JPH0119735Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention relates to the mounting structure of a doorknob, and allows the interval between the mounting screw holes for inserting the doorknob mounting screw to be arbitrarily varied, and the mounting is simple and reliable. I'm trying to get what I can.

<Prior Art> Conventionally, as a door lock for locking a door, etc., a doorknob type is widely used, in which a lockbox is attached to the door body and the door can be locked using a push button or a key at the front and back of the lockbox. By the way, in the case of such a doorknob type door lock, the work of fixing the doorknob to the lockbox is carried out as follows.

That is, one door knob is provided with a mounting screw hole into which a mounting screw is inserted, and the other door knob is provided with a mounting screw hole into which a mounting screw is inserted.
A threaded barrel having one end threaded for the mounting screw is provided, and the lockbox is provided with a mounting hole into which the threaded barrel and the mounting screw are inserted. Then, the doorknobs are fixed to the lockbox by inserting the threaded cylinder into the mounting hole of the lockbox and then screwing the mounting screw into the threaded cylinder.

<Problems to be solved by the invention> However, since the spacing between the mounting holes of the lockbox and the spacing between the mounting screw holes of the doorknob are not flexible, if the lockbox breaks down,
If you want to replace only one or both doorknobs with ones from another manufacturer, you will not be able to install it unless the spacing between the mounting screw holes on both doorknobs matches the spacing between the mounting holes on the lock box. This was an inconvenience. For this reason, the lock box or doorknob, which normally does not need to be replaced, has to be replaced at the same time, which is wasteful.

As a countermeasure against this problem, a doorknob has been proposed in which both the mounting screw and the screw cylinder for the mounting screw are movable and are fixed to the lockbox. There was a drawback that the operation for inserting the threaded cylinder into the hole was time-consuming.

<Means for solving the problem> This invention was able to solve the conventional problems as mentioned above, and its structure is as follows.
The first and second door knobs facing the lock box are assembled by screwing together a pair of mounting screws inserted into the circular seat of the first door knob and a pair of threaded cylinders protruding from the mounting seat of the second door knob. In the mounting structure for the doorknob to be fixed to, the round seat is formed with mounting screw holes at symmetrical positions along the diameter direction, through which the mounting screws can be inserted and the mounting interval of the mounting screws can be adjusted. The mounting seat has an elongated hole drilled on the side facing the round seat to allow the threaded cylinder to slide in the diametrical direction, and the back side of the elongated hole has the head of the threaded cylinder. An engagement groove is formed that can be engaged to prevent rotation of the head, and further a pair of positioning holes for inserting the threaded cylinder body between the mounting seat of the second door knob and the lock box. The adjustment seat is provided with symmetrical positions, and the positioning hole is formed so as to gradually move away in a spiral shape from near the center of the adjustment seat toward the outer periphery.

<Example> Next, a doorknob mounting structure according to the invention will be illustrated below with reference to the drawings.

FIG. 1 is an exploded perspective view of the doorknob. In the same figure, 41 is a lockbox attached to the door body 51, which is similar to the conventionally used lockbox. The first doorknob 10 and the second doorknob 20 are opposed to each other.

The circular seat 11 of the first door knob 10 has three sets of mounting screw holes 12, 13, 14 arranged at symmetrical positions along the diameter direction and having different installation intervals for the mounting screws.
are mutually spaced based on the center hole 15 of the round seat 11.
They are formed through the round seat 11 with their positions shifted by 60 degrees. These mounting screw holes 12, 13, 14
The diameter is slightly larger than the outer diameter of the mounting screw 16 for fixing the round seat 11 to the mounting hole 42 of the lock box 41. Therefore, it becomes possible to adapt one circular seat 11 to three types of mounting holes 42 having different spacings.

Reference numeral 21 denotes a mounting seat for the second door knob 20, and on the surface side of the mounting seat 21 facing the round seat 11, there is a pair of engagement grooves in which a long hole 22 for inserting the threaded cylinder body 26 is bored. 25 is formed to have a height as described later (see FIGS. 1 and 2).

The elongated hole 22 of the engagement groove 25 is formed so that its short diameter is slightly larger than the outer diameter of the threaded cylinder body 26, and the elongated hole 22 of the engagement groove 25 is formed along the longitudinal direction of the engagement groove 25. The long diameter of the mounting seat 21 is smaller than the radius of the mounting seat 21.

One end 26b of the threaded cylinder body 26 on the opposite side from the head 26a is threaded for the mounting screw 16, and the head 26a has an engaging groove 25 as shown in FIG. is engaged within. Further, the shape of the head 26a is formed into a rectangular shape along the width direction of the engagement groove 25 (see FIG. 3).

The engagement groove 25 extends from the mounting seat 21 to the threaded cylinder body 2.
The shape of the engagement groove 25 is as follows:
It is formed into a rectangular shape along the diameter direction of the mounting seat 21 (see FIGS. 1 and 3).

Therefore, the threaded cylinder 26 is connected to the long hole 22 of the engagement groove 25.
Since the head 26a of the screw cylinder body 26 is prevented from rotating within the engagement groove 25, as a result, the screw cylinder body 2
The rotation of 6 itself is also prevented.

Reference numeral 31 denotes a circular adjustment seat with a predetermined thickness, and the adjustment seat 31 is inserted between the mounting seat 21 of the second door knob 20 and the lock box 41. Further, the outer diameter of the adjustment seat 31 is approximately the same size as the mounting seat 21 of the second door knob 20, and the center portion 35 is formed to have approximately the same size as the center hole 15 of the round seat 11 of the first door knob 10. There is. Furthermore, this adjustment seat 3
1, a pair of positioning holes 36 for the threaded cylindrical body 26 are formed at symmetrical positions, the holes 36 spirally moving away from the vicinity of the center portion 35 toward the outer periphery. After inserting the threaded cylinder 26 of the mounting seat 21 into this positioning hole 36, the threaded cylinder 26 is inserted into the mounting hole 42 formed through the lock box 41, and the threaded cylinder 26 is screwed into the mounting screw 16. Adjustment seat 3
1 is fixed to the lock box 41 together with the round seat 11.

The pair of positioning holes 36 have a width dimension of
It is formed to be slightly larger than the outer diameter of the threaded cylinder 26, and the length of the positioning hole 36 is such that when the threaded cylinder 26 slides in the diametrical direction within the long hole 22 of the mounting seat 21, It is formed to such an extent that it can slide smoothly even within the positioning hole 36. Furthermore, the positioning hole 36 is such that the relative movement of the two threaded cylinders 26 from the vicinity of the center 35 is at the gentlest possible angle within the positioning hole 36, and they maintain equal distances from each other from the center. It is designed so that it can be carried out while

Therefore, among the three sets of mounting screw holes 12, 13, and 14 drilled in the round seat 11, the mounting screws 16 are installed in the mounting screw hole 12 with the minimum installation interval, and in the installation screw hole 14 with the maximum installation interval. Both mounting screw holes 1
Half of the difference between the distances between the holes 2 and 14 is approximately equal to the long diameter of the long hole 22 of the engagement groove 25 provided in the mounting seat 21. Further, the minimum and maximum distances between the positioning holes 36 of the adjustment seat 31 and the center portion 35 are as follows:
It is approximately equal to half of the difference in the spacing between the mounting screw holes 12 and 14.

Next, the case of using the product of the present invention constructed as described above will be explained.

First, the positioning hole 36 of the adjustment seat 31 is inserted into the threaded cylinder 26 of the mounting seat 21 of the second door knob 20, and the threaded cylinder 26 is inserted into the mounting hole 42 of the lock box 41. In this case, since the threaded cylinder body 26 can slide in the diametrical direction within the elongated hole 22 of the engagement groove 25, the threaded cylinder body 26 can be smoothly aligned with the mounting hole 42 of the lock box 41. Further, the positioning hole 36 of the adjustment seat 31 is formed so as to gradually move away from each other in a spiral shape.
By rotating the two threaded cylinders 26 by the same length, the positions of the two threaded cylinders 26 in the mounting holes 42 can be determined simultaneously and easily.

Next, among the mounting screw holes 12, 13, 14 drilled in the round seat 11 of the first door knob 10, the lock box 4
Insert the mounting screws 16 into a set of mounting screw holes 12, for example, which are spaced at the same distance as the mounting holes 42 of the lock box 41.
The round seat 11 is fixed by screwing the mounting screw 16 into the threaded cylinder 6 in the mounting hole 42.

Further, the head 26a of the screw cylinder body 26 is connected to the engagement groove 25.
Since rotation within the threaded cylinder body 26 is restricted,
Rotation of the mounting screw 16 is prevented, and the mounting screw 16 can be easily screwed into the threaded cylinder 26 without having to take the trouble of fixing the threaded cylinder 26.

In addition, in the above embodiment, three sets of mounting screw holes 1 are provided in the round seat 11 with different mounting intervals between the mounting screws.
2, 13, 14, but instead of multiple sets of mounting screw holes 12, 13, 14, as shown in FIG. A pair of elongated holes 17 may be formed through the hole.

Further, in the above embodiment, the adjustment seat 31 is interposed between the mounting seat 21 of the second door knob 20 and the lock box 41, and the adjustment seat 31 is rotated by a distance corresponding to the positioning hole 36. Therefore, the mounting seat 21
We decided to determine the position of the threaded cylinder body 26 of the lock box 41 and the mounting hole 42 of the lock box 41, but this position determination can be made more easily by using the mounting seat 21 and adjustment seat 31 having the following configuration. This can be done more easily and reliably.

That is, when rotating the adjustment seat 31 in which the positioning hole 36 is drilled and attaching the second door knob 20 to the replacement lock box 41, the distance between the mounting holes 42' in the lock box 41' before replacement is (Now, this
Let it be l ₁ . ) and the distance between the mounting holes 42 in the replacement lock box 41 (this is now referred to as l ₂ ) (l ₁ −l ₂ or l ₂ −l ₁ ) is the difference between the adjustment seat 31 The rotation distance scale plate 28 provided on the mounting seat 21 determines the rotation distance.
and an indication window 38 for the scale plate 28 provided on the adjustment seat 31 as shown in FIG. 5. A mark 38a for reading the scale is marked on the indication window 38 of the adjustment seat 31.

As a result, the operator can check the lock box 41' before and after replacement.
Measure the distance between the mounting holes 42' and 42 in 41,
Then, the rotation distance of the adjusting seat 31 corresponding to the distance between the mounting holes 42' and 42 is determined by the scale plate 2 of the mounting seat 21.
Start with the number 8, and then align the mark 38a of the indication window 38 of the adjustment seat 31 to the position of this number to determine the respective positions of the mounting seat 21, the adjustment seat 31, and the replacement lock box 41. It can be done almost simultaneously and easily.

Further, in the above embodiment, the engagement groove 25 is connected to the mounting seat 2.
Although it was decided to form it protruding from 1, the mounting seat 2
1 itself, an engagement groove 25 is provided inside the mounting seat 21, and a long hole 22 is formed on the surface of the mounting seat 21.
A similar effect can be obtained by forming a .

Further, the rotation of the threaded cylinder 26 was prevented by a combination of the engagement groove 25 and the head 26a of the threaded cylinder 26 that is engaged in the engagement groove 25; By making the shape of the threaded cylinder 26 that slides inside the long hole 22 of the matching groove 25 square, and by making the shape of the long hole 22 conform to the square shape,
Rotation of the threaded cylinder 26 can be prevented.

<Effects of the invention> According to the invention configured as described above, the mounting screw 16 is attached to the round seat 11 of the first door knob 10 of the first and second door knobs 10 and 20 facing the lock box 41. Since a plurality of sets of mounting screw holes 12, 13, 14 with different intervals are formed at symmetrical positions along the diameter direction, the mounting screws 16 are arranged in a plurality of sets that match the mounting holes 42 of the lock box 41 to be replaced. It is possible to select any one of the sets of mounting screw holes 12, 13, and 14 for mounting.

In addition, the mounting seat 21 of the second door knob 20 has
Since the engagement groove 25 having the elongated hole 22 is formed, the threaded cylindrical body 26 can smoothly slide within the elongated hole 22.
rotation is prevented.

Furthermore, by using the adjustment seat 31, the position of the threaded cylinder 26 relative to the mounting hole 42 of the lock box 41 can be determined easily and reliably.

Therefore, this invention is suitable for easily replacing a pair of doorknobs and lockboxes and eliminating unnecessary costs, and is suitable for installing doorknobs that are widely used as door locks. It has excellent effects.

[Brief explanation of the drawing]

The figure shows an embodiment of the doorknob mounting structure according to this invention, and FIG. 1 is an exploded perspective view;
Figure 2 is a partially fragmented sectional view of the doorknob fixed to the lockbox, Figure 3 is a sectional view taken along the - line in Figure 2, Figure 4 is a perspective view of the round seat in a modified example, and Figure 4 is a perspective view of the round seat in a modified example. FIG. 5 is an exploded perspective view showing the vicinity of the second door knob in another modification. 10...First doorknob, 11...Maruza, 1
2, 13, 14...Mounting screw hole, 20...Second door knob, 21...Mounting seat, 22...Long hole, 26
...Screw cylinder body, 31...Adjustment seat, 36...Positioning hole.

Claims (1)

[Claims for Utility Model Registration] 1. The first and second door knobs facing the lock box include a pair of mounting screws to be inserted into the round seat of the first door knob, and a pair of screw cylinders protruding from the mounting seat of the second door knob. In the mounting structure of the doorknob that is fixed to the lock box by screwing with the body, the round seat has a mounting screw that can be inserted at symmetrical positions along the diameter direction and the mounting interval of the mounting screws can be adjusted. A screw hole is formed in the above mounting seat.
A long hole is bored on the side facing the round seat to allow the screw cylinder to slide in the diametrical direction, and the head of the screw cylinder is engaged with the back side of the long hole.
An engagement groove capable of preventing rotation of the head is formed, and a pair of positioning holes into which the threaded cylinder is inserted are arranged symmetrically between the mounting seat of the second door knob and the lock box. 1. A doorknob mounting structure, characterized in that the adjustment seat is provided with an adjustment seat, and the positioning hole is formed so as to gradually move away from the center of the adjustment seat in a spiral shape toward the outer periphery. 2. The doorknob mounting structure according to claim 1, wherein the mounting screw hole of the round seat comprises a plurality of sets of holes with different mounting screw mounting intervals. 3. The doorknob mounting structure according to claim 1 of the above-mentioned utility model registration claim, in which the mounting screw hole of the round seat comprises a pair of long through holes.