Pressing device

Patent metadata

Field	Value
Publication number	US-9410354-B2
Application number	US-201214384728-A
Country	US
Kind code	B2
Filing date	Nov 1, 2012
Priority date	Mar 12, 2012
Publication date	Aug 9, 2016
Grant date	Aug 9, 2016

Abstract

A pressing device is provided with a pin member, a coil-like spring member, and a spring receiving member which has a through-hole for allowing the pin member to be inserted therein and which supports one end of the spring member. The pin member has: a shaft section which has the spring member disposed on the outer peripheral side thereof; a head section which is interconnected with one end of the shaft section and which can come into contact with the contact surface of the opening/closing body; a spring support section which supports the other end of the spring member; and an engagement claw which engages with the outer surface of the mounting portion and which prevents the pressing device from being dislocated from the mounting portion.

First claim

The invention claimed is:

1. A biasing device to be mounted to a mounting portion provided to one of an opening/closing body capable of opening and closing an opening of a stationary body and the stationary body to thereby bias the opening/closing body in a direction to open the opening/closing body when the opening/closing body closes the opening of the stationary body, the biasing device including:
a pin member;
a coil-shaped spring member; and
a spring receiving member that includes a through hole into which the pin member is inserted, and is arranged to support one end of the spring member,
wherein the pin member includes
a shaft portion, around an outer periphery of which the spring member is disposed,
a head portion that is provided adjacent to one end of the shaft portion so as to be brought into contact with a contact surface of the one of the stationary body and the opening/closing body,
a spring supporting portion arranged to support the other end of the spring member, and
an engaging portion arranged to engage the mounting portion to prevent the biasing device from being demounted from the mounting portion, and
wherein the mounting portion has a concave shape, and includes an engaging hole provided to a bottom portion of the mounting portion, and
wherein the engaging portion is arranged to engage an outside hole edge of the engaging hole, and wherein the engaging portion allows the pin member to move axially with respect to the spring receiving member and the mounting portion during opening and closing.

2. A biasing device to be mounted to a mounting portion provided to one of an opening/closing body capable of opening and closing an opening of a stationary body and the stationary body to thereby bias the opening/closing body in a direction to open the opening/closing body when the opening/closing body closes the opening of the stationary body, the biasing device including:
a pin member;
a coil-shaped spring member; and
a spring receiving member that includes a through hole into which the pin member is inserted, and is arranged to support one end of the spring member,
wherein the pin member includes
a shaft portion, around an outer periphery of which the spring member is disposed,
a head portion that is provided adjacent to one end of the shaft portion so as to be brought into contact with a contact surface of the one of the stationary body and the opening/closing body,
a spring supporting portion arranged to support the other end of the spring member, and
an engaging portion arranged to engage the mounting portion to prevent the biasing device from being demounted from the mounting portion, and
wherein, in a state where the biasing device is yet to be mounted to the mounting portion, the engaging portion is arranged to prevent the spring receiving member from being demounted from the pin member due to a biasing force of the spring member, and wherein the engaging portion allows the pin member to move axially with respect to the spring receiving member and the mounting portion during opening and closing.

3. The biasing device of claim 2 ,
wherein the spring receiving member includes a notch portion on a lateral side thereof, and
wherein, in the state where the biasing device is yet to be mounted to the mounting portion, the engaging portion engage the notch portion.

4. The biasing device of claim 1 ,
wherein the spring receiving member has a cylindrical shape and includes a protruding portion that protrudes outward in a radial direction on an outer periphery thereof, and
wherein the protruding portion is arranged to support the one end of the spring member.

5. The biasing device of claim 1 ,
wherein the head portion includes
a contact portion that is made from one of a rubber material and a soft resin material, and is arranged to be brought into contact with the contact surface, and
a flange portion jutting more outward in the radial direction than the contact portion.

6. The biasing device of claim 5 ,
wherein the head portion includes a void portion at a radial inward portion in the flange portion, and
wherein the flange portion is flexible in the radial direction.

7. The biasing device of claim 1 ,
wherein, in a state where the biasing device is yet to be assembled, the pin member and the spring receiving member are in a primary formed state where they are monolithically connected.

8. The biasing device of claim 7 ,
wherein the engaging portion includes plural elastic hook members provided at one end of the pin member on the opposite side to the head portion, and
wherein, in the primary formed state, the spring receiving member is connected to distal ends of the elastic hook members so as to prevent deformation of the elastic hook members.

9. The biasing device of claim 7 ,
wherein, in the primary formed state, the pin member and the spring receiving member are coaxially connected so as to be insertable into the spring member.

10. The biasing device of claim 4 ,
wherein the protruding portion provided on the outer periphery of the spring receiving member is flexible in the radial direction.

11. The biasing device of claim 1 ,
wherein the shaft portion includes a first pillar portion extending in an axial direction and a second pillar portion provided with a given gap with the first pillar portion, and
wherein the engaging portion includes engaging portions protruding outward and respectively provided to the first pillar portion and the second pillar portion on outer peripheries on distal end sides, the engaging portions being flexible inward.

12. The biasing device of claim 11 ,
wherein the shaft portion includes a coupling portion arranged to couple a distal end of the first pillar portion and a distal end of the second pillar portion.

13. The biasing device of claim 12 ,
wherein the shaft portion includes a third pillar portion disposed between the first pillar portion and the second pillar portion, one end of the third pillar portion being coupled to the coupling portion.

14. The biasing device of claim 2 ,
wherein the spring receiving member has a cylindrical shape and includes a protruding portion that protrudes outward in a radical direction on an outer periphery thereof, and
wherein the protruding portion is arranged to support the one end of the spring member.

15. The biasing device of claim 2 ,
wherein the shaft portion includes a first pillar portion extending in an axial direction and a second pillar portion provided with a given gap with the first pillar portion, and
wherein the engaging portion includes engaging portions protruding outward and respectively provided to the first pillar portion and the second pillar portion on outer peripheries on distal end sides, the engaging portions being flexible inward.

Assignees

• Piolax Inc

Inventors

• Nakasone Hisashi

Classifications

• E05Y2201/426

  for the initial opening movement · CPC title

• F03G1/10

  for producing output movement other than rotary, e.g. vibratory · CPC title

• F16F2230/0005

  Attachment, e.g. to facilitate mounting onto confer adjustability · CPC title

• E05F3/18 Primary

  with counteracting springs (double-acting springs E05F1/14) · CPC title

• E05Y2900/538

  Interior lids · CPC title