JP2010184003A - Examination table also used as electric stretcher for pet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enlarge height difference setting of a pet table and to accurately and smoothly make fine adjustment of the height position of the pet table within the height differences. <P>SOLUTION: The pet table 1 is laid on a movable table 10 through a folding lift mechanism 20. The folding lift mechanism 20 has a pantograph mechanism 21 and a damper type expansion mechanism 31 as main members. The pantograph mechanism 21 includes a pair of X-shaped legs 23 and 23 turnably pivoted at a substantially central cross part. The upper ends of both X-shaped legs are turnably pivoted to the pet table 1 side, and the lower ends of both X-shaped legs are turnably pivoted to the movable table 10 side. The damper type expansion mechanism 31 includes a piston rod 31b and a cylinder 31a, and the cylinder 31a side includes an electric actuator 36 with a motor M for extending and retracting the piston rod 31b. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electric stretcher and examination table for pets, which is used as a pet conveyance table in an animal hospital and further used as an examination table and an operating table, and the height position of the pet table can be adjusted.

  Conventionally, there is a technique of a pet stretcher that was previously filed by the present applicant. In other words, this pet stretcher is constructed by placing a pet table on a movable table via a folding lift mechanism that has a pantograph mechanism and a damper as main components. A lever is provided, and the height position of the pet table can be adjusted easily and safely by manual operation of the operation lever.

Japanese Patent Application No. 2003-205486

  However, in the prior art, since the height position of the pet table is determined via the damper by manual operation of the operation lever, it is very difficult to finely adjust the height within the position adjustment range by the damper. .

  Therefore, the present invention has been devised in view of the existing circumstances as described above, and it is possible to set the height difference of the pet table that was impossible with the conventional folding lifting mechanism, and as much as possible. The purpose is to provide an electric stretcher and examination table for pets that can be set large and finely adjust the height position of the pet table between the height differences accurately and smoothly. To do.

In the present invention, it is an electric stretcher and examination table for pets that is constructed by folding a pet table on a movable table via an elevating mechanism,
The movable table has a moving caster attached to the lower surface,
The folding elevating mechanism has a pantograph mechanism and a damper-type expansion / contraction mechanism as main members, and the pantograph mechanism includes a pair of X legs pivotally supported at a substantially central intersection, and the upper ends of both X legs are The lower end of both X legs is pivotally supported on the movable table side, and is pivotally supported on the pet table side.
On the other hand, the damper-type expansion / contraction mechanism includes a piston rod pivotally supported on one X leg in the pantograph mechanism, and a cylinder in which the piston rod is inserted and disposed on the other X leg,
An electric actuator with a motor for extending and contracting the piston rod is provided on the cylinder side.

  The pet table is characterized in that a weight scale sensor is provided on the lower surface side and a weight display section is provided on a predetermined upper surface portion.

  The motor of the electric actuator can be turned ON / OFF by either a foot switch for pedal depression pressure operation or an operation button.

  According to the present invention, it is possible to set the height difference of the pet table, which is impossible with the conventional folding lifting mechanism, and to set it as large as possible. Moreover, the pet table between the height differences can be set. Fine adjustment of the height position can be performed accurately and smoothly.

That is, a pet electric stretcher and examination table constructed by folding a pet table on a movable table via an elevating mechanism,
The movable table has a moving caster attached to the lower surface,
The folding elevating mechanism has a pantograph mechanism and a damper-type expansion / contraction mechanism as main members, and the pantograph mechanism includes a pair of X legs pivotally supported at a substantially central intersection, and the upper ends of both X legs are The lower end of both X legs is pivotally supported on the movable table side, and is pivotally supported on the pet table side.
On the other hand, the damper-type expansion / contraction mechanism includes a piston rod pivotally supported on one X leg in the pantograph mechanism, and a cylinder in which the piston rod is inserted and disposed on the other X leg,
Since the cylinder side is provided with an electric actuator with a motor that expands and contracts the piston rod,
Since the X leg can be easily extended or folded by electric drive, fine adjustment of the height position of the pet table can be performed accurately and smoothly. In addition, the arrangement of the electric actuator enables a large setting of the height difference of the pet table, which is impossible with the conventional folding lifting mechanism, and enables fine adjustment at any height between the height differences.

  Since the pet table is provided with a weight sensor on the lower surface side and a weight display section at a predetermined portion on the upper surface, the weight value of the pet can be immediately recognized by the weight display section, and the pet can be examined smoothly.

  The motor of the electric actuator can be turned on and off by either the foot switch for pedal pressure operation or the operation button, so the height position of the pet table can be easily adjusted by stepping on the foot switch or pressing the operation button. Moreover, it can be adjusted safely.

It is a top view of the expansion state of the electric stretcher and examination table for pets which shows one form for carrying out the present invention. It is a front view of the extension state of the electric stretcher and examination table for pets. It is a side view of the extension state of the electric stretcher and examination table for pets. It is a side view of the folding state of the electric stretcher and examination table for pets. It is a front view of the folding state of the electric stretcher and examination table for pets. Similarly, it shows the configuration and operation of the weight sensor and the weight display unit, (a) is a block configuration diagram, (b) is a flowchart for explaining the operation.

  Hereinafter, an embodiment of an electric stretcher and examination table for pets according to the present invention will be described in detail with reference to the drawings.

  In the present invention, a reference numeral 1 shown in the figure is a pet table that is folded on a movable table 10 via a lifting / lowering mechanism 20.

  As shown in FIGS. 2 to 5, the movable base 10 is formed of a stainless steel square frame 10 a, and a caster (caster adjuster) 11 with a stopper for movement is attached to the lower surface thereof. When used as an examination table or operating table for the pet a, the stopper of the caster 11 prevents the pet table from inadvertently moving.

  The pet stand 1 is composed of a stainless steel flat plate portion 1a and a frame 1b projecting from the lower end of the four circumferences. And a pair of guide parts 3 and 3 are opposingly arranged in the back side (left side of FIG. 3) of the frame 1b. The guide portion 3 is formed by a pair of U-shaped frames 3a and 3a, and is fixed to the inside of the frame 1b so that the openings face each other.

  A pair of guide portions 12, 12 are arranged opposite to each other on the rear side (left side in FIG. 3) of the frame 10 a of the movable base 10. The guide portion 12 is also formed by a pair of U-shaped frames 12a and 12a, and directly below the corresponding U-shaped frames 3a and 3a of the pet stand 1 and inside the frame 10a so that the openings face each other. It is fixed.

  The folding elevating mechanism 20 includes a stainless steel pantograph mechanism 21 and one damper type expansion / contraction mechanism 31 as main members.

  The pantograph mechanism 21 includes a pair of X legs 23 and 23 that are pivotally supported by a shaft 22 at a substantially central intersection. One of the upper ends of the X legs 23 and 23 is pivotally supported by pins 24 on the inner surfaces in the vicinity of one side of both sides of the frame 1b of the pet table 1 respectively.

  Guide rollers 25, 25 are pivotally supported on the other of the upper ends of the X legs 23, 23, and the guides are arranged to face the other end (rear side) inner surfaces of both sides of the frame 1b of the pet table 1. Respectively engaged with U-shaped frames 3a and 3a provided as the portions 3 and 3 are rotatably movable.

  One of the lower ends of the X legs 23 and 23 is pivotally supported by a pin 26 so as to be rotatable directly below the shaft support portion of the movable table 10 in the pet table 1. Further, guide rollers 25, 25 are pivotally attached to the other end of the lower end, and are U-shaped provided as guide portions 12, 12 directly below the guide portions 3, 3 of the pet stand 1. The frame 12a is engaged with the frame 12a so as to be rotatable.

  On the other hand, the damper type expansion / contraction mechanism 31 is provided with a pair of support arms 32 at the center of a connecting square bar 33 spanned on the shaft support side (right side in FIG. 3) of the X legs 23 and 23 of the pantograph mechanism 21. The lower end of the piston rod 31b is pivotally supported at the distal ends of the pair of support arms 32 so as to be rotatable.

  A substantially inverted L-shaped support plate 35 is stretched horizontally on the substantially central side of the opposite X legs 23, 23, and the upper end of the cylinder 31 a is fixed to the center of the support plate 35.

  As shown in FIGS. 1 to 5, an electric actuator 36 with a motor M for extending and contracting the piston rod 31b is provided on the cylinder 31a side. A foot switch 37 for pedal depression operation is installed in the vicinity of the movable base 10. The foot switch 37 is provided with a switch 37a for operating the X legs 23, 23 in the folding direction and a switch 37b for extending the X legs 23, 23 on the left and right.

  By the stepping operation of the foot switch 37, the motor M of the electric actuator 36 is operated 0N, and the cylinder 31a is expanded and contracted while rotating the piston rod 31b at the tip of the support arm 32, whereby the X legs 23 and 23 are moved. Elongate or fold. Instead of the foot switch 37, the motor M of the electric actuator 36 may be turned ON / OFF by an operation button provided on the pet table 1, a wired or wireless operation button, or the like (not shown).

Further, a battery (not shown) may be detachably mounted on the movable table 10 or the like. By using this battery as a power source, the motor M can be operated even in a place without an outlet or the like.
Note that the configuration of the electric actuator 36 described above does not limit the present invention in any way, and it is needless to say that other various configurations of the electric actuator 36 may be adopted.

  As shown in FIGS. 1, 3, and 4, a weight scale sensor 51 is provided on the lower surface side of the pet table 1. Further, a liquid crystal display panel or the like is provided at a predetermined position on the upper surface of the pet table 1, for example. A weight display unit 52 is provided. The scale sensor 51 is turned ON / OFF by a switch 53. Note that the switch 53 can be automatically turned on by simply placing the pet a on the pet table 1.

  Specifically, as shown in FIG. 6A, the pet table 1 is supported by an electronic weighing scale (load cell) 54 of the scale sensor 51. The electronic weighing scale 54 measures the weight of the pet a by weighing the entire pet table 1 on which the pet a is placed and then subtracting the weight of the pet table 1 other than the pet a from the measured value. It has become.

  That is, the electronic weighing scale 54 is connected to the motor M of the electric actuator 36 via the control mechanism 55. Accordingly, the rotation of the motor M is controlled by the control mechanism 55 that has received a signal from the electronic weighing scale 54. The control mechanism 55 includes a weighing controller 56 and a rotation speed controller 57 of the motor M.

  As shown in the flowchart of FIG. 6B, at the same time when the pet a is placed on the pet table 1, the weighing controller 56 receives a signal from the electronic weighing scale 54 and sends the control signal to the rotation speed controller 57. Output. The rotation speed controller 57 is connected to the motor M, and controls the rotation speed of the motor M based on a control signal from the weighing controller 56. Accordingly, when the pet table 1 is moved up and down, the rotation speed of the motor M of the electric actuator 36 is controlled according to the weight of the pet a placed on the pet table 1.

  That is, when obtaining a constant power P, the motor torque T and the rotational speed n (rotational speed / angular speed) are inversely proportional (T × n = constant × P). Thereby, when the predetermined power P is obtained, the motor torque T can be reduced by increasing the rotational speed n. Therefore, the load is reduced. On the other hand, when the motor torque T is constant, a large power P can be obtained by increasing the rotational speed n. In accordance with this principle, the weighing controller 56 sends a determination signal as to whether the pet a is heavy or light to the rotary speed controller 57, and the rotational speed controller 57 controls the rotational speed n of the motor M.

Accordingly, the pet table 1 moves up and down at a low speed for a large pet a with a heavy weight, while the pet table 1 moves up and down at a relatively high speed for a small pet a with a light weight. ing.
Incidentally, it is also possible to perform rotation control of the motor M of the electric actuator 36 at a predetermined constant speed by separating from the electronic weighing scale (load cell) 54.

  Next, an example of use and operation of the electric stretcher for pets configured as described above will be described.

  First, a pet a requiring medical examination or surgery is placed on the upper surface of the pet table 1 and conveyed to a predetermined place. When examining or operating the pet a, the stopper of the caster 11 prevents the pet table 1 from moving carelessly.

  Further, the weight of the pet a is automatically measured by the weight sensor 51 arranged on the lower surface of the pet table 1 and displayed on the weight display unit 52.

  In this weight measurement, as shown in the flowchart of FIG. 6 (b), after the electronic weighing scale 54 weighs the entire pet table 1 on which the pet a is placed, the pet table other than the pet a is obtained from this measured value. The weight such as 1 is subtracted (step S1). Thereby, the weight of the pet a is measured.

  The weighing controller 56 receives a signal from the electronic weighing scale 54 (step S2). Further, the control signal is output to the rotation speed controller 57 (step S3).

  Next, the rotation speed controller 57 connected to the motor M controls the rotation speed of the motor M based on the control signal from the weighing controller 56 (step S4).

  Thus, when the pet table 1 is moved up and down, the rotation speed of the motor M of the electric actuator 36 is controlled according to the weight of the pet a placed on the pet table 1. That is, the large pet a having a heavy weight slows down the operation of the pet table 1 by slowing the rotation speed of the motor M, while the small pet a having a low weight increases the rotation speed of the motor M to operate the pet table 1. Can be fast.

  Next, when the switch 37a for operating the X legs 23, 23 in the folding direction in the foot switch 37 is stepped on with the foot, the motor M of the electric actuator 36 rotates forward and the piston rod 31b contracts with respect to the cylinder 31a. By operating, the X legs 23 and 23 are folded, and the pet table 1 is pushed down (see FIGS. 4 and 5). At this time, if the foot pressure by the foot is released, the energization of the electric actuator 36 to the motor M is cut off, and the pet table 1 is stopped at a predetermined low position.

  On the other hand, when the switch 37b for operating the X legs 23, 23 in the extension direction in the foot switch 37 is stepped on with a foot, the motor M of the electric actuator 36 rotates in the reverse direction, extending the piston rod 31b with respect to the cylinder 31a. By operating, the X legs 23 and 23 are extended, and the pet table 1 is pushed up (see FIGS. 2 and 3). At this time, if the foot pressure by the foot is released, the energization of the electric actuator 36 to the motor M is cut off, and the pet table 1 is stopped at a predetermined height position.

  Thus, it is possible to set the height difference of the pet table, which is impossible with the conventional folding lifting mechanism, and it can be set as large as possible, and the height of the pet table between the height differences is also possible. Fine adjustment of the position can be performed accurately and smoothly.

M motor a pet 1 pet stand 1a flat plate portion 1b frame 3 guide portion 3a U-shaped frame 10 movable table 10a frame 11 caster 12 guide portion 12a U-shaped frame 20 folding elevating mechanism 21 pantograph mechanism 22 shaft 23 X leg 24 pin 25 Guide roller 26 Pin 31 Damper-type telescopic mechanism 31a Cylinder 31b Piston rod 32 Support arm 33 Connecting square bar 35 Support plate 36 Electric actuator 37 (37a, 37b) Foot switch 51 Weight scale sensor 52 Weight display unit 53 Switch 54 Electronic weighing scale (Load cell)
55 Control mechanism 56 Weighing controller 57 Rotational speed controller

Claims (3)

An electric stretcher and examination table for pets, in which a pet table is folded on a movable table and installed via an elevating mechanism,
The movable table has a moving caster attached to the lower surface,
The folding elevating mechanism has a pantograph mechanism and a damper-type expansion / contraction mechanism as main members, and the pantograph mechanism includes a pair of X legs pivotally supported at a substantially central intersection, and the upper ends of both X legs are The lower end of both X legs is pivotally supported on the movable table side, and is pivotally supported on the pet table side.
On the other hand, the damper-type expansion / contraction mechanism includes a piston rod pivotally supported on one X leg in the pantograph mechanism, and a cylinder in which the piston rod is inserted and disposed on the other X leg,
An electric stretcher and examination table for pets, comprising an electric actuator with a motor for extending and contracting the piston rod on the cylinder side.   2. The pet stretcher and examination table for pets according to claim 1, wherein the pet table is provided with a scale sensor on the lower surface side and a weight display section on a predetermined portion of the upper surface.   The electric stretcher and examination table for pets according to claim 1 or 2, wherein the motor of the electric actuator can be turned on and off by either a foot switch for pedal depression pressure operation or an operation button.

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