Disclosed is a tool for releasing an engaged state in which a receptacle-side engagement section formed on a side surface of a receptacle provided on a substrate is engaged with a connector-side engagement section of an optical connector that is attachable to and detachable from the receptacle. The tool includes: release claws to be inserted into respective gaps, each gap being formed between a member arranged between a pair of engagement side plate parts each being provided with the connector-side engagement section, and each engagement side plate part; and a guide part that comes into opposition with a side surface of the optical connector or the receptacle. By bringing the guide part into opposition with the side surface and sliding the release claws toward the substrate, the engagement side plate parts are spread outward by the release claws and the engaged state is released.

A regulator for a power tool for tightening a fastener in order to unite two or more pieces into a joint. The regulator regulates the power tool when tightening the fastener such that the fastener is tightened to a predetermined target. The regulator calculates an output signal to the power tool, which output signal is based on the product of the torque exerted by the power tool on the fastener and the angle for turning the fastener about its axis. The output signal is used for tightening the fastener to the predetermined target. The regulator is also applicable to a power tool for a rivet joint.

An over-loading protection pressing device adapted for pressing an object includes a housing, a pressing head and a protection portion. The housing has a clamping portion fixed thereon. The pressing head protrudes from the housing, and the pressing head is configured for pressing the object. The protection portion is configured to be received in the housing and coupled to the pressing head via a supporting pole. The protection portion is clamped by the clamping portion. When a pressure along a lengthwise direction of the housing is in a predetermined range, the clamping portion is clipped on a first position of the protection portion; when the pressure is over a predetermined range, the clamping portion can move from the first position to a second position.

A device, a modular construction system and a method for inserting an elastic ring into an inner groove of a workpiece opening provides that the device the ring is fixed by multiple retainers to specific retaining regions and between the retaining regions said ring acquires a wavy shape or crown shape in an axial direction.

A wheel hub removal tool is provided that allows a single technician to readily remove the hub using the vehicle steering. The tool is a generally U-shaped bracket that is seated on the ball-joint to support a pair of arms on opposite sides of the U-joint assembly. The arms carry corresponding blocks that are sized to seat between the drive axle housing and a component of the U-joint that is coupled to the wheel hub. The tool maintains a block on either side of the U-joint assembly so that pressure may be applied alternatively between the blocks to gradually dislodge the wheel hub from the axle. The tool is adjustable to accommodate different axle hub and bearing assembly configurations for different vehicles.

A puller for pulling an element, such as a pulley or seal, from an assembly to which it is fitted. The puller generally includes a central body having a longitudinal axis, an adjustment ring threaded on the body for moving longitudinally with rotation, slide followers coupled to the ring and moving longitudinally with ring rotation, a plurality of leg assemblies, each including a foot and two legs pivotly attaching the foot to the body so as to form a parallelogram, and a arm pivotly connecting each slide follower to a leg assembly for expanding or contracting the leg assembly. Each foot has one or more foot flanges, each with an engagement surface for engaging with the element to be pulled; the orientation of the engagement surfaces being predetermined so as to not disengage from the element and to provide uniform pull and minimum pressure.

The present invention relates to detaching equipment for detaching an electronic device and a detaching method thereof. A base of the detaching equipment comprises a bearing groove for bearing the electronic device. The first fixing unit and the second fixing unit are disposed at the base. A fixing member of the first fixing unit is capable of moving along a first direction to fix a housing of the electronic device. A protruding portion of the fixing member faces the bearing groove. A baffle of the second fixing unit moves along a second direction to be inserted between a motherboard and a battery unit. At least one lifting portion of a pry bar is provided with an arc. The arc of the lifting portion fits the battery unit of the electronic device, and the pry bar abuts against the protruding portion to lift and detach the battery unit.

The present invention relates to detaching equipment for detaching an electronic device and a detaching method thereof. A base of the detaching equipment comprises a bearing groove for bearing the electronic device. The first fixing unit and the second fixing unit are disposed at the base. A fixing member of the first fixing unit is capable of moving along a first direction to fix a housing of the electronic device. A protruding portion of the fixing member faces the bearing groove. A baffle of the second fixing unit moves along a second direction to be inserted between a motherboard and a battery unit. At least one lifting portion of a pry bar is provided with an arc. The arc of the lifting portion fits the battery unit of the electronic device, and the pry bar abuts against the protruding portion to lift and detach the battery unit.

A disc brake piston retraction tool includes a reversible ratchet wrench, a first pressure plate assembly, and a second pressure assembly. In the process of retracting a piston, a first engaging notch of a first L-shaped elastic plate of a first buckle member and a second engaging notch of a second L-shaped elastic plate of a second buckle member are pressed against a first force output shaft and a second force output shaft to provide an anti-rotation effect. Thus, when an operating handle of the reversible ratchet wrench is pulled back, it will not link a ratchet wheel, so as to carry out an effective operation of retracting the piston.

A mounting device is useable with a strip arrangement comprising a profile strip arrangeable or arranged at an edge area of a window pane of a motor vehicle and comprising a transport protection strip, wherein the transport protection strip is arranged at least with a portion of its cross section in a receiving area of the profile strip. The mounting device has a guide-in area configured to guide a free end of the strip arrangement into the mounting device, and a separation area configured to separate the transport protection strip from the profile strip.