JP2011140837A - Guide cap for latch plate of door lock handle device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a guide cap for a latch plate, which is easily and accurately mounted to the tip part of the latch plate and smoothly fitted and engaged with a receiving metal part of the latch plate. <P>SOLUTION: A front face plate part 2 and a rear face plate part 3 facing each other are blocked with connecting edge parts 4, 5 on three sides out of four sides to form a cavity part 7 storing the tip part of the latch plate 14, and one remaining side is opened to form an insertion port 8 for the tip part of the latch plate 14. The connecting edge parts 4, 5 of the three sides are formed into a curved shape in a cross-sectional outer peripheral contour, and the front face plate part 2 and the rear face plate part 3 are formed into a recessed shape toward the cavity part 7. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a guide cap that is attached to the distal end portion of a clasp plate of a door lock handle device.

  As exemplified in Patent Document 1 and Patent Document 2, in a door lock handle device generally used in a switchboard cabinet or the like, a device body equipped with an operation handle is fixed to the door and directly or indirectly to the operation handle. The clasp plate, which is equipped with an interlocking mechanism, is rotated between the locking position and the unlocking position by rotating the operation handle, and the front end of the clasp plate is engaged with or disengaged from the receiving portion provided on the cabinet body side. Thus, the door is locked or unlocked to the cabinet body in the closed position.

  When there is a gap between the front end of the clasp plate and the receiving portion, the door is movable with respect to the cabinet and the door rattles due to wind pressure or external vibration. Engagement with is done by sliding them together. At the beginning of mounting, even if the stopper plate is set at a normal position where the rotation trajectory of the tip portion does not hit the side end surface of the receiving portion, the stopper plate is moved due to subsequent displacement of the hinge shaft or distortion of the member. The rotation trajectory of the front end portion of the plate may abut against the side end surface of the metal receiving portion, and the front end portion of the clasp plate may not smoothly slide and engage with the metal receiving portion.

JP-A-8-53959

JP 2004-156298 A

  SUMMARY OF THE INVENTION An object of the present invention is to provide a guide cap for a stopper plate that can be easily and accurately attached to the distal end portion of the stopper plate and that smoothly engages with the receiving portion of the stopper plate. It is to be.

  In the clasp plate guide cap of the present invention, the front plate portion and the back plate portion facing each other are closed by the coupling edge portion on three sides of the four sides to form a hollow portion in which the tip portion of the clasp plate is accommodated. The remaining one side is opened to serve as an insertion port at the tip of the stopper plate, and the connecting edge portion of the three sides is formed in a curved shape in the outer peripheral contour of the cross section, and the front plate portion and A back plate portion is formed to be recessed toward the cavity portion.

  In the stopper plate guide cap of the present invention, the front plate portion and the rear plate portion are formed to be recessed toward the cavity portion, and when inserting the front end portion of the stopper plate into the cavity portion, The plate part and the back plate part are elastically displaced outward by the operator's fingertips or an appropriate jig, and after inserting the tip of the clasp plate to the back of the cavity, the outside of the front plate part and the back plate part The elastic displacement to is stopped. As a result, the front plate portion and the back plate portion try to elastically restore to the original shape recessed inward, and are pressed against the front portion and the back portion of the front end portion of the clasp plate. According to the present invention, the operation of attaching the guide cap to the front end portion of the clasp plate can be performed easily and accurately, and the guide cap does not fall off after the attachment.

  In the guide cap of the present invention, the joint edge portion that closes the front plate portion and the back plate portion on three sides is formed in a curved shape in the outer periphery of the cross section, so that the positional relationship between the stopper plate and the receiving portion is initially set. Even if there is a slight deviation from the normal position, the part of the side end surface of the metal receiving part is within the range where it contacts the curved outer peripheral surface of the coupling edge part, that is, the edge of the side end surface of the metal receiving part When the portion hits the curved outer peripheral contour surface, the sliding engagement between the front end portion of the stopper plate and the receiving portion is smoothly performed by being guided to the curved outer peripheral contour surface thereafter. .

  Since there are three connecting edges, the leading edge of the clasp plate and the metal receiving plate can be accurately guided both when the clasp plate rotates downward and when the clasp plate rotates upward. The sliding engagement with the part is made smoothly.

FIG. 1 is a front view of a stopper plate guide cap according to an embodiment of the present invention. FIG. 2 is a plan view of the guide cap of FIG. FIG. 3 is a right side view of the guide cap of FIG. 4 is a cross-sectional view taken along line AA in FIG. FIG. 5 is a front view of a door lock handle device in which the guide cap of FIG. 1 is attached to the distal end portion of the stopper plate. FIG. 6 is a plan view showing a positional relationship at the time of starting engagement of the guide cap and the metal receiving part.

  In the illustrated embodiment, the guide cap 1 is formed of a plastic material having excellent wear resistance, and the pair of front plate portion 2 and back plate portion 3 are closed by connecting edge portions 4, 5, 6 on three sides. The cavity portion 7 is formed by the front plate portion 2, the back plate portion 3, and the coupling edge portions 4, 5, and 6. The remaining side that is open is an insertion slot 8. The front plate portion 2 and the back plate portion 3 are recessed inward, and the deepest portion thereof is opposed to the middle portion of the cavity portion 7 at a narrow interval.

    The connecting edges 4, 5, and 6 on the three sides are continuous in series, and each cross-sectional shape is equivalent to an elliptical quarter, and the connecting edges 4, 5, and 6 are necessary and sufficient. It is formed into a thick solid shape. Therefore, by rotating the operation handle 13 pulled out from the main body case 12 of the lock handle device 11 for doors in the locking direction, the guide cap 1 at the distal end portion of the clasp plate 14 is attached to the receiving portion 9 on the cabinet main body side. When the contact is made, the curved outer peripheral contour surface 10 of the coupling edge portions 4, 5, 6 is deformed into a concave shape so that the guiding action is not lost, and the guide cap 1 serves as a guiding means for sliding engagement. Always works effectively.

DESCRIPTION OF SYMBOLS 1 Guide cap 2 Front plate part 3 Back plate part 4 Joining edge part 5 Joining edge part 6 Joining edge part 7 Cavity part 8 Insertion port 9 Receiving part 10 Curved outer peripheral surface 11 of joining edge part Lock handle apparatus 12 for doors Main body case 13 Operation handle 14 Clasp plate

Claims (1)

  The front plate portion and the back plate portion that face each other are closed by the coupling edge portion on three sides of the four sides to form a hollow portion that accommodates the front end portion of the clasp plate, and the remaining one side is opened. It is an insertion opening at the tip of the clasp plate, the connecting edge portion of the three sides is formed in a curved shape in the outer peripheral contour of the cross section, and the front plate portion and the back plate portion are recessed toward the cavity portion. A guide cap for the formed stopper plate.

Images