Hinge-type spanner having adjustable interval in different length units

Abstract

The present invention relates to a hinge-type spanner having an adjustable interval in different length units. The hinge-type spanner comprises: a handle; a head which is formed on an upper part of the handle, has a fixation jaw formed at one side thereof to protrude upward and fixed thereto, and has a guide groove formed therein to elongate horizontally; a movement jaw which is inserted into the guide groove and reciprocates along the guide groove in the left / right direction; a restoration spring which is formed on the guide groove and elastically supports the movement jaw toward the outside in which the movement jaw is away from the fixation jaw; and an interval adjusting means which sets the left / right position of the movement jaw to adjust an interval between the movement jaw and the fixation jaw.

Description

Hinge-type spanner with adjustable spacing in different length units

[0001] The present invention relates to a hinge-type spanner in which the gap is adjusted in different length units, and more particularly, to a hinge-type spanner in which the gap between jaws can be appropriately adjusted in response to the dimensions of bolts or nuts manufactured in length units of millimeters or inches, thereby ensuring excellent usability of the spanner, and further, since an adjusting piece in which an adjusting ratchet that engages with a moving ratchet of a moving jaw is formed has a structure in which the adjusting piece is fastened based on a hinge pin, even if a strong force (load) is generated in the moving jaw portion, the left-right movement of the adjusting piece is firmly prevented, and the movement of the moving jaw is fundamentally blocked together with the moving ratchet that is fixed by the adjusting piece, thereby solving various problems that may occur when a gap between the fixed jaw and the moving jaw is slightly widened during the use of the spanner, thereby ensuring excellent usability safety of the product.

[0002] A spanner is a widely used tool for tightening or loosening bolts or nuts.

[0003] Generally, when using a spanner, one made to fit the dimensions of the bolt or nut is used, but to solve this problem, most people use a so-called monkey spanner to lock or loosen bolts or nuts of various dimensions other than the specified dimensions.

[0004] The term 'monkey spanner' usually refers to something that allows for adjustment of the gap between the jaws.

[0005] That is, it is a spanner that is composed of a fixed jaw fixed to the head of the spanner and a movable jaw structured to be able to move horizontally on the head, making it easy to adjust the gap between the jaws.

[0006] However, there are usually markings on the spanner head for spacing adjustment.

[0007] Typically, these scales are formed with only one length unit, such as millimeters (mm) or inches. Therefore, only one type of length can be adjusted. If a different type of length needs to be adjusted, a separate spanner with a different length unit must be used, which presents a problem.

[0008] In this regard, a prior art has been proposed in which millimeter and inch scales are formed on both sides of a monkey spanner, such as the "multipurpose monkey spanner" (Public Utility Model Publication No. 20-1995-29740).

[0009] However, this is simply a drawing of different scales, making precise length adjustment impossible.

[0010] In order to solve the above problems, the applicant proposed to develop a "spanner capable of adjusting the spacing of different length units" (Patent Publication No. 10-2022-0121615), which allows the worker to adjust the spacing of the moving jaws according to the dimensions of the bolts or nuts in millimeter or inch units as needed, thereby eliminating the need to separately prepare spanners for inches and millimeters.

[0011] However, in the above-mentioned "spanner capable of adjusting the interval of different length units", the adjusting piece, which is formed by engaging with the moving ratchet of the moving jaw to fix the position of the moving jaw, has a structure in which it is inserted into the adjusting piece groove and is raised and lowered. In order for the adjusting piece to be raised and lowered smoothly, a fine tolerance exists between the adjusting piece groove and the adjusting piece. This tolerance causes a fine movement (movement) of the adjusting piece connected to the moving jaw when a strong force (load) is applied to the moving jaw, and the moving jaw is not firmly fixed but is induced to move slightly, resulting in a problem in which the gap between the jaws is widened.

[0012] In addition, the above-mentioned "spanner capable of adjusting the interval of different length units" has a structure in which the first spring supporting the first and second adjusting pieces is formed to be the size of the width of the adjusting pieces, so that the size of the first spring is formed too small, and thus the elastic support force of the first spring is somewhat weak, making it difficult for the first and second adjusting pieces to operate smoothly. In addition, there is a problem in that the small size of the first spring makes it difficult to assemble the product during product assembly, which reduces the assembly productivity of the product.

[0013] Moreover, since the use of a part such as a split plate is required to prevent the first adjustment ratchet from encroaching on the second moving ratchet and the second adjustment ratchet from encroaching on the first moving ratchet during the process in which the first and second adjustment ratchets of the first and second adjustment members operate independently, the "spanner capable of adjusting the intervals of different length units" has the disadvantage of requiring too much time and parts for manufacturing.

[0014] In addition, the disengagement means of the above-mentioned "spanner capable of adjusting the interval of different length units" had a problem in use in that the slider frequently got caught in the process of the pressing part returning to the original position while being lifted by the first and second adjusting pieces.

[0015] [Prior Art Literature]

[0016] [Patent Document]

[0017] [Document 0001] Republic of Korea Public Utility Model Publication No. 20-1995-29740 (November 17, 1995)

[0018] [Document 0002] Republic of Korea Patent Publication No. 10-2022-0121615 (September 1, 2022)

[0019] The present invention has been proposed to solve the above-mentioned problems, and its purpose is to provide a hinge-type spanner in which the gap between jaws can be appropriately adjusted in response to the dimensions of bolts or nuts manufactured in units of millimeters or inches in length, thereby ensuring excellent usability of the spanner, and also, since the adjusting piece, in which the adjusting ratchet that engages with the moving ratchet of the moving jaw is formed, has a structure in which the left-right movement of the adjusting piece is firmly prevented even when a strong force (load) is generated in the moving jaw portion, and the movement of the moving jaw is fundamentally blocked together with the moving ratchet that is fixed by the adjusting piece, thereby solving various problems that may occur when the gap between the fixed jaw and the moving jaw is slightly widened during the use of the spanner, thereby ensuring excellent usability safety of the product.

[0020] In addition, the diameter of the first and second adjusting springs can be formed as large as the width of the first and second adjusting pieces through the structure of the first and second supporting members of the adjusting part, thereby ensuring stable operation of the first and second adjusting pieces and providing convenience in product assembly, thereby providing a hinge-type spanner in which the interval is adjusted in different length units that can secure excellent product productivity.

[0021] Furthermore, the use of parts such as split plates used in conventional spanners is not required through the guide step configuration of the adjustment part, so the time and parts required for assembling the product can be significantly reduced, thereby providing a hinge-type spanner in which the gap is adjusted in different length units, which can secure excellent productivity and price competitiveness of the product.

[0022] In addition, a gap is formed between the catch groove and the catch piece of the restoration button that constitutes the restoration part, so that a clearance is secured so that the restoration button can rotate like a seesaw with respect to the catch piece, and thus a phenomenon of a load being generated between the catch groove and the catch piece during the restoration process of the restoration button is stably prevented, thereby ensuring the structural safety of the product. A hinge-type spanner in which the gap is adjusted in different length units is provided.

[0023] A hinge-type spanner with an adjustable gap in different length units according to the present invention comprises a handle, a head formed on the upper portion of the handle and having a fixed jaw protruding upwardly and fixedly formed on one side, and a guide groove formed horizontally long inside, a movable jaw inserted into the guide groove and reciprocating in the left and right direction along the guide groove, a restoring spring formed on the guide groove and elastically supporting the movable jaw outwardly away from the fixed jaw, and a gap adjusting means for adjusting the gap between the movable jaw and the fixed jaw by setting the left and right position of the movable jaw.

[0024] The above gap adjusting means comprises a first moving ratchet having a plurality of teeth formed long in the left-right direction at the lower portion of the moving jaw, the teeth being formed at intervals in millimeters, a second moving ratchet having a plurality of teeth formed long in the left-right direction at the lower portion of the moving jaw, the teeth being formed at intervals in inches, and a first adjusting piece positioned at the lower portion of the moving jaw, the upper portion of which has a plurality of teeth having the same interval as that of the first moving ratchet, and when engaged with the first moving ratchet, a first adjusting ratchet is formed, and the first adjusting piece positioned at the lower portion of the moving jaw, the upper portion of which has a plurality of teeth having the same interval as that of the second moving ratchet, and when engaged with the second moving ratchet, the moving jaw is prevented from being moved outward together with the second moving ratchet. It is characterized by comprising a second adjusting member in which a second adjusting ratchet is formed to prevent the second adjusting member from moving, a hinge pin that penetrates the head together with the other ends of the first and second adjusting members to fix the positions of the first and second adjusting members so that the first and second adjusting members are rotatably connected, an adjusting unit positioned at the lower portions of the first and second adjusting members to forcibly raise and lower the first and second adjusting members respectively so that one of the teeth of the first and second adjusting members engages with the teeth of the first moving ratchet or the second moving ratchet, and a restoring unit that forcibly lowers the first and second adjusting members to release the engagement between the teeth of the first and second adjusting members and the teeth of the first and second moving ratchets.

[0025] In addition, the adjustment part includes an adjustment groove formed inside the head so that the first and second adjustment pieces are received, a first adjustment spring positioned at the lower portion of the adjustment groove to elastically support one end of the first adjustment piece upward, a second adjustment spring positioned at the lower portion of the adjustment groove to be horizontally spaced apart from the first adjustment spring to elastically support one end of the second adjustment piece upward, a first support groove formed at the lower portion of one end of the first adjustment piece so that the upper portion of the first adjustment spring is brought into contact, and a first interference prevention groove for preventing contact between the first adjustment piece and the upper portion of the second adjustment spring, so that only the first adjustment piece can be elastically supported by the first adjustment spring, and a first support member formed at the lower portion of one end of the second adjustment piece so that the upper portion of the second adjustment spring is brought into contact, but is formed at the same position as the first interference prevention groove of the first support member and lower than the first interference prevention groove. It is characterized by comprising a second support member that includes a second interference prevention groove formed at the same position as the first support groove of the first support member and at a higher position than the first support groove to prevent contact between the second adjustment piece and the upper portion of the first adjustment spring, so that only the second adjustment piece can be elastically supported by the second adjustment spring, and a guide step formed between the lower portions of the first and second movement ratches by positioning the lower height of the second movement ratchet higher than the lower height of the first movement ratchet.

[0026] In addition, the restoration part is formed on the upper portion of the first and second adjusting members, respectively, and includes a restoration groove having a slope formed on one side, a catch groove formed inside that is engaged with the catch piece of the head so as to be able to move forward and backward, a restoration button that is extended at one end and positioned in the restoration groove, and a catch piece that is formed on the head and is engaged with the catch groove of the restoration button to guide the forward and backward movement of the restoration button.

[0027] A tolerance is formed between the above-mentioned catch groove and the above-mentioned catch piece,

[0028] When the above restoration button is pressed, one end of the restoration button rises along the slope of the restoration home and lowers the first and second adjustment pieces, thereby releasing the engagement between the first and second adjustment pieces and the first and second moving ratchets.

[0029] In addition, it is configured to further include a straightening member to secure the straightness of the above-mentioned main button;

[0030] The above straight member is configured to include a straight bar formed long from the restoration button toward the head, and a straight groove formed on the side of the head to guide forward and backward movement of the straight bar, and is characterized in that a gap is formed between the straight bar and the straight groove.

[0031] According to the hinge-type spanner of the present invention, the gap between the jaws can be appropriately adjusted in accordance with the dimensions of the bolts or nuts manufactured in units of lengths of millimeters or inches, thereby ensuring excellent usability of the spanner. In addition, since the adjusting piece, in which the adjusting ratchet that engages with the moving ratchet of the moving jaw is formed, has a structure in which it is fastened based on the hinge pin, even if a strong force (load) is generated in the moving jaw portion, the left-right movement of the adjusting piece is firmly prevented, and the movement of the moving jaw is fundamentally blocked together with the moving ratchet that is fixed by the adjusting piece, thereby solving various problems that may occur when the gap between the fixed jaw and the moving jaw is slightly widened during the use of the spanner, thereby ensuring excellent usability safety of the product.

[0032] In addition, since the diameter of the first and second adjusting springs can be formed as large as the width of the first and second adjusting pieces through the structure of the first and second supporting members of the adjusting section, stable operation of the first and second adjusting pieces can be secured, while convenience in product assembly can be provided, thereby securing excellent productivity of the product.

[0033] Moreover, the guide step configuration of the control unit eliminates the need for parts such as split plates used in conventional spanners, which significantly reduces the time and parts required for assembling the product, thereby securing excellent productivity and price competitiveness of the product.

[0034] In addition, a gap is formed between the catch groove and the catch piece of the restoration button that constitutes the restoration part, so that a play is secured that allows the restoration button to rotate like a seesaw with respect to the catch piece, and thus, a load is generated between the catch groove and the catch piece during the restoration process of the restoration button, which stably prevents the phenomenon of it getting caught, thereby ensuring the structural safety of the product.

[0035] FIG. 1 is a perspective view showing the interior of a hinge-type spanner with an adjustable spacing in different length units according to an embodiment of the present invention.

[0036] Figure 2 is an exploded perspective view of a hinge-type spanner whose spacing is adjusted in different length units as shown in Figure 1.

[0037] Figure 3 is a cross-sectional view taken along the line AA of a hinge-type spanner whose spacing is adjusted in different length units as shown in Figure 1.

[0038] Figures 4, 5, and 6 are usage diagrams of a hinge-type spanner whose spacing is adjusted in different length units as shown in Figure 1.

[0039] 〈Explanation of symbols for major parts of the drawing〉

[0040] 1. Handle 2. Head

[0041] 3. Moving joint 4. Restoration spring

[0042] 10. Spacing adjustment means 11. First moving ratchet

[0043] 12. Second moving ratchet 13. First adjusting piece

[0044] 14. Second adjustment piece 15. Hinge pin

[0045] 16. Control section 161. Control section home

[0046] 162. First adjusting spring 163. Second adjusting spring

[0047] 164. First support member 165. Second support member

[0048] 166. Guide step 17. Restoration section

[0049] 171. Restore Home 172. Restore Button

[0050] 173. Stumbling block 20. Absence of straight line

[0051] 21. Straight bar 22. Straight home

[0052] 100. Hinge-type spanner with adjustable spacing in different length units

[0053] The present invention relates to a hinge-type spanner whose gap is adjusted in different length units, and is characterized by comprising a handle, a head formed on the upper portion of the handle and having a fixed jaw formed on one side protruding upward and having a guide groove formed horizontally long therein, a movable jaw inserted into the guide groove and reciprocating in the left and right direction along the guide groove, a restoring spring formed on the guide groove and elastically supporting the movable jaw outwardly away from the fixed jaw, and a gap adjusting means for adjusting the gap between the movable jaw and the fixed jaw by setting the left and right position of the movable jaw.

[0054] A hinge-type spanner with adjustable spacing in different length units according to a preferred embodiment of the present invention is described in detail with reference to the attached drawings. Detailed descriptions of well-known functions and configurations that may unnecessarily obscure the gist of the present invention are omitted.

[0055] FIGS. 1 to 6 illustrate a hinge-type spanner in which the interval is adjusted in different length units according to an embodiment of the present invention. FIG. 1 is an open perspective view of the inside of a hinge-type spanner in which the interval is adjusted in different length units according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the hinge-type spanner in which the interval is adjusted in different length units illustrated in FIG. 1. FIG. 3 is a cross-sectional view taken along line AA of the hinge-type spanner in which the interval is adjusted in different length units illustrated in FIG. 1. FIGS. 4, 5, and 6 each illustrate a state of use of the hinge-type spanner in which the interval is adjusted in different length units illustrated in FIG. 1.

[0056] As shown in FIGS. 1 to 3, a hinge-type spanner (100) having an interval adjustable in different length units according to an embodiment of the present invention includes a handle (1), a head (2) formed on the upper portion of the handle (1) and having a fixed jaw (2a) protruding upwardly and fixedly formed on one side, and a guide groove (2b) formed horizontally long inside, a movable jaw (3) inserted into the guide groove (2b) and reciprocating in the left and right direction along the guide groove (2b), a restoring spring (4) formed on the guide groove (2b) and elastically supporting the movable jaw (3) outwardly away from the fixed jaw (2a), and an interval adjusting means for adjusting the interval between the movable jaw (3) and the fixed jaw (2a) by setting the left and right position of the movable jaw (3).

[0057] The above gap adjusting means (10) comprises a first moving ratchet (11) having a plurality of teeth formed long in the left-right direction at the lower portion of the moving jaw (3), the teeth formed at intervals in millimeters (mm), a second moving ratchet (12) having a plurality of teeth formed long in the left-right direction at the lower portion of the moving jaw (3) above the first moving ratchet (11) so as to be interleaved with the teeth of the first moving ratchet (11), the teeth formed at intervals in inches, a first adjusting piece (13) positioned at the lower portion of the moving jaw (3), and having a first adjusting ratchet (13a) formed at the upper portion of one end having a plurality of teeth formed at the same intervals as the first moving ratchet (11), which prevents the moving jaw (3) from being moved outward together with the first moving ratchet (11) when engaged with the first moving ratchet (11), and a first adjusting piece (13) formed at the lower portion of the moving jaw (3). A second adjusting piece (14) formed above the first adjusting piece (13), and having a plurality of teeth at the same interval as the second moving ratchet (12) formed on the upper part of one end thereof, which prevents the moving jaw (3) from being moved outward together with the second moving ratchet (12) when engaged with the second moving ratchet (12), and a second adjusting piece (14) formed with a second adjusting ratchet (14a), which penetrates the head (3) together with the other ends of the first and second adjusting pieces (13, 14) to fix and bind the positions of the first and second adjusting pieces (13, 14), and which is positioned below the first and second adjusting pieces (13, 14) to forcibly raise and lower the first and second adjusting pieces (13, 14) respectively, so that any of the teeth of the first and second adjusting pieces (13, 14) It is composed of an adjusting member (16) that engages one tooth with the teeth of the first moving ratchet (11) or the second moving ratchet (12), and a restoring member (17) that forcibly lowers the first and second adjusting members (13, 14) to release the engagement between the teeth of the first and second adjusting members (13, 14) and the teeth of the first and second moving ratchets (11, 12).

[0058] The hinge-type spanner (100) of the present invention, which has an adjustable gap in different length units, is a tool used when fastening or releasing a bolt or nut, and is used by freely moving the movable jaw (3) fastened to the head (3) in the left and right directions to easily adjust the gap between the jaws (2a, 3) to suit the dimensions of the bolt or nut. The adjustment method is as follows.

[0059] First, as shown in Fig. 4, if it is required to adjust the gap between the fixed jaw (2a) and the movable jaw (3) to suit the dimensions (size) of the bolt or nut, the movable jaw (3) is pushed and moved in the inward direction where the fixed jaw (2a) is positioned so that the gap between the jaws (2a, 3) can be easily adjusted to suit the dimensions of the bolt or nut.

[0060] Of course, the above moving jaw (3) is moved inward without interference of the first and second adjusting ratchets (13a, 14a) of the first and second adjusting pieces (13, 14) together with the first and second moving ratchets (11, 12) due to the characteristic of the ratchet that can move without restriction in one direction, and at this time, the restoring spring (4) is pushed by the moving moving jaw (3) and maintains a contracted state.

[0061] When the gap adjustment between the jaws (2a, 3) is completed through the movement of the moving jaw (3) as described above, the first adjusting ratchet (13a) of the first adjusting piece (13) supported upwardly based on the hinge pin (15) by the adjusting part (16) is prevented from moving outward by the first moving ratchet (11) or the second adjusting ratchet (14a) of the second adjusting piece (14) engaging the second moving ratchet (12), thereby allowing the adjusted gap between the jaws (2a, 3) to be firmly maintained.

[0062] For example, if the dimensions of the nut or bolt head are manufactured in millimeters (mm), the first adjusting ratchet (13a) of the first adjusting piece (13) will engage with the first moving ratchet (11) of the moving jaw (3) to compensate for the dimensions of the nut or bolt manufactured in millimeters, so that it will be suitably adjusted. Conversely, if the dimensions of the nut or bolt head are manufactured in inches, the second adjusting ratchet (14a) of the second adjusting piece (14) will engage with the second moving ratchet (12) of the moving jaw (3) to compensate for the dimensions of the nut or bolt manufactured in inches, so that it will be suitably adjusted.

[0063] At this time, the important thing is that the first and second adjustment pieces (13, 14) that are forcibly raised and lowered by the adjustment part (16) are firmly fixed based on the hinge pin (15), and the first and second adjustment ratchets (13a, 14a) of the first and second adjustment pieces (13, 14) are raised and lowered to engage and engage with the first and second moving ratchets (11, 12) of the moving jaw (3), so that even if a strong force (load) is generated in the moving jaw (3) area during the process of using the spanner as shown in FIG. 5, the left and right movement of the first and second adjustment pieces (13, 14) is blocked at the source, and the very firm fixation of the moving jaw (3) is induced together with the first and second moving ratchets (11, 12) that are engaged and fixed by the first and second adjustment ratchets (13a, 14a), so that the gap between the jaws (2a, 3) is minutely reduced during the process of using the spanner. This ensures that the product has excellent usability safety by stably preventing the occurrence of such phenomena.

[0064] Meanwhile, as shown in FIGS. 1 to 3, the adjustment part (16) includes an adjustment groove (161) formed inside the head (3) to accommodate the first and second adjustment pieces (13, 14), a first adjustment spring (162) positioned at the lower portion of the adjustment groove (161) to elastically support one end of the first adjustment piece (13) upward, a second adjustment spring (163) positioned at the lower portion of the adjustment groove (161) to be horizontally spaced from the first adjustment spring (162) to elastically support one end of the second adjustment piece (14) upward, a first support groove (164a) formed at the lower portion of one end of the first adjustment piece (13) to allow the upper portion of the first adjustment spring (162) to come into internal contact, and a first interference groove (164a) to prevent contact between the first adjustment piece (13) and the upper portion of the second adjustment spring (163). A first support member (164) that allows only the first adjustment piece (13) to be elastically supported by the first adjustment spring (162) including a prevention groove (164b), and a second support groove (165a) that is formed at a lower end of one end of the second adjustment piece (14) so ​​that the upper portion of the second adjustment spring (163) is in contact with the first interference prevention groove (164b) of the first support member (164) and is formed at a lower position than the first interference prevention groove (164b) and at the same position as the first support groove (164a) of the first support member (164) and is formed at a higher position than the first support groove (164a) to prevent contact between the second adjustment piece (14) and the upper portion of the first adjustment spring (162) by the second adjustment spring (163). It is configured to include a second support member (165) that allows only the second adjustment member (14) to be elastically supported, and a guide step (166) that positions the lower height of the second moving ratchet (12) higher than the lower height of the first moving ratchet (11) so that it is formed between the lower portions of the first moving ratchet (11) and the second moving ratchet (12).

[0065] Here, the adjustment part (16) is configured so that the first adjustment piece (13) is individually elastically supported through the first adjustment spring (162) and the second adjustment piece (14) is individually elastically supported through the second adjustment spring (163), so that the first and second adjustment pieces (13, 14) can be selectively engaged with the first and second moving ratchets (11, 12) positioned at the upper portion, respectively. As shown in FIG. 5, by implementing the configuration as described above, the following effects can be expected.

[0066] First, the upper part of the first adjusting spring (162) is inserted into the first support groove (164a) of the first adjusting piece (13) to directly elastically support the first adjusting piece (13), and at this time, the second interference prevention groove (165b) of the second adjusting piece (14) prevents contact (interference) between the first adjusting spring (162) and the second adjusting piece (14), and conversely, the upper part of the second adjusting spring (163) is inserted into the second support groove (165a) of the second adjusting piece (14) to directly elastically support the second adjusting piece (14), and at this time, the first interference prevention groove (164b) of the first adjusting piece (13) prevents interference between the second adjusting spring (163) and the first adjusting piece (13), so that The size (diameter) of the first and second adjusting springs (162, 163) can be formed as large as the width (thickness) of the first and second adjusting pieces (13, 14), so that the size of the first and second adjusting springs (162, 163) can be manufactured as large as possible even though the adjusting section (16) is formed in the narrow space of the head (3).

[0067] Accordingly, by securing excellent elasticity through the first and second adjusting springs (162, 163), not only can the smooth operation of the first and second adjusting pieces (13, 14) be secured to induce stable use of the product, but also, it is expected that the effect of securing excellent manufacturing convenience of the product can be expected by significantly alleviating the difficulty of assembly that may arise when parts are too small during manufacturing and assembling the product.

[0068] Second, the first and second adjusting pieces (13, 14) are configured to operate individually through the configuration of the first and second adjusting springs (162, 163) and the first and second supporting members (164, 165), and at the same time, the first adjusting ratchet (13a) is prevented from encroaching on the second moving ratchet (12) and the second adjusting ratchet (14a) is prevented from encroaching on the first moving ratchet (11) through the configuration of the guide step (166), thereby significantly reducing the number of parts consumed in manufacturing compared to a conventional spanner.

[0069] Therefore, compared to conventional spanners, the time and parts required to assemble the product can be significantly reduced, which is expected to have the effect of securing excellent productivity and price competitiveness of the product.

[0070] Meanwhile, as shown in FIGS. 1 to 3, the restoration part (17) is formed on the upper portions of the first and second adjusting pieces (13, 14), and includes a restoration groove (171) having a slope (171a) formed on one side thereof, a catch groove (172a) formed inside thereof to be connected to a catch piece (173) of the head (3) so as to be able to move forward and backward, a restoration button (172) that is extended at one end and positioned in the restoration groove (171), and a catch piece (173) formed on the head (3) and connected to the catch groove (172a) of the restoration button (172) to guide the forward and backward movement of the restoration button (172).

[0071] A tolerance is formed between the above-mentioned catch groove (172a) and the above-mentioned catch piece (173).

[0072] That is, when the use of the spanner is completed and restoration of the moved movable jaw (3) is required, as shown in FIG. 4c, by pressing the restoration button (172) of the restoration part (17), one end of the original button (172) rises along the inclined surface (171a) of the restoration groove (171) and lowers the first and second adjusting pieces (13, 14), thereby releasing the connection between the first and second adjusting pieces (13, 14) and the first and second moving ratchets (11, 12). At this time, the movable jaw (3) is moved outward by the elastic force of the restoration spring (4) that expands and restores, so that it is easily restored to its original position.

[0073] After that, when the above restoration button (172) is released, the lowered first and second control pieces (13, 14) are restored to the up and down position by the elastic support force of the control part (16), and one end of the restoration button (172) is pushed outward through the inclined surface (171a) to return to the original position.

[0074] At this time, a clearance is secured between the catch groove (172a) and the catch piece (173) so that the restoration button (172) can rotate like a seesaw based on the catch piece (173), so that a load is generated between the catch groove (172a) of the restoration button (172) and the catch piece (173) when it is lifted by the first and second adjusting pieces (13, 14) and restored to the original position (backward), thereby preventing the phenomenon of it getting caught in advance.

[0075] In addition, as shown in FIGS. 1 to 3, it further comprises a straightening member (20) to secure the straightness of the main button (172);

[0076] The above straight member (20) is configured to include a straight bar (21) formed long from the restoration button (172) toward the head (3), and a straight groove (22) formed on the side of the head (3) to guide forward and backward movement of the straight bar (21), and a clearance is formed between the straight bar (21) and the straight groove (22).

[0077] That is, as shown in Fig. 6, when the main button (172) is pressed, the straight member (20) ensures the straightness of the restore button (172) by moving the straight bar (21) forward together with the restore button (172) under the guidance of the straight groove (22) so that the first and second control pieces (13, 14) can be stably pressed by the restore button (172).

[0078] After that, when the restoration button (172) is released, the restoration button (172) is restored to the original position together with the straight bar (21) that moves backwards under the guidance of the straight groove (22). At this time, a gap is formed between the straight bar (21) and the straight groove (22) so as not to interfere with the rotation of the restoration button (172), so that the phenomenon of the catch (173) or the straight bar (21) being caught is reliably prevented.

[0079] The hinge-type spanner (100) of the present invention, which is composed of the above components and has an adjustable gap in different length units, can be appropriately adjusted in accordance with the dimensions of bolts or nuts manufactured in length units of millimeters or inches, thereby ensuring excellent usability of the spanner. In addition, since the adjusting piece (13, 14), in which the adjusting ratchet (13a, 14a) that engages with the moving ratchet (11, 12) of the moving jaw (3) is formed, is fixed based on the hinge pin (15), even if a strong force (load) is generated in the area of ​​the moving jaw (3), the left-right movement of the adjusting piece (13, 14) is firmly prevented, so that the movement of the moving jaw (3) is fundamentally blocked together with the moving ratchet (11, 12) that is fixed by the adjusting piece (13, 14), thereby preventing various problems that may occur when the gap between the fixed jaw (2a) and the moving jaw (3) is slightly widened during the process of using the spanner. It has the effect of solving problems and ensuring excellent usability safety of the product.

[0080] In addition, since the diameter of the first and second adjusting springs (162, 163) can be formed as large as the width of the first and second adjusting pieces (13, 14) through the structure of the first and second supporting members (164, 165) of the adjusting part (16), stable operation of the first and second adjusting pieces (13, 14) can be secured, while convenience of product assembly can be provided, thereby securing excellent productivity of the product.

[0081] Moreover, since the use of parts such as split plates used in conventional spanners is not required through the guide step (166) structure of the above-mentioned control unit (16), the time and parts required for assembling the product can be significantly reduced, thereby securing excellent productivity and price competitiveness of the product.

[0082] In addition, a gap is formed between the catch groove (172a) and the catch piece (173) of the restoration button (172) that constitutes the restoration part (17), so that a clearance is secured so that the restoration button (172) can rotate like a seesaw with respect to the catch piece (173), so that a load is generated between the catch groove (172a) and the catch piece (173) during the restoration process of the restoration button (172), and thus the phenomenon of being caught is stably prevented, thereby ensuring the structural safety of the product.

[0083] A hinge-type spanner (100) having an interval adjusted in different length units according to an embodiment of the present invention having the above configuration is used by suitably adjusting the interval between the fixed jaw (2a) and the movable jaw (3) as follows.

[0084] First, if it is required to adjust the gap between the jaws (2a, 3) to suit the dimensions of the bolt or nut to be used, as shown in Fig. 4, the bolt or nut is positioned between the fixed jaw (2a) and the movable jaw (3), and the movable jaw (3) is pushed inward to move so that the gap between the jaws (2a, 3) is adjusted to suit the dimensions of the bolt or nut.

[0085] Here, the first and second moving ratchets (11, 12) of the moving jaw (3) moving inward and the first and second adjusting ratchets (13a, 14a) of the first and second adjusting pieces (13, 14) do not interfere with the movement, thereby ensuring free movement of the moving jaw (3), and when the movement of the moving jaw (3) is completed, the first adjusting ratchet (13a) and the first moving ratchet (11) or the second adjusting ratchet (14a) and the second moving ratchet (12) are engaged, thereby firmly fixing the position of the moving jaw (3), thereby preventing the gap between the jaws (2a, 3) from widening.

[0086] Then, as shown in Fig. 5, even if a strong load is generated toward the movable jaw (3) during the process of using the spanner, the structural characteristics of the first and second adjusting pieces (13, 14) that are engaged with the hinge pin (15) and operate prevent the slight left-right movement (shaking) of the first and second adjusting pieces (13, 14), thereby stably preventing the phenomenon of damage or breakage of bolts or nuts due to slight gapping between the fixed jaw and the movable jaw in a conventional spanner.

[0087] In addition, the control unit (16) can secure the size of the first and second control springs (162, 163) that elastically support the first and second control pieces (13, 14) as large as possible, thereby ensuring stable operation of the control unit (16).

[0088] Then, as shown in Fig. 6, when the use of the spanner is completed and restoration of the moved movable jaw (3) is required, the restoration button (172) of the restoration part (17) is pressed to release the engagement of the first and second adjusting ratchets (13a, 14a) and the first and second moving ratchets (11, 12), so that the movable jaw (3) can be easily restored to its original position.

[0089] At this time, due to the tolerance between the catch groove (172a) and the catch piece (173) of the above restoration button (172), the above restoration button (172) can be restored while rotating smoothly, so that the phenomenon of the catch piece (173) being lifted by the first and second adjusting pieces (13, 14) and restored to the original position (backward) getting caught in the catch groove (172a) of the above restoration button (172) and not being restored is prevented in advance.

[0090] While the present invention has been described with reference to the embodiments illustrated in the accompanying drawings, these are merely illustrative and are not limited to the above-described embodiments. Those skilled in the art will readily appreciate that various modifications and equivalent embodiments are possible. Furthermore, it should be understood that modifications are possible by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, the scope of the claims in the present invention is not limited to the detailed description, but rather by the claims set forth below and their technical spirit.

Claims

1. A spanner whose gap is adjustable, comprising a handle (1), a head (2) formed on the upper portion of the handle (1) and having a fixed jaw (2a) protruding upwardly and fixedly formed on one side, and a guide groove (2b) formed horizontally and long inside, a movable jaw (3) inserted into the guide groove (2b) and reciprocating in the left and right directions along the guide groove (2b), a restoring spring (4) formed on the guide groove (2b) and elastically supporting the movable jaw (3) outwardly away from the fixed jaw (2a), and a gap adjusting means for setting the left and right position of the movable jaw (3) to adjust the gap between the movable jaw (3) and the fixed jaw (2a), The above spacing adjustment means (10) is A first moving ratchet (11) in which a number of teeth are formed long in the left and right directions at the lower portion of the above moving member (3), and the teeth are formed at intervals of millimeters (mm), A second moving ratchet (12) having a plurality of teeth formed long and interlaced with the teeth of the first moving ratchet (11) in the left-right direction on the lower portion of the above moving member (3), and the teeth formed at intervals of inches, A first adjusting member (13) is formed at the lower part of the above moving member (3), and has a plurality of teeth formed at the upper part of the first moving member (11) at the same interval as the first moving ratchet (11), and when engaged with the first moving ratchet (11), a first adjusting ratchet (13a) is formed to prevent the moving member (3) from being moved outward together with the first moving ratchet (11). A second adjusting member (14) formed on the upper part of one end, which is positioned at the lower end of the above-mentioned moving member (3) and formed above the above-mentioned first adjusting member (13), and which has a plurality of teeth formed at the same interval as the above-mentioned second moving ratchet (12), and which, when engaged with the above-mentioned second moving ratchet (12), prevents the above-mentioned moving member (3) from being moved outward together with the above-mentioned second moving ratchet (12), A hinge pin (15) that penetrates the head (3) together with the other ends of the first and second adjustment pieces (13, 14) to securely fix the positions of the first and second adjustment pieces (13, 14), and that rotatably connects the first and second adjustment pieces (13, 14), An adjusting member (16) positioned below the first and second adjusting members (13, 14) and forcibly lifting the first and second adjusting members (13, 14) upwards respectively so that one of the teeth of the first and second adjusting members (13, 14) engages with the teeth of the first moving ratchet (11) or the second moving ratchet (12), A hinge-type spanner whose interval is adjusted in different length units, characterized in that it comprises a restoration part (17) that forcibly lowers the first and second adjustment pieces (13, 14) to release the engagement between the teeth of the first and second adjustment pieces (13, 14) and the teeth of the first and second moving ratchets (11, 12).

2. In paragraph 1, The above control unit (16) is An adjustment groove (161) formed inside the head (3) to accommodate the first and second adjustment pieces (13, 14), A first adjustment spring (162) located at the lower part of the above adjustment piece (161) and elastically supporting one end of the first adjustment piece (13) upward, A second adjustment spring (163) positioned horizontally apart from the first adjustment spring (162) at the bottom of the above adjustment piece (161) and elastically supporting one end of the second adjustment piece (14) upwardly, A first support member (164) formed at a lower end of the first adjustment member (13) so that the upper portion of the first adjustment spring (162) can be brought into contact with the first adjustment member (13), and a first interference prevention groove (164b) formed to prevent contact between the first adjustment member (13) and the upper portion of the second adjustment spring (163), so that only the first adjustment member (13) can be elastically supported by the first adjustment spring (162), A second support member (165) formed at a lower end of the second adjustment member (14) so ​​that the upper portion of the second adjustment spring (163) is in contact with the inner portion, and includes a second support groove (165a) formed at the same position as the first interference prevention groove (164b) of the first support member (164) and lower than the first interference prevention groove (164b), and a second interference prevention groove (165b) formed at the same position as the first support groove (164a) of the first support member (164) and higher than the first support groove (164a) to prevent contact between the second adjustment member (14) and the upper portion of the first adjustment spring (162), so that only the second adjustment member (14) can be elastically supported by the second adjustment spring (163). A hinge-type spanner whose spacing is adjusted in different length units, characterized in that it comprises a guide step (166) formed between the lower portions of the first moving ratchet (11) and the second moving ratchet (12) by positioning the lower height of the second moving ratchet (12) higher than the lower height of the first moving ratchet (11).

3. In paragraph 1, The above restoration part (17) is, A restoration groove (171) formed on the upper portion of each of the first and second adjustment pieces (13, 14) and having an inclined surface (171a) formed on one side, Inside, a catch groove (172a) is formed to be connected to the catch piece (173) of the head (3) so that it can move forward and backward, and at one end, a restoration button (172) is formed that is extended long and positioned in the restoration groove (171), It is formed on the head (3) and is configured to include a catch piece (173) that is inserted into the catch groove (172a) of the restoration button (172) and guides the forward and backward movement of the restoration button (172). A gap is formed between the above-mentioned catch groove (172a) and the above-mentioned catch piece (173), A hinge-type spanner whose interval is adjusted in different length units, characterized in that when the above restoration button (172) is pressed, one end of the restoration button (172) rises along the inclined surface (171a) of the restoration groove (171) and lowers the first and second adjustment pieces (13, 14) to release the connection between the first and second adjustment pieces (13, 14) and the first and second moving ratchets (11, 12).

4. In paragraph 3, It is configured to further include a straightening member (20) to secure the straightness of the above main button (172); The above straight member (20) is A straight bar (21) formed long toward the head (3) from the above restoration button (172), It is configured to include a straight groove (22) formed on the side of the head (3) to guide the forward and backward movement of the straight bar (21). A hinge-type spanner whose spacing is adjusted in different length units, characterized in that a tolerance is formed between the straight bar (21) and the straight groove (22).

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