JP2006130179A - Shelf fitting device of shelf apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide shelf fitting devices of shelf apparatus capable of preventing unsteadiness and coming off of shelf boards from shelf brackets so as to stably retain the shelf boards. <P>SOLUTION: Sliding grooves 14d are formed in front and rear lateral faces inside a recessed groove part 14a of a receiving member 14 provided on a lower face of the shelf body 7. A pair of sliding projections 13a of an engaging member 13 is fitted to the sliding grooves 14d so that the engaging member 13 precisely slides in a right and left direction without inclining. At this time, an upper face of the engaging member 13 is fitted to a lower face of the shelf bracket 10 so that the shelf bracket 10 is retained by the shelf board 7 and the engaging member 13 inside the recessed groove part 14a so as to stably retain the shelf board 7 without unsteadiness. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention is to fit the left and right sides of the shelf plate by fitting the recessed grooves formed in the front and rear of the left and right bottom surfaces of the shelf plate to the shelf holders protruding from the front side and the rear side of the inner side surface of the side plate. The present invention relates to a shelf mounting device for a shelf device such as a book shelf that allows a shelf to be installed between side plates.

  The left and right side plates constituting the shelf body of the conventional shelf apparatus are provided with shelf holders such as dowels for each predetermined height, and the groove grooves formed on the lower surface of the shelf board are provided on these shelf holders. By being fitted, a plurality of stages of shelf boards are provided in the vertical direction of the shelf body. A locking member is slidably provided in the recessed groove formed on the bottom surface of the shelf board. When the shelf board is fitted to the shelf holder, the locking member is slid to The position of the shelf board is fixed by storing the tool in the recessed groove portion, the fitting state of the shelf holder is maintained, and the removal of the shelf board from the shelf holder is prevented (for example, Patent Document 1). reference).

JP-A-10-57170 (see paragraphs 0014 to 0016 and FIGS. 3 and 4)

  However, in Patent Document 1, since a gap is formed between the locking member and the shelf holder, the shelf board may sway in the vertical direction. In addition, since the front and rear ends of the locking member are only on the locking rod that forms the concave groove, the locking member itself may be rattled, and the shelf board must be held in a stable and stable state. Was difficult.

  The present invention has been made paying attention to such a problem, and can prevent the shelf board from being detached from the shelf holder and can be held in a stable state without wobbling the shelf board. An object of the present invention is to provide a shelf mounting apparatus.

In order to solve the above-mentioned problem, the shelf mounting device of the shelf device according to claim 1 of the present invention is a shelf holder that protrudes inward from the front and rear of the inner side surface of the side plate of the shelf body. In the shelf mounting apparatus for a shelf apparatus, in which the shelf plate can be installed between the left and right side plates by fitting the recessed groove portions extending in the left-right direction formed on the front and rear of the left and right lower surfaces of the shelf plate, After mounting on the shelf holder, a locking member that covers at least a pair of concave grooves on the front or rear side from below is installed on the bottom surface of the shelf plate among the concave grooves, and the locking member The fitting portion that fits the lower surface of the shelf holder is formed on the upper surface, and a pair of sliding protrusions extending in the left-right direction is formed on the front and rear, while the sliding groove is formed on the front and rear side surfaces of the concave groove portion, respectively. The pair of sliding protrusions are fitted in the sliding grooves, and the sliding movement is performed in the left-right direction. By, the fitting portion is characterized in that a selectable and a state to be fitted to the shelf receptacle, and a state of not engaging.
According to this feature, the pair of sliding protrusions of the locking member are fitted into the sliding grooves formed on the front and rear side surfaces in at least the front or rear pair of concave grooves of the concave grooves of the shelf board. Thus, the sliding movement of the locking member in the left-right direction is accurately performed without tilting. Therefore, the upper surface of the locking member can be fitted to the lower surface of the shelf holder, and the shelf holder is held by the shelf plate and the locking member in the groove portion, and the shelf plate is kept stable without wobbling. It is.

The shelf mounting apparatus of the shelf apparatus according to claim 2 of the present invention is the shelf mounting apparatus of the shelf apparatus according to claim 1, wherein the length of the concave groove portion in the left-right direction is limited to a predetermined length. The concave groove portions located on the left and right sides are not communicated with each other.
According to this feature, since the left and right lengths of the concave groove portion are limited, movement of the locking member in the horizontal direction in the concave groove portion can be limited, and even if the locking member is in a non-fitted state, the shelf It is possible to prevent the receiver from being too far from the fitted state, and to smoothly switch between the non-fitted state and the fitted state.

The shelf mounting apparatus of the shelf apparatus according to claim 3 of the present invention is the shelf mounting apparatus of the shelf apparatus according to claim 1 or 2, wherein the recessed groove portion is a recessed groove formed in the shelf plate. It is characterized by being formed through the receiving member.
According to this feature, the locking member can be slidably guided only by fitting the receiving member having the sliding groove into the concave groove formed in the shelf board, and can be easily applied to the existing shelf board. it can.

The shelf mounting apparatus for a shelf apparatus according to a fourth aspect of the present invention is the shelf mounting apparatus for the shelf apparatus according to any one of the first to third aspects, wherein the sliding groove is a pair positioned vertically. It is comprised by the protrusion part extended in the left-right direction.
According to this feature, since the sliding groove is constituted by the protruding portion, the depth of the groove can be sufficiently taken, and the locking member can be slidably guided in a more stable state.

The shelf mounting apparatus of the shelf apparatus according to claim 5 of the present invention is the shelf mounting apparatus of the shelf apparatus according to claim 4, wherein the shape of the shelf holder is a circular cross section, and the outer peripheral surface thereof. It is characterized in that the front and rear are in contact with the protruding portion located above.
According to this feature, even if the shelf board shakes back and forth, the forward and backward projections in the recessed groove part are in contact with the outer edge of the shelf holder, so that the shelf board is restricted from moving back and forth. Backlash in the longitudinal direction of the plate is prevented.

The shelf mounting apparatus for a shelf apparatus according to claim 6 of the present invention is the shelf mounting apparatus for the shelf apparatus according to claim 5, wherein the upper surface of the fitting portion is in the shape of the lower surface of the shelf holder. It is characterized by being formed by a circular arc groove along the cross section.
According to this feature, since the lower surface of the shelf holder can be held in close contact with the cross-sectional arc groove of the fitting portion, the vertical shaking of the shelf board is prevented.

The shelf mounting device of the shelf device according to claim 7 of the present invention is the shelf mounting device of the shelf device according to any one of claims 1 to 6, wherein It is characterized in that an operation unit facing downward is provided.
According to this feature, the locking member can be slid only by operating the operation portion in the left-right direction, and the switching operation between the engagement state and the non-fitting state between the engagement member and the shelf holder can be easily performed. In particular, when the locking member is installed on the bottom surface of the shelf plate, the operation unit can be easily picked if the operation unit is provided at a position separated from the side plate.

  Examples of the present invention will be described below.

  FIG. 1 is a perspective view showing an overall image of a shelf apparatus in Embodiment 1 of the present invention, and FIG. 2 is a partially broken perspective view looking up at the shelf apparatus from the lower surface side of the shelf board provided with the rear panel. FIG. 3 (a) is a perspective view showing an exploded view of the receiving member and the locking member. FIG. 3 (a) is a perspective view showing a state where the shelf holder is attached to the mounting bracket and the shelf plate is placed on the shelf holder. FIG. 3B is a perspective view in which the locking member is fitted and attached to the receiving member, and FIG. 4A is a mounting view of the receiving member provided with the locking member in the groove of the shelf board. FIG. 4B is a bottom view in which the receiving member provided on the shelf plate is fitted to the shelf holder of the side plate, but the locking member is not fitted.

  Fig.5 (a) is the bottom view which shows the state by which the shelf holder was fitted by the locking member, and the principal part expanded bottom view which shows the fitting state of a locking member and a shelf holder, FIG. FIG. 6B is a cross-sectional view taken along line AA in FIG. 6A, and FIG. 6A is a side view in which shelf boards are horizontally placed on the front and rear shelf holders. FIG. 6B is a side view in which the rear shelf holder is lowered to a lower position with respect to the front shelf holder, and the shelf board is inclined rearward. FIG. It is the side view which mounted the board, made the front shelf holder fit the fitting part of a rear surface board, inclined the shelf board toward the front, and inclined the rear board toward the back.

  This shelf board is used as a placement shelf for articles such as books. Therefore, Embodiment 1 of the present invention will be described with reference to the drawings. First, as shown in FIG. 1, the shelf device 1 mainly includes side plates 4 and 4 erected on the left and right sides, A shelf body 1a, which is a frame composed of a top plate 2 provided at the upper end portion and a mounting table 3 provided at the lower end portions of the side plates 4 and 4, and in a vertical direction within the shelf body 1a. The shelf board 7 is constructed with a plurality of stages (four stages in this embodiment). Hereinafter, in the present embodiment, the front side of the shelf apparatus 1 will be referred to as the front, the back side will be referred to as the rear, and the side plates 4 and 4 side will be described as the left-right direction.

  On the rear end side of the shelf board 7, the rear plate 8 of the metal plate extends upward, and when the article 20 is placed on the shelf board 7, a support plate is provided so that the article 20 does not fall backward. It has become. Further, by replacing the front and rear positions of the shelf board 7 and the rear panel 8, the article 20 is placed on the rear panel 8 and used as a support for the article 20 by the shelf board 7.

  Grooves (not shown) are formed in the front and rear positions of the inner side surfaces of the side plates 4 and 4 in the vertical direction, and the mounting brackets 6 and 6 ′ are respectively formed in the front and rear grooves in the vertical direction. As shown in FIG. 2, the mounting brackets 6 and 6 ′ have engaging holes 6a and 6a ′ for fixing and supporting shelf receivers 10 and 10 ′, which will be described later, wide in the front-rear direction. A plurality of horizontally long rectangles are formed in the vertical direction, and shelf holders 10 and 10 'are engaged at predetermined height positions of the engagement holes 6a and 6a'.

  The shelf holders 10 and 10 ′ are for supporting a shelf having a circular cross section for supporting the engaging body 11 formed with hook-like hooks to be engaged in the engaging holes 6 a and 6 a ′ and the shelf plate 7. The shelf holder 10 is formed integrally with a nut 12 (hereinafter referred to as a nut 12), the engaging body 11 is engaged with the engaging holes 6a and 6a 'of the mounting brackets 6 and 6', and the nut 12 is further screwed. , 10 'are fixed to the engaging holes 6a, 6a' so that they cannot be easily removed.

  Next, the shelf board 7 will be described in detail. As shown in FIG. 2, the lower surface 7d of the shelf board 7 has a predetermined length from the end face on the shelf board 7 in the left and right length directions and is positioned at the front and rear positions. Concave grooves 7a and 7a 'are respectively formed. A receiving member 14 (molded with plastic resin in this embodiment) is fitted into the left and right concave grooves 7a, 7a at the front position, and a concave groove portion 14a is formed on the lower surface of the receiving member 14. .

  The receiving member 14 is provided with a locking member 13 (molded with plastic resin in this embodiment) so as to be slidable in the left-right direction. Therefore, the groove portion 14a of the receiving member 14 is fitted to the front shelf holder 10 and the groove 7a 'is fitted to the rear shelf holder 10', so that the space between the left and right side plates 4 of the shelf body 1a can be reduced. The shelf board 7 is erected stably.

  A rear plate 8 of a metal plate is provided at the rear end portion 7c of the shelf plate 7, and a mounting portion 8a is formed by bending the lower end portion toward the front, and the shelf plate 7 is screwed with screws 17 through the mounting portion 8a. It is screwed into the rear end portion 7c and securely fixed. A fitting portion 8b is formed from an upper end edge extending upward from the mounting portion 8a of the rear plate 8 so that an opening is formed downward in a U-shape in a side view toward the rear.

  The receiving member 14 fitted in the concave groove 7a of the shelf board 7 and the locking member 13 provided on the receiving member 14 will be described in detail. As shown in FIG. Is formed with a concave groove portion 14a that is U-shaped in a side view and is formed in the left and right length directions, and protrudes inward in the front-rear position of the downward opening of the concave groove portion 14a. 14c is formed.

  An upper protrusion 14b that is substantially the same type as the lower protrusion 14c is formed at a position above the lower protrusion 14c. Between the lower protrusion 14c and the upper protrusion 14b, the upper protrusion 14b extends in the left-right direction. Sliding grooves 14d are formed at the front and rear positions. On the outer peripheral surface of the receiving member 14, an insertion portion 14e having a plurality of steps in cross section is formed.

  The locking member 13 is formed with a pair of sliding projections 13a and 13a that can be fitted in the front and rear sliding grooves 14d of the receiving member 14 in the longitudinal direction at the front and rear positions. Between the projections 13a and 13a, a fitting portion 13b having a circular arc cross section is formed in the left and right length directions. On the lower surface of the sliding projection 13a, there is provided an operation portion 13c projecting downward at a position spaced from the side end of the locking member 13.

  Next, in order to attach the locking member 13 to the receiving member 14 from the state shown in FIG. 3A, the locking member 12 is moved in the direction indicated by the arrow while FIG. As shown in the figure, the front and rear sliding protrusions 13a and 13a are fitted in the front and rear sliding grooves 14d and 14d, respectively, and the operation part 13c facing downward is operated while picking it with a finger, and is further slid further back. As a result, the locking member 13 is attached to the receiving member 14. Therefore, the locking member 13 can be smoothly operated along the sliding groove 14d by the operation of the operation portion 13c in the left-right direction.

  As described above, the front and rear sliding grooves 14d and 14d are formed between the pair of left and right upper projecting portions 14b and 14b and the lower projecting portions 14c and 14c, which are positioned vertically in the recessed groove portion 14a of the receiving member 14. Thus, the depth of the groove can be sufficiently secured, and the pair of sliding projections 13a, 13a of the locking member 13 can be slidably guided in the left-right direction in a stable state.

  Next, description will be given of attaching the receiving member 14 provided with the locking member 13 to the shelf board 7. As shown in FIG. 4A, in the state where the locking member 13 is provided on the receiving member 14, the arrow The receiving member 14 is firmly fixed to the shelf board 7 by moving from the side end of the shelf board 7 toward the concave groove part 7a in the direction and fitting the insertion part 14e into the concave groove part 7a. In this way, the locking member 13 can be slidably guided only by fitting the receiving member 14 having the sliding groove into the concave groove 7a formed in the shelf board 7, and even with respect to the existing shelf board. Easy to apply.

  Next, as shown in FIG. 4B, the shelf plate 7 provided with the receiving member 14 is fitted into the nut 12 of the shelf holder 10 that is engaged with the mounting bracket 6 by the concave groove portion 14 a of the receiving member 14. The shelf board 7 is erected by placing it so as to be embedded. Therefore, the locking member 13 can be moved toward the shelf holder 10 by operating the operation portion 13c in the direction indicated by the arrow.

  Then, as shown in FIG. 5A, the sliding protrusions 13a before and after the locking member 13 are slid along the sliding groove 14d by the operation of the operating portion 13c, and the end of the locking member 13 is When abutting against the outer surface of the mounting bracket 6, the fitting portion 13 b of the locking member 13 is fitted to the outer peripheral portion of the nut 12 of the shelf holder 10. As described above, when the receiving member 14 is installed on the lower surface of the shelf board 7, the operation portion 13 c is provided downward at a position away from the contact surface side of the side plate 4 of the locking member 13. 13c can be easily picked, and the locking member 13 can be slid only by operating the operation portion 13c in the left-right direction. Therefore, the engagement state and the non-fitting state of the locking member 13 and the shelf holder 10 are Switching operation can be easily performed.

  The left and right lengths of the recessed groove portions 14a formed in the receiving members 14 provided on the left and right sides of the shelf board 7 are limited to predetermined lengths, respectively, so that the locking member 13 in the recessed groove portion 14a is The movement in the left-right direction can be restricted, and even when the locking member 13 is in the non-fitted state, it is prevented that the nut 12 of the shelf holder 10 is too far from the fitted state, and the non-fitted state and the fitted state It is the structure which can perform switching of smoothly.

  Next, the fitting state of the locking member 13 and the nut 12 of the shelf holder 10 will be described in detail. As shown in FIG. 5B, a pair of left and right upper portions in the concave groove portion 14 a of the receiving member 14. Sliding projections 13a and 13a are slidably fitted in sliding grooves 14d formed between the protruding portions 14b and 14b and the lower protruding portions 14c and 14c. The upper surface of the outer edge of 12 is brought into contact with the ceiling surface of the concave groove portion 14a, and the lower surface of the outer edge of the nut 12 is fitted and held in close contact with the fitting portion 13b having a circular arc shape in section. Further, rattling of the shelf board 7 is prevented. Further, since the front and rear surfaces of the outer edge are in contact with the pair of front and rear upper projecting portions 14b and 14b, the movement of the shelf board 7 is restricted and the backlash of the shelf board 7 in the front-rear direction is also prevented.

  As described above, in the first embodiment, the pair of sliding protrusions 13a of the locking member 13 are formed in the sliding grooves 14d formed on the front and rear side surfaces in the concave groove portion 14a of the receiving member 14 provided on the lower surface of the shelf board 7. By fitting, the sliding movement of the locking member 13 in the left-right direction is accurately performed without tilting. Therefore, the upper surface of the locking member 13 can be fitted to the lower surface of the shelf holder 10, and the shelf holder 10 is held by the shelf plate 7 and the locking member 13 in the recessed groove portion 14 a, and the shelf plate 7 is wobbled. And is kept stable.

  Therefore, a side view of the shelf board 7 shown in FIG. 2 is shown in FIG. 6A, and the shelf holders 10, 10 ′ are engaged with the mounting brackets 6, 6 ′ in a horizontal state. ing. The groove 7 a ′ is placed on the shelf holder 10 ′, and the shelf holder 10 is fitted to the receiving member 14 by the locking member 13, thereby preventing the shelf board 7 from rattling, and the article 20 is placed on the shelf board 7. Placed in a stable state. In this case, the receiving member 14 can be fitted into the rear concave groove 7a '.

  Next, as shown in FIG. 6 (b), even when the rear shelf holder 10 ′ is moved and engaged to the engagement hole 6 a ′ located below, and the shelf 7 is slightly inclined backward, Since the shelf holder 10 is fitted to the receiving member 14 by the locking member 13, rattling of the shelf board 7 is prevented, and the article 20 can be placed in a state in which the article 20 is tilted backward on the shelf board 7. In addition, since the back surface of the article 20 is supported by the rear plate 8, the article 20 is prevented from falling below the rear side of the side plate 4.

  Furthermore, as shown in FIG. 6C, the front and rear direction of the shelf board 7 is changed so that the fitting portion 8b of the rear face plate 8 is fitted to the front shelf holder 10 and the rear shelf holder. When the tool 10 ′ is fitted to the receiving member 14 by the locking member 13, rattling of the shelf plate 7 is prevented, and the lower surface of the article 20 becomes the rear plate 8 even when the article 20 is long. Since the back surface of the article 20 is supported by the shelf board 7, it can be placed stably.

  Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 7A is a perspective view of attaching the locking member to the concave groove portion of the shelf board in the second embodiment, and FIG. 7B is a perspective view of attaching the locking member to the concave groove portion of the shelf board. . In the following second embodiment, the same structural parts as those of the first embodiment will be denoted by the same reference numerals, and detailed description thereof will be omitted.

  As shown in FIG. 7A, the shelf plate 15 is formed with a U-shaped concave groove portion 15a that opens toward the lower surface in a predetermined length in the left and right length directions, and the concave groove portion 15a. A lower projecting portion 15c projecting inwardly is formed at the front and rear positions of the downward opening, and an upper projecting portion 15b is formed at an upper position, and the left and right projecting portions 15b, 15c Sliding grooves 15d are formed at the front and rear positions in the longitudinal direction.

  Therefore, to attach the locking member 13 having the same shape as that of the first embodiment to the receiving member 15, as shown in FIG. 7B, while moving the locking member 13 in the direction indicated by the arrow, By fitting the front and rear sliding protrusions 13a and 13a into the front and rear sliding grooves 15d and 15d, and operating the operation portion 13c facing downward with a finger and sliding it further to the back, A locking member 13 is attached to the receiving member 15, and the locking member 13 can be slidably guided in the left-right direction in a stable state.

  As described above, in the second embodiment, without using the receiving member 14 shown in the first embodiment, the groove 15a is formed directly on the shelf plate 15, and the locking member 13 is slid in the left-right direction in the groove 15a. By forming the movable sliding groove 15d, the locking member 13 can be slid and guided, and the fitting portion 13b is provided on the upper surface of the locking member 13, so that the nut 12 of the shelf holder 10 is fitted. Possible configuration.

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. For example, in the above embodiment, by providing the receiving members 14 only in the front left and right concave grooves 7a, 7a of the shelf board 7, the wobble of the shelf board 7 can be prevented with a minimum configuration, and the side plate 4 can be kept in a stable state. 4 is preferable because the cost is reduced. However, the present invention is not limited to this, and the receiving grooves are also provided in the left and right concave grooves 7a ′ and 7a ′ of the shelf board 7. 14, the rear left and right shelf holders 10 ′ and 10 ′ are also fitted to the receiving member 14 by the fitting of the locking member 13, and the shelves are more firmly placed on the left and right front and back of the lower surface 7 d of the shelf plate 7. The wobbling of the plate 7 may be prevented.

  Further, the shape of the fitting portion 13 b formed on the upper surface of the locking member 13 is not limited to the cross-sectional arc groove, and is formed according to the shape of the shelf holder 10.

It is a perspective view which shows the whole image of the shelf apparatus in Example 1 of this invention. It is the partially broken perspective view which looked up at the shelf apparatus from the lower surface side of the shelf board in which the rear panel was provided, and shows the state where the shelf board was mounted on the shelf holder and the shelf holder. . (A) is a perspective view showing an exploded view of the receiving member and the locking member, and (b) is a perspective view in which the locking member is fitted and attached to the receiving member. (A) is a bottom view which attaches the receiving member provided with the locking member to the ditch | groove of a shelf board, (b) fits the receiving member provided in the shelf board to the shelf holder of a side plate. However, the locking member is a bottom view showing a non-fitted state. (A) is the bottom view which shows the state by which the shelf holder was fitted by the locking member, and the principal part enlarged view which shows the fitting state of a locking member and a shelf holder, (b) It is sectional drawing of the AA of a). (A) is a side view in which shelf boards are horizontally placed on the front and rear shelf holders, and (b) is a lower position of the rear shelf holders than the front shelf holders. , Is a side view in which the shelf plate is inclined rearward, (c) is to place the shelf plate on the rear shelf holder, and to fit the fitting portion of the rear plate to the front shelf holder, It is the side view which inclined the shelf board toward the front and inclined the rear board toward the back. (A) is a perspective view which attaches a locking member to the ditch | groove part of the shelf board in Example 2, (b) is a perspective view which attached the locking member to the ditch | groove part of a shelf board.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shelf apparatus 1a Shelf main body 2 Top plate 3 Mounting stand 4 Side plate 6, 6 'Mounting bracket 6a, 6a' Engagement hole 7 Shelf plate 7a, 7a 'Groove 7c Rear end 7d Lower surface 8 Rear surface plate 8a Mounting portion 8b Fit Joint part 10 Front shelf holder 10 'Rear shelf holder 11 Engaging body 12 Nut (nut for shelf support)
13 Locking member 13a Sliding projection 13b Fitting portion 13c Operation portion 14 Receiving member 14a Recessed groove portion 14b Upper protruding portion 14c Lower protruding portion 14d Sliding groove 14e Insertion portion 15 Shelf plate 15a Recessed groove portion 15b Upper protruding portion 15c Lower protruding portion 15d sliding groove

Claims (7)

  By fitting concave and convex portions formed in the front and rear of the left and right lower surfaces of the shelf plate in the left and right direction, respectively, to the shelf holders protruding from the front and rear of the inner side surface of the side plate of the shelf body, respectively, In the shelf mounting device of the shelf apparatus that allows the shelf to be installed between the side plates, after placing the concave groove portion on the shelf holder, at least a pair of concave grooves on the front or rear of the concave groove portions. A locking member that covers from below is installed on the bottom surface of the shelf board, and the locking member has a pair of fitting portions that fit on the bottom surface of the shelf holder on the top surface and extend in the left-right direction in the front-rear direction. While sliding protrusions are formed, sliding grooves are respectively formed on the front and rear side surfaces of the concave groove portion, and the pair of sliding protrusions are fitted into the sliding grooves to slide in the left-right direction. The state in which the fitting portion is fitted to the shelf holder and the state in which the fitting is not fitted Shelf mounting device of the shelf device is characterized in that the selectable and.   The shelf mounting device for a shelf apparatus according to claim 1, wherein a length of the concave groove portion in the left-right direction is limited to a predetermined length, and the concave groove portions positioned on the left and right are not communicated with each other.   The shelf mounting device for a shelf apparatus according to claim 1 or 2, wherein the recessed groove portion is formed in a recessed groove formed in the shelf board via a receiving member.   The shelf mounting device for a shelf apparatus according to any one of claims 1 to 3, wherein the sliding groove is configured by a pair of protrusions extending in the left-right direction that are positioned vertically.   The shelf mounting device for a shelf device according to claim 4, wherein the shape of the shelf holder is a circular cross section, and the front and rear of the outer peripheral surface thereof are in contact with the protruding portion located above.   The shelf mounting device for a shelf apparatus according to claim 5, wherein the upper surface of the fitting portion is formed by a cross-sectional arc groove along the shape of the lower surface of the shelf holder.   The shelf mounting device for a shelf device according to any one of claims 1 to 6, wherein an operation portion facing downward is provided at a position of a lower surface of the locking member.

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