JPH0589743U - Lever handle lock - Google Patents

Abstract

(57) [Abstract] [Purpose] The handle shaft can be smoothly inserted into the hub hole, and the lever handle is fixed to the handle shaft by screwing in the tapping screw to prevent rattling of the latch hub with respect to the handle shaft. To do. [Structure] In a lever handle lock, a rectangular handle shaft 5 is formed by a first member 5'and a second member 5 "whose opposite surfaces are overlapped with each other, and a mounting hole 6 of a lever handle 3 is fitted into the handle shaft so that a lever A tapping screw 17 screwed in from the handle cuts both edges of the opening of the concave groove 15 on the overlapping surface of both members and pushes both members apart to stop rattling of the latch hub.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lever handle lock in which a handle shaft of a lever handle is fitted into a hub hole of a latch hub and a handle shaft mounting hole of a lever handle to fix the lever handle to an end portion of the handle shaft.

[0002]

[Prior art and its problems]

 In the conventional lever handle lock of this type, as shown in Japanese Utility Model Publication No. 62-24687, the handle shaft is composed of the first member and the second member, and the lever handle is provided in the gap formed between the facing portions of both members. While pushing in a wedge body such as a screw that is screwed into the portion, both the members are expanded and pressed against the inner wall surface of the hub hole of the latch hub and the inner wall surface of the handle mounting hole of the lever handle to press and fix them.

According to such a crimping and fixing method, only the both end portions of the first member and the second member are expanded, so that both members with respect to the inner wall of the hub hole are expanded by expanding the central portion penetrating the hub hole. The crimping force of is extremely weak.

Therefore, there is a problem that rattling occurs in the fitting portion between the hub hole and the square shaft, and the initial rotation of the lever handle is not smoothly transmitted to the latch hub.

There is also a problem that the lever handle may fall off the square shaft if the screw is loosened even a little.

In particular, when the handle shaft is composed of the first member and the second member, when the side surfaces of the first member and the second member are not aligned, the handle shaft is handled in the hub hole of the latch hub incorporated in the lock box. When inserting the shaft, there was a problem that the protruding side was caught due to the step difference of the side and it could not be inserted smoothly.

Therefore, an object of the present invention is to allow the handle shaft to be smoothly inserted into the hub hole of the latch hub, and to crimp and fix the square shaft not only to the inner wall surface of the handle mounting hole of the lever handle but also to the inner wall surface of the hub hole of the latch hub. It is possible to provide a lever handle lock that can be used to prevent the screws from loosening.

[0008]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention inserts the handle shaft of the lever handle into the hub hole of the ratch hub and the handle shaft mounting hole of the lever handle, and attaches the lever handle to the end of the handle shaft. In the fixed lever handle lock, the handle shaft is composed of a first member and a second member each having a quadrangular cross-section of the shaft with the facing surfaces overlapped with each other, and the handle surface of the first member and the second member overlaps each other. A protrusion and a recess to be fitted to one side edge are provided, and the width of the opening is smaller than the inner width at the other side edge of the overlapping surface of the first member and the second member, and the bottom is V-shaped. -Like recessed groove is provided, and the opening edge of the recessed groove is cut by a tapping screw screwed from the outside of the lever handle, and the bottom of the recessed groove is pressed by the tapping screw to exert a pressing force on the hub hole. When Said first and second members in the Tsukeana is obtained by employing the crimped configuration.

[0009]

[Action]

 Insert the lever handle mounting hole to the outside of the other end of the handle shaft after inserting the handle shaft that has the lever handle attached to one end in the hub hole of the latch hub.

Next, while screwing the tapping screw, the side edge of the opening of the concave groove is cut by the tapping screw, and the tip of the tapping screw is pressed to the lowest position of the bottom surface of the concave groove to form the handle shaft. Also, since the second member is expanded, the outer peripheral surfaces of the first member and the second member are crimped to the hub hole and the mounting hole.

[0011]

Embodiment An embodiment according to the present invention will be described below with reference to the accompanying drawings.

In FIGS. 1 and 2, 1 is a lock case, 2 is a front plate, 3 is an indoor lever handle, and 4 is an outdoor lever handle. Mounting holes 6 into which both ends of the rectangular handle shaft 5 are inserted are provided.

Reference numeral 7 denotes a latch bolt. The latch bolt 7 is connected to the latch bolt shaft 8 in the lock case 1, and the elastic force of a spring 9 constantly urges the latch bolt 7 in the protruding direction. ing.

Reference numeral 10 denotes a latch hub which is positioned below the latch bolt shaft 8 and is rotatably assembled in the lock case 1. A fork piece 11 projecting from a part of the outer periphery of the latch hub 10 is attached to the latch bolt shaft 8. And the latch hub 10 is rotated by rotating the handle shaft 5 penetrating the hub hole 12 of the latch hub 10, and this rotary movement is converted into a reciprocating linear motion of the latch bolt shaft 8. Put the latch bolt 7 in and out.

The mounting holes 6 and the hub hole 12 of the lever handles 3 and 4 have the same diameter.

As shown in FIGS. 3 and 7, the handle shaft 5 is composed of a first member 5 ′ and a second member 5 ″ each having a quadrangular cross-section of the shaft with opposing surfaces superposed on each other. A protrusion 13 and a recess 14 to be fitted are provided on one side edge of the overlapping surface of the member 5 ′ and the second member 5 ″.

Although the projections 13 and the recesses 14 are provided with protrusions and grooves along the entire length in the longitudinal direction of the first member 5 ′ and the second member 5 ″ in the illustrated case, they may be provided in a scattered manner. ..

Further, on the other side edge of the overlapping surface of the first member 5 ′ and the second member 5 ″, a concave groove in which the width of the opening is smaller than the width of the inner portion and the bottom is V-shaped 15 are provided.

According to the above-described structure, the handle shaft 5 having the outdoor lever handle 4 attached to one end thereof is inserted into the hub hole 12 of the latch hub 10 in advance, and then the other handle shaft 5 is inserted as shown in FIG. Fit the mounting hole 6 of the indoor lever handle 3 on the outer side of one end.

Next, when the tapping screw 17 screwed into the screw hole 16 of the indoor lever handle 3 is screwed in, the tapping screw 17 is used to thread both side edges of the opening of the recessed groove 15, and the recessed groove 15 When the tip of the tapping screw 17 comes into contact with the lowest portion of the bottom (the overlapping surface of the first member 5'and the second member 5 "), the handle shaft 5 that forms the handle shaft 5 as shown in Figs. Since the first member 5 ′ and the second member 5 ″ are pushed apart, the first member 5 ′ and the second member 5 ″ are pressed into the mounting hole 6 and the hub hole 12, and the latch hub 10 and the lever handle 3 against the handle shaft 5 are pushed. The rattling stops and the lever handle 3 is fixed to the handle shaft 5.

The outdoor lever handle 4 may be attached to the handle shaft 5 by using a tapping pin instead of using a tapping screw as in the case of the indoor lever handle 3.

Further, as shown in FIGS. 7 and 8, the tip of the tapping screw 17 is used to widen the overlapping surface of the first member 5 ′ and the second member 5 ″. Thus, when the groove strip 18 is provided from the bottom surface of the recessed groove 15 toward the overlapping surface of the first member 5 ′ and the second member 5 ″, the tip of the tapping screw 17 is inserted into the groove strip 18 and cut. First, the first member 5'and the second member 5 "are pushed apart from each other.

[0023]

【effect】

 As described above, according to the lever handle lock according to the present invention, the tapping screws that cut the both side edges of the opening of the recessed groove push and spread the first member and the second member to rattle the latch hub and the mounting hole with respect to the handle shaft. Since the lever is stopped, even if the tapping screw is loosened, it is possible to prevent the lever handle from coming off from the handle shaft due to the notch in the opening edge of the groove.

Further, since the projection and the recess provided on the overlapping surface of the first member and the second member are fitted together, the movement of both members in the circumferential direction is stopped. Therefore, when inserting the handle shaft into the hub hole, it is possible to eliminate the inconvenience that the protruding side is caught due to the step difference of the sides.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view of a lever handle lock according to the present invention.

FIG. 2 is a transverse plan view of the same as above.

FIG. 3 is an exploded perspective view of a handle shaft

FIG. 4 is a sectional view taken along line XX in FIG.

FIG. 5 is a vertical sectional front view in which a mounting hole is fitted in a handle shaft.

FIG. 6 is a sectional view taken along the line Y-Y in FIG.

FIG. 7 is an exploded perspective view of another embodiment of the handle shaft.

FIG. 8 is a vertical sectional front view showing the attachment of the above handle.

[Explanation of symbols]

 1 Lock Case 2 Front Plate 3, 4 Lever Handle 5 Handle Shaft 5'First Member 5 '' Second Member 6 Mounting Hole 7 Latch Bolt 8 Latch Bolt Shaft 9 Spring 10 Latch Hub 11 Bifurcated 12 Hub Hole 13 Projection 14 Recess 15 Groove 16 Screw hole 17 Tapping screw

Claims (1)

[Scope of utility model registration request] 1. A lever handle lock in which a handle shaft of a lever handle is fitted and inserted into a hub hole of a latch hub and a handle shaft mounting hole of a lever handle, and the lever handle is fixed to an end portion of the handle shaft. The shaft is composed of a first member and a second member each having a quadrangular cross-section of the shaft in which opposing surfaces are overlapped with each other, and a projection and a recess fitted to one side edge of the overlapping surface of the first member and the second member. Is provided, a width of the opening is smaller than the width of the inner side at the other side edge of the overlapping surface of the first member and the second member, and a V-shaped concave groove is provided at the bottom. The opening edge of the groove is cut by a tapping screw that is screwed in from the outside, and the pressing force at the tip of the tapping screw is applied to the bottom of the groove so that the hub member and the mounting hole have the first member and the second member. The pressure A lever handle lock characterized by being fixed and worn.