JP2000279243A - Height-adjustable worktop - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a new worktop enabling the height of the cooking table portion of the worktop to be easily adjusted by means of a simple mechanism, allowing any user to use the cooking table in a comfortable attitude whether he or she is a healthy person or wheelchair user, and avoiding an increase in manufacturing cost. SOLUTION: This worktop 1 comprises legs 3 having an enlarged portion 2 into which a wheelchair can advance, a supporting frame portion 4 placed over the legs 3, a cooking table 5 supported in a horizontal position by the supporting frame portion 4, and a handle 6 for manual rotating operations. The worktop 1 also includes a lifting drive mechanism portion 7 using a pinion 11 and a rack 12 for driving the cooking table 5 to lift or lower it by converting torque applied to the handle 6 into a vertical force, and transmitting the force to the cooking table 5 being supported by the supporting frame portion 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a height-adjustable worktable, and more particularly to a height-adjustable worktable for a cooking table. The present invention relates to a novel height-adjustable worktable that enables a cooking table to be used in a posture.

2. Description of the Related Art Conventionally, in order to allow a healthy person and a wheelchair user to operate cooking utensils and the like and to use kitchen knives and the like, respectively, for example, height adjustment of a cooking table surface is required. There is a cooking table that is made possible by using an electric mechanism or the like.

However, the above-mentioned conventional height adjustment means for a cooking table uses a motor and a complicated gear mechanism to adjust the height of the entire cooking table provided with a table. Therefore, there has been a problem that operation and maintenance become complicated, and the cost of the cooking table itself rises. The present invention has been made in view of the above circumstances, and it is possible to easily adjust the height of a portion of a cooking table on a cooking table with a simple mechanism. It is an object of the present invention to provide a novel cooking table that can use a cooking table in an appropriate posture and can avoid a rise in manufacturing cost.

According to a first aspect of the present invention, there is provided a cooking table including a leg having an enlarged portion into which a wheelchair can enter, a support frame disposed above the leg, and a support frame. It is characterized by having a cooking table supported in a horizontal arrangement by a frame portion, and an elevating drive mechanism for manually driving up and down the cooking table supported by the support frame portion. According to this invention, the cooking table supported by the support frame portion can be driven up and down manually by the lifting drive mechanism portion, and the leg portion is provided with an expanding portion into which a wheelchair can enter. Therefore, it is possible to easily adjust the height of the portion of the cooking table on the cooking table with a simple mechanism, not only for a healthy person but also for a wheelchair user. Can be executed. The cooking table according to the second aspect of the present invention is supported in a horizontal manner by the leg having the widening portion into which the wheelchair can enter, the support frame disposed above the leg, and the support frame. A cooking table, a handle for manual rotation operation, and a pinion for converting the rotational force applied to the handle into a vertical force and transmitting it to the cooking table supported by the support frame portion, and driving the cooking table up and down ,
And a lifting drive mechanism using a rack. According to this invention, by manually rotating the handle, the lifting drive mechanism using a pinion and a rack can raise and lower the cooking table supported by the support frame, and the leg The wheelchair is provided with an expanded portion so that it is easy to adjust the height of the portion of the cooking table in the worktable by a simple mechanism only for the wheelchair user, not to mention a healthy person, as well as a healthy person. The desired cooking can be performed using the cooking table in a comfortable posture. Also,
Since the handle, the lifting drive mechanism using the pinion and the rack are employed, the mechanism can be simplified, and the increase in the manufacturing cost of the cooking table itself can be avoided.
The cooking table according to the third aspect of the present invention is supported by the legs having the widened portion into which the wheelchair can enter, the support frame disposed above the legs, and the support frame arranged horizontally. A cooking table, a handle for manual rotation operation, and a jack for converting a rotational force applied to the handle into a vertical force and transmitting the force to a cooking table supported by the support frame portion, and driving the cooking table up and down And a lifting / lowering drive mechanism using the same. According to this invention, by manually rotating the handle, the lifting drive mechanism using a jack can raise and lower the cooking table supported by the support frame, and the legs Since the wheelchair is provided with an expanding portion that can enter, the height adjustment of the portion of the cooking table on the cooking table can be easily performed by a simple mechanism only by rotating the handle even in the case of a healthy person or a wheelchair user. The desired cooking can be performed using the cooking table in a comfortable posture. In addition, since the handle and the lifting drive mechanism using the jack are employed, the mechanism can be simplified, and an increase in the manufacturing cost of the cooking table itself can be avoided.

Embodiments of the present invention will be described below in detail. (Embodiment 1) FIG. 1 is a perspective view of a cooking table 1 according to Embodiment 1 of the present invention, and FIG. 2 is a cross-sectional view mainly showing an elevation drive mechanism of the cooking table 1. The cooking table 1 according to the first embodiment includes a leg 3 having an expanding portion 2 through which a person who wants to cook can enter while being on a wheelchair, and a support integrally disposed above the leg 3. A frame 4 and a cooking table 5 supported by the support frame 4 so as to be movable horizontally and vertically.
And a handle 6 for manual rotation operation, and a rotational force applied to the handle 6 is converted into a vertical force and transmitted to the cooking table 5 supported by the support frame 4, and the cooking table 5 is moved up and down. Driving pinion 11, rack 12
And an elevating drive mechanism unit 7 using A mechanism housing box 8 is provided at the rear of the support frame 4. In addition, the support frame 4 is formed in a shape that is in sliding contact with each wall surface of the rear portion, both side portions, and both corner portions of the front portion of the cooking table 5,
The cooking table 5 is supported so as to be movable in the vertical direction and not to fall. The lifting drive mechanism 7 will be described with reference to FIG. The lifting drive mechanism 7 has one end connected to the handle 6 and the cooking table 5
Is provided with a rotating shaft 9 protruding into the mechanism housing box 8 through the inside of the mechanism horizontally, and a rack 12 having a length of, for example, several tens cm, provided in the mechanism housing box 8 in a vertical arrangement. The pinion 11 attached to the end is engaged. Reference numeral 13 in FIG. 2 denotes a bearing for the rotating shaft 9 provided in the cooking table 5. Although not shown, the elevation drive mechanism 7 includes a temporary stop mechanism that stops the pinion 11 at that position when the rotational force on the pinion 11 is lost. According to the cooking table 1 of the first embodiment,
By manually rotating the handle 6, the rotation shaft 9 and the pinion 11 rotate, thereby
The pinion 11 itself meshing with the table moves up and down together with the cooking table 5 in the vertical direction. The leg 3
Is provided with a widening portion 2 into which a wheelchair can enter, so that the height of the table surface 5a of the cooking table 5 in the cooking table 1 can be adjusted only by rotating the handle 6 even for a healthy person or a wheelchair user. Can be easily performed, and desired cooking can be performed using the cooking table 5 in a comfortable posture. Further, since the lifting drive mechanism 7 is a simple mechanism including the handle 6, the rotating shaft 9, the pinion 11, and the rack 12, the mechanism is simplified, and a rise in the manufacturing cost of the cooking table 1 itself can be avoided. . (Embodiment 2) FIG. 3 is a perspective view of a cooking table 1A according to Embodiment 2 of the present invention, and FIG. 4 is a cross-sectional view mainly showing a lifting drive mechanism section 20 of the cooking table 1A. The configuration of the cooking table 1A according to the second embodiment is substantially the same as the configuration of the cooking table 1 according to the first embodiment, and thus the same elements are denoted by the same reference numerals.
The cooking table 1A according to the second embodiment is characterized in that a jack 30 that operates by rotating the handle 6 is employed as the lifting drive mechanism 20 that drives the cooking table 5 up and down. That is, as shown in FIG. 4, the lifting drive mechanism 20 is configured to rotate the handle 6 from the driving shaft 21 extending inside the cooking table 5 to the first bevel gear 22 and the second bevel gear 2.
3, through a vertically arranged connection shaft 24 and a third bevel gear 25, to be transmitted to a fourth jack drive for bevel gear 26 attached to a jack drive shaft 27 protruding from the jack 30. The jack 30 includes a jack body 31 that is vertically arranged as a whole, a drive box 32 having a built-in rotation restricting mechanism such as a ratchet that restricts rotation of the jack drive shaft 27, and a ratchet. A driving bevel gear 33 attached to the other end, a rotating screw body 35 vertically and rotatably coaxially arranged in the jack body 31 and a driven bevel gear 34 meshed with the driving bevel gear 33; The lifting screw body 36 meshed with the outer periphery of the upper side of the screw body 35, and a table receiver 37 arranged at the upper end of the jack body 31 so as to interlock with the lifting screw body 36 are provided. The upper surface of the table receiver 37 is joined to the lower surface of the cooking table 5. In FIG. 4, reference numeral 39 denotes a detent pin for the lifting screw 36. In addition, in this elevating drive mechanism section 20, in order to prevent the engagement of the third bevel gear 25 and the fourth bevel gear 26 from being released when the cooking table 5 is raised by driving the jack 30. An expansion joint 38 is provided on the vertically arranged connecting shaft 24. According to the cooking table 1A of the second embodiment, by manually rotating the handle 6, the first bevel gear 22, the second bevel gear 23,
Connection shaft 24, third bevel gear 25, fourth bevel gear 2 arranged vertically
6 to the drive bevel gear 33 of the jack 30,
Accordingly, the driven bevel gear 34 and the rotary screw 35 also rotate, and the lifting screw 36 and the table receiver 37 are driven up and down. Thus, the cooking table 5 also moves up and down. In addition, since the leg portion 3 is provided with the widening portion 2 into which a wheelchair can enter, the cooking table 1 can be rotated only by rotating the handle 6 even for a healthy person or a wheelchair user.
The height of the table surface 5a of the cooking table 5 in A can be easily adjusted, and desired cooking can be performed using the cooking table 5 in a comfortable posture. Further, since the lifting drive mechanism unit 20 includes the handle 6, the jack 30, the required number of shafts, bevel gears, and the like, the mechanism is simplified, and it is possible to avoid an increase in the manufacturing cost of the cooking table 1A itself. .

According to the present invention, the height of the portion of the cooking table on the cooking table can be easily adjusted not only by a healthy person but also by a wheelchair user. To perform the desired cooking,
It is possible to provide a height-adjustable cooking table capable of avoiding a rise in manufacturing cost by simplifying the mechanism.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a cooking table according to Embodiment 1 of the present invention.

FIG. 2 is a schematic cross-sectional view showing a main part of the cooking table according to Embodiment 1 of the present invention.

FIG. 3 is a perspective view showing a cooking table according to Embodiment 2 of the present invention.

FIG. 4 is a schematic sectional view showing a main part of a cooking table according to Embodiment 2 of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cooking table 1A Cooking table 2 Spreading part 3 Leg part 4 Support frame part 5 Cooking table 6 Handle 7 Elevation drive mechanism part 8 Mechanism accommodation box 9 Rotation axis 11 Pinion 12 Rack 20 Elevation drive mechanism part 21 Drive shaft 22 1st umbrella Gear 23 Second bevel gear 24 Connecting shaft 25 Third bevel gear 26 Fourth bevel gear 27 Jack drive shaft 30 Jack 31 Jack body 32 Drive box 33 Drive bevel gear 34 Follower bevel gear 35 Rotating screw body 36 Elevating screw body 37 Table receiver body

Claims (3)

[Claims] 1. A leg having an enlarged portion into which a wheelchair can enter, a support frame disposed above the leg, a cooking table supported horizontally by the support frame, and the support frame. A height-adjustable cooking table, comprising: a lifting drive mechanism that drives the cooking table supported by the unit up and down by manual operation. 2. A leg having an expanded portion into which a wheelchair can enter, a support frame disposed above the leg, a cooking table supported horizontally by the support frame, and a manual rotation operation. And a rotary drive using a pinion and a rack for converting a rotational force applied to the handle into a vertical force and transmitting it to a cooking table supported by the support frame, and driving the cooking table up and down. A height-adjustable cooking table, comprising: a mechanism; 3. A leg having an enlarged portion into which a wheelchair can enter, a support frame disposed above the leg, a cooking table supported horizontally by the support frame, and a manual rotation operation. And a vertical drive mechanism using a jack for converting a rotational force applied to the handle into a vertical force and transmitting the same to a cooking table supported by the support frame, and driving the cooking table up and down. And a height-adjustable worktop, comprising: