JPH0632635U - Preload device for door knob mounting device - Google Patents

Abstract

(57) [Summary] [Structure] This preload device is applied to a door knob attachment device that attaches a pair of door knobs 10 and 20 to the door 50 by sandwiching the door 50 with the round seat 11 and the attachment seat 21 as seat members. An annular pressing member 14 that rotates integrally with the mounting screw 13 has a plurality of radial elastic claws 14b. Every time the mounting screw 13 rotates by a predetermined angle, the elastic claw 14b of the annular pressing member 14 is fitted into and fitted into the fitting groove 15 of the round seat 11. [Effect] The clamping force on the door can be adjusted as desired. It is possible to prevent the aluminum door from being deformed, and it is possible to reliably hold the attached state of the door knob with a pressing force that does not deform it. It can prevent rattling of the door knob for a long period of time.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a preload device for a door knob mounting device that is used in a door knob mounting device that clamps a door by seat members provided in a pair of door knobs, and that adjusts the clamping force by the seat member.

[0002]

[Prior art]

 Conventionally, when attaching a pair of door knobs to a lock box embedded in a door, etc., a screw cylinder in which the mounting screw inserted into the round seat of one door knob is welded or riveted to the mounting seat of the other door knob to project. It is screwed into the body, and the door is sandwiched between the round seat and the mounting seat so that the door can be mounted and fixed.

[0003]

[Problems to be solved by the device]

 By the way, in the case of an aluminum door, if the mounting screw is excessively tightened, the door may be dented. For this reason, the mounting screw cannot be tightened much, but if it is used for a certain period without being tightened as much as this, rattling occurs between the door knob and the door, and this rattling causes There is a problem that parts are damaged and smooth key opening cannot be performed.

Therefore, an object of the present invention is to solve the above-mentioned technical problems, to easily adjust the gripping force by the seat member, and to prevent the door knob from rattling over a long period of time without causing deformation of the door during mounting. It is an object of the present invention to provide a preload device for a door knob attachment device that can prevent the occurrence of sticking.

[0005]

[Means for Solving the Problems]

 A preload device for a door knob mounting device according to the present invention for achieving the above object is used for a door knob mounting device for clamping a door by a seat member provided on each of a pair of door knobs. Is a preloading device for a door knob mounting device that adjusts the mounting screw, which is inserted into the screw insertion hole of one seat member and is screwed into the female screw groove provided on the other seat member side, and the shaft portion of this mounting screw. With a ring-shaped pressing member that is interposed between the head of the mounting screw and the peripheral edge of the screw insertion hole of the one seat member and that has a plurality of radially extending elastic claws evenly distributed around the circumference. It is characterized in that the one seat member is provided with a plurality of fitting grooves that are radially formed on the peripheral portion of the screw insertion hole and that respectively fit and engage the elastic claws of the annular pressing member.

[0006]

[Action]

 According to the above configuration, the annular pressing member having the elastic claws rotates as the mounting screw is rotated. At this time, every time the mounting screw is rotated by a predetermined angle, the elastic claw is fitted and engaged in the fitting groove of the seat member, so the clamping force by the seat member can be adjusted accurately while checking the tightening position of the mounting screw. can do. Therefore, it is possible to easily adjust the holding force to the extent that the aluminum door is not deformed. Further, since the door is elastically pressed by the seat member, it is possible to further suppress the deformation of the door when the door is made of aluminum.

[0007]

【Example】

 Embodiments will be described in detail below with reference to the accompanying drawings. FIG. 1 is a fragmentary perspective view of a door knob attachment device including a preload device according to an embodiment of the present invention. Referring to the figure, in this door knob mounting device, the door 50 is sandwiched between the round seat 11 and the mounting seat 21 as a pair of seat members, and the inner door knob 10 and the outer door knob 20 are fixed. The clamping force of the round seat 11 and the mounting seat 21 with respect to the door 50 is such that the mounting screw 13 inserted into the screw insertion hole 12 of the round seat 11 is attached to the screw tubular body 22 fixed to the mounting seat 21 side. It is adjusted depending on how tightly it is tightened. An annular pressing member 14 having a plurality of elastic claws 14b is interposed between the head 13a of the mounting screw 13 and the round seat 11, and the round seat 11 has an annular ring around the screw insertion hole 12. A plurality of fitting grooves 15 for respectively fitting and engaging the elastic claws 14b of the pressing member 14 are formed. The mounting screw 13, the annular pressing member 14, and the fitting groove 15 constitute a preload device A for adjusting the holding force with respect to the door 50.

Referring to FIG. 1 and FIG. 2, inside the lock box 40, a disc-shaped turning plate 42 for activating the latch 41 by turning is arranged. In the rotating plate 42, a central hole 43 for inserting the square core 23 of the door knob 20 for operating the dead bolt 45 in the center portion, and an arc-shaped elongated through hole 44 for inserting the auxiliary plate 30 described below in the circumferential direction. Has been drilled.

The auxiliary plate 30 is formed in an arc shape in section so that it can be mounted in the elongated through hole 44 formed in the arc shape of the rotating plate 42. As shown in FIG. 2, the auxiliary plate 30 is provided with a tongue piece 33 that is inserted into the elongated through hole 44 of the rotating plate 42. The tongue piece 33 is used to insert the interlocking plate 24 of the outer door knob 20. A pair is formed on both sides of the hole 32. Further, 31 is a stopper portion, which is formed slightly larger than the elongated through hole 44 of the rotary plate 42, and a projection portion formed on the outer side of the tip end of the stopper portion 31 and the tongue piece 33. The rotation plate 42 of the lock box 40 is sandwiched by 34 and the auxiliary plate 30 can be mounted in the hole 44. Referring to FIGS. 1, 4 and 5, the mounting screw 13 is 13a and a shaft portion 13b formed with a male screw. In a portion of the shaft portion 13b adjacent to the head portion 13a, a pair of plate-shaped outward protrusions 13c having a substantially triangular shape in a side view are formed at symmetrical positions with respect to the shaft portion 13b.

With reference to FIG. 6, the annular pressing member 14 includes an annular main body 14a and a plurality of radial elastic claws 14b (FIG. 6) extending circumferentially equidistantly on the outer periphery of the main body 14a. Reference) and engaging recesses 14c formed on the inner circumference of the main body 14a at equal circumferential intervals. With reference to FIG. 7, the elastic claw 14b is bent at a predetermined angle with respect to the main body 14a. The engaging recess 14c integrally rotates the mounting screw 13 and the annular pressing member 14 in a state of being engaged with the outward protrusion 13c of the mounting screw 13.

Referring to FIG. 8, a plurality of fitting grooves 15 for fitting and engaging the elastic claws 14 a of the annular pressing member 14 are radially formed around each screw insertion hole 12 of the round seat 11. Has been. Further, an annular recess 12a is formed on the inner peripheral edge of the screw insertion hole 12 to avoid buffering with the outward protrusion 13c of the mounting screw 13. With reference to FIGS. 1, 3 and 9, the mounting seat 21 is provided with a pair of elongated holes 25 at positions corresponding to the round seat 11. A screw projection 60 projects from each elongated hole 25. A male screw groove 62 is formed on the outer peripheral surface of the screw projection 60, and a screw cylinder 22 having a female screw groove 26 formed on the inner end side is screwed to be projected from the mounting seat 21. .

A female screw groove 27 for screwing the mounting screw 13 is formed inside the screw cylinder 22 in a portion excluding the female screw groove 26 on the one end side from the other side to the one end side. Further, the screw projection 60 has a large-diameter collar portion 63 integrally formed on the other end side where the male screw groove 62 is formed. A notch step portion 64 is formed in the flange portion 63 so as to be fitted into the elongated hole 25 of the mounting seat 21 and regulate the rotation of the screw projection 60 in the hole 25.

The screw projection 60 is inserted into the mounting seat 21 from the rear surface on the door knob 20 side toward the screw cylinder 22 side, and is formed so that the outer peripheral portion in which the male screw groove 62 is formed protrudes. Further, a through hole 61 is formed inside the screw protrusion 60 for allowing the tip of the screw portion of the mounting screw 13 inserted into the round seat 11 to escape.

An adjusting seat 70 is interposed between the mounting seat 21 and the screw cylinder 22. Into this adjusting seat 70, a screw projection 60 protruding from the long hole 25 of the mounting seat 21 is inserted, and a positioning hole 71 for positioning the screw cylinder 22 screwed into this screw projection is formed at a symmetrical position. There is. The positioning hole 71 is formed in such a manner that it gradually spirals away from the vicinity of the central portion of the adjusting seat 70 toward the outer periphery, and a tool such as a flat-blade screwdriver is inserted into the hole 72 to rotate the adjusting seat 70. By doing so, the screw protrusion 60 inserted into the positioning hole 71 can be moved within the elongated hole 25 of the mounting seat 21. The space between the screw cylinders 22 screwed into the screw projections 60 is finely adjusted so that the screw cylinders 22 can be inserted into the mounting holes 46 formed through the lock box 40.

Next, a method for attaching the door lock and the door knob will be described. First, the lock box 40 is fitted into the door body 50. Next, the auxiliary plate 30 is attached to the elongated through hole 44 of the rotating plate 42 of the lock box 40. Then, the screw cylinder 22 inserted into the lock seat 40 while inserting the interlocking plate 24 of the door knob 20 into the hole 32 of the auxiliary plate 30 attached to the elongated through hole 44 and attached to the attachment seat 21 is formed. It is inserted into the hole 46.

When attaching the screw cylinder 22 to the mounting seat 21, the screw projection 60 protruding from the long hole 25 of the mounting seat 21 is inserted into the positioning hole 71 of the adjusting seat 70, and the screw projection 60 is screwed into the screw cylinder. The body 22 is screwed. Then, the adjustment seat 70 is rotated to finely adjust the distance between the screw cylinders 22 so that the adjustment seat 70 can be inserted into the mounting hole 46 formed through the lock box 40.

Further, while the mounting screw 13 inserted into the round seat 11 is screwed into the female screw groove 27 of the screw cylinder 22, the door 50 is sandwiched between the round seat 11 and the mounting seat 21. At this time, the annular pressing member 14 having the elastic claws 14b rotates in accordance with the turning operation of the mounting screw 13, but the elastic claws 14b of the annular pressing member 14 rotate by a predetermined angle and the fitting groove of the round seat 11 is inserted. 15 is fitted and engaged, and the clamping force by the round seat 11 and the mounting seat 21 is adjusted as desired, and the mounting of the door knobs 10, 20 is completed.

According to this embodiment, the tightening position of the mounting screw 13 can be adjusted while confirming the engagement between the elastic claw 14b and the fitting groove 15, so that the clamping force by the round seat 11 and the mounting seat 21 is adjusted. Can be adjusted accurately. Therefore, even for the door 50 made of aluminum, it is possible to easily adjust the holding force to the extent that the deformation or the like does not occur. Moreover, since the door knobs 10 and 20 are mounted while the door 50 is elastically pressed by the round seat 21 and the mounting seat 21, even if the mounting screw 13 is slightly tightened too much, this tightening is too much. The stroke of the amount can be absorbed by the elastic deformation of the elastic claw 14b, and the aluminum door 50 is not deformed. Moreover, since the door claws 10 and 20 are held by the elastic repulsive force of the elastic claws 14b, the attached state of the door knobs 10 and 20 can be surely maintained even if the door knobs 10 and 20 are subjected to vibrations caused by opening and closing of the door 50, and the door knobs are long-term. It is possible to prevent the rattling of 10 and 20.

Further, as shown in FIG. 9, the tip of the shaft portion of the mounting screw 13 screwed into the screw cylinder body 22 can be escaped from the escape through hole 61 formed in the screw protrusion 60, and the thickness of the door 50 can be increased. The door 50 can be properly attached by appropriately responding to the difference. Further, since the auxiliary plate 30 is attached to the hole 44 of the rotating plate 42 of the lock box 40 and the interlocking plate 24 of the door knob 20 is inserted into the auxiliary plate 30, the interlocking plate 24 of the door knob 20 is attached to the lock box 40. Even if it does not match the hole 44 of the rotating plate 42, the auxiliary plate 30 that can be mounted in the hole 44 of the rotating plate 42 of the lock box 40 can be used to latch the lock box 40 with the door knobs 10, 20. The bolt 41 can be operated well.

Further, the long hole 25 of the mounting seat 21 and the adjusting seat 70 can finely adjust the distance between the screw cylinders 22 and can be inserted into the mounting hole 46 formed through the lock box 40. Therefore, even when it is necessary to replace the door lock due to a failure or the like, the lock box 40 fitted in the door 50 is left as it is and the door knob 10, the adjusting plate 70 and the like are used. 20 can be properly attached to the lock box 40, and only the door knobs 10 and 20 need to be replaced.

In this invention, the auxiliary plate 32 and the adjusting seat 70 are not provided, and the interlocking plate 24 is directly attached to the hole 44 of the rotating plate 42 of the lock box 40 to operate the latch 41. It can be implemented even if it is not possible to make fine adjustment between the screw cylinders 22. In addition, various design changes can be made as long as the annular pressing member 14 is provided with an elastic claw 14b on the inner peripheral side of the main body 14a without changing the gist of the present invention.

[0022]

[Effect of device]

 As described above, according to the preload device for mounting the door knob according to the present invention, the clamping force by the seat member can be easily and desirably adjusted, and therefore, even when the door is made of aluminum, The pressing force can be easily adjusted to the extent that the door is not deformed. Moreover, since the seat member elastically presses the door, it is possible to reliably hold the attached state of the door knob even with an aluminum door with a pressing force that does not cause the above deformation. It is possible to prevent rattling of the door knob for a long period of time.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a door knob attachment device including a preload device according to an embodiment of the present invention.

FIG. 2 is a perspective view of a rotating plate and an auxiliary plate.

FIG. 3 is a partially enlarged perspective view of a screw protrusion and a mounting seat.

FIG. 4 is a partially enlarged side view of a mounting screw.

5 is a sectional view taken along line VV of FIG.

FIG. 6 is a plan view of an annular pressing member.

FIG. 7 is a side view of an annular pressing member.

FIG. 8 is a plan view of a main part of a round seat.

FIG. 9 is a schematic plan view when the door knob is attached.

[Explanation of symbols]

 10, 20 Door Knob 11 Round Seat (Seat Member) 12 Screw Insertion Hole 13 Mounting Screw 14 Annular Pressing Member 14b Elastic Claw 15 Fitting Groove 21 Mounting Seat (Seat Member) 27 Female Thread Groove 50 Door

Claims (1)

[Scope of utility model registration request] 1. A preloading device for a door knob mounting device, which is used for a door knob mounting device for sandwiching a door by seat members respectively provided on a pair of door knobs, for adjusting a sandwiching force by a seat member, wherein one seat is provided. The mounting screw that is inserted into the screw insertion hole of the member and that is screwed into the female screw groove provided on the other seat member side, and the head of the mounting screw and one of the above seats with the shaft portion of this mounting screw inserted. A ring-shaped pressing member that is interposed between the peripheral portion of the screw insertion hole of the member and has a plurality of radially extending elastic claws evenly distributed around the circumference, and a radial portion of the one seat member that is peripheral to the peripheral portion of the screw insertion hole. A preloading device for a door knob mounting device, comprising: a plurality of fitting grooves that are formed and that respectively fit the elastic claws of the annular pressing member.