JP3159186U - Caster fixture - Google Patents

Abstract

Provided is a caster fixture that is easy to operate and can more reliably inhibit the movement of a base. A caster fixing tool protrudes to the outside of a base 90 from a rotating plate 2 provided so as to be rotatable around an axis of a rotating shaft 1 erected on a bottom surface 91. The rotation lever 3 that can rotate the rotation plate 2 and the movement of the base 90 by prohibiting the movement of the base 90 by pressing the floor surface and the movement of the base 90 by releasing the pressure are provided. The lock mechanism 6 includes a lock lever 7 having one end connected to each lock mechanism 6 and the other end pivotally supported on the outer peripheral portion of the rotating plate 2. [Selection] Figure 1

Description

  The present invention relates to a caster fixture capable of prohibiting movement of a base having a plurality of casters disposed on a bottom surface.

  For example, in a medical cart used for transporting a medical instrument, it is required that the medical cart can be freely moved and can be reliably prohibited from moving at a desired position. Generally, casters are provided on the bottom surface of such a base so that the base can be moved freely. Moreover, the thing of patent document 1 is known as a caster fixing tool which prohibits the movement of a base at a desired position. According to this caster fixture, the caster fixture which can lift a caster from a floor surface by pushing down a lock pedal is provided for every caster. Therefore, by depressing the lock pedals of all caster fixtures, it is possible to reliably lift the casters from the floor and prohibit the movement of the base.

  However, with this caster fixture, it is necessary to push down the lock pedals corresponding to the number of casters, and the operation is troublesome in the case of a base that repeatedly moves and fixes. In addition, if you forget to press down the lock pedal of some casters, if the force is applied to the base by mistake, the base may move.

  On the other hand, the caster fixing tool of patent document 2 is proposed. According to this caster fixture, the base is provided with one caster fixture. Then, by depressing one lock pedal, all casters can be lifted from the floor surface, and the movement of the base can be prohibited by one operation.

Japanese Patent No. 3689307 JP 2009-12600 A

  However, in the caster fixture described in Patent Document 2, only one caster fixture is provided on the base, and the base may become unstable. In addition, when the base is wide, a large caster fixing tool is required.

  The present invention has been made in view of such conventional problems, and provides a caster fixture that is easy to operate and can more reliably prohibit the movement of a base.

  In order to solve the above-described problem, the caster fixture according to claim 1 is characterized in that in a caster fixture capable of prohibiting movement of a base having a plurality of casters disposed on the bottom surface, the caster fixture is provided on the bottom surface. A rotating plate provided so as to be rotatable about the axis of the provided rotating shaft, a rotating lever protruding from the rotating plate to the outside of the base, and capable of rotating the rotating plate; While prohibiting the movement of the base by pressing the floor, a plurality of lock mechanisms that enable the movement of the base by releasing the pressure, one end is connected to each lock mechanism, And a lock lever pivotally supported on the outer peripheral portion of the rotating plate.

  The caster fixture according to claim 2 is characterized in that, in claim 1, the pivot lever is fixed to prohibit the movement of the base by being pushed down, and the base can be moved by being pushed down. And a release lever.

  The caster fixture according to claim 3 is characterized in that, in claim 1, the pivot lever prohibits the movement of the base by pulling in one direction parallel to the bottom surface, and the other direction parallel to the bottom surface. It is possible to move the base by pulling on the base.

  According to a fourth aspect of the present invention, there is provided a caster fixture according to any one of the first to third aspects, wherein the lock mechanism extends radially from the rotating plate and is fixed to the bottom surface, and faces the fixed arm. A swinging arm provided on the bottom surface of the bottom surface of the swinging arm, and a pressing plate that presses the floor surface by biasing means. The other end of the fixed arm is pivotally supported by the other end of the fixed arm, and between the one end of the fixed arm and the one end of the swing arm, the one end of the fixed arm and the one end of the swing arm are close to each other. A swing member for separating is provided, and one end of the lock lever is connected to the swing member.

  The caster fixture according to claim 5 is characterized in that, in claim 4, the swinging member is one end of the fixed arm, and is provided with a first shaft provided perpendicular to the longitudinal direction and parallel to the bottom surface. A first plate, one end of which is pivotally supported by the first shaft; a second shaft provided at one end of the swing arm, perpendicular to the longitudinal direction and parallel to the bottom surface; and one end of the second shaft A second plate that is pivotally supported, and a third shaft that is provided in parallel to the first axis and the second axis, and to which the other end of the first plate and the other end of the second plate are pivotally supported. One end of the lock lever is pivotally supported on the third shaft, and by pushing the lock lever toward one end of the fixed arm, one end of the fixed arm and one end of the swing arm are By approaching and pulling the lock lever to the other end of the fixed arm, one end of the fixed arm and the swinging And one end of the arm is that away.

  The caster fixture according to claim 6 is characterized in that, in claims 1 to 5, the base is an article installation table, a medical device, a storage shelf, a TV stand, a carriage, a transport vehicle, a desk, a chair, a cart, a wagon. A cart, a baby carriage, a stroller, a bookcase, a locker, a display shelf, a bed, a whiteboard, a piano, an organ, a trash can, a clothesline support, an advertising board, or an advertising tower.

  In the caster fixture according to the first aspect, a plurality of lock mechanisms can be operated by one operation of the rotating lever, and the operation can be performed even in the case of a base that frequently repeats movement and fixation. Simple. In addition, since this caster fixture has a plurality of locking mechanisms, it can receive the load of the base over a wide area, and the base is more stable. Therefore, according to the caster fixture according to claim 1, the operation is simple and the movement of the base can be prohibited more reliably.

  In the caster fixture according to claim 2, the movement of the base can be prohibited by depressing the fixing lever and the movement of the base can be performed by depressing the release lever. Even if it is a base that can be operated with feet and repeats moving and fixing, the operation is simple.

  In the caster fixture according to the third aspect, since the movement of the base can be prohibited or enabled by operating one rotation lever to the left and right, the caster fixture can be reduced in size.

  In the caster fixture according to the fourth aspect, the lock mechanism is provided with a swing member, and the swing member can bring one end of the fixed arm and one end of the swing arm close to or away from each other. Further, since a pressing plate that presses the floor surface by the urging means is provided at one end of the swing arm, the movement of the base can be prohibited or enabled with a simple structure.

  In the caster fixture according to a fifth aspect of the present invention, in the swing member, the other end of the first plate and the other end of the second plate are pivotally supported by a third shaft in a hinge shape. One end of the first plate and one end of the second plate are pivotally supported by one end of the fixed arm and one end of the swing arm by the first shaft and the second shaft. Since one end of the lock lever is pivotally supported on the third shaft, one end of the swing arm can be easily moved closer to or away from one end of the fixed arm by pushing or pulling the lock lever. .

  In the caster fixture according to claim 6, if the base is an article installation table, a medical device, a storage shelf, a TV stand, a cart, a transport vehicle, etc., the function of the caster fixture can be sufficiently exhibited. .

The bottom perspective view of a base concerning the caster fixing tool of Embodiment 1. FIG. 4 is an exploded perspective view of a lock mechanism and a lock lever according to the caster fixture of the first and second embodiments. FIG. 4 is a partially enlarged perspective view of the caster fixing tool when the fixing lever is pushed down according to the caster fixing tool of the first embodiment. FIG. 4 is a partially enlarged cross-sectional view of the lock mechanism when the fixing lever is pushed down according to the caster fixture of the first embodiment. FIG. 4 is a partially enlarged perspective view of the caster fixture when the release lever is pushed down according to the caster fixture of the first embodiment. FIG. 4 is a partially enlarged cross-sectional view of the lock mechanism when the release lever is pushed down according to the caster fixture of the first embodiment. The bottom perspective view of a base concerning the caster fixing tool of Embodiment 2.

  Embodiments 1 and 2 in which a caster fixture according to the present invention is embodied in a medical cart will be described below with reference to the drawings. FIG. 1 is a perspective view of a medical cart 90 in which the caster fixture of Embodiment 1 is disposed on a bottom surface 91 as viewed from the bottom surface direction. Therefore, the upper front direction in FIG. 1 is the floor surface. The medical cart 90 is used for transporting medical instruments, and four casters 92 are disposed on the bottom surface 91. Here, the medical cart 90 is a “base”.

  As shown in FIG. 1, the caster fixture has a rotating plate 2, a rotating lever 3, a plurality of lock mechanisms 6, and a lock lever 7. The rotating plate 2 has a rectangular plate shape and is provided so as to be rotatable around the axis of the rotating shaft 1 erected on the bottom surface 91. The rotation lever 3 includes a fixed lever 4 that prohibits movement of the medical cart 90 by being pushed down, and a release lever 5 that enables movement of the medical cart 90 by being pushed down. The fixing lever 4 includes a push lever 4a and an operation lever 4b, and the release lever 5 includes a push lever 5a and an operation lever 5b. A part of the push levers 4a and 5a protrudes to the outside of the medical cart 90 and can be easily pushed down by a foot. When the push lever 4a is pushed down, the operation lever 4b is pushed and the rotating plate 2 rotates clockwise. When the push lever 5a is pushed down, the operation lever 5b is pushed and the rotating plate 2 rotates counterclockwise. Note that the operation lever 4b and the push lever 5a are urged by a spring, which is to facilitate the operation of the fixing lever 4 and the release lever 5. Four locking mechanisms 6 are used, and prohibit the movement of the medical cart 90 by protruding downward from the bottom surface 91 (upward front direction in FIG. 1, hereinafter the same), and upward (downward rearward direction in FIG. The medical cart 90 can be moved by retracting to the same below. One end of each of the four lock levers 7 is connected to each lock mechanism 6, and the other end is pivotally supported at the four corners of the rotating plate 2. The lock lever 7 projects the lock mechanism 6 downward from the bottom surface 91 or retreats upward by the rotation of the rotation plate 6.

  FIG. 2 is an exploded perspective view of the lock mechanism 6 and the lock lever 7. As shown in FIG. 2, the lock mechanism 6 includes a fixed arm 10, a swing arm 20, and a swing member 30. The fixed arm 10 includes a fixed plate 11 that extends radially from the rotating plate 2 and is fixed to the bottom surface 91, and side plates 12 that extend vertically from both longitudinal ends of the fixed plate 11. Bolt holes 13 and 14 through which the bolts 31 and 40 pass are formed in the side plate 12 on the one end 10a side and the other end 10b side of the fixed arm 10.

  The oscillating arm 20 includes an oscillating plate 21 provided to face the fixed arm 10, and a side plate 22 extending vertically from both ends in the longitudinal direction of the oscillating plate 21 in the direction of the fixed arm 10. The swing arm 20 can be loosely inserted between the two side plates 12 of the fixed arm 10. Further, bolt holes 23 and 24 through which the bolts 32 and 40 pass are formed in the side plate 22 on the one end 20a side and the other end 20b side of the swing arm 20. Then, the other end 20 b side of the swing arm 20 is inserted into the other end 10 b side of the fixed arm 10, the bolt 40 is passed through the bolt holes 14 and 24, and the other end 20 b of the swing arm 20 is connected to the fixed arm 10. The other end 10b is pivotally supported. Further, a pressing plate 26 that presses the floor surface 96 (see FIG. 4) with a compression spring 27 is provided on the swinging plate 21 on the one end 20 a side of the swinging arm 20. Specifically, the pressing plate 26 includes a disk-shaped pressing portion 26a and a bolt portion 26b erected on the pressing portion 26a. A pressing portion 26 a is provided at one end of the bolt portion 26 b so as to be movable in the axial direction, and the other end of the bolt portion 26 a is fixed to the swing plate 21 by a bolt hole 25 formed in the swing plate 21. . Further, a compression spring 27 is wound around the bolt portion 26b, so that the pressing plate 26 can press the floor surface 96. Here, the compression spring 27 is the “biasing means”. The “biasing means” may be an elastic body, and may be rubber, for example. Further, a bolt 41 is fixed to the swing plate 21 on the one end 20 a side of the swing arm 20 by welding, and a spring 42 is provided between the bolt 41 and the bolt 31. The spring 42 biases the one end 20 a of the swing arm 20 in a direction approaching the one end 10 a of the fixed arm 10.

  The swing member 30 is provided between one end 10 a of the fixed arm 10 and one end 20 a of the swing arm 20, and moves the one end 10 a of the fixed arm 10 and one end 20 a of the swing arm 20 close to or away from each other. . The swing member 30 includes a bolt 31, a bolt 32, a bolt 33, a first plate 35, and a second plate 36. Here, the bolt 31 is a “first axis”, the bolt 32 is a “second axis”, and the bolt 33 is a “third axis”.

  The first plate 35 and the second plate 36 include bottom plate portions 35a and 36a each having a rectangular plate shape, and side portions 35b and 36b provided perpendicular to two parallel sides of the bottom plate portions 35a and 36a. . The two side portions 35 b of the first plate 35 can be loosely inserted between the two side portions 36 b of the second plate 36. The side portions 35b and 36b protrude from the other two parallel sides of the bottom plate portions 35a and 36a, and bolt holes 35c, 35d, 36c, and 36d are formed on the protruding surfaces. Further, a notch 35e is provided on the side 35b on the bolt hole 35d side. In the first embodiment, the cutout portion 35e is 1.5 mm lower than the surface of the bottom plate portion 35a, but is preferably in the range of 0.5 mm to 2.5 mm.

  The lock lever 7 has a plate shape and is mostly accommodated in the fixed arm 10 and the movable arm 20. One end 7 a of the lock lever 7 is pivotally supported by the bolt 33, and the other end 7 b is connected to the rotating plate 2.

  Next, a procedure for assembling the swing member 30 to the lock mechanism 6 will be described. First, the bolt 33 is inserted into the bolt hole 36d, the one end 7a of the lock lever 7 and the bolt hole 35d in a direction in which the bottom plates 35a and 36a of the first plate 35 and the second plate 36 are brought into contact with each other. As a result, the first plate 35 and the second plate 36 are pivotally supported by the bolt 33 in a hinge shape, and the one end 7 a of the lock lever 7 is pivotally supported by the bolt 33. Further, the first plate 35 is pivotally supported by the bolt 31 by inserting the bolt 31 into the bolt hole 13 of the fixed arm 10 and the bolt hole 35 c of the first plate 35. Further, the second plate 36 is pivotally supported by the bolt 32 by inserting the bolt 32 into the bolt hole 23 of the swing arm 20 and the bolt hole 36 c of the second plate 36. Thereby, the one end 10a of the fixed arm 10 and the one end 20a of the swing arm 20 can be brought close to each other by pushing the lock lever 7 toward the one end 10a side of the fixed arm 10. Further, by pulling the lock lever 7 toward the other end 10 b of the fixed arm 10, the one end 10 a of the fixed arm 10 and the one end 20 a of the swing arm 20 can be separated.

  In the caster fixture having the above-described configuration, from the state in which the four casters 92 can move on the floor 96, as shown in FIG. 3, the push lever 4a of the fixed lever 4 is stepped on with a foot in the direction of the arrow. When pushed down, the operation lever 4b is pushed in the direction of the arrow. As a result, the rotating plate 2 rotates clockwise (in the direction of the arrow) around the axis of the rotating shaft 1. When the rotating plate 2 rotates to the right, the other end 7b of each lock lever 7 pivotally supported at the four corners of the rotating plate 2 is pulled in the direction of the arrow, and one end 20a of the swing arm 20 is one end 10a of the fixed arm 10. It will be in a state separated from. At this time, one end 20a of the swing arm 20 is urged by the spring 42 in a direction approaching the one end 10a of the fixed arm 10 (see FIG. 2). Since the side 35b has the notch 35e, as shown in FIG. 4, the bolts 31 and 32 are separated from each other, and the bolt 33 is in the right direction of FIG. The first plate 35 and the second plate 36 are stabilized in an inverted “<” shape. Thereby, the pressing part 26a of the pressing plate 26 presses the floor 96, and the movement of the medical cart 90 can be prohibited. At this time, the four casters 92 are in contact with the floor surface 96 and do not float up. That is, the spring constant of the compression spring 27 provided in the bolt portion 26b is set so that the pressing plate 26 receives about one half of the total weight when the medical device is mounted on the medical cart 90. . As a result, the four casters 92 and the four pressing plates 26 support the weight of the medical cart 90. For this reason, the total area where the caster 92 and the pressing plate 26 abut against the floor surface 96 is increased, and the stability of the medical cart 90 is improved. Further, since the four pressing plates 26 do not lift the four casters 92, the caster fixture can be reduced in size. Note that the weight received by the pressing plate 26 is desirably 30% to 70% of the total weight when the medical device is mounted on the medical cart 90.

  Further, when the movement of the medical cart 90 is prohibited, as shown in FIG. 5, when the push lever 5a of the release lever 5 is stepped on and pushed down in the direction of the arrow, the operation lever 5b is pushed in the direction of the arrow. It is. As a result, the rotation plate 2 rotates counterclockwise (in the direction of the arrow) around the axis of the rotation shaft 1. When the rotating plate 2 rotates counterclockwise, the other end 7b of each lock lever 7 pivotally supported at the four corners of the rotating plate 2 is pushed in the direction of the arrow, and one end 20a of the swing arm 20 is one end 10a of the fixed arm 10. It will be in the state close to. At this time, one end 20a of the swing arm 20 is urged by the spring 42 in a direction approaching the one end 10a of the fixed arm 10 (see FIG. 2). Therefore, as shown in FIG. 6, the bolts 31 and 32 approach each other, and the bolt 33 is in the left direction with respect to the bolts 31 and 32, that is, the first plate 35 and the second plate 36 are It stabilizes in the state of "". Thereby, the pressing portion 26 a of the pressing plate 26 is separated from the floor surface 96, and the medical cart 90 can be moved by the four casters 92.

  In the caster fixture according to the first embodiment, the four lock mechanisms 6 can be actuated by operating the rotation lever 3 (fixing lever 4 and release lever 5) once, and the movement and fixing are frequently performed. Even in the case of the medical cart 90 that repeats, the operation is simple. Moreover, since this caster fixture has the four lock mechanisms 6, it can receive the load of the medical trolley 90 in a wide area, and the medical trolley 90 tends to be more stable. Therefore, according to the caster fixture according to the first embodiment, the operation is simple and the movement of the base can be prohibited more reliably.

  Further, in this caster fixing tool, the movement of the medical cart 90 can be prohibited by pushing down the fixing lever 4, and the medical cart 90 can be moved by pushing down the release lever 5. 4 and the release lever 5 can be operated with feet, and the operation is simple even in the case of the medical cart 90 that frequently repeats moving and fixing.

  Further, in this caster fixture, the lock mechanism 6 is provided with a swing member 30, and the swing member 30 allows the one end 10 a of the fixed arm 10 and the one end 20 a of the swing arm 20 to approach or separate from each other. it can. Further, since the pressing plate 26 that presses the floor surface 96 by the compression spring 27 is provided at one end 20a of the swing arm 20, the movement of the medical cart 90 can be prohibited or enabled with a simple structure.

  Further, in this caster fixture, the swing member 30 is pivotally supported by the bolt 33 in a hinge shape at the other end of the first plate 35 and the other end of the second plate 36. One end of the first plate 35 and one end of the second plate 36 are pivotally supported by the bolt 31 and the bolt 32 on one end 10 a of the fixed arm 10 and one end 20 a of the swing arm 20. Since one end 7 a of the lock lever 7 is pivotally supported by the bolt 33, the end 20 a of the swing arm 20 can be easily brought close to the one end 10 a of the fixed arm 10 by pushing or pulling the lock lever 7. Or they can be separated.

  Next, the caster fixture of Embodiment 2 is demonstrated below based on drawing. FIG. 7 is a perspective view of a medical cart 90 in which the caster fixture of Embodiment 2 is disposed on the bottom surface 91 as viewed from the bottom surface direction. Therefore, the upper front direction in FIG. 7 is the floor surface. Among the mechanical configurations of the caster fixture, the same components as those of the caster fixture of Embodiment 1 shown in FIGS. 1 to 6 are denoted by the same reference numerals, and the description thereof is omitted.

  In this caster fixture, one end of the rotating lever 8 is bent into an L shape, and the one end is fixed to the rotating plate 2 by welding. Moreover, the other end part of the rotation lever 8 protrudes the outer side of the medical trolley | bogie 90, and is easy to operate by hand.

  In this caster fixture, as shown in FIG. 7, when the rotation lever 8 is pulled in one direction A parallel to the bottom surface 91, the rotation plate 2 rotates clockwise around the axis of the rotation shaft 1. When the rotating plate 2 rotates to the right, the other end 7b of each lock lever 7 pivotally supported at the four corners of the rotating plate 2 is pulled, and the one end 20a of the swing arm 20 is separated from the one end 10a of the fixed arm 10. become. At this time, one end 20a of the swing arm 20 is urged by the spring 42 in a direction approaching the one end 10a of the fixed arm 10 (see FIG. 2). Since the side 35b has the notch 35e, as shown in FIG. 4, the bolts 31 and 32 are separated from each other, and the bolt 33 is in the right direction of FIG. The first plate 35 and the second plate 36 are stabilized in an inverted “<” shape. Thereby, the pressing part 26a of the pressing plate 26 presses the floor 96, and the movement of the medical cart 90 can be prohibited.

  Further, from the state where the movement of the medical cart 90 is prohibited, as shown in FIG. 7, the rotation lever 8 is pulled in the other direction B parallel to the bottom surface 91 to rotate around the axis of the rotation shaft 1. The moving plate 2 rotates counterclockwise. When the rotating plate 2 rotates counterclockwise, the other end 7b of each lock lever 7 pivotally supported at the four corners of the rotating plate 2 is pushed, and one end 20a of the swing arm 20 is close to one end 10a of the fixed arm 10. become. At this time, one end 20a of the swing arm 20 is urged by the spring 42 in a direction approaching the one end 10a of the fixed arm 10 (see FIG. 2). Therefore, as shown in FIG. 6, the bolts 31 and 32 approach each other, and the bolt 33 is in the left direction with respect to the bolts 31 and 32, that is, the first plate 35 and the second plate 36 are It stabilizes in the state of "". Thereby, the pressing portion 26 a of the pressing plate 26 is separated from the floor surface 96, and the medical cart 90 can be moved by the four casters 92.

  In the caster fixture according to the second embodiment, since the movement of the medical cart 90 can be prohibited or enabled by operating one rotation lever 8 to the left and right, the caster fixture can be reduced in size. Other actions and effects are the same as those of the first embodiment.

  In the caster fixtures of the first and second embodiments, four lock mechanisms 6 are used. Although the number of the lock mechanisms 6 is not limited to four, if the number is too small, the base is not stable, and if the number is too large, the caster fixture becomes large. The number of the lock mechanisms 6 is desirably 3 to 5. In the caster fixtures of the first and second embodiments, the rotating plate 2 is a square plate shape, but it is desirable to change the shape depending on the number of the lock mechanisms 6. For example, when the number of lock mechanisms 6 is three, a triangle is preferable, and when the number of lock mechanisms 6 is five, a pentagon is preferable.

  Moreover, in the caster fixing tool of Embodiment 1, 2, the four lock mechanisms 6 are directly arrange | positioned in the bottom face 91. FIG. On the other hand, the lock mechanism 6 may be previously arranged on the plate to be unitized, and the unitized caster fixture may be attached to the bottom surface 91.

  As mentioned above, although the caster fixing tool of this invention was demonstrated according to Embodiment 1, 2, this invention is not restrict | limited to these, As long as it is not contrary to the technical idea of this invention, it changes suitably and is applied. Needless to say, it can be done.

  DESCRIPTION OF SYMBOLS 1 ... Rotating shaft, 2 ... Rotating plate, 3, 8 ... Rotating lever (4 ... Fixed lever, 5 ... Release lever), 6 ... Lock mechanism, 7 ... Lock lever, 10 ... Fixed arm, 20 ... Swing Arm, 26 ... Pressing plate, 27 ... Biasing means (compression spring), 30 ... Oscillating member, 31 ... First shaft (bolt), 32 ... Second shaft (bolt), 33 ... Third shaft (bolt), 35 ... 1st plate, 36 ... 2nd plate, 90 ... Base (medical cart), 91 ... Bottom, 92 ... Caster, 96 ... Floor

Claims (6)

In the caster fixture that can prohibit the movement of the base having a plurality of casters on the bottom surface,
A rotating plate provided so as to be rotatable around the axis of the rotating shaft provided upright on the bottom surface;
A pivot lever protruding from the pivot plate to the outside of the base and capable of pivoting the pivot plate;
A plurality of locking mechanisms that prohibit movement of the base by pressing the floor surface, and that allow movement of the base by releasing the pressure;
A caster fixture, comprising: a lock lever having one end connected to each lock mechanism and the other end pivotally supported on an outer peripheral portion of the rotating plate. In claim 1,
The caster fixture according to claim 1, wherein the rotating lever includes a fixing lever that prohibits the movement of the base by pressing down, and a release lever that enables the movement of the base by pressing down. In claim 1,
The rotating lever prohibits movement of the base by pulling in one direction parallel to the bottom surface, and enables movement of the base by pulling in another direction parallel to the bottom surface. Caster fixture to be used. In claims 1 to 3,
The locking mechanism is
A fixed arm extending radially from the rotating plate and fixed to the bottom surface;
A swing arm provided to face the fixed arm,
One end of the swing arm on the outer peripheral side of the bottom surface is provided with a pressing plate that presses the floor surface by biasing means, and the other end of the swing arm on the rotating plate side is pivoted to the other end of the fixed arm. Supported,
Between one end of the fixed arm and one end of the swing arm, a swing member is provided to bring the one end of the fixed arm and one end of the swing arm close to or away from each other,
A caster fixture, wherein one end of the lock lever is connected to the swing member. The swing member according to claim 4,
A first axis provided at one end of the fixed arm and perpendicular to the longitudinal direction and parallel to the bottom surface;
A first plate whose one end is pivotally supported on the first shaft;
A second shaft provided at one end of the swing arm and perpendicular to the longitudinal direction and parallel to the bottom surface;
A second plate having one end pivotally supported on the second shaft;
A third axis provided in parallel to the first axis and the second axis, on which the other end of the first plate and the other end of the second plate are pivotally supported;
One end of the lock lever is pivotally supported on the third shaft,
By pushing the lock lever toward one end of the fixed arm, one end of the fixed arm and one end of the swing arm come close to each other,
A caster fixture, wherein one end of the fixed arm and one end of the swing arm are separated from each other by pulling the lock lever toward the other end of the fixed arm.   6. The base according to claim 1, wherein the base is an article installation stand, a medical device, a storage shelf, a TV stand, a cart, a carriage, a desk, a chair, a cart, a wagon, a cart, a baby carriage, a stroller, a bookcase, a locker, and a display. A caster fixture characterized by being a shelf, a bed, a whiteboard, a piano, an organ, a vertical, a trash can, a clothesline support, an advertising board, or an advertising tower.

Images