CN105476268B - Movable table - Google Patents
Movable table Download PDFInfo
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- CN105476268B CN105476268B CN201510640970.2A CN201510640970A CN105476268B CN 105476268 B CN105476268 B CN 105476268B CN 201510640970 A CN201510640970 A CN 201510640970A CN 105476268 B CN105476268 B CN 105476268B
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- column
- guide
- caster
- wire
- locking
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Abstract
The invention provides a movable table, which is provided with casters with a locking mechanism, and can stably lock/unlock the casters by operating a wire even if the height of the table is changed. A mobile table is provided with a table top (10), a column part (20) for supporting the table top (10), feet (30) with casters (31) and locking mechanisms (32), and a locking/unlocking mechanism (40) for locking/unlocking the casters (31), and the mobile table (1) is characterized in that the locking/unlocking mechanism (40) is provided with an operation wire (41) which is connected to the locking mechanism (32) and performs locking/unlocking operations, the operation wire (41) is stored in the table top (10) and the column part (20) to enable the column part (20) to be telescopic, and the column part (20) is provided with a guide structure (21) for guiding the operation wire (41) according to the telescopic state of the column part (20).
Description
Technical Field
The present invention relates to a mobile table, and more particularly to a mobile table such as a bedside table or a table for passing through a bed, which is provided with casters having a lock mechanism.
Background
Conventionally, in a mobile table such as a bedside table that is used while being disposed at a predetermined position by moving from one side of a bedside in a width direction of a bed, or a bed table that is used while being moved from a foot side of a bed in a length direction of the bed, there is known a mobile table that includes a lock operation mechanism for preventing casters from moving when a user uses the table.
As a conventional technique, for example, in a lifting table in which casters with lock mechanisms are provided at the legs and the column section is extendable and retractable, the following structure is proposed (see patent document 1): an operation lever is provided on the lower part of the table, an operation lever for operating an operation pin of a lock mechanism of the caster is provided on the leg part, an operation wire for connecting the operation lever and the operation lever is provided, and the operation lever is operated by operating the operation lever to operate the operation lever via the operation wire, thereby performing a lock operation of the caster with the lock mechanism.
According to such a configuration, in the elevating type movable table, since the table board side and the leg portion side are connected by the operation wire including the inner wire and the outer wire, the locking operation of the caster with the locking mechanism can be performed by the operation lever without affecting the elevating operation of the table (the extending and contracting operation of the column portion).
Documents of the prior art
Patent document
Patent document 1: japanese patent No. 5327887
However, in the technique of patent document 1, in the elevating table, when the table is lowered and the stay is shortened, it is necessary to eliminate slack of the operation wire in the stay portion, and when the table is raised and the stay is lengthened, it is necessary to smoothly extend the slack operation wire.
Therefore, as a measure for eliminating the slack of the operation wire, a method of accommodating the slack of the operation wire in the column part and a method of accommodating the slack of the operation wire on the table side by pushing the slack of the operation wire to the outside of the column part are known.
In the method of accommodating the slack of the operation wire in the column portion, the operation wire is bent and accommodated, and therefore the operation of the operation wire may be deteriorated. On the other hand, in the case of the method of accommodating the slack of the operation wire on the desk side, the operation wire needs to be retracted and extended in accordance with the movement of extending and contracting the column part to correspond to the length of the column part, and there is a problem that it is difficult to stably change the slack of the operation wire.
Disclosure of Invention
The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a movable table with a lock mechanism, in which locking and unlocking operations of casters by an operation wire can be stably performed even when the height of the table is changed.
Means for solving the problems
The mobile table according to the present invention for solving the above problems is as follows.
The present invention is a movable table, comprising: the movable table is characterized in that a table reinforcing member which is long in the longitudinal direction is provided on the lower side of the table, the unlocking mechanism is provided with an operating wire which is connected to the locking mechanism of the caster with the locking mechanism and performs locking/unlocking operations, the operating wire is stored in the table reinforcing member and the column part, the column part is configured to be capable of extending and contracting, and has a guide structure which guides the operating wire, and the guide structure is configured to be capable of extending and contracting according to the extending and contracting state of the column part.
In the present invention, it is preferable that the change in length of the operation wire in the column section due to the expansion and contraction of the column section is adjusted by the operation wire in the table.
In the present invention, it is preferable that the column part includes two column members provided on the table side and the caster side with the lock mechanism, and is configured to be capable of extending and contracting by moving the other column member along one column member, and the guide structure includes two guide members provided on the one column member and the other column member, and is configured to be capable of extending and contracting by moving the other guide member along one guide member.
In the present invention, it is preferable that a connection portion between the column portion and the table be foldable.
Effects of the invention
The mobile table according to the present invention includes: in the mobile table, a table top, a column part for supporting the table top, a caster with a locking mechanism, and a locking/unlocking mechanism for locking/unlocking the caster with the locking mechanism, wherein a table reinforcing member long in the longitudinal direction is provided on the lower side of the table top, an operation wire for performing locking/unlocking operation is provided as a structure of the locking mechanism, the operation wire is connected to the locking mechanism of the caster with the locking mechanism, the operation wire is stored in the table reinforcing member and the column part, the column part is made to be expandable and contractible, and a guide structure (wire guide) for guiding the operation wire is provided as a structure of the column part, the guide structure is made to be expandable and contractible according to the expansion and contraction state of the column part, therefore, even if the length of the support column part is changed, the operation wire does not deform greatly and moves along the guide structure, and the locking/unlocking operation of the caster by the operation wire can be stably performed. Thus, the height of the table can be freely changed, and a mobile table with excellent operability can be realized.
Further, according to the present invention, the change in length of the operation wire inside the column section due to the expansion and contraction of the column section is adjusted by the operation wire inside the table, and the bent state of the operation wire can be made large. This reduces the load on the operation wire.
Further, according to the present invention, the column part is configured to include two column members provided on the table plate side and the caster side with the lock mechanism, and configured to be capable of extending and contracting by moving the other column member along one column member, and the guide structure is configured to include two guide members provided on the one column member and the other column member, and configured to be capable of extending and contracting by moving the other guide member along one guide member, and configured to guide the operation wire with a simple structure.
Further, according to the present invention, the column section is configured to be foldable at the connection section with the table, so that the portable table can be transported and stored in a space-saving manner when the portable table is transported and stored.
Drawings
Fig. 1 is an explanatory view showing an overall configuration of a portable table according to an embodiment of the present invention.
Fig. 2 is an explanatory view of a front view showing the entire structure of the movable table.
Fig. 3 is an explanatory view showing a side view of the entire structure of the movable table.
Fig. 4 is an explanatory view showing a side view of a state where the movable table is lifted.
Fig. 5 is an explanatory view showing a structure of a guide member provided in a column section constituting the traveling table.
Fig. 6 is an explanatory view showing a state of the guide member when the movable table is lifted.
In fig. 7, (a) is an explanatory view showing a state of a connection portion between the column part and the table when the column part is erected using the mobile table, and (b) is an explanatory view showing a state of a connection portion between the column part and the table when the column part is folded.
In fig. 8, (a) is an explanatory view showing a configuration of a leg portion constituting the above-described movable table, and (b) is an explanatory view showing a configuration of a caster and a lock mechanism constituting the above-described leg portion.
Fig. 9 is an explanatory view showing an overall configuration of a lock release mechanism constituting the movable table.
Fig. 10 is an explanatory view showing an installation state of the operation wire constituting the lock release mechanism.
Fig. 11 is an explanatory view showing a structure of coupling of the operation wire from the table side to the stay side.
Fig. 12 is an explanatory diagram showing a structure of a wire rod constituting the lock release mechanism.
Fig. 13 is an explanatory diagram showing a structure of an operation lever constituting the lock release mechanism.
FIG. 14 is an explanatory view showing the arrangement of a stopper button constituting the lock release mechanism
Fig. 15 is an explanatory diagram showing a positional relationship between the stopper button and the wire rod.
Fig. 16 is an explanatory diagram showing a structure of the stopper button.
In fig. 17, (a) is a sectional view showing an attached state of the stopper button, and (b) is an explanatory view showing a state in which the stopper button is operated.
Fig. 18 is an explanatory diagram showing a structure of example 2 of the stopper button constituting the lock release holding member of the present embodiment.
Fig. 19(a) is a cross-sectional view showing the attached state of the detent button of embodiment 2, and (b) is an explanatory view showing the state in which the detent button is operated.
Description of the symbols
1 Movable table
10 desk board
20 column part
21 guide structure
30 feet
31 Caster wheel
32 locking mechanism
40 unlocking mechanism
41 handling wire
101 upper surface
102 lower surface
103 table reinforcing part
201 st prop member
202 nd 2 pillar part
211 guide member
212 guide member
411 inner wire
412 outer wire
Detailed Description
Hereinafter, a mode of the movable table for carrying out the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is an illustrative view showing an overall configuration of a mobile table according to an embodiment of the present invention, fig. 2 is an illustrative view showing a front view showing the overall configuration of the mobile table, fig. 3 is an illustrative view showing a side view showing the overall configuration of the mobile table, fig. 4 is an illustrative view showing a side view showing a state where the mobile table is raised, fig. 5 is an illustrative view showing a configuration of a guide member provided in a column part constituting the mobile table, fig. 6 is an illustrative view showing a state of the guide member when the mobile table is raised, fig. 7 is (a) an illustrative view showing a state of a connection part between the column part and a table plate when the column part is opened in a mobile table use, and (b) an illustrative view showing a state of a connection part between the column part and the table plate when the column part is folded, in fig. 8, (a) is an explanatory view showing a configuration of a leg portion constituting the above-described movable table, and (b) is an explanatory view showing a configuration of a caster and a lock mechanism constituting the above-described leg portion.
As shown in fig. 1 to 3, the movable table 1 according to the present embodiment is a table for passing over a bed, and includes: a table plate 10; a column part 20 for supporting the table board 10; a foot 30 provided with a caster 31 with a lock mechanism (hereinafter referred to as "caster") provided at the base of the column part 20; and a lock release mechanism 40 for locking/releasing the caster 31 by wire operation, the movable table is characterized by having a structure which is characteristic of the movable table of the present invention.
First, the overall structure of the mobile table 1 according to the present embodiment will be described with reference to the drawings.
As shown in fig. 1 and 2, the table 10 is formed in an elongated rectangular shape that can be disposed across the bed device (not shown) in the width direction of the bed device.
The table 10 includes an upper surface 101 and a lower surface 102.
The column parts 20 are disposed at both longitudinal ends of the lower surface 102, and the movable table 1 is formed in a door shape. The base of the column part 20 includes a leg part 30, and the leg part 30 includes a caster 31.
As shown in fig. 2, a table reinforcing member 103 is provided on the lower side of the lower surface 102 so as to be long in the longitudinal direction. The table reinforcing member 103 is configured to be foldable with the column part 20.
As shown in fig. 1 and 3, a lock release mechanism 40 is provided below the side end portion of the table 10 in the longitudinal direction. A bendable and extendable operation wire 41 constituting a part of the lock release mechanism 40 is laid between the table top 10 and the table reinforcing member 103.
In the mobile table 1, the operation wire 41 is housed inside the table reinforcing member 103 and inside the column part 20.
Here, a characteristic structure of the column part 20 of the present embodiment will be described with reference to the drawings.
As shown in fig. 3 and 4, the column part 20 is configured to be expandable and contractible. Specifically, the column part 20 includes the 1 st column member 201 and the 2 nd column member 202, and the column part 20 is configured to be expanded and contracted by moving the 2 nd column member 202 together with the table 10 in the vertical direction in the figure along the 1 st column member 201.
The 1 st column member 201 is provided on the leg 30 side, and the 2 nd column member 202 is provided on the table 10 side, and the height of the table 10 can be adjusted by the user by performing an operation of lifting or pressing the table 10 by a drive mechanism not shown.
A guide structure 21 is formed inside the column part 20, and the guide structure 21 guides the operation wire 41 disposed inside the column part 20 in accordance with the expansion and contraction operation of the column part 20.
The guide structure 21 includes the 1 st guide member 211 and the 2 nd guide member 212, and the guide structure 21 is configured to be extended and contracted by moving the 2 nd guide member 212 in the vertical direction in the figure along the 1 st guide member 211 within a range in which the column part 20 is extended and contracted.
The 1 st guide member 211 is provided on the 1 st column member 201 side, and the 2 nd guide member 212 is provided on the 2 nd column member 202 side, and is configured to guide the operation wire 41 arranged inside the column section 20 so as not to bend even if the length of the operation wire changes due to the expansion and contraction of the column section 20.
Specifically, as shown in fig. 5, the 1 st guide member 211 and the 2 nd guide member 212 are formed of tubular bodies and have inner diameters to such an extent that the operation wire 41 disposed inside does not bend greatly. As the material, a resin material or a metal material can be used.
As shown in fig. 5 and 6, even when the column section 20 is in the expanded and contracted state, the 2 nd guide member 212 is disposed so that the operation wire 41 can be easily moved inside the column section 20, and the 1 st guide member 211 is disposed so that the 2 nd guide member 212 and the operation wire 41 can be easily moved inside the column section 20.
As shown in fig. 7(a) and (b), in the column part 20, the 2 nd column member 202 is attached to the table reinforcing member 103 so as to be foldable, and the table reinforcing member 103 is provided at the lower portion of the table top 10.
The 2 nd pillar member 202 is integrally provided with a pillar coupling portion 203 attached to the table reinforcing member 103.
As shown in fig. 7(a), the strut connecting portion 203 includes a pivotal support portion 203a and fixing portions 203b and 203 c.
The column coupling portion 203 pivotally supports the column coupling portion 203 to the table reinforcing member 103 so as to be rotatable about the pivot support portion 203 a.
When the column part 20 is folded, the rotation support part 203a functions as a fulcrum of the rotation column coupling part 203, and guides the rotation of the column coupling part 203 along the elongated guide hole 103a formed in the table reinforcing member 103. The pivot support portion 203a is engaged with the guide hole 103a via a support member not shown in the table use state.
The fixing portions 203b and 203c are fixed to mounting holes 103b and 103c formed in the table reinforcing member 103 by fastening members, not shown, in the table use state.
By providing the column connecting portion 203 in this way, when the movable table 1 is used, the 2 nd column member 202 can be reliably fixed to the table reinforcing member 103 at two locations of the fixing portions 203b and 203c by the fastening members in a state where the rotation supporting portion 203a is engaged with the supporting member.
On the other hand, when the movable table 1 is not used, the 2 nd column member 202 can be simply folded and compactly stored in a state where the column coupling member 203 is coupled to the table reinforcing member 103 by the pivotal support portion 203a simply by removing the fastening members of the fixing portions 203b and 203 c.
Next, the leg 30 will be explained.
As shown in fig. 8(a) and (b), the leg 30 includes a caster 31, a lock mechanism 32 that locks and unlocks a rotational operation of the caster 31, and a leg frame 33 in which the caster 31 and the lock mechanism 32 are assembled.
As shown in fig. 8(a), the leg frame 33 is formed long in the width direction of the table 10, and casters 31 are attached to both ends thereof.
As shown in fig. 8(b), the caster 31 is pivotally supported on a mounting bracket 331 attached to an end of the foot frame 33 so as to be rotatable about a mounting shaft 311. A brake shoe support shaft 322 that supports a brake shoe 321 is attached coaxially with the attachment shaft 311 so as to be movable in the axial direction of the attachment shaft 311.
As shown in fig. 8 b, the brake shoe support shaft 322 is biased by a coil spring 323 in a direction (upward in the drawing) in which the brake shoe 321 is separated from the caster 31.
The brake shoe 321 is driven to operate by an operating arm 324 constituting the lock mechanism 32. The brake shoe support shaft 322 abuts against a stopper 324c provided to protrude from the operation arm 324, thereby setting the position of the brake shoe 321.
One end 324a of the operating arm 324 is pivotally supported by a support portion 331a via a support shaft 325, the support portion 311 is provided outside the mounting position of the caster 31 (the position where the shaft 311 is mounted) of the mounting bracket 331, and the other end 324b is connected to the inner wire 411 via a connecting pin 326. At the other end 324b, a long hole-shaped guide hole 324c for guiding the movement of the coupling pin 326 is formed.
The operation arm 324 is disposed across the center portion from the end portion of the foot frame 33.
The operation arm 324 rotates the operation other end portion 324b in the vertical direction with the support shaft 325 as a fulcrum by the inner wire 411.
When the other end 324b of the operating arm 324 is rotated upward, the stopper 324c is displaced upward, and the brake shoe 321 is moved upward by the spring force of the coil spring 323 and in a direction away from the caster 31, that is, in a direction to release the lock of the caster 31.
On the other hand, when the other end portion 324b is rotated downward by the spring force of the coil spring 327, the stopper portion 324c is displaced downward, and the brake shoe 321 is moved downward against the spring force of the coil spring 323 in a direction of coming into contact with the caster 31, that is, in a direction of locking the caster 31.
The operation arm 324 is connected to the other end 324b of the operation arm 324 of the other caster 31 disposed at the other end of the foot frame 33 in the central portion of the foot frame 33 by a connection pin 326.
With this configuration, the lock mechanisms 32 at both ends of the operating arm 324 can be simultaneously operated by operating the inner wire 411 coupled to the coupling pin 326.
Next, the lock release mechanism 40 will be described with reference to the drawings.
FIG. 9 is an explanatory view showing the overall structure of a lock release mechanism constituting the movable table, FIG. 10 is an explanatory view showing a state in which the operation wire constituting the lock release mechanism is disposed, fig. 11 is an explanatory view showing a structure of coupling of the operation wire from the table side to the stay portion side, FIG. 12 is an explanatory view showing a structure of a wire rod constituting the lock release mechanism, FIG. 13 is an explanatory view showing a structure of an operation lever constituting the lock release mechanism, FIG. 14 is an explanatory view showing the arrangement of a stopper button constituting the lock release mechanism, FIG. 15 is an explanatory view showing the positional relationship between the stopper button and a wire rod, fig. 16 is an explanatory view showing a structure of the detent button, and fig. 17(a) is a sectional view showing an attached state of the detent button, and (b) is an explanatory view showing a state in which the detent button is operated.
As shown in fig. 1, 2, and 9, the lock release mechanism 40 includes an operation wire 41, a wire rod 42, an operation shaft 43, an operation lever 44, a stopper button 45, and an operation portion cover 46.
As shown in fig. 8 to 12, the operation wire 41 includes an inner wire 411 and an outer wire 412 that operate, and the operation wire 41 is connected to the wire rod 42 on the table 10 side and the lock mechanism 32 of the caster 31 on the leg portion 30 side and is operated to lock and unlock.
As shown in fig. 10, one end of the operation wire 41 is attached to the wire rod 42, and as shown in fig. 11, the operation wire is laid from the table 10 side to the leg 30 side through the inside of the column part 20, and as shown in fig. 8(a), the other end is attached to the operation arm 324 through the connection pin 326 of the lock mechanism 32 of the caster 31 of the leg 30.
And, the operation wire 41 is curvedly laid in the following manner: the locking/unlocking operation of the locking mechanism 32 of the caster 31 can be performed within the range in which the column part 20 extends and contracts, and as shown in fig. 9, a length margin can be maintained between the table top 10 and the table reinforcing member 103.
Specifically, as shown in fig. 12, in a state where one end portion of the inner wire 411 is attached to the wire rod 42, and as shown in fig. 10, one end portion of the outer wire 412 is attached to the operation wire attachment portion 102a provided near the center of the table reinforcing member 103 via the coupling member 412a, the operation wire 41 is bent in an arc shape near the center of the table reinforcing member 103 and is left as it is, as shown in fig. 11, drawn around the leg portion 30 from the side end portion of the table reinforcing member 103 via the wire guide portion 48 and through the inside of the column portion 20, as shown in fig. 8(a), the other end portion of the inner wire 411 is attached to the lock mechanism 32 of the caster 31, and the other end portion of the outer wire 412 is attached to a part of the leg portion 30.
The wire guide portion 48 is formed of a curved cylindrical body, and guides the wire so as to avoid an extremely small curve R when the operation wire 41 is displaced due to the expansion and contraction of the column portion 20.
The operation wire 41 is laid in the same manner across the leg portion 30 from two column portions 20 provided on both side portions of the table 10.
As shown in fig. 12, the wire rod 42 is disposed in the vicinity of the center of the table reinforcing member 103 at the lower portion of the table top 10, and is operated by connecting one end portion of the inner wire 411, so that the lock mechanisms 32 of the casters 31 of the leg portions 30 disposed at two positions at both end portions of the mobile table 1 to which the other end portion of the inner wire 411 is connected are simultaneously operated.
As shown in fig. 9, the operation shaft 43 is provided long along the longitudinal side end of the table reinforcing member 103, and is rotatably attached to the table reinforcing member 103. A wire rod 42 is integrally provided near the central portion of the operation shaft 43 in the longitudinal direction, and the wire rod 42 integrally rotates with the rotation of the operation shaft 43.
As shown in fig. 13, the operation lever 44 is a lever portion having a substantially L shape with one end protruding outward, and the other end integrally provided with the operation shaft 43 to rotate the operation shaft 43.
In the present embodiment, the operation levers 44 are provided at both end portions of the operation shaft 43.
The stopper button 45 functions as an unlock holding member that holds the unlock state of the lock mechanism 32 of the caster 31 by the unlock mechanism 40.
As shown in fig. 14 and 15, the operation portion cover 46 covers the vicinity of the wire rod 42, and the stopper button 45 is disposed at a predetermined position with respect to the wire rod 42.
As shown in fig. 16 and fig. 17(a) and (b), the stopper button 45 is formed of a cylindrical body having a flange 45a formed on one end side and an opening opened on the other end side, and the coil spring 451 is disposed inside the cylindrical body. An abutting portion 45b protruding to the outside of the cylindrical body is formed along the outer periphery at the end of the other end side of the stopper button 45.
The stopper button 45 is normally biased by a coil spring 451 to protrude outward from the operation unit cover 46.
As shown in fig. 14, the flange portion 45a functions as a stopper for preventing the stopper button 45 from entering the inside of the operation portion cover 46 when the stopper button 45 is pushed into the operation portion cover 46.
In the present embodiment, the stopper button 45 is configured to be in contact with a part (rib 42a) of the wire rod 42 to be operated and to maintain the state in which the wire rod 42 is operated, as shown in fig. 15, in a state in which the operation portion cover 46 is pushed in, as shown in fig. 14.
Next, the operation state of the operation wire 41 when the height of the movable table 1 is changed will be described with reference to the drawings.
First, when the height of the table top 10 of the movable table 1 is increased, the 2 nd column member 202 moves upward along the 1 st column member 201 in the column part 20 as shown in fig. 4.
At this time, in the guide structure 21, the 2 nd guide member 212 provided integrally with the 2 nd pillar member 202 moves upward along the 1 st guide member 211 provided integrally with the 1 st pillar member 201.
Thus, when the height of the table top 10 of the movable table 1 is increased by the operation, as shown in fig. 6, in the guide structure 21, the 2 nd guide member 212 is in a state of being extended from the 1 st guide member 211, and therefore the operation wire 41 is moved along the 1 st guide member 211 and the 2 nd guide member 212 and the operation wire 41 is arranged to be long.
On the other hand, when the height of the table top 10 of the movable table 1 is lowered, as shown in fig. 3, the 2 nd column member 202 moves downward along the 1 st column member 201 in the column part 20.
At this time, in the guide structure 21, the 2 nd guide member 212 provided integrally with the 2 nd column member 202 moves downward along the 1 st guide member 211 provided integrally with the 1 st column member 201.
Thus, when the height of the table top 10 of the movable table 1 is lowered by the operation, as shown in fig. 5, the 2 nd guide member 212 is retracted into the 1 st guide member 211 in the guide structure 21, and therefore the operation wire 41 is not bent along the 1 st guide member 211 and the 2 nd guide member 212 and is disposed in a shortened state. At this time, the amount of change in the length of the operation wire 41 according to the amount by which the table 10 is lowered is moved along the 1 st guide member 211 and the 2 nd guide member 212 and stored on the table 10 side.
In this way, even if the height of the table top 10 of the movable table 1 is changed, the operation wire 41 can move along the guide structure 21 configured to extend and contract, and therefore the operation wire 41 can be stored on the table top 10 side and the column part 20 side without causing a problem due to deformation.
Since the above configuration is adopted, according to the present embodiment, the movable table 1 includes: in the mobile table 1, the operation wire 41 connected to the lock mechanism 32 and operated to lock/unlock the table is provided as a structure of the lock release mechanism 40, the operation wire 41 is stored in the table reinforcing member 103 and the inside of the column part 20 to form the column part 20 in an expandable and contractible manner, the guide structure 21 for guiding the operation wire 41 is provided as a structure of the column part 20, the 1 st guide member 211 and the 2 nd guide member 212 are provided as a structure of the guide structure 21, and the guide structure 21 is configured to be expandable and contractible in accordance with the expanded and contracted state of the column part 20, whereby the operation wire can move along the guide structure 21 without being largely deformed even if the length of the column part 20 changes, therefore, the locking/unlocking operation of the caster 31 can be stably performed by operating the wire 41.
This allows the height of the table top 10 to be freely changed, and the portable table 1 with excellent operability to be realized.
In the present embodiment, the detent button 45 functioning as the lock release holding member is configured such that the detent button 45 enters the operation cover 46 when the lock release operation is performed, as shown in fig. 17(a) and (b).
Hereinafter, example 2 of the stopper button 45 constituting the lock release mechanism of the present embodiment will be described.
Fig. 18 is an explanatory view showing a structure of example 2 of the detent button constituting the lock release holding member of the present embodiment, and in fig. 19, (a) is a sectional view showing an attached state of the detent button of example 2, and (b) is an explanatory view showing a state where the detent button is operated.
In embodiment 2, as shown in fig. 18, the lock release holding member has the following structure: the operation cover 146 is provided with a guide portion 146a, and the stopper button 145 is attached to be movable along the guide portion 146 a.
Specifically, as shown in fig. 18, 19(a) and (b), a guide portion 146a for guiding the stopper button 145 is formed on the operation cover 146. The guide portion 146a is formed in a cylindrical shape.
The stopper button 145 includes a button portion 145a that moves along the outer periphery of the guide portion 146a and an abutting portion 145b that moves along the inner periphery of the guide portion 146 a. The push button portion 145a and the contact portion 145b are integrally coupled by a mounting screw 145 c.
The push button portion 145a is formed of a cylindrical body having an attachment portion 145a1 on one end side to which the contact portion 145b is attached and an opening on the other end side, and a coil spring 1451 is disposed inside the cylindrical body.
The contact portion 145b is formed in a columnar shape, and has a screw hole at one end portion to be connectable to the button portion 145a, and a flange portion 145b1 protruding outside the columnar body at the other end portion. The abutting portion 145b may be formed of a metal member.
As shown in fig. 19(a) and (b), the flange portion 145b1 functions as a stopper for preventing the stopper button 145 from being ejected from the operation portion cover 146, and abuts against a part of the wire rod 42 to maintain the operating state of the wire rod 42.
In this embodiment, it is constituted in the following manner: when the lock release holding operation is performed, as shown in fig. 19(a) and (b), the stopper button 145 is displaced toward the operation cover 146 by a predetermined amount, and the abutting portion 145b protrudes into the operation cover 146 and abuts against a part (rib 42a) of the operated wire rod 42, thereby holding the state in which the wire rod 42 is operated.
Since the above configuration is adopted, according to embodiment 2, when the lock release holding operation is performed by pressing the stopper button 145, the contact portion 145b is guided by the guide portion 146a of the operation cover 146 and smoothly operates, and thus operability can be improved.
The present invention is not limited to the above-described embodiments and examples, and various modifications can be made within the scope of the claims. That is, embodiments obtained by combining technical means appropriately modified within a range not departing from the gist of the present invention are also included in the technical scope of the present invention.
Industrial applicability of the invention
The bed device of the present invention can be used for medical and nursing beds.
Claims (5)
1. A mobile table is provided with: a table, a column part for supporting the table, a caster with a locking mechanism, and a locking/unlocking mechanism for locking/unlocking the caster with the locking mechanism,
a table reinforcing member which is long in the longitudinal direction is provided on the lower side of the table plate,
the lock release mechanism includes a pair of operation wires connected to the lock mechanism of the caster with lock mechanism to perform lock/lock release operations, a wire rod connected to the wire rod, an operation shaft connected to the operation shaft, and an operation lever connected to the operation shaft, the wire rod being disposed at a center in a longitudinal direction of the operation shaft, the wire rod, the operation shaft, and the operation rod being integrated with each other,
the pair of operation wires are housed inside the table reinforcing member and inside the column section, the pair of operation wires are disposed inside the table reinforcing member so as to be symmetrical in the longitudinal direction of the table top,
the column section is configured to be expandable and contractible, and has a guide structure for guiding the pair of operation wires,
the guide structure is configured to be capable of extending and contracting in accordance with the extended and contracted state of the column section.
2. The mobile table of claim 1,
the change in the length of the pair of operation wires inside the column section caused by the expansion and contraction of the column section is adjusted by the pair of operation wires inside the table,
the pair of operation wires are disposed near the center of the table reinforcing member so as to be movable in a state of being bent in an arc shape.
3. The mobile table of claim 1,
the column section includes two column members provided on the table side and the caster side with the lock mechanism, and is configured to be capable of extending and contracting by moving the other column member along one column member,
the guide structure includes two guide members provided on the one pillar member and the other pillar member, and is configured to be capable of extending and contracting by moving the other guide member along the one guide member.
4. The mobile table of claim 2,
the column section includes two column members provided on the table side and the caster side with the lock mechanism, and is configured to be capable of extending and contracting by moving the other column member along one column member,
the guide structure includes two guide members provided on the one pillar member and the other pillar member, and is configured to be capable of extending and contracting by moving the other guide member along the one guide member.
5. The mobile table according to any one of claims 1 to 4,
the connection part of the pillar part and the table board can be folded.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-204936 | 2014-10-03 | ||
| JP2014204936A JP6505409B2 (en) | 2014-10-03 | 2014-10-03 | Mobile table |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105476268A CN105476268A (en) | 2016-04-13 |
| CN105476268B true CN105476268B (en) | 2020-07-10 |
Family
ID=55663827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510640970.2A Active CN105476268B (en) | 2014-10-03 | 2015-09-30 | Movable table |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6505409B2 (en) |
| CN (1) | CN105476268B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD895325S1 (en) | 2018-04-16 | 2020-09-08 | Playground Store Limited | Desktop with stowed legs |
| CN109996466B (en) * | 2018-04-16 | 2021-12-28 | 游乐场商店有限公司 | Table system |
| USD879514S1 (en) | 2018-04-16 | 2020-03-31 | Playground Store Limited | Desk |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2275991Y (en) * | 1996-08-15 | 1998-03-11 | 青岛泰发集团公司 | Multifunctional hand cart |
| CN2596852Y (en) * | 2002-12-20 | 2004-01-07 | 邓娇 | Dining table with wheels |
| CN201640960U (en) * | 2009-10-15 | 2010-11-24 | 仇明华 | Functional tea table |
| EP2639079A1 (en) * | 2012-03-16 | 2013-09-18 | Tente Roulettes Polymeres - Bruandet | Braked castor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5775234A (en) * | 1995-10-12 | 1998-07-07 | Bissell Inc. | Height adjustable overbed table and locking device therefor |
| JP3690679B2 (en) * | 2002-11-01 | 2005-08-31 | パラマウントベッド株式会社 | Table device having leg folding function |
| JP5313823B2 (en) * | 2009-09-18 | 2013-10-09 | トーヨーベンディング株式会社 | Bulletin board on a table with casters |
| JP5327887B2 (en) * | 2010-05-12 | 2013-10-30 | パラマウントベッド株式会社 | Operation mechanism of caster with lock mechanism in elevating type moving table |
| JP6004567B2 (en) * | 2012-07-17 | 2016-10-12 | トーヨーベンディング株式会社 | Overbed table |
-
2014
- 2014-10-03 JP JP2014204936A patent/JP6505409B2/en not_active Expired - Fee Related
-
2015
- 2015-09-30 CN CN201510640970.2A patent/CN105476268B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2275991Y (en) * | 1996-08-15 | 1998-03-11 | 青岛泰发集团公司 | Multifunctional hand cart |
| CN2596852Y (en) * | 2002-12-20 | 2004-01-07 | 邓娇 | Dining table with wheels |
| CN201640960U (en) * | 2009-10-15 | 2010-11-24 | 仇明华 | Functional tea table |
| EP2639079A1 (en) * | 2012-03-16 | 2013-09-18 | Tente Roulettes Polymeres - Bruandet | Braked castor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105476268A (en) | 2016-04-13 |
| JP6505409B2 (en) | 2019-04-24 |
| JP2016073384A (en) | 2016-05-12 |
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