JP2017221355A - Anchor for vertically movable table - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an anchor for a vertically movable table by the stretch of a single wire.SOLUTION: There are a table section that is vertically movable and a base section that has casters and movable. The base section is provided with an anchor mechanism part for anchoring on the floor while the table section is provided with an operation part for operating the anchor mechanism part. Also, a coordination part is prepared which coordinates the anchor mechanism part and the operation part. On the base section, a first prop is provided that is fixed and, on the table section, a second prop is provided that is movable, with a prop part installed making the first prop and the second prop fitted to each other, slidable and variable in length. The coordination part makes a structure in which a wire with one end fixed in a wire fixing part near the upper end of the first prop of the base section is stretched over a first displacing pulley and a second displacing pulley in this order that are installed respectively in the table section, and in which the wire with the other end is connected to the anchor mechanism part of the base section. Then, one of the first displacing pulley and the second displacing pulley is made variable in position and made the operation part, in the anchor for the vertically movable table.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an elevating table fixing device in which a table portion of a side table or an overbed table disposed on a hospital bed or the like moves up and down.

Traditionally, hospital beds have been provided with side tables and overbed tables that move up and down the table, but they are designed to be locked or unlocked for each caster. There were times when it was necessary to perform troublesome work for teachers.
Therefore, as disclosed in Patent Document 1, the present inventors have arranged a side table and an overbed table on which a table is raised and lowered on a hospital bed or the like, and this raising and lowering table is a caster provided on the table portion. By operating the operation unit, a mechanism is provided to fix the caster unit to the floor, and to release the caster unit when the elevator table is moved.

JP 2013-42888 A

  The bedside table that can be raised and lowered, which is a kind of the lifting table disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 2013-42888) described above, has the collective lock / release operation lever of the caster at the side or bottom of the table portion, Although it is a bedside table that is arranged near the lift lever to simplify the operation and complete the operation once, the drive transmission mechanism uses a coaxial cable, so the production cost is expensive. There was a problem that there was.

  An object of the present invention has been made in view of the above-mentioned problems, so that the caster of the lifting table is locked / unlocked or is not moved by floating the caster, etc. by passing a single non-coaxial wire. An object of the present invention is to provide a fixing device for an elevating table.

  In order to solve the above-mentioned problem, the invention of claim 1 is a lifting mechanism having a table part that moves up and down and a base part that has a caster and is movable. And an operating part for operating the fixing mechanism part is provided in the table part, a cooperation part for linking the fixing mechanism part and the operating part is provided, a first support post fixed to the base part side, A movable column is provided on the side of the table unit, and a column unit of which the first column and the second column are fitted to each other and slid to change the length is provided. The wire fixed to the wire fixing portion in the vicinity of the upper end of the first support portion of the base portion is passed over the first direction change pulley and the second direction change pulley respectively provided on the table portion, and the other end of the wire is connected to the base portion. of A structure obtained by connecting to the constant mechanism, a fixing device of the lifting table, characterized in that said operating unit either the first direction changing pulley and said second direction changing pulley as a position variable.

The invention of claim 2 corresponds to the first embodiment. In the lifting table fixing device according to claim 1, the first direction change pulley is positioned below the wire fixing portion, and the second direction change is performed. The pulley is the operation unit whose position is variable.
Invention of Claim 3 respond | corresponds to Example 2 and 3, In the fixing device of the raising / lowering table of Claim 1, the said 1st direction change pulley is located above the said wire fixing part, and this 1st The direction change pulley is the operation portion whose position is variable.

According to a fourth aspect of the present invention, in the lifting table fixing device selected from the first to third aspects, the mechanism is a mechanism for locking / unlocking the wheels of the caster.
The invention according to claim 5 is characterized in that the fixing mechanism grounds the stopper plate and floats the caster wheel of the caster from the floor.

According to the lifting table of the present invention, the fixing mechanism portion of the base portion can be operated with one wire by the operation portion provided on the table portion. Therefore, it can be made much cheaper than using a conventional coaxial wire. Moreover, since only one wire is operated, the effect that the force which operates an operation lever becomes light rather than a coaxial wire is also show | played.
The fixing mechanism unit can use a conventional caster lock / release mechanism, and can reliably fix the lifting table to a predetermined floor surface. Further, as the fixing mechanism, a conventional caster wheel is floated and the stopper plate is grounded. Therefore, an expensive caster lock / release mechanism is not required, and the fixing mechanism can be manufactured at low cost.

BRIEF DESCRIPTION OF THE DRAWINGS It is a wire path | route figure which shows the concept of Example 1 of this invention, FIG.1 (a) is a wire state of the state which lowered | hung the table, FIG.1 (b) is a figure of the wire state of the state which raised the table, FIG. 2A is a wire path diagram showing the concept of Embodiment 2 of the present invention, FIG. 2A is a wire state in a state where the table is lowered, FIG. 2B is a diagram of a wire state in which the table is raised, Side cross-sectional view of the state in which the operating lever of Embodiments 1 and 2 of the present invention is lowered and the side table is fixed, 3 is a bottom view of the table bottom of the operation unit excluding the column of FIG. Side cross-sectional view of the state where the operation lever is operated and the side table is movable, The bottom view of the side table of Examples 1 and 2, Front sectional view showing the relationship between the caster 411 of the leg 33, the rotating rod 412, and the pendulum pulley 414, The side view of the caster of the 1st fixing mechanism part, The front enlarged view of the state where the caster of FIG. 8 is locked, FIG. 8 is an enlarged front view of the caster of FIG. 8 in an unlocked state. 11 (a) is an overall side view of the fixed leg portion, FIG. 11 (b) is an overall side view of the movable leg portion, The front enlarged view of the state where the stopper plate 421 of the second fixing mechanism part is lowered and the caster is locked, A front enlarged view of a state in which the stopper plate 421 of the second fixing mechanism portion is retracted upward and lowered and the caster is grounded and movable; FIG. 14A is a wire path diagram showing the concept of Example 3 of the present invention, FIG. 14A is a wire state in a state where the table is lowered, FIG. 14B is a diagram of a wire state in which the table is raised, Side cross-sectional view of the operation lever of Example 3 of the present invention is lowered and the side table is fixed, The bottom view of the operation part except the support | pillar of FIG. 15 of Example 3. FIG. It is side surface sectional drawing of the state which the operation lever of Example 3 is operated and goes up and a side table can move.

Here, as a preferred embodiment of the present invention, a side bed table as a lifting table will be described with reference to the drawings.
[Example 1]
A lifting table according to a first embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a wire path diagram showing the concept of the first embodiment of the present invention. 1A shows a state in which the table unit 2 is lowered, and FIG. 1B shows a state in which the table unit 2 is raised, but the side table (elevating table) 1 has a table unit 2 that moves up and down and a caster. It has the base part 3 which has 411 and is movable. The base part 3 is provided with a fixing mechanism part 4 such as a stopper 421 for fixing the caster 411 or the like to the floor, or for fixing the leg part by floating the caster 411, and an operation part 5 for operating the fixing mechanism part 4. A linkage unit 6 is provided in the table unit 2 that moves up and down to link the fixing mechanism unit 4 and the operation unit 5 together.
The table portion 2 is supported by the base portion 3 with a column portion 7 whose length expands and contracts, but is fixed to the first column 31 that is the fixed column portion 7 on the base portion 3 side and the table portion side that moves up and down. The second support column 21 which is the supported support column 7 is provided, and the first support column 31 and the second support column 21 are fitted to each other to form the support column 7 having a variable length of sliding.

The linkage unit 6 is mainly provided inside the support column 7 and the bottom of the table unit 2, and the linkage unit 6 is a wire having one end fixed to a wire fixing unit 66 near the upper end of the first support column 31 in the base unit. W is passed in the order of the first direction change pulley 61 and the second direction change pulley 62 provided on the table part 2 respectively, and the other end W2 of the wire W is connected to the fixing mechanism part of the base part 3, The two-direction changing pulley 62 is variable in position to form the operation unit 5.
In the first embodiment, the first direction change pulley 61 is located below the wire fixing portion 66 and the second direction change pulley 62 constitutes the position variable operation portion 5 as described above. Although one wire W is passed over the pulleys 61 to 62 and the fixing mechanism unit 4 is operated, it will be described that the wire W does not act on the fixing mechanism unit 4 simply by moving the table unit 2 up and down.

First, one end W <b> 1 of one wire W is fixed to the wire fixing portion 66 near the upper end of the base portion 3. Next, the wire is routed in the order of the first direction change pulley 61 and the second direction change pulley 62 on the second column 21 table part 2 side, and the other end W2 of the wire is connected to the fixing mechanism part 4 of the base part 2. Connected.
Therefore, when the table portion 2 in FIG. 1A is lowered to the state in which the table portion 2 in FIG. 1B is raised, the wire fixing portion 66 in the first support column 31 in FIG. The distance between the first direction change pulley 61 and the first direction change pulley 61 is shortened by x1, but as shown in FIG. 1B, the distance between the second direction change pulley 62 and the pendulum poop 414 is increased by y1 to absorb the above x1 ( x1 = y1). As a result, unless the operation unit 5 is operated, the path length between the wire fixing unit 66 and the pendulum pulley 414 is unchanged.

[Example 2]
Next, the concept of the second embodiment will be described with reference to FIG. 2. FIG. 2 is a wire route diagram, FIG. 2 (a) is a state in which the table portion 2 is lowered, and FIG. 2 (b) is a table portion. 2 is raised, but the difference from the first embodiment is that the order in which the wires W are routed is changed, the first direction changing pulley 61 on the table portion 2 side is positioned above the wire fixing portion 66, and this The first direction change pulley 61 is used as the operation unit 5, and other configurations are implemented in that a third direction change pulley 63 corresponding to the second direction change pulley 62 provided on the table unit 2 side is provided on the base unit 3 side. The configuration is the same as in Example 1.

The connecting order of the wires W will be described with reference to FIG. 2. The linkage unit 6 is a pulley in which the wire W having one end fixed to the wire fixing unit 66 near the upper end of the first support column 31 in the base unit is provided on the table unit 2. The first direction change pulley 61 and the second direction change pulley 62 are provided in this order, and a third direction change pulley 63 is provided in the vicinity of the upper end on the base portion 3 side. The other end W2 of the wire W is connected to the fixing mechanism portion 4 (see FIG. 8) of the base portion 3.
Accordingly, one end W1 of one wire W is fixed to the wire fixing portion 66 near the upper end of the base portion 3, and then this wire is changed in the first direction at the pulley on the table portion 2 side in the second support column 21. While spanning the pulley 61 and the second direction change pulley 62 in this order, the wire other end W2 is connected to the fixing mechanism portion 4 of the base portion 2.
Therefore, when the table portion 2 in FIG. 2A is lowered to the state in which the table portion 2 in FIG. 2B is raised, the wire fixing portion 66 in the first support column 31 in FIG. The distance between the first direction change pulley 61 and the first direction change pulley 61 is increased by x2. However, as shown in FIG. 2B, the distance between the second direction change pulley 62 and the third direction change pulley 63 is decreased by y2. As a result, the path length between the wire fixing portion 66 and the pendulum pulley 414 is unchanged unless the operation portion 5 is operated.
More specifically, the distance x2 (a) between the wire fixing portion 66 and the first direction change pulley 61 in the first support column 31 of FIG. 2 (a) extends to x2 (b) in FIG. On the other hand, the distance y2 (a) between the second direction change pulley 62 and the third direction change pulley 63 in FIG. 2A is reduced to y2 (b) in FIG. As a result, the path length is unchanged as described above.

Next, the relationship between the operation unit 5, the wire W, and the fixing mechanism unit 4 common to the first and second embodiments will be described.
The operation portion 5 of the wire W is as shown in FIGS. 3 to 5, and FIGS. 3 and 4 lower the lever 52 that rotates about the rotation shaft 51 of the operation portion 5 to lower the fixing mechanism portion 4. The fixing mechanism unit is a mechanism that locks the caster 411 or the stopper 421 descends to the floor and fixes it to the floor. In this case, the wire W is always pulled toward the fixing mechanism 4 by a spring or the like, so that the lever 52 is kept lowered in a normal state, as shown in FIG. The pulley holder 53 is vertically supported by the lever central concave portion 521 of the lever 52, but the second direction change pulley 62 itself pivotally supported by the pulley holder 53 is also in the lowered position, and therefore, the side The table (elevating table) 1 is also locked when the fixing mechanism 4 is operated, and is always fixed at normal times.
FIG. 5 shows a case where the side table is moved, the lever 52 is raised, the second direction change pulley 62 itself is pulled upward as shown, and the wire W is pulled to connect to the fixing mechanism unit 4. The other end 42 is pulled. Note that reference numeral 11 in FIGS. 4 to 5 and 15 is a lifting lever for lifting the table.

Here, the fixing mechanism portion 4 will be described. As shown in FIG. 6, the fixing mechanism portion 4 is provided with a pair of opposing leg portions 33 and 34 on the bottom surface portion 32 of the base portion 3, and these opposing portions. A hanging leg 35 is provided over which the leg portion 33.34 is stretched, and has an H shape on the bottom as a whole. A total of four casters 411 are arranged at the tip portions of the respective leg portions 33 and 34, the first fixing mechanism portion 41 is opposed to the bottom surface portion 32 of the base portion 2 of the column portion 7, and the column portion 7 is opposed thereto. The slightly fixed leg portion 34 is provided with a second fixing mechanism portion 42.
As an example of the fixing mechanism portion 4, the first fixing mechanism portion 41 will be described. As an example of the fixing mechanism portion 4, as shown in FIGS. 6 to 9, the first fixing mechanism portion 4 is provided on the bottom surface portion 32 of the base portion 3 of the support column portion 7. The caster lock mechanism 41 of the 1 fixing mechanism part 4A will be described.
As shown in FIG. 7, a pivot rod 412 is provided on the leg 33, a concave portion 413 is provided at the center of the pivot rod 412, and a pendulum pulley 414 that performs a pendulum motion is pivoted in the concave portion 413. It is supported freely. As shown in FIGS. 7 and 8, both ends of the rotating rod 412 are provided with an operating portion 415 bent at a right angle.
1 and 2, when the operation unit 5 is operated by the cooperation unit 6, the wire W is pulled, and as shown in FIGS. 7 and 8, the pendulum pulley 414 is rotated and the wire W is further pulled. . Here, the pendulum pulley 414 is rotated like a pendulum motion, and the operating end 415 is also rotated so as to press the upper end of the slide bar 4115.

The operation end 415 operates to lock and unlock the caster 411. This operation will be described with reference to FIGS.
The structure of the caster 411 itself is a known one, and the solid line portion in FIG. 8 is in a locked state, and FIG. 9 is a state in which a normal caster 411 is locked, but the structure of the caster 411 is located inside the caster wheel 4111. An internal gear 4112 is provided, and the fitting tooth 4113 is normally fitted by the spring 4114 to keep the caster 411 locked. The fitting tooth 4113 is moved approximately vertically by an inverted U-shaped frame 4114, one end is connected to the fitting tooth 4113 and the other end is in contact with the lower end of the slide bar 4115. The slide bar 4115 slides up and down, but the lower end is pushed upward by the pressing spring 4116 and is in a state as shown in FIG. 9, and the upper end of the slide bar 4111 is rotated. The working end 415 of the bar 412 is in contact.
Next, the unlocking operation of the caster 411 will be described. When the dotted line portion in FIG. 8 is in the unlocked state, and the operating end portion 415 is lowered by the rotation of the pendulum pulley 414 as shown in FIG. The rod 411 also descends against the pushing force of the pressing spring 4116, lowers the U-shaped frame body 4114, lowers the fitting teeth 4113 provided at one end of the U-shaped frame body 4114, and as a result, the internal gear 4112. Then, the fitting teeth 4113 are removed, and the casters 411 are unlocked.

Next, the second fixing mechanism portion 42 of the fixing mechanism portion 4 will be described.
In the first and second embodiments, the second fixing mechanism portion 42 is provided on the slightly short leg portion 34 facing the column portion 7 in FIG. 6, and this is shown as a side view in FIG. FIG. 11A shows a fixed state in which the first fixing mechanism 41 and the second fixing mechanism 42 of the side table are fixed to the floor, and FIG. 11B shows the side table. It is an unlocked state that allows movement.
The second fixing mechanism portion 42 is a mechanism for grounding the stopper plate 421 and floating the caster wheel 4111 of the caster 411 from the floor, and will be described along FIG. 12 in the locked state and FIG. 13 in the unlocked state.
In FIG. 12, the rotating arm 422 is rotated counterclockwise in the figure around the rotating shaft 423, and the stopper plate 421 at the tip is in contact with the floor, and is usually a contracting spring that acts in the expansion / contraction direction. This grounding state is normally established by 424. In the vicinity of the tip of the rotating arm 422, one end of the link 425 is pivotally supported by a fulcrum 426 so as to be rotatable. The other end of the link 425 is provided with a moving pin 428 that moves along the elongated hole 427 of the fixed portion. The elongated hole 427 is slightly inclined but has a shape that is long in the horizontal direction. The engagement member 429 is fitted to the moving pin 428 that slides in the elongated hole 427, and the engagement member 429 has a wire. The last end W3 which is the end of W is locked.
Therefore, a link mechanism is formed which includes the point P1 (the pivot shaft 423 at the fixed position of the leg 34), the point P2 (the fulcrum 426 of the pivot arm 422), and the point P3 (the moving pin 428 which slides the long hole 427). (A triangle composed of a one-dot chain line and a contraction spring 424).
The above is the state where the stopper plate 421 is in contact with the floor and the side table (lifting table) 1 is fixed to the floor.

Next, a state in which the stopper plate 421 is separated from the floor from the state in which the stopper plate 421 is in contact with the floor will be described with reference to FIG.
In FIG. 5, when the lever 52 of the operation unit 5 is given, when the wire W is pulled, the engagement member 429 is pulled leftward in FIG. 13, so that the moving pin 428 sliding along the long hole 427 (point P2). ) Is pulled to the left against the expansion and contraction force of the contraction spring 424, and the pivot shaft 423 is a fixed position provided on the leg portion 34. Therefore, the fulcrum 426 of the pivot arm 422 is positioned upward as shown in FIG. And pivots upward (in the figure, counterclockwise) on the pivot shaft 422 provided with the fulcrum 426. As a result, the stopper plate 421 is retracted upward, the casters 411 descend to the floor, and the side table 1 It becomes possible to move.
In the present embodiment, the link mechanism as described above is suitable for incorporation into the leg portion 34 that is flat and has no height.

[Example 3]
A lifting table according to a third embodiment of the present invention will be described with reference to FIG. 14, but the third embodiment is different from the first and second embodiments, and the wire route diagram is a modification of the second embodiment as shown in FIG. 14. Thus, two pairs of auxiliary direction changing pulleys 611 and 612 are provided so that the moving direction of the operation unit 5 is horizontal or rotated, and other configurations are the same as those of the first and second embodiments.
In the wire path diagram of FIG. 14, the linkage unit 6 is mainly provided inside the column unit 7, but the table unit 2 is provided with the first direction change pulley 61 and the second direction change pulley 62, and the base unit side is provided with the first direction change pulley 61. A three-direction changing pulley 63 is provided, and auxiliary direction-changing pulleys 611 and 612 are provided on the wire W side of the first direction-changing pulley 61.
A single wire W is passed over these pulleys 61 to 63 and the fixing mechanism portion 4 is operated. However, the wire W does not act on the fixing mechanism portion 4 only by moving the table portion 2 up and down. The same.

First, the wire W, in which one end W1 of one wire W is fixed to the wire fixing portion 66 near the upper end of the first support column 31 on the base portion 3 side, is changed in the horizontal direction by the auxiliary direction changing pulley 611, and the first direction It is hung on the change pulley 61, changed in the downward direction by the auxiliary direction change pulley 612, and hung on the second direction change pulley 62 on the table portion 2 side, and then the first in the first support column 31 on the base portion 3 side. The other end W <b> 2 of the wire is connected from the three-direction changing pulley 63 to the fixing mechanism 4 of the base 2.
Therefore, when the table portion 2 in FIG. 14 (a) is lowered to the state in which the table portion 2 in FIG. 14 (b) is raised, the third direction change pulley 63 and the second support column 21 of FIG. Although the distance between the two-direction change pulley 62 is reduced by x3, as shown in FIG. 14B, the distance between the wire fixing portion 66 on the base portion 3 side and the auxiliary direction change pulley 611 on the table portion 2 side. Expands by y3 and absorbs the reduced portion (x3 = y3). As a result, unless the operation unit 5 is operated, the wire fixing unit 66 and the pendulum pulley 414 of the fixing mechanism unit 4 on the base unit 3 side The distance of is unchanged

Next, since the configuration of the operation unit 5 is a configuration for horizontally or rotating the first direction change pulley 61, it is different from the first and second embodiments, and will be described with reference to FIGS.
As illustrated in FIGS. 15 and 16, the operation unit 5 of the wire W according to the third embodiment lowers the lever 57 that rotates about the rotation shaft 56 in the operation unit 5 and operates the fixing mechanism unit 4. Secure to the floor. The fixing mechanism 4 is a mechanism that locks the caster 411 or the stopper 421 descends to the floor and fixes it to the floor. In this case, since the wire W is always pulled to the fixing mechanism portion 4 side by a spring or the like, in a normal state, the lever 57 is kept in a lowered state, and the side table (lifting table) 1 Is always fixed to the floor.
FIG. 17 shows a case where the side table is moved, and the lever 57 is used to link the first direction change pulley 61 itself to the rotation shaft 56 and the rotation arm 58 of the first direction change pulley 61. Thus, the wire W is pulled and the other end W2 connected to the fixing mechanism unit 4 is pulled by increasing the winding amount around the first direction change pulley 61.
In the operation mechanism of the third embodiment, since the first direction change pulley 61 which is also the operation unit basically moves in the horizontal direction, the entire operation mechanism is flat and the movement amount of the wire W can be increased.

Since the first, second, and third embodiments of the present invention are configured as described above, the side table (elevating table) 1 is a book wire W and the base portion 2 is operated by the operation portion 5 provided on the table portion 2. The fixing mechanism 4 can be operated. Therefore, it can be made much cheaper than using the conventional coaxial wire, and the parts can be made common and can be made compact.
The first fixing mechanism unit 41 can use a conventional caster lock / release mechanism, can reliably fix the lifting table to a predetermined floor surface, and the second fixing mechanism unit 42 floats the wheels of the casters 411. Since the stopper plate 421 is a mechanism in which the stopper plate is grounded, it is not necessary to use an expensive caster lock / release mechanism and can be manufactured at low cost.
Moreover, since only one wire is operated, the effect that the force which operates an operation lever becomes light rather than a coaxial wire is also show | played.
Although the first fixing mechanism portion 41 is provided with a conventional caster lock / release mechanism, the second fixing mechanism portion 42 may be a mechanism in which the wheel of the caster 411 is lifted and the stopper plate 421 stopper plate is grounded. The second fixing mechanism section may be a lock / unlock mechanism of the caster itself of the first fixing mechanism section.
In this embodiment, the lifting table is described as a side table, but it may be used for another lifting table, for example, an overbed table.
Needless to say, the present invention is not limited to the above-described embodiments as long as the features of the present invention are not impaired.

W ・ ・ Wire, W1 ・ ・ One end, W2 ・ ・ Other end, W3 ・ ・ Terminal (final end)
DESCRIPTION OF SYMBOLS 1 ... Side table (elevating table), 11, Elevating lever 2 ... Table part, 21 ... 2nd support | pillar,
3 ... Base part, 31 ... 1st support | pillar, 32 ... Bottom part,
33, 34 .. Leg part, 35 .. Hanging leg 4... Fixing mechanism part, 41 .. First fixing mechanism part,
411 · Caster, 4111 ·· Caster wheel, 4112 ·· Internal gear,
4113 ... Fitting tooth, 4114 ... U-shaped frame, 4115 ... Slide bar,
4116 ..Pressing spring,
412 ··· Rotating rod, 413 ·· Recessed portion, 414 · · Pendulum pulley,
415 .. Working end,
42 ··· Second fixing mechanism portion, 421 ··· Stopper plate, 422 ··· Rotating arm,
423 ·· Rotating shaft, 424 ··· Contraction spring, 425 · · Link, 426 · · Support point 4,
427 ... Long hole, 428 ... Moving pin, 429 ... Constraining member 5 ... Operation part,
51 .. Rotating shaft, 52... Lever, 521 .. Lever central concave part,
53 .. Pulley holder,
56 .. Rotating shaft, 57... Lever, 58 .. Rotating arm,
59. Link mechanism,
6 ... cooperation part, 61 ... 1st direction change pulley,
611 .. Auxiliary direction change pulley, 612 .. Auxiliary direction change pulley,
62 ... 2nd direction change pulley, 63 ... 3rd direction change pulley 66 ... wire fixing part,
7 ... Prop

Claims (5)

In a lifting table having a table part that moves up and down and a base part that has a caster and is movable,
The base portion is provided with a fixing mechanism portion that is fixed to the floor, an operation portion that operates the fixing mechanism portion is provided on the table portion, and a linkage portion that links the fixing mechanism portion and the operation portion is provided.
A first support column fixed to the base portion side and a second support column movable to the table portion side that moves up and down are provided. The first support column and the second support column are fitted to each other and slid to have a length. Provide variable struts,
The linkage unit is configured to hang a wire having one end fixed to a wire fixing unit in the vicinity of the upper end of the first support column in the order of a first direction change pulley and a second direction change pulley respectively provided on the table unit. The other end of the base is connected to the fixing mechanism portion of the base portion,
An elevating table fixing device characterized in that one of the first direction change pulley and the second direction change pulley is used as the operation unit with a variable position.   2. The lifting table fixing device according to claim 1, wherein the first direction changing pulley is located below the wire fixing portion, and the second direction changing pulley is the operation portion whose position is variable.   2. The lifting table fixing device according to claim 1, wherein the first direction changing pulley is located above the wire fixing portion, and the first direction changing pulley is the operation portion whose position is variable.   4. The lifting table fixing device selected from claim 1, wherein the fixing mechanism is a mechanism for locking / unlocking a wheel of a caster.   4. The lifting table fixing device selected from claim 1, wherein the fixing mechanism grounds a stopper plate and floats a caster wheel of a caster from the floor. 5.

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