and falling of the pillars, and can stably display and display products etc. by the article support section. It is useful as a stable support leg structure such as a stand or a swivel chair.

It is a front view which shows a partially broken article support stand according to an embodiment of the present invention. It is a top view which shows the leg part and leg | foot part in this invention. It is a front view which shows a leg part and a foot part vicinity in the present invention, and is partially broken. It is a bottom view which shows the leg part and foot | leg part in this invention. It is sectional drawing in the AA of FIG. It is sectional drawing in BB of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Article support stand 2 Article support part 3 Support | pillar 4 Leg part 5 Foot part 11 Rod guide hole 12 Guide groove 14 Adjuster 15 Rod 16 Ring groove 17 Split washer 18 Projection

Claims (4)

A column having an article support member at the upper end,
Three legs that are arranged at substantially equal intervals around the lower end of the column;
Rotates around the center line with respect to the circular rod guide hole provided in each leg
Two legs that have a rod inserted in a possible manner and support the tip of each leg with respect to the floor surface at two points that are symmetrical with respect to the axis of the rod;
Stable support legs structure such as the article support stand or swivel chair, characterized in that it comprises a. The article support stand according to claim 1, wherein the rod is provided with a ring groove, and the leg portion is provided with a split washer that is fitted into the ring groove to prevent the rod from coming off. Or a stable support leg structure such as a swivel chair.   A protrusion extending in the axial direction is provided on the outer periphery of the rod, and a guide groove for guiding the protrusion is provided on the leg portion so as to allow the rod to rotate within a predetermined angle. The stable support leg structure such as an article support stand or a rotary chair according to claim 1. 2. The stable support leg structure according to claim 1, wherein the foot is provided with an adjuster for adjusting the height of the foot relative to the floor surface.

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