JP2894462B2 - Shelf mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locked portion which is externally fitted to a column and is locked by a locking portion formed on the outer surface of the column so as to prevent downward movement. The present invention relates to a shelf mounting device provided with a tubular member provided and configured to attach a shelf member to the tubular member.

[0002]

2. Description of the Related Art In such a shelf mounting apparatus, conventionally, as shown in FIG. 8, a tubular member 11 is integrally formed of an elastic body made of resin, and the tubular member 11 is cut at one position in a vertical direction. A notch 19 is formed in the cylinder member 11 in the cylinder wall on the opposite side of the cutting portion in the radial direction in the vertical direction so as to be thinner than the periphery (for example, see Japanese Patent Application Laid-Open No. 62-82908). . That is, the cylindrical member 11 applies a force in a direction of pulling each of both ends of the cutting portion outward, thereby forming the cut 1.
9 can be opened around the swing center, and when the force is removed, the cylinder member 11 can be closed by the elastic force of itself.

[0003]

However, in the above-mentioned prior art, the cylindrical member is always biased in the closing direction regardless of the opening amount of the cutting portion.
When attaching the tubular member to the column, the worker needs to attach the tube member by pulling both ends of the cut portion outward with both hands to a predetermined position on the column in an externally fitted state, and then releasing both hands. There is. Therefore, there is a problem that the workability is poor when the cylindrical member is mounted on the support. The present invention
It is made in view of such a situation, and the purpose is
An object of the present invention is to provide means capable of solving the problems in the prior art as described above.

[0004]

According to a first characteristic configuration of the shelf mounting device according to the present invention, the cylindrical member is configured to be openable and closable about a hinge portion along the longitudinal direction of the support column as a swing center. Closed position holding means for holding the cylindrical member in a closed state is provided on the cylindrical member, and the closed position holding means does not urge the cylindrical member in the closing direction when the cylindrical member is opened by a predetermined amount. The point is that it is configured.

[0005] A second characteristic configuration is that the closed position holding means positions a projecting and elastically deformable holding member at both ends along the circumferential direction of the cylindrical member and changes the projecting direction. Both ends are pivotally fixed to the pair of wall portions in a state in which the tube members are directed outward and are positioned over a pair of wall portions of the cylinder member connected by the hinge portion. The point is that it is configured by connecting.

A third characteristic configuration is that the cylindrical member is integrally formed of resin with the closed position holding means.

[0007]

According to the first characteristic configuration, the cylinder member is opened in advance with the hinge portion as the swing center and the opening amount is set to a predetermined amount or more. And the tubular member can be kept open. When the opening amount is set to be equal to or less than the predetermined amount in a state where the cylindrical member maintained in the open state is positioned at the predetermined position of the support, the closed position holding unit urges the cylindrical member in the closing direction. Thus, the tubular member can be held in the closed state by the closed position holding means and can be mounted on the column.

According to the second characteristic configuration, in a cross-sectional view of the tubular member, an imaginary line connecting each of the pivotal connection points between both ends of the holding member and each of the pair of walls is formed with respect to the hinge portion relative to the hinge portion. The closed position holding means is in a state where the closed position holding means holds the cylindrical member in a closed state in a state where it is present on the inner side and no force for elastically deforming the holding member acts. Then, when the pair of wall portions of the cylindrical member are opened with the hinge portion as the swing center, as the opening amount increases, the imaginary line moves from the state in which the imaginary line is located on the inner side of the hinge portion with respect to the hinge portion. Moving in a direction approaching the portion, the interval between the pivot connection points increases, and at the point where the opening amount becomes a predetermined amount, the hinge portion is located on the imaginary line, and the interval is When the opening amount exceeds the predetermined amount, the imaginary line is located outside the cylinder with respect to the hinge portion, and the interval decreases. That is,
Until the opening amount of the cylindrical member reaches the predetermined amount, the holding member is in a state in which a force for elastically deforming in the extension direction acts on the holding member, and the closed position holding unit is in a state of urging the cylindrical member in the closing direction. After the opening amount of the cylindrical member reaches the predetermined amount or more, the force acting on the holding member in the extension direction is released and the holding member returns to its original shape, so that the closed position holding means is This is a state in which the member is not urged in the closing direction, and when the holding member returns to the original shape, the closed position holding means is in a state of maintaining the tubular member in the open state. Therefore, in advance, the cylinder member is opened with the hinge portion as the swing center and the opening amount is set to a predetermined amount or more, so that the closed position holding means does not bias the cylinder member in the closing direction, and the cylinder member is opened. It can be kept open. When the opening amount is set to be equal to or less than the predetermined amount in a state where the cylindrical member maintained in the open state is positioned at the predetermined position of the support, the closed position holding unit urges the cylindrical member in the closing direction. Thus, the tubular member can be held in the closed state by the closed position holding means and can be mounted on the column.

According to the third characteristic configuration, the cylindrical member in the shelf mounting device having the above-described first characteristic configuration or the second characteristic configuration is made of an elastically deformable resin and provided with the closed position holding means. Molded integrally.

[0010]

According to any of the first and second characteristic configurations, the cylindrical member can be held on one hand and can be easily and simply mounted on the column by one touch. The problem that the workability of mounting the member on the support is poor can be solved. Further, according to the third characteristic configuration, it is possible to solve the above-mentioned conventional problems and to provide a low-cost shelf mounting device.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 6 shows the entire structure of a movable shelf provided with the shelf mounting device according to the present invention. Numeral 3 in the figure denotes a shelf member having a square planar shape, which is provided with the shelf mounting device 1 at four corners.
The shelf member 3 is horizontally attached to the four pillars 2 by locking the four shelf mounting devices 1 to the four pillars 2 at the same height. . In this manner, the shelf members 3 are attached to the four columns 2 in a plurality of stages (five stages in this embodiment), and casters 5 are provided below each of the four columns 2. Thus, a movable shelf is configured.

Next, the shelf mounting device 1 will be described with reference to FIGS.

Reference numeral 11 in FIG. 1 and FIG. 2 denotes a ring-shaped concave portion 21 which is externally fitted to the column 2 and is formed on the outer surface of the column so as to prevent downward movement. A cylindrical member provided with a ring-shaped convex portion 12 as a locked portion to be locked,
By locking the ring-shaped protrusion 12 with the ring-shaped recess 21 of the support 2, the cylindrical member 11 attached to the support 2 is
The shelf mounting device 1 is configured such that the outer cylinders 31 attached to the four corners of the shelf member 3 are fitted in an externally fitted state.

As shown in FIG. 3, the outer peripheral surface of the cylindrical member 11 is a conical surface with a reduced diameter on the upper side, and the inner peripheral surface is a cylindrical surface with an inner diameter corresponding to the outer diameter of the column 2. The inner peripheral surface is provided with a ring-shaped convex portion 12 extending in the circumferential direction, and is integrally formed of an elastically deformable resin.

The outer cylindrical body 31 is formed of a cylindrical body having a reduced diameter on the upper side to be closely fitted to the cylindrical member 11, and based on the outer fitting,
The shelf member 3 is attached to the tubular member 11.

As shown in FIG. 3, the cylindrical member 11 is cut in the longitudinal direction of the column 2 in a state where the concave and convex engaging portions 13 and 14 are provided at two different heights. Further, a pair of cut-outs 11a in a penetrating state are formed along the circumferential direction on the cylindrical wall of the cylindrical member 11 near the radially opposite side to the cut portion, and ends of the pair of cuts 11a, 11a are respectively formed. A pair of linear thin portions 11b, 11b is formed by making a cut from the inner peripheral side of the cylindrical wall to the middle of the cylindrical wall in a state of being tied and along the longitudinal direction. In addition, a linear cut is made from the inner peripheral side of the cylindrical wall to the middle of the cylindrical wall from the upper end and the lower end of the cylindrical member 11 in a state of vertically contacting the center of each of the two cuts 11a. Is formed along the longitudinal direction.

By forming the cylindrical member 1 as described above,
By applying a force from a closed state as shown in FIG. 3 to a state in which the cutting section is opened, the thin section 11c can be freely opened and closed around a swing center, and the opening amount of the cutting section is set to a predetermined amount. With the above, the configuration is such that the open state as shown in FIG. 4 can be maintained. Thus, the thin portion 11c functions as a hinge along the longitudinal direction of the column 2, and has a pair of walls 15A and 15B of the cylindrical member 11 connected by the hinge 11c.

Next, the opening and closing operation of the tubular member 11 will be described with reference to FIG. (A), (b), and (c) in FIG.
Each is a plan view of the tubular member 11.

FIG. 5A shows a pair of thin portions 11b, 1b.
An imaginary line L connecting each of the wall portions 1b is located on the inner side of the cylinder with respect to the hinge portion 11c, and the cylindrical wall portion 16 is connected to the pair of wall portions 15A and 15B by the pair of thin portions 11b and 11b, respectively. Is in a state where the force for elastic deformation does not act on
The state where the cylindrical member 11 is held in the closed state is shown.

From the state shown in FIG. 5A, when a force is applied to the pair of walls 15A, 15B in the directions of arrows A, A at the cutting portion, the cylindrical member 11 causes the hinge 11c to move. As the opening amount increases, the virtual line L moves from the state in which the imaginary line L is located on the inner side of the cylinder with respect to the hinge portion in a direction approaching the hinge portion 11c, and a pair of The interval D between the thin portions 11b, 11b increases. That is, in this state, a force acts on the cylindrical wall portion 16 in the extending direction, and the cylindrical member 11 is urged in the closing direction by the reaction.

Then, as shown in FIG. 5B, at the point where the opening amount reaches the predetermined amount, the hinge portion 11c is located on the imaginary line L, and the interval D is maximized.
Further, after the opening amount exceeds the predetermined amount, the virtual line L is located outside the cylinder with respect to the hinge portion 11c, and the interval D is reduced. That is, the cylindrical wall portion 16 is in a state where the force acting on the expanded state is released and returns to the original shape, the cylindrical member 11 is not urged in the closing direction, and the cylindrical wall portion 16 is in the original shape. 5 (c) and as shown in FIG. 4, the cylindrical member 1
1 is the state that is maintained in the open state

Accordingly, the cylindrical wall portion 16 functions as a holding member which is bent and elastically deformable, and the pair of thin portions 11b, 11b are respectively connected to both ends of the cylindrical wall portion 16 by a pair of wall portions 15A. , 15B function as pivot connection points.

That is, when the cylindrical member 11 is held closed and the cylindrical member 11 is opened by a predetermined amount, the closed position holding means 17 acting to prevent the cylindrical member 11 from being biased in the closing direction is projected. The bending and elastically deformable holding member 16 is positioned at both ends along the circumferential direction of the tubular member 11 and the projecting direction thereof is directed outward of the tubular member 11, and the hinge portion 11 c In a state of being positioned over the pair of wall portions 15A, 15B of the cylindrical member 11 connected by the two ends, both ends thereof are connected to the pair of wall portions 15A, 15B.
It is constituted by being pivotally connected to B.

In the above-described configuration, the cylindrical member 11 is integrally formed of elastically deformable resin with the closed position holding means 17 provided.

Next, a description will be given of a method of attaching the shelf member 3 to the column 2 using the shelf attaching apparatus 1 configured as described above.

That is, at a plurality of positions (different positions in the vertical direction) on the outer peripheral surface of the column 2, a ring-shaped concave portion 21 which engages with the ring-shaped convex portion 12 on the inner peripheral surface of the cylindrical member 11 is formed. Then, as shown in FIG. 4, the cylindrical member 11 maintained in the open state with the opening amount being equal to or more than a predetermined amount is replaced with a concave portion having an appropriate height selected from a plurality of ring-shaped concave portions 21 formed on the outer peripheral surface of the column 2. In a state where the ring-shaped convex portion 12 on the inner peripheral surface of the cylindrical member 11 is located at a predetermined position of the support column 2 so as to engage with the concave and convex, the opening amount is set to a predetermined amount or less. It is urged in the closing direction and can be mounted on the column 2. Then, as described above, the shelf member 3 is mounted at an appropriate height of the column 2 by dropping the outer cylinders 31 attached to the four corners of the shelf member 3 from above from the cylindrical member 11 mounted on the column 2. It is.

Next, another embodiment will be described.

Another embodiment will be described with reference to FIG. The tubular member 11 is cut linearly along the longitudinal direction of the column 2, and the tubular wall of the tubular member 11 near the radially opposite side to the cut portion has a thin wall as a hinge along the longitudinal direction. By forming the portion 11c, the thin portion 11c can be freely opened and closed about the swing center. The thin portion 11c is formed so as not to have elasticity.

Further, at one end of the cut portion, there is formed a convex portion 18A having a front circular cross-sectional shape, and the other end has a cross-sectional shape corresponding to the convex portion 18A. A rear circular concave portion 18B is formed. That is, the concave portion 18B
By applying a force in the direction in which the convex portion 18A is inserted into the concave portion 18B, a pair of wall portions 18C
Both are elastically deformed outward, so that the convex portion 18A is fitted inside the concave portion 18B, and the tubular member 11 can be held in a closed state. In this state, by applying a force in the opening direction of the cut portion, the pair of wall portions 18C, 18C on both sides of the concave portion 18B are elastically deformed outward, so that the convex portion 18A can be pulled out of the concave portion 18B. In this state, the cylindrical member 11 is not urged in the closing direction. Therefore, the closed position holding means 17 includes the convex portion 18A, the concave portion 18B, and the pair of wall portions 18C, 18C.
Function as Reference numeral 12 denotes a ring-shaped convex portion as a locked portion which is locked to a ring-shaped concave portion 21 formed on the outer surface of the column 2.

In the above-described embodiment, the case has been described in which the width of the support column 2 of the holding member 16 in the longitudinal direction is formed to be equal to the interval between the pair of cuts 11a, 11a. The 16 columns 2 may be formed such that the width in the longitudinal direction is smaller than the interval between the pair of cuts 11a.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view of a shelf mounting device according to the present invention.

FIG. 2 is a perspective view of a shelf mounting device according to the present invention.

FIG. 3 is a perspective view of a tubular member in the shelf mounting device according to the present invention.

FIG. 4 is a perspective view of a tubular member in the shelf mounting device according to the present invention.

FIG. 5 is a view for explaining the opening and closing operation of a tubular member in the shelf mounting device according to the present invention.

FIG. 6 is a perspective view showing the entire configuration of a moving shelf to which the shelf mounting device according to the present invention is applied.

FIG. 7 is a perspective view of a tubular member in another embodiment of the shelf mounting device according to the present invention.

FIG. 8 is a perspective view of a tubular member in a conventional shelf mounting device.

[Explanation of symbols]

 2 Support 3 Shelf member 11 Tube member 11c Hinge part 12 Locked part 15A, 15B Wall 16 Holding member 17 Closed position holding means 21 Locking part

Claims (3)

(57) [Claims] An engaged member which is externally fitted to a column (2) and locked by a locking portion (21) formed on an outer surface of the column (2) so as to prevent downward movement. A shelf mounting device provided with a tubular member (11) having a stop (12), and configured to attach a shelf member (3) to the tubular member (11), wherein the tubular member (11) is A closed position holding means (17), which is configured to be openable and closable around a hinge portion (11c) along the longitudinal direction of the column (2) as a swing center, and holds the cylindrical member (11) in a closed state, A member (11) is provided, and when the closed position holding means (17) opens the cylinder member (11) by a predetermined amount, the cylinder member (1) is opened.
1) A shelf mounting device configured so as not to bias 1) in the closing direction. 2. The closed position holding means (17) positions a projecting and elastically deformable holding member (16) at both ends along the circumferential direction of the tubular member (11); A pair of wall portions (15A), (15) of the cylindrical member (11) connected by the hinge portion (11c) with the projecting direction directed outward of the cylindrical member (11).
The shelf mounting device according to claim 1, wherein both end portions are pivotally connected to the pair of wall portions (15A) and (15B) in a state where the shelf mounting portion is positioned over B). 3. The shelf mounting device according to claim 1, wherein said tubular member is integrally formed of resin with said closed position holding means.