JP6633919B2 - Level - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a level capable of attaching a contour mark for drilling a square hole having a standardized size, such as an outlet installation hole or a power switch hole, on a wall surface in electric work or building work. It is.

  Conventionally, as this type of level, there is, for example, one shown in FIGS. This level can greatly increase the work efficiency when drilling square holes whose dimensions are standardized such as outlet installation holes and power switch holes on the wall. (Patent Document 1).

  The level 11 has a front surface 11a having a short dimension of 50 to 55 mm, a longitudinal dimension of 95 to 100 mm, and a transparent synthetic resin rectangular body having a required thickness. Of the magnet M is fixed. Transparent bubble tube portions 12 for horizontal and vertical position measurement are arranged in the level body 11 in directions perpendicular to each other along the longitudinal direction and the short dimension direction. In each of the bubble tube portions 12, holes 12a whose center portions are slightly swelled are formed in the level body 11 along the longitudinal and short directions. An annular line 13 serving as a mark is formed, and the inside thereof is filled with a liquid L leaving bubbles B, and is sealed with a stopper 14.

  To attach a contour mark for drilling a square hole whose dimensions are standardized such as an outlet installation hole or a power switch hole on a wall surface using a level having such a configuration, the level body 1 must be horizontally oriented. In this case, the vertical dimension of the front face 1a is 50 mm or 51 mm, and the longitudinal dimension is 95 mm. It is stated that by adopting such numerical dimensions, an outline mark for forming an outlet hole can be appropriately large using the outer peripheral edge thereof.

  In order to attach the contour mark for forming the outlet hole to the wall surface, as shown in FIG. 15, the level is abutted at a predetermined position on the surface material 15 of the wall so that the longitudinal direction is vertical, and the wall is horizontal. If the bubble B of the bubble tube part 12 is adjusted so as to be located in the middle of the annular lines 13 and 13, it can be confirmed that the bubble tube part 12 is horizontal, and the 51 mm side of the level is horizontal. , 95 mm are vertical. Therefore, if the outline of the level body 11 at this time is transcribed on a wall surface, the position at which the rectangular hole having a length of 95 mm and a width of 51 mm will be accurately marked.

JP-A-9-218037

  In order to attach a contour mark for forming an outlet hole to a wall surface by using the above-mentioned conventional level, as shown in FIG. 15, an appropriate portion of the front surface 11a of the level body 11 is pressed with a finger, or The level body 11 is positioned on the wall by holding the periphery of the body 11 with a finger.

  However, the level body 11 is made of a transparent synthetic resin, and its front surface 11a is smooth. Therefore, simply pressing an appropriate portion of the front surface 11a with a finger makes the pressed finger slippery, and There is a problem that the level main body 11 slides and moves in accordance with the slip, and the level main body 11 cannot be accurately positioned on the wall surface.

  Further, when the periphery of the level body 11 is held by a finger, the finger held by the finger becomes an obstacle when the contour mark is attached, so that the level body 11 must be changed. There was a problem that it could shift.

  Therefore, an object of the present invention is to solve the problems of the above-described conventional level, and to form a square hole whose dimensions are standardized such as an outlet installation hole or a power switch hole on a wall surface. When making an outline mark, the level body is easy to hold down and the finger that holds it is hard to slip, making the level body also difficult to slide and moving, eliminating the need to change the level body and displacing the position at that time An object of the present invention is to provide a level that can prevent the level body from being accurately positioned on the wall surface.

  Therefore, the spirit level of the present invention is provided with a bubble moving portion 2 along a short direction or a longitudinal direction inside a rectangular parallelepiped level body 1 made of transparent synthetic resin, and a finger is inserted into the level body 1. A part 3 is provided.

  Further, in the level of the present invention, a bubble moving portion 2 is provided in a rectangular parallelepiped level main body 1 made of a transparent synthetic resin along a short direction and a long direction in directions perpendicular to each other. A finger insertion section 3 is provided on the level body 1.

  In the spirit level of the present invention, the thickness of the level main body 1 is 1 to 13 mm.

  In the spirit level of the present invention, the inner side surface 3a of the finger insertion portion 3 is inclined from the front wall surface 1a to the back wall surface 1b of the level main body 1 so that the inclination angle α becomes an acute angle.

  In the spirit level of the present invention, the finger insertion portion 3 is formed as a through hole penetrating from the front wall surface 1a to the back wall surface 1b of the level main body 1 and at two positions at opposing upper and lower portions of the level main body 1. It is assumed to be provided in.

  In the spirit level of the present invention, the bubble moving section 2 is provided near any one of the upper, lower, left and right side walls 1c, 1d, 1e, and 1f of the level main body 1.

  The spirit level according to the present invention is configured as described above, and is used to form an outline mark for drilling a square hole whose dimensions are standardized, such as an outlet installation hole or a power switch hole, on a wall surface. In addition, by hooking a finger on the finger insertion portion 3 provided on the level body 1 and pressing the level body 1, the level body 1 is easily pressed and the pressed finger becomes less slippery, so that the level body 1 also slides. Therefore, the level body 1 can be accurately positioned on the wall surface.

  Further, in the spirit level of the present invention, when the contour mark is attached, a finger is hooked on the finger insertion section 3 provided on the level main body 1 and the level main body 1 is pressed, so that the pressed finger gets in the way. Therefore, it is not necessary to change the level main body, it is possible to prevent a positional deviation at that time, and it is possible to accurately position the level main body 1 on the wall surface.

  Therefore, the use of the level according to the present invention makes it possible to accurately and quickly apply the contour mark.

It is a perspective view showing one embodiment of a spirit level of the present invention. FIG. 2 is a front view of the level of the present invention shown in FIG. 1. FIG. 2 is a rear view of the level of the present invention shown in FIG. 1. FIG. 3 is a cross-sectional view of the level according to the present invention along line AA in FIG. 2. FIG. 3 is a cross-sectional view of the level according to the present invention along line BB in FIG. 2. FIG. 4 is a front view showing another embodiment of the level according to the present invention. FIG. 7 is a rear view of the level of the present invention shown in FIG. 6. FIG. 7 is a cross-sectional view of the level according to the present invention along line CC in FIG. 6. FIG. 11 is a front view showing still another embodiment of the spirit level of the present invention. FIG. 10 is a rear view of the level of the present invention shown in FIG. 9. FIG. 10 is a sectional view of the level according to the present invention, taken along line DD in FIG. 9. It is explanatory drawing which shows the one use state of the level of this invention. It is a perspective view showing an example of the conventional level. FIG. 14 is a front view of the conventional level shown in FIG. 13. FIG. 14 is an explanatory diagram showing one use state of the conventional level shown in FIG. 13.

  Hereinafter, embodiments for implementing a level according to the present invention will be described in detail with reference to the drawings.

  In the spirit level of the present invention, a bubble moving unit 2 for measuring verticality or horizontality along a short direction or a long direction is provided inside a rectangular parallelepiped level body 1 made of transparent synthetic resin. The finger insertion part 3 penetrating from the front wall surface to the back wall surface of the level main body 1 is provided.

  The level of the present invention shown in FIGS. 1 to 5 and FIGS. 6 to 8 has a vertical or horizontal level in a lateral direction inside a level body 1 of a vertically long flat rectangular parallelepiped made of transparent synthetic resin. A bubble moving unit 2 for measuring the degree and a bubble moving unit 2 for measuring the vertical or horizontal degree along the longitudinal direction are provided in directions perpendicular to each other, Finger insertion portions 3 penetrating the wall surface are provided at two opposing positions on the upper and lower portions of the level main body 1.

  The level of the present invention shown in FIGS. 9 to 11 is used for measuring the verticality or horizontality along a short direction inside a vertically long flat rectangular parallelepiped level body 1 made of transparent synthetic resin. And a bubble moving unit 2 for measuring verticality or horizontality along the longitudinal direction are provided in directions perpendicular to each other, and a finger penetrating from the front wall surface to the back wall surface of the level body 1 is provided. The insertion portion 3 is provided at one position above the level body 1.

  The level main body 1 has a front wall surface 1a, a back wall surface 1b, and upper, lower, left and right side wall surfaces 1c, 1d, 1e, and 1f. In order to attach a contour mark for forming an outlet hole to the wall surface, this dimension is set to 50 mm, a longitudinal dimension is set to 90 to 100 mm, and to attach a contour mark for forming a standard outlet hole to the wall surface, the dimension is set to 95 mm. The thickness is set to 1 to 13 mm, preferably 3 to 9 mm in order to reduce the weight of the level main body 1 or to make it easier to press the level main body 1 against a wall surface in combination with the finger insertion section 3 described later. However, these dimensions are not limited.

  The level body 1 has a center hole H for making the contour mark extending therethrough from the center of the front wall surface 1a to the center of the back wall surface 1b. Good. Further, the level main body 1 may be provided with a scale S for dimension measurement at least at edges of the front wall surface 1a or the back wall surface 1b which are orthogonal to each other, if necessary. The level body 1 is provided with a magnet M as necessary, and the exposed surface of the magnet M is flush with one of the upper, lower, left and right side walls 1c, 1d, 1e, and 1f. , Which are buried inside the level body 1 from the side wall surface thereof. Although the magnet M is a column-shaped magnet, it may be a button-shaped magnet, a plate-shaped magnet, or the like. Instead, it can be directly adhered to the side wall surface.

  The bubble moving section 2 is formed from the back wall surface 1b of the level body 1 to the inside, and the space Sa of the inner part and the space Sb of the outer part are connected to each other. The space Sa is filled with the liquid L while leaving the bubbles B, and the lid 4 made of synthetic resin is fitted into the outer space Sb to seal the inner space Sa. Further, the bubble moving section 2 is provided with annular lines K, K serving as marks for confirming verticality or horizontality on both sides of the central portion.

  The bubble moving section 2 includes upper and lower left and right side walls 1c, 1d, and 4b of the level main body 1 to facilitate placement of a finger insertion section 3 described later inside the level main body 1 and to facilitate viewing of the bubble moving section 2. Preferably, it is provided near one of 1e and 1f. In addition, the bubble moving section 2 is provided with a bubble tube extending from the upper wall surface 1c, the lower wall surface 1d, the left wall surface 1e, or the right wall surface 1f of the level body 1 to the inside thereof, and the liquid L leaving bubbles B in the bubble tube. And the level body 1 can be provided by other appropriate means such as sealing with a stopper made of synthetic resin or the like.

  The finger insertion part 3 is a recess formed by recessing from the front wall surface 1a to the back wall surface 1b of the level body 1 or a through hole penetrating from the front wall surface 1a to the back wall surface 1b of the level body 1. 5 to 5 and FIGS. 6 to 8, the through holes are provided at two opposing positions in the upper and lower portions of the level main body 1. In the ones shown in FIGS. Through holes provided at one location. In order to make the inner surface 3a inclined as described later, the finger insertion portion 3 is preferably formed as a through hole on a processing surface or the like.

  The finger insertion part 3 has a planar shape of a rectangle with rounded corners, and in FIGS. 1 to 5 and FIGS. 6 to 8, the opposed inner side surfaces 3 a of the two finger insertion parts 3 are leveled. From the front wall surface 1a to the back wall surface 1b of the main body 1, the inclination angle α is inclined so as to be an acute angle. In the one shown in FIGS. From the front wall surface 1a to the back wall surface 1b of the level body 1 and is inclined such that the inclination angle α is an acute angle. In addition, the inclination angle α of the inner side surface 3a of the finger insertion portion 3 is not limited, but is set to 45 to 85 degrees, preferably 55 to 65 degrees, so that the finger can be easily hooked on the finger insertion portion 3. And the fingers are improved. Further, in order to further improve the finger contact when the finger is hooked on the finger insertion portion 3, the inner side surface 3a is inclined after leaving a slight non-inclined portion 3b having a width of 1 to 2 mm on the inner side surface 3a. It may be a thing.

  In addition, the finger insertion portion 3 has the same shape as that shown in FIGS. 1 to 5 provided in two places at the upper and lower portions of the level main body 1, but has the upper portion shown in FIGS. The lower part is larger than the lower part. As described above, in the case where the lower portion is larger than the upper portion, if the enlarged lower finger insertion portion 3 is used for the thumb, the thumb can be easily inserted into the finger insertion portion 3 and hooked. , And is easy to use. It is preferable that the finger insertion portion 3 has a rectangular planar shape, since it is easy to press the long side of the finger insertion portion with a finger. However, the finger insertion portion 3 may have a circular shape, an elliptical shape, or the like, and is not limited.

  Using the level of the present invention configured as described above, to attach a contour mark for drilling a square hole whose dimensions are standardized such as an outlet installation hole or a power switch hole on a wall surface, It is preferable to use the level body 1 having a dimension in the short direction of 50 mm, a dimension in the longitudinal direction of 95 mm, a thickness of 6 mm, and an inclination angle α of the inner side surface 3a of the finger insertion portion 3 of 60 degrees.

  To attach the contour mark for forming the outlet hole to the wall surface using such a level, an index finger is hooked on the finger insertion portion 3 at the upper position of the level main body 1 as shown in FIG. The thumb is hooked on the finger insertion section 3 of the level holder 1 and the level body 1 is held, and is pressed at a predetermined position on the wall surface so that the longitudinal direction of the level body 1 is vertical. Then, if the bubble B of the bubble moving unit 2 for confirming the level is adjusted so as to be located in the middle of the annular line K, it can be confirmed that the bubble moving unit 2 has become horizontal. The direction is horizontal and the longitudinal direction is vertical. Therefore, if the outline of the level body 1 at this time is transcribed on a wall surface, a position where a rectangular square hole having a length of 95 mm and a width of 50 mm will be accurately marked. In the case where the finger insertion portion 3 is provided at one position above the level main body 1, an index finger is hooked on the finger insertion portion 3, and a thumb is hooked on the lower wall surface 1d of the level main body 1. And press it down at a predetermined position on the wall surface so that the longitudinal direction of the level body 1 is vertical.

  Therefore, in the level according to the present invention, the level body 1 is easy to press and the pressed finger is hard to slip, so that the level body 1 is hard to move without slipping, and the level body 1 is accurately positioned on the wall surface. Can be.

  Further, in the level of the present invention, the finger holding down the level main body 1 does not interfere, so that it is not necessary to hold the level main body 1 and displacement at that time can be prevented, and the level main body 1 can be mounted on the wall surface. It can be positioned accurately.

  Therefore, the use of the spirit level of the present invention makes it possible to accurately and quickly apply the contour mark for forming the outlet hole.

DESCRIPTION OF SYMBOLS 1 level main body 1a Front wall surface 1b Back wall surface 1c Side wall surface 1d Side wall surface 1e Side wall surface 1f Side wall surface 2 Bubble moving part 3 Finger insertion part 3a Inner surface α Inclination angle

Claims (6)

  A bubble moving portion (2) is provided along a short direction or a long direction in a rectangular parallelepiped level body (1) made of transparent synthetic resin, and a finger insertion section (3) is provided in the level body (1). Level).   Inside a rectangular parallelepiped level body (1) made of transparent synthetic resin, a bubble moving portion (2) is provided in a direction orthogonal to each other along a short direction and a long direction, and the level body (1) is provided. A level provided with a finger insertion part (3).   3. The level according to claim 1, wherein the level body has a thickness of 1 to 13 mm.   The inner surface (3a) of the finger insertion portion (3) is inclined from the front wall surface (1a) to the back wall surface (1b) of the level body (1) so that the inclination angle (α) becomes an acute angle. The level according to claim 1 or 2, wherein the level is provided.   The finger insertion portion (3) is a through hole penetrating from the front wall surface (1a) to the back wall surface (1b) of the level body (1), and opposing positions of upper and lower portions of the level body (1). The level according to claim 1 or 2, wherein the level is provided at two locations. The said bubble moving part (2) shall be provided in the vicinity of any of the upper, lower, left and right side walls (1c, 1d, 1e, 1f) of the level main body (1). Level as described.

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