Ergonomic Leveler

The present invention relates to a leveler, and more particularly to an ergonomic leveler that can abut stably, is easy to hold, and is effortless to rotate.

In order to ensure that tiles can remain flat without unevenness when attached to the floor or wall, a leveler is generally used during the process of attaching the tiles. After two adjacent tiles are clamped and pressed by the leveler, it is ensured that the two adjacent tiles are held at a consistent height and position. With reference to, a conventional levelerhas a baseand a spin cover. The basehas a clamping board, a connecting slice, and a connecting rod. The connecting sliceis connected to the clamping boardand the connecting rod. The spin coveris rotatably connected to the connecting rodof the baseto hold and clamp the two adjacent tiles between the baseand the spin cover.

Furthermore, in order to reduce the weight of the spin cover, the spin coverof the conventional leveleris designed as a hollow structure to form multiple ribsat spaced intervals in a middle section of the spin cover. Each one of the ribsis a straight strip-shaped body and is disposed inclined on the middle section of the spin cover. In use, fingers of a user press against the ribs, rotate the spin coverrelative to the base, and then adjust a distance between the spin coverand the base, thereby performing a clamping operation on the two adjacent tiles.

However, the conventional levelercan provide a leveling effect of clamping and pressing two adjacent tiles. With reference to, when the user rotates the spin coverof the conventional leveler, since each one of the ribsof the spin coveris a straight strip, the user's curved fingers cannot abut the ribsfirmly and closely, and it is easy to form gaps between the user's fingers and the corresponding ribs. Then the user cannot conveniently hold and rotate the spin coverand must apply additional force to hold and rotate the spin coverrelative to the base, and this is relatively inconvenient and laborious.

In addition, since the user's fingers cannot firmly abut on the corresponding ribs, the user must press against the ribsat a specific holding angle, such as from top to bottom to increase the contact areas between the fingers and the ribs. However, the specific holding angle is not ergonomic, may make the user easily feel uncomfortable when rotating the spin coverwith force and unable to rotate smoothly, and this relatively increases operational inconvenience. Therefore, regarding the above-mentioned problems and deficiencies, the conventional levelerneeds to be improved.

The ergonomic leveler in accordance with the present invention mitigates or obviates the aforementioned problems.

The main objective of the present invention is to provide an ergonomic leveler that can abut stably, is easy to hold, and is effortless to rotate.

The ergonomic leveler in accordance with the present invention has a base and a spin cover. The base has a clamping board, a connecting slice, and a connecting rod. The connecting slice is connected to the clamping board and the connecting rod. The spin cover is detachably connected to the base and has a screw portion and a spin portion. The screw portion is disposed on a top of the spin cover and is connected to the connecting rod. The spin portion is connected to the screw portion, is a cover structure with an opening facing downward, and has at least one rotating strip. The at least one rotating strip is disposed curvedly on and extends out of an external surface of the spin portion along a direction from the screw portion toward the opening. Each one of the at least one rotating strip has an abutted-curved face disposed on an outer side of the rotating strip away from the screw portion.

Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

With reference to, an ergonomic leveler in accordance with the present invention has a baseand a spin cover.

With reference to, the basehas a clamping board, a connecting slice, and a connecting rod. The clamping boardhas a clamping facebeing flat and disposed on a top side of the clamping board. Furthermore, the clamping boardhas at least one clamping portiondisposed on each one of two ends of the clamping board. Each one of the at least one clamping portionhas multiple abutted teetharranged in a stepped manner on a bottom surface of the clamping portion, and this can increase the contact area and friction between the clamping boardand adhesion fluids such as cement to dispose the clamping boardfirmly on the cement. Preferably, the clamping boardhas two said clamping portionsdisposed on each one of the two ends of the clamping boardat a spaced interval to form a gapbetween the two said clamping portionsand gradually expanded from the inside to the outside.

The connecting sliceis connected to the clamping faceof the clamping boardbetween the said clamping portions, is extended upwardly from the top side of the clamping board, and has a through hole. The through holeis formed through the connecting slicebetween the clamping boardand the connecting slice. The connecting slicecan be broken relative to the clamping boardvia the through hole. The connecting rodis connected to an edge of the connecting sliceaway from the clamping boardand has a threadformed on an external surface of the connecting rod.

With reference to, the spin coveris detachably connected to the baseand has a screw portionand a spin portion. The screw portionis disposed on a top of the spin cover, is connected to the connecting rodof the base, and has a threaded holeformed through the screw portionand selectively screwed with the threadof the connecting rod. Then the spin covercan be moved relative to the basevia an engagement between the screw portionand the connecting rod. Furthermore, the screw portionhas multiple protruded ribsformed on an external surface of the screw portionat spaced intervals for allowing a user to firmly abut against the screw portionto rotate the spin cover.

With reference to, the spin portionis connected to the screw portion, is a cover structure with an openingfacing downward, and has at least one rotating strip. The at least one rotating stripis disposed curvedly on and extends out of an external surface of the spin portionalong a direction from the screw portiontoward the opening. Each one of the at least one rotating striphas an abutted-curved facedisposed on an outer side of the rotating stripaway from the screw portion. Furthermore, the spin portionof the spin coverhas three said rotating strips, each one of the three said rotating stripshas two ends, one of the two ends of each said rotating stripis connected to the screw portion, and the other one of the two ends of each said rotating stripextends radially toward the opening. Additionally, with reference to, each two adjacent ones of the three said rotating stripsare arranged on the spin portionat an included angle of 120 degrees.

Preferably, with reference to, the spin coverhas an abutted holeformed through an external surface of the spin coverbetween each two adjacent ones of the three said rotating stripsand being a non-circular structure. The spin coverhas an auxiliary contact surfacedisposed between an outer periphery of each abutted holeand each two adjacent rotating stripsand connected to the abutted-curved faceof one of the two adjacent rotating strips. When a user holds the rotating stripsto rotate the spin cover, the fingers of the user abut the abutted-curved facesand the auxiliary contact surfaces, firstly, the contact area between the user's fingers and the spin covercan be increased, so that the spin covercan be rotated stably and firmly. Secondly, with structures of curved design of the rotating strips, the abutted-curved faces, and the auxiliary contact surfaces, the user's fingers can conveniently abut the rotating stripsat comfortable angles when holding the spin cover, and this can provide an ergonomic structure.

In addition, with reference to, the spin coverhas a reminder symboldisposed on at least one of the auxiliary contact surfacesto allow a user to know a rotation direction of the spin cover. Furthermore, the spin coverhas a pressing flangeannularly formed on a bottom of the spin portion.

With reference to, when the ergonomic leveler of the present invention is in use, the fingersof a user abut the abutted-curved facesof the rotating stripsand the auxiliary contact surfacesat the same time, and this can allow the user's fingersto contact the spin coverwith a large area (i.e. three fingers snap shown in), so that the user can contact the spin coverclosely without applying additional force and can rotate the spin coverrelative to the baseconveniently and effortlessly. Furthermore, the abutted holebetween each two adjacent rotating stripscan allow the user's fingersto extend into an interior of the spin cover, and can enable each fingerto get closer to the corresponding abutted-curved faceand the corresponding auxiliary contact surface, and this can provide a stable-abutting effect. In addition, the structural arrangement of each rotating stripextended curvedly, each abutted-curved facesbeing an arc face, and each auxiliary contact surfacedisposed on the outer periphery of the non-circular abutted holemakes the spin coverergonomic, and allows the user's fingersto hold the spin coverat a comfortable angle for rotation, thereby providing a labor-saving rotation effect.

With reference to, to use the ergonomic leveler of the present invention for leveling operation, first, the baseof the ergonomic leveler is put on a cement, a contact area between the clamping boardand the cementcan be increased by the abutted teethof each clamping portionof the clamping board, and the basecan be firmly installed on the cementvia the clamping board. Then, two tilesare respectively put and arranged on two sides of the connecting sliceto enable bottom surfaces of the two tilesto contact the clamping faceof the clamping board, and the screw portionof the spin coveris connected to the connecting rod. With reference to, fingersof a user abut against the rotating stripsto rotate the spin coverrelative to the baseand to move toward the two tilesto enable the pressing flangeto press against top surfaces of the two tiles. At this time, the two tileswill be clamped between the clamping boardof the baseand the pressing flangeof the spin cover, thereby providing a leveling effect to the two tiles.

According to the above-mentioned structural relationships and features of the ergonomic leveler of the present invention, the at least one rotating stripwith the abutted-curved facedisposed on the spin coverallows the user to hold the spin coverto rotate relative to the baseand allows the fingersof the user to firmly abut against the spin cover. Then the spin covercan be held firmly and stably without applying additional force and can be rotated relative to the baseconveniently and be labor-saving in use. Furthermore, the structural arrangement of each rotating stripextended curvedly, each abutted-curved facesbeing an arc face, and each auxiliary contact surfacedisposed on the outer periphery of the non-circular abutted holemakes the spin coverergonomic, and allows the user's fingersto hold the spin coverat a comfortable angle for rotation, thereby providing a labor-saving rotation effect.

Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and features of the utility model, the disclosure is illustrative only. Changes may be made in the details, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.