US 2020/0346324 A1Published application

Clamping device

AssigneeSMC Corporation

InventorsMikihito ISHII, Toshikazu NAKAJIMA

Life of this patent

Estimating the term…

Loading patent…

Abstract

A clamping device has a clamp arm pivotally housed inside a body, and a locating section for positioning workpieces is provided on an upper portion of the body. The locating section is formed with a slit hole which enables a claw portion of the clamp arm to protrude outside, and is provided inside with a shutter facing the slit hole and being movable. The claw portion of the clamp arm is inserted through a clamp hole of the shutter. Then, when the clamp arm moves inside the body in the axial direction and rotates, the shutter moves integrally with the clamp arm in the axial direction to cover the slit hole. Thus, the opening portion of the slit hole is suitably covered except that portion occupied by the claw portion so that foreign matter and the like can be prevented from entering the locating section through the slit hole.

Claims6

Dependent claims

A clamping device comprising:

a drive section having a displacement body movable in an axial direction under an action of supplying pressurized fluid;
a body connected to the drive section and having a mounting portion on which a workpiece is mounted;
a clamp arm connected to the displacement body and pivotably supported relative to the body;
a locating section protruding in the axial direction relative to the mounting portion and being inserted into a positioning hole formed in the workpiece;
wherein a linear motion of the displacement body outputted by the drive section is converted into a pivotal motion of the clamp arm,
a slit hole is formed in the locating section and opens along the axial direction,
a claw portion of the clamp arm housed inside the locating section protrudes through the slit hole,
the workpiece is clamped between the mounting portion and the claw portion,
a cover member that faces the slit hole and is movable in the axial direction is provided inside the locating section;
and
the cover member is provided with an opening into which the claw portion is inserted, the opening faces the slit hole.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/763,057Filed 7 Nov 2018
Priority: JP 2017-21885314 Nov 2017
Published: 5 Nov 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

B25B 5/064
With fluid drive: with clamping means pivoting around an axis perpendicular to the pressing direction
B25B 5/16
Clamps: details, e.g. jaws, jaw attachments
B25B
Tools or bench devices not otherwise provided for, for fastening, connecting, disengaging

Family

US 11,103,977 B2Related patent
US 2020/0346324 A1This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key