JP7371971B2 - Support column that supports the opening/closing door of the opening on the shelf - Google Patents

Description

The present invention relates to a support that stably supports an opening/closing door (board) for opening/closing the front opening on the shelf of a multi-tiered display shelf for displaying products, and can smoothly open/close the opening/closing door (board).

2. Description of the Related Art In mass merchandisers, stores specializing in medicine and daily necessities, and the like, multi-tiered display shelves installed in front of walls are mainly used to display products. A multi-tiered display shelf is generally composed of four pillars and shelf boards installed in multiple levels above and below, and can display a large amount of products. In such a multi-tiered display shelf, a space is created between the top shelf board (top board) and the ceiling, and this space is used as a stocking area for replenishment products. For this reason, boards are installed to open and close the front openings on the shelves of multi-tiered display shelves, and stocked items are hidden from view during normal sales.

Japanese Patent Laid-Open No. 2000-140490 discloses that a low futon cover part (3) and a high futon cover part (4) are arranged at different levels on the top of a rectangular base (1) equipped with a pulley with a stopper (2) that rotates 360 degrees. A futon cover storage device that is provided in parallel and connects a low futon cover part and a high futon cover part with a joint part (5), and hangs a futon on the futon cover part, and a shelf (7) with an upwardly opening door is provided at the top; A futon cover storage device is disclosed in which the area other than the front side is surrounded by a side peripheral plate (8) and a curtain (9) is provided on the front side. Although JP 2000-140490 does not disclose the detailed structure of the shelf with a top-opening door (7), according to Figure 1 of the publication, by pulling the knob at the front of the door toward you, , the door can be opened upwards.

On the other hand, a pair of support columns 100 for supporting a shelf opening opening/closing door as shown in FIG. 21 is known. The support column 100 is attached to the front end above the top plate 101 of the multi-tiered shelf device, and is bent from the top plate locking part 104, the front upright part 105, and the upper end of the upright part 105. It consists of a horizontal part 106 extending rearward, and a rear vertical part 107 bent from the rear end of the horizontal part 106 and extending downward, and the upright part 105, the horizontal part 106, and the rear vertical part 107 are wire rods. The board 102, which is an opening/closing door that locks on the support column 100, has a board locking part 108 that locks on the support column 100 on the back side and on the top thereof. A locking hole is formed in the board locking portion 108, into which the support column 100 is fitted so as to be freely inserted therethrough. FIG. 21 shows the opening/closing door 102 in an open state, and stock products on the top plate 101 can be taken out. On the other hand, when closing the opening on the shelf, the board 102 is pulled out to the front, the board 102 is stood up, and the lower end 103 of the board is locked to the top board locking part 104. This hides the stocked products on the shelf (on the top board) and makes the product information displayed on the board visible to the customer.

JP-A-2000-140490 (Claim 2)

However, the shelf with a top-opening door disclosed in Japanese Patent Application Laid-open No. 2000-140490 does not disclose a method for fixing the door after opening. If the opened door cannot be fixed, it will be inconvenient to take out stored items. Furthermore, the door is attached to a frame formed of both side plates and a top plate, resulting in a large-scale structure and increased cost.

On the other hand, although the strut body 100 shown in FIG. 21 is advantageous in that it has a simple structure and is low in cost, when the board 102 is opened and closed, the pair of left and right struts are likely to move laterally, and the board locking portion 108 is locked. The frictional resistance between the hole and the wire strut was large, making the operation of opening and closing the door unstable and putting a burden on the worker.

Accordingly, an object of the present invention is to provide a pair of left and right support columns that support an opening/closing door of an opening on a shelf, allowing stable operations associated with opening and closing of a board serving as a door.

That is, the present invention solves the above-mentioned conventional problem, and supports a board-shaped door that opens and closes the front opening of a space on a shelf, and has a door on both sides whose lower end is fixed to the installation part. a fixed side support column in which a pair of symmetrical locking grooves or locking through holes are formed, and a pair of locking protrusions facing each other that loosely fit into the locking grooves or locking through holes at the rear upper part. A pair of left and right pillar bodies having a locking part for locking a board-shaped door in the front part, and a movable support part that locks and moves on the fixed side pillar part, and the fixed side pillar The locking groove or locking through hole of the part includes a long vertical portion extending in the vertical direction, a connecting portion that is continuous with the upper end of the long vertical portion and extends slightly rearward, and a connecting portion that is continuous with the rear end of the connecting portion and extends in the vertical direction. An irregularly shaped groove or irregularly shaped hole having an extending short vertical part, wherein the locking protrusion is capable of reciprocating from the lower end of the long vertical part to the lower end of the short vertical part via the connecting part. The purpose of the present invention is to provide a pillar body having the following characteristics.

Further, the present invention further includes a short horizontal part that is continuous with the lower end of the short vertical part and extends rearward, and the locking protrusion passes from the lower end of the long vertical part via the connecting part to the short horizontal part. The purpose of the present invention is to provide the above-mentioned support column, which is characterized in that it is reciprocally movable up to the rear end of the support column.

Further, the present invention provides the support column, wherein the movable support portion has upper left and right side plates, and the locking protrusion is attached to the inner surface of the upper left and right side plates. .

Further, the present invention provides the support column, wherein the movable support part is a medium-sized angular case with an open back surface having left and right side plates continuous with the upper left and right side plates, and a front side plate. It is something.

Further, the present invention provides the above-mentioned support column, characterized in that the fixed-side support section has a small protrusion extending upward at the upper end thereof.

Further, the present invention provides the above-mentioned support column, wherein the short lateral portion is a locking groove or a locking through hole that slopes slightly downward toward the rear.

Further, the present invention provides the above-mentioned support column, wherein the connecting portion has an upwardly curved radius.

Further, in the present invention, the locking protrusion locks the lower end of the short vertical portion, so that the movable support portion is located in front of the fixed side support portion, is supported substantially vertically, and has a board-like shape. The above-mentioned support column is characterized in that the door closes the front opening of the space above the shelf.

Further, in the present invention, the locking protrusion locks with the lower end of the long vertical portion, so that the movable support portion hangs down toward the shelf below, and the board-shaped door opens at the front of the space above the shelf. The present invention provides the above-mentioned support column characterized in that it can be opened.

Further, in the present invention, the locking protrusion locks on the rear end of the short lateral part, and the small protrusion comes into contact with the back surface of the front side plate of the movable support part, so that the movable support part is approximately The present invention provides the above-mentioned support column, which is in a horizontal position and has a board-shaped door that opens the front opening of the space above the shelf.

Further, the present invention provides the above-mentioned support column, wherein the board-shaped door has product information displayed thereon.

According to the present invention, the pair of protrusions extending in opposite directions of the movable support portion on the door side sandwich the pair of locking grooves or locking through holes formed on both surfaces of the fixed side support portion, which is the fixed side. Because it loosely fits and locks, operation is stable when opening and closing the board, which is the door.

FIG. 1 is a perspective view of a multi-stage display shelf in which support columns are installed according to the first embodiment of the present invention. FIG. 2 is a perspective view of the support column in FIG. 1; FIG. 3 is a side view of the support column in FIG. 2; FIG. 2 is an exploded view of a pair of struts in FIG. 1; (A) is a left side view of the fixed side support that constitutes the support body in Figure 2, (B) is a right side view of the fixed side support, and (C) is a cut taken along the X-X line in (B). FIG. FIG. 3 is a perspective view of a movable support part that constitutes the support column shown in FIG. 2, seen from the back side. FIG. 7 is a rear view of the movable support of FIG. 6; FIG. 2 is a side view of the support column of FIG. 1 in a state where the opening on the shelf is closed. FIG. 9 is a simplified diagram of a portion of the support column shown in FIG. 8 showing a locked state of the fixed side support section and the movable support section. FIG. 2 is a side view of the support column of FIG. 1 in a state where the opening on the shelf is open; FIG. 11 is a simplified diagram of a part of the support column shown in FIG. 10 showing a locked state of the fixed side support section and the movable support section. FIG. 2 is an overall view of the support column of FIG. 1 in a state where the opening on the shelf is open. FIG. 2 is a side view of the support column of FIG. 1 in another state with the opening on the shelf opened; (A) is a partial simplified diagram showing the locked state of the fixed side support portion and the movable support portion in the support body of FIG. 12, and (B) is a cross-sectional view taken along the Y-Y line in (A). It is a diagram. It is a perspective view of the support|pillar body in the 2nd Embodiment of this invention. FIG. 16 is an exploded perspective view of the support column shown in FIG. 15; FIG. 16 is an enlarged cross-sectional view of a part of the support column shown in FIG. 15; FIG. 16 is a diagram illustrating a method for adjusting the height of the support column shown in FIG. 15; It is a side view of a part of support column body in the 3rd embodiment of the present invention. FIG. 20 is a diagram illustrating a method of fixing the movable support part in the column body of FIG. 19; FIG. 2 is a perspective view of a support column supporting a conventional opening/closing door.

In this specification, "left and right", "up and down", and "front and back" refer to directions when the support body is installed and the board (door) is closed. In the present invention, the term "on a shelf" may be used as long as it is on a shelf on which products are displayed, and usually refers to the top shelf (top plate) of a multi-tiered display shelf. In this case, the space above the shelf refers to the space between the top shelf (top plate) and the ceiling. Multi-tiered display shelves used in mass merchandisers, stores specializing in medicine and daily necessities, etc. are usually stocked with replenishment products. The support column of the present invention is installed in the front part of this shelf and supports a board-shaped door. By closing the door, the stocked products are hidden, and when the stocked products are taken out, the door is closed. It opens the door and keeps it open. Note that product information is usually displayed on the surface of the board-shaped door.

Next, a support column according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 13. The support column 10 is installed in the front part of the top shelf 22f of the seven-stage product display shelf 20, and opens and closes the front opening of the space 40 above the shelf. Although the board-shaped door 9 is depicted as transparent in FIG. 1, an opaque door is normally used. Further, a ceiling not shown in FIG. 1 is located directly above and close to the support column 10.

The support column 10 is made of resin and has a pair of left and right support sections, each having a fixed support section 2 whose lower end is fixed to the front end (installation section) of the top shelf 22f, and a movable support section 3 that is movable while being engaged with the fixed support section 2. It is something. Since the pair of left and right struts 10 have the same shape and the same function, only one of the struts 10 will be described.

The stationary support column 2 is a medium-sized member with a pair of symmetrical locking grooves 23A formed on both sides thereof. The height of the fixed support column 2 is approximately the same as the height of the door 9 because the movable support section 3 that supports the board-shaped door 9 fits therein. A lower locking portion 22 that is fixed to the installation portion is formed at the lower portion of the stationary support column 2 . The lower locking portion 22 has a locking shape that fits into the front shape of the top shelf 22f by a spring bias. Thereby, it can be fixed by fitting into the front end of the top shelf 22f. Further, the upper part of the main body portion where the locking groove 23A is formed has a rounded shape corresponding to the shape of the locking groove 23A.

The locking groove 23A is formed in the shape of a notch on the side surface of a square piece of wood having a thickness W, and a groove having a depth w ₁ is formed symmetrically by the partition wall 231 at the center. The locking groove 23A includes a long vertical groove portion (long vertical portion) 23 that extends in the vertical direction, a connecting groove portion (connecting portion) 25 that is continuous with the upper end of the long vertical groove portion 23 and extends a little rearward, and a rear end of the connecting groove portion 25. It is an irregularly shaped continuous groove consisting of a short vertical groove part (short vertical part) 26 which is continuous and extends in the vertical direction, and a short horizontal groove part (short horizontal part) 24 which is continuous with the lower end of the short vertical groove part 26 and extends rearward. The long longitudinal groove portion 23 is a linear groove formed in the front portion that occupies most of the height of the stationary support column portion 2 . The lower end of the long longitudinal groove portion 23 is one end of the locking groove 23A. The groove depth of the long longitudinal groove portion 23 is such that the locking protrusion 35 fits loosely into one groove and does not fall off during movement, and is approximately 5 mm to 10 mm.

The connecting groove portion 25 is a groove that connects the long vertical groove portion 23 and the short vertical groove portion 26, and in this example has an upwardly curved rounded shape. This radius is preferably a part of a circle centered on the axis of the locking projection 35 when the locking projection 35 is located on the bottom wall portion 241 at the lower end of the short longitudinal groove portion 26. Further, the connecting portion of the connecting groove portion 25 with the short longitudinal groove portion 26 is located above the connecting portion with the long longitudinal groove portion 23. Due to this shape of the connecting groove part 25, the locking protrusion 35 of the movable support part 3 can be moved from the long vertical groove part 23 via the connecting groove part 25 to the short vertical groove part 26, or from the short vertical groove part 26 to the connecting groove part 25. When moving to the long longitudinal groove part 23, it becomes smooth.

The short vertical groove portion 26 is a vertical groove formed at the rear of the long vertical groove portion 23 and above the long vertical groove portion 23 and has a small height. That is, the front upper part of the short longitudinal groove part 26 is continuous with the connecting groove part 25, and the rear lower part of the short longitudinal groove part 26 is continuous with the short lateral groove part 24. Therefore, the short longitudinal groove portion 26 has a rear upper wall portion 251, a front lower wall portion 252, and a bottom wall portion 241. When the locking protrusion 35 of the movable support part 3 fits into the short vertical groove part 26 from the long vertical groove part 23 via the connecting groove part 25, it is guided by the rear upper wall part 251 and the front lower wall part 252 of the short vertical groove part 26. , and reach the bottom wall portion 241. Thereby, the board-shaped door 9 latched to the movable support portion 3 can be held in a closed state.

The short horizontal groove part 24 is continuous with the rear lower part of the short vertical groove part 26, and extends rearward in a slightly downwardly inclined shape. Further, the rear end of the short lateral groove portion 24 is the other end of the locking groove 23A. By making the short horizontal groove part 24 slightly downwardly inclined backward, the back surface of the front plate 31 of the movable support part 3 comes into contact with the small protrusion 27 extending upward from the upper end of the fixed side support part 2, and the fixed side support part 2 is leveled. It can be a posture. This allows the opening on the shelf to be held open. In this way, the locking groove 23A is formed by three walls, the side walls and the partition wall, and is a continuous groove from the lower end of the long longitudinal groove 23 to the rear end of the short lateral groove 24. There is. Note that the groove 211 located on the rear side of the long longitudinal groove 23 of the fixed side support column 2 is not the locking groove 23A, but is a recess forming the rib structure 21. This allows weight to be reduced while maintaining strength.

The movable support part 3 is a medium-sized square case with an open back surface and has left and right side plates 33a and 33b, a front plate 31, a top plate 36, and a bottom plate 37. Further, the upper left and right side plates 34a and 34b that are continuous with the left and right side plates 33a and 33b have a large depth dimension. This allows the locking protrusion 35 to be installed. The formation position of the locking protrusion 35 in the movable support part 3 is such that when the locking protrusion 35 is locked in the short longitudinal groove part 26, the movable support part 3 is in a substantially upright state and a part of the fixed side support column part 2 is formed. The movable support part 3 is in a substantially horizontal position when the locking protrusion 35 is locked to the end of the short lateral groove part 24. That is, the distance between the locking protrusion 35 and the back surface of the front plate 31 of the movable support part 3 has a dimension that is approximately the same as the height from the bottom wall part 241 of the short vertical groove part 26 of the fixed side support part 2 to the upper end of the small protrusion 27. have Thereby, the movable support section 3 with the board 9 can take a lying position from a state where the opening on the shelf is closed, to a state where the movable support section 3 is lying down with the opening on the shelf open.

The locking protrusion 35 is a round bar shaft that faces each other on the back surface of the left and right side plates 34a and 34b at the top of the movable support part 3, and the shaft diameter is slightly smaller than the groove width of the locking groove 23A, and the shaft length is , is slightly smaller than the groove depth w ₁ of the locking groove 23A. The locking protrusion 35 locks the symmetrical locking groove 23A formed on both side surfaces of the stationary support column 2 so as to sandwich it from both sides. That is, the locking protrusion 35 is capable of reciprocating from the lower end of the long longitudinal groove 23 to the rear end of the short lateral groove 24 via the connecting groove 25. Furthermore, an upper locking piece 32a is formed at the upper end of the front plate 31 of the movable support portion 3, and a lower locking piece 32b is formed at the lower end. A board 9 is installed on the upper locking piece 32a and the lower locking piece 32b. That is, when the locking protrusion 35 of the movable support part 3 locks with the lower end of the short longitudinal groove part 26 and hangs vertically downward, the board 9 closes the opening on the shelf, and the locking protrusion 35 of the movable support part 3 When the board 9 is locked to the lower end of the long vertical groove 23 and hangs vertically toward the lower display shelf, the board 9 opens an opening on the shelf, and the locking protrusion 35 of the movable support part 3 engages the rear end of the short horizontal groove 24. When the board 9 is locked and laid down, the board 9 opens an opening on the shelf.

Next, how to use the support column 10 will be explained. As shown in FIG. 8, the opening on the shelf is normally closed by a board 9. In this case, a board 9 serving as a door is installed across the movable support portions 3 of the pair of support columns 10. That is, the upper left and right ends of the board 9 are locked to the upper locking piece 32a, and the lower left and right ends are locked to the lower locking piece 32b. Thereby, the movable support part 3 and the board 9 are integrated. The stationary support column 2 is attached to the front end of the top plate 22f of the multi-stage display shelf. That is, the lower locking portion 22 of the stationary support column 2 is locked and fixed to the front edge of the top plate 22f. Thereby, the stationary support column 2 is fixed to the top plate 22f in an upright manner. Further, as shown in FIG. 9, in this state, the locking protrusion 35 of the movable support part 3 is locked to the bottom wall part 241, which is the lower end of the short vertical groove part 26, and the movable support part 3 is By hanging down around the locking protrusion 35 and hitting the fixed side support column 2, the front portion, which is a part of the fixed side support column 2, is covered. In this state, the stock replenishment products placed on the shelves are hidden by the board 9 and cannot be seen.

Next, the stock replenishment products placed on the shelves are taken out or replenished. At this time, hold the board 9 or the lower end of the movable support 3 and rotate it upward to open the opening on the shelf. The movable support portion 3 rotates smoothly around the locking protrusion 35. Next, when the movable support part 3 is in a substantially horizontal position, the locking protrusion 35 locks with the rear end of the short lateral groove part 24 by pushing it to the back side. At this time, the back surface of the front plate 31 of the movable support part 3 hits the upper end of the small protrusion 27 of the fixed side support column 2 and supports the movable support part 3, so the movable support part 3 does not fall forward and is approximately horizontal. Can maintain posture. In this state, the worker's hands are free and he or she can take out or replenish replenishment products placed on the shelf through the openings on the shelf. In addition, since the short lateral groove part 24 is sloped slightly downward to the rear, if the movable support part 3 is pulled out a little forward and the locking protrusion 35 is positioned in front of the end of the short lateral groove part 24, the small lateral groove part 24 can be The distance between the upper end of the protrusion 27 and the back surface of the front plate 31 of the movable support section 3 is increased, and the movable support section 3 can be smoothly rotated without the movable support section 3 and the small protrusion 27 coming into direct contact. .

As a method of opening the opening on the shelf, in addition to the method of opening the opening on the shelf shown in FIGS. 10 to 12, methods such as those shown in FIGS. 13 and 14 can be adopted. That is, in FIGS. 13 and 14, the locking protrusion 35 of the movable support part 3 that supports the board 9 is locked to the lower end (terminal end) of the long vertical groove part 23 of the stationary support column part 2, and the movable support part 3 hangs down toward the lower display shelf, opening the front opening of the space above the shelf. As a result, the space above the shelf is open to the ceiling except for the pair of left and right fixed support columns 2, 2, making it easier to take out and replenish stocked products. Further, since the board 9 can be operated only up and down without rotating it, it can be operated safely on a stepladder. In addition, this up-and-down operation requires only a low reach, so it can be operated from a low position on the stepladder and is safe.

As shown in FIG. 14(B), the pair of locking protrusions 35 of the movable support portion 3 are loosely fitted into the pair of locking grooves 23A so as to sandwich them from both sides. Therefore, the movement of the movable support section 3 in FIGS. 8 to 14 can be easily performed by manually operating the board 9 or the movable support section 3. For example, from the state in which the locking protrusion 35 in FIGS. 13 and 14 is locked to the lower end of the long vertical groove portion 23 (one end of the locking groove 23A), the locking protrusion 35 in FIGS. 10 to 12 is shortened. In order to move the board 9 or the movable support part 3 to a state where it is locked to the rear end of the lateral groove part 24 (the other end of the locking groove 23A), the board 9 or the movable support part 3 is moved while being lifted upward. The locking protrusion 35 moves naturally along the shape of the locking groove 23A, so the locking protrusion 35 enters the short longitudinal groove 26 from the connecting groove 25. Next, by slightly dropping the board 9 or the movable support part 3, the locking protrusion 35 reaches the bottom wall part 241 of the short longitudinal groove part 26. Next, by rotating the board 9 or the movable support part 3 upward and pushing it backward, the locking protrusion 35 reaches the rear end (terminal end) of the short lateral groove part 24 . Furthermore, from the state in which the locking protrusion 35 in FIGS. 10 to 12 is locked to the rear end of the short lateral groove portion 24 (the other end of the locking groove 23A), the locking protrusion 35 in FIGS. 13 and 14 is In order to move it to a state where it is locked to the lower end of the long longitudinal groove portion 23 (one terminal end of the locking groove 23A), it is sufficient to perform the operation in the reverse order of the above-mentioned operation method.

Next, a support column according to a second embodiment of the present invention will be described with reference to FIGS. 15 to 18. In the strut bodies of FIGS. 15 to 18, the same components as those of the strut bodies of FIGS. 1 to 14 are given the same reference numerals, and their explanations will be omitted, and differences will be mainly explained. That is, the strut body 10a of FIGS. 15 to 18 differs from the strut body 10 of FIGS. 1 to 14 in the movable support portion. That is, the movable support portion 3a shown in FIGS. 15 to 18 has a height adjustment function that accommodates boards of different heights. That is, the movable support section 3A includes a support main body section 3a and a height adjustment member 8 that can be freely inserted into the support main body section 3a and can be moved vertically by a predetermined dimension.

The support main body portion 3a has a shallow concave portion 31a, which is surrounded by left and right side plates 364, 364, a bottom plate 365, and a lower side plate 366, in which the upper part of the front side plate 31 is cut out. Six small protrusions 361 extending inward are formed at the front ends of the left and right side plates 364 at appropriate pitches in the vertical direction, forming guide rails 362 on the back side of the small protrusions 361. Note that the reference numeral 363 is a hole for molding. Further, a large number (10 in this example) of locking holes 367 are formed in the center of the bottom plate 365 in the left-right direction at appropriate pitches in the vertical direction.

In this example, the height adjustment member 8 is shorter than the height of the concave portion 31a, and is fit into the concave portion 31a of the support body portion 3a so as to be slidable in the vertical direction. The height adjustment member 8 has flanges 83a, 83a on both rear edges of a short plate-like body that extend in the length direction and engage with the guide rails 362 of the support body 3a, and has a board 9 on the upper end. An upper locking piece 32a is formed to support the upper locking piece 32a, and a thin flexible locking piece 82 is formed at the lower part. A small protrusion 821 is formed on the back surface of the flexible locking piece 82 to lock into a locking hole 367 formed in the concave portion 31a of the support main body portion 3a. The height adjustment member 8 is slidably fitted into the concave portion 31a of the support main body portion 3a, and is fixed by locking between the small protrusion 821 and the locking hole 367. Furthermore, by raising the height adjustment member 8 by, for example, L ₂ , it is possible to accommodate a board 9 with a large height (vertical length), and by lowering the height adjustment member 8, for example, by L ₁ , the board 9 can be adjusted to a larger height (vertical length). 9 can be accommodated when the height is small (see FIG. 17).

Next, a support column according to a third embodiment of the present invention will be described with reference to FIGS. 19 and 20. In the strut bodies of FIGS. 19 and 20, the same components as those of the strut bodies of FIGS. 1 to 14 are denoted by the same reference numerals, and the explanation thereof will be omitted, and the different points will be mainly explained. That is, the strut body 10b of FIGS. 19 and 20 differs from the strut body 10 of FIGS. 1 to 14 in that the shape of the locking groove of the fixed side strut part and the movable structure in which the movable support part 3 is in a horizontal state above. This is a holding mechanism for the support part 3. That is, the locking groove 23B of the strut body 10b in FIGS. 19 and 20 differs from the locking groove 23A in FIGS. 1 to 14 in that the short lateral groove 24 of the locking groove 23A is omitted. . That is, the locking groove 23B of the stationary support column 2 is continuous with the long vertical groove 23 extending in the vertical direction, the connecting groove 25 that is continuous with the upper end of the long vertical groove 23 and slightly extending rearward, and the rear end of the connecting groove 25. The locking protrusion 35 is an irregularly shaped groove consisting of a short vertical groove 26 extending in the vertical direction, and the locking protrusion 35 is reciprocated from the lower end of the long vertical groove 23 to the lower end wall 241 of the short vertical groove 26 via the connecting groove 25. It is free.

In addition, in the column body 10b, as a holding mechanism for maintaining the open state (horizontal state) of the movable support part 3, there is a mechanism that protrudes inward on the inner surfaces (back surfaces) of the left and right side plates 34a and 34b at the upper part of the movable support part 3. This is because a holding protrusion 39 is provided. That is, the formation position of the holding protrusion 39 is behind the locking protrusion 35, and when the movable support part 3 is in the open state (horizontal state), it is located below the bottom wall 241 of the short longitudinal groove part 26, and is fixed. This position is such that it comes into contact with the inner surface of the rear wall 212 forming the concave groove 241 of the rib structure of the side support portion 2 . The height of the holding protrusion 39 is sufficient as long as it maintains the horizontal state shown in FIG. That is, when the movable support section 3 is brought from the state shown in FIG. 19 to the horizontal state shown in FIG. By doing so, it climbs over and locks onto the inner surface of the rear wall 212 of the stationary support column 2. In this way, the strut body 10b also has the same effects as the strut body 10.

The support column of the present invention is not limited to the above-described embodiments, and can be modified in various ways. The locking grooves 23A and 23B may be locking holes penetrating from side to side instead of a groove structure. Further, the locking grooves 23A and 23B may be a mixture of a groove through which a part of the groove bottom passes through and a through hole. A locking groove having such a locking hole or a partial through hole also has the same effect as the locking grooves 23A and 23B. Further, for example, the connecting groove portion 25 is not limited to the rounded shape shown in FIG. 5, but may be rounded with various curvatures, or may be an irregularly shaped groove other than rounded. Further, the short lateral groove portion 24 is not limited to a downwardly inclined rearward direction, but may be a lateral groove without an inclination. Further, the small protrusion 27 at the upper end of the stationary support column 2 may be omitted. Further, the lower locking portion 22 of the stationary support column 2 may be fixed using a fixing aid such as a screw. The rib structure 21 located behind the long longitudinal groove 223 of the stationary support column 2 may not be provided, and may be a flat surface. The left and right side plates 33a and 33b of the movable support section 3 can be omitted. Further, the upper left and right side plates 34a, 34b may be of any type as long as they can be provided with the locking protrusion 35, and are not limited to the large side plate shape as shown in FIG.

According to the present invention, the pair of protrusions of the movable support part on the board side are loosely fitted so as to sandwich the pair of locking grooves or locking holes formed on both sides of the fixed side support column part on the fixed side, Because it locks, the operation is stable and easy when opening and closing the board.

2 Fixed side support portion 3 Movable support portion 9 Boards 10, 10a, 10b serving as doors Support body 22f Top shelf 23 Long vertical groove portion 23A Locking groove 24 Short horizontal groove portion 25 Connecting groove portion 26 Short vertical groove portions 34a, 34b Upper left and right side plates 35 Locking protrusion 39 Holding protrusion

Claims (6)

It supports a board-shaped door that opens and closes the front opening of the space above the shelf of a multi-tiered display shelf for displaying products ,
a fixed side support column fixed to the installation part, which has a pair of symmetrical locking grooves or locking through holes formed on both side surfaces and has a projection extending upward at the upper end;
The fixed side support has a pair of locking protrusions facing each other that loosely fits into the locking groove or the locking through hole at the rear upper part, and has a locking part for locking a board-shaped door at the front part. a movable support part that is movable and latched to the part;
A pair of left and right support columns having
The support column is characterized in that the movable support portion is capable of reciprocating from a hanging state in which the front opening is closed to a substantially horizontal state in which the front opening is opened. The strut body according to claim 1, wherein the movable support portion has upper left and right side plates, and the locking protrusion is attached to the inner surface of the upper left and right side plates. 3. The strut body according to claim 2, wherein the movable support part is a medium-sized square case having an open back surface and having left and right side plates continuous with the upper left and right side plates, and a front side plate. The locking groove or the locking through hole has a short horizontal portion that slopes slightly downward toward the rear, and when the movable support portion is in a substantially horizontal state, the locking protrusion is located at the rear end of the short horizontal portion. 4. The strut body according to claim 3, wherein the protrusion is locked and in contact with the back surface of the front side plate. 5. The short lateral portion has a horizontal portion in front that is continuous with the downward slope, and the locking protrusion locks on the horizontal portion when the movable support portion is in a hanging state. strut body. The pillar body according to any one of claims 1 to 5, wherein the board-shaped door has product information displayed thereon.