JP2001343236A - Bubble-tube-type level - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drastic bubble-tube-type level that can achieve a bubble position correction mechanism without using any support part-mounting structure such as an elastic member, a fixed hole, a support hole, and a mounting support cylinder, can reduce the number of parts and facilitate manufacture, is superb in mass production, and can reduce costs. SOLUTION: In this bubble-tube-type level for measuring the degree of verticalness and horizontalness of a measurement surface 1 according to the position of a bubble 6 of a bubble-tube-type measurement part 5 when a reference surface 2 is brought into contact with a measurement surface 1, a suppression contact part 9 that is suppressed to and brought into contact with the inner surface of an equipment body 3 is integrated with an insertion body 7 that is formed by resin, at the same time a screwing hole where an adjustment bolt 8A that is provided at the equipment body 3 is screwed is provided, the degree of suppression of the suppression contact part 9 of the insertion body 7 is changed by the move of the screwing of the adjustment bolt 8A to slightly changing the fixed posture of the insertion body 7 and the bubble- tube-type measurement part 5 that is fixed to the insertion body 7, thus composing a bubble position adjustment mechanism 8 so that the position of the bubble 6 of the bubble-tube-type measurement part 5 can be corrected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bubble tube level.

[0002]

2. Description of the Related Art A bubble tube type level provided with a bubble tube type measuring unit on the upper surface or a side surface (front) of a horizontal rectangular cylindrical body as a reference surface to be applied to a measurement surface. There is, for example, a bubble tube measuring section provided on the side of the body to measure the verticality of the wall by applying the body to the wall, the bubble tube measuring section is fitted and fixed to an insert inserted into the body. The insertion body is inserted and fixed in the body.

Further, a bubble position correcting mechanism for finely correcting the fixed posture of the insertion body is provided to correct the deviation of the bubble position due to the mounting.

Various structures have been proposed as a mounting structure for such a bubble tube type measuring unit.
The configuration is as shown in FIG.

[0005] That is, in front of the body 21, a bubble tube type measuring unit
Window hole 23 from which 22 is exposed, fixing hole 24, and bubble position correction mechanism
A mounting hole 27 into which 25 adjustment bolts 26 are inserted is provided.

An insert 28 to be inserted into the vessel 21 is a resin molded product, and a fitting hole 30 is provided at the center thereof. Is configured to fit and fix a bubble tube measuring unit 22 made of aluminum. In addition, one end of the insert 28 is in communication with the fixing hole 24,
A fulcrum hole 34 for fixing one end of the insert 28 by engaging the mounting fulcrum tube 31 is provided, and an elastic material is provided at the other end of the insert 28.
A screw hole 33 into which the adjustment bolt 26 inserted from the mounting hole 27 is screwed with a 32 (coil spring) interposed therebetween is provided.

Therefore, the bubble tube measuring section 22 is fitted and fixed in the fitting hole 30 of the insert 28 so that the bubble tube 29 is oriented in a predetermined direction. The fulcrum hole 34 and the fixing hole 24 are aligned, the fitting fulcrum tube 31 is fitted and locked, and the adjusting bolt 26 is screwed into the screw hole 33 to fix the insert 28. If the bubble 35, which must be located at the center when the wall surface is vertical, is out of order at the time of the assembling, the adjusting bolt 26 is screwed in to correct this. By this screwing, the degree of screwing of the insert 28 into the screw hole 33 is changed while the head of the adjustment bolt 26 is locked in the mounting hole 27, whereby the insert 28 is attached to the mounting fulcrum tube on the opposite side. The elastic member 32 is expanded and contracted with the fulcrum 31 as a fulcrum, and its posture is slightly rotated, so that the position of the bubble 35 is corrected.

[0008]

However, in the conventional structure as described above, the insert 28 is formed of resin, but the elastic member 32 for adjusting the position of the bubble tube and a fulcrum for fixing one end as a fulcrum. A hole 34 and a mounting fulcrum cylinder 31 are required, and a fixing hole 24 must be formed at a predetermined position in addition to a window hole 23 and a mounting hole 27 for an adjustment bolt 26 in the body, so that the number of parts is large, and Nor is it easy.

Moreover, the operation of inserting and positioning the insert 28 at a predetermined position is not easy, and the mounting fulcrum tube 31 must be fitted and locked in the communication hole between the fixing hole 24 and the fulcrum hole 34 as described above. In addition, it is not easy to dispose the elastic member 32.

According to the present invention, unlike the conventional mounting structure, a bubble position correcting mechanism can be realized without using any fulcrum mounting structure such as the elastic member 32, the fixing hole 24, the fulcrum hole 34, and the mounting fulcrum tube 31. It is an object of the present invention to provide a revolutionary bubble level that can reduce the number of parts and facilitate production, excel in mass productivity, and can reduce costs.

Furthermore, the positioning operation of the insertion body inside the body becomes extremely easy, and even when the window hole is located at a position away from the end opening of the body, that is, when the insertion hole is inserted into the end closing member of the body. Even if the insertion body is pushed into the center of the container and moved, instead of connecting the bodies continuously, the positioning of the movement of the insertion body becomes easy, and the adjusting bolt and the screw hole of the insertion body are screwed. An object of the present invention is to provide a revolutionary bubble-tube level in which the operation of fixing the insert at the position of the window hole can be extremely easily performed, and the efficiency of the assembling operation is extremely improved.

It is still another object of the present invention to provide an extremely revolutionary bubble-tube level which can surely correct the bubble position by adjusting the screw of the adjustment bolt even if the adjustment bolt is used as one place.

[0013]

The gist of the present invention will be described with reference to the accompanying drawings.

An insert 7 having a bubble tube type measuring unit 5 is inserted into a vessel 3 having a reference surface 2 abutting on the measuring surface 1,
The insert 7 is fixed at a position where the bubble tube measuring unit 5 can be visually recognized from the window 4 provided in the container 3, and the insert 7 is finely adjusted with respect to the container 3 to adjust the bubble 6. The measuring surface 1 is provided with a bubble position correcting mechanism 8 for correcting the position.
In the bubble tube level that measures the verticality or the horizontality of the measurement surface 1 according to the position of the bubble 6 of the bubble tube measurement section 5 when the reference surface 2 is brought into contact with the reference surface 2, A resilient contact portion 9 for resiliently contacting the inner surface of the body 3 is integrally formed, and a screw hole 8B for screwing an adjustment bolt 8A provided on the body 3 is provided.
By changing the degree of resilient pressure of the resilient contact portion 9 of the insert 7 by the screwing, the fixing posture of the insert 7 and the fixed section of the bubble tube measuring section 5 fixed to the insert 7 are minutely changed, and the The present invention relates to a bubble tube type level wherein the bubble position adjusting mechanism 8 is configured so that the position of the bubble 6 of the expression measuring section 5 can be corrected.

Further, the insertion member 7 is configured to be inserted from an end opening of the hollow portion 3A of the container 3, and the elastic contact portion 9 provided on the insertion member 7 at the time of this insertion is used as the container. The inner body of the body 3 is configured to abut against the inner surface of the hollow part 3A, and the insert 7 is press-fitted and slid into the hollow part 3A of the body 3 so that the insert 7 can be set to move to a predetermined position. A bubble tube type level according to claim 1, characterized in that:

Further, the elastic contact portions 9 are provided at both ends of the insert 7, and the screw holes 8B are provided at positions closer to one side between the elastic contact portions 9. , 2 according to the bubble tube level.

The resilient pressure contact portion 9 is resiliently pressed against the inner surface of the hollow portion 3A of the container 3 so as to resiliently contact the inner body 3A.
The bubble level according to any one of claims 1 to 3, wherein the bubble level is provided at an opposite position.

Further, when the insert 7 is formed of a resin, a bent protruding portion is integrally formed at an end portion, and the bent protruding portion is used as the elastic contact portion 9. A bubble tube level according to any one of the above.

Further, a mounting hole 8C for inserting the adjustment bolt 8A of the bubble position correcting mechanism 8 is provided at a predetermined position of the container 3, and the head of the adjustment bolt 8A is locked in the mounting hole 8C. By screwing the adjustment bolt 8A into the screw hole 8B provided in the insert 7, the insert 7
6. The bubble level according to any one of claims 1 to 5, wherein the degree of resilient pressure of the resilient contact portion 9 is changed.

Further, the reference surface 2 is formed on the bottom surface of the container 3, the window hole 4 is formed on the side surface or the front surface of the container 3, and the bubble position is provided at a predetermined position on the upper surface of the container 3. A mounting hole 8C for inserting the adjustment bolt 8A of the correction mechanism 8 is provided. The adjustment bolt 8A is inserted from the mounting hole 8C, and the insertion body 7 held in the body 3 by the elastic contact portion 9 is provided. It is screwed into the screw hole 8B provided, and the degree of elasticity of the elastic contact portion 9 is changed according to the degree of screwing.
The insertion body 7 is fixed in the body 3 and the fixing posture of the insertion tube 7 and the fixing unit 5 fixed to the insertion unit 7 are slightly changed to correct the position of the bubble 6 of the bubble tube measurement unit 5. 7. The bubble level according to claim 1, wherein the bubble position adjusting mechanism 8 is configured so as to be capable of being operated.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment (how to carry out the invention) of the present invention, which is considered to be the best, will be briefly described with reference to the drawings, showing its operational effects.

According to the present invention, the elastic pressure contact provided integrally with the insert 7 by screwing the adjustment bolt 8A into the screw hole 8B of the insert 7 inserted into the container 3 and adjusting the screw movement. The degree of repression of the portion 9 on the inner surface of the container 3 changes, and the fixing posture of the insert 7 in the container 3 slightly changes, thereby changing the posture of the bubble tube measuring unit 5 fixed to the insert 7. By doing so, the position of the bubble 6 can be corrected.

That is, the bubble position correcting mechanism 8 can be constructed without using a separate member such as a spring material, and without the need for a fulcrum structure, thereby reducing the number of parts and greatly simplifying the assembling process. It is a very practical bubble-tube level.

The adjusting bolt 8 of the bubble position correcting mechanism 8
A, Before screwing and fixing by the screw holes 8B, that is, when inserting the insert 7 into the body 3, the elastic contact portion 9 of the insert 7 is already in elastic contact with the inner surface of the container 3. By doing so, it is extremely easy to move the insert 7 to a predetermined position for positioning.

That is, instead of a structure in which the closing member 10 for closing the opening at the end of the body 3 and the insert 7 are integrally provided, the window hole 4 is provided not at the end of the body 3 but at the center. When it is desired to provide the bubble tube type measuring unit 5 at the center of the body 3, the insertion body 7 is inserted into the hollow portion 3A from the end opening of the body 3 and set to move. In this case, since the resilient contact portion 9 of the insert 7 is resiliently pressed against the inner surface of the hollow portion 3A of the container 3, the insert 7 is slid and moved inside the hollow portion 3A. It becomes very easy to set the movement.

In other words, the bubble tube measuring unit 5 and the vessel 3
The insertion body 7 is moved and set to a position where the window hole 4 matches with the screw hole 8B and the mounting hole 8C, and the adjusting bolt 8A is inserted from the mounting hole 8C and screwed into the screw hole 8B. Although it is necessary, this movement setting becomes easy, and since the temporary fixing is maintained even after the movement by the elastic contact by the elastic contact section 9, the screwing work of the adjusting bolt 8A becomes easy, and the assembling work efficiency is extremely high. Will be improved.

If the elastic contact portions 9 are provided above and below the insert 7 so as to elastically contact the opposing surfaces (for example, upper and lower surfaces) of the hollow portion 3A of the container 3, the slide movement setting and temporary holding can be performed. Function becomes better.

Further, a resilient contact portion 9 is provided on the left and right of the insert 7, and a screw hole 8 is provided near one end between the left and right resilient contact portions 9.
By providing B and screwing the adjustment bolt 8A, there is no need to use a separate spring material as in the conventional case, and without providing the adjustment bolt 8A in two places on the left and right, as in this one conventional case. Without using a separate spring material, the degree of resilience of the left and right resilient abutment portions 9 is changed by the screwing of the adjusting bolt 8A, so that a good posture change adjustment can be achieved with only one adjusting bolt 8A. And good bubble position correction can be performed.

[0029]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described with reference to the drawings.

According to the present invention, a circular window hole 4 for exposing a vertical bubble tube measuring section 5 is provided on the side (front) of the container 3 with the bottom surface of the container 3 having a horizontal rectangular hollow cylindrical shape as a reference surface 2. To form
The bubble position correcting mechanism 8 is provided at a predetermined position on the upper surface of the container 3.
Mounting holes 8C into which the adjustment bolts 8A are inserted.

The insert 7 to be inserted into the body 3 from the opening at the end of the body 3 closed by the closing member 10 is formed of resin, and a fitting hole 11 is provided at the center, and this fitting is performed. A circular transparent resin bubble tube measuring unit 5 in which a bubble tube is embedded and molded in the hole 11 is fitted and fixed. A resilient contact portion 9 for resiliently contacting the inner surface of the hollow portion 3A of the vessel 3 is integrally formed on the resin-molded insert 7, and a screw hole 8B is provided near one end.

The screw hole 8B may be a screw hole. In this embodiment, since the screw hole 8B is made of resin, the screw hole 8B is formed as a fine hole to be fixed by screwing the adjusting bolt 8A.

Specifically, when the insert 7 is formed of resin, a plate-shaped bent protrusion is integrally formed at an end portion, and the bent protrusion is used as the elastic contact portion 9.

Further, in this embodiment, an elastic contact portion 9 is provided at both upper ends of the insert 7, and the screw hole 8B is provided at a position closer to one side between the elastic contact portions 9, and Resilient pressure contact portions 9 are also provided at both lower end portions of the insert 7 so as to abut against the opposing inner surface of the hollow portion 3A.

Therefore, in this embodiment, the hollow portion 3A of the body 3 is
The insertion member 7 is inserted from the end opening of the insertion member, and at this time, the four elastic contact portions 9 of the insertion member 7
The insert 7 is inserted into the hollow portion 3A of the body 3 by press-fitting and sliding.
Can be set to move to a predetermined position.

Therefore, the elastic contact portion 9 of the insert 7 is
Is pressed against the inner surface of the hollow portion 3A of the
Is to be press-fitted and slid in the hollow portion 3A, so that the movement setting to a predetermined position becomes very easy.

In other words, the vertical bubble tube measuring unit 5
And the window hole 4 of the body 3 match, and the screw hole 8B and the mounting hole 8C
The insertion body 7 is moved and set to a position where
It is necessary to insert the adjustment bolt 8A from above and screw it into the screw hole 8B, but this movement setting becomes easy, and since the elastic pressure abutment by the elastic pressure abutment portion 9 temporarily holds the post-movement, The screwing work of the adjusting bolt 8A is also facilitated, and the assembling work efficiency is extremely improved.

Further, since the elastic pressure contact portions 9 are provided on the upper and lower sides of the insert 7 so as to elastically contact the opposing surfaces (for example, upper and lower surfaces) of the hollow portion 3A of the body 3, the slide movement setting and temporary The holding function is further improved.

Further, in this embodiment, the degree of elasticity of the elastic contact portion 9 of the insert 7 is changed by screwing of the adjusting bolt 8A provided on the container 3, so that the air bubbles fixed to the insert 7 and the insert 7 are changed. The bubble position adjusting mechanism 8 is configured so that the fixed posture of the tube-type measuring unit 5 can be slightly changed to correct the position of the bubble 6 in the bubble-tube measuring unit 5.
Adjustment bolt 8A of bubble position correcting mechanism 8 at a predetermined position on the upper surface of
Is provided, and the adjusting bolt 8A is screwed into a screwing hole 8B provided in the insertion body 7 in a state where the head of the adjusting bolt 8A is locked in the mounting hole 8C. It is configured to change the degree of elasticity of the elastic contact portion 9 of the insert 7 with respect to the inner surface 3.

Therefore, in this embodiment, the bubble position correcting mechanism 8 can be constructed without using a separate member such as a conventional spring material, and without the need for a fulcrum structure, and the number of parts can be reduced. Is a very practical bubble level that can be greatly simplified.

Further, as described above, the insert 7 has the hollow portion 3A.
In order to slide the inside, the insertion tube 7 can be set to move to a position where the bubble tube measuring unit 5 and the window hole 4 of the body 3 match and the screw hole 8B and the mounting hole 8C match. The adjusting bolt 8A can be easily screwed, and the efficiency of the assembling work can be greatly improved.

Further, an elastic contact portion 9 is provided on the left and right sides of the insert 7, and a screw hole 8 is provided near one end between the left and right elastic contact portions 9.
By providing B and screwing the adjustment bolt 8A, the elasticity of the left and right elastic pressure joints 9 is changed by the screwing of the adjustment bolt 8A without using a separate spring material as in the related art. That is, good posture change adjustment can be performed with only one adjustment bolt 8A, and good bubble position correction can be performed.

In the drawing, reference numeral 12 denotes a finger insertion window, and reference numeral 13 denotes a horizontal bubble tube measuring unit.

[0044]

Since the present invention is constructed as described above, it is completely different from the conventional mounting structure, and the bubble position can be corrected without using any fulcrum mounting structure such as elastic material, fixing holes, fulcrum holes and fulcrum tubes. Bubble tube that offers a revolutionary bubble level that can realize a mechanism, reduces the number of parts and facilitates production, excels in mass productivity, and can reduce costs. It becomes an expression level.

According to the second aspect of the present invention, the positioning operation of the insertion body in the body becomes extremely easy, and even if the window hole is located at a position apart from the end opening of the body, Even when the insert is pushed into the center of the body instead of connecting the insert to the end closing member of the body, the insert can be easily moved and positioned, and the elastic pressure is maintained even after the movement is set. This makes it extremely easy to fix the insert at the window hole by screwing the adjustment bolt and the screw hole of the insert, and the efficiency of the assembly is extremely improved. It is a more excellent bubble tube level that can provide a level.

According to the third aspect of the present invention, even if the adjusting bolt is used as a conventional one, the degree of elasticity of the left and right elastic contact portions is changed by the screwing adjustment of the adjusting bolt, so that the air bubbles are reliably formed. It is an extremely innovative bubble level that can be repositioned.

Further, in the invention according to the fourth aspect, the movement setting by the press-fit slide is further facilitated, the temporary holding function after the movement setting is further improved, and the bubble position adjustment is further improved. Excellent bubble level.

According to the fifth aspect of the present invention, a resilient pressure contact portion which easily exerts a good resilient pressure contact action can be formed, and the bubble tube type excellent in practicability such as excellent mass productivity. Container.

[Brief description of the drawings]

FIG. 1 is an explanatory perspective view of this embodiment.

FIG. 2 is an explanatory exploded perspective view of the present embodiment.

FIG. 3 is an enlarged explanatory cross-sectional view of a main part of a vertical bubble tube measuring unit according to the present embodiment after mounting and fixing and before correction of a bubble position.

FIG. 4 is an enlarged explanatory cross-sectional view of a main part of the vertical bubble tube measuring unit of this embodiment after mounting and fixing and after correcting the bubble position.

FIG. 5 is an explanatory sectional view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Measurement surface 2 Reference surface 3 Instrument body 3A hollow part 4 Window hole 5 Bubble tube measuring part 6 Bubble 7 Insert 8A Adjustment bolt 8B Screw hole 8C Mounting hole 9 Resilient pressure contact part

Claims (7)

[Claims] 1. An insertion body provided with a bubble tube measuring unit is inserted into a container having a reference surface in contact with a measurement surface, and the bubble tube measuring unit can be visually recognized from a window provided in the container. Along with fixing the insert at the position, the insert is provided with a bubble position correcting mechanism that finely adjusts the insert with respect to the container to correct the bubble position, when the reference surface is brought into contact with the measurement surface. In a bubble tube level that measures the verticality or horizontality of the measurement surface according to the bubble position of the bubble tube measuring unit, an elastic pressure contact portion that elastically contacts the inner surface of the body is integrally formed with the resin-molded insert. And a screw hole into which an adjustment bolt provided on the vessel is screwed, and the degree of elasticity of the elastic contact portion of the insert is changed by screwing of the adjustment bolt, so that the insert and the insert The fixed attitude of the bubble tube measuring unit fixed to A bubble tube level, wherein the bubble position adjusting mechanism is configured so that the bubble position of the bubble tube measuring unit can be corrected by a small change. 2. The insertion body can be inserted from an end opening of the hollow part of the vessel, and the elastic contact portion provided on the insertion body at the time of the insertion is formed in the hollow part of the vessel. 2. The bubble tube according to claim 1, wherein the inner surface is configured to abut against the inner surface, and the insert is press-fitted and slid into the hollow portion of the container so that the insert can be set to move to a predetermined position. Expression level. 3. The elastic body according to claim 1, wherein the elastic contact portions are provided at both ends of the insert, and the screw holes are provided at positions closer to one side between the elastic contact portions. A bubble tube level according to claim 1. 4. The container according to claim 1, wherein the elastic contact portion is provided at a position facing the insert so as to elastically contact an inner surface of the hollow body. A bubble tube type level according to 4. 5. The molding according to claim 1, wherein a bent projection is integrally formed on an end of the insert when the insert is formed of resin, and the bent projection is used as the elastic contact portion. A bubble tube level according to claim 1. 6. A mounting hole for inserting an adjusting bolt of the air bubble position correcting mechanism at a predetermined position of the container, and the adjusting bolt is inserted into the inserting body with a head of the adjusting bolt being locked in the mounting hole. 6. A resilient pressure degree of the resilient contact portion of the insertion body with respect to the inner surface of the container is changed by screwing the screw hole into a screw hole provided on the inner surface of the container. A bubble tube type level according to 4. 7. The reference surface is formed on a bottom surface of the container,
The window hole is formed on the side surface or the front surface of the container, a mounting hole for inserting the adjustment bolt of the bubble position correcting mechanism is provided at a predetermined position on the upper surface of the container, and the adjustment bolt is inserted from the mounting hole. The screw is screwed into the screw hole provided in the insertion body held by the resilient contact portion in the container, and the resilient pressure of the resilient contact portion is changed according to the degree of screwing, thereby inserting the insert. The bubble position adjusting mechanism is configured so as to be fixed in the vessel and to slightly change the fixing posture of the insert and the bubble tube measuring unit fixed to the insert, thereby correcting the bubble position of the bubble tube measuring unit. The bubble tube level according to any one of claims 1 to 6, characterized in that: