936 results about "Human engineering" patented technology

The invention discloses an endoscope with a built-in grabbing mechanism, and relates to the technical field of medical instruments. According to the technical scheme, the device comprises a clamp assembly, a driving outer pipe and a driving inner wire; the grabbing mechanism further comprises a grabbing mechanism shell, a first moving seat and a second moving seat, wherein the first moving seat and the second moving seat are arranged in the grabbing mechanism shell. The near end of the driving outer tube is connected with the first moving seat, and the near end of the driving inner wire is connected with the second moving seat; when the second moving seat is fixed relative to the grabbing mechanism shell, the first moving seat moves towards the far end direction relative to the grabbing mechanism shell so as to control the clamp assembly to execute the clamping action. According to the invention, the clamping action is carried out while forward extension is carried out, so that high-precision operation is facilitated, and tissues can be accurately clamped; and moreover, the grabbing mechanism is integrated in the endoscope handle, so that accurate single-hand control is facilitated, meanwhile, the clamping action is controlled in a button mode, the human engineering is met, and operation is convenient.

The virtually divided input trackpad disclosed herein is designed to provide enhanced ergonomic user interaction with digital interfaces. The virtually divided input trackpad comprises two virtually separated functional areas, each of which may be dedicated to distinct functionalities such as object movement and object rotation. This arrangement allows for simultaneous two-handed operation, offering users an intuitive, efficient, and accessible way of controlling digital environments, which is especially beneficial for users with specific accessibility needs.

An improved adjustable hinge for a multi-position ladder that is positionable in a variety of configurations while being ergonomic to adjust and which is structurally sound, rigid, and easy to adjust, light in weight, and has a long service life. The mating surfaces of the outer hinge plates, inner hinge plates, and inner hinge center spacer are large, contributing to overall hinge rigidity and stability. The size of the lock button and lock bracket are each relatively large, making them ergonomic to operate, while also being large enough to be operable by a gloved human hand. A method of assembling an improved adjustable hinge for a multi-position ladder that is positionable in a variety of configurations.

A vertically oriented honing guide for sharpening edged tools is disclosed. The vertically oriented honing guide for sharpening edged tools eliminates nearly all setup time and is compatible with commercial products by orienting the tools vertically and through the use of a linear guide system. This eliminates the need for tool clamping, facilitates direct angle setting, improves ergonomics, and allows the use of generic sharpening media. Yet, the vertically oriented honing guide for sharpening edged tools may alternatively incorporate a clamping mechanism to clamp tools being sharpened.

A rifle has a body, a magazine slot, a handle, a lower mechanism movable between primary and secondary positions in the direction of the barrel extension to drive bullets into the barrel and a monoblock rifle mechanism having an upper mechanism extending over the barrel of the rifle. A primary lock slot is provided on the upper mechanism, and a secondary lock slot on the barrel. One end of a main arm is rotatably connected to the barrel. A button is connected to the main arm so that the user can move the main arm. When the button is pushed from the barrel towards the upper mechanism, if the rifle mechanism is retracted, it will snap into the primary lock slot. If the rifle mechanism is retracted, it includes a mechanism stopper with a lock lever that fits into the primary lock slot and prevents the rifle mechanism from moving.

An operator control device for a man-up lift truck includes a handle pivotably arranged on a support structure at a pivot point. The support structure is secured to the lift truck such that horizontal and vertical positions of the pivot point are substantially fixed with respect to the lift truck during operation. The handle comprises an upper surface contoured to ergonomically support an operator's hand with an operator's wrist arranged substantially directly above the pivot point. The handle may be biased in a neutral position. Clockwise and counter-clockwise rotation of the handle may cause forward driving and stopping / reverse driving of the man-up lift truck, respectively. A thumb-operated switch can be arranged on the handle to control lift operations of the man-up lift truck. The operator control device provides dynamic stability to an operator and reduces carpal tunnel stresses and the like in the operator's wrist.

The invention relates to the field of aviation human factor engineering and state monitoring, and particularly discloses a pilot cognitive load real-time monitoring system based on multi-modal data, which comprises multi-modal data acquisition, dynamic preprocessing and time-space synchronization, adaptive feature extraction, a cognitive load intelligent calculation engine, and a multi-dimensional visual early warning and distributed collaborative integration platform. The multi-modal data acquisition module obtains four types of data and dynamically optimizes the precision; carrying out differential denoising on the preprocessing module and the space-time synchronization module; the adaptive feature extraction module extracts multiple types of features and performs weight adjustment and screening; the cognitive load intelligent calculation engine uses a hybrid model to adaptively adjust parameters and predict a trend; the multi-dimensional visual early warning module provides a load curve, a dynamic threshold adjustment value and multi-stage early warning; the distributed collaborative integration platform supports encryption transmission and cross-system docking. The method solves the problem that the prior art depends on subjective evaluation and single physiological indexes and cannot monitor the cognitive state of the pilot in real time, and realizes high-precision, high-adaptability and high-timeliness monitoring.

The invention discloses a man-machine suitability evaluation method for a mattress, and relates to the field of human engineering health monitoring, and the method comprises the steps: screening testers according to a BMI grading standard, and collecting the height, weight, gender, age, sleep habit and chronic pain medical history basic data of the testers to obtain the BMI values of the testers; inputting the BMI value of the tester into the mattress hardness selection model to obtain the hardness range of the tested mattress, arranging a to-be-tested mattress with selected hardness in a constant-temperature and constant-humidity experimental environment, and enabling the tester to lie on the to-be-tested mattress in sequence at a standard supine position and a standard lateral position. According to the method, the spine stiffness demand curve is predicted in real time through the LSTM neural network, millisecond-level dynamic support adjustment is achieved, the response speed is remarkably increased compared with a traditional method, and spine compensatory bending in sleep can be prevented; and in combination with pressure-blood oxygen coupled IRI index calculation, microcirculation disturbance is accurately warned before tissue injury, and the problem of local ischemia is solved through partition adjustment.

The disclosure includes a connection method to connect a shaft to a body. The body and movable latch may be an integral single molded plastic part connected by a flexible hinge, bushing, or a multipart hinge. In operation actuating the movable latch to raise or lower a latching beak within a corresponding open guide in the plastic body. A shaft into a shaft guide in the body which intersects the beak guide to temporarily latching the shaft to the body via a mounting fixture the shaft with the beak; and, wherein the body has a face end and a tail end.

The invention discloses an intelligent household electrical appliance human engineering design optimization method and device based on a large model, and the method comprises the steps: collecting user motion and interaction data through a camera, a motion capture sensor and other devices, and extracting joint motion, operation frequency and other ergonomic features after time synchronization, coordinate calibration and noise cleaning; secondly, constructing a knowledge graph fusing anthropometry and biomechanics knowledge, performing graph embedding through graph convolutional network coding, and performing attention mechanism fusion with feature vectors; and then, training is carried out based on a large model of a Transform architecture in combination with ergonomic scoring constraints, and home appliance design parameters are optimized by using an evolutionary algorithm to generate a personalized scheme adapted to the height and operation habits of the user. According to the method, through cooperation of multi-modal data driving and domain knowledge, the comfort, accessibility and user adaptation precision of the intelligent household electrical appliance are remarkably improved.

An apparatus and methods are provided for a handgun stabilizer that enables a shooter to very accurately fire a handgun while remaining well protected by a ballistic shield and looking through a bullet resistant viewing window comprising the ballistic shield. A high visibility green laser sight / high output white light illumination system may be mounted onto the handgun for aiming and illumination, with the handgun being precisely and removably mounted to the side of the handgun stabilizer at a location where the handgun's grip can be ergonomically grasped in the shooter's dominant hand, both for operating the handgun and for controlling the position and orientation of the ballistic shield for aiming purposes. An interface that enables the handgun to be precisely and removably mounted to the handgun stabilizer may comprise a quick-draw holster that is mounted directly onto the handgun stabilizer.

The present invention relates to a universal laundry pedestal system designed to accommodate various brands and sizes of laundry machines. The system comprises a pedestal frame with four legs, two support surfaces for creating a storage space, and a drainage system including a drainage hole and an optional outlet tube and plug. The system's also includes a custom-fitted laundry hamper which may incorporate ergonomic features such as side handles and rear wheels. This integrated system delivers enhanced utility and efficient water leak management, improving user experience and safety in the laundry room environment.

The invention relates to a speargun equipped with a system for improving performance and ergonomics. The essence of the invention is a system for stopping the contraction of the rubber bands on the lower side of the speargun in roller and inverted roller spearguns. The rubber bands are stopped by a stopping element positioned on the lower side of the speargun. In addition to this stopping element, the stopping of the rubber bands is also facilitated by a connecting element that links the left and right rubber bands, forming a loop that catches onto the stopping element, thereby preventing further contraction of the rubber bands. The stopping element can be implemented in a movable or fixed manner and positioned on the speargun in various ways, allowing different effects to be achieved — stopping the rubber bands at the end of the shot with full power and / or regulating the shot power. The speargun according to the invention allows quick and simple shot power regulation in both directions during the dive, as well as easier loading. Furthermore, by reducing vibrations at the end of the shot, it enhances shooting accuracy.

The invention relates to a wearable fitness monitoring system that uses advanced sensor technology to track real-time muscle engagement, posture, and fatigue levels during physical activity. The system comprises a capacitive sensor system, incorporating elastic silver fiber cloth and medical-grade silicone, for precise muscle movement detection; a motion sensor for tracking movement along multiple axes; and an AI-powered processing unit to provide ergonomic feedback, prevent injuries, and optimize performance. It features dynamic self-calibrating sensors that adjust to user-specific movements using machine learning algorithms. The system offers personalized workout plans, adjusting in real-time based on biometric feedback, environmental conditions, and muscle fatigue. Additionally, it integrates Bluetooth Low Energy (BLE) for wireless communication, haptic feedback for posture correction, and AR / VR for immersive workout guidance. The system includes cloud-based data storage with encryption and supports blockchain for secure data management, offering a comprehensive, personalized fitness experience that improves workout efficiency and safety.

A cooler utility cart device is disclosed, which is a modified utility trailer cart that is capable of transporting a large ice chest with the strength of one person. The cooler utility cart device comprises a base component that has a squared back section and triangular sides with a set of pneumatic tires and a handle. Once a cooler is fitted within the square backing, straps can be used to secure the cooler into the base component. The handle is telescopic and ergonomic and allows a user to pull the device and attached cooler along rough terrain with ease. Further, the cooler can be stabilized on the ground via placement of a prop component which attaches underneath the front of the cooler, allowing the cooler to be positioned parallel to the device.

An ergonomic device is for a writing instrument. The ergonomic device includes a body having a first curved side, and a second curved side opposite to the first curved side and to be adjacent to the writing instrument. The ergonomic device also includes a first arm between the first curved side and the second curved side and extending outwardly from the body. The first arm defines a first opening to receive an index finger and a middle finger of a user. The ergonomic device includes a second arm between the first curved side and the second curved side and opposite to the first arm. The second arm extends outwardly from the body and defines a second opening to receive a thumb of the user.

An irrigation fitting comprises a first fitting branch and a second fitting branch. The first fitting branch comprises a first planar region and a second planar region. The second fitting branch comprises a third planar region and a fourth planar region. The first planar region and the third planar region jointly comprise a first curved concave edge and a second curved concave edge. The second planar region and the fourth planar region jointly comprise a third curved concave edge and a fourth curved concave edge.

An extendable animal leash incorporates an advanced quick release functionality within its design. Housed in an ergonomic casing for comfortable handling, the leash can be swiftly disconnected using a quick leash release button. This button triggers a mechanism involving either a pull-pin connected to a cord, string, or cable, or a magnetic pull-pin activated by a magnetic force. Upon engagement, the quick release mechanism allows the leash to detach from the housing, providing immediate separation. The leash itself, made from durable materials like nylon, polyester, or leather, is retracted by a spring recoil mechanism. Additionally, the housing features a spool locking button for setting the leash length and ensuring controlled retraction. Constructed from lightweight and durable materials such as plastic or aluminum, the housing is designed for easy opening, facilitating maintenance and reassembly of the quick release components.

A shaving razor apparatus having a handle with a blade-carrying head at one end and a rotary assembly at the opposite end. The rotary assembly enables controlled pivoting of the handle and head in response to pressure. It includes a pivot rod retained transversely within a channel in the handle, along with securing members and grip portions that stabilize and assist manual adjustment. A spring biasing member provides rotational resistance and recoil bias during use. In the primary embodiment, the spring comprises a torsion coil and extended arm retained under preload tension by a catch at the distal end of the handle. Alternative embodiments may utilize elastic springs or leverage gravitational force to achieve similar biasing effects. The design enables ergonomic control and dynamic blade positioning, with modular components that allow for varied resistance profiles and interchangeable biasing elements.

A method for the automatic adjustment of a cockpit inside a road vehicle comprising the steps of determining anthropometric data of a driver; processing an ergonomic position of a model of the driver sitting on board the road vehicle; processing an optimal configuration of the cockpit; operating a plurality of actuator systems so as to cause the cockpit to reach the optimal configuration; wherein the ergonomic position of the model is processed in association with a minimum ground visibility; a minimum visibility of a control panel; and at least one first comfort angle of a body joint of the driver.

The invention discloses a nurse shoe and a preparation method thereof, and relates to the field of nurse shoes, the nurse shoe comprises an upper, a sole and a detachable insole, the insole is subjected to refined ergonomic design, pressure sinking convex-concave grooves with specific depths are formed in corresponding areas of the first toe, the second toe, the third toe, the fourth toe and the fifth toe and metatarsal bones; supporting pads with matched heights are arranged on the forefoot transverse arch and the foot inner and outer side longitudinal arches respectively, the full-periphery heel cup structure is arranged on the foot heel in a surrounding mode, an all-directional physiological supporting system is formed, the design can be precisely attached to the natural curve of the foot of the human body, pressure of different areas of the sole is evenly dispersed, the local stress peak value of the forefoot, the foot arches and the heel is effectively reduced, and the stability of the human body is improved. The sole is of a three-layer composite structure, the upper supporting layer provides reliable mechanical supporting, the middle buffering layer achieves efficient damping, the moderate-elasticity EVA anti-skid bottom layer enhances the road holding force of the wet and slippery ground through the anti-skid grain design, and the front 1 / 3 bending adaptive area improves the walking flexibility.

The present disclosure provides systems and techniques for determining a grip layout for a gun. The techniques include obtaining an image depicting a hand, obtaining calibration data associated with the image, calculating a real distance between a first landmark of the hand and a second landmark of the hand, and determining a grip layout for the gun based on the real distance between the first landmark and the second landmark. Calibration data may include a scale for the image or data that may be used to derive the scale, such as an object of known dimensions, an angular field of view, or a distance between the device used to capture the image and the hand. The grip layout may include a backstrap size, a sensor size, a sensor location on the gun, or any combination thereof.

Systems and methods for a system include a manipulator configured to support an instrument moveable within an instrument workspace, the instrument having an instrument frame of reference; an input device configured to receive a movement command from an operator; and a control system. The control system is configured to determine a difference between an orientation of the instrument and an orientation of a field of view of the instrument workspace; adjust, based on the difference, a mapping to apply to the movement command to generate an implementable movement command for the instrument; further adjust the mapping based on an ergonomic offset to provide for a difference between an orientation of the input device and the orientation of the instrument; map, based on the adjusted mapping, the movement command to a motion of the instrument in the instrument frame of reference; and cause the instrument to move according to the motion.

The present invention relates to a comb specifically designed to stimulate the Lao Gong (PC-8) acupressure point in the palm of the hand. This targeted pressure application leverages the gate control theory of pain to naturally reduce perceived pain and anxiety during high-stress events, including childbirth. The comb comprises: a comb body having a top; a series of ergonomic ridges positioned along the upper contour of the comb shaped to cradle the user's fingers, promoting a stable grip and precise alignment over the palm for consistent acupressure engagement; an edge of the comb body comprising two sides and a central portion, and a plurality of teeth extending from the central portion of the edge of the comb body, wherein the teeth of the comb are placed at angle configured to hit acupressure points on a hand of a user.

A plier apparatus for facilitating the insertion of drip couplings into tubing or pipe comprises first and second elongated bodies pivotally connected at a fulcrum point. The first elongated body integrates a tube grip configured to securely hold tubing ranging from 0.125 to 2 inches in diameter, while the second elongated body features a holder sized to accommodate drip couplings from 0.25 to 0.75 inches. This configuration enables simultaneous manipulation of both components through a single actuation motion. The apparatus incorporates a force-multiplying mechanism using opposing cams that reduces required hand strength by at least 50%. The plier apparatus can include ergonomic handles with anti-slip materials; a ratcheting mechanism allowing incremental advancement; interchangeable holder inserts accommodating multiple coupling sizes; a coupling alignment indicator system; and a depth control mechanism preventing over-insertion.

An animal-waste collection apparatus includes an elongate shaft with adjustable length, a forearm-stabilising assembly at a proximal region, and a coupling assembly at a distal region. The coupling assembly provides multi-axis articulation between a first coupling element fixed to the shaft and a second coupling element borne by interchangeable attachment bodies. A first attachment body supplies a support structure defining a seat for a removable receptacle, and a second attachment body comprises opposing jaws movable between open and closed positions to retain a flexible bag. Each attachment body is interchangeably engageable with the coupling assembly through the second coupling element. The apparatus enables selective collection of liquid or solid waste while permitting ergonomic handling across varied user statures and physical abilities.

An ergonomic manual driver includes a handle having ergonomic recesses. A manual driver includes an elongated shank and a handle. The elongated shank extends along a shank axis. The handle includes a handle body attached to the elongated shank. The handle body includes a proximal portion, a middle portion, and a distal portion. The middle portion includes middle portion pyramid-shaped recesses, distal portion faceted recesses, and / or proximal portion faceted recesses.