Back to results
US 12,515,368 B2Granted
Chain saw
AssigneeJiangsu Dongcheng Tools Technology Co., Ltd.
InventorGongyuan Fan
Life of this patent
Estimating the term…
Abstract
A chain saw, arranged with a guide plate and a chain. The chain saw includes a housing, a drive assembly arranged in the housing, and a fixing assembly tensioning the chain and locking the guide plate. The fixing assembly includes a shield abutting against the guide plate, a knob arranged on an outside of the shield, a tensioning member driven by the knob, a locking member snapped to the shield, and an elastic member disposed between the knob and the locking member. A side of the shield facing the locking member is arranged with a first clamping part, and a side of the locking member facing the shield is arranged with a second clamping part; in condition of the guide plate being locked, the elastic member deforms and abuts against the locking member, causing the second clamping part to snapped to the first clamping part.
Claims17
A chain saw, arranged with a guide plate and a chain;
- wherein the chain saw comprises a housing and a fixing assembly that tensions the chain and locks the guide plate;
- wherein the guide plate protrudes from a front end of the housing, and the chain is capable of carrying out a cutting operation;
- wherein the fixing assembly comprises a shield abutting against the guide plate, a knob arranged on an outside of the shield, a tensioning member driven by the knob, a locking member snapped to the shield, and an elastic member disposed between the knob and the locking member;
- wherein a side of the shield facing the locking member is arranged with a first clamping part, and a side of the locking member facing the shield is arranged with a second clamping part;
- in condition of the guide plate being locked, the elastic member deforms and abuts against the locking member, causing the second clamping part to snap to the first clamping part;
- wherein the fixing assembly further comprises a pressure plate fixed to the knob;
- the tensioning member is disposed between the knob and the pressure plate;
- the elastic member is disposed between the pressure plate and the locking member and abuts against the pressure plate and the locking member;
- the pressure plate comprises a substrate and a first jaw protruding from the substrate toward the locking member;
- the locking member comprises a second jaw protruding from a back side of the second clamping part toward the pressure plate;
- the first jaw abuts against the second jaw.
8 more elements
A chain saw, arranged with a guide plate and a chain;
- wherein the chain saw comprises a housing and a fixing assembly that tensions the chain and locks the guide plate;
- wherein the guide plate protrudes from a front end of the housing, and the chain is capable of carrying out a cutting operation;
- wherein the fixing assembly comprises a shield abutting against the guide plate, a knob arranged on an outside of the shield, a tensioning member driven by the knob, a clutch assembly connected between the knob and the tensioning member, a locking member snapped to the shield, an elastic member disposed between the knob and the locking member, a pressure plate fixed to the knob, a bolt cap fixed to the knob, a positioning bolt fixed to the housing, a cam connected to the tensioning member, and a push block fixed to the guide plate;
- wherein the elastic member is disposed between the pressure plate and the locking member and abuts against the pressure plate and the locking member, and the knob is threaded to the positioning bolt through the bolt cap;
- wherein the tensioning member comprises a body, a first connection part protruding from an end face of the body towards the locking member, a tooth arranged on another end face of the body, and a second connection part penetrating a first hole of the body and arranged in the first connection part;
- wherein the first connection part is connected to the locking member, and the second connection part is connected to the cam;
- during a movement of the tensioning member, the locking member and the cam are driven to move at the same time.
4 more elements
A chain saw, arranged with a guide plate and a chain;
- wherein the chain saw comprises a housing and a fixing assembly that tensions the chain and locks the guide plate;
- wherein the guide plate protrudes from a front end of the housing, and the chain is capable of carrying out a cutting operation;
- wherein the fixing assembly comprises a shield abutting against the guide plate, a knob arranged on an outside of the shield, a tensioning member driven by the knob, a locking member snapped to the shield, and an elastic member disposed between the knob and the locking member;
- wherein a side of the shield facing the locking member is arranged with a first clamping part, and a side of the locking member facing the shield is arranged with a second clamping part;
- in condition of the guide plate being locked, the elastic member deforms and abuts against the locking member, causing the second clamping part to snap to the first clamping part;
- wherein the first clamping part is first teeth, and the second clamping part is second teeth;
- in condition of the second clamping part snapping to the first clamping part, each of the first teeth extends along a corresponding radial direction perpendicular to a compression direction of the elastic member, and each of the second teeth extends along a corresponding radial direction perpendicular to the compression direction of the elastic member;
- the first teeth and the second teeth are snapped together in a direction parallel to the compression direction of the elastic member.
5 more elements
Dependencies are inferred from the claim text.