JP2016116968A - Mounting structure for optional member, and furniture including the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent forgetting a coming-off preventing operation of an optional member such as a shelf board, a tray and a box, and enable suitably mounting the optional member so as not to cause backlash and coming off.SOLUTION: When mounting a shelf board 4 onto a support base body 2, an engaging projection 28d of a slide lever 28 is automatically inserted into a locking hole 17 by an energization force of a spring part of an energization member 29, only by an action of inserting each of locking pawls 22 of a bracket 20 into the locking hole 17. Consequently, the shelf board 4 is surely fastened to the support base body 2 without especially performing an operation. The slide lever 28 is provided with an operation projection 28b on the upper part, and a user can easily perform a slide operation of the slide lever 28 when removing the shelf board 4 from the support base body 2.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an attachment structure for optional members such as a shelf board, a tray, and a box that is detachably attached to a fixture used in an office space such as an office, and a fixture provided with the same.

  The fixtures used in office spaces such as offices are equipped with optional members such as shelves, trays, boxes, etc. for placing articles such as electronic devices, and these optional members are detachably attached to the columns. There is one configured to change its height position. When working in offices, hospitals, public facilities, etc. while moving in the work space, a base equipped with casters, a column (support base) standing up connected to the base, and the upper end of the column 2. Description of the Related Art A cart apparatus (furniture) that includes a top plate attached to a rack and an optional member such as a shelf board that is detachably attached to an intermediate portion of a support column and is configured to be able to run is often used.

  Furthermore, as an optional member mounting structure, a locking claw that protrudes rearward from the rear end of the bracket is inserted into a plurality of locking holes that are drilled at predetermined intervals in the vertical direction on the mounting surface of the column. And an optional member supported by a bracket attached to the column in a cantilevered state. In this optional member mounting structure, the optional member can be detachably mounted at a desired height position corresponding to the locking hole by locking the locking claw of the bracket in the appropriately selected locking hole. it can.

  In such an option member mounting structure, generally, a hook-like hooking portion is formed by bending the protruding end side downward to the locking claw, and an article is placed on the option member and the bracket. When the external force is applied, the hook on the protruding end side of the locking claw inserted into the locking hole is hooked, and the rear end of the bracket abuts the mounting surface of the support column, which stabilizes the optional member. It can be supported by a support. On the other hand, in the above-mentioned option member mounting structure, since the locking claw is formed in a hook shape that bends downward, when an external force acts on the option member and the bracket from below, the rear end side of the bracket in the cantilever state The option member will rattle upward, with the latching part of the latching claw being pulled out, or the catching part of the catching part of the latching claw will come off and the latching claw will be pulled out of the latching hole. There is a risk of falling off.

  On the other hand, the optional member is prevented from falling off and rattling at the time of mounting by inserting the retaining member into the locking hole in which the locking claw of the optional member is locked or other locking holes. A configuration has been proposed (see, for example, Patent Documents 1 and 2).

Japanese Utility Model Publication No. 61-25842 Japanese Utility Model Publication No. 63-131552

  However, in the option member mounting structure disclosed in Patent Document 1 and Patent Document 2 described above, after the locking member is inserted into the locking hole and locked, and the optional member is disposed at a predetermined position, Another operation of inserting the retaining member into the retaining hole is required.

  For this reason, when changing the attachment position of the option member, the user temporarily removes the option member, and when the option member is attached to the desired position again, the bracket is moved or the lock claw is turned. Forgetting the optional member retaining operation (operation of the retaining mechanism) may cause the optional member to drop off or play.

  In view of the above circumstances, the present invention prevents the forgetting operation of optional members such as shelf boards, trays, and boxes from being forgotten, and allows the optional members to be suitably attached so that they do not rattle or fall off. It aims at providing the attachment structure of a member, and the fixture provided with this.

The present invention employs the following means in order to solve the above problems.
That is, the present invention is formed on the mounting surface of the fixture with a plurality of locking holes formed at intervals in the vertical direction and protruding rearward from the rear end of the bracket supporting the optional member, and the protruding end side is An optional member mounting structure comprising a locking claw that is formed in a bowl shape that bends downward, is inserted into a locking hole and locked, and is detachably mounted in a cantilevered state. A slide member provided on the bracket so as to be slidable in a direction approaching and separating from the mounting surface, and a biasing member that biases the slide member toward the mounting surface, and the bracket is attached to the mounting surface and locked. With the claw inserted into the locking hole, the end of the slide member is inserted between the upper end of the locking claw and the upper end of the locking hole into which the locking claw is inserted. To do.

According to such a configuration, with the bracket attached to the mounting surface and the locking claw inserted into the locking hole, the upper end of the locking claw and the upper end of the locking hole into which the locking claw has been inserted In the meantime, the end of the slide member is inserted to prevent the locking claw from moving toward the upper end of the locking hole. As a result, the bracket will not accidentally fall off or become loose.
Moreover, since the slide member is urged toward the mounting surface by the urging member, the engagement claw formed in a hook shape is engaged with the engagement hole, and the engagement claw and the upper end portion of the engagement hole are When the gap is formed between the slide members, the slide member is automatically inserted into the gap.

Further, the slide member may be characterized in that an operation projection for projecting on the upper surface and sliding the slide member in a direction away from the mounting surface is provided.
When removing the option member from the fixture mounting surface, the user can slide the slide member in a direction away from the mounting surface by pulling the operation projection. Thereby, the slide member can be pulled out from the gap between the locking claw and the upper end of the locking hole. Then, the locking claw can be slid upward in the locking hole, and the locking claw can be pulled out from the locking hole.

The option member may be characterized by including a rising wall portion that rises above the bracket and covers the operation protrusion.
Since the rising wall covers the operation protrusion, the slide member cannot be slid in a state in which the option member is mounted on the bracket, and the option member can be prevented from being detached from the mounting surface of the fixture due to an erroneous operation. .

The locking holes are formed in pairs on the mounting surface with a gap in the width direction, and the locking claws are formed in pairs with a gap in the width direction of the bracket. In each of the two pairs of locking holes and the locking claws spaced apart in the width direction, there are two pairs of engaging protrusions formed to protrude in the same direction as the locking claws on both sides in the direction. An engaging protrusion may be inserted between the upper end portion of the locking claw and the upper end portion of the locking hole into which the locking claw is inserted.
In this way, the locking claw is inserted into the locking hole on both sides in the width direction, and the engaging protrusion is inserted between the locking claw and the locking hole, so that the option member is stably supported and rattled. Can be reliably suppressed.

  The slide member preferably includes a pair of urging members on both sides in the width direction. Thereby, the slide operation of the slide member can be made stable.

  In addition, the present invention includes a support base that is continuous in the vertical direction, and an optional member that is detachably attached to the support base by locking a locking claw in a locking hole formed in the support base. It can also be set as the fixture characterized by providing the attachment structure of the option member as described in any one of Claims 1-3.

According to the present invention, in a state where the bracket is attached to the mounting surface and the locking claw is inserted into the locking hole, between the upper end portion of the locking claw and the upper end portion of the locking hole into which the locking claw is inserted. By inserting the end portion of the slide member, the locking claw is prevented from moving to the upper end portion side of the locking hole. Thereby, it is possible to prevent the bracket from rattling, inadvertently falling off or rattling.
In addition, since the slide member is urged toward the mounting surface by the urging member, when the locking claw formed in the hook shape is engaged with the locking hole, the locking claw and the upper end portion of the locking hole When a gap is formed between the slide member and the slide member, the slide member is automatically inserted into the gap. Therefore, the optional member supported by the bracket can be easily and reliably attached without performing a special operation.

It is a perspective view which shows the cart apparatus (furniture) which concerns on one Embodiment of this invention. FIG. 2 is a cross-sectional view taken along line X1-X1 in FIG. 1, FIG. 2A is a cross-sectional view of the support base, and FIG. 2B is a front view of the support base. It is a sectional side view which shows the attachment structure of the option member which concerns on one Embodiment of this invention. It is a perspective developed view which shows the components which comprise a bracket and the retaining mechanism. It is the top view and front view which show the structure in the case of attaching a shelf board as an option member. It is a sectional side view which shows the structure in the case of attaching a tray as an option member. It is the top view and front view which show the structure in the case of attaching a tray as an option member. It is a three-plane view showing a retaining mechanism. It is a top view which shows a state when sliding a slide lever. It is a figure which shows the flow when attaching or detaching a bracket. It is a figure which shows the flow when attaching or detaching a bracket following FIG.

  Hereinafter, with reference to the accompanying drawings, an attachment structure for an option member according to an embodiment of the present invention and a fixture including the same will be described. Here, in this embodiment, a cart apparatus is given as an example of a fixture. Moreover, although this embodiment demonstrates as an option member being a shelf board, the option member concerning this invention may be a tray, a box, etc., and is not necessarily limited to a shelf board.

  As shown in FIG. 1, the cart apparatus A of the present embodiment includes a base 1 that forms the lowest part, a support base 2 that extends upward from the base 1, and a front-rear direction T1 of the support base 2. A plurality of shelf plates (optional members) 4 that are detachably attached to the facing attachment surface 3, a top plate 5 that is attached to the upper end portion of the support base 2, and a rear end portion 5 a side of the top plate 5 Connected to the rear end portion 5a side of the top plate 5 and connected to the rear end portion 5a of the top plate 5, and is provided with an operation lever 7 that is inclined downward toward the rear. Yes. Furthermore, in the cart apparatus A of the present embodiment, an electronic device unit 8 including a tablet PC or the like is detachably connected to the rear end portion 5a side of the top plate 5.

  Here, in this embodiment, the direction indicated by the arrow T1 in FIG. 1 is the “front-rear direction”, and the direction indicated by the arrow T2 in FIG. 1 orthogonal to the “front-rear direction” is the “left-right direction” or “width direction”. And

  The base 1 is radially extended in four directions from the central portion, and four leg rods 10 whose base ends are connected to each other at the central portion, and four casters attached to the distal ends of these leg rods 10 respectively. 11. Each caster 11 is supported by a leg rod 10 so as to be rotatable about a horizontal axis, and is also supported so as to be rotatable about a vertical axis. Thereby, the cart apparatus A provided with the base 1 at the lowermost part can run on the floor surface in an arbitrary direction.

  As shown in FIG. 1, the support base 2 is formed in a cylindrical shape, and has an outer support column 12 erected by connecting a lower end portion to a central portion of the base, and a lower end from the upper end side of the outer support column 12 to an internal cavity. It can also be configured to include an inner support column 13 that fits the part side and is disposed so as to be movable forward and backward in the vertical direction T3 from the internal cavity of the outer support column 12. Further, as shown in FIG. 2, the outer support column 12 includes a cylindrical outer 14 having a substantially oval cross section formed by integrally molding aluminum or the like, and four attached brackets 15 attached to the outer 14. ing.

  The outer 14 having a substantially oval cross section forms a belt-like plane in which the front surface 14a on the side on which the shelf board 4 is mounted and the rear surface 14b on the opposite side are continuous in the vertical direction. On the front surface 14a and the rear surface 14b, mounting grooves 16 that are recessed inward and extending in the vertical direction T3 are formed on both sides in the width direction, respectively. That is, a total of four mounting grooves 16 are formed in the outer 14, two on the front side and two on the rear side.

  The mounted bracket 15 is a rod-shaped member having a substantially U-shaped cross section made of metal having a width that can be fitted into the mounting groove 16, and a substantially rectangular locking hole 17 is provided at a predetermined interval in the longitudinal direction. A plurality of through holes are formed. As a result, the front surface 14a and the rear surface 14b of the outer 14 have a configuration in which two pairs of locking holes 17 are opened at predetermined intervals along the vertical direction with a gap in the width direction.

  The operation handle 6 includes a pair of mounting bars 6b protruding rearward from the rear end portion 5a side of the lower surface of the top plate 5, and an operation bar 6a extending in the left-right direction T2 by connecting tip ends of the pair of mounting bars 6b to each other. And is formed. As shown in FIG. 1, the operation handle 6 is for the cart to run the cart device A in a predetermined direction by operating and holding it.

  The operation lever 7 is for locking the inner support column 13 slidably provided in the outer support column 12 at an arbitrary position so as not to slide. That is, when the office worker operates this operation lever 7, the locking or unlocking of the inner strut 13 by a lock mechanism (not shown) provided inside the support base 2 is switched, and the sliding movement of the inner strut 13 is controlled. The height of the support base 2 can be adjusted.

  As shown in FIG. 1, the shelf board (optional member) 4 of this embodiment is formed in a substantially flat plate shape, and its upper surface 4a is an article placement surface on which various articles used for office work are placed. . And this shelf board 4 is supported by the bracket 20 attached to the attachment surface 3 of the support base 2 by the shelf board attachment structure B of this embodiment which is mentioned later.

  As shown in FIG. 3, the shelf mounting structure B of the present embodiment includes a plurality of locking holes 17 formed in the mounting surface 3 of the support base 2 at intervals in the vertical direction T3, and the shelf plate. 4 is provided in the bracket 20 that supports the bracket 4, and is inserted into the locking hole 17 to be locked, and a locking claw 22 for detachably mounting the bracket 20 in a cantilever state, and a locking mechanism that is locked in the locking hole 17. The retaining pawl 22 is configured to include a retaining mechanism 23 for preventing the retaining pawl 22 from coming off the retaining hole 17 and coming out.

  As shown in FIG. 4, the bracket 20 of the present embodiment includes a base member 24 having a substantially rectangular plate shape, and a pair of side plates 25 and 25 provided on both sides in the width direction of the base member 24. . At this time, the pair of side plates 25 and 25 are arranged such that the interval in the left-right direction T2 is equal to the interval between the locking holes 17 and 17 formed in the front surface 14a and the rear surface 14b of the outer 14, respectively. .

  The base member 24 includes a rectangular plate-like plate portion 24a, and ribs (rising wall portions) 24b that rise from the four sides around the plate portion 24a in a direction (backward) perpendicular to the surface of the plate portion 24a.

As shown in FIG. 5, the shelf plate 4 is supported by the base member 24 via the shelf support bracket 40.
The shelf support bracket 40 is U-shaped in plan view, and is fixed to the plate portion 24a of the base member 24 with bolts 41 or the like, and is extended to both sides in the width direction from the plate portion 24a, and a fixing portion 40a. And a pair of arm portions 40b, 40b extending away from the base member 24 in a direction perpendicular to both end portions in the width direction.

A square-shaped support frame 42 is placed on the fixed portion 40a and the arm portions 40b and 40b of the shelf board support bracket 40.
As shown in FIGS. 3 and 5, the shelf plate 4 has a frame portion 4 b that rises upward on the outer peripheral portion thereof, and the upper end portion of the frame portion 4 b is a folded portion 4 c having an inverted J shape. ing. By placing the folded portion 4 c on the support frame 42, the shelf board 4 is supported on the base member 24 of the bracket 20 via the support frame 42 and the shelf board support bracket 40.

  Here, the shelf plate 4 is provided on the bracket 20, but an optional member other than the shelf plate 4 can also be used to attach to the support base 2. As a specific example, a tray (optional member) 60 may be provided on the bracket 20 as shown in FIGS. The tray 60 includes a fixed plate portion 62 fixed to the base member 24 of the bracket 20 by bolts 61 and the like, and a bottom plate portion extending from the lower end of the fixed plate portion 62 to the surface of the base member 24 and extending toward the operation protrusion 28b. 63 and a front wall 64 that rises in parallel with the base member 24 from the tip of the bottom plate 63 and has a substantially U-shaped cross section.

Now, as shown in FIG. 4, the side plates 25, 25 are provided integrally with the plate portion 24a. Each side plate 25 is formed so as to extend from the plate portion 24a in a direction orthogonal to the plate portion 24a toward the side opposite to the side on which the rib 24b is formed. Each side plate 25 has abutting surfaces 25a formed in parallel with the surface of the plate portion 24a. Further, each side plate 25 is formed with a substantially L-shaped (saddle-shaped) locking claw 22 that protrudes further away from the plate portion 24a than the abutting surface 25a. Thereby, the bracket 20 is formed with two pairs of locking claws 22, 22 spaced apart in the width direction. Each locking claw 22 has an extending part 22a extending in a direction orthogonal to the plate part 24a side, and an orthogonal part 22b extending in a direction orthogonal to the extending part 22a from the tip part of the extending part 22a. A facing surface 22c parallel to the butting surface 25a is formed on the part 22b on the side facing the butting surface 25a. Here, the distance between the abutting surface 25 a and the facing surface 22 c is formed so as to be substantially equal to the plate thickness of the fitting 15. Further, the plate thickness of the locking claw 22 is formed to be slightly smaller than the width of the locking hole 17 formed in the fitting 15.
A plurality (two in this embodiment) of such locking claws 22 are arranged in the same row in the direction in which the orthogonal portion 22b extends.

  Further, in each side plate 25, the side on which the base member 24 is provided is on the same side as the direction in which the orthogonal portion 22 b extends from the extending portion 22 a to the locking claw 22 with respect to the base member. 2, a receiving portion 27 is formed along the rib 24 b of the base member 24.

  Each side plate 25 and the rib 24b located on the opposite side to the side where the receiving portion 27 is formed in the base member 24 are formed so as to be located in the same plane orthogonal to the plate portion 24a. The upper surface 20a is formed.

The retaining mechanism 23 includes a slide lever 28 and an urging member 29. The slide lever 28 slides along the direction (front-rear direction T1) perpendicular to the surface of the plate portion 24a on the upper surface 20a of the bracket 20. It is provided as possible.
As shown in FIGS. 4 and 8, the slide lever 28 includes a base portion 28a formed along the upper surface 20a of the bracket 20, and one end of the base portion 28a, and is orthogonal to the upper surface 20a of the bracket 20. And an operation protrusion 28b formed to protrude in the separating direction. Here, the operation protrusion 28b has a triangular shape in which the protrusion height from the base portion 28a gradually increases in the front-rear direction T1 from the center portion to the end portion of the base portion 28a. Here, when the option member is the shelf plate 4, the folded portion 4 c can be arranged so as to cover the operation protrusion 28 b of the slide lever 28 on the side close to the bracket 20. Thereby, the operation protrusion 28b cannot be operated while the shelf board 4 is attached.

  A pair of engaging projections 28d are formed on the other end side of the base portion 28a on both sides in the width direction (left-right direction T2) so as to protrude in the same direction as the locking claws 22.

  In the base portion 28 a, an accommodation recess 28 c that accommodates the urging member 29 is formed on the side facing the upper surface 20 a of the bracket 20.

The biasing member 29 includes a fixed plate portion 29a fixed to the plate portion 24a of the base member 24, a bent portion 29b extending in a direction orthogonal to the fixed plate portion 29a, and a side separated from the fixed plate portion 29a in the bent portion 29b. Thus, it has a crank-like cross-sectional shape including a spring portion 29c that rises in a direction parallel to the fixed plate portion 29a.
The fixed plate portion 29a is fixed to the plate portion 24a of the base member 24 with screws or the like.
The spring portion 29c is formed to extend from the bent portion 29b to both sides in the width direction (left-right direction T2). The spring portion 29c is provided so as to extend over substantially the entire width direction of the housing recess 28c of the slide lever 28. And both ends of the spring portion 29c are sandwiched between the boss 35 formed in the housing recess 28c and the inner wall surface of the housing recess 28c.

In such a retaining mechanism 23, the spring portion 29c of the urging member 29 extends in a flat plate shape in the accommodation recess 28c in normal times.
Then, from this state, the slide lever 28 is moved from the engagement protrusion 28d side toward the base member 24 side with respect to the base member 24 along the front-rear direction T1 (this direction is referred to as the front here, and the opposite direction is set to the opposite direction). When it is slid, the spring portion 29c of the urging member 29 is elastically deformed in the housing recess 28c as shown in FIG. 9A. At this time, both sides in the width direction of the spring portion 29c are elastically deformed along the sliding direction of the slide lever 28 with respect to the portion connected to the bent portion 29b in the central portion. In this state, the spring portion 29c urges the slide lever 28 rearward from the base member 24 side toward the engagement protrusion 28d. By releasing the slide of the slide lever 28 from this state, as shown in FIG. 9B, the slide lever 28 returns to its original position by the urging force of the spring portion 29c.

In the shelf mounting structure B of the present embodiment configured as described above, when the shelf 4 is attached to the support base 2 of the cart apparatus A, first, as shown in FIG. The respective locking claws 22 of the side plates 25, 25 of the bracket 20 thus inserted are inserted into arbitrary locking holes 17, 17 formed in the mounting bracket 15 of the support base 2.
As shown in FIG. 10B, when the extending portions 22a and the orthogonal portions 22b of the respective locking claws 22 are inserted into the respective locking holes 17, the front end surface 28f of the engaging projection 28d of the slide lever 28 is Then, it abuts against the surface of the mounting bracket 15. When the bracket 20 is further pushed in, as shown in FIG. 9A, the spring portion 29c of the biasing member 29 is elastically deformed in the accommodating recess 28c, and the slide lever 28 is engaged with the bracket 20 with the engagement protrusion. It moves relatively forward from the 28d side toward the base member 24 side. In this state, the spring portion 29c urges the slide lever 28 rearward from the base member 24 side toward the engagement protrusion 28d.

  As shown in FIG. 11A, when the bracket 20 is further pushed in, further pushing operation of the bracket 20 is restricted when the abutting surface 25a of the side plate 25 abuts against the surface of the mounted bracket 15. The In this state, the orthogonal part 22b of each locking claw 22 enters the back of the locking hole 17, and is located on the back side of the attachment fitting 15 in a plan view.

  Next, as shown in FIG. 11 (b), the bracket 20 is moved downward while being pressed against the fitting 15. Then, the orthogonal portion 22 b of each locking claw 22 enters the back side of the attachment fitting 15 below each locking hole 17. Thereby, when the extension part 22a of the latching claw 22 hits the lower end of each latching hole 17, the downward movement of the bracket 20 is restricted. In this state, the mounting bracket 15 is sandwiched between the opposing surface 22c of the orthogonal portion 22b of the locking claw 22 and the abutting surface 25a of the side plate, and rattling of the bracket 20 is suppressed.

  In this state, a gap is formed in each locking hole 17 above the extending portion 22a inserted into the locking hole 17. Then, since the slide lever 28 is urged by the spring portion 29c of the urging member 29 in a direction approaching the engagement projection 28d, a gap is formed above the locking hole 17 so that the slide lever 28 is formed. The energizing power of is released. As a result, the slide lever 28 is inserted into the gap, and the engaging projection 28 d comes into contact with the upper end of the locking hole 17.

  As a result, the bracket 20 cannot be moved upward, and the shelf board 4 and the tray 60 attached to the bracket 20 are not accidentally dropped or rattled.

When removing the shelf board 4 and the tray 60, first, from the state shown in FIG. 11B, as shown in FIG. 11A, the operation projection 28b of the slide lever 28 is separated from the support base 2 (see FIG. Pull forward.
Then, the slide lever 28 slides in the aforementioned direction by elastically deforming the spring portion 29c of the urging member 29, and accordingly, the engagement protrusion 28d is pulled out from the locking hole 17.

In this state, the bracket 20 is pulled upward as shown in FIG. Then, the engagement protrusion 28d is in a state where the tip end surface 28f abuts against the attachment fitting 15, and maintains the state of being pulled out from the locking hole 17.
In this state, the bracket 20 is further pulled up until the extended portion 22a of the locking claw 22 hits the upper end of the locking hole 17.

  Subsequently, as shown in FIG. 10A, when the bracket 20 is slid in the direction away from the support base 2 (frontward), the locking claw 22 is pulled out from the locking hole 17, and is removed from the support base 2. Removal is complete.

According to the above-described configuration, when attaching the shelf board 4 or the tray 60 to the support base 2, only the operation of inserting the locking claws 22 of the bracket 20 into the locking holes 17 can be used. 28 d is automatically inserted into the locking hole 17 by the biasing force of the spring portion 29 c of the biasing member 29.
Accordingly, the shelf plate 4 and the tray 60 can be securely fixed to the support base 2 without any particular operation, and the mounting state of the shelf plate 4 and the tray 60 is unstable due to forgetting to attach the retaining member. It is possible to prevent the shelf board 4 and the tray 60 from dropping off unnecessarily.

  Further, since the operation projection 28b is provided on the slide lever 28, the user can easily perform the slide operation of the slide lever 28 when removing the shelf board 4 or the tray 60 from the support base 2. Excellent operability.

  Further, in a state in which the shelf plate 4 is attached to the bracket 20, the folded portion 4 c provided on the outer peripheral portion of the shelf plate 4 is disposed so as to cover the operation protrusion 28 b of the slide lever 28. Thereby, while the shelf board 4 is attached, the operation protrusion 28b cannot be operated, and the shelf board 4 and the bracket 20 can be prevented from being inadvertently detached from the support base 2.

  Further, on both sides in the width direction of the support base 2, the locking claws 22 are inserted into the locking holes 17, and the engaging protrusions are inserted between the locking claws 22 and the locking holes 17, thereby the shelf board 4. Can be stably supported, and rattling can be reliably suppressed.

  Moreover, since the slide lever 28 includes two pairs of spring portions 29c on both sides in the width direction, the slide operation of the slide member 28 can be made stable.

  As mentioned above, although one embodiment of the attachment structure of the optional member (the attachment structure of the shelf board) and the cart apparatus provided with the same according to the present invention has been described, the present invention is not limited to the above one embodiment, Changes can be made as appropriate without departing from the spirit of the invention.

  For example, in the present embodiment, the shelf plate 4 and the tray 60 are provided on the bracket 20, but it goes without saying that optional members other than the shelf plate 4 and the tray 60 can be used to attach to the support base 2.

Moreover, in this embodiment, although the attachment structure B of optional members, such as a shelf board, a tray, and a box, provided in the cart apparatus A has been described, it is not necessary to limit the furniture of the present invention to the cart apparatus A. The attachment structure of the optional member concerning this invention is applicable as a structure for attaching optional members, such as a shelf board, a tray, and a box, to every furniture, such as furniture and a partition wall.
In addition to this, as long as it does not depart from the gist of the present invention, the configuration described in the above embodiment can be selected or changed to another configuration as appropriate.

1 Base 2 Support base 3 Mounting surface 4 Shelf board (optional member)
4a Upper surface 4b Frame portion 4c Folding portion 5 Top plate 6 Operation handle 7 Operation lever 8 Electronic device unit 10 Foot rod 11 Caster 12 Outer strut 13 Inner strut 14 Outer 15 Mounted bracket 16 Mounting groove 17 Locking hole 20 Bracket 22 Locking Claw 22a Extension part 22b Orthogonal part 22c Opposing surface 23 Retaining mechanism 24 Base member 24a Plate part 24b Rib (rise wall part)
25 Side plate 25a Abutting surface 27 Receiving portion 28 Slide lever 28a Base portion 28b Operation protrusion 28c Housing recess 28d Engaging protrusion 28f End surface 29 Biasing member 29a Fixing plate portion 29c Spring portion 40 Shelf plate support bracket 40a Fixing portion 40b Arm portion 41 Bolt 42 Support frame 60 Tray (optional member)
62 Fixed plate portion 63 Bottom plate portion 64 Front wall portion

Claims (6)

A hook-like shape that is formed on the mounting surface of the fixture with a plurality of locking holes drilled at intervals in the vertical direction and protruding rearward from the rear end of the bracket that supports the optional member, and the protruding end bends downward An optional member mounting structure comprising a locking claw for detachably mounting the bracket in a cantilever state by being inserted into the locking hole and locked.
A slide member provided on the bracket so as to be slidable in a direction approaching and separating from the mounting surface;
A biasing member that biases the slide member toward the mounting surface;
With the bracket attached to the mounting surface and the locking claw inserted into the locking hole, between the upper end of the locking claw and the upper end of the locking hole into which the locking claw has been inserted. An attachment structure for an optional member, wherein an end of the slide member is inserted.   2. The option member mounting structure according to claim 1, wherein the slide member protrudes from an upper surface thereof, and is provided with an operation protrusion for sliding the slide member in a direction away from the mounting surface. .   The option member mounting structure according to claim 2, wherein the option member includes a rising wall portion that rises above the bracket and covers the operation protrusion. The locking holes are formed in pairs on the mounting surface at intervals in the width direction,
The locking claws are formed in pairs with a gap in the width direction of the bracket,
The slide member has a pair of engaging protrusions formed on both sides in the width direction so as to protrude in the same direction as the locking claw,
In each of the two pairs of the locking holes and the locking claws spaced apart in the width direction, between the upper end portion of the locking claw and the upper end portion of the locking hole into which the locking claw is inserted. The attachment structure for an optional member according to any one of claims 1 to 3, wherein the engagement protrusion is inserted into the attachment member.   5. The option member mounting structure according to claim 1, wherein the slide member includes two pairs of the biasing members on both sides in the width direction. 6. A support base which is continuous in the vertical direction;
An optional member that is detachably attached to the support base by locking a locking claw in a locking hole formed in the support base;
A fixture comprising the option member mounting structure according to any one of claims 1 to 5.

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