CA1248568A - Hinge type relay - Google Patents
Hinge type relayInfo
- Publication number
- CA1248568A CA1248568A CA000505005A CA505005A CA1248568A CA 1248568 A CA1248568 A CA 1248568A CA 000505005 A CA000505005 A CA 000505005A CA 505005 A CA505005 A CA 505005A CA 1248568 A CA1248568 A CA 1248568A
- Authority
- CA
- Canada
- Prior art keywords
- armature
- type relay
- yoke
- hinge type
- hinge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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- Electromagnets (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
An armature of a hinge type relay having a movable contact flexibly supported at one side and a rocking hinge member at the other, the latter being downwardly bent, is combined with a fulcrum member which pivotably supports the hinge member at the lower portion of the upwardly bent portion of a yoke which supports the armature.
An armature of a hinge type relay having a movable contact flexibly supported at one side and a rocking hinge member at the other, the latter being downwardly bent, is combined with a fulcrum member which pivotably supports the hinge member at the lower portion of the upwardly bent portion of a yoke which supports the armature.
Description
2 ~2~8S~;8 TITLE OF THE INVENTION
HINGE TYPE RELAY
BACKGROUND OF THE INVENTION
FIELD OF T~E INVENTION
This invention relates to a hinge type relay, particularly a hinge type relay of the type wherein a fixed contact is wiped with a moving contact when both contacts separate from or move into contact with each other.
BRIEF DESCRIPTION OF THE DRAWINGS
Various objects, features and attendant advantages of the present invention will be more fully appreciated as the same becomes better understood from the detailed description of the drawings, wherein like reference characters designate like or corresponding parts throughout the several views, and wherein:
Fig. 1 is an elevation view of a conventional hinge type relay.
Fig. 2 is an exploded perspective view of an embodiment of this invention.
Fig. 3 is an elevation view of the embodiment of Fig. 2.
Fig. 4 is an enlarged view of a part of Fig. 3.
Figs. 5(a), (b) and (c) are views showing how the yoke of a relay embodying the invention may be made.
Fig. 6 is a perspective view of components of another embodiment of the invention.
Fig. 7 is an exploded perspective view of another embodiment.
Fig. 8 is an elevation view thereof and Fig. 9 is a perspective view of certain components of another embodiment.
DESCRIPTION OF THE PRIOR ART
Fig. 1 is an example of a conventional hinge type relay wherein an armature 1 is rockingly inserted and supported at the upper end portion 3a of an upwardly bent portion of a yoke 3 to which an electromagnet 2 is fixed. The armature rocks when electromagnet 2 is ~' ' ' ,il, '-,; ' `
. ~
12~3568 ~( 3 activated or deactivated, with the upper end portion 3a of yoke 3 as the fulcrum of the armature. The movable contact 5 of a movable arm 4 fixed on the armature i9 adapted to contact with or separate from a fixed contact 6, as shown by the ghost outline in Fig. 1~ and contacts 5 and 6 do not wipe.
In other words, the movable and the fixed contacts in the conventional hinge type relay only contact or separate, and the contacts do not wipe. Accordingly, there i5 no self-cleaning function of either contact, and bad electrical contact can occur readily due to foreign material such as oxides, sulfides, carbonized materials or dust and the abrasion which occurs at the contacts after they have been used for a long period.
SUMMARY OF THE INVENTION
The present invention provides a hinge type relay which wipes at both contacts of a fixed contact and a movable contact when the contacts come together or separate thereby overcoming the defect of a conventional hinge type relay noted hereinbefore.
An object of an aspect of the invention is to provide a hinge type relay having a self-cleaning function and a low electric resistance contact by always keeping the contact portion clean.
An object of an aspect of the invention is to provide a hinge type relay which is trouble-free for a long period of use and which has good durability.
An object of an aspect of the invention is to provide a hinge type relay which is simple in construction and easy to make.
An object of an aspect of the invention is to provide a hinge type relay wherein the armature does not easily fall off the yoke and is resistant to vibration.
., i~48568 - 3a -An aspect of this invention is as follows:
A hinge type relay having an armature, biasing means for biasing said armature to a first position and electro-magnetic coil means for moving said armature to a second position against force exerted thereon by said biasing means, said armature including a flexibly supported movable contact and remote therefrom a downwardly depending hinge member, a yoke supporting said armature and having an upwardly extending portion, said upwardly extending . , .,, r;~,, .
4 ~2~8S~8 portion including fulcrum means on which said hinge member is pivotably supported.
DETAIL~D DESCRIPTION OF T~E PR~FERRED EMBODIMENTS
Fig. 2, Fig. 3 and Fig. 4 illustrate a first embodiment of a hinge type relay according to this invention. Numeral 11 designates a yoke to which is fixed an electromagnet 12, the yoke being provided with an upwardly bent portion lla and having a projection llb to which one end of a spring 18 can be secured. Arms lld are formed in portion lla and are bent upwardly. A
cutaway portion llc is provided at the upper end of the upwardly bent portion lla.
The numeral 13 designates an armature, the armature being provided with a cutaway portion 13a to be inserted in cutaway portion llc of yoke 11. Yoke 11 is provided with a rocking hinge member 13b that is formed by bending of the armature. It also has a projection 13c to which the other end of spring 18 may be secured.
Numeral 14 designates a movable contact carrying member that is flexible and to which there is fixed a movable contact on the underside thereof, the movable contact carrying member being fixed to the upper surface of armature 13.
Accordingly, armature 13 is provided with a flexibly mounted movable contact 15 on one end thereof and a rocking hinge member 13b at the other end thereof.
Rocking hinge member 13b is placed on arms lld of yoke 11 so as to rock, whereby armature 13 is supported at the lower part of the upper bent portion lla of yoke 11 so as to be able to rock.
Arms lld of yoke 11 form a fulcrum piece which supports hinge member 13b of armature 13 enabling rocking movement.
The numeral 16 designates a base to which yoke 11 is secured, the relay base having arranged thereon a fixed contact 17 adapted to engage with movable contact 15.
Spring 18 has one end secured to projection llb for securing the spring to yoke 11, and the other end ~f'!
5 ~248568 secured to a projection 13c for securing the spring to armature 13.
Accordingly, when electromagnet 12 is not excited, armature 13 is, as shown by the solid line in Fig. 3, allowed to slant to the right in the Fig. letting the lower end portion of hinge member 13b of armature 13 be a fulcrum due to the tension of spring 18. In this position of armature 18 the vertical surfaces 13a' of cutaway portion 13a of armature 13 abut the upper inner surfaces of the bent portion lla of yoke 11. Further, referring to Fig. 3 (solid lines), projection 13c is positioned in its lowermost position and movable contact lS is positioned in its uppermost position, movable contact 15 being separated from fixed contact 17.
Further, at this time the inner surface at the shoulder 13d of the armature 13 which is the bent portion of the hinge member 13b of the armature 13 protrudes outwardly from portion lla of yoke 11 by a distance A.
When electromagnet 12 is excited by current, armature 13 is attracted by the excitation o~
electromagnet 12 and is rocked to the left in Fig. 3 letting the lower end portion of the hinge member 13b of armature be its fulcrum. Armature 13, acting against the tension of spring 18, is attracted to electromagnet 12.
When armature 13 is rocked to the left in Fig. 3 as shown by the ghost outlines in Fig. 3, movable contact 15 contacts with fixed contact 17, whereby a switch action is carried out to close an electric circuit (not shown) connected with both contacts 15 and 17. Further, the shoulder 13d of armature 13 moves inwardly towards portion lla of yoke 11 as a result of rocking of the armature, which causes the projected distance A to decrease slowly. The projected distance A disappears when armature 13 is rocked to the horizontal position.
Accordingly, armature 13 moves to the left in Fig. 3 by projected distance A. In other words, it moves ~ transversely to inner direction of the upper bent piece ; lla of yoke 11.
?` . ,~
~;
:
i2'18568 The transverse movement which occurs together with the rocking of armature 13 is described in Fig. 4 in detail.
Armature 13 shown by the solid line in Fig. 4 indicates a rocking condition when movable contact 15 contacts with fixed contact 17. At this time, the inner surface of shoulder 13d of armature 13 protrudes to the outside of the upper bent portion lla of yoke 11 by a slightly shorter projected distance a than the initial distance A. Then, when the rocking of armature 13 advances and a part of the armature abuts the iron core 12a of electromagnet 12, contact 15 moves to the left of fixed contact 17, as shown by the ghost line in Figure 4. The inner surface of a hinge member 13b of armature 13 contacts with the outer surface of the upper bent portion l~a of yoke 11, as a result of which the projected distance a of the shoulder 13d of the armature 13 disappears. Accordingly, movable contact 15 wipes fixed contact 17 in the B direction shown by an arrow by the projected distance a.
Further, in order to secure the contact pressure of the contact sufficiently, it is general to constitute so that the movable contact carrying member 14 may be deformed windingly with elasticity at the time of contact. The movable contact 15 moves in a reverse direction to the direction shown by the arrow line B due to the winding deformation of the movable contact carrying member 14, but the movement distance of the movable contact 15 according to the winding deformation of the movable contact carrying member 14, is very minute and thus the movement distance a to the B
direction shown by an arrow can be ignored without necessity of consideration.
Then, when current to the electromagnet is terminated, armature 13 is returned automatically and rockingly to the original state letting the lower end portion of hinge member 13b of the armature be the fulcrum. Movable contact 15 separates from fixed contact 17, whereby an electric circuit connected with 7 12~8568 both contacts 15 and 17 becomes an open circuit.
Further, movable contact 15 is wiped in the reverse direction to the B direction shown by arrow by movement distance a and then separates from fixed contact 17~ and the shoulder 13d of the armature 13 protrudes outwardly of the upper bent portion lla of the yoke by projected distance A, whereby armature 13 returns to the original slanting state.
Further, although the arm lld of the hinge type relay is bent upwards from the lower side of the upper bent portion lla of the yoke, arm lld may be formed as shown in Fig. 5.
In other words, arm lld of the hinge type relay can be formed by forming a projection piece lle at the lower side of the upper bent portion lla of the yoke as shown in Fig. 5(a), bending the projection piece lle in the direction C as shown in Fig. 5(b) and bending said projection piece lle in the direction D as shown in Fig.
5(c).
Fig. 6 shows another embodiment of a hinge type relay according to this invention in which the constitution of the latching portion of the armature 13 with yoke 11 is changed.
In other words, a cutaway portion 13b' is provided at the top end portion of hinge member 13b. Member 13b bends downwardly from two sides of armature 13, rather than from the end thereof, and a projection llf latches with a cutaway portion 13b' of hinge member 13b, thereby rockingly supporting armature 13. Accordingly, the projection llf of yoke 11 forms a fulcrum piece which rockingly supports the hinge member 13b of the armature 13.
A third embodiment of this invention is described in Fig. 7 and Fig. 8.
At the lower portion of the upper bent portion lla of yoke 11, supporting pieces llg are formed by being bent inwardly from both left and right sides. The supporting pieces llg are provided with cutaway portions llg' respectively at the upper surfaces thereof, the ~.
8 12'~85~
said cutaway portions llg' of the supporting pieces llg forming stoppers llh which protrude upwards at the outer ends of cutaway portions llg'.
At the lower portion of the hinge member 13b latching holes 13e' arP provided in order to latch with the cutaway portions llg' of the supporting pieces llg of the yoke 11.
Further, on the relay base 16 are arranged upper and lower fixed contacts 17 respectively corresponding to the upper and lower portions of the movable contact 15 .
Accordingly, armature 13 rocks letting the inserting portion of the latching holes 13e of the hinge member 13b and the cutaway portion llg' of the supporting piece llg of yoke 11 be a base point according to the excitation and deenergization of electromagnet 12, thereby causing the contact or separation with wiping of the upper and lower contacts 15 and 17, In this example, since stoppers llh formed at the supporting pieces llg of yoke 11 are vertically positioned at the outer portion of armature 13, it abuts the outer surface of armature 13 to prevent the armature falling off. Further, armature 13 is prevented from moving upwardly by spring 18.
Fig. 9 shows another embodiment of this invention.
In this Figure the latching holes 13e' shown in Fig. 7 are rem~ved and a cutaway portion 13f for insertion to the concave portions llg' of the supporting pieces llg provided at the lower part of the upper bent portion lla of yoke 11 are provided at the left and right sides of hinge member 13. The construction is the same as the Fig. 7 embodiment and armature 13 rocks letting the inserting portion of the iatching portion 13e of the hinge member 13b and the concave portions llg' of the supporting pieces llg of yoke 11 be a base point due -to the excitation and deenergization of electromagnet 12, whereby upper and lower contact 17 and movable contact 15 contact or separate causing the wiping operation.
r~
HINGE TYPE RELAY
BACKGROUND OF THE INVENTION
FIELD OF T~E INVENTION
This invention relates to a hinge type relay, particularly a hinge type relay of the type wherein a fixed contact is wiped with a moving contact when both contacts separate from or move into contact with each other.
BRIEF DESCRIPTION OF THE DRAWINGS
Various objects, features and attendant advantages of the present invention will be more fully appreciated as the same becomes better understood from the detailed description of the drawings, wherein like reference characters designate like or corresponding parts throughout the several views, and wherein:
Fig. 1 is an elevation view of a conventional hinge type relay.
Fig. 2 is an exploded perspective view of an embodiment of this invention.
Fig. 3 is an elevation view of the embodiment of Fig. 2.
Fig. 4 is an enlarged view of a part of Fig. 3.
Figs. 5(a), (b) and (c) are views showing how the yoke of a relay embodying the invention may be made.
Fig. 6 is a perspective view of components of another embodiment of the invention.
Fig. 7 is an exploded perspective view of another embodiment.
Fig. 8 is an elevation view thereof and Fig. 9 is a perspective view of certain components of another embodiment.
DESCRIPTION OF THE PRIOR ART
Fig. 1 is an example of a conventional hinge type relay wherein an armature 1 is rockingly inserted and supported at the upper end portion 3a of an upwardly bent portion of a yoke 3 to which an electromagnet 2 is fixed. The armature rocks when electromagnet 2 is ~' ' ' ,il, '-,; ' `
. ~
12~3568 ~( 3 activated or deactivated, with the upper end portion 3a of yoke 3 as the fulcrum of the armature. The movable contact 5 of a movable arm 4 fixed on the armature i9 adapted to contact with or separate from a fixed contact 6, as shown by the ghost outline in Fig. 1~ and contacts 5 and 6 do not wipe.
In other words, the movable and the fixed contacts in the conventional hinge type relay only contact or separate, and the contacts do not wipe. Accordingly, there i5 no self-cleaning function of either contact, and bad electrical contact can occur readily due to foreign material such as oxides, sulfides, carbonized materials or dust and the abrasion which occurs at the contacts after they have been used for a long period.
SUMMARY OF THE INVENTION
The present invention provides a hinge type relay which wipes at both contacts of a fixed contact and a movable contact when the contacts come together or separate thereby overcoming the defect of a conventional hinge type relay noted hereinbefore.
An object of an aspect of the invention is to provide a hinge type relay having a self-cleaning function and a low electric resistance contact by always keeping the contact portion clean.
An object of an aspect of the invention is to provide a hinge type relay which is trouble-free for a long period of use and which has good durability.
An object of an aspect of the invention is to provide a hinge type relay which is simple in construction and easy to make.
An object of an aspect of the invention is to provide a hinge type relay wherein the armature does not easily fall off the yoke and is resistant to vibration.
., i~48568 - 3a -An aspect of this invention is as follows:
A hinge type relay having an armature, biasing means for biasing said armature to a first position and electro-magnetic coil means for moving said armature to a second position against force exerted thereon by said biasing means, said armature including a flexibly supported movable contact and remote therefrom a downwardly depending hinge member, a yoke supporting said armature and having an upwardly extending portion, said upwardly extending . , .,, r;~,, .
4 ~2~8S~8 portion including fulcrum means on which said hinge member is pivotably supported.
DETAIL~D DESCRIPTION OF T~E PR~FERRED EMBODIMENTS
Fig. 2, Fig. 3 and Fig. 4 illustrate a first embodiment of a hinge type relay according to this invention. Numeral 11 designates a yoke to which is fixed an electromagnet 12, the yoke being provided with an upwardly bent portion lla and having a projection llb to which one end of a spring 18 can be secured. Arms lld are formed in portion lla and are bent upwardly. A
cutaway portion llc is provided at the upper end of the upwardly bent portion lla.
The numeral 13 designates an armature, the armature being provided with a cutaway portion 13a to be inserted in cutaway portion llc of yoke 11. Yoke 11 is provided with a rocking hinge member 13b that is formed by bending of the armature. It also has a projection 13c to which the other end of spring 18 may be secured.
Numeral 14 designates a movable contact carrying member that is flexible and to which there is fixed a movable contact on the underside thereof, the movable contact carrying member being fixed to the upper surface of armature 13.
Accordingly, armature 13 is provided with a flexibly mounted movable contact 15 on one end thereof and a rocking hinge member 13b at the other end thereof.
Rocking hinge member 13b is placed on arms lld of yoke 11 so as to rock, whereby armature 13 is supported at the lower part of the upper bent portion lla of yoke 11 so as to be able to rock.
Arms lld of yoke 11 form a fulcrum piece which supports hinge member 13b of armature 13 enabling rocking movement.
The numeral 16 designates a base to which yoke 11 is secured, the relay base having arranged thereon a fixed contact 17 adapted to engage with movable contact 15.
Spring 18 has one end secured to projection llb for securing the spring to yoke 11, and the other end ~f'!
5 ~248568 secured to a projection 13c for securing the spring to armature 13.
Accordingly, when electromagnet 12 is not excited, armature 13 is, as shown by the solid line in Fig. 3, allowed to slant to the right in the Fig. letting the lower end portion of hinge member 13b of armature 13 be a fulcrum due to the tension of spring 18. In this position of armature 18 the vertical surfaces 13a' of cutaway portion 13a of armature 13 abut the upper inner surfaces of the bent portion lla of yoke 11. Further, referring to Fig. 3 (solid lines), projection 13c is positioned in its lowermost position and movable contact lS is positioned in its uppermost position, movable contact 15 being separated from fixed contact 17.
Further, at this time the inner surface at the shoulder 13d of the armature 13 which is the bent portion of the hinge member 13b of the armature 13 protrudes outwardly from portion lla of yoke 11 by a distance A.
When electromagnet 12 is excited by current, armature 13 is attracted by the excitation o~
electromagnet 12 and is rocked to the left in Fig. 3 letting the lower end portion of the hinge member 13b of armature be its fulcrum. Armature 13, acting against the tension of spring 18, is attracted to electromagnet 12.
When armature 13 is rocked to the left in Fig. 3 as shown by the ghost outlines in Fig. 3, movable contact 15 contacts with fixed contact 17, whereby a switch action is carried out to close an electric circuit (not shown) connected with both contacts 15 and 17. Further, the shoulder 13d of armature 13 moves inwardly towards portion lla of yoke 11 as a result of rocking of the armature, which causes the projected distance A to decrease slowly. The projected distance A disappears when armature 13 is rocked to the horizontal position.
Accordingly, armature 13 moves to the left in Fig. 3 by projected distance A. In other words, it moves ~ transversely to inner direction of the upper bent piece ; lla of yoke 11.
?` . ,~
~;
:
i2'18568 The transverse movement which occurs together with the rocking of armature 13 is described in Fig. 4 in detail.
Armature 13 shown by the solid line in Fig. 4 indicates a rocking condition when movable contact 15 contacts with fixed contact 17. At this time, the inner surface of shoulder 13d of armature 13 protrudes to the outside of the upper bent portion lla of yoke 11 by a slightly shorter projected distance a than the initial distance A. Then, when the rocking of armature 13 advances and a part of the armature abuts the iron core 12a of electromagnet 12, contact 15 moves to the left of fixed contact 17, as shown by the ghost line in Figure 4. The inner surface of a hinge member 13b of armature 13 contacts with the outer surface of the upper bent portion l~a of yoke 11, as a result of which the projected distance a of the shoulder 13d of the armature 13 disappears. Accordingly, movable contact 15 wipes fixed contact 17 in the B direction shown by an arrow by the projected distance a.
Further, in order to secure the contact pressure of the contact sufficiently, it is general to constitute so that the movable contact carrying member 14 may be deformed windingly with elasticity at the time of contact. The movable contact 15 moves in a reverse direction to the direction shown by the arrow line B due to the winding deformation of the movable contact carrying member 14, but the movement distance of the movable contact 15 according to the winding deformation of the movable contact carrying member 14, is very minute and thus the movement distance a to the B
direction shown by an arrow can be ignored without necessity of consideration.
Then, when current to the electromagnet is terminated, armature 13 is returned automatically and rockingly to the original state letting the lower end portion of hinge member 13b of the armature be the fulcrum. Movable contact 15 separates from fixed contact 17, whereby an electric circuit connected with 7 12~8568 both contacts 15 and 17 becomes an open circuit.
Further, movable contact 15 is wiped in the reverse direction to the B direction shown by arrow by movement distance a and then separates from fixed contact 17~ and the shoulder 13d of the armature 13 protrudes outwardly of the upper bent portion lla of the yoke by projected distance A, whereby armature 13 returns to the original slanting state.
Further, although the arm lld of the hinge type relay is bent upwards from the lower side of the upper bent portion lla of the yoke, arm lld may be formed as shown in Fig. 5.
In other words, arm lld of the hinge type relay can be formed by forming a projection piece lle at the lower side of the upper bent portion lla of the yoke as shown in Fig. 5(a), bending the projection piece lle in the direction C as shown in Fig. 5(b) and bending said projection piece lle in the direction D as shown in Fig.
5(c).
Fig. 6 shows another embodiment of a hinge type relay according to this invention in which the constitution of the latching portion of the armature 13 with yoke 11 is changed.
In other words, a cutaway portion 13b' is provided at the top end portion of hinge member 13b. Member 13b bends downwardly from two sides of armature 13, rather than from the end thereof, and a projection llf latches with a cutaway portion 13b' of hinge member 13b, thereby rockingly supporting armature 13. Accordingly, the projection llf of yoke 11 forms a fulcrum piece which rockingly supports the hinge member 13b of the armature 13.
A third embodiment of this invention is described in Fig. 7 and Fig. 8.
At the lower portion of the upper bent portion lla of yoke 11, supporting pieces llg are formed by being bent inwardly from both left and right sides. The supporting pieces llg are provided with cutaway portions llg' respectively at the upper surfaces thereof, the ~.
8 12'~85~
said cutaway portions llg' of the supporting pieces llg forming stoppers llh which protrude upwards at the outer ends of cutaway portions llg'.
At the lower portion of the hinge member 13b latching holes 13e' arP provided in order to latch with the cutaway portions llg' of the supporting pieces llg of the yoke 11.
Further, on the relay base 16 are arranged upper and lower fixed contacts 17 respectively corresponding to the upper and lower portions of the movable contact 15 .
Accordingly, armature 13 rocks letting the inserting portion of the latching holes 13e of the hinge member 13b and the cutaway portion llg' of the supporting piece llg of yoke 11 be a base point according to the excitation and deenergization of electromagnet 12, thereby causing the contact or separation with wiping of the upper and lower contacts 15 and 17, In this example, since stoppers llh formed at the supporting pieces llg of yoke 11 are vertically positioned at the outer portion of armature 13, it abuts the outer surface of armature 13 to prevent the armature falling off. Further, armature 13 is prevented from moving upwardly by spring 18.
Fig. 9 shows another embodiment of this invention.
In this Figure the latching holes 13e' shown in Fig. 7 are rem~ved and a cutaway portion 13f for insertion to the concave portions llg' of the supporting pieces llg provided at the lower part of the upper bent portion lla of yoke 11 are provided at the left and right sides of hinge member 13. The construction is the same as the Fig. 7 embodiment and armature 13 rocks letting the inserting portion of the iatching portion 13e of the hinge member 13b and the concave portions llg' of the supporting pieces llg of yoke 11 be a base point due -to the excitation and deenergization of electromagnet 12, whereby upper and lower contact 17 and movable contact 15 contact or separate causing the wiping operation.
r~
Claims (4)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A hinge type relay having an armature, biasing means for biasing said armature to a first position and electro-magnetic coil means for moving said armature to a second position against force exerted thereon by said biasing means, said armature including a flexibly supported movable contact and remote therefrom a downwardly depending hinge member, a yoke supporting said armature and having an upwardly extending portion, said upwardly extending portion including fulcrum means on which said hinge member is pivotably supported.
2. A hinge type relay according to claim 1 wherein said fulcrum means is an arm of said upwardly extending portion itself bent upwardly.
3. A hinge type relay according to claim 1 wherein a cutaway portion is provided at the lower end portion of said hinge member and said fulcrum means is provided as a projection at the lower part of said upwardly extending portion inserted into said cutaway portion.
4. A hinge type relay according to claim 3 including stop means on said projection inhibiting said armature from falling off said projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000505005A CA1248568A (en) | 1986-03-25 | 1986-03-25 | Hinge type relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000505005A CA1248568A (en) | 1986-03-25 | 1986-03-25 | Hinge type relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1248568A true CA1248568A (en) | 1989-01-10 |
Family
ID=4132737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000505005A Expired CA1248568A (en) | 1986-03-25 | 1986-03-25 | Hinge type relay |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1248568A (en) |
-
1986
- 1986-03-25 CA CA000505005A patent/CA1248568A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |