JP5120974B2 - Level - Google Patents

Description

The present invention relates to a level used for construction work such as concrete block products such as architecture, civil engineering, and landscaping.

The level that has been widely used in the past when loading concrete blocks, etc., is the function of the level only. Therefore, in order to load the blocks, etc., it is necessary to install a standard water thread and fix it in addition to the level. It was. Therefore, multiple devices are used properly. Further, since the conventional tool for stretching the water yarn is fragile, the distance to be stretched is narrow, and the yarn tensioning operation is generally performed frequently.

Japanese Utility Model

  The present invention integrates the function of a level and the function of stretching a water thread that serves as a reference for stacking concrete blocks, etc., thereby simplifying the proper use of multiple devices and preventing work interruption due to loss, etc. It is an object of the present invention to provide a level that can efficiently load concrete blocks and the like by extending the distance over which the reference yarn is stretched.

  In order to solve the above problems, the present invention employs the following configuration. That is, the spirit level according to claim 1 is formed by integrating protrusions provided on both ends of the upper surface of the spirit level body and a spool portion for easily winding water thread into the lower level body body, which can be easily fixed to the concrete block. Provided.

  In the level according to claim 2, the surfaces of the protrusions facing each other are rough and curved.

  The spirit level according to claim 3 is formed on the lower surface of the bobbin winding portion and has a groove traversing the spirit level body.

  The spirit level according to the present invention as set forth in claim 1 can be placed on the upper surface of a concrete block or the like so as not to move easily because of having the protrusion. In addition, since the bobbin part around which the water thread can be wound is provided at the lower part of the level body, it is not necessary to prepare another device as in the prior art, and a simple construction environment is prepared.

The level according to the second aspect of the present invention can exhibit two effects and achieve a stable construction progress by making the surfaces of the protrusions facing each other rough and curved.
One is that when it is placed so as not to move on the top surface of a concrete block or the like, the curved surface of the projection and the contact surface of the concrete block or the like become one point. At the same time, the position accuracy of the reference yarn is increased by feeding the water yarn from this one point, and the same point can be easily obtained.
The other is a rough and curved surface. When tension is applied to the reference yarn and the reference yarn is stretched, there is a possibility of sliding in the level, and stability is obtained with great resistance. There is.

  The spirit level according to the present invention described in claim 3 is located on the lower surface of the spool portion, and by forming a groove transverse to the spirit level main body, the curved surface of the protruding portion on the opposite side of the water thread fed out using this groove It was easy to turn along the corner of the upper surface of the level body, and the work effect was enhanced by simply ensuring high accuracy of the reference position of the reference thread.

FIG. The perspective view before use of the present invention. The perspective view which shows the use condition of this invention. The partial detailed perspective view which shows a use condition.

Hereinafter, an embodiment of the present invention will be specifically described with reference to FIG.
2 is a level body, and 3 is a protrusion, which is formed at both ends of the upper surface of the level body 2 and can be easily fixed by installing the protrusion 3 so as to straddle the inside and outside of the block. Furthermore, the surfaces 4 of the protrusions 3 facing each other are rough and curved. Further, since the protruding portion 3 protrudes, the protruding portion 3 is a portion that is susceptible to impact such as collision and friction in handling. For this reason, it is necessary to ensure sufficient strength. Therefore, it is integrated.
Reference numeral 5 denotes a bobbin, which is integrally provided at the lower part of the level body 2 and has a concave surface processed on the front rear surface and both side surfaces to facilitate winding of the water yarn 16. This concave surface processing is intended to reduce the weight and save resources when using metal, plastics, wood, etc. as the constituent parts of the level, and when the water thread 16 is wound around this part, It also serves to prevent the water thread 16 from protruding beyond the level body 2. In addition, there are many cases where they are stored and transported together with other devices when moving on the construction site, and contact with other devices is inevitable. At this time, if the water thread 16 protrudes greatly from the level body 2, there is a risk that the strength of the tensile force will be significantly reduced due to scratching or abrasion of the water thread 16 due to breakage or friction of the water thread 16. It is formed for the purpose of prevention.
Reference numeral 6 denotes a groove, which is provided on the lower surface of the bobbin winding 5 so as to cross the level body 2 and is provided at a position corresponding to a position directly below the curved surface 4 of the projection 3. The groove 6 is provided so that the water thread 16 can be easily fed out as a reference thread 16 at an accurate position. By providing the groove 6, the curved surface 4 of the protrusion 3 and the level body 2 can be easily and accurately provided. The water thread 16 can be fed out along the top corner. On the other hand, it is conceivable to feed the water thread 16 from the bobbin portion 5 to the protrusion 3 and feed it out from the curved surface 4 without providing the groove 6, but along the curved surface 4 of the protrusion 5 and the corner of the upper surface of the level body 2 In addition, the water thread 16 is unwieldy because it requires a great deal of attention and delicate handling and lacks the reliability of on-site handling accuracy.
10 indicates a level unit for horizontal use, which is a general off-the-shelf finished product that already has a bubble tube built in, and has a horizontal level installation space 8 and a horizontal level check opening 9 for installation in the level unit body 2. By applying, it can be seen not only from the upper surface but also from the front and rear surfaces, and is fixed using the striation 11 and the stopper 12. In this case, the use of the strip 11 is solved by using the spiral strip 11 so that the horizontal measurement error due to long-term use can be adjusted.
13 is a vertical level, and a general off-the-shelf bubble tube is used, and a vertical level installation opening 14 is drilled from the upper part of one of the projections 3 so that the vertical level 13 can be seen visually. After a vertical level confirmation opening 7 penetrating from the front surface to the rear surface of 3 is drilled, the vertical level 13 is inserted from the vertical level installation opening 14 and fixed.
16 is a water thread, and it is assumed that a general commercial product is used.
Reference numeral 15 denotes a recess which is provided on the lower surface of the spirit level body 2. We aim to reduce the level of the spirit level and save resources.

FIG. 2 shows a state immediately before use using a pair of spirit levels of the present invention. First, prepare a pair of levels, wind an appropriate amount of water thread 16 around the spool 5 of one level, and then add the same amount of water thread 16 to the other level. Wrap around. As a result, the two spirit levels are connected by the water thread 16. From this state, slightly pull out the water thread 16 of the spool 5 of one level, and turn it to the opposite side through the groove 6, and pull it out along the curved surface 4 of the projection 3 and the corner of the upper surface of the level 2 The same operation was performed on the other level.
The two spirit levels are always connected by a single water thread, and maintaining this state of being used as a pair reduces the dissipation of the equipment.

FIG. 3 is a perspective view showing a use state in which concrete blocks are stacked using the level of the present invention. The process up to this state will be described.
From the state of the concrete block 塀 17 stacked about two levels, the block 18 is installed using a level. When the installation is completed, the water thread 16 wound around the level is drawn out by the procedure as described above, and the leveling part 3 is directed downward to the upper end of the block 18, and the protrusion 3 crosses the block 18 To fix. At this time, the level is inclined in the direction in which the reference yarn 16 is fed out.
Next, the other level 1 is held and the water thread 16 wound around the yarn winding section 5 is fed out to the position of the opposing block 19 and the block 19 is installed using the level that has been brought. After the block 19 is installed, the level 16 is fed or wound up to apply the necessary tensile force to the reference yarn 16, and the level is placed on the upper end of the block 19 in the same manner as the block 18. At this time, the spirit level bears a load of half of the tensile force of about 3.5 kg to 10 kg. In order to cope with this load, the curved surface 4 is made rough so that the stability increases and it can be used with peace of mind.
Thereafter, when the blocks are stacked in the space stretched by the reference yarn 16, the reference yarn 16 is equal to the reference position of the protruding corners of the blocks 18 and 19. Accordingly, the long side direction of the block may be adjusted so as to be along the reference yarn 16, and the short side direction may be adjusted and installed so as to be aligned with the short side of the block 18 or 19 that has already been installed. Thereafter, the same operation is repeated, and this operation is repeated up to a predetermined number of stacked stages. The same applies to the case of extending further sideways.

FIG. 4 is a partial detailed perspective view of the use state in which the water level is wound around and used as a reference yarn by using the level of the present invention.
The water thread 16 of the level is rotated from the bobbin portion 5 through the groove 6 to the other side, and is drawn out and fixed along the curved surface 4 of the projection 3 and the corner of the upper surface of the level body 2. If the reference thread 16 passes along the curved surface 4 of the protrusion 3 and the corner of the upper surface of the level body 2, it will be along the upper corner of the block 18, and the accuracy of the position of the reference thread 16 is high. It can be said that it is also important because it leads to the beauty of the construction.
As for the position of the reference yarn 16, when the level is placed on the block 18 and fixed, the contact surface between the curved surface 4 and the block 18 is one point. Similarly, the water thread 16 passes through the contact surface and at the same time leaves the curved surface 4 and heads toward the opposing block 19. This one point where contact and separation are performed at the same time is an accurate and reliable part. Even in the block 19, the position of the reference yarn 16 with high accuracy can be determined through the same process.

1 Level
2 Level body
3 Protrusion
4 Curved surface
5 Bobbin
6 groove
7 Vertical level opening
8 Horizontal level unit installation space
9 Horizontal level check opening
10 Horizontal level unit
11
12 Stopper
13 Vertical level
14 Vertical level installation opening
15 depression
16 Water thread
17 Concrete block
18 Concrete block A
19 Concrete block B

Claims (4)

A spirit level with protrusions with curved surfaces facing each other at both ends of the upper surface of the spirit level body, and a bobbin portion integrally provided at the bottom of the spirit level body The level according to claim 1, wherein the surfaces of the protrusions facing each other are roughened .       2. The spirit level according to claim 1, wherein a groove is formed on a lower surface of the pincushion portion and traverses the spirit level main body. 2. The spirit level according to claim 1, wherein the bobbin portion has a configuration in which concave processing is performed on both side surfaces of the front rear surface of the lower part of the level body.

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