JP2000071177A - Adjustable spanner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To speedily and accurately set a facing distance between an upper jaw and a lower jaw to a facing distance consistent with a nut, by providing a position displaying the facing distance between the upper jaw and the lower jaw with a bolt diameter indicating division for indicating the bolt diameter of a bolt screwed with a nut consistent with given facing distance. SOLUTION: A facing distance indicating division for indicating moving position of a lower jaw 2 that approaches or separates from an upper jaw 1 is formed from a bolt diameter indicating division 5 for a bolt diameter L2 of a bolt 4 screwed with a nut 3 whose nut diameter L1 is consistent with the facing distance between the upper jaw 1 and the lower jaw 2. When the lower jaw 2 is approached or separated from the upper jaw 1, the moving position indicated by movement of the lower jaw 2 indicates the bolt diameter L2 of the bolt 4 screwed with the nut 3. Therefore, only operation of an operation portion 6 can speedily and accurately set the facing distance between the upper jaw 1 and the lower jaw 2 to the distance consistent with the nut diameter L1 of the nut 3 screwed with the bolt 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monkey wrench.

[0002]

2. Description of the Related Art Conventionally, a monkey wrench provided with a worm mechanism capable of moving a lower jaw toward and away from an upper jaw by rotating an operation unit has been frequently used. When using this adjustable wrench, the operating distance of the worm mechanism is adjusted by estimating the nut diameter of the nut that is pinched and rotated between the upper jaw and the lower jaw, and the facing distance between the upper jaw and the lower jaw. After spreading over the nut diameter, and after fitting the nut, the upper jaw and the lower jaw were approached and the work was performed in a way to match the nut, but the facing distance between this upper jaw and the lower jaw The operation of matching the nut with the nut is, for example, when rotating the nut in a narrow place or a dark place, if the prediction of the nut diameter of the nut is incorrect, the upper and lower jaws are adjusted many times Must operate It was always awkward.

[0003] In view of the above, there has been proposed a monkey wrench provided with a length scale indicating the movement position of the lower jaw moving toward and away from the upper jaw. It was considered that the lower jaw could be accurately moved and adjusted by the displayed length scale so that the opposed interval matched the nut diameter.

However, the monkey wrench provided with a mere length scale for successively adjusting the nut diameter has a good idea, but actually, the user can adjust the nut diameter of the nut by just looking at the nut. Thus, this length scale has little practical use and lacks practicality.

[0005] On the other hand, it has been found that there are very many users who can accurately grasp the nut diameter of this nut, for example, how many millimeters, just by looking at the nut as described above.

The present invention focuses on the point that there are many users who can instantly grasp the bolt diameter, and a nut matching a predetermined facing distance is screwed into a position where the facing distance between the upper jaw and the lower jaw is displayed. By providing a bolt diameter index scale that indicates the bolt diameter of the bolt to be set, the opposing interval between the upper jaw and the lower jaw can be set quickly and accurately to the opposing interval matching the nut. It is an object of the present invention to provide a monkey wrench which can be solved and extremely convenient in operation.

[0007]

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

[0008] A bolt diameter indicator scale 5 for indicating the bolt diameter of the bolt 4 to which the nut 3 matching the predetermined facing distance is provided is provided at a position indicating the facing distance between the upper jaw 1 and the lower jaw 2. The present invention relates to a monkey wrench characterized by the following.

A monkey wrench provided with an opposing interval index scale for indicating a movement position of the lower jaw 2 which moves toward and away from the upper jaw 1 by operating the operation unit 6, wherein the upper jaw 1 and the lower jaw 2 are provided. Bolt diameter indicator scale 5 for indicating the bolt diameter of the bolt 4 to which the nut 3 is screwed, which coincides with the facing distance of
The monkey wrench according to claim 1, wherein a mark is provided as the opposed interval index scale.

In addition, the diameter of the bolt 4 to which the nut 3 is screwed is indicated at a position indicating the moving position of the lower jaw 2 with respect to the upper jaw 1 at an opposing interval corresponding to the nut 3 having a predetermined size. The monkey according to any one of claims 1 and 2, wherein a plurality of bolt diameter index displays (5a) are provided at predetermined positions corresponding to the bolt diameters of the plurality of different bolts (4) to constitute a bolt diameter index scale (5). It relates to a wrench.

[0011]

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.

According to the present invention, in use, for example, a user looks at a nut 3 to be tightened or loosened, grasps a bolt diameter of a bolt 4 to which this nut 3 is screwed, and uses an upper jaw according to a bolt diameter index scale 5. When the facing distance between the upper jaw 1 and the lower jaw 2 is adjusted and set, the facing distance between the upper jaw 1 and the lower jaw 2 becomes the facing distance that matches the nut diameter (outer diameter dimension) of the nut 3.

Therefore, conventionally, there is a problem that practicality is lacking because there are few users who can grasp the nut diameter only by looking at the nut 3, but according to the present invention, there is a problem. The problem will definitely be resolved.

More specifically, the present invention does not display the length scale on the assumption that the user can grasp the numerical value of the outer diameter of the nut just by looking at the nut 3, but instead of displaying a number of length scales for many users. Is provided with a bolt diameter index scale 5 for indicating the bolt diameter of the bolt 4 to which the nut 3 is screwed, which can be accurately grasped only by looking at the nut 3. Upper jaw 1 and lower jaw 2 on a predetermined bolt diameter index scale 5 for indicating the bolt diameter of
By simply adjusting and setting the facing distance with the nut 3, the facing distance is automatically and quickly set to the facing distance that matches the nut diameter of the nut 3.

Further, in the case of the invention according to the second aspect, the opposing interval index graduation for indicating the movement position of the lower jaw 2 moving toward and away from the upper jaw 1 is set to the upper jaw 1.
The lower jaw 2 moves toward and away from the upper jaw 1 by forming the bolt diameter of the bolt 4 on which the nut 3 whose screw diameter matches the opposed interval between the lower jaw 2 and the lower jaw 2 with the bolt diameter index scale 5. When the lower jaw 2 moves, the movement position indicated by the index indicates the bolt diameter of the bolt 4 to which the nut 3 is screwed. Therefore, simply operating the operation unit 6 causes the upper jaw 1 to move.
And the lower jaw 2 can be quickly and accurately set to an interval that matches the nut diameter of the nut 3 to be screwed to the bolt 4.

Further, in the case of the invention according to the third aspect, a plurality of bolt diameter indicators 5a indicating the bolt diameters of the bolts 4 to which the nuts 3 are screwed are displayed.
A plurality of bolt diameter indicator scales 5 are provided at predetermined positions corresponding to the bolt diameters of the bolts. For example, a bolt diameter indicator display 5a corresponding to the bolt diameter of the bolt 4 proposed in a plurality of standards is displayed in the standard. If a plurality of nuts are provided in accordance with the distance between the upper jaw 1 and the lower jaw 2, the user can quickly and accurately set the opposing interval between the upper jaw 1 and the lower jaw 2 to the opposing interval matching the plurality of nut diameters. It can be set.

[0017]

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

In this embodiment, the rack teeth 2a of the lower jaw 2 and the main body (grip handle) 7 are slidably provided as shown in FIG.
The screw 6a of the worm (operation unit 6) rotatably provided on the worm window 7a provided at the end of the lower jaw 1 and the lower jaw 2 with respect to the upper jaw 1 by rotating the operation unit 6.
A known worm mechanism 8 configured to be able to change the facing distance between the upper jaw 1 and the lower jaw 2 by moving toward and away from the upper jaw 1, and moving toward and away from the upper jaw 1 by operating the operation unit 6. This is a monkey wrench provided with an opposing interval index scale for indicating the moving position of the lower jaw 2.

In the present embodiment, a bolt diameter index capable of indicating a bolt diameter L2 of a bolt 4 to which a nut 3 having a nut diameter L1 matching the opposed distance between the upper jaw 1 and the lower jaw 2 is used as an opposing interval index scale. A scale 5 is provided, and the bolt diameter index scale 5 is provided corresponding to the bolt diameter L2 of the plurality of different bolts 4. That is, 8 mm (8M), 12 mm (12M), 1 mm
Multiple proposed standards of 6 mm (16M) (JIS standard)
The bolt diameter index display 5a of the bolt diameter L2 is provided.
On the side surface of the lower jaw 2 and at a position close to the bolt diameter index display 5a on the upper jaw 1, an index portion 9 capable of indicating the bolt diameter index display 5a is provided to constitute the bolt diameter index scale 5. . Therefore, for example, at the index unit 9, 8 mm (8
M), the distance between the upper jaw 1 and the lower jaw 2 facing each other (= the nut diameter L of the nut 3)
1) indicates a bolt diameter index display 5a of about 13 mm and 12 mm (13M), and the facing distance between the upper jaw 1 and the lower jaw 2 (= nut diameter L1 of the nut 3) is about 19 mm;
When the bolt diameter index display 5a of 16 mm (16M) is indicated, the facing distance between the upper jaw 1 and the lower jaw 2 (= nut diameter L1 of the nut 3) is adjusted and set to be about 24 mm. Will be.

Further, the bolt diameter index scale 5 according to this embodiment is used.
Although the bolt diameter index display 5a and the index portion 9 are provided by engraving on the surface of each metal member, they may be provided by printing or by sticking a seal.

Since the present embodiment is constructed as described above, in use, the user looks at the nut 3 and grasps the bolt diameter L2 of the bolt 4 to which the nut 3 is screwed, and operates the operating section 6 to By moving the lower jaw 2 toward and away from the upper jaw 1 until the index portion 9 of the lower jaw 2 matches the bolt diameter index display 5a of the upper jaw 1 for displaying the bolt diameter L2 to be set, this bolt diameter index scale When the facing distance between the upper jaw 1 and the lower jaw 2 is adjusted and set according to 5, the facing distance between the upper jaw 1 and the lower jaw 2 becomes the facing distance matching the nut diameter L1 of the nut 3 (see FIG. 2). .

Therefore, in the prior art, there was a problem that practicality was lacking because only a few users could grasp the nut diameter L1 just by looking at the nut 3, but according to the present embodiment, Rather than displaying the length scale on the assumption that the user can grasp the outer diameter value of the nut diameter L1 just by looking at the nut 3, many users can grasp exactly by looking at the nut 3. The bolt diameter L of the bolt 4 to which this nut 3 can be screwed
Since the bolt diameter index scale 5 indicating 2 is provided,
In the present embodiment, a scale for displaying the actual facing distance between the upper jaw 1 and the lower jaw 2 in the same length dimension is not provided, but the bolt diameter L2 of the bolt 4 to which the nut 3 is screwed is set. By indicating on the bolt diameter index scale 5, the user can adjust and set the actual opposing distance between the upper jaw 1 and the lower jaw 2 to the opposing distance matching the nut diameter L1 different from the bolt diameter L2. Since the bolt diameter index scale 5 configured on the basis of the bolt diameter L2 that is well known is provided,
The user can select the bolt diameter L of the bolt 4 to which the nut 3 is screwed.
By simply adjusting and setting the opposing interval between the upper jaw 1 and the lower jaw 2 on a predetermined bolt diameter index scale 5 indicating the index 2, the opposing interval automatically becomes the opposing interval that matches the nut diameter L1 of the nut 3. It will be set quickly and accurately.

Further, in this embodiment, an opposing interval index scale indicating the moving position of the lower jaw 2 moving toward and away from the upper jaw 1 is set to a nut diameter L at an opposing interval between the upper jaw 1 and the lower jaw 2.
The bolt diameter L of the bolt 4 to which the nut 3 matching 1 is screwed
When the lower jaw 2 is moved toward and away from the upper jaw 1 by configuring the bolt jaw 2 with the bolt diameter index scale 5, the lower jaw 2
Is moved to indicate the bolt diameter L2 of the bolt 4 to which the nut 3 is screwed. Therefore, simply by operating the operation unit 6, the facing distance between the upper jaw 1 and the lower jaw 2 can be reduced. It is possible to quickly and accurately set an interval that matches the nut diameter L1 of the nut 3 to be screwed to the bolt 4.

In the present embodiment, a bolt diameter indicator 5a indicating the bolt diameter L2 of the bolt 4 to which the nut 3 is screwed.
Are provided at predetermined positions corresponding to the bolt diameters L2 of the plurality of different bolts 4 and the bolt diameter index scales 5 are provided. For example, this corresponds to the bolt diameter L2 of the bolts 4 proposed in a plurality of standards. If a plurality of bolt diameter index displays 5a are provided in accordance with the standard, the user can accurately grasp the bolt diameter L2 of the bolt 4, so that the upper jaw 1
The distance between the lower jaw 2 and the lower jaw 2 can be quickly and accurately set to the distance between the lower jaw 2 and the plurality of nut diameters L1.

[0025]

Since the present invention is constructed as described above, the length scale is not displayed on the assumption that the user can grasp the numerical value of the outer diameter of the nut simply by looking at the nut. Since many users can accurately grasp just by looking at the nut, this nut has a bolt diameter indicator scale that indicates the bolt diameter of the bolt to which the nut is screwed. By simply adjusting and setting the facing distance between the upper jaw and the lower jaw on a predetermined bolt diameter index scale, the facing distance is automatically and quickly set to the facing distance matching the nut diameter of this nut. Will be.

According to the second aspect of the present invention, in addition to the functions and effects of the first aspect of the present invention, an opposing interval index scale for indicating a movement position of the lower jaw moving toward and away from the upper jaw is provided. When the lower jaw is moved toward and away from the upper jaw by configuring the bolt diameter of the bolt on which the nut whose nut diameter matches the facing distance between the upper jaw and the lower jaw is screwed with the bolt diameter index scale. Because the lower jaw moves and the indexed movement position indicates the bolt diameter of the bolt to which the nut is screwed, simply operating the operation unit will screw the opposing gap between the upper jaw and lower jaw to the bolt. It is a very convenient and revolutionary monkey wrench, for example, it is possible to quickly and accurately set an interval corresponding to a nut diameter of a nut to be made.

According to the third aspect of the present invention, in addition to the functions and effects of the first and second aspects of the present invention, a plurality of bolts having different bolt diameter indicators for indicating the bolt diameter of the bolt to which the nut is screwed. Since a plurality of bolt diameter indicator scales are provided at predetermined positions corresponding to the bolt diameters of
For example, if a plurality of bolt diameter index displays corresponding to the bolt diameters of bolts proposed in a plurality of standards are provided according to the standards, the user can accurately grasp the bolt diameters of the bolts, so that the upper jaw and the lower part can be grasped. It is a very convenient and revolutionary monkey wrench such that the opposing interval of the jaw can be quickly and accurately set to the opposing interval matching a plurality of nut diameters.

[Brief description of the drawings]

FIG. 1 is a front view showing this embodiment.

FIG. 2 is an operation explanatory diagram of the present embodiment.

[Explanation of symbols]

 1 Upper jaw 2 Lower jaw 3 Nut 4 Bolt 5 Bolt diameter index scale 5a Bolt diameter index display 6 Operation unit

Claims (3)

[Claims] 1. A bolt diameter indicator scale for indicating a bolt diameter of a bolt to which a nut corresponding to a predetermined facing distance is screwed is provided at a position where the facing distance between the upper jaw and the lower jaw is displayed. Monkey wrench to do. 2. A monkey wrench provided with an opposing interval index scale for indicating a moving position of a lower jaw moving toward and away from the upper jaw by operation of an operation unit, which matches an opposing interval between the upper jaw and the lower jaw. The monkey wrench according to claim 1, wherein a bolt diameter index scale for indicating a bolt diameter of a bolt on which a nut to be screwed is provided is provided as the opposed interval index scale. 3. A bolt diameter index display for indicating a bolt diameter of a bolt to which this nut is screwed is provided at a position for indicating a movement position of the lower jaw with respect to an upper jaw at an opposing interval corresponding to a nut of a predetermined size. The monkey wrench according to any one of claims 1 and 2, wherein a plurality of bolts are provided at predetermined positions corresponding to bolt diameters of a plurality of different bolts to form a bolt diameter indicator scale.