TWI817808B - Hand tool and method for manufacturing the same - Google Patents

Abstract

A method for manufacturing a hand tool is provided, including following steps of: determining a target size according to a first standard range and a second standard range; and forming a hand tool body according to the target size. One of the first standard range and the second standard range is a metric size range, and the other of the first standard range and the second standard range is an imperial size range. The hand tool body includes an opening and a plurality of sidewalls defining the opening, and a distance between two said sidewalls radially opposite to each other corresponds to the target size. A hand tool is further provided, manufactured by the method as described above. The hand tool is a wrench or a socket, and the opening is disposed on one end of the hand tool body and configured to be assembled with a fastener.

Description

Hand tools and how to make them

The present invention relates to hand tools, and in particular to a hand tool and a manufacturing method thereof.

General hand tools, such as but not limited to open-end wrenches, closed-end wrenches, ring wrenches, ratchet wrenches, sockets, etc., are provided with at least one socket for socketing a fastener, and the size of each socket conforms to a metric size or an inch size suitable for the desired rotation of the fastener. Existing fasteners come in various sizes, including metric and inch sizes, and existing hand tools can only provide sockets (double-headed) in two sizes at most. Therefore, operators need to prepare multiple hand tools of different specifications or sizes. It is necessary to prepare for the operation, but it is inconvenient to carry and the purchase cost is high.

In order to solve the aforementioned problems, there are also hand tools on the market with a single socket that can be used for two sizes of fasteners. However, the side walls surrounding the socket need to be processed to form curved convex surfaces, grooves, abutting walls, etc. The structure It is more complicated and has high processing cost. It is also easy to cause deformation and slippage of the fastener due to the small contact area.

Therefore, it is necessary to provide a novel and progressive hand tool and its manufacturing method to solve the above problems.

The main purpose of the present invention is to provide a hand tool and a manufacturing method thereof, which can be applied to fasteners of different specifications or sizes, have a simple structure and are easy to manufacture.

In order to achieve the above object, the present invention provides a method for manufacturing hand tools, which includes the following steps: setting a target socket size based on a first standard range and a second standard range; wherein the first standard range and the second standard range include: One is a metric size range, the other is an inch size range; the first standard range includes a first upper limit value and a first lower limit value, the second standard range includes a second upper limit value and a second lower limit value; when the first lower limit value is between the second lower limit value and the second upper limit value, the target sleeve size is set to be no less than the first lower limit value and no more than At least one of the first upper limit value and the second upper limit value; when the first lower limit value is greater than the second lower limit value and the second upper limit value, the target sleeve size is set to be no less than the The first lower limit value is not greater than the first upper limit value; and a hand tool body is formed according to the target socket size. The hand tool body is provided with a socket and a plurality of sides surrounding the socket, radially opposite to each other. The distance between the two sides corresponds to the target sleeve size.

In order to achieve the above object, the present invention also provides a hand tool, which is made by the above-mentioned hand tool manufacturing method, wherein the hand tool is a wrench or a sleeve, and the socket is provided at one end of the hand tool body and is provided for Socket a fastener.

The following examples are only used to illustrate the possible implementation modes of the present invention, but are not intended to limit the scope of protection of the present invention.

Please refer to Figures 1 to 2, which show a first preferred embodiment of the present invention. The manufacturing method of the hand tool of the present invention includes the following steps: setting a target socket size based on a first standard range and a second standard range; and The first-hand tool body 10 is formed according to the target pocket size.

One of the first standard range and the second standard range is a metric size range and the other is an inch size range; the first standard range includes a first upper limit and a first lower limit, and the The second standard range includes a second upper limit value and a second lower limit value. When the first lower limit value is between the second lower limit value and the second upper limit value, the target sleeve size is set to be no less than the first lower limit value and no more than the first upper limit value and At least one of the second upper limit values; when the first lower limit value is greater than the second lower limit value and the second upper limit value, the target sleeve size is set to be not less than the first lower limit value and not is greater than the first upper limit value. The hand tool body 10 is provided with a socket 11 and a plurality of side edges 12 surrounding the socket 11. The distance between the two radially opposite sides 12 corresponds to the target socket size, whereby the socket 11 can It is also suitable for fasteners of metric and imperial rulers, which is easy to process, has a wide range of applications and has good operational stability.

In this embodiment, the first standard range is the inch size range, and the second standard range is the metric size range; taking the size of 11/16 inches in inch and 17 mm in metric as an example, the inch size that meets the standard The size range is 17.51 mm (the first lower limit) to 17.76 mm (the first upper limit), and the metric size range that meets the standard is 17.05 mm (the second lower limit) to 17.30 mm (the second upper limit), the target socket size can be set between 17.51 mm and 17.76 mm (for example, 17.67 mm), so that the socket 11 of the hand tool conforms to the inch size range and can be used on 11/16 ” The inch fasteners are also close to the metric size range and can be used for 17 mm fasteners, which require no additional processing and are easy to manufacture.

Preferably, when the target sleeve size corresponds to the first standard range and does not correspond to the second standard range, the difference between the target sleeve size and the second lower limit is not greater than 0.8 mm; when the third When the lower limit value is greater than the second lower limit value and the second upper limit value, the difference between the first lower limit value and the second upper limit value shall not be greater than 0.4 mm to avoid excessive size difference to ensure that the corresponding Stably abuts and drives the fastener within the size range. It should be noted that the manufacturing method of the hand tool is to configure the distance between the two radially opposite sides of the socket to comply with the target socket size. The target socket size is selected by the above method and can be the same during operation. The two sides abut against the fasteners of different sizes. The plurality of sides do not need to be processed or configured into special shapes, so they can provide stable contact. The fasteners are not easy to slip or wear, and the use effect is good.

The manufacturing method of the hand tool further provides a first size mark 20 corresponding to the metric size range and a second size mark 30 corresponding to the inch size range on the hand tool body 10. The first size mark 20 and the The two size marks 30 respectively include at least one of characters, numbers and patterns, as shown in Figure 1, which is convenient for the user to select. Preferably, the manufacturing method of the hand tool further provides at least one identification structure 40 on the hand tool body 10. When the target socket size corresponds to the metric size range, the first size mark 20 is provided with the identification structure 40; When the target sleeve size corresponds to the imperial size range, the second size mark 30 is provided with the identification structure 40 to facilitate the user to identify the standard size that the sleeve 11 conforms to. In this embodiment, the at least one identification structure 40 includes a first identification part 41 corresponding to the first size mark 20 and a second identification part 42 corresponding to the second size mark 30; the first identification part 41 and the second identification portion 42 may be, for example, a circular, oval or polygonal pattern respectively. When the target sleeve size corresponds to one of the metric size range and the inch size range and does not correspond to the other of the metric size range and the inch size range, the first identification portion 41 is different from the second The identification part 42 has a hexagonal frame and a circular frame as shown in FIG. 1 . The first identification part 41 and the second identification part 42 have different shapes. Thereby, the user can easily know that the size of the sleeve 11 conforms to the imperial size range of 11/16 inches and can also be used in the metric size range of 17 mm. In other embodiments, the at least one identification structure It can also include patterns, concave and convex structures, color blocks, text coloring, etc. For example, if the first and second marking parts meet the standard range, the red pattern will be used, and if the first and second marking parts do not meet the standard range, the green pattern will be displayed; the first and second marking parts Those that meet the standard range can also have a circular border, while those that do not meet the standard range have no border, etc., all of which can be identified.

Preferably, the hand tool can be made by forming a plurality of slots 13 connected to the sleeve opening 11. Each slot 13 is located between two adjacent sides 12, which facilitates the insertion of the fastener and prevents the fastening. The corners of the fasteners are worn. Preferably, each side 12 is a continuously extending plane section, and a width of each side 12 defining the distance is not less than a width of another one of the plurality of sides 12, so as to provide stable contact with the side. Fasteners.

Please also refer to the second preferred embodiment shown in Figure 3. When the first lower limit value is between the second upper limit value and the second lower limit value, the target sleeve size is between the second upper limit value and the second lower limit value. between the lower limit value and the second upper limit value. In this embodiment, the first standard range is the metric size range, and the second standard range is the inch size range. Taking the size of 5/8” inch in inch and 16 mm in metric as an example, the inch size that meets the standard The size range is 15.91 mm (the second lower limit) to 16.16 mm (the second upper limit), and the metric size range that meets the standard is 16.05 mm (the first lower limit) to 16.27 mm (the first upper limit value), the target sleeve size can be set between 16.05 mm and 16.16 mm (for example, 16.15 mm), whereby the sleeve 11a conforms to both the imperial size range and the metric size range, and is suitable for a variety of sizes and convenient Used. When the target sleeve size corresponds to the metric size range and the imperial size range, the first identification part 41 and the second identification part 42 have the same shape, indicating that the sleeve 11a conforms to the two specifications and sizes. It is also applicable to the corresponding fastener. It can be understood that the hand tool body 10a can be provided with a plurality of the sockets 11a, 11b, and the shape, specification and size of the plurality of sockets 11a, 11b can be set to be the same according to the requirements. Or different.

The present invention also provides a hand tool, which is made by the above-mentioned hand tool manufacturing method. The hand tool is a wrench (the first and second embodiments shown in Figures 1-3) or a sleeve (as shown in Figure 1-3). 4), the sockets 11, 11a, 11b, 11c are provided at one end of the hand tool body 10, 10a, 10b and are used to connect a fastener. The radial size of the sleeve 11a is preferably between one of the lower limit of the metric size range and the inch size range and the upper limit of the other, thereby simultaneously complying with the metric size range and the inch size range. The inch size range can be better applied to the fasteners of different specifications and sizes.

10,10a,10b: hand tool body 11,11a,11b,11c: sleeve 12:Side 13: missing slot 20: First size mark 30: Second size mark 40: Identify structure 41:First Identification Department 42:Second Identification Department

Figure 1 is a perspective view of the first preferred embodiment of the present invention. Figure 2 is a side view of the first preferred embodiment of the present invention. Figure 3 is a perspective view of the second preferred embodiment of the present invention. Figure 4 is a perspective view of the third preferred embodiment of the present invention.

10: Hand tool body

11: Knuckle

Claims (10)

A method of making hand tools, including the following steps: Set a target sleeve size based on a first standard range and a second standard range; wherein one of the first standard range and the second standard range is a metric size range and the other is an inch size range; the The first standard range includes a first upper limit and a first lower limit, and the second standard range includes a second upper limit and a second lower limit; when the first lower limit is between the When the second lower limit value is between the second upper limit value and the second upper limit value, the target sleeve size is set to be no less than the first lower limit value and no greater than at least one of the first upper limit value and the second upper limit value; When the first lower limit is greater than the second lower limit and the second upper limit, set the target sleeve size to be no less than the first lower limit and no more than the first upper limit; and A hand tool body is formed according to the target sleeve size. The hand tool body is provided with a sleeve and a plurality of sides surrounding the sleeve. The distance between the two radially opposite sides corresponds to the target sleeve size. The method for manufacturing a hand tool as described in claim 1, wherein when the target socket size corresponds to the first standard range and does not correspond to the second standard range, the target socket size is the second lower limit value. The difference is no more than 0.8 mm. The manufacturing method of hand tools as described in claim 1, wherein when the first lower limit value is greater than the second lower limit value and the second upper limit value, the difference between the first lower limit value and the second upper limit value is The difference is no more than 0.4 mm. The method of making a hand tool as described in claim 1, further setting a first size mark corresponding to the metric size range and a second size mark corresponding to the imperial size range on the hand tool body, wherein the first size The mark and the second size mark respectively include at least one of text, numbers and patterns. The method of manufacturing a hand tool as described in claim 4, further providing at least one identification structure on the hand tool body, wherein when the target socket size corresponds to the metric size range, the first size mark is provided with one of the identification structures; When the target sleeve size corresponds to the imperial size range, the second size mark is provided with the identification structure. The method for manufacturing a hand tool as described in claim 4 further includes a first identification portion corresponding to the first size mark and a second identification portion corresponding to the second size mark on the hand tool body, wherein when the When the target sleeve size corresponds to one of the metric size range and the inch size range and does not correspond to the other of the metric size range and the inch size range, the first identification part is different from the second identification part. The method of manufacturing a hand tool as described in claim 6, wherein when the target socket size corresponds to the first standard range and does not correspond to the second standard range, the target socket size is the second lower limit value. The difference is not greater than 0.8 mm; the manufacturing method of the hand tool is to form a plurality of slots connected to the sleeve, each slot is located between two adjacent sides; when the target sleeve size corresponds to the metric size range and the inch size range, the first identification part and the second identification part have the same shape; when the target sleeve size corresponds to one of the metric size range and the inch size range and does not correspond to the metric size range And when the imperial size range is another, the shapes of the first identification part and the second identification part are different; and the first identification part and the second identification part are respectively a circular, oval or polygonal pattern. The method of manufacturing a hand tool as described in claim 1, wherein when the first lower limit value is between the second upper limit value and the second lower limit value, the target socket size is between the first lower limit value and the second lower limit value. limit and the second upper limit. A hand tool made by the hand tool manufacturing method as described in any one of claims 1 to 7, wherein the hand tool is a wrench or a socket, and the socket is provided at one end of the hand tool body and is provided for the socket Attach a fastener. The hand tool as claimed in claim 9, wherein the radial dimension of the socket is between a lower limit of one of the metric size range and the inch size range and an upper limit of the other.

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