JP7031994B2 - A scale that can be moved in two directions, a stand that can accommodate and transport the scale, and a scale with a stand - Google Patents

Description

The present invention relates mainly to a large medical scale such as a wheelchair scale, the scale being movable in two directions, a stand capable of accommodating and transporting the scale, and a weight scale provided with the stand.

Conventionally, large thin scales for medical use such as wheelchair scales are heavy and difficult to lift and transport. Therefore, for example, as in Patent Document 1, a moving mechanism that can move in an inclined state is used for the scale itself. It is provided, or as in Patent Document 2, a stand with a tire is provided separately from the scale.

Japanese Patent Application Laid-Open No. 10-232161 Real Kaihei 2-140426

However, all of these move in only one direction. Since the wheelchair scale is large, it is difficult to carry it on a narrow curved road because the above configuration does not allow a small turn.

The present invention has been made in view of this, and an object of the present invention is to provide a weight scale that can be moved in two directions, a weight scale that can store and transport the weight scale, and a weight scale provided with a stand.

In order to solve the above problem, the weight scale in a certain aspect of the present invention is provided with a large flat plate type weighing table having a weighing mechanism and a stand that accommodates the weighing table and is movable on the floor surface. The stand is a first tire that touches the floor surface to support the stand when the stand is tilted, and the stand touches the floor surface when the stand is tilted to support the stand. It has a second tire that supports and is attached so that the traveling direction thereof forms a predetermined angle with the traveling direction of the first tire, and the first inclination of the stand when the first tire touches the floor surface. The angle is configured to be larger than the second inclination angle of the stand when the second tire is inclined to touch the floor surface.

Further, in one embodiment, the first tire and the second tire are provided in pairs, and the pair of the first tires travel in the traveling direction of the first tire so that their axial directions substantially coincide with each other. The pair of second tires are mounted in parallel with each other, and the pair of second tires are mounted side by side in parallel with respect to the traveling direction of the second tire.

In another aspect, the pair of second tires is configured to be arranged and attached between the pair of side-by-side first tires.

In another aspect, the second tire is configured to be attached so as to be inclined in an inclined direction in which the stand is inclined so as to be in contact with the floor surface of the second tire.

Further, in one embodiment, the cross-sectional shape of the ground contact surface of the second tire is configured to be arcuate.

Further, as one aspect of the present invention, it is a large-scale weight scale provided with a moving mechanism capable of moving the floor surface by tilting the scale, and when the weight scale is tilted, it touches the floor surface and has the weight. The first tire that supports the scale and the weight scale are supported by touching the floor when the scale is tilted, and the scale is attached so that the traveling direction thereof forms a predetermined angle with the traveling direction of the first tire. The first tilt angle of the scale when the first tire touches the floor surface is the second tilt angle of the weight scale when the second tire touches the floor surface. Provided is a scale configured to be larger than the tilt angle.

Further, as one aspect of the present invention, there is a stand that accommodates a measuring table and is movable on the floor surface, wherein the stand touches the floor surface and supports the stand when the stand is tilted. One tire and a second tire attached so as to support the stand by touching the floor surface when the stand is tilted and the traveling direction thereof forms a predetermined angle with the traveling direction of the first tire. The first tilt angle of the stand when the first tire touches the floor surface is configured to be larger than the second tilt angle of the stand when the second tire touches the floor surface. Provide a stand that will be.

According to the above aspect, since two tires having different traveling directions are attached, the vehicle can travel in two directions, and the direction change, that is, the change of the tire that is grounded and supported is determined by the inclination angle of the stand (or the scale). It is very easy to change the direction because it is determined, and it has a simple and compact configuration, a scale with a structure that has a small turn and is strong against inclination, a stand that can accommodate and transport the scale, and a weight equipped with a stand. Can provide a scale.

As is clear from the above description, according to the present invention, it is possible to provide a weight scale that can be moved in two directions, a stand that can store and transport the weight scale, and a weight scale provided with the stand.

It is a weight scale according to the embodiment of the present invention, in which (A) indicates a state of use and (B) indicates a state of accommodation. It is a front perspective view of a stand. It is a front view of a stand. It is a right side view of the stand. It is a rear view of a stand. It is a bottom perspective view of a stand. It is a front perspective view of the stand with the cover removed. FIG. 3 is a cross-sectional view taken along the line VIII-VIII of FIG. It is explanatory drawing explaining the stand accommodation of the measuring table. The tilted state of the stand accommodating the measuring table is shown, (A) is tilted by 0 degree, (B) is tilted by α degree or more and less than β degree, and (C) is tilted by β degree or more. It is an enlarged view of the stand of FIG. 10, and is the explanatory view which shows the ground contact state with the floor surface of a stand (the measuring table is omitted). It is a modification of the weight scale which concerns on the embodiment of this invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. The embodiments are not limited to the invention, but are exemplary, and all the features and combinations thereof described in the embodiments are not necessarily essential to the invention.

1A and 1B are weight scales 1 according to an embodiment of the present invention, in which FIG. 1A shows a usage state and FIG. 1B shows a storage state, and FIGS. 2 to 7 show a front perspective view and a front view of the stand 20, respectively. , Right side view, rear view, bottom perspective view, front perspective view with the cover removed. FIG. 8 is a cross-sectional view taken along the line VIII-VIII of FIG.

As shown in FIG. 1, the scale 1 includes a weighing table 10 and a stand 20. The weighing platform 10 has a substantially flat rectangular parallelepiped shape, and is a large thin scale for medical use such as a wheelchair scale. On the two opposite sides of the flat surface so that measurement can be performed, a gently sloping portion connected to the floor surface in the installed state is provided. The weighing mechanism of the weighing table 10 is detailed in, for example, Japanese Patent Application Laid-Open No. 10-232161, and has a conventionally known configuration.

The stand 20 can accommodate and transport the weighing platform 10, and can stand on its own without the need for support by others, whether it is in a state where the weighing platform 10 is accommodated or in a stand-alone state where the weighing platform 10 is not accommodated. ..

The stand 20 includes a display unit 21 that is supported so as to be swingable in the vertical direction. When the weight scale 1 is used, the display unit 21 is connected to the weighing table 10 installed on the floor surface by a cable 30 and displays the weighing result (see FIG. 1 (A)). When transporting the scale 1, the cable 30 is disconnected, the weighing platform 10 is inverted and housed in the stand 20, and the display unit 21 engages with the weighing platform 10 to fix the weighing platform 10 (FIG. 1). (B)). The measuring table 10 and the display unit 21 may be configured to be connected by wireless such as Bluetooth (registered trademark) instead of the cable 30.

The stand 20 includes a base 23 that is in contact with the floor surface, a support 22 that stands on the base 23, and a cover 27 that covers the base 23.

The support 22 is composed of a hollow metal member. The support 22 has two support end portions 22a that are vertically provided on the bottom surface portion 23a of the base 23, and the support end portion 22a is continuously inclined in the vertical direction in the back direction at a predetermined angle and extends upward. It has a portion 22b, a handle portion 22c that extends continuously in the horizontal direction (left-right direction) to the inclined portion 22b, and a horizontal portion 22d that connects the two inclined portions 22b in the horizontal direction. The handle portion 22c is gripped by the user when the weight scale 1 is transported. The display unit 21 is supported by the horizontal unit 22d. The support 22 supports and holds the weighing platform 10 when it is accommodated.

The base 23 is formed by bending and welding a single metal flat plate, and when the stand 20 is self-supporting, it continuously tilts upward from the bottom surface portion 23a and the bottom surface portion 23a, which are ground planes with the floor surface. It has a back surface portion 23b and a pair of side surface portions 23c facing the back surface of the support 22.

The front end of the side surface 23c is welded to the support end 22a, and the side surface 23c serves as a rib to reinforce the erection of the support 22.

A pair of first tires 25 are rotatably supported on the outside of the side surface portion 23c in parallel so that their axes are substantially aligned with each other. The axis of the first tire 25 is parallel to the handle portion 22c, and the traveling direction of the first tire 25 is the front-rear direction (arrow DR1 in FIG. 7).

Further, a pair of second tires 26 are rotatably supported on the back surface portion 23b by arranging them in parallel so that their axes are parallel to each other. The traveling direction of the second tire 26 is a left-right direction (arrow DR2 in FIG. 7), and is orthogonal to the traveling direction of the first tire 25.

The axis of the first tire 25 is arranged so as to be orthogonal to the side surface portion 23c and the axis of the second tire 26 is orthogonal to the back surface portion 23b, and the back surface portion 23b is provided so as to be inclined to the rear surface from the vertical direction. The second tire 26 is supported in a state of being tilted rearward with respect to the vertical direction (see FIGS. 6 and 8).

Since the first tire 25 and the second tire 26 are supported apart from the floor surface, neither the first tire 25 nor the second tire 26 touches the floor surface in a state where the stand 20 stands on its own. Therefore, the stand 20 is stable and self-supporting only on the bottom surface portion 23a.

A mounting table 24 made of a single metal flat plate is screwed to the upper surface of the bottom surface portion 23a. The mounting table 24 is formed so that the mounting surface 24a on which the measuring table 10 is mounted is raised on the front side so as to form a gentle angle with the bottom surface. The measuring table 10 placed upside down on the mounting surface 24a is slightly tilted toward the support 22 on the back surface to prevent the measuring table 10 from tipping over.

The bent portion 23d, which is the ridgeline between the bottom surface portion 23a and the back surface portion 23b, serves as a fulcrum when the user grips the handle portion 22c and tilts the stand 20 backward.

The base 23 is covered with a cover 27 formed according to the shape of the base 23. The cover 27 is formed with a recess 27a extending forward in the left-right direction. A side surface portion of the measuring table 10 having no inclined portion, which is the bottom surface in the accommodated state, is fitted in the recess 27a. An opening 27b corresponding to the mounting table 24 is provided on the bottom surface of the recess 27a, and the mounting surface 24a is exposed from the opening 27b with the cover 27 attached.

The cover 27 is arranged apart from the first tire 25 and the second tire 26, and does not interfere with the rotation of the first tire 25 and the second tire 26.

A large recessed bag portion 27c that can be used as a storage is formed near the center of the cover 27, and when the user transports the scale 1, a cable 30 or the like can be inserted therein and carried together.

As shown in FIG. 9, when the measuring table 10 is housed in the stand 20, the display unit 21 is first swung upward, the measuring table 10 is inverted and placed on the mounting surface 24a, and then the display unit 21 is placed again. Is swung downward to engage with the side surface of the weighing platform 10. The measuring table 10 fits into the recess 27a, is fixed to the display unit 21 in a state of being supported by the support 22 while slightly tilting backward, and is held by the stand 20 in a stable state. In the present embodiment, the display unit 21 is used for fixing the measuring table 10, but instead, the measuring table 10 may be fixed to the horizontal portion 22d by using a hook-and-loop fastener.

Here, the transport of the stand 20 will be described in detail with reference to FIGS. 10 and 11. FIG. 10 shows an inclined state of the stand 20 accommodating the measuring table 10, (A) is a state in which the stand 20 is self-supporting, (B) is a state in which the stand 20 is slightly inclined from the state of (A), (C). ) Indicates a state in which the stand 20 is tilted at a larger angle from the state of (B). 11 is an enlarged view of the stand 20 of FIG. 10, and is an explanatory diagram for explaining a ground contact state of the stand 20 with the floor surface. In FIG. 11, the weighing table 10 is omitted.

Neither the first tire 25 nor the second tire 26 is in contact with the floor when the entire surface is not inclined and the bottom surface 23a is in contact with the floor, that is, when the stand 20 is self-supporting (FIG. 11 (FIG. 11). See A). The second tire 26 is also slightly separated from the floor surface). At this time, the tangent line between the floor surface and the second tire 26 forms a slight angle α with the bent portion 23d as the center. Further, the tangent line of the first tire 25 and the second tire 26 and the floor surface form an angle β. The first tire 25 and the second tire 26 are arranged by adjusting the mounting position, the tire radius, and the mounting angle so that 0 <angle α <angle β and the angle β is larger than the angle α. ..

When the stand 20 is tilted toward the back surface by an angle α or more (less than an angle β) with the bent portion 23d as a fulcrum, the bottom surface portion 23a is separated from the floor surface and the second tire 26 touches the floor surface (FIG. 11B). )reference). At this time, the first tire 25 is not in contact with the floor surface, and the stand 20 is supported only by the second tire 26. Since the traveling direction of the second tire 26 is the left-right direction (the direction of entering and exiting from the door in FIG. 10B), the stand 20 can move in the left-right direction in a slightly inclined state.

The stand 20 is tilted further rearward with the second tire 26 as a fulcrum, and when the tilt angle exceeds the angle β, the first tire 25 touches the floor surface and the second tire 26 separates from the floor surface. The stand 20 is supported only by the first tire 25 (see FIG. 11C). Since the traveling direction of the first tire 25 is the front-rear direction, the stand 20 can be moved in the front-rear direction in this inclined state.

That is, the user can move the stand in the left-right direction by slightly tilting the stand 20 toward himself, and can push or pull the stand 20 by further tilting the stand 20. As shown in FIG. 10, the user can tilt the stand 20 slightly to carry it out from the door to the aisle, and in the aisle, the stand 20 can be further tilted to run and carry the aisle. Since the stand 20 can be moved in two directions by the above configuration, it can make a small turn, and the moving direction can be changed only by changing the tilt angle, so that the operation is very easy.

In this embodiment, the angle α = 1 degree and the angle β = 15 degrees. The angle α is preferably a fine angle of 0 degrees or more to about 5 degrees. The angle α = 0 degrees (the second tire 26 touches the floor surface when the stand 20 is independent) may be set, and the inclined fulcrum may be the second tire 26. The angle β is preferably 10 degrees or more.

In the first tire 25 and the second diamond 26 attached so that the traveling directions of each other form a predetermined angle, the inclination angle α at which the second tire 26 touches the floor surface and the inclination at which the first tire 25 touches the floor surface. It is possible to move in two directions simply by changing the angle β, but if the predetermined angle is approximately 90 degrees, it will move in the front-back and left-right directions, and the angle α for moving in the left-right direction will move in the front-back direction. It is preferable that the angle β is smaller than the angle β. This is based on the assumption that the movement in the left-right direction at an angle of α tilts the door in and out, and if the tilt angle is made too large, the length in the front-back direction increases by that amount, making it difficult to enter and exit through a narrow door. Since it is necessary to be able to use tires for lateral movement within a range that does not exceed the width of a general door, the angle α is preferably a fine angle. Furthermore, movement in the left-right direction is auxiliary, and normally, the handle portion 22c is gripped and the stand 20 is pushed forward or pulled backward to carry it, so the larger the tilt angle, the more stable it is and the more it is carried. Since it is easy, it is more convenient to allocate a tire (angle β) that requires a larger inclination angle for movement in the front-rear direction.

The first tire 25 and the second tire 26 are made of resin and are hardly deformed by a load. Of course, it is also possible to use rubber tires for both, and in that case, it is desirable to consider the elastic deformation of the tire when the measuring table 10 is loaded and the amount of sinking when tilted.

The second tire 26 with a smaller tire radius is arranged in parallel between the first tire 25, which is the main movement, and the whole functionally fits in a narrow range, and no mechanism for changing the movement direction is required. The mechanism is compactly integrated.

Since the ground contact surface of the first tire 25 and the second tire 26 has a round shape (the cross-sectional shape of the ground contact surface is an arc shape), the stand 20 can be stably supported even if the ground contact surface is inclined and touches the ground. Further, the second tire 26 is attached so as to be inclined in the same direction (backward direction) as the inclination direction of the stand 20, and has a structure resistant to the inclination.

Although the preferred embodiment of the present invention has been described above, the present invention is not limited to the above configuration. FIG. 12 shows a weight scale 1A and a weight scale 1B as modified examples. The scale 1A and the scale 1B do not have a stand as a separate body, and the support 22 extends upward and is directly attached to the measuring table 10 as a handrail in a form in which the above-mentioned stand transport function is provided on the measuring table 10. The first tire 25 and the second tire 26 are also provided directly on the weighing platform 10.

The weight scale 1A is transported and stored in this form as it is, and the user can self-propell in two directions by tilting the weight scale 1A, and transportation and weighing can be easily performed.

The weight scale 1B can be compactly folded and can be stored in a small space in a form in which the support 22 is rotated toward the measuring table 10 and folded at the time of storage.

Although the preferred embodiments and modifications of the present invention have been described above, the above-described embodiments are examples of the present invention, and these can be combined based on the knowledge of those skilled in the art, and such embodiments are also present. Included in the scope of the invention.

1 Weight scale 10 Weighing table 20 Stand 21 Display 22 Support 23 Base 25 1st tire 26 2nd tire

Claims (7)

A weight scale equipped with a large flat plate type weighing table having a weighing mechanism and a stand that accommodates the weighing table and can move the floor surface.
The stand is
The first tire that supports the stand by touching the floor when the stand is tilted,
When the stand is tilted, it touches the floor surface to support the stand, and the second tire is attached so that the traveling direction thereof forms a predetermined angle with the traveling direction of the first tire.
Have,
The first tilt angle of the stand when the first tire touches the floor surface is configured to be different from the second tilt angle of the stand when the second tire touches the floor surface.
A scale that features that. The first tire and the second tire are provided in pairs, respectively, and are rotatably attached apart from the floor surface.
The pair of first tires are mounted parallel to the traveling direction of the first tires so that their axial directions are substantially the same as each other.
The pair of second tires are mounted side by side in parallel with respect to the traveling direction of the second tire.
The weight scale according to claim 1. The pair of second tires are arranged and attached between the pair of side-by-side first tires.
The weight scale according to claim 2. The second tire is attached so that the stand is tilted and the second tire is tilted in an inclined direction in which the second tire touches the floor surface.
The weight scale according to any one of claims 1 to 3, wherein the scale is characterized by the above. The cross-sectional shape of the contact patch of the second tire is arcuate.
The weight scale according to any one of claims 1 to 4, wherein the scale is characterized by the above. It is a large scale equipped with a moving mechanism that can move the floor surface by tilting it.
The first tire that touches the floor surface to support the scale when the scale is tilted, and
A second tire attached so as to support the scale by touching the floor surface when the scale is tilted and the traveling direction thereof forms a predetermined angle with the traveling direction of the first tire.
Equipped with
The first tilt angle of the weight scale when the first tire touches the floor surface is configured to be larger than the second tilt angle of the weight scale when the second tire touches the floor surface. ing,
A scale that features that. A stand that accommodates a weighing platform and can move on the floor.
The stand includes a first tire that supports the stand by touching the floor surface when the stand is tilted.
When the stand is tilted, it touches the floor surface to support the stand, and the second tire is attached so that the traveling direction thereof forms a predetermined angle with the traveling direction of the first tire.
Equipped with
The first tilt angle of the stand when the first tire touches the floor surface is configured to be larger than the second tilt angle of the stand when the second tire touches the floor surface. ,
A stand that features that.

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