adjustable spanner

Abstract

The present application relates to a spanner, comprising: a spanner body, comprising a handle and a working head connected to the handle, the working head comprising a side surface, an end surface transversely connected to the side surface, a fixed jaw extending from the end surface, a slot hole, and an adjusting screw rotatably installed in the slot hole, the side surface comprises a first bending portion and a second bending portion located at opposite sides of the slot hole, the first bending portion and the second bending portion respectively extend outward relative to the slot hole, the end surface extends in a direction defining a reference line, a first distance from the first bending portion to the reference line is different from a second distance from the second bending portion to the reference line; and a movable jaw movably arranged in the working head and engaged with the adjusting screw.

Description

Technical Field

[0001] This invention relates to a disassembly tool, and more particularly to an adjustable wrench. Background Technology

[0002] Adjustable wrenches have an adjustable opening size to accommodate fasteners of various sizes, and are therefore commonly used in the assembly, disassembly, connection, and tightening of devices. A typical adjustable wrench includes a fixed jaw, a movable jaw that can be adjusted relative to the fixed jaw, and an adjusting screw that meshes with the teeth of the movable jaw. By rotating the adjusting screw, the movable jaw can be moved closer to or further away from the fixed jaw, thereby adjusting the opening size of the adjustable wrench.

[0003] However, the known adjustable wrench has a slot for the adjusting screw, the edge of which is sharp and does not conform to the shape of the fingers, so it is uncomfortable to operate and pricks the fingers. Furthermore, the known adjustable wrench does not have a structural design on the two sides of the slot to facilitate the insertion of the fingers into the slot, so it is difficult to operate and apply force.

[0004] Therefore, it is necessary to provide a novel and progressive adjustable wrench to solve the above-mentioned problems. Summary of the Invention

[0005] The main objective of this invention is to provide an adjustable wrench that improves the comfort, stability, and smoothness of operation.

[0006] To achieve the above objectives, the present invention provides an adjustable wrench, comprising: a wrench body including a handle and a working head connected to the handle; the working head including a side surface, an end face laterally connected to the side surface, a fixed jaw extending outward from the end face, a slot, and an adjusting screw rotatably mounted in the slot; the side surface including a first bend portion and a second bend portion located on opposite sides of the slot, the first bend portion and the second bend portion extending outward relative to the slot; the extension direction of the end face defining a reference line; a first distance from the first bend portion to the reference line and a second distance from the second bend portion to the reference line being different; and a movable jaw movably disposed on the working head and engaging with the adjusting screw.

[0007] The first turning portion and the fixed jaw are located on the same side of the working head, and the first distance is less than a third distance from the bottom edge of the slot to the reference line.

[0008] The second distance is smaller than the third distance.

[0009] The slot includes a circumferential surface that gradually expands toward the side.

[0010] The circumferential surface includes an upper inclined surface, a first side inclined surface, and a second side inclined surface, the width of the first side inclined surface and the second side inclined surface being greater than the width of the upper inclined surface.

[0011] Relative to the side of the working head, the first tilt angle of the first side slope is smaller than the second tilt angle of the upper slope.

[0012] The peripheral surface also includes two tapering slopes, which taper from the first side slope and the second side slope toward the handle.

[0013] The thickness of the working head located on one side of the first bend and the second bend and away from the reference line is less than the thickness of the working head located on one side of the first bend and the second bend and close to the reference line.

[0014] The first turning portion and the fixed jaw are located on the same side of the working head, and the first distance is less than a third distance from the bottom edge of the slot to the reference line; the first tilt angle is not greater than 40 degrees, and the second tilt angle is not less than 45 degrees; the first turning portion and the second turning portion are stepped structures, planar turning structures, or chamfered structures; the thickness of the portion of the working head located on the side of the first turning portion and the second turning portion and away from the reference line is less than the thickness of the portion of the working head located on the side of the first turning portion and the second turning portion and close to the reference line.

[0015] The first turning portion gradually moves away from the reference line at one outer end of the working head toward the slot, while the second turning portion gradually moves closer to the reference line at the other outer end of the working head toward the slot.

[0016] The beneficial effects of the present invention are: the adjustable wrench of the present invention can improve the comfort, stability and smoothness of operation. Attached Figure Description

[0017] Figure 1 This is a perspective view of an embodiment of the present invention.

[0018] Figure 2 This is a front view of an embodiment of the present invention.

[0019] Figure 3 This is a partial enlarged view of an embodiment of the present invention.

[0020] Figure 4 This is a cross-sectional view of an embodiment of the present invention.

[0021] Figure 5 for Figure 4 A magnified view of a portion of the image.

[0022] Figure 6 This is another cross-sectional view of an embodiment of the present invention.

[0023] Figure 7 This is a front view of another embodiment of the present invention.

[0024] 1: Adjustable wrench 10: Wrench body 11: Grip 12: Working head 121: Side view 122: End face 123: Fixed jaw 124: Slot 125: Adjusting screw 126: First Turning Point 127: The Second Turning Point 128: Bottom edge 129: Zhoumian 131: Upper slope 132: First lateral slope 133: Second lateral slope 134: tapered bevel 20: Movable jaw D1: First Distance D2: Second distance D3: Third Distance L: Reference line θ1: First tilt angle θ2: Second tilt angle θ3: Third tilt angle Detailed Implementation

[0025] The following examples illustrate possible implementations of the present invention, but are not intended to limit the scope of protection of the present invention. The use of "a" or "at least one" before the terms mentioned herein is not a limitation on the quantity, and may also be "plural" depending on the requirements. Such variations in quantity are also within the scope of protection, and are therefore stated in advance.

[0026] Please refer to Figures 1 to 6 This illustrates an embodiment of the present invention, in which the movable wrench 1 of the present invention includes a wrench body 10 and a movable jaw 20.

[0027] The wrench body 10 includes a handle 11 and a working head 12 connected to the handle 11. The working head 12 includes a side surface 121, an end face 122 laterally connected to the side surface 121, a fixed jaw 123 extending outward from the end face 122, a slot 124, and an adjusting screw 125 rotatably mounted in the slot 124. The side surface 121 includes a first bend portion 126 and a second bend portion 127 located on opposite sides of the slot 124. The first bend portion 126 and the second bend portion 127 extend outward relative to the slot 124. The extension direction of the end face 122 defines a reference line L. A first distance D1 from the first bend portion 126 to the reference line L is different from a second distance D2 from the second bend portion 127 to the reference line L. The movable jaw 20 is movably disposed on the working head 12 and engages with the adjusting screw 125. This improves the comfort, stability, and smoothness of operation.

[0028] The first bend portion 126 and the second bend portion 127 can be a stepped structure, a planar bend structure, or a chamfered structure. In this embodiment, the first bend portion 126 and the second bend portion 127 are stepped structures. The thickness of the portion of the working head 12 located on one side of the first bend portion 126 and the second bend portion 127 and away from the reference line L is less than the thickness of the portion of the working head 12 located on one side of the first bend portion 126 and the second bend portion 127 and close to the reference line L. The thinner portion facilitates the insertion of the finger into the slot 124, while the thicker portion facilitates the stopping and alignment of the finger. For right-handed users, the first bend portion 126 and the fixing jaw 123 are located on the same side of the working head 12, and the first distance D1 is less than the third distance D3 from the bottom edge 128 of the slot 124 to the reference line L, making the structure suitable for finger insertion and facilitating the operation of the adjusting screw 125. In this embodiment, the second distance D2 is smaller than the third distance D3; however, in other embodiments, the second distance may be greater than the third distance. The first bend portion 126 gradually moves away from the reference line L at one outer end of the working head 12 towards the slot 124, and the second bend portion 127 gradually moves closer to the reference line L at the other outer end of the working head 12 towards the slot 124, thus preventing interference with finger movement. In other embodiments, for left-handed users, the positions of the first bend portion 126 and the second bend portion 127 can be interchanged (e.g., ...). Figure 7 With the above structural design, for operation using the right thumb (such as...) Figure 2 ) or when operating with the left thumb (such as Figure 7 It has a good guiding effect, and the thumb's operating path will not be interfered with, allowing it to operate in the most natural and comfortable direction.

[0029] The slot 124 includes a circumferential surface 129 that gradually widens towards the side surface 121, allowing the user's fingers to enter the slot 124 more smoothly. Specifically, the circumferential surface 129 includes an upper inclined surface 131, a first side inclined surface 132, and a second side inclined surface 133. The widths of the first side inclined surface 132 and the second side inclined surface 133 are greater than the width of the upper inclined surface 131, providing a contact surface that better conforms to the shape of the fingers. The upper inclined surface 131, the first side inclined surface 132, and the second side inclined surface 133 can be flat or curved. Relative to the side surface 121 of the working head 12, a first tilt angle θ1 of the first side inclined surface 132 is smaller than a second tilt angle θ2 of the upper inclined surface 131. Relative to the side surface 121 of the working head 12, a third tilt angle θ3 of the second side inclined surface 133 can be smaller or larger than the second tilt angle θ2 of the upper inclined surface 131. Therefore, when operating the adjusting screw 125, the upper inclined surface 131 provides adequate protection to prevent fingers from protruding from the slot 124, the first side inclined surface 132 allows fingers to enter the slot 124 more smoothly, and the second side inclined surface 133 provides better operating comfort and stability. The first tilt angle θ1 is not greater than 40 degrees, and the second tilt angle θ2 is not less than 45 degrees. For example, the first tilt angle θ1 is an angle between 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40 degrees, or any such value; the second tilt angle θ2 is an angle between 50 degrees, 55 degrees, 60 degrees, 65 degrees, 70 degrees, 75 degrees, 80 degrees, 85 degrees, or any such value; and the third tilt angle θ3 is an angle between 50 degrees, 55 degrees, 60 degrees, 65 degrees, 70 degrees, 75 degrees, 80 degrees, 85 degrees, or any such value.

[0030] Preferably, the peripheral surface 129 further includes two tapered slopes 134, which taper from the first side slope 132 and the second side slope 133 toward the handle 11, respectively, which can better conform to the overall shape of the fingers and help improve the comfort, stability and smoothness of operation.

Claims

1. An adjustable wrench, characterized in that: include: A wrench body includes a handle and a working head connected to the handle. The working head includes a side surface, an end face laterally connected to the side surface, a fixed jaw extending outward from the end face, a slot, and an adjusting screw rotatably mounted in the slot. The side surface includes a first bend portion and a second bend portion located on opposite sides of the slot. The first bend portion and the second bend portion extend outward relative to the slot, respectively. The extension direction of the end face defines a reference line. A first distance from the first bend portion to the reference line is different from a second distance from the second bend portion to the reference line. A movable jaw is movably disposed on the working head and engages with the adjusting screw.

2. The adjustable wrench as described in claim 1, characterized in that: The first turning portion and the fixed jaw are located on the same side of the working head, and the first distance is less than a third distance from the bottom edge of the slot to the reference line.

3. The adjustable wrench as described in claim 2, characterized in that: The second distance is smaller than the third distance.

4. The adjustable wrench as described in claim 1, characterized in that: The slot includes a circumferential surface that gradually expands toward the side.

5. The adjustable wrench as described in claim 4, characterized in that: The circumferential surface includes an upper inclined surface, a first side inclined surface, and a second side inclined surface, the width of the first side inclined surface and the second side inclined surface being greater than the width of the upper inclined surface.

6. The adjustable wrench as described in claim 5, characterized in that: Relative to the side of the working head, the first tilt angle of the first side slope is smaller than the second tilt angle of the upper slope.

7. The adjustable wrench as described in claim 6, characterized in that: The peripheral surface also includes two tapering slopes, which taper from the first side slope and the second side slope toward the handle.

8. The adjustable wrench as described in claim 1, characterized in that: The thickness of the working head located on one side of the first bend and the second bend and away from the reference line is less than the thickness of the working head located on one side of the first bend and the second bend and close to the reference line.

9. The adjustable wrench as described in claim 7, characterized in that: The first turning portion and the fixed jaw are located on the same side of the working head, and the first distance is less than a third distance from the bottom edge of the slot to the reference line; the first tilt angle is not greater than 40 degrees, and the second tilt angle is not less than 45 degrees; the first turning portion and the second turning portion are stepped structures, planar turning structures, or chamfered structures; the thickness of the portion of the working head located on the side of the first turning portion and the second turning portion and away from the reference line is less than the thickness of the portion of the working head located on the side of the first turning portion and the second turning portion and close to the reference line.

10. The adjustable wrench as described in any one of claims 1 to 9, characterized in that: The first turning portion gradually moves away from the reference line at one outer end of the working head toward the slot, while the second turning portion gradually moves closer to the reference line at the other outer end of the working head toward the slot.

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