KR200329230Y1 - Loose Shaft for Transmitting Driving force to Dead Bolt for Use in Door Lock System - Google Patents

Abstract

The present invention relates to a flow rotating shaft for transmitting the dead bolt driving force of the door lock mortis, and more specifically, in the rotating shaft for transmitting the dead bolt driving force of the door lock mortis, the integral rotating shaft is separated into an upper rotating shaft and a lower rotating shaft inserted into the upper rotating shaft. The present invention relates to a flow rotating shaft for transmitting dead bolt driving force of the door lock mortis, thereby enabling the lower rotating shaft to flow in relation to the upper rotating shaft.

The present invention is a rotation shaft for transmitting the dead bolt driving force of the door lock mortis, the upper rotating shaft coupled to the vertical bevel gear 154 receives the driving force from the horizontal bevel gear 152 of the drive shaft of the drive motor 150; And a lower rotating shaft coupled to the upper rotating shaft and transmitting a driving force to the pivoting body 106 of the latch assembly 100, wherein the dead bolt driving force of the door lock mortis is provided.

Description

Loose Shaft for Transmitting Driving force to Dead Bolt for Use in Door Lock System}

The present invention relates to a flow rotating shaft for transmitting the dead bolt driving force of the door lock mortis, and more specifically, in the rotating shaft for transmitting the dead bolt driving force of the door lock mortis, the integral rotating shaft is separated into an upper rotating shaft and a lower rotating shaft inserted into the upper rotating shaft. The present invention relates to a flow rotating shaft for transmitting dead bolt driving force of the door lock mortis, thereby enabling the lower rotating shaft to flow in relation to the upper rotating shaft.

In the conventional door lock device, an integrated rotary shaft has been used to transmit the driving force of the drive motor to the rotating body for advancing and retreating the dead bolt.

Figure 1a is a view showing the internal configuration of the latch assembly of the conventional door lock device, Figure 1b is a side view of the conventional door lock device.

1A and 1B relate to an automatic door locking device disclosed in Utility Model Registration Application No. 20-2000-0034590 by the applicant of the Utility Model Registration Application, and automatically drives the dead bolt 102 by the drive motor 150. The configuration of the power transmission device and the latch assembly 100 for forward and backward.

The latch assembly 100 includes a dead bolt 102 and a latch bolt 104 as inserted into the door.

The dead bolt 102 is moved forward and backward by the drive lever 112 coupled to the pivot 106. In more detail, as the rotation body 106 rotates, the driving lever 112 operates the unlocking drive 110 back and forth, and the dead bolt 102 attached to the unlocking drive 112 is moved forward and backward.

Meanwhile, the rotating body 106 rotates by receiving a driving force from the integrated rotating shaft 156, and the rotating body 106 includes a rotating shaft inserting portion 108 into which the integrated rotating shaft 156 is inserted.

Referring to Figure 1b describes the locking and unlocking mechanism of the dead bolt 102 as follows.

The latch assembly 100 is inserted into the door 120, an inner operation unit 140 is provided inside the door 120, and an outer operation unit 140 is provided outside the door 120. When the door 120 is to be opened from the outside, a key is input to the outer operation unit 130, and if the key input is justified, the driving motor 150 is provided on a circuit board (not shown) provided inside the inner operation unit 140. ).

The drive motor 150 rotates the horizontal bevel gear 152 connected to the motor shaft, and the vertical bevel gear 154 meshed with the horizontal bevel gear 152 also rotates accordingly. Since the vertical bevel gear 154 is coupled with the integral rotating shaft 156, the integral rotating shaft 156 also rotates in accordance with the rotation of the vertical bevel gear 154, and the rotating body 106 according to the rotation of the integral rotating shaft 156. Rotate to the right in FIG. 1A to release dead bolt 102.

After the dead bolt 102 is released, the user can rotate the outer handle 132 to release the latch bolt 104 and open the door 120.

On the other hand, in order to rule the dead bolt 102, the user uses a dead bolt locking button (not shown) provided on the inner operation unit 140, or a key input from the outer operation unit 130 or the door 120 Using a sensor to detect the closing of the dead bolt 102 to transmit a signal to the circuit board (not shown). The circuit board protrudes the dead bolt 102 by driving in the opposite direction as when the driving motor 150 is released.

As described above, in driving the dead bolt 102 back and forth, the driving force is transmitted to the rotating body 106 by the integrated rotation shaft 156. One end of the integrated rotary shaft 156 is provided with a vertical bevel gear 154 to receive the driving force from the horizontal bevel gear 152 attached to the drive shaft of the drive motor 150 and the other end of the integrated rotary shaft 156 is a rotating body 106 It is inserted into the rotary shaft insert 108 of.

The conventional integrated rotary shaft 156 is easy to transfer the driving force, but has the following problems.

The inner operation part 140 including the drive motor 150 is attached to the inside of the door 120, and the latch assembly 100 including the rotating body 106 is received at the side of the door 120, so that the inner operation part is provided. The center of rotation of the integrated rotary shaft 156 may not coincide with the center of the rotary shaft insert 108 provided in the rotating body 106 according to the condition that the 140 and the latch assembly 100 are mounted to the door 120. have.

As a result, the integrated rotary shaft 156 that transmits the driving force may be assembled in a stressed state. If the integrated rotary shaft 156 is assembled in a stressed state without being accurately positioned on the rotary axis, a problem may be exerted on the driving motor 150.

In addition, a stress concentration phenomenon occurs in the integrated rotary shaft 156 that is repeatedly rotated in a stressed state, the integrated rotary shaft 156 easily breaks, and a lifespan is shortened. In particular, when the integrated rotary shaft 156 is damaged, since the dead bolt 102 can not be released from the outside, it is necessary to use means for destroying the door 120 to enter the home or office. do.

In order to solve the above problems, the present invention is to provide a flow rotating shaft separated into an upper rotary shaft and a lower rotary shaft instead of the integrated rotary shaft used in the conventional drive force transmission. In addition, the present invention provides a spring structure for supporting the lower rotary shaft to insert the lower rotary shaft into the upper rotary shaft to enable the flow of the lower rotary shaft when the driving force is transmitted, and to match the rotary shaft core of the lower rotary shaft with the rotary shaft core of the upper rotary shaft. The purpose.

1A is a view illustrating an internal configuration of a latch assembly of a conventional door lock device;

Figure 1b is a side view of a conventional door lock,

2 is an exploded perspective view of a rotating shaft according to a preferred embodiment of the present invention,

3 is a cross-sectional view and a left side view of the upper rotating shaft in the flow rotating shaft according to the preferred embodiment of the present invention,

4 is a view showing a state in which the lower rotating shaft and the support spring and the fixing stopper and the vertical bevel gear are coupled to the upper rotating shaft in the flow rotating shaft according to the preferred embodiment of the present invention;

5 is a cross-sectional view and a side view of the upper rotating shaft in the flow rotating shaft according to another embodiment of the present invention,

Figure 6a is a view showing the plane and the side of the leaf spring inserted into the upper rotary shaft in the flow rotary shaft according to another embodiment of the present invention,

Figure 6b is a view showing a leaf spring and a leaf spring combination inserted into the upper rotary shaft in the flow rotary shaft according to another embodiment of the present invention,

7 is a flow axis of rotation in accordance with another preferred embodiment of the present invention, a view showing the lower axis of rotation,

8 is a view showing a coupled state of the flow rotating shaft according to another embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

100 latch assembly 102 dead bolt

104: latch bolt 106: rotating body

108: rotation shaft insertion unit 110: unlocking drive unit

112: driving lever 120: door

130: outer operation portion 132: outer handle

140: inner operation portion 142: inner handle

150: drive motor 152: horizontal bevel gear

154: vertical bevel gear 156: integral rotating shaft

202, 203: upper rotating shaft 204, 205: lower rotating shaft

206: driving force transmission unit 208: support spring

210: fixed stopper 212: cross projection

302: cross projection accommodating part 502: leaf spring fixing part

602: Leaf Spring

In order to achieve the above object, the present invention provides a vertical bevel gear 154 that receives a driving force from a horizontal bevel gear 152 of a drive shaft of a drive motor 150 in a rotation shaft for transmitting a dead bolt driving force of a door lock mortis. Upper rotary shafts 202 and 203 coupled; And lower rotating shafts 204 and 205 coupled to the upper rotating shafts 202 and 203 to transmit driving force to the pivoting body 106 of the latch assembly 100. To provide the flow axis of rotation.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related known configuration or function may obscure the subject matter of the present invention, the detailed description thereof will be omitted.

2 is an exploded perspective view of a flow rotating shaft according to a preferred embodiment of the present invention, Figure 3 is a view showing a cross section and the left side of the upper rotating shaft in the flow rotating shaft according to a preferred embodiment of the present invention.

The flow rotating shaft according to the present invention is formed by being separated into the upper rotating shaft 202 and the lower rotating shaft 204, for fixing the lower rotating shaft 204 to the upper rotating shaft 202 and to enable the flow of the lower rotating shaft 204 A support spring 208 and a fixed stopper 210.

Referring to FIG. 3, the driving force transmission part through portion 306 is provided inside the upper rotation shaft 204 to allow the driving force transmission portion 206 of the lower rotation shaft 204 to pass therethrough. As shown in FIG. 3, the driving force transmission part through part 306 is configured to have a rectangular shape according to the cross-sectional shape of the lower rotation shaft 204. It is not limited. That is, the shape of the driving force transmission unit through portion 306 may be configured as a polygon, such as a triangle, a quadrangle, or the like as a method for easily transmitting the driving force of the upper rotating shaft 202 to the lower rotating shaft 204.

The upper portion of the upper rotation shaft 202 is provided with a fixed stopper receiving portion 304 so that the fixed stopper 210 may be coupled to the fixed stopper receiving portion 304 so as to be fixed to the upper rotating shaft 202.

Referring to Figure 2 will be described the lower rotating shaft 204 and the fixed stopper 210 and the like.

The distal end of the driving force transmission unit 206 is coupled to the rotary shaft insert 108 of FIG. 1A to transmit the driving force to the pivot 106. The driving force transmission unit 206 is formed in a rectangular shape so that the driving force transmission unit 206 can also be rotated when the upper rotation shaft 202 is rotated.

A locking jaw 214 and a male protrusion 216 are provided at an upper portion of the lower rotation shaft 204, and a cross-shaped protrusion 212 is formed at a lower portion of the locking jaw 214. The cross protrusion 212 is accommodated in the cross protrusion receiving portion 302 provided in the upper rotating shaft 202, and the locking jaw 214 is formed larger than the size of the driving force transmission portion through-hole 306, the lower rotating shaft 204 Passing out of the upper rotating shaft 202 is prevented.

The fixed stopper 210 is fixed to the fixed stopper receiving portion 304 of the upper rotating shaft 202, the material of the fixed stopper 210 is preferably made of rubber or synthetic resin to enable contraction, expansion, but not necessarily It is not limited.

The bottom of the fixing stopper 210 is provided with a spring coupling portion 218 to be coupled to the support spring 208. The support spring 208 holds the lower axis of rotation 204 so that the lower axis of rotation 204 coincides with the axis of rotation. In addition, the support spring 208 serves to return the lower rotating shaft 204 to the rotation axis when the lower rotating shaft 204 flows as described below.

The coupling structure and operation of the lower rotating shaft 204 and the support spring 208 and the fixing stopper 210 will be described again as follows.

The male protrusion 216 provided on the upper portion of the lower rotating shaft 204 is received into the support spring 208 and the support spring 208 is engaged with the spring coupling part 218 of the fixing stopper 210, thereby fixing the stopper ( When the 210 is coupled to the fixed stopper receiving portion 304 of the upper rotary shaft 202, the support spring 208 is to support the lower rotary shaft 204.

On the other hand, the fixed stopper 210 is fixed to the fixed stopper accommodating portion 304 is formed with a fixed elastic stopper 210 and a rubber or synthetic resin material that can be deformed to have a fixed stopper 210 fixed stopper 210 It is made by fitting to the part 304.

However, the method of fixing the fixed stopper 210 to the fixed stopper accommodating portion 304 in the practice of the present invention is not limited to the above configuration, in some cases the lower end of the fixed stopper 210 and the fixed stopper accommodating A thread may be formed in the portion 304 to couple the fixed stopper 210 to the fixed stopper receiving portion 304.

In the case where the lower end of the fixed stopper 210 and the fixed stopper accommodating portion 304 are coupled to each other to form a screw, the vertical cross-sectional shape of the lower end of the fixed stopper 210 and the fixed stopper accommodating portion 304 on the axis of rotation is circular. Should be.

4 is a view showing a state in which the lower rotating shaft and the support spring and the fixing stopper and the vertical bevel gear is coupled to the upper rotating shaft in the flow rotating shaft according to the preferred embodiment of the present invention.

As shown in FIG. 4, in the flow rotating shaft according to the present invention, the lower rotating shaft 204 is inserted into the upper rotating shaft 202, and the lower rotating shaft 204 is supported by the support spring 208 and the fixed stopper 210.

In addition, the cross-shaped protrusion 212 of the lower rotating shaft 204 is coupled to the cross-shaped protrusion receiving portion 302 of the upper rotating shaft 202 to enable the vertical and horizontal flow of the lower rotating shaft 204.

A vertical bevel gear 154 is coupled to the outer circumferential surface of the upper rotary shaft 202 to receive a driving force from the horizontal bevel gear 152 attached to the drive shaft of the drive motor 150.

On the other hand, the cross-shaped projection 212 of the lower rotary shaft 204 and the cross-shaped projection receiving portion 302 of the upper rotary shaft 202 may be omitted in the practice of the present invention, but the smooth vertical and horizontal flow of the lower rotary shaft 204 In order to be provided, it is preferable.

In addition, the male protrusion 214 provided on the upper portion of the lower rotary shaft 204 and the spring coupling portion 218 provided on the lower end of the fixing stopper 210 may also be omitted in the practice of the present invention, but the lower rotary shaft 204 In order to ensure a solid touch of the support spring (208) during the flow of () is preferably provided.

The above-described flow rotation shaft according to the present invention is configured to separate the upper rotation shaft 202 and the lower rotation shaft 204 instead of the integral rotation shaft 156 in order to solve the stress applied to the integral rotation shaft when transmitting the driving force, the lower rotation shaft ( A support spring 208 was included for the carrying out of 204.

However, as will be described later, in addition to the support spring 208, the leaf spring 602 may be employed for the holding of the lower rotation shaft 204. Hereinafter, the flow rotation shaft using the leaf spring 602 will be described.

5 is a cross-sectional view and a side view of the upper rotary shaft in the flow rotary shaft according to another preferred embodiment of the present invention, Figure 6a is inserted into the upper rotary shaft in the flow rotary shaft according to another preferred embodiment of the present invention Figure 6b is a view showing the plane and side of the leaf spring, Figure 6b is a view showing the leaf spring and the leaf spring combination is inserted into the upper rotation shaft in the flow rotation shaft according to another embodiment of the present invention.

The upper rotating shaft 203 according to another embodiment of the present invention is provided with one or more leaf spring fixing portion 502 to be inserted into the leaf spring 602. The leaf spring fixing portion 502 is coupled to the fixing hook 604 of the leaf spring 602. The leaf spring 602 fixed to the leaf spring fixing part 502 is elastic and supports the upper portion of the lower rotating shaft 205 by the lower rotating shaft support 606.

Unlike the upper rotating shaft 202 described above, the upper rotating shaft 203 according to another embodiment of the present invention may not include the cross-shaped protrusion receiving portion 302, and as shown in the drawing shown on the right side of FIG. 5. , And a driving force transmission part through part 306 is provided therein.

Meanwhile, although the leaf spring 602 may be fixed to the leaf spring fixing part 502, the lower rotation shaft 205 may be hardened, but as shown in FIG. 6B, the leaf spring 602 is attached to the leaf spring assembly 608. After fixing, it is also possible to insert the upper rotation shaft 203.

The number of leaf springs 602 inserted into the upper rotary shaft 203 is preferably three or more to support the lower rotary shaft 205. In addition, the leaf spring 602 inserted to support the lower rotation shaft 205 evenly is preferably inserted to form an even angle. That is, when three leaf springs 602 are inserted to maintain the angle of 120 degrees to each other, and four leaf springs 602 to be inserted to maintain the angle of 90 degrees to each other.

7 is a view showing a lower rotating shaft in the flow rotating shaft according to another embodiment of the present invention.

The lower rotary shaft 205 according to another embodiment of the present invention has the same driving force transmission unit 206 as the lower rotary shaft 204 described above. However, the upper end portion 702 of the lower rotary shaft 205 according to another embodiment of the present invention is configured in a cylindrical shape.

As shown in FIG. 7, the A-A 'cross section of the driving force transmission unit 206 is rectangular, and the B-B' cross section of the upper end 702 is circular. Accordingly, the driving force transmission unit 206 passes through the driving force transmission unit through portion 306 of the lower rotation shaft 205, but the upper end 702 of the lower rotation shaft 205 is caught by the driving force transmission unit through portion 306.

However, in another preferred embodiment of the present invention, the shape of the upper end portion 702 is not limited to the cylinder, and may be a shape such that the lower rotary shaft 205 does not escape from the upper rotary shaft 203.

8 is a view showing a coupled state of the flow rotating shaft according to another embodiment of the present invention.

The lower rotary shaft 205 is inserted into the upper rotary shaft 203, and the side surface of the upper end 702 of the lower rotary shaft 205 is supported by the leaf spring 602. In addition, a fixing stopper 210 is fixed to the fixing stopper portion 304 of the upper rotation shaft 203.

Since the side surface of the upper end portion 702 of the lower rotary shaft 205 is supported by the leaf spring 602, the driving force transmission portion 206 of the lower rotary shaft 205 can move up, down, left and right, and by the leaf spring 602 It will return to the original position.

In addition, as in the case described above, a vertical bevel gear 154 is provided on the outer circumferential surface of the upper rotating shaft 205 to receive the driving force from the horizontal bevel gear 152 provided in the drive motor 150.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas falling within the scope of the present invention should be interpreted as being included in the scope of the present invention.

As described above, according to the present invention, the rotating shaft which transmits the driving force from the driving motor to the pivoting body in the latch assembly to move forward and backward the dead bolt as a flow rotating shaft can solve the stress received by the conventional integrated rotary shaft during the transmission of the driving force. It works.

In addition, when the door lock is attached to the door, there may be a margin of assembly tolerance between the latch assembly and the main body, and there is an effect that the driving force can be transmitted without being stressed against any assembly error.

In addition, the stress received by the conventional integrated rotary shaft acted as a load of the drive motor, and the use of the flow rotary shaft according to the present invention does not impose additional burden on the drive motor, thereby increasing the life of the drive motor and increasing the efficiency of power transmission. .

In addition, since the flow rotary shaft has almost no risk of damage due to fatigue accumulation, it is possible to prevent a situation in which the door cannot be opened or closed due to breakage of the rotary shaft, thereby improving the reliability of the door lock, and having an easy effect on post-management.

Claims (12)

In the rotating shaft for transmitting the dead bolt driving force of the door lock mortis, An upper rotating shaft to which the vertical bevel gear 154 receives the driving force from the horizontal bevel gear 152 of the driving shaft of the driving motor 150; And A lower rotating shaft coupled to the upper rotating shaft to transmit a driving force to the pivoting body 106 of the latch assembly 100 Deadbolt driving force transmission shaft of the door lock mortis, characterized in that it comprises a. The method of claim 1, The flow axis of rotation, A support spring 208 for holding the lower rotational shaft 204; And Fixed stopper 210 coupled to the fixed stopper receiving portion 304 of the upper rotary shaft 202 and supporting the support spring 208 Deadbolt driving force transmission shaft of the door lock mortis characterized in that it further comprises a. The method of claim 2, The lower rotation shaft 204 passes through the driving force transmission portion through portion 306 of the upper rotation shaft 202 and is inserted into the rotation shaft insertion portion 108 of the rotating body 106 and the cross-shaped projection ( 212, and the inside of the upper rotary shaft 202 for the dead bolt driving force transmission of the door lock mortis characterized in that it comprises a cross-shaped projection receiving portion 302 to mate with the cross-shaped projection (212). Flow axis of rotation. The method of claim 3, wherein The shape of the drive force transmission portion penetrating portion 306 and the cross-sectional shape of the drive force transmission portion 206 is a rectangular shape, the flow lock shaft for dead bolt drive force transmission of the door lock mortis. The method according to any one of claims 2 to 4, The lower rotation shaft 204 further includes a locking projection 214 for engaging the lower rotation shaft 204 with the driving force transmission part through portion 306 and a male protrusion 214 coupled to the support spring 208. Flow rotating shaft for transmitting the dead bolt drive force of the door lock mortis, characterized in that it comprises. The method of claim 5, The fixed stopper 210 is a flow rotating shaft for transmitting dead bolt driving force of the door lock mortis, characterized in that the elastic synthetic resin. The method of claim 1, The flow axis of rotation further comprises one or more leaf springs 602 that hold the lower axis of rotation 205 and a stationary stopper 210 that couples to the stationary stopper portion 304 of the upper axis of rotation 202. Flow rotating shaft for transmitting dead bolt driving force of door lock mortis. The method of claim 7, wherein The upper rotation shaft 203 is a flow rotation shaft for transmitting dead bolt driving force of the door lock mortis, characterized in that it comprises a leaf spring fixing portion 502 to which the leaf spring 602 is fixed. The method of claim 7, wherein The leaf spring 602 is coupled to the leaf spring assembly 608 is inserted into the upper rotation shaft 203, the flow rotation shaft for dead bolt drive force transmission of the door lock mortis. The method of claim 7, wherein The lower rotating shaft 205 passes through the driving force transmitting part through part 306 of the upper rotating shaft 203 and is inserted into the rotating shaft inserting part 108 of the rotating body 106 and the lower driving force transmitting part 206. And a top end portion 702 adapted to be caught by the driving force transmission portion through portion 306. The rotating shaft for transmitting the dead bolt driving force of the door lock mortis. The method of claim 10, The shape of the rotary shaft insertion portion 108 and the cross-sectional shape of the driving force transmission portion 306 is a rectangular shape, the cross section of the upper end portion 702 is a flow rotation shaft for dead bolt drive force transmission of the door lock mortis characterized in that the circular. The method according to any one of claims 8 to 11, The leaf spring 602 includes a fixed hook 604 coupled to the leaf spring fixing part 502 and a lower rotating shaft support part 606 for holding the lower rotating shaft 205. Flow axis for transmitting dead bolt drive force of Mortis.