JP6570872B2 - Brake operation transmission mechanism and mobile table provided with the same - Google Patents

Description

  The present invention relates to a brake operation transmission mechanism and a movable table, and more particularly to a brake operation transmission mechanism that transmits an operation of a brake mechanism used for a bedside table, an overbed table, and the like, and a movable table including the same.

  Conventionally, a bedside table that is moved from the bedside in the width direction of the bed and placed at a predetermined position, or an overbed table that is moved from the bed foot side in the longitudinal direction of the bed and placed at a predetermined position. Such a movable table is known to include a lock mechanism that prevents a caster from moving when a user uses the table, a brake mechanism that applies braking so that the table does not move, and the like.

  As a conventional technique, for example, in a bedside table having a caster with a wheel lock mechanism, and the table is raised and lowered, a handle is provided on the table, and the wheel lock mechanism of all casters is locked by operating the handle. A device for unlocking is disclosed (see Patent Document 1).

JP2012-183202A

  However, in the technique of Patent Document 1, since a branch wire is used as an operation wire used for a wheel lock mechanism, there is a problem that adjustment and maintenance of the operation wire become complicated.

  In addition, since an operation wire is used as a means for operating the wheel lock mechanism, handling of the operation wire becomes complicated when assembling the table. Therefore, in consideration of workability at the site, the table should be packed in an assembled state. There is a problem that the transportation form becomes large.

  The present invention has been made in view of the above-mentioned conventional problems, and in a mobile table, it is intended to improve adjustment and maintenance when operating a brake mechanism, to facilitate disassembly and assembly work, and to provide a transportation form. It is an object of the present invention to provide a brake operation transmission mechanism that can be made compact and a movable table including the same.

  A brake operation transmission mechanism according to the present invention for solving the above-described problems and a mobile table including the same are as follows.

  The present invention includes a table plate, a support column that supports the table plate, and a leg that supports the support, and a brake mechanism that brakes a movable table having a moving caster on the leg. A brake operation transmission mechanism for operating the brake mechanism, wherein the brake mechanism is provided in the leg portion, and the brake operation transmission mechanism is configured as an operation unit that performs a brake release operation of the brake mechanism, and transmits the operation of the operation unit. A transmission member configured to transmit the operation of the operation unit to the leg side through the support column, and the operation of the first transmission member as the brake. A second transmission member that transmits to the mechanism, and a connecting member that connects the first transmission member and the second transmission member, and a rotatable shaft body is used as a configuration of the first transmission member. When Is shall.

  In the present invention, the first transmission member is provided on the support column, the second transmission member is provided on the leg unit, and the first support member and the leg unit are connected to each other. When the transmission member and the second transmission member are coupled and the support column and the leg are separated, the coupled state of the first transmission member and the second transmission member is released. It is preferable to configure.

  According to the present invention, the connecting member is configured such that the shaft body of the first transmission member is connected to be rotatable according to the rotation operation of the shaft body, and the second transmission is performed according to the rotation operation of the connection member. The brake mechanism is preferably operated by a member.

  In the present invention, the brake mechanism is configured to stop the movable table without performing a brake release operation, and the brake of the brake mechanism is released by operating the operation unit. It is preferable to do.

  In the present invention, it is preferable that the brake mechanism is provided at a plurality of locations of the leg portion.

  In the present invention, the shaft body is preferably configured to be extendable and contractible.

  Moreover, this invention has a 1st shaft member and a 2nd shaft member as a structure of the said shaft body, A coaxial line direction in the state which the said 1st shaft member and the said 2nd shaft member overlapped on the coaxial line It is preferable that the first shaft member and the second shaft member rotate in synchronization with each other.

  In addition, the present invention provides a movable table including a table plate, a column portion that supports the table plate, a leg portion that supports the column portion, a moving caster provided on the leg portion, and a brake mechanism. A brake operation transmission mechanism for releasing the brake of the brake mechanism, and as a configuration of the brake operation transmission mechanism, an operation unit for performing a brake release operation of the brake mechanism, and a transmission member for transmitting an operation of the operation unit; The transmission member includes a first transmission member that transmits the operation of the operation unit to the leg side through the support column, and transmits the operation of the first transmission member to the brake mechanism. A second transmission member; a connecting member that connects the first transmission member and the second transmission member; and a rotatable shaft body as a configuration of the first transmission member. It is an butterfly.

  In the present invention, it is preferable that the support column is configured to be extendable.

  According to the brake operation transmission mechanism of the present invention, the table includes a table plate, a supporting column portion that supports the table plate, and a leg portion that supports the supporting column portion, and the leg portion includes a moving caster. A brake operation transmission mechanism for operating a brake mechanism for braking the expression table, wherein the brake mechanism is provided in the leg portion, and as a configuration of the brake operation transmission mechanism, an operation unit that performs a brake release operation of the brake mechanism; A transmission member that transmits the operation of the operation unit, and the transmission member includes a first transmission member that transmits the operation of the operation unit to the leg side via the support column, and the first transmission member. A second transmission member that transmits the operation of the transmission member to the brake mechanism; and a connecting member that connects the first transmission member and the second transmission member. The first transmission member can be rotated. Brake operation transmission mechanism that enables adjustment and maintenance when operating the brake mechanism, and facilitates disassembly and assembly work of the support column and the leg unit to make the transportation form compact by using a simple shaft body Can be realized.

  Further, according to the movable table of the present invention, the table plate, the support column that supports the table plate, the leg that supports the support, the caster for movement provided on the leg, and the brake mechanism A brake operation transmission mechanism that releases the brake of the brake mechanism, an operation unit that performs a brake release operation of the brake mechanism as a configuration of the brake operation transmission mechanism, and an operation of the operation unit A first transmission member that transmits the operation of the operation unit to the leg side through the support column, and the operation of the first transmission member. A second transmission member that transmits to the brake mechanism; and a connecting member that connects the first transmission member and the second transmission member, and is rotatable as a configuration of the first transmission member By using the body, it is possible to realize a mobile table capable of making adjustments when operating the brake mechanism and improving maintainability, facilitating disassembly and assembly work of the support column and the leg, and making the transportation form compact. .

It is explanatory drawing which shows the whole structure of the mobile table which concerns on embodiment of this invention. It is explanatory drawing by the front view which shows the whole structure of the said movable table. It is explanatory drawing by the side view which shows the whole structure of the said mobile table. It is explanatory drawing by the side view which shows the state which raised the said movable table. It is explanatory drawing which shows the structure of the leg part of the said movement table. It is explanatory drawing which shows the positional relationship of the brake mechanism arrange | positioned at the said leg part. It is explanatory drawing which shows the structure of the brake mechanism of the leg part by the side of the support | pillar of the said movement table. It is explanatory drawing which shows the structure of the brake mechanism of the other leg part of the said movement table. It is explanatory drawing which shows the normal state of the said brake mechanism. It is explanatory drawing which shows the state at the time of the brake release of the said brake mechanism. It is a side view which shows the structure of the brake operation transmission mechanism which comprises the said mobile table. It is explanatory drawing by the planar view which shows the structure of the said brake operation transmission mechanism. It is a side view which shows the state which brake-release-operated by the operation lever which comprises the said brake operation transmission mechanism. It is explanatory drawing which shows the state which locked the operation lever in the brake release state with the lock lever which comprises the said brake operation transmission mechanism. It is explanatory drawing which shows the whole structure of the rotating shaft which comprises the said brake operation transmission mechanism. It is explanatory drawing which shows the structure of each part element which comprises the said rotating shaft. It is explanatory drawing which shows the structure of the connection member which comprises the said brake operation transmission mechanism. It is explanatory drawing which shows the engaging part to which the rotating shaft of the said connection member is connected. It is explanatory drawing which shows the structure of the attaching part to which the operation lever of the said connection part is connected. It is explanatory drawing which shows the structure of the operation lever and lock lever which comprise the said brake operation transmission mechanism. It is explanatory drawing by the front view which shows the state which does not operate the said operation lever in the said brake operation transmission mechanism. It is explanatory drawing by the front view which shows the state which locked the state which operated the said operation lever in the said brake operation transmission mechanism with the lock lever. It is explanatory drawing which shows the modification 1 of the rotating shaft which comprises the movable table which concerns on embodiment of this invention. It is explanatory drawing which shows the structure of each part element which comprises the said rotating shaft. It is explanatory drawing which shows the structure of the guide member which guides the inner shaft of the said rotating shaft. It is explanatory drawing which shows the whole structure of the modification 2 of the mobile table which concerns on embodiment of this invention.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for implementing a mobile table of the present invention will be described in detail with reference to the drawings.
FIG. 1 is an example of an embodiment for carrying out the present invention, and is an explanatory view showing the overall configuration of the mobile table according to the embodiment of the present invention. FIG. 2 is a front view showing the overall configuration of the mobile table. FIG. 3 is a side view showing the overall configuration of the mobile table, FIG. 4 is a side view showing a state in which the mobile table is raised, and FIG. 5 is a leg portion of the mobile table. FIG. 6 is an explanatory diagram showing the positional relationship of the brake mechanism disposed on the leg, and FIG. 7 is an explanatory diagram showing the configuration of the brake mechanism of the leg on the support column side of the moving table. 8 is an explanatory view showing the structure of the brake mechanism of the other leg of the moving table, FIG. 9 is an explanatory view showing the normal state of the brake mechanism, and FIG. 10 is an explanatory view showing the state of the brake mechanism when the brake is released. It is.

  The mobile table 1 according to the present embodiment is a bedside table, and as shown in FIGS. 1 and 2, supports a table plate 10, a support column 20 that supports the table plate 10, and a support column 20. In a mobile table having a leg portion 30 and a caster 43 for movement in the leg portion 30, a brake mechanism 40 that brakes the mobile table 1 and a brake operation transmission mechanism that releases the brake mechanism 40. 50.

  First, the overall configuration of the mobile table 1 of the present embodiment will be described with reference to the drawings.

  As shown in FIGS. 1 and 2, the table plate 10 is formed in an elongated rectangular shape so that it can be placed across the bed apparatus over the width direction of the bed apparatus (not shown).

  As shown in FIG. 2, a table base 11 that supports the table plate 10 is configured on the lower side of the table plate 10. The table base 11 is formed on the lower side of the table plate 10 from the end portion in the longitudinal direction to the substantially central portion.

  A support column 20 is disposed at the longitudinal end of the table base 11, and the support 20 supports the table base 11 and the table plate 10 only on one side. A leg 30 is provided at the base of the support 20.

  The table base 11 is formed in a box shape having an upper opening so as to form a space between the table plate 10 and the table base 11.

  An operation lever (operation unit) 51 constituting a brake operation transmission mechanism 50 is provided at the end of the table base 11 on the column 20 side. By operating the operation lever 51, the brake mechanism 40 provided in the leg 30 is released from the brake.

  In the present embodiment, as shown in FIG. 2, the brake operation transmission mechanism 50 is configured to release the brakes of the brake mechanisms 40 arranged at two locations of the leg portion 30. (Transmission member) 52 and two operation wires (second transmission members) 53 and 54 interlocking with the operation of the rotary shaft 52. The rotating shaft 52 and the two operation wires 53 and 54 are connected via a connecting member 55.

  The brake mechanism 40 includes a first brake mechanism 41 provided on the first leg frame 301 constituting the leg portion 30 and a second brake mechanism 42 provided on the second leg frame 302.

  The operation wire 53 is connected to the first brake mechanism 41, and the operation wire 54 is connected to the second brake mechanism 42.

The support | pillar part 20 is comprised so that expansion-contraction is possible, as shown in FIG. 3, FIG.
The strut portion 20 includes a first strut member 201 and a second strut member 202, and extends and contracts by moving the second strut member 202 along the first strut member 201 together with the table plate 10 in the vertical direction in the figure. It is configured.

  The first strut member 201 is provided on the leg portion 30 side, and the second strut member 202 is provided on the table base portion 11 side, and the user pushes the table plate 10 up or down by a driving mechanism (not shown). The height of the table plate 10 can be adjusted. The table base 11 is provided with an operation lever 60 for vertically moving the table plate 10 by extending and contracting the support column 20 by the drive mechanism.

A rotation shaft 52 is disposed inside the column portion 20.
As shown in FIGS. 3 and 4, the rotary shaft 52 includes an outer shaft 521 and an inner shaft 522, and moves the inner shaft 522 in the vertical direction in the drawing along the outer shaft 521 within a range in which the support column 20 extends and contracts. It is configured to expand and contract.

  Specifically, the outer shaft 521 is provided on the first support member 201 side, the inner shaft 522 is provided on the second support member 202 side, and the rotary shaft 52 extends and contracts following the operation of the support column 20 extending and contracting. Is configured to do.

  As shown in FIGS. 1 and 2, the leg portion 30 includes a first leg frame 301 including a first brake mechanism 41 and a moving caster 43 on the column portion 20 side, a second brake mechanism 42, and a moving portion. The second leg frame 302 including the casters 43 and the connection frame 303 connecting the first leg frame 301 and the second leg frame 302 are configured in an H shape.

  As shown in FIGS. 1 and 5, the first leg frame 301 and the second leg frame 302 are formed long along the width direction of the table plate 10, and are moved at both ends via attachment brackets 431. The caster 43 is attached.

  A first brake mechanism 41 is provided between the casters 43 and 43 at both ends of the first leg frame 301, and a second brake mechanism is provided between the casters 43 and 43 at both ends of the second leg frame 302. 42 is provided.

  Here, the structure of the brake mechanism 40 of this embodiment is demonstrated with reference to drawings.

  In this embodiment, as shown in FIGS. 5 and 6, the brake mechanism 40 includes a first brake mechanism 41 provided on the first leg frame 301 and a second brake provided on the second leg frame 302. And a mechanism 42.

  The first brake mechanism 41 and the second brake mechanism 42 are disposed inside casters 43 and 43 disposed at both ends in the first leg frame 301 and the second leg frame 302, respectively.

  Here, the first brake mechanism 41 and the second brake mechanism 42 are partially different in arrangement of components, but have the same configuration, so the first brake mechanism 41 will be described as an example with reference to the drawings.

  As shown in FIG. 7, the first brake mechanism 41 includes an attachment frame 410, brake parts 420A and 420B, a wire operation lever 430, and wire guide parts 440A and 440B.

  The mounting frame 410 is configured as a brake unit by integrally mounting components constituting the first brake mechanism 41.

  The attachment frame 410 is provided with a brake part holder 411 to which the brake parts 420A and 420B are attached.

  The brake parts 420A and 420B each have a brake pad (brake member) 421, a brake pad holding part (brake member holding part) 422 for holding the brake pad 421, and a support shaft that rotatably supports the brake pad holding part 422. 423 and a torsion coil spring (biasing member) 424.

  As shown in FIGS. 7 and 9, the brake part holder 411 includes a rotation stopper 425 at a position close to the brake pad holding part 422. The rotation stopper 425 is in contact with a part of the brake pad holding portion 422 and regulates the turning operation of the brake pad holding portion 422 so that the brake pad 421 does not turn beyond a predetermined position from the state where the brake is applied. ing.

  Specifically, as shown in FIG. 9, the rotation stopper 425 has a brake pad holding portion on the opposite side to the brake pad 421 when the brake pad 421 comes into contact with the floor surface and stops the movable table 1. A part of 422 is provided at a position where it abuts or approaches.

  By providing the rotation stopper 425 in this way, the brake pad 421 can be held in contact with the brake pad holding portion 422 when the brake is applied. As a result, the brake pad 421 can stably maintain the brake applied state without the brake pad 421 rotating and getting over.

  The torsion coil spring 424 functions as a biasing member that constantly biases the brake pad holding portion 422 in a direction in which the brake pad 421 contacts the floor portion.

  As shown in FIGS. 7 and 9, the brake parts 420A and 420B are arranged in the table width direction with respect to the mounting position of the support shaft 423 for rotating the brake part with the brake pad 421 in contact with the floor surface. It is arranged outside.

  With such a configuration, the brake pad 421 of the brake parts 420A and 420B brakes against the movement of the mobile table 1 in the table width direction.

  Specifically, as shown in FIG. 9, for example, when the mobile table 1 tries to move from right to left in the figure, the brake pad 421 of the brake unit 420 </ b> B is disposed on the upstream side in the movement direction with respect to the support shaft 423. It works in the direction to escape from the floor. On the other hand, the brake pad 421 of the brake unit 420A is arranged on the downstream side in the movement direction with respect to the support shaft 423, and thus acts in the direction of biting into the floor surface.

  In addition, when the mobile table 1 tries to move from the left to the right in the figure, the brake pad 421 of the brake part 420A is arranged on the upstream side in the movement direction from the support shaft 423. Works. On the other hand, the brake pad 421 of the brake part 420B is arranged on the downstream side in the movement direction with respect to the support shaft 423, and thus acts in the direction of biting into the floor surface.

  With this configuration, braking is applied by the brake pad 421 on the downstream side in the moving direction of the mobile table 1, so that the mobile table 1 can be effectively brought into a stopped state.

  By such an action, the brake pad 421 of the brake portions 420A and 420B can brake against the movement of the movable table 1 in the table width direction.

  As shown in FIG. 7, the wire operation lever 430 is formed with an operation portion 430 a to which the operation wire 53 is attached. In addition, brake operation wires 531A and 531B connected to the brake portions 420A and 420B are attached to the wire operation lever 430 via attachment fittings 532, respectively.

  With such a configuration, the operation of the operation wire 53 is transmitted to the brake operation wires 531A and 531B simultaneously by the wire operation lever 430.

  The brake operation wire 531A is connected to the brake pad holding part 422 of the brake part 420A, and the brake operation wire 531B is connected to the brake pad holding part 422 of the brake part 420B.

  The wire guide portions 440A and 440B are provided adjacent to the brake portion holder 411, respectively, and include a wire guide roller 441 to guide the movement of the brake operation wires 531A and 531B by the wire guide roller 441 so that the operation is smooth. To do.

  The operation of the brake mechanism 40 will be described by taking the first brake mechanism 41 as an example. In a normal state in which the brake release operation is not performed, as shown in FIG. 9, a brake pad 421 is provided by a torsion coil spring 424 (see FIG. 7). Is urged so as to protrude toward the floor surface, and is brought into a brake state by a frictional force generated between the brake pad 421 and the floor surface. When the brake is released, as shown in FIG. 10, the brake pad 421 is drawn into the first leg frame 301 by operating the operation wire 53, and the brake pad 421 and the floor surface are separated from each other. ing.

Next, a characteristic configuration of the brake operation transmission mechanism 50 of the present embodiment will be described with reference to the drawings.
FIG. 11 is a side view showing the configuration of the brake operation transmission mechanism constituting the mobile table of this embodiment, FIG. 12 is an explanatory view in plan view showing the configuration of the brake operation transmission mechanism, and FIG. 13 is the brake operation transmission mechanism. FIG. 14 is an explanatory view showing a state where the operation lever is locked in a brake released state by a lock lever constituting the brake operation transmission mechanism, and FIG. 15 is a diagram showing the brake. FIG. 16 is an explanatory diagram showing the configuration of each component constituting the rotary shaft, and FIG. 17 is a diagram showing the configuration of a connecting member constituting the brake operation transmission mechanism. FIG. 18 is an explanatory view showing an engaging portion to which the rotating shaft of the connecting member is connected, and FIG. 19 is an attachment to which the operating lever of the connecting portion is connected. FIG. 20 is an explanatory view showing the configuration of the operation lever and the lock lever constituting the brake operation transmission mechanism, and FIG. 21 is a front view showing a state where the operation lever is not operated in the brake operation transmission mechanism. FIG. 22 is a front view showing a state in which the operation lever is operated by the lock lever in the brake operation transmission mechanism.

  As shown in FIGS. 1, 2, 11, and 13, the brake operation transmission mechanism 50 includes an operation lever 51, a rotating shaft 52, operation wires 53 and 54, and a lock lever 57.

  As shown in FIGS. 11 and 12, the operation lever 51 is integrally provided with an operation shaft 511 and a rotary shaft operation lever 512, near the end of the table plate 10 of the table base 11 at the lower part of the table plate 10. Has been placed.

  The operation shaft 511 is provided in the width direction of the table base 11 and is rotatably attached to the table base 11. Both end portions of the operation shaft 511 are provided so as to protrude from the side portion of the table base 11, and the operation lever 51 is integrally provided at the protruding end portion.

  The operation shaft 511 is disposed above the rotation shaft 52 with the axis line direction being horizontal. A rotating shaft operating lever 512 is integrally provided at a position close to the collar 523 provided at one end of the rotating shaft 52. The rotation shaft operation lever 512 is configured to rotate integrally with the rotation of the operation shaft 511.

  A stopper 514 for positioning the rotary shaft operating lever 512 at a predetermined position is provided adjacent to the rotary shaft operating lever 512.

  The rotating shaft operating lever 512 includes a rotating shaft engaging portion 512a, a lock lever abutting portion 512b, and a stopper abutting portion 512c. The rotating shaft engaging portion 512 a is engaged with a driving pin 524 provided on the rotating shaft 52 and rotates the rotating shaft 52. The lock lever abutting portion 512b abuts on the lock pin 58 that holds the rotating shaft operating lever 512 and holds the rotating shaft operating lever 512 at the brake release position. The stopper abutting portion 512c is in contact with the stopper 514 and arranges the rotary shaft operating lever 512 at a predetermined position.

  As shown in FIGS. 15 and 16, the rotary shaft 52 includes an outer shaft 521 and an inner shaft 522, and allows the range in which the support column 20 extends and contracts to move the inner shaft 522 along the outer shaft 521 in the axial direction ( It is configured to expand and contract by moving in the vertical direction in the figure.

  The outer shaft 521 is a hollow shaft having a rectangular cross section, and the inner shaft 522 is accommodated in the hollow portion. A support shaft 521a that supports the hollow shaft protrudes from one end. In the vicinity of the tip of the support shaft 521a, an engagement pin 521b that engages with the connecting member 55 is provided so as to penetrate the support shaft 521a and protrude outward from the outer periphery.

  The inner shaft 522 is configured such that one end portion 522a protrudes from the other end portion of the outer shaft 521 in a state in which the rotating shaft 52 is contracted, that is, in a state where the inner shaft 522 is accommodated in the outer shaft 521.

  Further, as shown in FIGS. 12 and 14, the inner shaft 522 is rotatably mounted in the table base 11 with one end 522 a protruding therefrom. A collar (outer peripheral member) 523 is attached to the one end 522a.

A driving pin 524 is provided on the collar 523 so as to protrude from the outer peripheral portion.
The drive pin 524 is disposed in the vicinity of the rotation shaft operation lever 512 provided integrally with the operation lever 51 and is engaged so as to follow the operation of the rotation shaft operation lever 512. As a result, the drive pin 524 transmits the operation of the operation lever 51 to the rotation shaft 52.

  Further, as shown in FIG. 16, the other end portion 522b of the inner shaft 522 guides the movement of the inner shaft 522 in the vertical direction (axial direction) along the inner wall of the outer shaft 521, and the inner shaft 522 is independent. A guide member 522c that restricts the rotation of the inner shaft 522 and an engaging member 522d that is disposed at a substantially central position while preventing the inner shaft 522 from shifting laterally (perpendicular to the axial direction) in the outer shaft 521. Is provided.

  The guide member 522c has a circular shape, and is rotatably provided when the inner shaft 522 is moved in the vertical direction when the inner shaft 522 is in contact with the inner wall of the outer shaft 521, and the outer shaft 521 is rotated when the inner shaft 522 rotates. It is provided so as to rotate together.

  As shown in FIGS. 12 and 14, the rotary shaft 52 configured in this manner is provided in the support column 20 with one end 522 a of the inner shaft 522 disposed on the table base 11 side and the axial direction as the vertical direction. 17 and 18, the support shaft 521a at the other end of the outer shaft 521 is configured to be connectable to a connecting member 55 provided on the leg 30 side.

  As shown in FIG. 18, the connecting member 55 has a circular shape, is rotatably provided on the connecting frame 303 of the leg portion 30, and has an engaging pin at a portion corresponding to the engaging pin 521 b of the rotating shaft 52 on the upper surface. An engaging portion 551 is formed that is recessed in the same shape as 521b.

  As shown in FIG. 19, attachment portions 553 and 554 to which the operation wires 53 and 54 are attached are formed in the vicinity of the outer peripheral portion of the connecting member 55.

  The connecting member 55 configured as described above is removably connected to the engaging portion 551 with the engaging pin 521b of the rotating shaft 52, and rotates about the engaging portion 551 by rotating the rotating shaft 52. Is configured to do. And it is comprised so that the operation wires 53 and 54 may operate | move with respect to the 1st brake mechanism 41 and the 2nd brake mechanism 42, respectively, when the connection member 55 rotates.

The operation wire 54 includes an outer wire and an inner wire that operates.
The operation wire 53 uses only a wire corresponding to the inner wire.
The operation wires 53 and 54 are connected to a rotating shaft 52 that is interlocked with the operation of the operation lever 51 through a connecting member 55, and are connected to the first brake mechanism 41 and the second brake mechanism 42 on the leg 30 side, respectively. ing. Thus, by operating the operation lever 51, the brake release operation of the first brake mechanism 41 and the second brake mechanism 42 can be performed via the rotating shaft 52, the connecting member 55, and the operation wires 53 and 54.

  As shown in FIG. 2, the operation wires 53 and 54 are laid in the connection frame 303 of the leg 30, and one end of each is attached to the connection member 55, and the other end of the operation wire 53 is the first leg. The operation wire 54 is attached to the first brake mechanism 41 of the frame 301, and the other end of the operation wire 54 is attached to the second brake mechanism 42 of the second leg frame 302.

  Thus, by operating the connecting member 55, the first brake mechanism 41 provided on the first leg frame 301 of the leg 30 to which the other end of each of the operation wires 53 and 54 is connected, and the second leg The second brake mechanism 42 provided on the part frame 302 can be operated simultaneously.

  As shown in FIGS. 11 and 12, the operation lever 51 is formed in a substantially L-shape projecting outward while being widened in the width direction with one end portion serving as an operation portion 51a, and the other end portion is connected to the operation shaft 511. Provided integrally, the operating shaft 511 is rotated. In the present embodiment, the operation lever 51 is provided symmetrically at both ends of the operation shaft 511.

  The operation lever 51 is normally urged by a torsion coil spring 513 so that the operation portion 51a is positioned below, as shown in FIG.

  Further, in the present embodiment, a lock lever 57 is provided in the configuration of the brake operation transmission mechanism 50. The lock lever 57 functions as a brake release holding member that holds the brake release state of the first brake mechanism 41 and the second brake mechanism 42 by the brake operation transmission mechanism 50.

  As shown in FIG. 21, the lock lever 57 is disposed adjacent to the rotary shaft operation lever 512, and has one end projecting outside the table base 11 with the operation portion 57 a, and pivoting with the attachment portion 57 c as a fulcrum. It is provided as possible.

  A lock pin 58 that operates in conjunction with the operation of the lock lever 57 is provided. The lock pin 58 abuts on the rotation shaft operation lever 512 and holds the rotation shaft operation lever 512 at a predetermined position, that is, a position where the brake operation by the brake mechanism 40 is released.

  As shown in FIGS. 21 and 22, the lock pin 58 is in a state where the operation lever 51 is operated so as to release the brake, that is, when the lock lever 57 is operated so as to hold the state where the operation lever 51 is operated upward. As shown in FIG. 20, the lock pin 58 is configured to be positioned below the rotating shaft operation lever 512, that is, on the return direction side.

  The lock lever 57 is urged by a coil spring or the like (not shown) so that the lock pin 58 comes to a position where it does not interfere with the rotary shaft operation lever 512 as shown in FIG. Has been.

  Next, when the mobile table 1 is moved, the brake operation transmission mechanism 50 releases the brakes of the first brake mechanism 41 and the second brake mechanism 42 to make the mobile table 1 movable so as to refer to the drawings. To explain.

  When the movable table 1 is moved, first, the operation lever 51 of the brake operation transmission mechanism 50 is grasped and rotated upward by a predetermined amount as shown in FIGS.

  When the rotation shaft operation lever 512 is rotated in conjunction with the operation of the operation lever 51, the rotation shaft engaging portion 512a rotates the drive pin 524. As the rotary shaft 52 rotates in conjunction with the drive pin 524, the connecting member 55 rotates, so that the inner wires of the operation wires 53 and 54 are pulled by a predetermined amount as shown in FIG.

  In the first leg frame 301 of the leg 30, as shown in FIG. 7, when the operation wire 53 is pulled, the wire operation lever 430 rotates, so that the brake operation wires 531A and 531B are moved in the direction of the arrow A1. Be pulled. When the brake operation wires 531A and 531B are pulled, the brake parts 420A and 420B are rotated in a direction in which the brake pad 421 and the floor surface are separated as shown in FIG. 10, and braking by the brake pad 421 is released. .

  Similarly, in the second leg frame 302 of the leg 30, as shown in FIG. 8, when the operation wire 54 is pulled, the wire operation lever 430 rotates, so that the brake operation wires 531C and 531D are moved to the arrow A1. Pulled in the direction. When the brake operation wires 531C and 531D are pulled, as shown in FIG. 10, the brake parts 420A and 420B rotate in a direction in which the brake pad 421 and the floor surface are separated from each other, and the braking by the brake pad 421 is released. .

  At this time, with the operation lever 51 being operated, the operation portion 57a of the lock lever 57 is rotated in the direction in which the operation lever 51 is locked, as shown in FIGS. As a result, the lock pin 58 enters the position where the lock pin 58 contacts the lower side of the rotary shaft operating lever 512 in conjunction with the lock lever 57. In this state, the rotary shaft operating lever 512 is locked by releasing the gripped operating lever 51. The operation state by the operation lever 51 is maintained in contact with the pin 58.

  In this way, since the brake state of the first brake mechanism 41 and the second brake mechanism 42 is held in a released state, the user continuously moves the table without maintaining the state of gripping the operation lever 51. It can be carried out. Thereby, the burden of operating the operation lever 51 when moving the mobile table 1 can be reduced.

  Next, the operation of ending the movement of the mobile table 1 and setting the first brake mechanism 41 and the second brake mechanism 42 to the brake state will be described with reference to the drawings.

  When the movement of the movable table 1 is ended and the first brake mechanism 41 and the second brake mechanism 42 are returned to the brake state, the operation lever 51 held at a predetermined position (brake release position) is further grasped.

  By further grasping the operation lever 51, the rotation shaft operation lever 512 and the lock pin 58 are separated from each other. Therefore, the engagement state between the rotation shaft operation lever 512 and the lock pin 58 is released, and the lock lever 57 is turned into a torsion coil. The spring 513 returns to the normal position shown in FIG.

  Then, when the gripping state of the operation lever 51 is released and returned to the original state, as shown in FIG. 9, the brake operation wires 531 </ b> A and 531 </ b> B have the arrow B <b> 1 due to the spring force of the torsion coil spring 424. The brake pad 421 protrudes toward the floor surface and comes into contact with the brake pad 421. The second brake mechanism 42 is also in a brake state by a similar operation.

  In this way, the user simply releases the operation lever 51 from the brake release state, releases the holding state of the rotary shaft operation lever 512 by the lock pin 58, and easily performs the first brake mechanism 41 and the second brake. The mechanism 42 can be returned to the brake state.

  Since it comprised as mentioned above, according to this embodiment, it is provided with the table board 10, the support | pillar part 20 which supports the table board 10, and the leg part 30 which supports the support | pillar part 20, A mobile table 1 having a brake mechanism 40 and a moving caster 43 includes a first brake mechanism 41 and a second brake mechanism 42 as the brake mechanism 40, and includes a first brake mechanism 41 and a second brake mechanism 42. A brake operation transmission mechanism 50 for releasing the brake is provided. As a configuration of the brake operation transmission mechanism 50, an operation lever 51 for performing the brake release operation of the brake mechanism 40 and an operation lever 51 as a transmission member for transmitting the operation of the operation lever 51 are provided. A rotation shaft (first transmission member) 52 that transmits the movement of the rotation shaft 52 to the leg 30 side via the support column 20, and the movement of the rotation shaft 52 to the leg 30. The operation wire (second transmission member) 53, 54 that transmits to the brake mechanism 40 that has been cut, and the connecting member 55 that connects the rotary shaft 52 and the operation wires 53, 54 are provided, thereby configuring the transmission member. It is possible to simplify and improve the adjustment and maintenance of the brake mechanism 40. Further, since the rotating shaft 52 and the operation wires 53 and 54 can be easily connected via the connecting member 55, the disassembly and assembling work of the support column 20 and the leg 30 can be facilitated, and the transportation form can be made compact. A mobile table can be realized.

  In this embodiment, as shown in FIGS. 15 and 16, the inner shaft 522 is entirely accommodated inside the outer shaft 521, as shown in FIGS. In this state, the inner shaft 522 is configured to be movable in the vertical direction, and the outer shaft 521 and the inner shaft 522 are configured to be rotatable simultaneously by the guide member 522c. However, the present invention is not limited to this.

Below, the modification 1 of this embodiment is shown.
FIG. 23 is an explanatory view showing a first modification example of the rotating shaft constituting the movable table according to the embodiment of the present invention, and FIG. 24 is an explanatory view showing the structure of each component constituting the rotating shaft.

  In addition, in the structure of the rotating shaft of the modification 1, what has the structure similar to the rotating shaft 52 of the mobile table 1 of embodiment mentioned above attaches | subjects the same code | symbol, and abbreviate | omits description.

  As shown in FIGS. 23 and 24, the rotating shaft 152 of the first modification of the present embodiment includes an outer shaft 1521 and an inner shaft 1522, and the range in which the column portion 20 extends and contracts as in the present embodiment. The inner shaft 1522 is moved along the outer shaft 1521 in the axial direction (vertical direction in the drawing) and is expanded and contracted.

  The outer shaft 1521 is a hollow shaft having a rectangular cross section, and the inner shaft 1522 is accommodated in the hollow portion. A support shaft 1521a that supports the hollow shaft protrudes from one end. In the vicinity of the tip of the support shaft 1521a, an engagement pin 1521b that engages with the connecting member 55 is provided so as to penetrate the support shaft 1521a and protrude outward from the outer periphery.

  In addition, a guide hole 1521c is formed on the outer peripheral portion of the outer shaft 1521 to guide the movement of the inner shaft 1522 in the axial direction without rotating within the outer shaft 1521. The guide hole 1521 c is formed in a long hole shape that allows the movement range of the inner shaft 1522 along the axial direction of the outer shaft 1521.

  The inner shaft 1522 is configured such that one end portion 1522a protrudes from the other end portion of the outer shaft 1521 in a state in which the rotating shaft 152 is contracted, that is, in a state of being accommodated in the outer shaft 1521.

  Further, as shown in FIGS. 23 and 24, the other end portion 1522b of the inner shaft 1522 is a guide member that guides the movement of the inner shaft 1522 in the vertical direction (axial direction) along the guide hole 1521c of the outer shaft 1521. 1522c is provided.

  As shown in FIG. 25, the guide member 1522c is attached to both end portions of the guide pin 1522c1 and the guide pin 1522c1 that protrude from the inner side to the outer side of the outer shaft 1521. The guide pin 1522c1 is attached to the outer shaft 1521 in the vertical direction. A washer 1522c2 that is movably held, and a retaining ring 1522c3 that attaches the washer 1522c2 to the guide pin 1522c1 are provided.

  With the configuration as described above, according to the first modification, as the configuration of the rotating shaft 152, the guide pin 1522 c 1 of the guide member 1522 c is disposed outside the outer shaft 1521 without accommodating the inner shaft 1522 in the outer shaft 1521. Since the inner shaft 1522 guides the vertical movement without rotating along the guide hole 1521c of the outer shaft 1521, the rotational shaft 152 is reduced without using an engaging member. It can be configured compactly with a component configuration.

  In the present embodiment, the brake mechanism is configured such that the brake pad 421 is used to generate a frictional force on the floor surface so as to maintain the stop state. The configuration is not limited to the configuration of the present embodiment.

Below, the modification 2 of this embodiment is shown.
FIG. 26 is an explanatory diagram showing an overall configuration of Modification 2 of the mobile table according to the embodiment of the present invention.
In addition, in the structure of the mobile table of the modification 2, what has the structure similar to the mobile table 1 of embodiment mentioned above attaches | subjects the same code | symbol, and abbreviate | omits description.

  As shown in FIG. 26, the movable table 101 of the second modification of the present embodiment is a caster with a lock mechanism instead of the first brake mechanism 41 as a brake mechanism provided in the first leg frame 1301 constituting the leg 130. 141 may be used, and the brake operation may be performed by combining the second brake mechanism 42 and the caster 141 with the lock mechanism.

  The transmission member that transmits the brake release operation of the caster 141 with the lock mechanism is assumed to be performed using the operation wire 53 similarly to the first brake mechanism 41. Then, the brake releasing operation of the caster 141 with the lock mechanism and the second brake mechanism 42 is performed by operating the rotary shaft 52 to the operation wires 53 and 54 via the connecting member 55 in the same manner as the movable table 1 of the above-described embodiment. It shall be configured to communicate.

  Since it comprised as mentioned above, also in the mobile table 101 of the modification 2, there can exist an effect similar to the mobile table 1 of embodiment mentioned above.

  Furthermore, as a third modification, as a configuration of the brake mechanism, only the caster with a lock mechanism 141 may be provided at four positions on the leg portion 30 to perform the brake operation.

  The present invention is not limited to the above-described embodiments and modifications, and various modifications can be made within the scope shown in the claims. That is, embodiments obtained by combining technical means appropriately changed within the scope not departing from the gist of the present invention are also included in the technical scope of the present invention.

  The moving table of the present invention can be used for medical and nursing beds.

DESCRIPTION OF SYMBOLS 1,101 Mobile table 10 Table board 11 Table base 20 Support | pillar part 30,130 Leg 40 Brake mechanism 41 1st brake mechanism 42 2nd brake mechanism 43 Caster 50 Brake operation transmission mechanism 51 Operation lever (operation part)
51a Operation part 52 Rotating shaft 53, 54 Operation wire 55 Connecting member 57 Lock lever 58 Lock pin 60 Operation lever 141 Caster with lock mechanism 511 Operation shaft 512 Rotation shaft operation lever 512a Rotation shaft engaging part 521, 1521 Outer shaft 521a, 1521a Support shaft 521b, 1521b Engagement pin 522, 1522 Inner shaft 522c, 1522c Guide member 523 Collar 524 Drive pin 531A, 531B, 531C, 531D Brake operation wire 1521c Guide hole

Claims (11)

A table plate, one supporting column supporting the table plate, and a leg supporting the supporting column, and operating a brake mechanism for braking a movable table having a moving caster on the leg. A brake operation transmission mechanism that performs
The brake mechanism is provided on the leg,
The brake operation transmission mechanism includes an operation unit that performs a brake release operation of the brake mechanism, and a transmission member that transmits an operation of the operation unit,
The transmission member includes a first transmission member that transmits the operation of the operation unit to the leg side via the support column, a second transmission member that transmits the operation of the first transmission member to the brake mechanism, A coupling member that couples the first transmission member and the second transmission member and includes an engaging portion that is engageable with one end of the first transmission member ;
The first transmission member is configured using a rotatable shaft body ,
A brake operation transmission mechanism , wherein the entire upper surface of the leg portion is covered with the connecting member and a frame . The first transmission member is provided on the support column.
The second transmission member is provided on the leg,
When the column portion and the leg portion are connected, the first transmission member and the second transmission member are connected, and when the column portion and the leg portion are separated, The brake operation transmission mechanism according to claim 1, wherein the connection state between the first transmission member and the second transmission member is released. The connecting member is configured such that the shaft body of the first transmission member is connected to be rotatable in accordance with the rotation operation of the shaft body,
The brake operation transmission mechanism according to claim 1 or 2, wherein the second transmission member operates the brake mechanism in accordance with a rotation operation of the connecting member. The connecting member and the second transmission member are provided in a leg portion,
The brake operation transmission mechanism according to any one of claims 1 to 3, wherein the second transmission member is an operation wire. The connecting member has a circular shape, and is rotatably provided on a connecting frame provided on the leg portion.
The connecting member is provided with an attachment portion to which the operation wire is attached,
The brake operation transmission mechanism according to claim 4, wherein the operation wire operates with respect to the brake mechanism by rotating the connecting member. The brake mechanism is configured to stop the mobile table without performing a brake release operation,
The brake operation transmission mechanism according to any one of claims 1 to 5 , wherein a brake release of the brake mechanism is performed by operating the operation unit. The operation unit includes an operation shaft and a rotation shaft operation lever,
A lock operation unit including a lock lever and a lock pin that operates in conjunction with the operation of the lock lever;
The brake operation according to any one of claims 1 to 4 , wherein the brake pin is moved into a position where the lock pin comes into contact with the lower side of the rotary shaft operation lever in conjunction with the lock lever, and the brake mechanism is released. Transmission mechanism. The brake operation transmission mechanism according to any one of claims 1 to 7 , wherein the shaft body is configured to be extendable and contractible. The shaft body has a first shaft member and a second shaft member,
The first shaft member and the second shaft member are configured to overlap with each other on the coaxial line so as to be movable in the coaxial line direction, and so that the first shaft member and the second shaft member rotate synchronously. The brake operation transmission mechanism according to claim 8 , wherein the brake operation transmission mechanism is configured. In a mobile table comprising a table plate, a column part that supports the table plate, a leg part that supports the column part, a caster for movement provided on the leg part, and a brake mechanism,
A brake operation transmission mechanism for releasing the brake of the brake mechanism;
A mobile table comprising the brake operation transmission mechanism according to any one of claims 1 to 9 as the brake operation transmission mechanism. The mobile table according to claim 10 , wherein the support column is configured to be extendable and contractible.

Images