JP2009153671A - Height meter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress the decline of holding force of a cursor in a height meter. <P>SOLUTION: The cursor 18 is provided with a base part 40 to which a shaft body 44 is fixed and an end part 42, and a cursor holding member 16 has a box-shaped part 24 provided with an upper surface 26 and a side face 30a and a side face 30b each provided with a shaft hole 32. At a measuring position, the cursor holding member 16 is fitted to the base part 40 of the cursor 18, the inner surface of the base part 40 is pressed to the upper surface 26 of the cursor holding member 16 by energizing from an elastic body 54, and thus the posture of the cursor 18 is held. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a height meter.

Conventionally, a foldable height meter is known in which a cursor is rotatably supported by a cursor holding member attached to a support column. In such a foldable height meter, when holding the cursor horizontally when measuring the height, a method of fixing the cursor to the cursor holding member using a screw as in Patent Document 1 is conceivable. .
US Pat. No. 5,038,493

However, in the case where the cursor is fixed to the cursor holding member using a screw, there is a problem that the holding force of the cursor is impaired by loosening the screw.
This invention is made | formed in view of such a situation, and it aims at the solution of the subject of suppressing that cursor holding power falls.

  In order to solve the above-mentioned problems, a height meter according to the present invention includes a support column that extends in a vertical direction, a cursor holding member that is movably installed along the support column, and a horizontally attached to the cursor holding member. An extended shaft body, a cursor supported rotatably about the shaft body by the cursor holding member, and an elastic body for holding the posture of the cursor. A fixed hollow base, and an end extending from the base toward the opposite side of the cursor holding member, the cursor holding member having a box-shaped portion, and the box-shaped portion Has a top surface and a first side surface and a second side surface each having a shaft hole into which the shaft body is inserted, and the cursor is suspended from the cursor holding member. Folding The cursor is rotatable to a horizontal measurement position, and at the measurement position, the box-shaped portion of the cursor holding member is fitted into the base of the cursor, and the shaft body is By urging from the elastic body, the inner surface of the base is pressed against the upper surface of the box-shaped portion, so that the posture of the cursor is maintained. According to the above aspect, since the posture of the cursor is held by the urging force from the elastic body, it is possible to suppress a decrease in the holding force of the cursor as compared with the aspect using screws.

  In a preferred aspect of the present invention, the box-shaped portion of the cursor holding member has an inclined surface that is inclined downward from an end portion of the upper surface opposite to the support column, and the inclined surface is And curved so as to protrude toward the cursor. According to this aspect, when the external force acts and the cursor rotates with respect to the cursor holding member, the inner surface of the base of the cursor moves while being in surface contact with the curved inclined surface. When the members come into contact with each other, the forces acting on the two are dispersed. Accordingly, it is possible to prevent a large pressure from acting on the inner surface of the base portion of the cursor, so that a long life of the cursor is guaranteed.

  In a preferred aspect of the present invention, the box-shaped portion of the cursor holding member is hollow, and the elastic body is inserted into the back surface of the upper surface and the box-shaped portion. Between the two and compressed. According to this aspect, since the elastic body is installed inside the box-shaped portion, the elastic body does not get in the way.

  In a preferred aspect of the present invention, the shaft hole of the box-shaped portion of the cursor holding member is a slanted long hole, and the shaft hole has a first end and a second end in the longitudinal direction. The first end is located below the second end and close to the support column, and the shaft moves along the longitudinal direction of the shaft hole. When the cursor is at the measurement position, the shaft body is urged from the elastic body and pressed against the first end of the shaft hole. According to this aspect, the shaft hole is a slanted long hole having a first end and a second end in the longitudinal direction, and the shaft body biased from the elastic body includes the cursor holding member and the support column. Is fixed to the first end that is below the second end and close to the column. As a result, a force that is pushed from the shaft to the support column acts on the cursor holding member. In other words, since the cursor is pressed against the cursor holding member toward the support column, the cursor is stably held.

  FIG. 1 is a side view of a height meter according to the present embodiment. The height meter according to the present embodiment is a height meter with a weight scale. As shown in FIG. 1, the height meter 10 includes a platform 12 on which a person to be measured is placed, a column 14 extending from the platform 12 in a vertical direction, and a cursor holding member 16 that is movably installed along the column 14. And a cursor 18 held by the cursor holding member 16 and a display 20 for displaying a weight measurement result. The support column 14 is provided with a scale (not shown). In the present embodiment, the height is measured by another person reading the scale in a state where the cursor 18 is in contact with the top of the person to be measured placed on the platform 12. However, the height can also be measured by electrically detecting the position and movement amount of the cursor without providing a scale on the column 14.

  FIG. 2 is an exploded perspective view of the cursor holding member 16 and the cursor 18 as viewed obliquely from below. The cursor holding member 16 includes a sliding portion 22 that can move along the support column 14, and a box-shaped portion 24 provided in front of the sliding portion 22 (on the opposite side of the support column 14). The box-shaped portion 24 has a horizontal upper surface 26, an inclined surface 28, a side surface 30a, and a side surface 30b. The inclined surface 28 is inclined downward from the end of the upper surface 26 opposite to the support column 14.

  A shaft hole 32 a is provided on the side surface 30 a of the box-shaped portion 24. Further, the side surface 30b is provided with a shaft hole 32b. In the present embodiment, since the shaft hole 32a and the shaft hole 32b have the same shape, the shaft hole 32a will be described here. The shaft hole 32a is an inclined long hole. The shaft hole 32a has a first end 34 and a second end 36 in the longitudinal direction. The first end 34 is located below the second end 36 and close to the column 14.

  As shown in FIGS. 2 and 3, partition plates 38 a and 38 b are provided inside the box-shaped portion 24. The partition plates 38a and 38b face each other with a space therebetween. The upper edge of each of the partition plates 38 a and 38 b is continuous with the back surface of the upper surface 26 of the box-shaped portion 24. The side edges on both sides of each of the partition plates 38a and 38b are continuous with the back surface of the side surface 30a and the back surface of the side surface 30b.

  As shown in FIG. 2, the cursor 18 is a long member and includes a hollow base 40 and an end 42 extending from the base 40 toward the opposite side of the cursor holding member 16. In the present embodiment, the entire cursor 18 is hollow. However, not limited to this, only the base 40 may be hollow.

  The cursor 18 is supported by the cursor holding member 16 so as to be rotatable about the shaft body 44. The horizontally extending shaft body 44 is attached to the cursor holding member 16 and is fixed to the base portion 40 of the cursor 18. The shaft body 44 is inserted into shaft holes 46 a and 46 b provided in the base portion 40 of the cursor 18 and shaft holes 30 a and 30 b in the box-shaped portion 24 of the cursor holding member 16, and both ends thereof are the base portion 40 of the cursor 18. Fixed to. A flat washer 48, a spring washer 50, and a nut 52 are attached to each end of the shaft body 44. When the nut 52 is fastened in a known manner, the shaft body 44 is locked with respect to the base portion 40 of the cursor 18. Thus, in this embodiment, the shaft body 44 is locked without rotating with respect to the base 40. However, the shaft body 44 may be attached to a fixed position of the base portion 40 so as to be rotatable with respect to the base portion 40. Therefore, “fixed” here means that the shaft body 44 is attached at a fixed position regardless of whether or not the shaft body 44 rotates relative to the base portion 40. On the other hand, the shaft body 44 is movable along the longitudinal direction of the long hole-shaped shaft holes 30 a and 30 b in the box-shaped portion 24.

  As shown in FIGS. 2 and 3, an elastic body 54 for holding the posture of the cursor 18 is provided inside the cursor holding member 16. The elastic body 54 is compressed and disposed between the back surface of the upper surface 26 of the box-shaped portion 24 of the cursor holding member 16 and the shaft body 44 inserted into the box-shaped portion 24. More specifically, the elastic body 54 is compressed and disposed in a space surrounded by the back surface of the upper surface 26, the partition plates 38 a and 38 b, and the shaft body 44. The distance between the partition plate 38 a and the partition plate 38 b facing each other is set to be substantially the same as the outer diameter of the elastic body 54. In the present embodiment, the elastic body 54 is configured by a coil spring, and the shaft body 44 is urged downward from the elastic body 54 in the vertical direction.

  In the present embodiment, the cursor 18 can be rotated around the shaft body 44 from a folding position where the cursor 18 hangs down with respect to the cursor holding member 16 to a measurement position where the cursor 18 is horizontal. FIGS. 3A to 3C are views showing a cross section of a connecting portion between the base portion 40 of the cursor 18 and the box-shaped portion 24 of the cursor holding member 16.

  FIG. 3A is a diagram showing a state where the cursor 18 is in the folded position. As shown in FIG. 3A, when the cursor 18 is in the folded position, the shaft body 44 fixed to the cursor 18 abuts on the first end 34 of the shaft hole 32, and the cursor 18 is a cursor holding member. It hangs down against 16.

  FIG. 3B is a diagram illustrating a process in which the cursor 18 moves from the folding position to the measurement position. When an external force is applied so that the cursor 18 rotates with respect to the cursor holding member 16, the inner surface of the base 40 of the cursor 18 is in contact with the inclined surface 28 of the box-shaped portion 24 as shown in FIG. Moving.

  At this time, the shaft body 44 moves toward the second end portion 36 of the shaft hole 32 against the urging force of the elastic body 54. The reason for this will be described below. A distance La shown in FIG. 3A is a distance between the center of the shaft body 44 and the inner surface of the base portion 40 of the cursor 18 when the shaft body 44 is located at the first end 34 of the shaft hole 32. Since the shaft body 44 is fixed to the base portion 40, the value of the distance La is not changed. The distance Lb shown in FIG. 3B is the distance between the center of the shaft body 44 and the surface of the inclined surface 28 when it is assumed that the shaft body 44 is located at the first end 34 of the shaft hole 32. In the present embodiment, since the shape of the inclined surface 28 is selected so that the distance Lb exceeds the distance La, the inner surface of the base 40 of the cursor 18 moves while being in contact with the inclined surface 28 of the box-shaped portion 24. When doing so, the shaft body 44 moves from the first end portion 34 to the second end portion 36 side in the shaft hole 32 against the bias of the elastic body 54.

  As shown in FIG. 3B, the inclined surface 28 of the box-shaped portion 24 is curved so as to protrude toward the base 40 (cursor 18). When the cursor 18 rotates with respect to the cursor holding member 16, the inner surface of the base portion 40 moves while being in surface contact with the curved inclined surface 28, so that the inner surface of the base portion 40 and the cursor holding member 16 come into contact with each other. The power that works is distributed. Therefore, since the inclined surface 28 is curved so as to protrude toward the cursor 18, it is possible to prevent a large pressure from acting on the inner surface of the base portion 40 of the cursor 18, so that the long life of the cursor 18 is guaranteed. There is.

  FIG. 3C is a diagram showing a state where the cursor 18 is at the measurement position. When the cursor 18 is at the measurement position, the box-shaped portion 24 of the cursor holding member 16 is fitted into the base portion 40 of the cursor 18, and the shaft body 44 is biased from the elastic body 54 so that the inner surface of the base portion 40 is The posture of the cursor 18 is maintained by being pressed against the upper surface 26 of the box-shaped portion 24. More specifically, in the state where the cursor holding member 16 and the support column 14 are fixed, the shaft body 44 fixed to the base portion 40 is urged downward in the vertical direction from the elastic body 54, so that the inner surface of the base portion 40 becomes the base portion. It is pressed against the upper surface 26 of the box-shaped part 24 fitted into 40. As a result, the cursor 18 is held horizontally. Further, when the cursor 18 is at the measurement position, the inner surface of the base 40 of the cursor 18 and the upper surface 26 of the box-shaped portion 24 come into contact with each other, so that the cursor 18 moves upward in the vertical direction from the horizontally held state. Never do.

  Further, as shown in FIG. 3C, when the cursor 18 is at the measurement position, the shaft body 44 is urged from the elastic body 54 and pressed against the first end 34 of the shaft hole 32. In the present embodiment, the shaft hole 32 is a slanted long hole having a first end 34 and a second end 36 in the longitudinal direction, and the shaft 44 is formed by the cursor holding member 16 and the column 14. In the fixed state, the cursor is pressed against the first end 34 below the second end 36 and close to the support column, so that the cursor holding member 16 is moved rearward from the shaft body 44 (that is, on the support column 14 side). Pressed force works. That is, since the cursor 18 is pressed backward against the cursor holding member 16, the cursor 18 is held more stably.

  As described above, in the present embodiment, since the posture of the cursor 18 is held by the bias from the elastic body 54, the cursor 18 is held as compared with the mode in which the posture of the cursor 18 is held using a screw. It can suppress that power falls. In the aspect of holding the posture of the cursor 18 using a screw, it is necessary to fix the cursor 18 with the screw every time the cursor 18 is set to the measurement position, so that the screw is easily worn and the cursor holding force is easily reduced. There's a problem. In the present embodiment, since the cursor 18 is held by the urging force from the elastic body 48, such a problem does not occur. Therefore, according to the configuration of the present embodiment, it is possible to suppress a decrease in the holding force of the cursor 18.

The present invention is not limited to the above-described embodiments, and for example, the following modifications are possible. Also, two or more of the modifications shown below can be combined.
(1) Modification 1
In the above-described embodiment, the elastic body 54 is configured by a coil spring. For example, the elastic body 54 can be configured by a leaf spring or rubber. Alternatively, the elastic body 54 may be configured by a tension spring, and the tension spring may be installed outside the cursor holding member 16. According to this aspect, since it is not necessary to secure a space for arranging the elastic body 54 inside the cursor holding member 16, the cursor holding member 16 does not need to be a hollow member. However, according to the configuration in which the elastic body 54 is arranged inside the cursor holding member 16 as in the present embodiment, there is an advantage that the elastic body 54 does not get in the way.

(2) Modification 2
In the above-described embodiment, when the cursor 18 is in the folded position, the cursor 18 hangs down with respect to the cursor holding member 16, but the cursor 18 may hang down in parallel with the column 14. Further, it may be an aspect that hangs down with respect to the support column 14. However, when the cursor 18 is in the folded position, the cursor 18 hangs down in parallel to the column 14, so that space is saved in front of the column 14 (on the side where the cursor holding member 16 and the cursor 18 are installed). There is an advantage that can be achieved.

(3) Modification 3
In the above-described embodiment, the shaft hole 32 provided in the box-shaped portion 24 of the cursor holding member 16 is an inclined long hole, but the shape of the shaft hole 32 is arbitrary. In short, the shape of the shaft hole 32 may be selected so that the cursor 18 can rotate with respect to the cursor holding member 16.

(4) Modification 4
In the above-described embodiment, the inclined surface 28 is an aspect in which the inclined surface 28 inclines downward from the end of the upper surface 26 opposite to the support column 14 and curves so as to protrude toward the cursor 18, but is not limited thereto. The inclined surface 28 can be linearly inclined downward from the end of the upper surface 26 opposite to the support column 14, or the inclined surface 28 can be omitted.

(5) Modification 5
In the above-described embodiment, the upper surface 26 of the box-shaped portion 24 of the cursor holding member 16 is a horizontal plane, but the upper surface 26 has an inner surface of the base 40 of the cursor 18 when the cursor 18 is at the measurement position. Any surface that abuts may be used. For example, the upper surface 26 may be an inclined flat surface or a curved surface.

It is a side view of the height meter which concerns on embodiment of this invention. It is a disassembled perspective view of the cursor holding member and cursor which concern on the embodiment. It is a figure which shows the cross section of the connection part of the cursor and cursor holding member which concern on the embodiment.

Explanation of symbols

10 ... Height meter, 14 ... Column, 16 ... Cursor holding member, 18 ... Cursor, 24 ... Box-shaped part, 26 ... Top surface, 28 ... Inclined surface, 30a, 30b ... Side surface, 32a 32b ... shaft hole 34 ... first end 36 ... second end 40 ... base 42 ... end 44 ... shaft 54 ... elastic body

Claims (4)

A column extending vertically,
A cursor holding member installed movably along the column;
A horizontally extending shaft attached to the cursor holding member;
A cursor supported rotatably about the shaft body by the cursor holding member;
An elastic body for holding the posture of the cursor,
The cursor is
A hollow base portion to which the shaft body is fixed, and an end portion extending from the base portion toward the opposite side of the cursor holding member,
The cursor holding member is
Has a box-shaped part,
The box-shaped portion has an upper surface, and a first side surface and a second side surface each having a shaft hole into which the shaft body is inserted,
The cursor is rotatable from a folding position where the cursor hangs down with respect to the cursor holding member to a measurement position where the cursor is horizontal,
In the measurement position, the box-shaped portion of the cursor holding member fits into the base portion of the cursor, and the shaft body is biased from the elastic body, whereby the inner surface of the base portion is the box-shaped portion. The posture of the cursor is held by being pressed against the upper surface of the portion. The box-shaped portion has an inclined surface that is inclined downward from an end portion of the upper surface opposite to the support column,
The height meter according to claim 1, wherein the inclined surface is curved so as to protrude toward the cursor. The box-shaped portion of the cursor holding member is hollow,
The height meter according to claim 1, wherein the elastic body is compressed and disposed between a back surface of the upper surface and the shaft body inserted into the box-shaped portion. The shaft hole of the box-shaped portion of the cursor holding member is an inclined long hole,
The shaft hole has a first end and a second end in the longitudinal direction, and the first end is below the second end and close to the support column. In position
The shaft body is movable along the longitudinal direction of the shaft hole,
The height according to any one of claims 1 to 3, wherein when the cursor is at the measurement position, the shaft body is urged from the elastic body and pressed against the first end of the shaft hole. Total.

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