JP5043326B2 - Casters for storage furniture - Google Patents

Description

  The present invention relates to a caster for storage furniture in which wheels are projected from a cabinet in the storage furniture to move the storage furniture, and the storage furniture is installed by sinking the wheels into the casters.

  In Japanese Utility Model Laid-Open No. 56-93305, a pair of inclined grooves are formed on both side walls of a bearing frame fixed to the lower surface of a raised bottom plate in a cabinet, and a rotating shaft of a wheel is slidably supported in the inclined grooves. A device is disclosed in which when the cabinet is pulled forward, the wheel that has been sunk in the cabinet protrudes from the lower end of the cabinet, and when the cabinet is stopped, the wheel sinks into the lower end of the cabinet due to the weight of the cabinet. However, this device is easy to move forward, but cannot move backward, so it cannot be put to practical use.

Japanese Utility Model Laid-Open No. 56-93303 discloses that a pair of inclined grooves are formed on both side walls of a bearing frame that freely rotates in a horizontal direction using a free wheel in order to eliminate the disadvantages of the above-described device. When the rotating shaft of the wheel is slidably supported in the inclined groove and the cabinet is pulled forward or the cabinet is pushed backward, the bearing frame is reversed and the wheel that was sinking in the cabinet protrudes from the cabinet. An apparatus is disclosed. However, even when the cabinet is pulled or pushed, due to the weight of the cabinet, the lower end of the cabinet is in close contact with the floor surface, and it is impossible to reverse the bearing or protrude the wheel. It is impossible.
Japanese Utility Model Publication No. 56-93305 Japanese Utility Model Publication No. 56-93303

  The present invention provides a storage furniture caster that moves a storage furniture by protruding a wheel from the lower end of the cabinet, sinks the wheel into the cabinet, and grounds the lower end of the cabinet to the floor to stabilize the storage furniture. It is what.

The caster for storage furniture according to the first aspect of the present invention is a movable frame (4) 4 in which a pair of left and right fixed frames 1 fixed to the lower surface of a raised bottom plate 3 in a cabinet (2) are provided with wheels (6) on the front and rear. Is inserted into the left and right side plates 7 of the fixed frame 1 and the lower ends of a pair of front and rear parallel links (5) and the left and right side plates 9 of the movable frame (4). Are connected to each other by a connecting shaft (10), and the connecting shaft (10) is connected to the lower portion of the left and right side plates (9) of the movable frame (4) from the front end located in front of the lower portion of the pivot (8). 8) A guide groove (11) formed in an arc shape centering on the pivot (8) is passed through the rear end located on the rear side, and the movable frame (4) is tilted forward by the cabinet (2). 4 does not move forward with the pivot (8) as a fulcrum The wheel (6) protrudes from the cabinet (2), and the movable frame (4) moves upward with the pivot (8) as a fulcrum and moves upward due to the backward tilt of the cabinet (2). In the storage furniture caster formed so that the wheel (6) sinks in the cabinet (2), it protrudes from the front of the cabinet (2) at the center of the linkage (13) connecting the left and right movable frames (4). The operation rod (14) to be operated is fixed .

  The storage furniture caster according to claim 1 has a pair of left and right fixed frames (1) fixed to the lower surface of the raised bottom plate of the cabinet (2), and the tip of the operating rod (14) protrudes from the cabinet (2). When (2) is tilted forward, the movable frame (4) connected to the fixed frame (1) by a pair of front and rear parallel links (5) moves downward and moves the wheel (6) to the cabinet ( It protrudes from the lower end of 2). Therefore, when the cabinet (2) inclined forward is returned to its original position, the wheel (6) comes into contact with the floor surface and the cabinet (2) floats from the floor, so that the storage furniture can be easily moved forward or backward. It is. When the cabinet (2) is tilted rearward in such a state that the wheel (6) is in contact with the floor surface (12), the movable frame (4) moves upward and moves the wheel (6) to the cabinet ( 2) Sink inside. Therefore, when the cabinet (2) inclined backward is returned to the original position, the lower end of the cabinet (2) is grounded to the floor surface, and the storage furniture is stabilized.

  Also, when the wheel (6) is in contact with the floor surface (12) and the cabinet (2) is lifted from the floor surface (12), the operation rod (14) protruding from the front surface of the cabinet (2) is pushed in to move. Since the frame (4) moves rearward and the wheel (6) sinks into the cabinet (2), the lower end of the cabinet (2) is grounded to the floor surface (12), and the storage furniture is stabilized.

  The caster for storage furniture of claim 1 according to the present invention can easily move the storage furniture by causing the wheel (6) to protrude from the cabinet (2) by tilting the cabinet (2) forward. On the contrary, by tilting the cabinet (2) backward, the wheel (6) can be sunk in the cabinet (2) and can be easily stabilized on the floor (12). Moreover, when the operating rod (14) is pushed in with the wheel (6) protruding from the cabinet (2), the lower end of the cabinet (2) can be grounded to the floor surface (12). This is especially useful when trying to install along

Hereinafter, the embodiment of claim 1 according to the present invention with reference to FIGS. 1 to 5 will be described in detail. 1 is a side view of a caster for storage furniture according to the present invention, FIG. 2 is a partially cutaway plan view of the same, FIG. 3 is a partially cutaway front view of the same, and FIGS. 4 and 5 show the operating state of the caster. It is explanatory drawing.
It is.

  Reference numeral (1) denotes a pair of left and right metal fixing frames that are fixed to the lower surface of the bottom raising plate (3) of the cabinet (2) in the storage furniture, and has a shape in which both front and rear ends and a lower end are opened. Reference numeral (4) denotes a metal movable frame (4) having an opening at the front and rear and the lower end, which is inserted into a pair of left and right fixed frames (1) and is shaken into the fixed frame (1) by a parallel link (5). The wheel (6) is axially attached inside the front and rear.

  The parallel link (5) has an upper end pivotally attached to the front and rear sides of the left and right side plates (7) of the fixed frame (1) by a pivot (8) and a lower end of the front and rear sides of the left and right side plates (9) of the movable frame (4). It is attached to the shaft by the connecting shaft (10). The connecting shaft (10) penetrates the left and right side plates (9) of the movable frame (4), and the projecting ends of the connecting shafts (10) are arcuate guide grooves (11) formed on the left and right side plates (7) of the fixed frame (1). And is fixed to the lower end of the parallel link (5). Further, the guide groove (11) is at a position where the rear end (11b) is higher than the front end (11a). Therefore, when the connecting shaft (10) abuts the front end (11a) of the guide groove (11), the wheel (6) protrudes from the cabinet (2), but the rear end (11b) of the guide groove (11). When the connecting shaft (10) abuts, the wheel (6) sinks into the cabinet (2).

Figure 1, as shown in FIG. 2, to secure the cabinet raised plate of (2) a pair of right and left fixed frame (1) on the lower surface (3), in the ground state illustrated in FIG. 3 (1), 3 (2 ) , When the upper end of the cabinet (2) is inclined forward, the movable frame (4) moves forward by its own weight until the connecting shaft (10) reaches the front end (11a) of the guide groove (11). The wheel (6) is protruded from the lower end of the cabinet (2). Even if the tilted cabinet (2) is returned to its original state, the movable frame (4) should be moved forward, and the wheel (6) is kept in the protruding state, as shown in FIG. 6) comes into contact with the floor surface (12), and the cabinet (2) floats from the floor surface (12) so that the storage device can easily travel.

As shown in FIG. 4 (1) , the wheel (6) is in contact with the floor surface (12) and the cabinet (2) is lifted from the floor surface 12, as shown in FIG. When the upper end of the frame is inclined rearward, the movable frame (4) moves backward by its own weight until the connecting shaft (10) reaches the rear end (11b) at a higher position than the front end (11a) of the guide groove (11). The wheel (6) is submerged in the cabinet (2). Even if the cabinet (2) inclined backward is returned to its original position, the movable frame (4) is a retracted rod, and the wheels (6) remain in the cabinet (2) . As shown, the lower end of the cabinet (2) is grounded, and the storage furniture is in a stable state.

  Reference numeral (13) is a linkage connecting the left and right movable frames (4), and both left and right ends are rotatably attached to the side plates (9) of the movable frame (4). Reference numeral (14) denotes an operating rod in which the rear end is connected to the central portion of the continuous rod (13), and the front end of the operation rod is forward of the vertically long through hole (16) formed in the front plate (15) of the cabinet (2). Protruding.

As shown in FIGS. 1 to 3 , a pair of left and right fixed frames (1) are fixed to the lower surface of the raised bottom plate (3) in the cabinet (2), and the front end of the operating rod (14) is connected to the front plate of the cabinet (2). It protrudes from the vertically long through hole (16) drilled in (15). When the upper end of the cabinet (2) is inclined forward as shown in FIG. 4 (2) in the state shown in FIG. 4 (1) , the movable frame (4) has a connecting shaft (10) with a guide groove (11). ) To reach the front end (11a), the wheel (6) protrudes from the lower end of the cabinet (2), and the operating rod (14) slightly protrudes. Even if the cabinet (2) inclined forward is returned to its original state, the movable frame (4) is a saddle that has advanced, and the protruding state of the wheels (6) is maintained, as shown in FIG. The wheel (6) comes into contact with the floor surface (12), and the cabinet (2) floats from the floor surface (12) so that the storage furniture can easily travel.

In the state shown in FIG. 5 (1) , as shown in FIG. 5 (2) , when the upper end of the cabinet (2) is tilted rearward, the movable frame (4) has a connecting shaft (10) with a guide groove (11). ) To the rear end (11b) which is higher than the front end (11a), and the wheel (6) is submerged in the cabinet (2). Even if the cabinet (2) inclined backward is returned to its original position, the movable frame (4) is a reed saddle, and the wheels (6) remain in the cabinet (2) . As shown, the lower end of the cabinet (2) is grounded, and the storage furniture is in a stable state.

5 (1), when the operating rod (14) protruding from the cabinet (2) is pushed into the cabinet (2), the movable frame (4) moves backward as shown in FIG. 5 (3). The wheel (6) sinks into the cabinet (2), and the storage furniture becomes stable.

It is a side view which shows embodiment of the caster for storage furniture based on this invention. It is a partially notched top view of embodiment same as the above. It is a partially cutaway front view of an embodiment same as the above. It is a side view which shows the operation | movement order of the caster for storage furniture same as the above. It is a side view which shows the operation | movement order of the caster for storage furniture same as the above.

DESCRIPTION OF SYMBOLS 1 Fixed frame 2 Cabinet 3 Raised bottom plate 4 Movable frame 5 Parallel link 6 Wheel 7 Left and right both sides plate of fixed frame 8 Pivot of upper end of parallel link 9 Left and right side plate of movable frame 10 Connecting shaft 11 of lower end of parallel link 11 Guide groove 11a Front end of guide groove 11b Rear end of guide groove 12 Floor 13 Connection rod 14 Operation rod 15 Front plate 16 Through hole

Claims (1)

A movable frame (4) provided with wheels (6) at the front and rear is slidably inserted into a pair of left and right fixed frames (1) fixed to the lower surface of the raised bottom plate (3) in the cabinet (2), and the fixed frame. The left and right side plates 7 of (1) are connected to the lower ends of a pair of front and rear parallel links (5) and the left and right side plates (9) of the movable frame (4) with the upper ends pivotally attached by pivots (8). The connecting shaft (10) is located at the lower part of the left and right side plates (9) of the movable frame (4), from the front end positioned on the front side below the pivot shaft (8), to the rear side of the pivot shaft (8). over the rear end of, the pivot shaft (8) is passed through the guide groove formed in a circular arc shape (11) around a, the inclination of the front of the cabinet (2), a movable frame (4) is a pivot (8) It turns as a fulcrum and descends while moving forward, and the wheel (6) is cabinet. The movable frame (4) protrudes from (2) and tilts backward from the cabinet (2), and the movable frame (4) moves upward with the pivot (8) as a fulcrum and moves upward, and the wheel (6) is moved into the cabinet (2). In the caster for storage furniture formed so as to sink, an operation rod (14) protruding from the front surface of the cabinet (2) is fixed to a central portion of the linkage connecting the left and right movable frames (4). Casters for storage furniture.

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