Motorized mount, motorized device and adjustable motorized device for laser level meter device

Abstract

The utility model provides a motorized mounting piece for a laser level meter device, a motorized device and an adjustable motorized device. Various motorized device designs with backlash detection systems are shown. In a particular embodiment, a motorized laser level gauge mount includes a rotatable laser platform, a housing cover, a housing, a gear train, and a backlash detection system. A backlash detection system is coupled to the motor and the laser platform and is configured to determine when backlash is removed from the gear train.

Description

[0001] Cross-references to related patent applications

[0002] This application claims the benefit of and priority to U.S. Provisional Application No. 63 / 356,158, filed on June 28, 2022, U.S. Provisional Application No. 63 / 348,788, filed on June 3, 2022, and U.S. Provisional Application No. 63 / 254,234, filed on October 11, 2021, which are incorporated herein by reference in their entirety. Background Art

[0003] The utility model generally relates to the field of motorized devices. More specifically, the utility model relates to a motorized device, such as a laser projection device (ie, a cross-line laser level, a flat laser level, etc.), having a backlash detection and / or removal system. Utility Model Content

[0004] One embodiment of the utility model relates to a motorized device, such as a motorized mount for a laser level. The motorized mount includes: a housing; and a platform, which is rotationally engaged with the housing. The platform includes a laser level engagement structure. The motorized mount further includes a platform adjustment mechanism, which is coupled to the platform so that the platform adjustment mechanism drives the rotation of the platform. The platform adjustment mechanism includes a stepper motor and a gear train. The stepper motor is positioned within the housing and moves stepwise. The gear train is coupled to the stepper motor. The motorized mount further includes a backlash detection system, which is coupled to the stepper motor and the platform. The backlash detection system includes a monitoring unit, which is configured to detect when backlash is removed from the platform adjustment mechanism. When the backlash has been removed from the platform adjustment mechanism, the monitoring unit counts the steps of the stepper motor so that the platform moves the same distance during the clockwise rotation of the platform as during the counterclockwise rotation of the platform.

[0005] Another embodiment of the utility model relates to a motorized device. The motorized device includes: a housing; and a platform, which is rotationally engaged with the housing. The motorized device further includes a platform adjustment mechanism, which is coupled to the platform so that the platform adjustment mechanism drives the rotation of the platform. The platform adjustment mechanism includes a motor and a gear train. The motor is positioned within the housing. The gear train is coupled to the motor and includes a first gear having teeth and a second gear having teeth. The motorized device further includes a backlash detection system, which is coupled to the gear train. The backlash detection system includes a monitoring unit, which is configured to detect when the teeth of the first gear directly contact the teeth of the second gear. The backlash detection system further includes: an output drive, which is coupled to the gear train; and an output slide, which is engaged with the output drive and coupled to the platform.

[0006] Another embodiment of the utility model relates to an adjustable motorized device. The motorized device includes: a housing; and a platform, which is rotationally engaged with the housing by one or more ribs extending upward from the housing. The motorized device further includes a platform adjustment mechanism, which is coupled to the platform. The platform adjustment mechanism includes: a motor, which is positioned within the housing; a gear train, which is coupled to the motor; and an output slide, which is coupled to the platform. The motorized device further includes a backlash detection system, which is coupled to the gear train. The backlash detection system includes a microcontroller, which is configured to detect when the backlash is removed from the gear train. The backlash detection system includes an output driver, which is coupled to the gear train, and the output driver includes a rotating column. The backlash detection system further includes: a first pin, which is coupled to the output slide; and a second pin, which is spaced a certain distance from the first pin and coupled to the output slide.

[0007] Additional features and advantages will be set forth in the following detailed description, and those skilled in the art will readily understand from the description or will recognize in part these additional features and advantages by practicing the embodiments as described in this written description and claims and in the accompanying drawings. It should be understood that both the above general description and the following detailed description are exemplary.

[0008] The accompanying drawings are included to provide a further understanding and are incorporated in and constitute a part of this specification. The drawings illustrate one or more embodiments and together with the description serve to explain principles and operation of the various embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The present application will be more fully understood from the following detailed description taken in conjunction with the accompanying drawings, in which like reference numerals refer to like elements, and in which:

[0010] Figure 1 is a front perspective view of a motorized laser level mount according to an exemplary embodiment.

[0011] Figure 2 According to an exemplary embodiment Figure 1 A front perspective view of a motorized laser level mount with the laser platform in a first, unrotated position.

[0012] Figure 3 According to an exemplary embodiment Figure 1 A front perspective view of a motorized laser level mount with the laser platform in a second rotated position.

[0013] Figure 4 According to an exemplary embodiment Figure 1 Front perspective view of a motorized laser level mount with the laser platform in a third rotated position.

[0014] Figure 5 According to an exemplary embodiment Figure 1 Right side perspective view of a motorized laser level mount.

[0015] Figure 6 According to an exemplary embodiment Figure 1 Bottom perspective view of a motorized laser level mount.

[0016] Figure 7 According to an exemplary embodiment Figure 1 A partially exploded bottom perspective view of a motorized laser level mount.

[0017] Figure 8 According to an exemplary embodiment Figure 1 Rear perspective view of the motorized laser level mount with the laser platform removed.

[0018] Fig. 9 According to an exemplary embodiment Figure 1 Detailed perspective view of the inward facing portion of the housing cover of the motorized laser level mount.

[0019] Fig.10 According to an exemplary embodiment Figure 1 Detailed perspective view of the inward facing portion of the laser platform of the motorized laser level mount.

[0020] Fig.11 According to an exemplary embodiment Figure 1A cross-sectional view of the rotary coupling mechanism of a motorized laser level mount.

[0021] Fig.12 According to an exemplary embodiment Figure 1 Front perspective view of a motorized laser level with the laser platform and housing cover removed.

[0022] Fig.13 According to an exemplary embodiment Figure 1 A partially exploded perspective view of an inward facing portion of the laser platform and a portion of the gear section of a motorized laser level mount.

[0023] Fig.14 According to an exemplary embodiment Figure 1 A perspective view of the gear mechanism of a motorized laser level mount.

[0024] Fig.15 According to an exemplary embodiment Figure 1 Detailed perspective view of the worm drive of a motorized laser level.

[0025] Fig.16 According to an exemplary embodiment Fig.14 Cross-sectional view of a worm gear.

[0026] Fig.17 is a front perspective view of a motorized laser level mount according to another exemplary embodiment.

[0027] Fig.18 According to an exemplary embodiment Fig.17 Right side perspective view of a motorized laser level mount.

[0028] Fig.19 According to an exemplary embodiment Fig.17 Rear perspective view of the motorized laser level mount with the laser platform removed.

[0029] Fig. 20 According to an exemplary embodiment Fig.17 Detailed perspective view of the inward facing portion of the housing cover of the motorized laser level mount.

[0030] Fig.21 According to an exemplary embodiment Fig.17 Detailed perspective view of the inward facing portion of the laser platform of the motorized laser level mount.

[0031] Fig. 22 According to an exemplary embodiment Fig.17 A cross-sectional view of the rotary coupling mechanism of a motorized laser level mount.

[0032] Fig.23 According to an exemplary embodiment Fig.17 A perspective view of the motorized laser level mount with the backlash detection system and laser platform and housing cover removed.

[0033] Fig.24 According to an exemplary embodiment Fig.17 A partially exploded perspective view of the inward facing portion of the laser platform and various internal components of a motorized laser level mount.

[0034] Fig.25 According to an exemplary embodiment Fig.17 A perspective view of the gear mechanism of a motorized laser level mount.

[0035] Fig.26 According to an exemplary embodiment Fig.17 Detailed perspective view of the worm drive of a motorized laser level.

[0036] Fig. 27 According to an exemplary embodiment Fig.26 Cross-sectional view of a worm gear.

[0037] Fig.28 is according to an exemplary embodiment when the backlash detection system is in the first rotational position Fig.17 A rear perspective view of a motorized laser level mount with a portion of the output slide removed.

[0038] Fig.29 is according to an exemplary embodiment when the backlash detection system is in the second rotational position Fig.17 A rear perspective view of a motorized laser level mount with a portion of the output slide removed.

[0039] Fig.30 is a top view of a backlash detection system in a neutral rotational position according to an exemplary embodiment.

[0040] Fig.31 is a graph of motor current for a motorized laser level mount with a backlash detection system according to another exemplary embodiment.

[0041] Fig.32 is a top plan view of a motorized laser level mount with a backlash detection system according to another exemplary embodiment.

[0042] Fig.33 According to an exemplary embodiment, Figure 1 or Fig.17 A perspective view of a motorized laser level mount used in conjunction with a remote control.

[0043] Fig.34 According to an exemplary embodiment Fig.33 Exploded perspective view of the remote control with the dial removed.

[0044] Fig.35 According to an exemplary embodiment Fig.33 An exploded perspective view of a portion of the housing and dial mechanism of a remote control.

[0045] Fig.36 According to an exemplary embodiment Fig.35 A plan view of a portion of the dial mechanism.

[0046] Fig.37 According to an exemplary embodiment Fig.33 A bottom perspective view of a remote control.

[0047] Fig.38 According to an exemplary embodiment Fig.33 Bottom view of the remote control with the battery compartment cover in the open position.

[0048] Fig.39 According to another exemplary embodiment, Figure 1 or Fig.17 A perspective view of a motorized laser level mount used in conjunction with a remote control.

[0049] Fig.40 According to another exemplary embodiment, Figure 1 or Fig.17 A perspective view of a motorized laser level mount used in conjunction with a remote control.

[0050] Fig.41 According to an exemplary embodiment Fig.40 Exploded perspective view of the remote control components.

[0051] Fig.42 According to an exemplary embodiment Fig.40 A bottom perspective view of a remote control.

[0052] Fig.43 According to an exemplary embodiment Fig.40 Bottom view of the remote control with the battery compartment cover removed.

[0053] Fig.44 is a partially exploded view of a motorized laser level mount according to another exemplary embodiment.

[0054] Fig.45 According to an exemplary embodiment Fig.44A perspective view of the gear mechanism of a motorized laser level mount.

[0055] Fig.46 According to an exemplary embodiment Fig.44 Detailed perspective view of the worm drive of a motorized laser level.

[0056] Fig.47 According to an exemplary embodiment Fig.46 Cross-sectional view of a worm gear. DETAILED DESCRIPTION

[0057] Referring generally to the accompanying drawings, various embodiments of motorized devices (such as laser projection mounts) are shown. In general, the motorized laser projection mounts discussed herein are configured to support a laser level (such as a line laser level or a flat laser level) and can be set on various surfaces (e.g., a floor, a table, a tripod, etc.). As discussed herein, the applicant has made a series of improvements to the functionality of the laser level mount. The applicant believes that the described motorized mounting device and remote control device allow the user to adjust the laser position more quickly from a certain distance, thereby providing a faster and easier alignment process. Therefore, the user can more efficiently complete the project for which the projected laser beam needs to be aligned. Further, the designed rotational connection of the laser platform allows the platform to rotate without pulling the platform away from the housing during use.

[0058] Additionally, the applicant has developed a motorized system having a number of components designed to reduce backlash so that the alignment accuracy of the motorized mount is improved. For example, the drive train includes scissor gears with compression springs that cause the teeth of the mating gears to be compressed to reduce backlash when the user changes the direction of the platform rotation. Another example of an improved design involves a worm and worm wheel. The worm wheel is designed to have a worm gear design, meaning that the worm wheel is configured to be pressed into the worm. The wave spring is positioned so that the spur gear and worm wheel are pressed down onto the worm to reduce or eliminate backlash.

[0059] Further, other laser mounts often lack precise movement when the laser level mount and / or laser level are adjusted at longer distances (i.e., using a remote control, etc.) compared to the motorized laser level mounts discussed herein. Specifically, conventional laser level mounts include a gear train with uncontrolled and / or undetected backlash. In such devices, when a user changes the direction of the laser level mount (e.g., from clockwise to counterclockwise or from counterclockwise to clockwise), the laser level line and / or projection does not move the same amount (the distance traveled may be different) each time the remote button is pressed because the gear train accounts for the backlash before initiating rotational movement. Applicant believes that other precision rotary devices may also suffer from inaccurate movement due to uncontrolled backlash.

[0060] The applicant has developed a motorized system having a number of components designed to detect and mitigate the effects of the system, and specifically to detect and mitigate gear train backlash within a laser level mount, such that movement is precise and the alignment accuracy of the motorized mount is improved. For example, the applicant believes that the backlash detection system can be used to determine when backlash within the gear train has been occupied or removed (i.e., there is no longer backlash within the system). In a specific embodiment, when an electrical connection is made, the backlash detection system determines that the backlash has been removed so that the system will accurately determine the amount of rotation of the laser level mount. The applicant believes that such detection of backlash provides the user with a more accurate laser level mount because the laser line or projection will move the same distance due to the calculated steps regardless of the direction of rotation. Further, the applicant believes that the system described herein prevents user frustration caused by the motorized mount not moving when the user presses a button on the remote control.

[0061] For example, the backlash detection and mitigation system includes columns that act as switches having a microcontroller or MCU that detects and / or determines when backlash exists in the system (i.e., within the gear train) and when the backlash has been removed. In another example, the backlash detection system measures the current of the motor to determine the presence of backlash within the laser level mount. In a final example, the backlash detection system includes one or more strain gauges that are coupled to a portion of the gear train (e.g., an output gear) to determine when the gear moves and / or changes direction. In such a backlash detection system, the applicant believes that including a biasing element to bias the system in one direction can reduce and / or remove backlash, thereby allowing the laser level mount and specifically the motor to perform in a similar manner regardless of the direction of rotation.

[0062] Finally, the applicant has designed a more intuitive remote control. In contrast to the remote controls discussed herein, other remote controls often use arrow buttons that do not match the direction of rotation if the user is facing a different direction than the laser mount. The applicant believes that the remote control with the described dial allows the user to quickly and accurately adjust the motorized laser level mount because the rotation of the dial matches the rotation of the mount regardless of the direction the user is facing.

[0063] refer to Figure 1 to Figure 2 , various aspects of a motorized rotating device, such as a motorized laser projection mount, are shown, which is specifically shown as a motorized laser level mount 10. The motorized laser level mount 10 includes a rotatable component, such as a rotatable or pivotable laser platform 12, a housing cover 14, a housing 16, legs 18, adjustable feet 20, and a platform adjustment mechanism 130 (see, e.g., Fig.12 ). The housing cover 14 is coupled to the housing 16. The rotatable laser platform 12 includes an upper or outwardly facing surface 22 on which a bottom surface of a schematically illustrated laser projection device or laser level 30 rests. The rotatable laser platform 12 further includes a pair of opposing side panels 24. The side panels 24 include grooves 26 that extend in a generally horizontal orientation parallel to the major axis of the outwardly facing surface 22 to help retain the laser projection device 30 on the laser platform 12. In specific embodiments, the grooves 26 serve as a laser projection device 30 engagement structure. In other embodiments, the laser platform 12 includes a connector, such as a threaded connector, that engages a mounting hole located along the bottom surface of the laser projection device 30. Antenna 28 (see, e.g. Fig.12 ) is configured to receive signals from a remote control device (eg, a remote control, a phone, etc.). Antenna 28 is in communication with platform adjustment mechanism 130 .

[0064] The housing 16 includes a front surface 27 that is generally perpendicular (e.g., 90°±5°) to the outwardly facing surface 22 of the rotatable laser platform 12. The motorized laser level mount 10 includes a front channel 29 extending downwardly from the rotatable laser platform 12 along the front surface 27. The front channel 29 is centered on the front surface 27 between the front legs 18. A vertical rotation axis 32 about which the laser platform 12 rotates extends through the front channel 29.

[0065] refer to Figure 3 to Figure 4 , shows the rotational movement of the laser platform 12 about the vertical axis 32. In other words, the platform 12 is rotationally engaged with the housing cover 14. Figures 1 to 3The rotational movement in the counterclockwise direction indicated by arrow 33 indicates that the laser platform 12 is not in a fixed position relative to the housing cover 14 or housing 16, thereby allowing the user to reposition the laser level mount 10 and laser projection device 30 as desired (e.g., for alignment on a work surface / workpiece). Figure 4 The laser platform 12 is shown rotating in a clockwise direction as indicated by arrow 34. As the laser platform 12 rotates about the vertical axis 32, the laser platform 12, the housing cover 14, and the cut-out portion of the housing 16 remain aligned.

[0066] refer to Figure 5 , a right side perspective view of a motorized laser level mount 10 is shown. The laser level mount 10 includes a rear surface 36 of the housing 16 opposite the front surface 27. The other leg 18 is centrally located on the rear surface 36. A portion of the rear surface 36 includes an interface pad, which is shown as a button pad 38 having a plurality of interface elements, which are shown as physical buttons 40. The physical buttons 40 can allow a user to turn on the motorized laser level mount 10, connect the laser level mount 10 to a remote control device 600 (see, e.g., Fig.33 ) to pair or sync.

[0067] refer to Figure 6 to Figure 7 , a bottom perspective view of the motorized laser level mount 10 is shown. The housing 16 further includes a lower surface or bottom surface 44. The bottom surface 44 includes a recess, which is shown as a battery compartment 74. The battery compartment 74 is configured to receive a power source, which is shown as a battery 76. In a specific embodiment, the battery compartment 74 is configured to receive three AA batteries. In other embodiments, the battery 76 is a rechargeable power tool battery, such as a lithium-ion power tool battery. The battery compartment door 46 is configured to rotate open and closed. The battery compartment door 46 includes an outer surface 68 having an opening 70 to receive a fastener 54 (e.g., a screw) when the battery compartment door 46 is in a sealed or closed position. When the fastener 54 is removed, the cylindrical element 72 can be rotated within the ring or joint 52 to open the battery compartment door 46. The bottom surface 44 further includes an opening or hole 48, which includes a threaded insert 50. The threaded insert 50 is configured to be easily connected to another device, such as a stand or tripod.

[0068] Each of the legs 18 includes a recess 56 having a protrusion, which is shown as a cylinder 58. A hole 64 extends at least partially through each cylinder 58, and each hole 64 includes a threaded insert 66. The feet 20 each include an opening 60 that is configured to receive a foot spike 42. The foot spike 42 is positioned on one end of a threaded connector 62 that has a threaded section 43 on an opposite end. When a user rotates the foot 20 in a first direction, the distance between the foot 20 and the leg 18 increases. When a user rotates the foot 20 in a second direction opposite to the first direction, the distance between the foot 20 and the leg 18 decreases, thereby allowing the height of the laser level mount to be adjusted with the individual feet as desired (e.g., for uneven surfaces). The foot spike 42 can be firmly implanted into soft ground (e.g., soil) to provide stability for using the motorized laser level mount 10 outdoors.

[0069] refer to Figures 8 to 11 , various aspects of the rotational coupling between the rotating laser platform 12 and the housing cover 14 are shown. The housing cover 14 further includes an upper surface 80 on which the laser platform 12 rotates or pivots. The housing cover 14 includes a plurality of holes 82 configured to receive a plurality of fasteners 84 (e.g., screws) that couple the housing cover 14 to the housing 16. The housing cover 14 further includes a slot 86 that passes into the housing 16. The slot 86 guides the movement of the platform adjustment mechanism 130 and the laser platform 12 during rotation, thereby helping to control the arc of travel of the laser platform 12. The upper gear section 90 of the platform adjustment mechanism 130 extends upward through the slot 86.

[0070] The housing cover 14 includes a front rib 92 extending upward from the upper surface 80. The front rib 92 is positioned approximately centrally relative to the front leg 18 and between the front channel 29 and the slot 86. The front rib 92 includes a surface 93 that serves as a support surface for the laser platform 12. The housing cover 14 further includes a rear rib 94 positioned between the slot 86 and the rear leg 18. The rear rib 94 has a dovetail shape with an inclined surface 95 that extends at an angle from the upper surface 80 toward the laser platform 12 and defines a space 96 between the rear rib 94 and the upper surface 80. The rear rib 94 also serves as a support surface for the laser platform 12. The front rib 92 and the rear rib 94 are designed to interface with corresponding surfaces on the laser platform 12. In a specific embodiment, the front rib 92 and the rear rib 94 are lubricated. In other embodiments, ball bearings are used to interface with corresponding surfaces on the laser platform and the housing cover.

[0071] refer to Fig. 9, a perspective view of an inwardly facing portion of the housing cover 14 is shown. The housing cover 14 includes a recess 100 extending at least partially around the slot 86. The recess 100 is configured and / or shaped to receive the upper gear segment 90. The housing cover contains a spring, which is shown as a leaf spring 98 positioned along the slot 86 and the rear portion of the recess 100. The leaf spring 98 presses the upper gear segment 90 against the face of the slot 86, thereby limiting the rocking and / or jumping of the laser platform 12 during rotation. The housing cover includes a generally circular recess 102, which is shaped to receive the spur gear 136 (see, e.g. Fig.12 and Figure 15 to Figure 16 ).

[0072] refer to Fig.10 , showing a perspective view of the inward or downward facing surface of the laser platform 12. The laser platform 12 includes a rear recess 104 having a wall 106 configured to cooperate with the rear rib 94 of the housing cover 14. The wall 106 includes an inclined surface 108 extending downwardly toward the housing cover 14 in a manner opposite to the inclined surface 95 of the rear rib 94 (see, e.g. Fig.11 The laser platform 12 further includes a central recess 110 shaped to surround the slot 86 and the curved member 88 (see, e.g. Figure 8 ), which supports the laser platform 12 and helps limit any rocking movement during rotation of the laser platform 12. Wall 112 defines a central recess 110 and is positioned around the slot 86 and the curved member 88. Within the central recess 110, a pair of bosses or protrusions 114 extend downwardly toward the housing cover 14. Each protrusion 114 includes a hole 116 to receive a fastener extending through the laser platform 12 and connecting it to the upper gear segment 90. The laser platform 12 further includes a front recess 118 having an inner surface 120. The front recess 118 is shaped to receive and mate with the front rib 92 of the housing cover 14.

[0073] refer to Fig.11 , illustrates the interaction between the laser platform 12 and the housing cover 14 that allows the laser platform 12 to rotate. The surface 93 of the front rib 92 is positioned within the front recess 118 so that the inner surface 120 mates with the surface 93 of the front rib 92 during rotation of the laser platform 12. Similarly, the inclined surface 95 of the rear rib 94 opposes and abuts the inclined surface 108 of the wall 106 of the laser platform 12. The dovetail shape of the rear rib 94 allows the laser platform 12 to rotate while securing the laser platform 12 so that the laser platform is not pulled away from the housing cover 14 during movement of the laser platform 12.

[0074] refer to Fig.12, shows a perspective view of a platform adjustment mechanism 130 positioned within a recess 128 of the housing 16. The platform adjustment mechanism 130 includes an upper gear segment 90, a lower gear segment 132, a worm 134, a spur gear 136, a worm gear 138, and a motor 140. The motor 140 is at least partially surrounded by and coupled to a motor plate 142, and is coupled to the antenna 28. In a specific embodiment, the motor 140 is a stepper motor that moves in steps and / or in discrete segments. In another embodiment, the motor 140 is a direct current (DC) motor, and in such an embodiment, an optical encoder tracks the rotation of the motor 140 during rotation of the laser platform 12. In a specific embodiment, the output shaft of the motor 140 is directly coupled to the worm 134. In another embodiment, the motor 140 is coupled to a gearbox, the output of which is coupled to the worm 134.

[0075] A main circuit board, shown as printed circuit board assembly (PCBA) 144, is positioned and secured within recess 128 of housing 16, between upper gear section 90 and button housing 146, and adjacent to motor 140. In a particular embodiment, button housing 146 includes another small PCBA positioned within button housing 146.

[0076] refer to Fig.13 , shows a partially exploded perspective view of an inwardly facing portion of the laser platform 12 and a portion of the platform adjustment mechanism 130, with the housing cover 14 removed. The portion of the platform adjustment mechanism 130 shown is designed to alleviate backlash within the system. The upper gear segment 90 includes a cavity 148 to retain a spring, which is shown as a compression spring 154. The upper gear segment 90 further includes a pair of holes 150, which are positioned on opposite sides of the cavity 148 and are aligned with the holes 116 of the protrusion 114 positioned on the laser platform 12. The upper gear segment 90 is pressed onto the protrusion 114 and is positioned between the lower gear segment 132 and the laser platform 12. One end of the forward-facing curved side 151 of the upper gear segment 90 includes a plurality of gear teeth 152 to engage with the teeth 137 of the spur gear 136 (see, e.g. Fig.14 ).

[0077] The lower gear segment 132 similarly includes a forward facing curved side 155 and includes gear teeth 158 at one end. The gear teeth 158 of the lower gear segment and the gear teeth 152 of the upper gear segment 90 are positioned on the same end. The lower gear segment 132 further includes a pair of elongated openings 156 that align with the holes 150 of the upper gear segment 90 and the holes 116 of the laser platform 12. A support plate 160 is positioned below the lower gear segment 132 (with the support plate 160 positioned below the lower gear segment 132). Fig.13The support plate 160 further includes a groove extending in the direction of the main axis of the laser platform 12. The groove 166 is shaped to receive and engage a portion of the worm 134 (see, e.g., Fig.14 ).

[0078] A pair of fasteners 164 extend through the support plate 160, the lower gear section 132, and the upper gear section 90 into the hole 116 to fasten this portion of the platform adjustment mechanism 130 to the laser platform 12. In a specific embodiment, the fasteners 164 are plastic fasteners. In a specific embodiment, a wave spring can be positioned around each fastener 164. In this embodiment, the fasteners 164 extend from the bottom in the hole 116 of the protrusion 114, thereby slightly compressing the wave spring. This arrangement allows the lower gear section to move along an arc, but prevents vertical movement. As the upper gear section 90 rotates, the spring 154 is compressed. The range of rotation of the upper gear section 90 allows the gear teeth 152 to align with the teeth 137 of the spur gear 136, so that the teeth mesh or engage. Therefore, the teeth 137 of the spur gear 136 are clamped by the spring force, thereby eliminating the backlash.

[0079] refer to Fig.14 , shows a perspective view from above the motor 140 and the connection to the gear system that rotates the laser platform 12. The antenna 28 is positioned at one end of a leaf spring 98. The leaf spring 98 pushes and / or presses the upper gear section 90 against the face of the slot 86 to limit rocking and jumping of the laser platform 12 during rotation.

[0080] refer to Fig.15 and Fig.16 , showing a detailed view of the engagement between the worm 134 , the worm wheel 138 , and the spur gear 136 . Fig.15 A partially exploded view of the spur gear 136 is shown separated from the worm gear 138. In one embodiment, the teeth 137 of the spur gear 136 include compression springs that cause the teeth of the mating gears (e.g., upper gear segment 90 and / or lower gear segment 132) to be compressed, thereby reducing backlash when the user changes the direction of rotation of the laser platform 12.

[0081] As previously described, the worm gear 138 uses a spur gear design, which means that the opening 170 is designed to be pressed into the worm 134. The worm gear 138 includes a ridge or wave 172 on the surface facing the spur gear 136. The wave spring 174 is positioned within the spur gear 136 below the pin 175 and presses the worm gear 138 down into engagement with the worm 134, thereby reducing backlash. The ridge or wave 172 of the worm gear 138 engages with the ridge 177 on the spur gear 136. The pin 175 extends through the spur gear 136 and the worm gear 138 and rotatably couples them. The cap 176 is positioned on the axis of the pin 175 and is received within a portion 178 of the housing 16.

[0082] refer to Figures 17 to 22 , various aspects of a motorized rotating device (such as a motorized laser projection mount) according to another exemplary embodiment are shown, which is specifically shown as a motorized laser level mount 210. The motorized laser level mount 210 includes a rotatable member or platform (such as a rotatable or pivotable laser platform 212), a housing cover 214, a housing 216, legs 218, adjustable feet 222, and a platform adjustment mechanism 230 (see, e.g., Fig.23 ).

[0083] refer to Fig.17 , showing a backlash detection system 220 according to an exemplary embodiment (see e.g. Fig.23 ). Backlash detection system 220 may be utilized with a motorized device, such as motorized laser level mount 10 or 210, to improve the accuracy of movement of the device as described above. Motorized laser level mount 210 is substantially the same as motorized laser level mount 10, except for the differences discussed herein.

[0084] refer to Fig.18 , shows a right side perspective view of a motorized laser level mount 210. The laser level mount 210 includes a rear surface 221 of the housing 216 opposite the front surface. The leg 218 is positioned between the sides of the housing 216, approximately centrally on the rear surface 221. A portion of the rear surface 221 includes an interface pad, which is shown as a button pad 223 having a plurality of interface elements, which are shown as physical buttons 224. The physical buttons 224 can allow a user to turn on the motorized laser level mount 210, to connect the laser level mount 210 to a remote control device 600 (see, e.g., Fig.33) pairing or synchronization. As will be discussed in more detail below, the remote control device can be further used to switch back and forth between fast and slow rotation of the laser platform 212. In a specific embodiment, the indicator light 225 can display the power status (i.e., on / off). In a specific embodiment, the indicator light 224 displays a communication indicating that an error has occurred (i.e., flashing, colored light, etc.).

[0085] refer to Figures 19 to 22 , various aspects of the rotational coupling or engagement between the rotating laser platform 212 and the housing cover 214 are shown. In other words, the platform 212 is rotationally engaged with the housing cover 214. The housing cover 214 further includes an upper surface 280 on which the laser platform 212 rotates or pivots. The housing cover 14 includes a slot 286 that leads into the housing 216. The slot 286 guides the movement of the platform adjustment mechanism 230 and the laser platform 212 during rotation, thereby helping to control the arc of travel of the laser platform 212. The output slide 290 of the platform adjustment mechanism 230 extends upward through the slot 286 to engage and / or drive the laser platform 212. In other words, the platform adjustment mechanism 230 is coupled to the laser platform 212 so that the platform adjustment mechanism 230 drives the rotation of the laser platform 212.

[0086] The housing cover 214 includes a front rib 292 extending upward from the upper surface 280. The front rib 292 is positioned approximately centrally relative to the front leg 218 and between the front channel 229 and the slot 286. The front rib 292 includes a surface 293 that serves as a support surface for the laser platform 212. The housing cover 214 further includes a rear rib 294 positioned between the slot 286 and the rear leg 218. The rear rib 294 has a dovetail shape with an inclined surface 295 that extends at an angle from the upper surface 280 toward the laser platform 212 and defines a space 296 between the rear rib 294 and the upper surface 280. The rear rib 294 also serves as a support surface for the laser platform 212. The front rib 292 and the rear rib 294 are designed to interface with corresponding surfaces on the laser platform 212. In a specific embodiment, the front rib 292 and the rear rib 294 are lubricated.

[0087] refer to Fig. 20 , showing a perspective view of an inwardly facing portion of the housing cover 214. The housing cover 214 includes a recess 300 extending at least partially around the slot 286. The recess 300 is configured and / or shaped to receive the output slider 290. The housing cover 214 includes a generally circular recess 302 shaped to receive the output driver 236 (see, e.g., Fig.23 and Figure 26 to Figure 27 ). The housing cover 214 further includes a plurality of protrusions including holes 282. The holes 282 are configured to extend upward (at Fig.23The housing cover 214 may be coupled to the housing 216 by engaging protrusions and / or fasteners (eg, screws) of the housing cover 214 (in the reference frame shown).

[0088] refer to Fig.21 , showing a perspective view of the inward or downward facing surface of the laser platform 212. The laser platform 212 includes a rear recess 304 having a wall 306 configured to cooperate with the rear rib 394 of the housing cover 214. The wall 306 includes an inclined surface 308 extending downwardly toward the housing cover 214 in a manner opposite to the inclined surface 295 of the rear rib 294 (see, e.g., Fig. 22 ). The laser platform 212 further includes a central recess 310 shaped to surround the slot 286. Walls 312 define the central recess 310 and are positioned to surround the slot 286. Within the central recess 310, a pair of bosses or protrusions 314 extend downwardly toward the housing cover 214. Each protrusion 314 includes a hole 316 to receive a fastener that extends through the laser platform 212 and connects it to the output slide 290. The laser platform 212 further includes a front recess 318 having an inner surface 320. The front recess 318 is shaped to receive and mate with the front rib 292 of the housing cover 214.

[0089] refer to Fig. 22 , illustrates in cross-sectional view the interaction between the laser platform 212 and the housing cover 214 that allows the laser platform 212 to rotate. The surface 293 of the front rib 292 is positioned within the front recess 318 so that the inner surface 320 mates with the surface 293 of the front rib 292 during rotation of the laser platform 212. Similarly, the inclined surface 295 of the rear rib 294 opposes and abuts the inclined surface 308 of the wall 306 of the laser platform 212. The dovetail shape of the rear rib 294 allows the laser platform 212 to rotate while securing the laser platform 212 so that the laser platform is not pulled away from the housing cover 214 during movement of the laser platform 212.

[0090] refer to Fig.23, the platform adjustment mechanism 230 is positioned within the recess 228 of the housing 216 and is attached to the housing cover 214. The platform adjustment mechanism 230 includes an output slide 290, a worm 234, an output driver 236, a worm gear 238, and a motor 240. The motor 240 is positioned within the housing 216 and is coupled to a gear train holder 242 and a gear train. In a specific embodiment, the motor 240 is a stepper motor that moves in steps or segments. In another embodiment, the motor 240 is a direct current (DC) motor, and in such an embodiment, a device such as an optical encoder tracks the rotation of the motor 240 during the rotation of the laser platform 212. In a specific embodiment, the output shaft of the motor 240 is directly coupled to the worm 234. In another embodiment, the motor 240 is coupled to a gear box, the output of which is coupled to the worm 234. A main circuit board, shown as a printed circuit board assembly (PCBA) 244, is positioned within recess 228 of housing 216 and coupled to housing cover 214. Antenna 231 is configured to receive signals from a remote control device (e.g., a remote control, a phone, etc.), such as remote control device 600. Antenna 231 communicates with platform adjustment mechanism 230.

[0091] refer to Fig.24 , shows a partially exploded perspective view of an inwardly facing portion of the laser platform 212 and a portion of the platform adjustment mechanism 230, with the housing cover 214 removed. The output slide 290 includes a cavity that is sized and / or configured to retain a portion of the output driver 236 and / or the backlash detection system 220. In other words, the output slide 290 engages with the backlash detection system 220 and is coupled to the platform 212. The output slide 290 further includes a plurality of corresponding features (i.e., protrusions and / or holes) that are configured to engage with corresponding features on the lower output slide 241. The support plate or gear train retainer 242 is positioned below the lower output slide 241, the output slide 290, and / or the output driver 236 (in contrast to the lower output slide 241). Fig.24 opposite reference frame).

[0092] refer to Fig.25 , shows a perspective view from above the motor 240 and the connection to the output system that rotates the laser platform 212. When the laser level mount 210 is assembled, the output driver 236 is positioned in front of the output slide 290 and the lower output slide 241. The output driver 236 is positioned above the worm gear 238 that engages the worm 234. In other words, the output driver 236 is coupled to the gear train (i.e., the worm 234, the worm gear 238, etc.).

[0093] refer to Figure 26 to Figure 27 , showing a detailed view of the engagement between the worm 234 , worm gear 238 , and output drive 236 . Fig.26A perspective view showing worm gear 238 coupled to and / or positioned about shaft 276, Fig. 27 A cross-sectional view of a portion of the output system is shown. A wave spring 274 is positioned within the output driver 236 below the uppermost portion of the shaft 276 and presses the output driver 236 downward into engagement with the worm gear 238 and / or the worm 234, thereby reducing backlash. The wave spring 274 allows the worm gear 238 and the output driver 236 to slide relative to each other, thereby creating a slip clutch. This slip clutch arrangement protects the gear train from abuse and / or misuse while also allowing a user to manually switch positions. The shaft 276 extends through the output driver 236 and the worm gear 238 and rotatably couples them. The output driver 236 is coupled to the post 252. When the laser level mount 210 is assembled, the post 252 extends through the output slide 290 and the lower output slide 241.

[0094] As will be generally understood, backlash is the clearance or loss of motion in a mechanism caused by a gap or spacing. In this case, backlash is defined as the gap and / or spacing between opposing mating teeth in a gear train, specifically the gap and / or spacing between the gear teeth on the worm wheel 238 and the teeth on the worm 234. For example, the space and / or gap between the teeth on the worm 234 positioned between the gear teeth of the worm wheel 238 is backlash. The teeth on the worm 234 move within the gap and / or space until the teeth of the worm 234 abut or engage with the gear teeth of the worm wheel 238, at which point the backlash has been removed because the gap and / or space between the gear teeth of the worm wheel 238 and the teeth of the worm 234 has disappeared or has been removed. When the gap and / or space no longer exists, there is no more backlash or loss of motion between the worm wheel 238 and the worm 234.

[0095] In other words, when the gear train includes a first gear having teeth (i.e., the worm 234) and a second gear having teeth (i.e., the worm wheel 238), the MCU 232 detects when the teeth of the first gear directly contact the teeth of the second gear to determine that the backlash has been removed from the system. Specifically, the monitoring unit or MCU 232 detects when at least one tooth of the worm 234 is in direct contact and / or engagement with at least one tooth of the worm wheel 238, such that further rotation of the worm 234 and / or the worm wheel 238 causes movement of the platform 212 (i.e., no motion loss). When there is space between the teeth of the first gear and the teeth of the second gear, the MCU 232 detects that there is backlash in the system (i.e., there will be motion loss). Specifically, the monitoring unit or MCU 232 detects when at least one tooth of the worm 234 is spaced apart and / or not directly engaged with at least one tooth of the worm wheel 238, such that further rotation of the worm 234 and / or the worm wheel 238 does not cause movement of the platform 212 (i.e., motion loss) until the space between the teeth is removed. As will be discussed in more detail below, backlash within a gear train may be removed for one particular direction (ie, clockwise or counterclockwise rotation) while retaining backlash in the opposite direction.

[0096] refer to Figures 28 to 30 , various aspects of the backlash detection system 220 are shown. In general, the backlash detection system 220 includes a monitoring unit, such as a controller. The monitoring unit, shown as a microcontroller unit ("MCU") 232, is part of the PCBA 244 and is used and / or configured to detect and / or determine when a user wants to make the laser platform 212 and / or the laser projection device (see, e.g. Figure 2 30) rotates, whether there is a backlash in the platform adjustment mechanism 230 of the laser level mount 210 that may affect the movement of the laser platform 212. In other words, the monitoring unit or MCU 232 is configured to detect when the backlash is removed from the platform adjustment mechanism 230 and / or the gear train. In general, the MCU 232 includes various components (e.g., central processing unit, memory, supporting circuit systems, etc.) for processing information about the backlash. In a specific embodiment, the MCU 232 communicates data collected via a communication link (e.g., Wi-fi, Bluetooth, etc.) that can be wired or wireless. In a specific embodiment, the communication link is a 433MHz RF system.

[0097] like Figure 28 to Figure 29As shown, the backlash detection system 220 includes an output driver 236 coupled to a stepper motor 240 via a worm gear 234 and a clutch assembly such that the stepper motor 240 will move and / or rotate the output driver 236. A rotating column 252 is grounded and coupled to the output driver 236. The rotating column 252 is rigidly fixed to the output driver 236. The output driver 236 is grounded via a gear train holder 242. The MCU 232 further includes a general purpose input / output ("GPIO") (shown as a first pin 254) with a pull-up resistor, and another GPIO (shown as a second pin 256) with a pull-up resistor. The second pin 256 is spaced a distance from the first pin 254 such that the first pin 254 does not contact the second pin 256. The first pin 254 and the second pin 256 are coupled to an insulating follower 258 (see, e.g. Fig.23 ) and / or output slider 290. The insulating follower 258 is coupled to the laser platform 212. In other words, the backlash detection system 220 includes an output driver 236 having a rotating column 252, a first pin 254, and a second pin 256.

[0098] The rotating post 252 is positioned to extend between the first pin 254 and the second pin 256 of the MCU 232. When the rotating post 252 is spaced apart from the first pin 254 or the second pin 256 and is not engaged and / or in contact (i.e., the circuit is open), the MCU 232 measures at least one of the voltage and / or resistance as being in a first condition or state (i.e., a "high" logic state), and determines that there is backlash in the platform adjustment mechanism 230 and / or in the gear train. When there is backlash in the gear train, the rotating post 252 will move until the rotating post 252 contacts the pin (the first pin 254 or the second pin 256) to remove the backlash. In a specific embodiment, when the rotating post 252 is centered between the first pin 254 and the second pin 256, if the user wants to rotate the laser platform, there will be similar and / or equal amounts of backlash in the right or left direction. In other words, the amount of backlash when the platform 212 rotates in the clockwise direction is the same as the amount of backlash when the platform 212 rotates in the counterclockwise direction.

[0099] In a specific embodiment, when the rotating post 252 is centered between the first pin 254 and the second pin 256 and the rotating post 252 rotates away from the second pin 256 toward the first pin 254 to reach the center position, the amount of backlash toward the first pin 254 is smaller and / or the backlash is less because the rotating post 252 has moved in the direction toward the first pin. Similarly, in a specific embodiment, when the rotating post 252 is centered between the first pin 254 and the second pin 256, when the rotating post rotates away from the first pin 254 toward the second pin 256 to reach the center position, the amount of backlash toward the second pin 256 is smaller and / or the backlash is less because the rotating post 252 has moved in the direction toward the second pin.

[0100] refer to Figure 28 to Figure 29 , shows a perspective view of a motorized laser level mount 210 , and specifically a backlash detection system 220 , with a portion of an output slide 290 removed, according to an exemplary embodiment. Fig.28 The backlash detection system 220 is shown in a first or right rotational position. When the rotating post 252 is initially positioned between the first pin 254 and the second pin 256 and the user sends a signal to the motorized laser level mount 210 to move or rotate the laser platform 212 to the right and / or to rotate the laser platform in a clockwise direction (see, e.g., Figure 4 When the rotating post 252 is rotated as shown in the arrow 34 in the figure, the rotating post 252 moves until the rotating post 252 engages or contacts the first pin 254, such as Fig.28 The contact between the grounded rotating post 252 and the first pin 254 causes the MCU 232 to measure at least one of the voltage and / or resistance as being in a second condition or state (i.e., a "low" logic state) different from the first condition or state (i.e., touching the ground pulls the pin down) to determine that the backlash in the platform adjustment mechanism 230 has been removed. The rotating post 252 pushes against the first pin 254 to cause the laser platform 212 and / or the laser projection device (see, e.g., Figure 2 This engagement or connection between the grounded rotating post 252 and the first pin 254 allows the MCU 232 to determine that the backlash has been removed from the platform adjustment mechanism 230 in the right direction and can begin counting the steps of the motor 240 so that the laser platform 212 will travel and / or move the desired distance in the clockwise direction.

[0101] refer to Fig.29 , the backlash detection system 220 is shown in a second or right rotational position. When the rotating post 252 is initially positioned between the first pin 254 and the second pin 256 and the user sends a signal to the motorized laser level mount 210 to move or rotate the laser platform 212 to the left and / or to rotate the laser platform 212 in a counterclockwise direction (see, e.g. Figure 3 When the rotating post 252 is rotated (arrow 33 in the figure), the rotating post 252 moves until the rotating post 252 engages or contacts the second pin 256. The contact between the grounded rotating post 252 and the second pin 256 causes the MCU 232 to measure at least one of the voltage and / or resistance as being in a second condition or state (i.e., a "low" logic state) different from the first condition or state (i.e., pulling the pin down) to determine that the backlash in the platform adjustment mechanism 230 has been removed. The rotating post 252 pushes against the second pin 256 to cause the laser platform 212 and / or the laser projection device (see, e.g., Figure 2 30). This engagement or connection between the grounded rotating post 252 and the second pin 256 allows the MCU 232 to determine that the backlash has been removed from the platform adjustment mechanism 230 in the left direction and can begin counting the steps of the motor 240 so that the laser platform 212 will travel and / or move the desired distance in the counterclockwise direction. In other words, when the backlash has been removed from the platform adjustment mechanism 230, the steps of the motor 240 are counted so that the platform 212 moves the same distance during clockwise rotation as the platform 212 moves during counterclockwise rotation.

[0102] Similarly, if the rotating post 252 is initially in a position engaged and / or in contact with the first pin 254, and the user enters a command to move the laser platform 212 to the left and / or to rotate the laser platform 212 in a counterclockwise direction (see, e.g., Figure 3 33 in FIG. 1 ), the rotating post 252 moves such that contact is removed from the first pin 254 and continues to move until contact is made with the second pin 256. Once such engagement or connection between the grounded rotating post 252 and the second pin 256 occurs, the MCU 232 measures at least one of the voltage and / or resistance as being in a second condition or state (i.e., a "low" logic state) that is different from the first condition or state (i.e., touching ground pulls the pin down) to determine that backlash has been removed from the platform adjustment mechanism 230 and / or the gear train in the left and / or counterclockwise direction, and can begin counting the steps of the motor 240 so that the laser platform 212 will travel and / or move the desired distance in the counterclockwise direction.

[0103] When the rotating column 252 is initially in a position to engage and / or contact the second pin 256, and the user inputs a command and / or sends a signal to the motorized laser level mount 210 to move the laser platform 212 to the right and / or to move the laser platform 212 in a clockwise direction (see, e.g., Figure 4As the rotating post 252 is rotated (arrow 34 in FIG. 1 ), the rotating post 252 moves such that contact is removed from the second pin 256 and continues to move until the rotating post 252 contacts or engages with the first pin 254. Once such engagement or connection between the grounded rotating post 252 and the first pin 254 occurs, the MCU 232 measures at least one of the voltage and / or resistance as being in a second condition or state (i.e., a "low" logic state) (i.e., touching ground pulls the pin down) to determine that the backlash has been removed from the platform adjustment mechanism 230 and / or the gear train in the right and / or clockwise direction, and can begin counting the steps of the motor 240 so that the laser platform 212 will travel and / or move the desired distance in the clockwise direction.

[0104] refer to Fig.30 , the pin spacing distance D between the first pin 254 and the second pin 256 is defined between a point on the outer surface 260 of the first pin 254 and an opposite point on the outer surface 262 of the second pin 256. In a specific embodiment, the distance D is between 1 mm and 10 mm, and more specifically between 1 mm and 5 mm. In such an embodiment, D is about 3.825 mm (e.g., 3.825 mm ± .5 mm). When D is a relatively short distance, the applicant believes that the efficiency of the backlash detection system is improved because the rotating column 252 spends less time moving between engaging with the first pin 254 and engaging with the second pin 256. However, D must be large enough so that the rotating column 252 cannot contact both the first pin 254 and the second pin 256 at the same time.

[0105] The applicant believes that the backlash detection system described herein improves the accuracy of the movement of the motorized laser level mount 210 because the detection method allows the counting of steps to begin once the backlash is occupied or removed from the platform adjustment mechanism. The applicant further believes that the use of the backlash detection system allows for improved movement accuracy without increasing the cost of designing a gear train that attempts to remove most and / or all backlash from the gear train (i.e., zero backlash).

[0106] refer to Fig.31 , shows a graph of motor current for a motorized laser level mount having a backlash detection system 420 according to another exemplary embodiment. The backlash detection system 420 uses changes in motor current to determine when backlash is removed from the platform adjustment mechanism and specifically the gear train. When backlash is present within the system, the motor will be at its lowest relative load condition, as shown in portion 422 of the graph. Once backlash has been removed, the motor current will operate at relatively normal levels, as shown in portion 424 of the graph. As shown in FIG. Fig.31 It can be seen that the average current level 424 (indicated by the dashed line) of the motor in normal operation is greater than the average current in portion 422 when backlash is present in the system.

[0107] When the motor has rotated the laser platform to the furthest point in the clockwise or counterclockwise direction (i.e., the end of travel point), the motor current increases as shown in portion 426 and is greater than both the current level 424 of the normally operating motor and the backlash current level 422. In a specific embodiment, the current level 424 under normal operating conditions is amplified to further distinguish it from the backlash current level 422. The applicant further believes that this current detection backlash system can be used to reduce current consumption and / or wear on the components of the motorized laser level by shutting down or stopping the motor once the current level reaches the end of travel level indicated by portion 426 of the diagram.

[0108] refer to Fig.32 , shows a top plan view of a motorized laser level mount 510 having a backlash detection system 520 according to an exemplary embodiment. The backlash detection system 520 can be utilized with a motorized device, such as the motorized laser level mount 10, to improve the accuracy of movement of the device as described above. The housing 516, upper gear segment 590, and motor 540 are substantially the same as the housing 16, upper gear segment 90, and motor 140, except for the differences discussed herein.

[0109] The backlash detection system 520 includes one or more biasing elements, shown as springs 524, coupled to the upper gear segment 590. The backlash detection system 520 further includes one or more strain gauges 522, shown schematically, coupled to the upper gear segment 590. In a specific embodiment, one spring 524 is coupled to the upper gear segment 590, and one strain gauge 522 is used to monitor the movement of the upper gear segment 590 (i.e., using changes in strain to indicate movement). In such an embodiment, the spring 524 will also bias the gear train in one direction and / or remove backlash from the gear train.

[0110] In another specific embodiment, two springs 524 are coupled to the upper gear segment 590, and two strain gauges 522 can be used to determine the position of the upper gear segment 590. Applicants believe that using two springs 524 will prevent and / or reduce the amount of bias in the gear train so that the motor does not have to work harder in one direction of rotation relative to the other. Each strain gauge 522 will be required to have a high level of sensitivity (e.g., sensing a movement of .008 cm ±.002).

[0111] Although the illustrated embodiments are disclosed in the context of a laser projection mount, in other embodiments, other devices or systems including precision rotating components include the backlash detection and mitigation systems discussed herein. For example, in other embodiments, a motorized adjustable device (i.e., a system that can be used with a rotating and / or translating device) (such as various robots, motorized supports, turntables) includes the backlash detection system(s) discussed herein.

[0112] refer to Figure 33 to Figure 34 , shows a perspective view of a remote control device, which is shown as a remote control 600. The remote control 600 is configured to interact with the motorized laser level mount 10 and / or 210 from a distance. For example, a user selects a command on the remote control 600, and in response, the remote control 600 transmits a signal to the laser level mount 10 and / or 210, thereby providing a command to the laser level mount 10 and / or 210 (e.g., rotate at a fast or slow speed in a specific direction, etc.). In a specific embodiment, the remote control 600 communicates with the antenna 28 of the motorized laser level mount 10 or the antenna 231 of the motorized laser level mount 210 using radio frequency (RF). The remote control 600 can communicate with the laser level mount 10 and / or 210 within a range of about 200 feet (e.g., 200 feet ± 10 feet).

[0113] The remote control 600 includes an upper housing 602 and a lower housing 604 that may be fastened together. The remote control 600 further includes a lanyard attachment or wrist strap 606 positioned at one corner of the housing to facilitate remote carrying during use of the motorized laser level mount 10. The remote control 600 includes one or more physical interface components, shown as a dial 608, extending upwardly through an aperture 610 in the upper housing 602. The dial 608 receives input from a user indicating selection of one or more commands (e.g., direction of movement along arrows 33 or 34, speed of rotation, etc.). In particular embodiments, the remote control 600 may include a separate button to change between fast and slow rotation modes of the motorized laser level mount 10 and / or 210.

[0114] The dial 608 allows the user to quickly and accurately adjust the motorized laser level mount 10 and / or 210 because the rotation of the dial 608 matches the rotation of the mount regardless of the direction the user is facing. When the dial 608 is rotated in a clockwise direction, the laser platform 12 and / or 212 rotates in a clockwise direction, and when the dial 608 is rotated in a counterclockwise direction, the laser platform 12 and / or 212 rotates in a counterclockwise direction. Because the clockwise and counterclockwise rotations are independent of the positional relationship of the user, the remote control 600, and the laser platform 12 and / or 212 (unlike a conventional left or right arrow), control of the movement of the laser platform 12 and / or 212 is intuitive to the user regardless of where the user is located relative to the laser.

[0115] The remote control 600 further includes a button 609 to toggle between turning the power on and off to the remote control 600. The button 609 is in a recess 611 that extends across at least a portion of the upper housing 602 and the lower housing 604. Placing the button 609 in the recess helps prevent any accidental adjustment of the laser level mount 10 and / or 210 after alignment is complete when the user may pocket or put the remote control 600 down.

[0116] refer to Figure 34 to Figure 36 , remote control 600 includes a circuit board, shown as PCBA 612, positioned within and secured to lower housing 604. In a particular embodiment, an optical encoder is enclosed within upper housing 602 and lower housing 604 and positioned such that the shaft of the encoder extends from dial 608 to track the movement of dial 608. O-ring 614 seals the face of dial 608, thereby preventing particles (e.g., dust, dirt, etc.) from entering remote control 600. In a particular embodiment, lubrication is applied to O-ring 614 to reduce friction and assist in sealing of remote control 600. A biasing element, shown as spring member 616, provides feedback for each notch 618 on dial 608 that a user passes as dial 608 is rotated.

[0117] refer to Figure 37 to Figure 38 , a rear perspective view of the remote control 600 is shown. The lower housing 604 includes a battery compartment door 620 that seals one or more batteries 626 in a recessed battery compartment 624. In a particular embodiment, the battery compartment 624 is configured to hold two AA batteries 626. A fastener, shown as a screw 622, can be tightened to prevent the battery compartment door 620 from accidentally opening. Within the battery compartment 624, a synchronization button 628 is positioned next to the batteries 626. The synchronization button 628 can be used to mate the remote control 600 with the laser level mount 10 and / or 210.

[0118] refer to Fig.39 , according to another exemplary embodiment, a remote control 700 is shown. In general, the remote control 700 is substantially the same as the remote control 600, except for the differences discussed herein. The remote control 700 includes an upper housing portion 702. The remote control 700 includes one or more physical interface components, shown as buttons 704. The buttons 704 can be actuated by a user to receive input indicating a selection of one or more commands (e.g., a desired rotation direction of the laser platform 12 and / or 212, a rotation speed, etc.). In a particular embodiment, the remote control 700 can include a separate button to change between fast and slow rotation modes of the motorized laser level mount 10 and / or 210.

[0119] refer to Figure 40 to Figure 42 , shows a perspective view of a remote control device, shown as remote control 800. Remote control 800 is configured to interact with motorized laser level mount 10 and / or 210 from a distance. For example, a user selects a command on remote control 800, and in response, remote control 800 transmits a signal to laser level mount 10 and / or 210, thereby providing a command to laser level mount 10 and / or 210 (e.g., rotate at a fast or slow speed in a specific direction, etc.). In a specific embodiment, remote control 800 communicates with antenna 28 of motorized laser level mount 10 or antenna 231 of motorized laser level mount 210 using radio frequency (RF). In a specific embodiment, remote control 800 can communicate with laser level mount 10 and / or 210 within a range of about 200 feet (e.g., 200 feet ± 10 feet).

[0120] The remote control 800 includes an upper housing 802 and a lower housing 804 that can be fastened together. The remote control 800 further includes a lanyard attachment or wrist strap 806 positioned at one corner of the housing to facilitate distal carrying during use of the motorized laser level mount. The remote control 800 includes one or more physical interface components shown as buttons 808, 809, 810. The buttons 808, 809, 810 can be actuated by a user to receive input indicating selection of one or more commands (e.g., desired rotation direction, rotation speed, etc. of the laser platform 12 and / or 212). In a specific embodiment, the remote control 800 can include a separate button to change between fast and slow rotation modes of the motorized laser level mount 10 and / or 210. For example, relative to button 808, button 810 is used for a faster rotation mode. In a specific embodiment, each of the buttons 808, 810 includes an indicator 812 for direction and / or speed.

[0121] In a specific embodiment, the indicator is triangular. In other embodiments, the indicator can have a different shape or be a number (i.e., a rectangle or 2x, etc.). In a specific embodiment, the indicator on the fast mode will be twice the indicator on the relatively slow mode (i.e., one triangle for slow and two triangles for fast). Specifically, when the right button with the indicator pointing to the right direction relative to the longitudinal axis of the remote control 800 is actuated, the motorized device will rotate to the right. Similarly, when the left button with the indicator pointing to the left direction relative to the longitudinal axis of the remote control 800 is actuated, the motorized device will rotate to the left. In a specific embodiment, the remote control 800 includes a right fast rotation mode button 810, a left fast rotation mode button, a right slow rotation mode button, and a left slow rotation mode button.

[0122] The remote control 800 includes a power button 809 to switch the power of the remote control 800 on and / or off. The power button 809 is positioned within a recess 811 to help prevent any accidental adjustment of the laser level mount 10 and / or 210 after alignment is complete when the user may put the remote control 800 into a pocket or put it down. In a particular embodiment, the remote control 800 includes a gripping structure 814 having a plurality of protrusions and / or channels. The gripping structure 814 extends across at least a portion of the upper housing 802 and / or the lower housing 804.

[0123] refer to Fig.41 , shows a partially exploded view of a remote control 800 according to an exemplary embodiment. The remote control 800 includes a circuit board, shown as PCBA 816, positioned within and secured to the lower housing 804. The PCBA 816 is electrically coupled to a power button 809, a fast rotation mode button 810, and a slow rotation mode button 808.

[0124] refer to Figure 42 to Figure 43 , shows a rear perspective view of a remote control 800 according to an exemplary embodiment. The lower housing 804 includes a battery compartment door 820 that seals one or more batteries 826 in a recessed battery compartment 822. In a particular embodiment, the battery compartment 822 is configured to hold two AA batteries 824. In other embodiments, the battery compartment 822 is configured to hold a different battery type (i.e., AAA batteries). The fastener, shown as a screw 818, can be tightened to prevent the battery compartment door 820 from accidentally opening.

[0125] refer to Fig.44 , showing a backlash detection system according to an exemplary embodiment (see e.g. Fig.23220 in FIG. 220 ). The laser level mount can be utilized with a remote control device, such as remote controls 600 , 700 , and / or 800 . Except for the differences discussed herein, the motorized laser level mount 910 is substantially identical to the motorized laser level mount 10 and / or 210 . Various aspects of the rotational coupling or engagement between the rotating laser platform 912 and the housing cover 914 are shown. In other words, the platform 912 is rotationally engaged with the housing cover 914 . Unlike the previous embodiments that include ribs to act as a bearing surface, the housing cover 914 includes ribs or walls and / or bearing elements, which are shown as ball bearings 994 . The housing cover 914 includes an upper surface 980 on which the laser platform 912 rotates or pivots.

[0126] The housing cover 914 includes a front recess 992 defined within a wall 993 extending upwardly from the upper surface 980. The front recess 992 is positioned approximately centrally relative to the front legs and between the front channel and the slot (see, e.g., Fig.19 992 is configured to receive one or more bearing elements, shown as ball bearings 994, which serve as a support surface for the laser platform 912. The housing cover 914 further includes a rear rib 984 positioned between the slot and the rear leg. The rear rib 984 includes at least a portion having a dovetail shape with an inclined surface 987 extending at an angle from the upper surface 980 toward the laser platform 912 (when the laser mount 910 is assembled) and defining a space 996 between the rear rib 984 and the upper surface 980. The rear rib 984 also serves as a support surface for the laser platform 912. The rear rib 984 further includes a recess 988 defined by the wall 990. The recess 988 is configured to receive one or more bearing elements, shown as ball bearings 994.

[0127] The front recess 992, rear rib 984, and rear recess 988 are designed to interface with corresponding surfaces on the laser platform 912. Applicants believe that the use of ball bearings rather than ribs alone can reduce friction, vibration, and / or noise, and therefore reduce wear and / or tear on the motorized laser level mount 910.

[0128] Also shown is a perspective view of the inward or downward facing surface of the laser platform 912. The laser platform 912 includes an inward facing surface 924, wherein a wall 926 extends inwardly toward the housing cover 914. The wall 926 and specifically the engagement surface 928 are configured to mate with the rear rib 984 of the housing cover 914. The wall 926 includes an inclined surface engagement surface 928 that extends downwardly toward the housing cover 914 in a manner opposite to the inclined surface 987 of the rear rib 984. The laser platform 912 further includes a pair of bosses or protrusions 915 extending downwardly toward the housing cover 914. Each protrusion 915 includes a hole 917 that is configured to receive a fastener extending through the laser platform 912 and connecting it to an output slide (e.g., 290). The inward facing surface 924 includes a bearing channel 930 having a bearing channel surface 932. When the laser platform 912 rotates, the bearing channel surface 932 abuts against a ball bearing 994 positioned in the rear recess 988. In a particular embodiment, the bearing channel 930 has a curved shape.

[0129] The laser platform 912 further includes a front recess 918 having an inner surface 920. The front recess 918 is configured to engage with the wall 993 and / or the ball bearing 994 positioned within the front recess 992. The front recess 918 and specifically the bearing channel 922 is configured to receive and cooperate with the front recess 992 and / or the ball bearing 994 of the housing cover 214. The inner surface 920 of the front recess 918 includes a bearing channel surface 923. When the laser platform 912 rotates, the bearing channel surface 923 abuts against the ball bearing 994 positioned within the front recess 992. In a specific embodiment, the bearing channel 922 has a curved shape.

[0130] refer to Fig.45 , shows a perspective view from above of the motor 940 and the connection to the output system that rotates the laser platform 912. The motor 940 and gear train are substantially the same as the motor and gear train of the motorized laser level mount 10 and / or 210, except for the differences discussed herein. When the laser level mount 910 is assembled, the output drive 936 is positioned on the output slide (see, e.g., Fig.25 290 in) and the lower output slide (see e.g. Fig.25 916). The output drive 936 is positioned in front of the worm gear 938 that engages the worm 934. In other words, the output drive 936 is coupled to the gear train (i.e., the worm 934, the worm gear 938, etc.). Backlash is defined within the gear train of the motorized laser level mount 910 in the same manner as previously described. One or more spacers or support plates 944 are positioned around the motor 940 to provide stability within the housing 916.

[0131] refer to Figure 26 to Figure 27, showing a detailed view of the engagement between the worm 234 , worm gear 238 , and output drive 236 . Fig.26 A perspective view showing worm gear 238 coupled to and / or positioned about shaft 276, Fig. 27 A cross-sectional view of a portion of the output system is shown. A wave spring 274 is positioned within the output driver 236 below the uppermost portion of the shaft 276 and presses the output driver 236 downward into engagement with the worm gear 238 and / or the worm 234, thereby reducing backlash. The wave spring 274 allows the worm gear 238 and the output driver 236 to slide relative to each other, thereby creating a slip clutch. This slip clutch arrangement protects the gear train from abuse and / or misuse while also allowing a user to manually switch positions. The shaft 276 extends through the output driver 236 and the worm gear 238 and rotatably couples them. The output driver 236 is coupled to the post 252. When the laser level mount 210 is assembled, the post 252 extends through the output slide 290 and the lower output slide 241.

[0132] refer to Figure 46 to Figure 47 , showing a detailed view of the engagement between the worm 934 , worm gear 938 , and output drive 936 . Fig.46 A perspective view of worm gear 938 coupled to and / or positioned about shaft 976 is shown. Fig.47 A cross-sectional view of a portion of the output system is shown. A wave spring 974 is positioned within the output driver 936 below the uppermost portion of the shaft 976 and presses the output driver 936 downward into engagement with the worm gear 938 and / or worm 934, thereby reducing backlash. The wave spring 974 allows the worm gear 938 and the output driver 936 to slide relative to each other, thereby creating a slip clutch. This slip clutch arrangement protects the gear train from abuse and / or misuse while also allowing a user to manually switch positions. The shaft 976 extends through the output driver 936 and the worm gear 938 and rotatably couples them. The output driver 936 is coupled to the post 952. When the laser level mount 910 is assembled, the post 52 extends through the output slide and the lower output slide.

[0133] The worm gear 938 includes ridges or waves 978 on the surface facing the output driver 936. The ridges or waves 978 of the worm gear 938 engage with ridges 977 on the output driver 936. One or more supports, shown as shims 972, are positioned within the output driver 936. In a particular embodiment, at least one shim 972 is positioned on each side of the wave spring 974.

[0134] It should be understood that the drawings show exemplary embodiments in detail, and it should be understood that the present application is not limited to the details or methods set forth in the specification or shown in the drawings. It should also be understood that the terminology is for descriptive purposes only and should not be considered as limiting.

[0135] In view of this specification, further modifications and alternative embodiments of various aspects of the utility model will be obvious to those skilled in the art. Therefore, this specification should be interpreted as being only illustrative. The construction and arrangement shown in various exemplary embodiments are only illustrative. Although only several embodiments are described in detail in this disclosure, many modifications (for example, the size, size, structure, shape and proportion, parameter value, installation arrangement, use of materials, color, orientation, etc. of various elements) can be made without substantially departing from the novel teaching content and advantages of the subject described herein. Some elements shown as being integrally formed can be constructed of multiple parts or elements, the position of the elements can be reversed or otherwise changed, and the nature or quantity or position of discrete elements can be changed or changed. According to alternative embodiments, the order or sequence of any process, logic algorithm or method steps can be changed or reordered. Without departing from the scope of the utility model, other substitutions, modifications, changes and omissions can also be made to the design, operating conditions and arrangement of various exemplary embodiments.

[0136] Unless otherwise expressly stated, it is by no means intended that any method set forth herein be interpreted as requiring that its steps be performed in a specified order. Accordingly, in the absence of an actual enumeration of the order in which the steps of a method claim should be followed or of a specific statement in the claim or specification that the steps should be limited to a particular order, it is by no means intended that any particular order can be inferred. In addition, the article "a" as used herein is intended to include one or more parts or elements and is not intended to be interpreted as only one. As used herein, "rigidly coupled" means that two parts are coupled in a manner such that the parts move together in a fixed positional relationship when subjected to force.

[0137] For the purposes of this disclosure, the term "coupled" means that two components are directly or indirectly connected to each other. Such connection may be fixed in nature, or removable in nature. Such connection may be achieved by the two components and any additional intermediate components being integrally formed with each other as a single unitary body, or by the two components or the two components and any additional components being attached to each other. Such connection may be permanent in nature, or alternatively may be removable or releasable in nature.

[0138] Various embodiments of the present disclosure are directed to any combination of any features, and any such combination of features may be claimed in this or a future application. Any feature, element, or component of any exemplary embodiment discussed above may be used alone or in combination with any feature, element, or component of any other embodiment discussed above.

[0139] Although the present application describes a specific combination of features in the appended claims, different embodiments of the present invention relate to any combination of any features described herein (whether or not such combination is currently required), and any such combination of features may be claimed in this application or in future applications. Any feature, element or component of any exemplary embodiment discussed above may be used alone or in combination with any feature, element or component of any other embodiment discussed above.

[0140] In various exemplary embodiments, the relative dimensions (including angles, lengths, and radii) shown in the drawings are proportional. Actual measurements of the drawings will disclose the relative dimensions, angles, and ratios of the various exemplary embodiments. The various exemplary embodiments extend to various ranges around absolute and relative dimensions, angles, and ratios that can be determined from the drawings. The various exemplary embodiments include any combination of one or more relative dimensions or angles that can be determined from the drawings. Further, actual dimensions not explicitly stated in this specification may be determined by using ratios of dimensions measured in the drawings in combination with explicit dimensions stated in this specification.

Claims

1. A motorized mounting for a laser level device, characterized in that The motorized mount includes: case; a platform rotatably engaged with the housing, the platform including a laser level engagement structure; A platform adjustment mechanism is coupled to the platform so that the platform adjustment mechanism drives the rotation of the platform, the platform adjustment mechanism comprising: a stepper motor positioned within the housing, the stepper motor moving in steps; and a gear train coupled to the stepper motor; and a backlash detection system coupled to the stepper motor and the stage, the backlash detection system comprising a monitoring unit configured to detect when backlash is removed from the stage adjustment mechanism; Wherein, when the backlash has been removed from the platform adjustment mechanism, the monitoring unit counts the steps of the stepper motor so that the platform moves the same distance during a clockwise rotation of the platform as during a counterclockwise rotation of the platform.

2. The motorized mounting according to claim 1, characterized in that The backlash detection system further comprises: an output driver having a rotating column; A first pin; and The second pin; The rotating column extends between the first pin and the second pin.

3. The motorized mounting according to claim 2, characterized in that When the rotating column contacts neither the first pin nor the second pin, the monitoring unit of the backlash detection system measures at least one of the voltage and the resistance as being in a first state to determine that backlash exists in the platform adjustment mechanism.

4. The motorized mounting according to claim 3, characterized in that When a user sends a signal to the motorized mount to rotate the platform in a clockwise direction, the rotating post moves until the rotating post contacts the first pin, and wherein, when the rotating post contacts the first pin, the monitoring unit of the backlash detection system measures at least one of the voltage and the resistance as being in a second state different from the first state to determine that the backlash in the platform adjustment mechanism in the clockwise direction has been removed.

5. The motorized mounting member according to claim 3, characterized in that: When a user sends a signal to the motorized mount to rotate the platform in a counterclockwise direction, the rotating post moves until the rotating post contacts the second pin, and wherein, when the rotating post contacts the second pin, the monitoring unit of the backlash detection system measures at least one of the voltage and the resistance as being in a second state different from the first state to determine that the backlash in the platform adjustment mechanism in the counterclockwise direction has been removed.

6. The motorized mounting member according to claim 2, characterized in that: When the rotating post contacts the second pin and the user sends a signal to the motorized mount to rotate the platform in a clockwise direction, the rotating post moves until the rotating post contacts the first pin, and wherein, when the rotating post contacts the first pin, the monitoring unit of the backlash detection system measures at least one of the voltage and the resistance as being in a second state to determine that the backlash in the platform adjustment mechanism in the clockwise direction has been removed.

7. The motorized mounting member according to claim 2, characterized in that: When the rotating post is centered between the first pin and the second pin, the amount of backlash for rotating the platform in a clockwise direction is the same as the amount of backlash for rotating the platform in a counterclockwise direction.

8. The motorized mounting member according to claim 2, characterized in that: A pin spacing distance between the first pin and the second pin is defined between a point on an outer surface of the first pin and an opposite point on an outer surface of the second pin.

9. The motorized mounting according to claim 8, characterized in that The pin spacing distance is between 1mm and 10mm.

10. A motorized device, characterized in that: The motorized device comprises: case; a platform rotatably engaged with the housing; A platform adjustment mechanism is coupled to the platform so that the platform adjustment mechanism drives the rotation of the platform, the platform adjustment mechanism comprising: a motor positioned within the housing; and a gear train coupled to the motor, the gear train comprising a first gear having teeth and a second gear having teeth; A backlash detection system coupled to the gear train, the backlash detection system comprising: a monitoring unit configured to detect when teeth of the first gear directly contact teeth of the second gear; an output drive coupled to the gear train; and An output slide engages the output drive and is coupled to the platform.

11. The motorized device according to claim 10, characterized in that The motor is a stepper motor that moves in steps, and wherein, when the monitoring unit determines that the teeth of the first gear are in direct contact with the teeth of the second gear, the monitoring unit counts the steps of the stepper motor so that the distance moved by the platform during a clockwise rotation of the platform is the same as the distance moved during a counterclockwise rotation of the platform.

12. The motorized device according to claim 10, characterized in that The monitoring unit of the backlash detection system further comprises: A first pin; and The second pin is spaced a certain distance from the first pin so that the first pin does not contact the second pin.

13. The motorized device according to claim 12, characterized in that The backlash detection system further includes a rotating post coupled to the output driver, and wherein the rotating post extends between the first pin and the second pin.

14. The motorized device according to claim 13, characterized in that When the rotating column is not engaged with the first pin or the second pin, the monitoring unit of the backlash detection system measures at least one of voltage and resistance as being in a first state to determine that there is a space between the teeth of the first gear and the teeth of the second gear.

15. The motorized device according to claim 13, characterized in that When the rotating column engages the first pin, the monitoring unit of the backlash detection system measures at least one of voltage and resistance as being in a second state to determine that the teeth of the first gear directly contact the teeth of the second gear, thereby moving the platform in a clockwise direction.

16. The motorized device according to claim 13, characterized in that When the rotating column engages the second pin, the monitoring unit of the backlash detection system measures at least one of voltage and resistance as being in a second state to determine that the teeth of the first gear directly contact the teeth of the second gear, thereby moving the platform in a counterclockwise direction.

17. An adjustable motorized device, characterized in that: The adjustable motorized device comprises: case; a platform rotationally engaged with the housing via one or more ribs extending upwardly from the housing; A platform adjustment mechanism, the platform adjustment mechanism is connected to the platform, the platform adjustment mechanism comprises: a motor positioned within the housing; a gear train coupled to the motor; and an output slide coupled to the platform; A backlash detection system coupled to the gear train, the backlash detection system comprising: a microcontroller configured to detect when backlash is removed from the gear train; an output drive coupled to the gear train, the output drive comprising a rotating column; a first pin coupled to the output slider; and A second pin is spaced a certain distance from the first pin and is coupled to the output sliding member.

18. The adjustable motorized device of claim 17, wherein: When the microcontroller determines that the gear train contains backlash, the rotating post moves until contact is made with one of the first pin or the second pin.

19. The adjustable motorized device of claim 18, wherein: The motor is a stepper motor which moves in steps.

20. The adjustable motorized device of claim 19, wherein: When the microcontroller determines that there is no backlash in the gear train, the steps of the stepper motor are counted so that the platform travels the same distance during a clockwise rotation of the platform as during a counterclockwise rotation of the platform.

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