JPH11299599A - Attaching angle adjuster - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an attaching angle adjuster which can freely selectively fix the attaching angle of a rack board by being interposed between a strut and the attaching part of the rack board and further can be sufficiently immune to a rotation moment to be generated around a supporting section by the load imposed on the rack board. SOLUTION: Concerning an attaching angle adjuster 5 interposed between a rack board 3 and a strut 4 for attaching this rack board 3 so as to adjust an attaching angle (α) of the rack board 3, this adjuster is composed of a first member 10 having a strut fixing part 1 and a second member 2, which is joined oppositely to the first member 10 and fixed on the side of the rack board 3, and formed by providing positioning parts 12 and 22 to be engaged at every prescribed angle β in the direction of the attaching angle α of the rack board 3 on the respective joined faces adjacent to each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting angle adjuster which can freely change and adjust the mounting angle of a shelf for displaying or storing goods such as shoes, clothing and food, and other articles. .

[0002]

2. Description of the Related Art Conventionally, shoes, ornaments, foodstuffs and the like to be displayed at a store are provided by mounting an angle 2 to a support fixture 1 as shown in FIG. After fixing with a screw B4 and a nut N4, furthermore, as shown in FIG. 18, the column holder 1a rotating around the fulcrum 1c of the column fixing device 1 is loosened by opening the button bolt 1b, and after fitting into the column 4, Y In the direction of the button bolt 1b
Is returned in the X direction, and by tightening the button bolt 1 b, the column 4 is pressed and clamped, and the shelf 3 is fixedly supported on the column 4.

[0003] The shelf 3 may support only one side as shown in FIG. 19 (a), or may support both ends as shown in FIG. 19 (b). Various kinds of products such as shoes and decorations are displayed on the shelf 3.

[0004]

However, since the shelf plate 3 is directly attached to the support fixture 1, the support plate 4 is not used.
The relative position between the shelf plate 3 and the shelf plate 3 is determined in one state by the positional relationship between the fixing hole H1 provided in the support fixture 1 and the screw hole H2 of the angle 2, and the shelf plate 3 is mounted horizontally. The angle becomes constant.

[0005] For this reason, although the height of the viewpoint of the customer who views the exhibit is substantially constant, the angle of the shelf 3 is constant, so that the upper exhibit can be seen only on the side or the lower side. In addition, the lower display can only be seen from the top, and even if the same type of display is exhibited, the angle at which the customer looks at these displays will be different, so the appearance will be poor, and There is a problem that the height is limited to a certain range.

Further, as shown in FIG. 16, the mounting angles of the shelves 3 are changed by angles αa and αb to
In order to fix b, it is necessary to prepare the angle 2 in which the positional relationship between the fixing hole H1 and the screw hole H2 of the angle 2 is changed by the number of changed angles, so that the number of parts increases. In addition, it is necessary to assemble the display shelves while determining these components at the time of work, which causes a problem that the assembling work becomes complicated.

In addition, once the mounting angle θ is determined and the display shelf is assembled, if the angle θ of the shelf plate 3 is to be changed, the screw hole H2 corresponding to the new angle θ is renewed.
There is a problem that it is necessary to prepare an angle provided with, replace it, and reassemble it. SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an object of the present invention is to freely select a mounting angle of a shelf by being interposed between a column and a mounting portion of a shelf. Can be fixed
Moreover, it is an object of the present invention to provide a mounting angle adjuster capable of sufficiently withstanding a rotational moment around the supporting portion caused by a load applied to the shelf.

[0008]

(1) A mounting angle adjuster according to the present invention is provided between a shelf and a support for mounting the shelf, and adjusts the mounting angle of the shelf. An adjusting tool, comprising: a first member having a column fixing portion; and a second member fixed to the shelf side by face-to-face bonding with the first member, and A positioning portion is provided which engages at predetermined angles with respect to the mounting angle direction of the shelf board.

The mounting angle adjuster of this configuration is mounted on the support by the support fixing portion of the first member, and is positioned at a predetermined angle between the support and the angle at which the shelf plate is mounted, ie, the mounting portion. Since the mechanism for adjusting and setting the angle is interposed, the mounting angle of the shelf can be selected from a predetermined mounting angle, and the shelf can be mounted on the column. In this assembly work, even if the mounting angle is various,
Since only one kind of mounting angle adjuster is required, there is no increase in the number of parts and no complicated operation.

[0010] Then, the shelves can be mounted at an optimum angle in accordance with the display item and the display position, so that an effective product can be displayed to the customer. Changes can be made easily. (2) Further, the column fixing portion of the first member may be detachably formed from the first member.

With this configuration, even when the pillars have different thicknesses, it is sufficient to prepare only the pillar fixing portions corresponding to the thicknesses, and a common first member separated from the pillar fixing portions can be used. Therefore, it is possible to reduce the cost by preparing several types of inexpensive column fixing portions, and the first member and the second member that are commonly attached to and detached from these portions.

In these arrangements, the center of rotation when the engagement is changed at every predetermined angle must always be within the joint surface, for example, when the first member and the second member are formed in a fan shape. Although it is not provided, it is preferable to form the joint so that the center of rotation is present in the joining surface, and to further configure as follows.

(3) The joining member for joining the first member and the second member is operated from the shelf side of the second member to move the second member away from the first member. The connector is arranged on the rotation center line at the time of the rotational engagement so that the connector can be rotated at a predetermined angle, and the connector is disposed on the shelf side of the second member. .

With this structure, the mounting angle of the shelf can be easily changed by simply operating the connector while the first member is mounted on the support and the second member is mounted on the shelf. can do. (4) The positioning portion is radially arranged at a predetermined angle from a substantially center of the joint surface, and is a convex portion provided on one joint surface and a concave portion provided on the other joint surface. And formed. (5) In addition, the positioning portion has an engagement protrusion provided on one joint surface and an engagement hole provided on the other joint surface at each of the predetermined angles for engaging with the engagement protrusion. It is formed with a part.

In this case, the number of the engagement projections and the number of the engagement holes may be made equal to each other. However, if the strength is acceptable, the number of the engagement projections may be reduced. Thereby, the mold of the mounting angle adjuster has a simple shape. (6) Alternatively, the positioning portion is formed of a crown-shaped gear-shaped uneven portion provided radially and alternately adjacent to both the joining surfaces at equal intervals in the circumferential direction.

In this case, the corrugated gear-shaped uneven portion may have a continuous shape of triangular peaks and valleys, and may have a shape in which square teeth, ie, valleys having the same shape as trapezoidal or square peaks are adjacent and continuous. You may. Due to this continuous uneven portion, the minimum changeable angle is reduced. As described above, since the concave and convex engaging portions are provided at the portions to be joined face to face, the force opposing the rotational moment applied to the support portion of the shelf plate becomes large, so that it can sufficiently withstand a large rotational moment. Can be.

The joining surface may be provided in parallel with the direction of the mounting angle of the shelf, that is, on a surface perpendicular to the rotation axis on which the shelf rotates, but it is not necessarily provided in the vertical plane. It may be formed by a conical surface having a vertex at the center of rotation of the angle or a slope of a truncated cone, and in some cases, may be formed by a cylindrical surface having a rotation axis as a center. In this case, the positioning portion has a relationship between the external teeth and the internal teeth. (7) The first member and the second member are provided with a lightening hole and / or a holding hole for a connector used for assembling the mounting angle adjuster and mounting on the support column side and the shelf side, except for the positioning portion.
The member is formed so as to open to the joint surface side.

According to this configuration, the opening of the lightening hole or the holding hole of the connector becomes invisible from the outside after the assembling is completed, and the connector such as the nut is also hidden in the connection portion. The appearance is clean and the appearance is improved.

[0019]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a mounting angle adjuster according to the present invention. Figure 1
As shown in FIG. 4 and FIGS. 5 to 15 in detail, the mounting angle adjuster 5 according to the present invention is made of a synthetic resin or metal,
A first member 10 comprising a column fixing portion 1, a cylindrical portion 11, and a plate portion 18 fixed to the side, and a second member 20 fixed to the shelf 3 side while being face-to-face bonded to the first member. Become.

In FIGS. 1 to 15, the support column fixing portion 1 is formed so as to be detachably separated from the first member 10 and is formed as a separate body, but may be formed integrally. By this integration, the number of parts can be reduced and the number of assembly steps can be reduced. Then, the joining surface 11a of these first members 10
And each of the joining surfaces 21a of the second member 20 in contact therewith,
Positioning portions 12 and 22 are provided which engage with each other at a predetermined angle β with respect to the mounting angle α direction of the shelf 3.

[First Member] That is, the first member 10 comprises a cylindrical portion 11 and a plate portion 18 extending from the back surface thereof, as shown in FIGS. On the joining surface 11a of the member 10, a mountain-shaped convex portion 12 as a first positioning portion is provided at a predetermined angle β (15 in FIG. 5) from the center of the joining surface 11a.
Are formed radially at an interval of (degree).

In the center of the first member 10, the first member 10
A bolt hole 17 of a through hole is provided for a bolt B2 for joining and fixing the second member 20 to the second member 20, and a nut holding hole 17a for holding a nut N2 screwed to the bolt B2 is opened in the back surface 11b. Further, a guide portion 14 is provided to protrude around the bolt hole 17 of the first member 10 for guiding the joining.

When the column fixing portion 1 is detachably formed from the first member 10, as shown in FIG. 1, the column fixing portion 1 and the rear surface 11b of the cylindrical portion 11 are separated and formed. A screw through hole 15 having a dish portion 15a opened on the joint surface 11a is provided so as to be in contact with the portion 1 and fixed with the screw B1. In addition to the holes 15 and the positioning portions 12, a lightening hole 16 from the joint surface 11a and a lightening hole 19 from the back surface 11b are provided to facilitate molding with a mold.

[Second Member] Next, the second member 20 to be joined to the second member 10 will be described in detail with reference to FIGS.
The second member 20 has a joining surface 21a formed of a cylindrical portion 21.
A mountain-shaped concave portion 22 as a second positioning portion that engages with the first positioning portion 12 is provided at the same angle β as that of the first positioning portion 12, and the first positioning portion 12 and the second The positioning portion 22 is engaged so that the joining surface 11a and the joining surface 21a are joined.

FIG. 13 shows the first member 10 and the second member
FIG. 2 is a cross-sectional view of a state in which the first member 10 and the second member 20 are interposed between the column fixing portion 1 and the angle 2;
The state where the joining surface 11a and the joining surface 21a are joined is shown. Further, a screw through-hole 25 having a nut holding portion 25a opened on the surface 21b is provided for fixing to the angle 2 which is a mounting portion of the shelf board with the screw B3 and the nut N3.

The first member is located at the center of the second member 20.
A bolt hole 24 for a bolt B2 for joining and fixing the 10 and the second member 20 is provided, and the guide portion 14 of the first member 10 is configured to fit into the bolt hole 24. That is, the first member 10 and the second member 20 are arranged from the shelf 3 side of the second member 20.
By operating a bolt B2 which is a joining tool for joining
The bolt B2 is arranged on the rotation center line at the time of rotational engagement so that the member 20 can be rotated at a predetermined angle β away from the first member 10, and the bolt B2 is connected to the shelf board of the second member 20. It is arranged and arranged on the 3 side.

For joining the first member 10 and the second member 20, instead of using the nut N2, a screw portion to be screwed to the bolt B2 may be formed in the first member 10 or the column fixing portion 1.
Further, the present invention is not limited to the screw engagement, and may be a fitting pin that expands in diameter using the elasticity of the synthetic resin, an engaging pin that engages by pressing and rotating. In addition, a lightening hole 26 is provided from the side of the joint surface 21a to facilitate molding with a mold.

That is, holes B1 and N2 for holding nuts N3, which are joining tools used for assembling the lightening holes 16, 26 and / or the mounting angle adjusting device and mounting them on the support column 4 side and the shelf plate 3 side.
15a, 25a, that is, the lightening hole and a part or all of the holding hole of the joining tool, the joining surface 10a of the first member 10 and the second member 20 except for the convex portion 12 and the concave portion 22 which are positioning portions, Open to 20a side.

[Assembly] When the above-mentioned mounting angle adjuster 5 is used, the shelf plate 3 is assembled to the support column 4 as follows.

As shown in FIG. 1, when the column fixing portion 1 is formed separately from the first member 10, the column fixing portion 1 is formed.
Is attached to the first member 10, and this attachment is
Is inserted into the nut holding hole 17a of the first member 10, and then the screw B1 is screwed into the screw hole H1.

Next, the second member 20 is rotationally displaced by a predetermined angle α on the first member 10 and the bolt B2 is connected to the nut N
2 and screwed together, and tighten the bolt B2 with a hexagon wrench to fix it. At this time, a nut N3 for fixing the angle 2 is inserted into the nut fixing hole 25a from the joint surface 21a side of the second member 20.

Then, the angle 2 is brought into contact with the second member 10, the screw B 3 is inserted into the screw through hole 25 of the second member 10 and screwed to the nut N 3, thereby connecting the angle 2 to the second member 10. Then, the shelf 3 is attached to the angle 2 with screws B4 and nuts N4.

Finally, as shown in FIG. 2, the column fixing portion 1 is fixed to the column 4, and the assembling is completed. As shown in FIG. 18, the column fixing portion 1 is attached to the column 4 by loosening the button bolt 1b and moving in the opposite direction to the arrow X, and furthermore, moving the column holder 1a around the fulcrum 1c with the arrow X. Rotate in the opposite direction to open it and fit it into the column 4. After the fitting, the column holder 1a is rotated and closed in the direction of arrow Y, the button bolt 1b is returned in the direction of arrow X, fitted into the notch groove of the column holder 1a, and the button bolt 1b is further tightened. Thus, the column holder 1a is pressed against the column 4, and the column 4 is clamped and fixedly supported together with the fixing portion 1d.

Alternatively, as shown in FIG. 3, a shelf plate 3A having a mounting portion 2A corresponding to the angle 2 is mounted with screws B3, and the column fixing portion 1 is fixed to the column 4.
Complete shelf assembly.

Further, the assembly of the angle 2, the support fixture 1, and the mounting angle adjuster 5 is turned upside down, and the shelf 3B is fixed from below with a screw B5 such as a wood screw. As shown in FIG. 4, by fixing the column fixing portion 1 to the column 4 in a normal state, the assembly of the shelf is completed.

After assembling once, the shelves 3, 3
When the angle θ of A and 3B is changed, the bolt B2, which is viewed from the screw hole 2h of the angle 2 from the shelf 3 side, is removed or loosened with a hexagon wrench, so that the joint surface 11 is changed.
a, the first positioning portion 12 and the second positioning portion 22 provided on the 12a
Is disengaged, rotated to a new predetermined angle α, the first positioning portion 12 and the second positioning portion 22 are engaged at a new position, and then the bolt B2 is attached and tightened. , Fix at a new angle. When the shelf 3 is supported at both ends as shown in FIG. 16B, this is performed at both ends.

[Other Embodiments] As another second embodiment of the positioning portions 12 and 22, as shown in FIG. 14, an engagement protrusion 12A provided on one joint surface 11a is provided. An engaging projection 12A provided on the other joining surface 21a at every predetermined angle β
Can be formed with the engagement hole portion 22A that engages with the hole.

In this case, the engaging projection 12A and the engaging hole 22
The number of A may be the same, but if strength is acceptable, the number of engagement protrusions 12A may be reduced. With this structure, the mold of the mounting angle adjuster 5 can be formed in a simple shape. Further, as another third embodiment of the positioning portions 12, 22, as shown in FIG. 15, both the joining surfaces 11a, 21a are alternately radially and circumferentially equally spaced (angle β). Corrugated gear-shaped irregularities provided adjacently
It can also be formed of 12B and 22B.

In this case, crown-shaped gear-shaped uneven portions 12B, 22B
The same shape can be adopted for the first positioning part 11 and the second positioning part 12. Further, the shape may be a continuous shape of triangular peaks and valleys, or a shape in which square teeth, that is, trapezoidal or square valleys and valleys of the same shape are adjacent and continuous. The minimum angle β that can be changed can be reduced by the continuous engagement of the concave and convex portions 12B and 22B.

In FIGS. 1 to 15, the joining surfaces 11a and 21a are provided in parallel to the direction of the mounting angle α of the shelf 3, that is, as surfaces perpendicular to the rotation axis on which the shelf rotates. It is not always necessary to provide them in parallel, and they may be formed by a conical surface or an inclined surface of a truncated cone having the vertex at the rotation center of the mounting angle, and in some cases, may be formed by a cylindrical surface having the rotation axis as the center. In this case, the positioning portions 12, 22 have a relationship between external teeth and internal teeth.

[Effects] According to the mounting angle adjusting tool 5 having the above-described configuration, the mounting angle adjusting tool 5 is simply interposed between the mounting portion 2 of the shelf board 3 and the support column 4, and the Can be selected from a predetermined angle (a multiple of β) to fix the shelf plate 3 to the column 4, so that the inclination α of the shelf plate 3 is set according to the customer's line of sight and the shelf Can be easily assembled, so that the exhibit can be displayed at an angle that is easy for the customer to see.

Further, by giving a change to the angle of the shelf 3, it is possible to add a change to an exhibition that tends to be monotonous, and it is possible to change from a flat feeling to a three-dimensional feeling. The decoration effect can be increased.

Further, the bolt B2 is arranged on the rotation center line when the first member 10 and the second member 20 are rotationally engaged, and
Since the member 20 is inserted from the shelf 3 side, the bolts B2 are loosened from the shelf 3 side of the second member 20, and the second member 20 is separated from the first member 10 so as to be separated by a predetermined angle β. By rotating to a new mounting angle α, the mounting angle α can be easily adjusted.
Can be changed. That is, by simply operating the bolt B2 with the first member 10 attached to the support column 4 and the second member 20 attached to the shelf 3 side, the attachment angle α of the shelf 3 can be changed very easily. can do.

In addition, the positioning portions 12 and 22 having irregularities are engaged with the surface joining portions, and the shelves 3
, That is, against the rotational moment in the direction of the mounting angle α, which is applied to the mounting angle adjuster 5, so that it can sufficiently withstand a large rotational moment.

Furthermore, screws B1 and nuts N3 holding holes 15a and 25, which are joining tools used for assembling the lightening holes 16 and 26 and the mounting angle adjuster, and mounting them on the column 4 side and the shelf 3 side, respectively.
a or a part of the convex portion 12 or the concave portion 22 as a positioning portion.
Are left open to the joint surfaces 10a and 20a of the first member 10 and the second member 20, so that the screw B1 and the holding hole 15a for the nut N3
25a and the opening portions of the lightening holes 16 and 26 become invisible from the outside after the assembly is completed, and the connecting member such as the nut N3 is also hidden by this connecting portion, so that the appearance of the mounting angle adjusting device is neat and beautiful. Is improved.

When the column fixing portion 1 and the first member 10 are formed separately, the lightening hole 19 of the first member 10 and the bolt hole 17a for holding the nut N2 are formed by the two members 1, 2. By providing an opening on the back surface 10b side of the first member 10 to which the first member 10 is joined, the number of lightening holes 19 can be increased while the appearance is further reduced, and the nut N2 can be held in a hidden state.

[0047]

As is apparent from the above description, according to the mounting angle adjusting device of the present invention, the mounting angle adjusting device is simply interposed between the column and the mounting portion of the shelf board.
Since the shelf plate can be fixed to the support by selecting the inclination angle of the shelf plate from a predetermined angle, the shelf can be easily assembled by setting the inclination of the shelf plate according to the line of sight of the customer. .

By changing the angle of the shelves, it is possible to change the display which tends to be monotonous, and to change from a flat feeling to a three-dimensional feeling. In addition, since any items placed on shelves having different heights can be displayed at an angle that is easy for the customer to see, the consumer's willingness to purchase can be promoted and the sales effect can be improved.

Further, the joining member for joining the first member and the second member is operated from the shelf board side of the second member, and the second member is separated from the first member and rotated at the predetermined angle. The connecting member is arranged on the rotation center line at the time of the rotational engagement and the connecting member is arranged on the shelf side of the second member so that the first member is attached to the column side. By simply operating this connector with the second member attached to the shelf, the mounting angle of the shelf can be changed very easily.

In addition, since a positioning portion is provided at the surface-joining portion to engage with the unevenness to oppose the rotational moment applied to the supporting portion of the shelf, it can sufficiently withstand a large rotational moment. be able to.

Further, a holding hole for a joining tool used for assembling a lightening hole and / or a mounting angle adjusting device and mounting the mounting member on the column side and the shelf side is provided with the first member and the second member except for the positioning portion. Since the two members are formed so as to open on the joint surface side, the opening of the lightening hole or the holding hole of the joint is invisible from the outside after the assembly is completed, and the joint such as a nut is hidden by the joint. Therefore, the appearance of the mounting angle adjuster is clear, and the appearance is improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a mounting angle adjuster according to the present invention and an assembly thereof.

FIG. 2 is a perspective view showing a mounting state of a shelf board using the mounting angle adjuster according to the present invention.

FIG. 3 is a perspective view showing a mounting state of another shelf board using the mounting angle adjuster according to the present invention.

FIG. 4 is a perspective view showing a mounting state of another shelf board using the mounting angle adjuster according to the present invention.

FIG. 5 is a top view of a first member of the mounting angle adjuster according to the present invention.

FIG. 6 is a partial side view as seen from a direction E in FIG. 5;

FIG. 7 is a view showing an XYZ section of FIG. 5;

FIG. 8 is a bottom view of FIG. 5;

FIG. 9 is a top view of a second member of the mounting angle adjuster according to the present invention.

FIG. 10 is a partial side view as viewed from a direction F in FIG. 9;

FIG. 11 is a view showing a UVW section of FIG. 9;

FIG. 12 is a bottom view of FIG. 9;

FIG. 13 is a cross-sectional view showing a joint state of a first member and a second member of the mounting angle adjuster according to the present invention.

FIG. 14 is a perspective view showing a second embodiment of the mounting angle adjuster according to the present invention.

FIG. 15 is a perspective view showing a third embodiment of a mounting angle adjuster according to the present invention.

FIG. 16 is a perspective view showing the relationship between the assembled shelves and the columns when the mounting angle adjuster according to the present invention is used;
(A) is a diagram of a shelf supported on one side, and (b) is a diagram of a shelf supported on both sides.

17A and 17B are perspective views showing support of a shelf board according to the related art, in which FIG. 17A is a view in which the shelf board is attached to a support fixture at an angle, and FIG. 17B is a view in which the shelf board is screwed to the angle;
(C) is the figure which attached the shelf board to the support | pillar.

FIG. 18 is a top view of the support fixture for explaining a method of fixing the support fixture.

FIG. 19 is a perspective view showing the relationship between the assembled shelf and the support in the prior art, and FIG. 19 (a) is a view of a shelf supported on one side,
(B) is a figure of the shelf board of both sides support.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Support part fixing part 2 Angle 3 Shelf 4 Support 5 Mounting angle adjuster 10 First member 11 Cylindrical part 11a Joining surface 12 First positioning part (concave recess) 12A First positioning part (engaging hole) 12B First positioning part (Coronal irregularities) 14 Guide part 15 Screw through hole 16, 19, 26 Lightening hole 17, 24 Bolt hole 17a, 25a Nut holding hole 20 Second member 21 Cylindrical part 21a Joining surface 22 Second positioning part (Central convex part) 22A 2nd positioning part (engaging projection) 22B 2nd positioning part (crown-shaped unevenness) 25 Screw through-hole B1, B5 Screw B2 Bolt B3, B4 Screw N2, N3, N4 Nut

Claims (7)

[Claims] 1. A mounting angle adjuster interposed between a shelf board and a support column to which the shelf board is mounted, the mounting angle adjustment tool adjusting a mounting angle of the shelf board, and a first member having a support column fixing portion; A second member which is face-to-face joined to the first member and fixed to the shelf side, and is engaged with each of the contact surfaces which are in contact with each other at a predetermined angle with respect to the mounting angle direction of the shelf. A mounting angle adjuster characterized by having a part. 2. The mounting angle adjuster according to claim 1, wherein the support fixing portion of the first member is detachably formed from the first member. 3. The first member from the shelf side of the second member.
By operating a connector for joining a member and the second member, the connector is rotated by the rotation engagement so that the second member is separated from the first member and can be rotated at the predetermined angle. The mounting angle adjuster according to claim 1 or 2, wherein the connector is disposed on a rotation center line at the time of the mounting, and the connector is disposed on the shelf side of the second member. 4. The positioning portion is provided on a convex portion provided on one joining surface and radially disposed at a predetermined angle from a substantially center of the joining surface, and is provided on the other joining surface. 2. The method as claimed in claim 1, wherein the recess is formed with a concave portion.
The mounting angle adjuster according to any one of claims 1 to 3. 5. The positioning portion has an engaging projection provided on one of the joining surfaces and an engaging hole provided on the other joining surface at each of the predetermined angles and engaging with the engaging projection. The mounting angle adjuster according to any one of claims 1 to 3, wherein the mount angle adjuster is formed with a part. 6. The positioning portion is formed of a crown-shaped gear-shaped uneven portion provided radially and alternately adjacent to both of the joining surfaces at equal intervals in a circumferential direction. The mounting angle adjuster according to claim 1. 7. The first member, excluding the positioning portion, is provided with a lightening hole and / or a holding hole for a connector used for assembling the mounting angle adjusting device and mounting the mounting angle adjusting device to the support column side and the shelf board side. The mounting angle adjuster according to any one of claims 1 to 6, wherein an opening is provided on the joint surface side of the second member and the second member.