JPH0447909Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a contact-type energizing fitting that electrically connects an electric wire routed to a hinged door and an electric wire on the door frame side. Even if changes occur over time,
This invention relates to a contact-type current-carrying fitting whose contacts always make sure contact.

[Prior Art] When energizing an electrical device such as an electric lock installed on a door, methods such as a current-carrying hinge, a current-carrying metal fitting, or a wireless method are used to electrically connect the electric wires on the door side and the electric wires on the door frame side. used.

There are two types of current-carrying fittings: a wired type and a contact type. The contact-type current-carrying fitting is composed of a male contact A and a female contact B, as shown in Fig. 5. The male contact A is connected to the edge of the door D. An electric lock F is fixed to part E.
and male contact A are connected by electric wire G,
A female contact B is fixed at a position I opposite the end E of the door frame H, and an electric wire J is connected to the female contact I. When the door D is closed, both contacts A and B
are electrically connected.

FIG. 7 shows a case where the male contact A is fixed to the hinge side end K of the door D, and the female contact B is fixed to the position L opposite to the end K of the door frame H.

As explained above, the contact type current-carrying metal fitting has the advantage of simpler wiring compared to the wired type, but it has the following disadvantages.

[Problem that the invention attempts to solve]

The contact-type energizing metal fittings installed on the door and door frame change over time as the gap between the door and the door frame changes.
There is a drawback that reliability decreases because the bonding between the pair of contacts becomes incomplete.

The present invention has been made to solve these problems.

[Means for solving problems]

This invention ensures that the contact-type current-carrying metal fitting always maintains a reliable electrical connection even if the gap between the door and the door frame increases or decreases over time. A flexible contact 10 whose tip protrudes toward the gap formed between the frame and the frame is fixed to the movable member 5 fitted into the case 1 so as to be biased toward the gap and slidable in the same direction. It has a current-carrying metal fitting having a tapered surface 9 formed on both sides in a direction perpendicular to the biasing direction of the tip end face which abuts a mating current-carrying metal fitting when the door is closed, and a tapered surface 21 which abuts against the tapered surface 9 when the door is closed. and a current-carrying metal fitting having a movable member 18 which is fitted into the case 14 so as to be slidable in the perpendicular direction and has a fixed contact 20 that abuts the flexible contact 10. Install one energizing metal fitting at the end of the hinged door, with the other side facing the door frame.

[Effect]

When the door is closed with the above configuration, the tapered surfaces 9 formed on both sides of the tip of the movable member 5 having the flexible contacts 10 abut against the tapered surfaces 21 of the mating movable member 18 .

Since the mating movable member 18 is slidable with respect to the case 14, it moves so that the pair of tapered surfaces 9 and 21 on both sides are pressed together, and the two movable members 5 and 18 are aligned. .

Since the movable member 5 having the flexible contacts 10 protrudes toward the gap, the contacts 10 and 20 of both movable members 5 and 18 collide;
Since the movable member 5 having the flexible contacts 10 is slidable and the flexible contacts 10 also bend, the contacts 10 and 20 of both movable members 5 and 18 are brought into close contact with each other with appropriate contact pressure. do.

In this way, both movable members 5 and 18 are aligned by moving in their respective sliding directions, so that even if the gap between the hinged door and the door frame increases or decreases, the contacts 10 and 18 of both movable members 5 and 18 are always accurately aligned. 20 touch.

〔Example〕

Embodiments of the present invention will be described with reference to the drawings.

Figure 1 shows a pair of contact-type energizing metal fittings L and M installed at the upper end of the swinging door D and the opposing positions of the door frame H.
FIG. 2 is a perspective view of the current-carrying metal fittings L and M. FIG.

In Fig. 2, a case 1 of a current-carrying metal fitting L embedded in the upper end of a swinging door D has an opening 2 in the direction of the door frame H, and a bracket 3 protruding from both sides is connected to the case 1 by fastening means such as bolts. It is fixed to the swing door D.

Long holes 4 are provided protruding from both side walls of the case 1.
Pins 6 protruding from both ends of a movable member 5 housed in the case 1 are slidably inserted into the housing.

Case 1 has a spring support 7 from approximately the center of the inner surface of the bottom wall.
A spring 8 is inserted between the bottom surface of the movable member 5 and the spring support 7 (see FIG. 1).

Therefore, the movable member 5 is urged upward of the hinged door D and slides upward until the pin 6 comes into contact with the upper end of the elongated hole 4.

Male-shaped tapered surfaces 9 are formed on both sides of the end surface of the movable member 5 on the side of the door frame H (see the plan view in FIG. 3), and a flexible surface is formed approximately in the center of the upper part of the movable member 5. Three contacts 10 are fixedly installed in parallel.

The contact 10 has a U-shape with a tip 10a projecting upward from the hinged door D, as shown in the longitudinal cross-sectional view of FIG.

The contact 10 has an electric wire 1 inserted through a hole 11 provided in the case 1 at the end opposite to the tip 10a.
2 connects.

Reference numeral 13 is a connector connected to the end of the electric wire 12 (see FIG. 4).

On the other hand, in the case 14 of the current-carrying metal fitting M embedded in the door frame H, brackets 15 protruding from both sides are fixed to the door frame H by fastening means such as bolts.

Holes 16 are provided in both side walls of the case 14.
A guide rod 17 is inserted into and fixed to 6.

The case 14 is open on the side of the hinged door, and a movable member 18 housed therein is loosely fitted around the guide rod 17, and a spring is wound around the guide rod 17 between both side surfaces of the movable member 18 and both inner surfaces of the case 14. 19 are inserted respectively.

Therefore, the movable member 18 can slide on the guide rod 17, and is kept at a substantially central position by being pressed by the springs 19 on both sides.

The movable member 18 has three contacts 20 fixedly arranged in parallel substantially at the center of its lower surface, and female-shaped tapered surfaces 21 are provided on both sides.

As shown in FIG. 4, an electric wire 22 on the door frame side is connected to the contact 20.

The energizing metal fittings L and M configured as described above are provided at opposite positions of the hinged door D and the door frame H, and the male tapered surface 9 is located at a position substantially opposite to the female tapered surface 21.

The operation of the contact-type current-carrying metal fitting configured as described above will be explained.

When the hinged door D is closed, the tapered surface 9 of the movable member 5 abuts against the tapered surface 21 of the mating movable member 18.

Since the mating movable member 18 is slidable with respect to the case 14, the pair of tapered surfaces 9, 2 on one side
1 is pressed, and the pair of tapered surfaces 9 on the other side,
21 is not pressed, the movable member 18 is moved by the lateral force generated on the tapered surfaces 9, 21 on the pressed side, and the movable member 18 is moved to a position where each pair of tapered surfaces 9, 21 on both sides are equally pressed. The movable member 18
movement stops.

In this way, the positions of both movable members 5, 18 are aligned, so that the contact 1 on both movable members 5, 18
0 and 20 will not cause any positional deviation.

Further, the flexible contact 10 that collides with the contact 20 is bent, and the movable member 5 descends against the spring 8, so that it comes into contact with the contact 20 with appropriate pressure.

In this way, both movable members 5 and 18 are aligned vertically and horizontally, so that the hinged door D and the door frame H
Even if there is an increase or decrease in the gap between contacts 10 and 2,
Since the contacts 0 always make contact with an accurate and appropriate pressure, there is no possibility of poor or insufficient contact due to misalignment of both contacts.

In the above explanation, the energizing metal fittings L and M are connected to the hinged door D.
Although it is installed at the top of the door frame H, it may also be installed at the side end opposite to the hinge of the hinged door.

Further, although the current-carrying metal fitting L is installed on the hinged door D and the current-carrying metal fitting M is installed on the door frame H, conversely, the current-carrying metal fitting L may be installed on the door frame and the current-carrying metal fitting M may be installed on the hinged door side.

[Effect of idea]

This invention has a structure in which the pair of contact-type energizing metal fittings installed on the hinged door and door frame are self-aligned with each other in two directions, vertically and horizontally, so that even if the gap between the hinged door and the door frame changes over time, the contacts will always remain accurate. Since contact is made with appropriate pressure, the drawbacks of contact-type current-carrying fittings are eliminated and reliability is improved.

[Brief explanation of the drawing]

1 to 4 show embodiments of the present invention.
The figure is a partially cutaway front view of the energizing metal fittings installed on the hinged door and the door frame, Figure 2 is a perspective view of the same as above, Figure 3 is a view in the direction of the X and Y arrows in Figure 1, and Figure 4 is FIG. 5 is a perspective view of a conventional contact-type current-carrying metal fitting, and FIGS. 6 and 7 are front views showing the installation positions of the conventional contact-type current-carrying metal fittings. D...Holding door, H...Door frame, 1...Case, 4
...Elongated hole, 5...Movable member, 6...Pin, 8...
Spring, 9...Tapered surface, 10...Contact,
14... Case, 17... Guide rod, 18... Movable member, 19... Spring, 20... Contact, 21
...Tapered surface.

Claims (1)

[Scope of utility model registration request] In a contact-type energizing fitting that electrically connects an electric wire routed to a hinged door and an electric wire on the door frame side, a case is provided that can move forward and backward into a gap that occurs between the hinged door and the door frame when the hinged door is closed. A flexible contact 10 is fixed to the tip of the movable member 5 in the direction of the gap, which is inserted into the movable member 5 and urged in the direction of the gap,
The movable member 5 collides with the mating energized metal fitting when the door is closed.
A current-carrying metal fitting having tapered surfaces 9 formed on both sides of the abutting surface, and two tapered surfaces 21 that abut each of the tapered surfaces 9 when the door is closed, and a straight line connecting the two tapered surfaces. Case 1 can be slid in the direction
The movable member 18 is fitted into the movable member 18, and the contact 20 that abuts the flexible contact 10 is fixed to the movable member 18. A contact type current-carrying fitting characterized by being installed opposite to a frame.