JP3511497B2 - Bubble tube level - Google Patents

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 bottom level of a horizontal rectangular tube-shaped body is used as a reference surface to be applied to a measurement surface, and a bubble tube type level instrument provided with a bubble tube type measuring section on the upper surface or side surface (front surface) of this body is known. However, for example, the bubble tube type measurement unit provided on the side surface of the body to measure the verticality of the wall surface by placing the body on the wall surface, the bubble tube type measurement unit is fitted and fixed to the insert body to be inserted into the body body. The insert is inserted and fixed in the body.

Further, in order to correct the deviation of the bubble position due to this attachment, a bubble position correcting mechanism for finely correcting the fixed posture of the insert is provided.

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

That is, the bubble tube type measuring unit is provided on the front of the body 21.
Window hole 23 through which 22 is exposed, fixing hole 24, and bubble position correction mechanism
Mounting holes 27 for inserting the adjusting bolts 26 of 25 are provided.

The insert 28 to be inserted into the body 21 is a resin molded product, and a fitting hole 30 is provided at the center thereof, and a transparent resin in which a bubble tube 29 is embedded and molded in the fitting hole 30. The bubble tube type measuring unit 22 made of is configured to be fitted and fixed. Further, one end portion of this insert body 28 communicates with the fixing hole 24, and
A fulcrum hole 34 for fixing one end side of the insert body 28 by engaging the attachment fulcrum tube 31 is provided, and the elastic member 32 (coil spring) is interposed at the other end portion of the insert body 28 so that the attachment hole 27 is formed. A screw hole 33 into which the adjusting bolt 26 to be inserted from above is screwed is provided.

Therefore, the bubble tube type measuring portion 22 is fitted and fixed in the fitting hole 30 of the insert body 28 so that the bubble tube 29 is oriented in a predetermined direction, and the insert body 28 is opened at the end portion of the body 1. The fitting fulcrum tube 31 is fitted and locked by aligning the fulcrum hole 34 with the fixing hole 24, and the adjusting bolt 26 is screwed into the screw hole 33 to fix the insert body 28. If the bubble 35, which must be centrally located if the wall was vertical, was misaligned during assembly, the adjusting bolt 26 is screwed in to correct this. By this screwing, the head of the adjusting bolt 26 is locked in the mounting hole 27, and the degree of screwing of the insert 28 into the screwing hole 33 is changed, whereby the insert 28 is mounted on the opposite side of the mounting fulcrum tube. The elastic member 32 is expanded and contracted with 31 as a fulcrum, and the posture thereof is slightly rotated to correct the position of the bubble 35.

[0008]

However, in the conventional structure as described above, although the insert 28 is resin-molded, the elastic member 32 for adjusting the position of the bubble tube and the fulcrum for fixing one end as the pivot fulcrum. A hole 34 and a mounting fulcrum tube 31 are required, and in addition to the window hole 23 and the mounting hole 27 for the adjusting bolt 26, the fixing hole 24 must be formed at a predetermined position in the body, and the number of parts is large, so Is not easy either.

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

Unlike the conventional mounting structure, the present invention can realize a bubble position correcting mechanism without using any fulcrum portion mounting structure such as the elastic member 32, the fixing hole 24, the fulcrum hole 34, and the mounting fulcrum tube 31. The purpose of the invention is to provide an epoch-making bubble tube type level device that can reduce the number of parts and facilitate manufacturing, excels in mass productivity, and can reduce cost.

Furthermore, the positioning work of the insert body within the body becomes extremely easy, and even when the window hole is located away from the end opening portion of the body body, that is, it is inserted into the end closing member of the body body. Even when the insert body is pushed into the center of the body and moved instead of connecting the body continuously, it is easy to move and position the insert body, and the adjustment bolt and the screw hole of the insert body are screwed together. It is an object of the present invention to provide an epoch-making bubble tube level in which the work of fixing the insert body to the position of the window hole can be performed extremely easily and the efficiency of the assembling work is significantly improved.

Another object of the present invention is to provide an extremely epoch-making bubble tube level in which the position of the bubble can be surely corrected by adjusting the screw of the adjusting bolt even if only one adjusting bolt is provided as in the conventional case.

[0013]

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

An insert body 7 having a bubble tube type measuring section 5 is inserted into a body 3 having a reference surface 2 that abuts against the measurement surface 1,
The insertion tube 7 is fixed at a position where the bubble tube type measuring unit 5 can be visually recognized from the window hole 4 provided in the vessel 3, and the insertion body 7 is finely adjusted with respect to the vessel 3 to make bubbles 6 The measuring surface 1 is provided with a bubble position correcting mechanism 8 for correcting the position.
In the bubble tube level, which measures the verticality or levelness of the measuring surface 1 by the position of the bubble 6 of the bubble tube measuring unit 5 when the reference surface 2 is contacted with the An elastic contact portion 9 for elastically contacting the inner surface of the body 3 is provided by integral molding, and a screw hole 8B into which the adjusting bolt 8A provided on the body 3 is screwed is provided.
By changing the elastic pressure degree of the elastic pressure contact portion 9 of the insert body 7 by screwing, the fixing attitude of the insert body 7 and the bubble tube type measuring section 5 fixed to the insert body 7 is slightly changed, and the bubble tube The bubble position adjusting mechanism 8 is configured so that the position of the bubble 6 of the formula measuring unit 5 can be corrected , and
Structure so that the insert 7 can be inserted from the end opening
However, the elastic contact portion provided on the insert 7 during this insertion
9 so as to elastically contact the inner surface of the hollow portion 3A of the body 3
And the insert 7 is press-fitted into the hollow portion 3A of the body 3.
You can insert the ride and move the insert 7 to the specified position.
And the elastic force is applied to the inner surface of the hollow portion 3A of the body 3 which faces the hollow portion 3A.
The elastic pressure contact portion 9 faces the insertion body 7 so as to abut.
The present invention relates to a bubble tube level, which is characterized by being provided at a position .

Further, according to claim 1, wherein said elastic pressure contact portion 9 at both ends of the insert 7 is provided, characterized by providing the oppression the screwing holes 8B to one side toward the position between the contact portion 9 The present invention relates to the bubble tube level.

Furthermore, the claims when the insert 7 is molded by resin, integrally molded bent protrusion at an end portion, characterized in that the bent protrusion was the repression abutment 9
The present invention relates to the bubble tube level according to any one of 1 and 2 .

Further, a mounting hole 8C into which the adjusting bolt 8A of the bubble position correcting mechanism 8 is inserted is provided at a predetermined position of the body 3, and the head of the adjusting bolt 8A is locked in the mounting hole 8C. By screwing the adjusting bolt 8A into the screw hole 8B provided in the insert body 7, the insert body 7 with respect to the inner surface of the body 3 is inserted.
The bubble tube type level according to any one of claims 1 to 3 , wherein the elastic pressure contact portion 9 is configured to change the degree of elastic pressure.

The reference surface 2 is formed on the bottom surface of the body 3, the window hole 4 is formed on the side surface or the front surface of the body 3, and the bubble position is provided at a predetermined position on the upper surface of the body 3. A mounting hole 8C into which the adjusting bolt 8A of the correction mechanism 8 is inserted is provided, and the adjusting bolt 8A is inserted through the mounting hole 8C to the insertion body 7 held by the elastic pressure contact portion 9 in the body 3. It is screwed into the screw hole 8B provided, and the degree of elastic pressure of the elastic pressure contact portion 9 is changed by the degree of screwing,
The insertion body 7 is fixed in the body 3, and the fixing posture of the insertion body 7 and the bubble tube type measurement unit 5 fixed to the insertion body 7 is slightly changed to correct the position of the bubble 6 of the bubble tube type measurement unit 5. The bubble-tube leveler according to any one of claims 1 to 4 , wherein the bubble-position adjusting mechanism 8 is configured so as to be capable.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out the present invention (how to carry out the invention) will be briefly described with reference to the drawings showing the operation and effect thereof.

According to the present invention, by adjusting the screw by screwing the adjusting bolt 8A into the screw hole 8B of the insert body 7 inserted into the body 3, the elastic contact provided on the insert body 7 by integral molding. The degree of elastic pressure of the portion 9 on the inner surface of the body 3 changes, and the fixed posture of the insert body 7 inside the body 3 changes slightly, which changes the posture of the bubble tube type measuring portion 5 fixed on the insert body 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 conventional spring member and without the need for a fulcrum structure, the number of parts can be reduced, and the assembling process can be greatly simplified. It will be a bubble tube level that is extremely practical.

Further, the adjusting bolt 8 of the bubble position correcting mechanism 8
A, before the screw fixing by the screw hole 8B, that is, when the insert 7 is inserted into the body 3, the elastic contact portion 9 of the insert 7 is already elastically contacted with the inner surface of the body 3. By doing so, it becomes extremely easy to move and position the insert 7 to a predetermined position.

That is, the window member 4 is provided not at the end portion of the body 3 but at the central portion thereof, instead of integrally forming the closing member 10 for closing the end opening portion of the body 3 and the insert 7. When it is desired to provide the bubble tube type measurement unit 5 on the center side of the body 3, the insertion body 7 is inserted into the hollow portion 3A from the end opening portion of the body 3 for movement setting. In this case, since the elastic contact portion 9 of the insert body 7 is elastically contacted with the inner surface of the hollow portion 3A of the container body 3, the insert body 7 is press-fitted and slid in the hollow portion 3A. It becomes very easy to set the movement.

In other words, the bubble tube type measuring unit 5 and the body 3
The insertion body 7 is moved to a position where the screw hole 8B and the mounting hole 8C coincide with each other, 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 is easy, and since the temporary contact is held even after the movement due to the elastic pressure contact by the elastic pressure contact portion 9, the adjusting bolt 8A can be easily screwed, and the assembling work efficiency is extremely high. It will be improved.

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

Further, elastic pressure contact portions 9 are provided on the left and right sides of the insert body 7, and screw holes 8 are provided near the one end side between the left and right elastic pressure contact portions 9.
By providing B and screwing the adjusting bolt 8A, there is no need to use a spring material as a separate member as in the conventional case, and there is no need to provide the adjusting bolts 8A in two places on the left and right sides. Without using a spring member as a separate member, the elastic pressure degree of the left and right elastic pressure contact portions 9 is changed by the screwing of the adjusting bolt 8A, and a good posture change adjustment can be made with only one adjusting bolt 8A. Therefore, the bubble position can be corrected satisfactorily.

[0027]

Embodiments of the present invention will be described with reference to the drawings.

According to the present invention, the bottom surface of the horizontal rectangular hollow cylindrical body 3 is used as the reference surface 2, and the circular window hole 4 for exposing the vertical bubble tube type measuring portion 5 on the side surface (front surface) of the body 3. To form
The bubble position correcting mechanism 8 is provided at a predetermined position on the upper surface of the body 3.
A mounting hole 8C for inserting the adjusting bolt 8A is provided.

The insert 7 inserted into the body 3 from the end opening of the body 3 which is closed by the closing member 10 is made of resin. A circular transparent resin bubble tube type measuring unit 5 in which a bubble tube is embedded in the hole 11 is fitted and fixed. The resin-molded insert body 7 is integrally provided with an elastic contact portion 9 that elastically contacts the inner surface of the hollow portion 3A of the container body 3, and a screw hole 8B is provided near one end.

The screw hole 8B may be a screw hole, but in this embodiment, it is made of resin, and is a hole which is fixed by screwing the adjusting bolt 8A.

Specifically, when the insert 7 is molded from resin, a plate-shaped bent protrusion is integrally formed at the end, and this bent protrusion serves as the elastic pressure contact portion 9.

Further, in this embodiment, elastic pressure contact portions 9 are provided at both upper end portions of the insert body 7, and the screw holes 8B are provided at positions near one side between the elastic pressure contact portions 9, and further the body body is provided. Resilient pressure contact portions 9 are also provided at both lower end portions of the insert 7 so as to elastically contact the inner surfaces of the hollow portion 3A facing each other.

Therefore, in this embodiment, the hollow portion 3A of the body 3 is
The insert 7 is inserted from the end opening of the insert 7, and at this time, the elastic contact portions 9 of the insert 7 at the four positions are hollow portions 3A of the container 3.
It is configured to elastically contact the upper and lower inner surfaces of the insert body 7, and the insert body 7 is press-fitted into the hollow portion 3A of the body 3 by slide insertion.
Is configured so that it can be moved and set to a predetermined position.

Therefore, the elastic contact portion 9 of the insert 7 is connected to the container 3
When the insert 7 is pressed against the inner surface of the hollow portion 3A of the
Since the press-fitting slide movement is performed in the hollow portion 3A, the movement setting to a predetermined position becomes very easy.

In other words, the vertical bubble tube type measuring unit 5
Is aligned with the window hole 4 of the body 3, and the screw hole 8B and the mounting hole 8C
Move and set the insert 7 to the position where
It is necessary to insert the adjusting bolt 8A from the above and screw it into the screwing hole 8B, but this movement setting is easy, and the elastic contact by the elastic contact portion 9 makes it possible to temporarily hold the movable bolt after moving. The screwing operation of the adjusting bolt 8A becomes easy, and the assembling work efficiency is significantly improved.

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

Further, in the present embodiment, by changing the elastic pressure degree of the elastic pressure contact portion 9 of the insert body 7 by screwing the adjusting bolt 8A provided on the body 3, the insert body 7 and the bubbles fixed to the insert body 7 are changed. The bubble position adjusting mechanism 8 is configured so that the position of the bubble 6 of the bubble tube type measuring unit 5 can be corrected by slightly changing the fixed posture of the tube type measuring unit 5.
Adjusting bolt 8A of bubble position correcting mechanism 8 at a predetermined position on the upper surface of
A mounting hole 8C for inserting the adjustment bolt 8A is provided, and the adjustment bolt 8A is screwed into a screwing hole 8B provided in the insertion body 7 while the head of the adjustment bolt 8A is locked in the mounting hole 8C. 3 is configured to change the degree of elastic pressure of the elastic pressure contact portion 9 of the insert 7 with respect to the inner surface.

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

Further, as described above, the insert body 7 has a hollow portion 3A.
In order to press-fit and slide the inside, the insertion body 7 can be moved and set to a position where the bubble tube type measuring unit 5 and the window hole 4 of the body 3 are aligned, and the screw hole 8B and the mounting hole 8C are aligned. Further, since the elastic pressure contact portion 9 temporarily retains the elastic bolt after the movement by the elastic pressure contact by the elastic pressure contact portion 9, the screwing operation of the adjusting bolt 8A becomes easy, and the assembling work efficiency is significantly improved.

Further, elastic pressure contact portions 9 are provided on the left and right sides of the insertion body 7, and screw holes 8 are provided near the one end side between the left and right elastic pressure contact portions 9.
By providing B and screwing the adjusting bolt 8A, the elastic pressure degree of the left and right elastic pressing joint portions 9 is changed by the screwing of the adjusting bolt 8A without using a separate spring material as in the conventional case. As a result, good posture change adjustment can be performed with only one adjustment bolt 8A, and good bubble position correction can be performed.

In the figure, reference numeral 12 is a finger insertion window, and 13 is a horizontal bubble tube type measuring section.

[0042]

Since the present invention is configured as described above, unlike the conventional mounting structure, the bubble position is corrected without using any fulcrum mounting structure such as an elastic material, a fixing hole, a fulcrum hole, and a fulcrum tube. A superior bubble tube that provides an epoch-making bubble tube level that can realize a mechanism, reduces the number of parts and facilitates manufacturing, has excellent mass productivity, and can also reduce costs. It becomes a formula level.

Further, according to the present invention , the positioning work of the insert body in the body becomes extremely easy, and even when the window hole is located away from the end opening of the body, that is, the end portion of the body. Not when connecting the insert to the closing member,
Even when the insert body is pushed into the center of the body and moved, the insert body can be easily moved and positioned, and since the elastic pressure is maintained even after the movement setting, the adjustment bolt and the screw hole of the insert body are screwed together. Therefore, the work of fixing the insert at the position of the window hole can be carried out very easily, and an excellent bubble tube type level can be provided which is capable of providing an epoch-making bubble tube type level with extremely improved assembling work efficiency.

Moreover, in the present invention, the press-fitting slurry is
It is easier to set the movement by id, and the movement can be set.
The temporary holding function afterwards becomes even better, and bubble position adjustment is also possible.
It is a bubble tube level that is extremely excellent, such as becoming even better.
It

Further, according to the second aspect of the present invention, even if the adjusting bolt is provided at one place as in the conventional case, the degree of elastic pressure of the left and right elastic contact portions is changed by the screw adjustment of the adjusting bolt, so that the bubble is surely generated. It becomes an extremely innovative bubble tube level that can correct the position.

Further, in the third aspect of the invention, the elastic pressure contact portion capable of easily exerting a good elastic pressure contact action can be formed, and the bubble tube type which is excellent in mass productivity and is extremely practical. Become a vessel.

[Brief description of drawings]

FIG. 1 is an explanatory perspective view of the present 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 after attachment and fixation of a vertical bubble tube type measurement unit of the present embodiment and before correction of bubble position.

FIG. 4 is an enlarged explanatory cross-sectional view of a main part of the vertical bubble tube type measuring unit according to the present embodiment after attachment and fixation and after the bubble position is corrected.

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

[Explanation of symbols]

1 measurement surface 2 reference plane 3 body 3A hollow part 4 window holes 5 Bubble tube type measuring unit 6 bubbles 7 Insert 8A adjustment bolt 8B screw hole 8C mounting hole 9 Repression contact part

Front page continuation (58) Fields surveyed (Int.Cl. ⁷ , DB name) G01C 9/24

Claims (5)

(57) [Claims] 1. An insert body having a bubble tube type measuring section is inserted into a body having a reference surface that abuts against the measuring surface, and the bubble tube type measuring section is visible through a window hole provided in the body. In addition to fixing the insert body at a position, the insert body is provided with a bubble position correcting mechanism for finely adjusting the bubble position with respect to the container body to correct the bubble position, and 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 contact portion that elastically contacts the inner surface of the container is integrally formed with the resin-molded insert. In addition, a screwing hole for screwing the adjusting bolt provided in the body is provided, and the elastic force of the elastic pressure contact portion of the inserting body is changed by the screwing of the adjusting bolt, thereby inserting the inserting body and the inserting body. The fixed posture of the bubble tube type measuring unit fixed on the The bubble position adjusting mechanism is configured so that the bubble position of the bubble tube type measuring unit can be corrected by making a small change.
And insert the insert through the end opening of the hollow part of the container.
It is configured so that it can be inserted, and the insertion body is
The elastic contact part of the contact is elastically pressed against the inner surface of the hollow part of the body.
Configured to be in contact with each other and press the insert into the hollow part of the body.
You can slide it and set the insert to the specified position.
And press-contact the inner surfaces of the hollow portion of the body facing each other.
So that the elastic contact portion is provided at a position facing the insertion body.
A bubble tube type level that is characterized by that. 2. The bubble tube according to claim 1 , wherein the elastic pressure contact portions are provided at both ends of the insertion body, and the screw holes are provided at positions near one side between the elastic pressure contact portions. Expression level. The method according to claim 3 wherein said insert upon molding the resin, integrally molded bent protrusion at an end portion, either the bent protrusion of claim 1, characterized in that the said elastic pressure contact portion Or the bubble tube level. 4. A mounting hole for inserting the adjusting bolt of the bubble position correcting mechanism is provided at a predetermined position of the body, and the adjusting bolt is inserted into the inserting body with the head of the adjusting bolt being locked in the mounting hole. by screwing the screwing holes provided in any one of claims 1 to 3, characterized by being configured to vary the suppression degree of the repression abutment of the insert against the vessel inner surface Bubble tube level. 5. The reference surface is formed on the bottom surface of the body,
The window hole is formed on the side surface or the front surface of the body, and a mounting hole for inserting the adjusting bolt of the bubble position correcting mechanism is provided at a predetermined position on the upper surface of the body, and the adjusting bolt is inserted through the mounting hole. , The elastic body is screwed into the screw hole provided in the insert body held by the elastic contact portion, and the elastic degree of the elastic contact portion is changed by the degree of screwing to insert the insert body. The bubble position adjusting mechanism is configured so as to fix the bubble position of the bubble tube type measurement unit by minutely changing the fixing posture of the insert tube and the bubble tube type measurement unit fixed to the insert body while being fixed in the body. Claims characterized by
Item 1. The bubble tube level according to any one of Items 1 to 4 .