JP4164706B1 - Operating device - Google Patents

Abstract

An operation load of a moving device capable of effectively utilizing a work space on a desk is stabilized.
A mounting unit on which a personal computer (notebook type) is mounted, a use position for using the personal computer on which the mounting unit is mounted, and the use position are different. The moving part 12 which moves to arbitrary unused positions, and the fixing device 14 which fixes the moving part 12 to the desk 16 so that attachment or detachment is possible are provided. The position of the mounting portion 18 is determined by the length of the expansion / contraction mechanism 5. The positioning operation for determining the length of the telescopic mechanism 5 is performed by the operation device 4 that transmits the operation displacement amount of the operation unit 4A to the action unit by hydraulic pressure. Since the operation amount is transmitted by hydraulic pressure, the operation load is stabilized.
[Selection] Figure 1

Description

  The present invention relates to an operation device, and more particularly, to an operation device in which a relative position between an operation unit and an operation target unit changes.

  In general, an office worker works by placing a personal computer (personal computer) on a desk. For example, if the personal computer is a desktop type, at least the display and keyboard, and in some cases, the computer main body can be placed on the desk. If the personal computer is a notebook type, all the components of the personal computer are placed on the desk.

  However, office workers do not always use personal computers when working. For example, reading a document or taking notes during a phone call does not necessarily mean that you do not use your computer during work. Therefore, even when the personal computer is not used in this way, if the personal computer is left on the desk, the work space on the desk is reduced by the personal computer.

In order to solve such a problem, an elevating device for placing a personal computer on a tray and moving the tray up and down has been proposed. In this apparatus, when using a personal computer, the tray is lowered and when not in use, the tray is raised to secure a work space on the desk.
JP 2000-135123 A

  Some such lifting devices use a telescopic mechanism constituted by a cylinder and a piston. In such an expansion / contraction mechanism, the length of the entire expansion / contraction mechanism changes as the piston moves in the cylinder, and the total length of the expansion / contraction mechanism is defined by the position of the piston. Further, the inside of the cylinder divided into two by the piston is communicated by a communication passage communicating with the front and back surfaces of the piston, and the fluid in the cylinder moves through the communication passage as the piston moves. A valve that is opened and closed is provided in the communication path. By closing the valve, the movement of the piston is fixed, and the entire length of the telescopic mechanism is fixed.

  The valve is operated by an operation button protruding from the tip of the piston rod. When the button is pressed, the valve opens and the piston can be moved. When the button returns, the valve closes and the position of the piston is fixed. Structure.

  2. Description of the Related Art Conventionally, an operation device for operating a button has an operation unit including a lever, a transmission mechanism that transmits an operation amount of the operation unit to the button, and an action unit that causes the operation amount of the operation unit to act on the button. is doing. Since the operation part is disposed below the tray and the action part is provided at the tip of the piston rod, when the tray of the lifting device is moved up and down, the relative position of the operation part and the action part changes.

  A conventional transmission mechanism is a mechanism composed of an inner wire and an outer wire, and is configured to transmit an operation amount by operating an inner wire accommodated inside the outer wire in the axial direction. In addition, the inner wire and the outer wire are flexible, and are configured such that their shapes can be changed according to changes in the relative positions of the operation portion and the action portion.

  However, these wires are linear in a normal shape, and when the wire is bent according to the position of the tray of the lifting device, a restoring force for restoring the original shape is generated. Since this restoring force acts on the lifting device to which the wire is attached, there is a problem that the lifting operation of the tray is made heavy or light.

  In addition, when the wire is bent, friction is generated between the inner wire and the outer wire, and the frictional force changes according to the amount of bending of the wire, so that the operation load of the operation part (necessary for the operator to operate the operation part) There was also a problem that the stable force (load) was not stable.

  The present invention has been made in view of the above-described facts, and an object of the present invention is to propose a moving device capable of effectively utilizing a work space on a desk and having a stable operation load.

  Such an object is achieved by the present invention described below.

( 1 ) the base,
A placement unit having a placement surface for placing a non-placed object;
A lifting and lowering swinging member having a base end portion swingably connected to the base and a tip end portion swingably connected to the mounting portion;
A telescopic mechanism erected between the elevating swing member and the base;
Switching means for switching the expansion / contraction position of the expansion / contraction mechanism between a fixed state and a fixed release state;
An operating device attached to a moving device in which a triangular link mechanism is configured by the up-and-down swing member, the base, and the expansion and contraction means,
Pressurizing operation means for applying pressure to the liquid pressure transmission medium by displacement of the operation member by external operation;
An action means for outputting the pressure applied by the pressurizing operation means as an operation pressure for the switching operation of the switching means;
A conducting pipe made of a flexible thermoplastic resin that guides the liquid pressure transmission medium from the pressurizing operation means to the action means;
The pressurizing operation means has an operation side piston that moves forward and backward by displacement of the operation member, and an operation side cylinder filled with a liquid pressure transmission medium,
The action means is integrated with the action side piston to which the pressure sent from the pressurizing operation means is applied, the action side piston, the action side cylinder filled with the liquid pressure transmission medium, and the action side piston. And a working member that advances and retreats,
The switching means opens and closes a flow passage communicating with a space in the cylinder divided into two by the piston in an expansion / contraction mechanism having a cylinder filled with fluid and a piston reciprocally accommodated in the cylinder. Opening and closing means,
The operating device according to claim 1, wherein the opening / closing means performs an opening / closing operation when an amount of movement of the action side piston of the action means exceeds a predetermined value.

  According to the first aspect of the present invention, the mounting portion can be moved up and down by swinging the lifting / lowering swinging member in the unlocked state of the expansion / contraction means. By moving the mounting portion, the angle formed by the mounting portion and the lifting / lowering swing member changes, and the relative position between the pressurizing operation means on the mounting portion side and the action means on the lifting / lowering swinging member side changes. To do. Even if such a change in the relative position occurs, the pressure transmission medium is guided through the flexible conducting tube, so that the bending of the conducting tube does not become an obstacle to the raising / lowering operation of the mounting portion, and the operation load is also reduced. It is kept stable. Since the conducting pipe is made of thermoplastic resin, when the pressure transmission medium expands due to temperature rise, the conducting pipe itself becomes soft, and the volume of the expanded pressure transmission medium expands. Thus, it can be absorbed. Thereby, it can suppress that malfunctioning arises by the pressure rise to the action means by the thermal expansion of a pressure transmission medium.

Since the displacement of the operation member is transmitted to the action means via the pressure transmission medium by moving the piston by the operation member, the displacement amount on the operation side can be accurately transmitted to the action portion side. Furthermore, since the operating side displacement amount transmitted via the pressure transmission medium is converted into the operating displacement by the operating side piston, the operating side displacement amount can be accurately acted as the operating side displacement.
By configuring the expansion / contraction mechanism with a cylinder and a piston, the length of the expansion / contraction mechanism can be adjusted to an arbitrary length. Moreover, the length can be arbitrarily fixed at a position by using the opening / closing means for opening / closing the flow passage through which the piston is inserted as the lock mechanism. Further, by using oil as the pressure transmission medium, the operation displacement on the pressurizing operation means side is transmitted to the action means side successively and accurately, so that the opening / closing operation of the opening / closing means can be performed with high accuracy.

  Since the opening / closing operation is executed when the moving amount of the working piston exceeds a predetermined value, the opening / closing operation can be accurately operated. In addition, since the conducting pipe is made of a thermoplastic resin, when the volume of the pressure transmission medium increases due to thermal expansion, the conducting pipe can be softened as the temperature rises and swell with the expansion of the pressure transmission medium. It is possible to suppress the occurrence of malfunction due to the movement of the working piston due to the volume increase.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
As shown in FIG. 1, the moving apparatus 1 of the present embodiment has a placement unit 18 (see also FIG. 2) on which a personal computer (notebook type) is placed and a placement unit 18. A moving part 12 that moves to a use position for using the personal computer and an arbitrary non-use position different from the use position, and a fixing device as a fixing means for detachably fixing the moving part 12 to the desk 16 14.

The fixing device 14 includes a contact portion 14C having a U-shaped cross section, an upper surface on the lower surface of the base portion 20 of the moving unit 12, and an upper inner surface on the desk surface. The contact portion 14C is fixed to the desk 16 by the tip portion 14B coming into contact with the back side surface of the desk by the screw 14A. As a result, the moving section 12 is fixed to the desk 16.
As shown in FIG. 2, the moving unit 12 includes a base 20, a support column 22 that is rotatably attached to the base 20 via a link 26, and a support unit 22 that is rotatable via a link 28. And a support portion 24 that is attached and supports the placement portion 18.

As shown in FIG. 2, the column portion 22 as an up and down swing member includes two column members 22 </ b> A and 22 </ b> B. The two support members 22A and 22B are attached to the base 20 and the support 24, which are bases, so as to be maintained at a predetermined interval.
A link 25 is provided at a position moved from the center position of the two support members 22A and 22B to the support portion 24 side. An action part 4C of the operating device 4 described later is attached to the link 25 so as to be rotatable. The tip of the piston rod 52 of the telescopic mechanism 5 is connected to the action part 4C. The telescopic mechanism 5 includes a main body 51 having a cylinder and a piston accommodated in the cylinder. A piston rod 52 is connected to the piston, and the piston moves to move inside the cylinder. The total length constituted by the piston rod 52 is configured to expand and contract.

In the telescopic mechanism 5, the end opposite to the side from which the piston rod 52 projects is fixed to a support base 30 fixed to the base 20 so as to be rotatable.
The expansion / contraction mechanism 5 is a known mechanism, and the cylinder is filled with oil. The cylinder is divided into two oil chambers by a piston, and the piston is provided with a passage communicating the two oil chambers. As the piston moves in the cylinder, the oil in both oil chambers flows through a passage formed in the piston. A lock valve that switches between a closed state that blocks the flow of oil and an open state that allows the flow of oil is provided in the passage. When the lock valve is in the closed state, the oil flow between the oil chambers is interrupted, so that the piston cannot move in the cylinder, and the total length of the telescopic mechanism 5 cannot be changed and is locked.

The lock valve switching operation is performed on an operation button 53 (see FIG. 5) protruding from the tip of the piston rod 52. When the operation button 53 is pushed in, the lock valve is released and the length of the telescopic mechanism 5 can be changed. In the state where the operation button 53 protrudes (the state shown in FIG. 5), the lock valve is closed, and the length of the telescopic mechanism 5 cannot be changed. A spring is accommodated in the cylinder, and pressure is constantly applied in the direction in which the piston rod 52 is pushed out. The operation button 53 is always urged in the protruding direction, and the locked state is the standby position. Alternatively, the lock valve may be released when the pressing amount of the operation button 53 reaches a predetermined value. In this case, the closed state and the open state switching position are clarified, and the extension / contraction mechanism 5 can be easily locked and released.
The placement unit 18 is fixed to the support unit 24. A personal computer or the like is placed on the placement unit 18. A flange 181 is formed on the short side on the front side of the placement portion 18 so that the placed personal computer or the like does not fall due to the inclination of the placement portion 18.

  As shown in FIGS. 1 and 3, an upper protrusion 34 is provided at the base end portion of the support portion 24 provided with the link 28, and a lower portion of the base portion 20 is attached to the portion attached to the link 26. Each of the protrusions 36 is formed, and a connecting rod 38 is provided between the upper protrusion 34 and the lower protrusion 36. Both ends of the connecting rod 38 are rotatably connected to the upper protrusion 34 and the lower protrusion 36. When the support member 22 is swung up and down by the connecting rod 38, the mounting portion 18 is configured to maintain an inclination angle within a predetermined range.

Next, the operation device 4 for releasing the lock of the telescopic mechanism 5 will be described. FIG. 3 is an overall view of the controller device 4. The operating device 4 includes an operating unit 4A as a pressurizing operating unit, an operating unit 4C as an operating unit, and a connecting pipe as a conduction path for guiding oil as a pressure transmission medium between the operating unit 4A and the operating unit 4C. 4B.
As shown in FIG. 4, the operation unit 4 </ b> A is provided for the user to perform an operation of releasing the lock of the telescopic mechanism 5. 4 A of operation parts are fixed to the lower surface of the mounting part 18, and are provided in the position close | similar to the edge of the mounting part 18 so that it can cancel simultaneously when raising / lowering the mounting part 18. FIG. .

FIG. 5 is a cross-sectional view of the operating device 4. The operation portion 4A includes an operation portion main body 41A, an attachment portion 46A for fixing the operation portion main body 41A to the placement portion 18, an operation member 47A, and a piston 44A having a piston rod 45A.
The operation portion main body 41A and the attachment portion 46A are integrally formed. A cylinder 43A is formed in the operation portion main body 41A, and a piston 44A is accommodated in the cylinder 43A. The cylinder 43A is closed by the lid body 42A. The piston rod 45A connected to the piston 44A protrudes outside the operation portion main body 41A, and the tip thereof is in contact with the operation member 47A. In addition, a conduction pipe 42B is connected to the operation part main body 41A via a connection part 41B, and the connection pipe 4B and the cylinder 43A communicate with each other via a communication path 431A.

  A base end portion of the operation member 47A is swingably supported by the mounting portion 46A by a support pin 48. A finger hook portion 471A that is curved outward is provided at the distal end of the operation member 47A, and the finger hook portion 471A is exposed to the outside from the edge of the placement portion 18 (see FIG. 4). The tip of the piston rod 45A is in contact with the finger hook portion 471A, and the operation member 47A is swung by pushing the finger hook portion 471A and pulling the finger, and the piston rod 45A is pushed in. A spring 451A is externally mounted on the piston rod 45A and urges the piston rod 45A in a pulling-out direction. This is for returning the piston rod 45A after the release operation.

  FIG. 6 is a perspective view showing an attachment state of the action portion 4C. The action part 4C includes an action part main body 41C, a connection part 42C for connecting and fixing the tip of the piston rod 52 of the telescopic mechanism 5, and a piston 44C. A cylinder 43C is formed in the action part main body 41C, and a piston 44C is accommodated in the cylinder 43C. Further, the operation button 53 of the piston rod 52 connected via the connecting portion 42C is inserted into the cylinder 43C and is in contact with the surface on one side of the piston 44C. On the opposite surface of the piston 44C, an oil chamber filled with oil is formed by the cylinder 43C and the piston 44C (FIG. 5 shows a state where the oil is pushed out).

  A communication passage 45C is connected to the cylinder 43C, and a conduction pipe 42B connected via a connection portion 43B is connected to the communication passage 45C. The conducting tube 42B is a tubular body made of a flexible material, and is made of a thermoplastic resin. By configuring the conducting tube 42B with a soft material, resistance to deformation can be reduced, and generation of extra resistance can be suppressed when the mounting portion 18 is raised and lowered. The cylinder 43A on the operation unit 4A side, the cylinder 43C on the operation unit 4C side, and the conduction pipe 42B are filled with oil as a pressure transmission medium.

  When oil that is a pressure transmission medium thermally expands for some reason such as an increase in ambient temperature, the piston 44C may be pushed by an increase in the volume of the oil, and the operation button 53 may be pushed by natural movement of the piston 44C. In that case, the lock valve of the expansion / contraction mechanism 5 is in a half-open state and the length of the expansion / contraction mechanism 5 changes, or the interval from when the operation pressure is applied to the operation unit 4A to when it is activated. May shorten the sense of operation. However, since the conducting tube 42B is made of a thermoplastic resin, the temperature of the conducting tube 42B itself increases with oil, and the conducting tube 42B is softened. As a result, the deformable amount of the conducting pipe 42B itself increases, and the conducting pipe 42B also swells due to the expansion of the internal oil. Due to the swelling of the conducting tube 42B, the volume increase due to the thermal expansion of the oil can be absorbed, the natural movement of the piston 44C due to the volume increase can be suppressed, and the occurrence of malfunction can be prevented. In particular, as the volume of the pressure transmission medium increases with respect to the pressure receiving area of the piston 44C on the working side, the above effect is effectively exhibited. That is, as the volume of the pressure transmission medium increases, the amount that increases due to volume expansion increases, and the amount of movement of the piston 44C increases accordingly. Note that the softening of the conducting tube 42B due to the temperature rise progresses slowly along with the temperature rise, so there is no effect on the pressure transmission performance when the operation pressure on the operation unit 4A side is transmitted to the action unit 4C side.

  The operation of the operating device 4 configured as described above will be described. When a finger is hooked on the finger hook portion 471A and pulled forward, the operation member 47A pushes the piston rod 45A. As a result, the piston 44A on the operation unit 4A side is pushed by the piston rod 45A, and oil is pushed out from the cylinder 43A. The pushed oil flows into the cylinder 43C on the action part 4C side through the conducting pipe 42B, pushes out the piston 44C, and pushes the operation button 53. Thereby, the lock | rock of the expansion-contraction mechanism 5 is cancelled | released and it becomes possible to move the mounting part 18 up and down. The unlocked state is maintained by maintaining a state where the operation button 53 is always pushed.

  As shown in FIG. 1, the placement unit 18 is lowered to the top of the desk (use position (A)), is raised to the top (top position (B)), and is in the middle position. In the fixed state (intermediate position (C)), the amount of bending of the conducting tube 42B is different. In the configuration in which the operation displacement is transmitted by the wire, the operation pressure changes due to the difference in the deflection amount, and is not stable. This is considered to be because the contact pressure between the inner wire and the outer wire changes by bending the wire, and that the restoring force with respect to the bending of each wire differs depending on the bending state of the wire.

  In the present invention, since the medium for transmitting the operation pressure is liquid, the operation pressure (the force necessary to pull the operation member) is applied to the position of the mounting portion 18 without being affected by the deflection amount of the conducting tube 42B. It is possible to stabilize without being affected by. The operating device 4 of the present invention is not limited to the case of being used in the moving device 1 described above, but can be used in a mechanism in which the relative position of the operating unit and the action unit changes. Moreover, although the said structure mentioned and demonstrated the case where it was used for the unlocking operation of the expansion-contraction mechanism 5, another mechanism may be sufficient if it is a mechanism of the structure which displaces an operation part.

  FIG. 7 is an overall side view of the moving device 1 having a leg base, and FIG. 8 is an overall plan view of the same. The base 20 of the moving device 1 having the operation device 4 includes a leg base 15. The pedestal 15 includes a support 152, a pedestal 151 provided at the upper end of the support 152, a leg connection 153 provided at the lower end of the support 152, and a radial extension extending downward from the leg connection 153. The plurality of legs 154a to 154d and rollers 155a to 155d provided at the tips of the legs 154a to 154d are provided.

The base portion 20 is fixed to the pedestal portion 151. As described above, the moving device 1 includes the moving unit 12, the placing unit 18, and the telescopic mechanism 5. An operation unit 4A of the operation device 4 is provided below the placement unit 18, and a conduction tube 42B is provided between the operation unit 4A and the action unit 4C of the expansion / contraction mechanism 5.
The moving device 1 is configured such that the tips of the two legs 154 a and 154 b are located outside the placement portion 18 in a state where the placement portion 18 is in the use position (the lowest position).
The mobile device 1 configured as described above is not attached to a desk or table, but a user sitting on a chair or sofa or a user sitting on a bed draws the placement unit 18, It can be used directly.

FIG. 9 shows another configuration example of the conducting tube 42B. FIG. 9 shows a configuration example in which the conducting tube 42B is configured in a spiral shape in the operating device 1 shown in FIG. 1, and the configuration is the same except for the conducting tube 42BA. Therefore, the configuration of the conducting tube 42BA will be described, and the other components will be denoted by the same reference numerals as those in FIG. 1 and description thereof will be omitted.
The conducting tube 42BA is formed in a spiral shape. For this reason, the amount by which the conducting tube 42BA is extended can be increased, and the range in which the relative position between the operation unit 4A and the action unit 4C can be changed can be further expanded.

It is a side view of the moving device using an operating device. It is a top view of the moving device using an operating device. It is a general view of an operating device. It is a perspective top view of the moving device mounting part provided with the operating device. It is sectional drawing of an operating device. It is a whole perspective view of an operating device action part. It is a side view which shows the other structural example of an operating device. It is a top view which shows the other structural example of an operating device. It is a side view of the moving apparatus using the operating device of other composition.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Movement apparatus 4 Operation apparatus 4A Operation part 4C Action part 18 Mounting part 12 Movement part 14 Fixing device 42B Conduction pipe 5 Telescopic mechanism

Claims (1)

The base,
A placement unit having a placement surface for placing a non-placed object;
A lifting and lowering swinging member having a base end portion swingably connected to the base and a tip end portion swingably connected to the mounting portion;
A telescopic mechanism erected between the elevating swing member and the base;
Switching means for switching the expansion / contraction position of the expansion / contraction mechanism between a fixed state and a fixed release state;
An operating device attached to a moving device in which a triangular link mechanism is configured by the up-and-down swing member, the base, and the expansion and contraction means,
Pressurizing operation means for applying pressure to the liquid pressure transmission medium by displacement of the operation member by external operation;
An action means for outputting the pressure applied by the pressurizing operation means as an operation pressure for the switching operation of the switching means;
A conducting pipe made of a flexible thermoplastic resin that guides the liquid pressure transmission medium from the pressurizing operation means to the action means;
The pressurizing operation means has an operation side piston that moves forward and backward by displacement of the operation member, and an operation side cylinder filled with a liquid pressure transmission medium,
The action means is integrated with the action side piston to which the pressure sent from the pressurizing operation means is applied, the action side piston, the action side cylinder filled with the liquid pressure transmission medium, and the action side piston. And a working member that advances and retreats,
The switching means opens and closes a flow passage communicating with a space in the cylinder divided into two by the piston in an expansion / contraction mechanism having a cylinder filled with fluid and a piston reciprocally accommodated in the cylinder. Opening and closing means,
The operating device according to claim 1, wherein the opening / closing means performs an opening / closing operation when an amount of movement of the action side piston of the action means exceeds a predetermined value.

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