JP3073950B2 - 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 level using a bubble tube, and more particularly to a mounting structure of a bubble tube capable of finely adjusting a mounting angle of the bubble tube.

[0002]

2. Description of the Related Art In a level using a bubble tube, a mounting member is generally mounted through a mounting hole provided on the upper surface of a body case.
For example, a transparent mounting member in which a bubble tube is buried is fitted so that the bubble tube can be visually recognized from the mounting hole. By rotating the fastening screw to attach and fix,
A configuration in which the mounting inclination of the mounting member is finely adjusted while maintaining the state in which the mounting member is fixed and fixed, and the horizontality of the bubble tube can be finely adjusted. The aim is to provide an epoch-making level that is extremely practical and can be fine-tuned.

[0003]

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

[0004] A mounting member 4 is stored and locked in a mounting storage section 3 provided with a mounting hole 2 formed in a body case 1, and a measuring bubble tube 6 is fitted in a fitting recess 5 provided in the mounting member 4. A mounting member 7 attached and fixed in a predetermined direction is fitted, and a resilient bearing portion 8 is provided at the bottom of the fitting concave portion 5 so that the mounting member 7 is resiliently supported so as to be tiltable left and right. Fastening screws 9 are disposed on the right and left sides of the member 7 so as to penetrate vertically, and the mounting member 7 is fastened and fixed to the mounting member 4. The mounting member 4 which comes into contact with the receiving portion 10 provided on the case 1 side.
Pressing and deforming the contact bottom 11 at the lower part of the
Is pressed and fixed to the case 1 under elastic pressure, and the fixing screw 9 is rotated while maintaining the elastic pressure of the contact bottom 11 of the mounting member 4 by the fixing screw 9, and With the mounting member 4 fixed to the case 1 by pressing and fixing, the mounting member 4 is resiliently restored by the elastic support portion 8.
The level of the fixed inclination is adjusted in the horizontal direction of the mounting member 7 to adjust the inclination of the measuring bubble tube 6 fixed to the mounting member 7 so as to be freely adjustable. It is related to.

[0005] A lightening portion 12 is provided below the mounting member 4.
A contact bottom 11 is formed below the lightening portion 12 so as to contact a receiving portion 10 provided on the side of the case 1, and the tip of the fastening screw 9 passes through the mounting member 7. Further, the contact bottom 11 is pressed and abutted through the lightening portion 12 to press and deform the contact bottom 11, thereby fixing and fixing the mounting member 4 to the body case 1 in an elastic pressure state. A level according to claim 1, wherein the level is configured as described above.

Further, a pair of curved plate portions 14 provided to bend and bend freely butts each other with a predetermined gap 15 therebetween and is opposed to each other. 2. The resilient bearing portion 8 is formed by integrally projecting left and right, respectively.
Item 2 relates to the level according to any one of Items 2.

The bottom plate portion below the lightening portion 12 is referred to as the abutment bottom portion 11, and the inner projecting ridge portion 13 slightly protruding toward the center in a state opposite to the middle height of the inner surface of the case 1. The end of the contact bottom 11 is formed as a receiving part
13 so as to be abutted and engaged with each other so that the abutment bottom 11 is disposed between the inner surface projecting ridges 13 in an erected state, and the center of the abutment bottom 11 is set by the tip of the fastening screw 9. The level according to any one of claims 1 to 3, wherein the contact bottom 11 is configured to be elastically deformed by being pressed downward.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention (how to implement the invention) will be briefly described with reference to the drawings, showing the operational effects thereof.

For example, the mounting member 4 is inserted into the housing case 1 through the mounting hole 2 provided on the upper surface of the housing case 1 to store and lock the mounting member 4 in the mounting storage portion 3 of the housing case 1. The fitting member 7 in which the measuring bubble tube 6 is fixed in a horizontal state is fitted in the fitting concave portion 5 provided in the reference numeral 4.

The mounting member 7 is elastically supported by a resilient bearing portion 8 provided at the bottom of the fitting recess 5 so that it can be slightly tilted left and right and slightly movable.

A fastening screw 9 is passed through the mounting member 7 on the left and right sides and screwed to the mounting member 4, and the lower end of the mounting member 4 is abutted by being pressed into contact with the tip of the fastening screw 9. 11 is pressed into contact with the receiving portion 10 provided on the case 1 side. At this time, the contact bottom 11 is pressed and deformed by the tip of the fixing screw 9, and the mounting member 4 is fixed to the body case 1 by pressing and fixing in an elastic pressure state.

When the bubble tube 6 mounted and fixed in a horizontal state so as to be visible from the mounting hole 2 of the body case 1 in this way, for example, when the reference bottom surface of the body case 1 abuts on a horizontal reference surface, When the position of the bubble in the bubble tube 6 is shifted from the position indicating horizontal (or a predetermined inclination),
The horizontality (mounting inclination) of the bubble tube 6 is finely adjusted (finely corrected).

In this case, the tightening force of the mounting member 7 with respect to the mounting member 4 is changed by directly rotating one or both of the right and left fastening screws 9 with a tool such as a screwdriver. The mounting member 7 is attached to the mounting member 4 by the restoring force of the elastic
The fixed inclination in the left-right direction fluctuates, so that the attachment inclination of the bubble tube 6 can be corrected so that the bubble shows a horizontal (or a predetermined inclination).

At this time, the mounting member 4 is fixed to the body case 1 by pressing and deforming the contact bottom portion 11 in a pressed and deformed state, so that the mounting member 4 is fixed for fine correction of the level of the bubble tube 6. Even when the screw 9 is rotated, the state where the contact bottom portion 11 is pressed and deformed remains unchanged, and only the degree of elasticity changes, and the mounting member 4 is fixed to the body case 1 by pressing and fixing. Will remain.

Therefore, the mounting member 4 is securely connected to the case 1.
Thus, the fine correction can be reliably performed while being fixed.

That is, the fixing screw 9 can be used as it is as a horizontal fine adjustment screw of the bubble tube 6, and the mounting member 4 is fixed to the body case 1 by pressing and fixing. Since the tilting adjustment of the mounting member 7 fitted to 4 can be performed, the fine adjustment can be performed reliably and accurately.

[0017]

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

A mounting hole 3 is provided by forming a mounting hole 2 for visually confirming the measurement bubble tube 6 in a state of being connected to the upper surface of a long rectangular tube-shaped metal body case 1 and to the front and rear sides thereof. It is configured to receive locking the mounting member 4 made of resin in the mounting housing portion 3 is inserted from the mounting hole 2.

The mounting member 4 has a size corresponding to the mounting hole 2 and is integrally formed with a retaining locking projection 16 for preventing the mounting member 4 from coming off when the mounting member 4 is pressed into the mounting hole 2 on the upper left and right outer surfaces. doing.

The lower part is provided with a contact bottom part 11 which is brought into pressure contact with the case 1 to be described later.

The mounting member 4 has a fitting recess 5 which can be inserted and fitted from the mounting hole 2. A screw portion 17 having a screw hole into which the screw 9 is screwed is formed.

The mounting member 7 may be inserted and fitted into the fitting recess 5 through the mounting hole 2, or the mounting member 4 in which the mounting member 7 has been fitted in the fitting recess 5 in advance. May be stored and locked in the mounting storage section 3 through the mounting hole 2.

The mounting member 7 is formed of a transparent resin, and the measuring bubble tube 6 is buried and fixed in the mounting member 7 horizontally.

In this embodiment, a lens plate 18 for enlarging and viewing is superposed on the upper part of the mounting member 7, and a phosphorescent plate 19 is disposed on the lower part.
Are also superposed.

The mounting member 7 is provided at the bottom of the fitting recess 5.
Is provided for elastically supporting the elastic member so that it can be tilted to the left and right.

In this embodiment, a pair of curved plate portions 14 which are provided so as to be able to bend and bend are abutted with each other with a predetermined gap 15 therebetween. The resilient bearing 8 is formed by integrally projecting from the left and right sides of the bottom of the recess 5.

[0027] That is, FIG. 2, FIG. 4, to form a semi-circular through-hole to the rear from the front of the bottom of the mounting member 4, as shown in FIG. 5, to form a raised part as shown in FIG. 3 By forming a slit gap at the top of the swell, the swelling elastic pressure bearing 8A composed of the curved plate portion 14 opposed to the swell via the gap 15 is integrally formed.

Therefore, in this embodiment, the mounting member 7 in which the lens plate 18 and the light storage plate 19 are overlapped with each other so as to be resiliently supported by the left and right bulging resilient support portions 8A is fitted. 9 through the left and right, respectively,
The mounting member 7 is fixedly fixed to the mounting member 4 by screwing to the mounting member 4.

When the fastening screw 9 is screwed in, the screw 17 is fastened by the engagement between the screw 17 and the screw head of the fastening screw 9. The portion 8A is elastically deformed downward and fixedly fixed in the elastic pressure state.

Accordingly, by rotating one of the fastening screws 9 to change the degree of tightening of the left and right fastening screws 9, the degree of elastic deformation of the left and right raised elastic supporting portions 8 A is changed, and the mounting member 7 is mounted. Is configured to change the fixed inclination degree.

On the other hand, in the present embodiment, the housing case 1 is brought into contact with the fixing screw 9 by pressing the distal end of the fixing screw 9 by screwing.
The contact bottom 11 of the lower part of the mounting member 4 which is in contact with the receiving part 10 provided on the side is pressed and deformed, and the mounting member 4 is fixedly fixed to the body case 1 in a state of elastic pressure.

Specifically, a lightening portion 12 is formed below the mounting member 4, and a contact bottom portion 11 that comes into contact with a receiving portion 10 provided on the side of the case 1 below the lightening portion 12. To form
The tip of the fastening screw 9 penetrates the mounting member 7, further penetrates the lightening portion 12, and presses and abuts the contact bottom 11, thereby pressing and deforming the contact bottom 11, and thereby attaching the mounting member 7. 4 is configured so as to be pressed and fixed to the body case 1 in an elastic pressure state.

Further, in this embodiment, the bottom plate portion below the lightening portion 12 is the contact bottom portion 11, and the inner surface projecting portion slightly protruding toward the center in a state of facing the middle height of the inner surface of the case 1. The portion 13 serves as the receiving portion 10, and the end of the contact bottom portion 11 abuts and locks on the inner protruding ridge portion 13, and the contact bottom portion 11 is disposed between the inner protruding ridge portions 13 in a bridged state. The center of the contact bottom 11 is pressed downward by the tip of the fastening screw 9 so that the contact bottom 11 is elastically deformed.

In this embodiment, the fixing screw 9 for mounting and fixing the mounting member 4 to the body case 1 is rotated, whereby the mounting member 4 is mounted while maintaining the fixed state. Fine adjustment of the mounting inclination of the member 7
Can be finely adjusted.

Accordingly, the bubble tube 6 is mounted and fixed in a horizontal state so as to be visible from the mounting hole 2 of the case 1.
However, for example, as shown in FIG.
When the position of the bubble in the bubble tube 6 is shifted from the position indicating horizontal when the reference bottom surface is brought into contact, fine adjustment (fine correction) of the level (mounting inclination) of the bubble tube 6 is performed. become.

In this case, one or both of the right and left fastening screws 9 are rotated by a tool such as a screwdriver. For example, as shown in FIG. 5, one contact screw 9 is slightly loosened from the state in which the abutment bottom portion 11 is sufficiently elastically deformed and the mounting member 7 is tightened with respect to the mounting member 4. By the movement, the tightening force of the mounting member 7 on the mounting member 4 is weakened, and accordingly, the fixed inclination of the mounting member 7 in the left-right direction with respect to the mounting member 4 fluctuates due to the return force of the resilient bearing portion 8, and the air bubbles The mounting inclination of the tube 6 can be corrected so that the air bubble is horizontal.

At this time, the mounting member 4 is fixed to the body case 1 by pressing and deforming the contact bottom portion 11 while being pressed and deformed, so that the mounting member 4 is fixed for fine correction of the level of the bubble tube 6. Even if the screw 9 is rotated, the state where the contact bottom portion 11 is pressed and deformed remains unchanged, and the degree of elasticity is slightly changed only slightly, and the mounting member 4 is fixed to the body case 1 by press contact. It remains in the state.

Therefore, the mounting member 4 is securely connected to the case 1
Thus, the fine correction can be reliably performed while being fixed.

That is, the fixing screw 9 can be used as it is as a horizontal fine adjustment screw of the bubble tube 6, and the mounting member 4 is fixed to the body case 1 by pressing and fixing. Since the tilting adjustment of the mounting member 7 fitted to 4 can be performed, the fine adjustment can be performed reliably and accurately.

[0040]

Since the present invention is constructed as described above, the fastening screw for attaching and fixing the mounting member fitted with the mounting member provided with the bubble tube to the body case is rotated to operate.
Fine adjustment of the mounting inclination of the mounting member and fine adjustment of the horizontality of the bubble tube while maintaining the state where the mounting member is fixed and fixed. This is an epoch-making level that is extremely practical.

According to the second aspect of the present invention, the mounting member forms a lightening portion when the mounting member is molded with a resin, and a fastening screw penetrates the lightening portion so as to make contact with the bottom. The present invention can be easily realized by being configured so as to abut against the surface, and a level excellent in mass productivity and excellent in practicality that reliably exerts the above-described functions and effects can be obtained.

According to the third aspect of the present invention, the resilient bearing portion for resiliently supporting the mounting member fitted into the fitting concave portion of the mounting member is raised when the mounting member is molded with resin. The present invention can be easily realized by protruding and forming a level, which is excellent in mass productivity and extremely excellent in practicability and reliably exerts the above-mentioned functions and effects.

According to the fourth aspect of the present invention, since the mounting member can be stored and locked using the inner projecting ridge portion that can be provided when forming the case, the operation and effect can be ensured. Can easily realize the present invention,
It becomes a more innovative level.

[Brief description of the drawings]

FIG. 1 is a schematic configuration perspective view of the present embodiment.

FIG. 2 is an exploded perspective view of a main part of the embodiment.

FIG. 3 is an explanatory plan view of the mounting member showing a bottom of a fitting concave portion of the mounting member of the embodiment.

FIG. 4 is an enlarged cross-sectional view of a main part of the present embodiment, and is an explanatory view showing a state in which the level of the bubble tube is slightly out of order.

FIG. 5 is an enlarged cross-sectional view of a main part of the embodiment, illustrating a state in which one of the fastening screws is loosened and rotated to correct the horizontality of the bubble tube;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body case 2 Mounting hole 3 Mounting storage part 4 Mounting member 5 Fitting concave part 6 Bubble tube for measurement (bubble tube) 7 Mounting member 8 Resilient pressure bearing part 8A Rising elastic pressure bearing part 9 Fastening screw 10 Receiving part 11 Contact bottom part 12 Lightening 13 Inner protrusion 14 Curved plate 15 Predetermined gap (gap)

Claims (4)

(57) [Claims] 1. A mounting member is stored and locked in a mounting storage portion provided with a mounting hole formed in a body case, and a measurement bubble tube is fixed in a predetermined direction in a fitting concave portion provided in the mounting member. A mounting member is provided at the bottom of the fitting recess to resiliently support the mounting member so that the mounting member can be tilted to the left and right. The mounting member is disposed in a penetrating state, and the mounting member is fixedly fastened to the mounting member, and the mounting member is brought into contact with a receiving portion provided on the body case side by pressing and abutting the tip of the fastening screw by screwing. The lower contact bottom is pressed and deformed, and this mounting member is pressed and fixed to the body case in an elastic pressure state,
While maintaining the resilient state of the abutment bottom portion of the mounting member by the fastening screw, the fastening screw is rotated to operate the fastening member while the mounting member is fixedly fastened and fixed to the body case. The fixing inclination of the mounting member is changed in the lateral direction of the mounting member with respect to the mounting member by the elastic restoring force of the part, so that the mounting inclination of the measurement bubble tube fixed to the mounting member can be modified. Characteristic level. 2. A lightening portion is formed at a lower portion of the mounting member, and a contact bottom portion is formed below the lightening portion to be in contact with a receiving portion provided on the body case side. The tip penetrates through the mounting member, further penetrates through the lightening portion, and presses and abuts the abutment bottom, thereby pressing and deforming the abutment bottom and pressing the attachment member against the body case in an elastic pressure state. 2. The level according to claim 1, wherein the level is fixed. 3. A bulging resilient bearing in which a pair of curved plate portions provided to bend and bend freely butts each other with a predetermined gap therebetween and opposed to each other is integrally formed on the left and right sides of the bottom of the fitting recess. The level according to any one of claims 1 and 2, wherein the resilient bearing portion is formed by protruding the level. 4. A bottom plate portion below the lightening portion is defined as the contact bottom portion, and an inner surface projecting ridge portion slightly protruding toward the center in a state opposite to an intermediate height of the inner surface of the container case is defined as the receiving portion, The end of the abutment bottom is abutted and locked to the inner projecting ridge, and the abutment bottom is disposed in an extended state between the inner projecting ridges. The contact bottom portion is configured to be pressed downward by the tip of the fastening screw so as to elastically deform the contact bottom portion.
Level according to the paragraph.