TWI451017B - Position limiting device for a bolt of a door latch - Google Patents

Description

Tiandi suppository bolt limit device

The invention relates to a bolt stop device of a heaven and earth bolt, in particular to an adjustable bolt limit device, so as to accurately limit the bolt of the Tiandi bolt.

Referring to the seventh figure, the general heaven and earth plug structure includes a handle 12 protruding from the front surface of the door panel 21 of the cabinet 2, a turntable 11 disposed on the back (inner side) of the door panel 21, and two bolts 10 connected to the upper and lower ends of the turntable 11. . The handle 12 is connected to the turntable 11 for driving the turntable 8 to rotate, thereby driving the plugs 10 up and down to achieve the state of the plug (seventh figure) or the unplug. In addition, in order to prevent the bolts 10 from being randomly shaken during the lifting process, or to prevent the bolts 10 from being yawed back and forth when the door panels 21 are frequently opened or closed, the bolts 10 are provided. The resistance point of the door panel 21 is usually provided with a bolt limiting device 8 to provide limit protection and support for the bolt 10.

Referring to the seventh figure, the common bolt limiting device 8 is a simple L-shaped piece, which defines a bolt hole 80 which is slightly larger than the diameter of the bolt 10, thereby laterally clamping the bolt 10 so that the bolt The rod 10 is not easily shaken or deflected with an external force. However, such a simple L-shaped sheet must be specially made according to the size and position of the bolt 10, otherwise the alignment of the bolt 10 and the bolt hole 80 will cause problems, and the bolt 10 and the bolt hole 80 will be accurate. In the opposite position, the bolt When the runner 11 is driven up and down, it is still easy to rub against the hole wall of the bolt hole 80 of the L-shaped sheet to generate scraping and disturbing noise.

In order to avoid the above problems, the present invention provides an adjustable bolt limit device, which can adjust the size and position of the bolt of the heaven and earth bolt to limit the position, and can greatly reduce the wear and noise. problem.

To achieve the above object, the bolt limiting device of the present invention comprises a supporting unit, a first pulley and a second pulley. The support unit is fixed to the back of a door panel and includes a first support portion and a second support portion. The first pulley includes a first axle and a first wheel body sleeved on the first axle. Wherein the first wheel body has a concave curved middle section, and one end of the first wheel axle is adjustably positioned on the first support portion such that the first pulley can linearly follow a first level Direction adjustment.

Similarly, the second pulley includes a second axle and a second wheel body sleeved on the second axle. The second wheel body has a concave curved middle section, and one end of the second axle is adjustably positioned on the second support portion such that the second pulley can linearly position along a second horizontal direction Adjustment. Wherein, the two arcuate middle sections of the first wheel body and the second wheel body respectively respectively abut against the front side and the back side of the bolt of the heavenly bolt to limit the bolt.

As described above, the present invention utilizes two pulleys to limit the bolt, thereby greatly reducing the problem of wear and noise. Furthermore, the two pulleys of the present invention can adjust the position of the bolts relative to the size and position of the bolts to meet the needs. Therefore, the bolt limiting device of the present invention is more applicable to the heavenly bolt structure of different sizes.

Other objects, features, and details of the present invention will be apparent from the description and appended claims.

The first to fifth figures show a bolt limiting device 100 according to a first preferred embodiment of the present invention, which mainly includes a supporting unit 3 and a first pulley 4 and a second pulley 5 disposed on the supporting unit. In short, as shown in the third figure, the bolt limiting device 100 is mainly fixed to the back surface (inner side surface) of the door panel 21 of a cabinet 2 by the supporting unit 3, and the first pulley is utilized. 4 and the second pulley 5 is laterally constrained by one of the bolts 10 for one day.

Referring to the first figure, the support unit 3 includes a first support portion 31 of the upper layer and a second support portion 32 of the lower layer, and the first pulley 4 and the second pulley 5 are respectively adjustably disposed. Specifically, the support unit 3 is an L-shaped piece, and includes a first piece 30 fixed to the back surface of the door panel 21 and composed of the first support portion 31 and the second support portion 32. One of the second sheets. The first sheet 30 and the second sheet system are perpendicular to each other. Wherein the first piece 30 has at least one elliptical fixing The hole 301 has a long axis which is a horizontal direction and a short axis which is a vertical direction to provide a proper pre-adjustment for the entire L-shaped sheet to be appropriately adjusted according to the position of the bolt 10.

The first support portion 31 and the second support portion 32 respectively define a first guiding slot 310 and a second guiding slot 320, and the first guiding slot 310 and the second guiding slot 320 are respectively defined. They are respectively arranged along a first horizontal direction and a second horizontal direction. Obviously, in the first preferred embodiment, the first horizontal direction and the second horizontal direction are at different levels to provide the first pulley 4 and the second pulley 5 at different levels respectively. Positioning on.

As shown in the second figure, the first pulley 4 includes a first axle 41 and a first wheel body 42 sleeved on the first axle 41. One end of the first axle 41 is adjustably positioned in the first guiding slot 310 of the first supporting portion 31, so that the first pulley 4 can linearly follow the first guiding slot 310, It is to adjust the position along the first horizontal direction. The first wheel body 42 has a concave curved intermediate section 420 for abutting against the wall of the bolt 10 of the screw 1, as shown in the first figure.

Similarly, the second pulley 5 includes a second axle 51 and a second wheel body 52 sleeved on the second axle 51. One end of the second axle 51 is adjustably positioned in the second guiding slot 320 of the second supporting portion 32, so that the second pulley 5 can linearly follow the second guiding slot 320, that is, In the second horizontal direction, position adjustment is made. The second wheel 52 has a concave curved intermediate section 520 for abutting against the wall of the bolt 10 of the screw 1, as shown in the first figure.

Referring to the third figure and in conjunction with the first figure, the two curved intermediate sections 420, 520 of the first wheel body 42 and the second wheel body 52 are respectively respectively abutted against the front side of the bolt 10 of the heavenly bolt 1. And the back side to laterally limit the bolt 10. Thus, regardless of whether the bolt 10 is in the latching state (fourth diagram) or the unplugging state (fifth diagram), the first pulley 4 and the second pulley 5 can protect the bolt 10 from the door panel 21 When pulled or opened, it is arbitrarily rocked back and forth with respect to the door panel 21. More importantly, when the user pulls the bolt 10 up and down by operating the handle 12 outside the door panel 21, the first wheel body 42 of the first pulley 4 and the second wheel body 52 of the second pulley 5 follow The rotation is performed to reduce the friction with the wall surface of the bolt 10 and to prevent noise generation.

Preferably, as shown in the second figure, the first guiding slot 310 of the first supporting portion 31 is a rectangular hole, and the end portion of the first axle 41 has a square segment 410 corresponding to the card. The first guiding groove 310 of the first supporting portion 31 prevents the first axle 41 from being loosened as the first wheel body 42 rotates. Similarly, the second guiding groove 320 of the second supporting portion 32 is also a rectangular hole, and the end portion of the second axle 51 has a square segment (not shown) correspondingly engaged with the second supporting portion 32. The second guiding groove 320 prevents the second axle 51 from being loosened as the second wheel body 52 rotates.

In addition, the first pulley 4 further includes a first wheel axle 41 formed on the first axle 41 And a flange 43 adjacent to the square segment 410 and a gasket 44 sleeved on the first axle 41. The end edge of the spacer 44 and the other end portion 412 of the first axle 41 is fixed by riveting, whereby the first wheel body 42 is interposed between the flange 43 and the spacer 44. Similarly, the second pulley 5 is also sandwiched between the flange 53 and the spacer 54 by the same manner, and therefore will not be described again.

On the other hand, the first pulley 4 further includes a shimming nut 45 for fixing the end of the first axle 41, and the end of the first axle 41 is further exposed to the first support. A threaded section 411 outside the first guide groove 310 of the portion 31. According to the size and position of the bolt 10, the user can correspondingly adjust the square segment 410 of the end portion of the first axle 41 to be engaged in a proper position of the first guiding slot 310 of the first supporting portion 31. Thereafter, the threaded section 411 of the first axle 41 and the nut 45 are screwed together, so that the first pulley 4 can be selectively positioned at an appropriate position of the first support portion 31. Similarly, the second pulley 5 is also selectively positioned at a proper position of the second support portion 32 by a gasketed nut 55, and therefore will not be described again.

Figure 6 is a view showing a bolt stopper device 200 according to a second preferred embodiment of the present invention, which is substantially the same as the first preferred embodiment described above, except that the first pulley 4 and the second pulley 5 are located at the same At the level. In other words, the first horizontal direction and the second horizontal direction are at the same level, so in the second preferred embodiment, the bolt limit The supporting unit 7 of the bit device 200 includes a first piece 70 and a second piece perpendicular to each other, wherein the second piece includes a first supporting portion 71 away from the first piece 70 and adjacent to the first piece One of the second support portions 72. The first support portion 71 and the second support portion 72 collectively define a guiding slot 712 for the first axle 4 and the second axle 5 to be adjustably positioned at the same level. Similarly, the guiding groove 712 of the second piece is also a rectangular hole, and a square segment (not shown) of the end of the first wheel shaft is correspondingly engaged to prevent the first wheel shaft from rotating. Other specific features of the second preferred embodiment may be referred to the description of the first preferred embodiment, and thus are not described again.

In summary, the present invention utilizes two pulleys to limit the bolt, thereby greatly reducing the problem of ground wear and noise, and the two pulleys can adjust the position of the bolt relative to the size and position of the bolt to meet the needs. The bolt stopper device of the invention is more suitable for the structure of the sky bolt of different sizes.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of this creation shall be included in the scope of the appended patent application.

100‧‧‧Bolt limiter

1‧‧‧天地栓

10‧‧‧ bolt

11‧‧‧ Turntable

12‧‧‧Hands

2‧‧‧ cabinet

21‧‧‧ Door panel

3‧‧‧Support unit

30‧‧‧ first body

301‧‧‧Fixed holes

31‧‧‧First support

32‧‧‧Second support

310‧‧‧First channel

320‧‧‧Second guiding channel

4‧‧‧First pulley

41‧‧‧First axle

410‧‧‧Square segment

411‧‧‧Threaded section

412‧‧‧Other end

42‧‧‧First round body

420‧‧‧The middle section of the arc

43‧‧‧Flange

44‧‧‧shims

45‧‧‧ nuts

5‧‧‧Second pulley

51‧‧‧Second axle

52‧‧‧Second round body

520‧‧‧The middle section of the arc

53‧‧‧Flange

54‧‧‧shims

200‧‧‧Bolt limiter

7‧‧‧Support unit

70‧‧‧ first piece

71‧‧‧First support

72‧‧‧Second support

712‧‧‧ Guide slot

8‧‧‧Bolt limiter

80‧‧‧Bolt hole

The first figure is a perspective view of a bolt limiting device according to a first preferred embodiment of the present invention.

The second figure is an exploded perspective view of the bolt limiting device of the first figure.

The third figure is a partial cross-sectional view for showing the case where the bolt limit device of the first figure is applied to the heaven and earth bolt and the door panel.

The fourth figure shows the state in which the bolt of the heaven and earth bolt of the third figure is in the state of the plug.

The fifth figure shows that the bolt of the heavenly anchor of the third figure is in a state of being unplugged.

Figure 6 is a perspective view of a bolt stop device according to a second preferred embodiment of the present invention.

The seventh figure shows the case where the conventional bolt stop device is applied to the heaven and earth bolt and the door panel.

100‧‧‧Bolt limiter

10‧‧‧ bolt

3‧‧‧Support unit

30‧‧‧ first body

301‧‧‧Fixed holes

31‧‧‧First support

32‧‧‧Second support

310‧‧‧First channel

320‧‧‧Second guiding channel

4‧‧‧First pulley

420‧‧‧The middle section of the arc

5‧‧‧Second pulley

520‧‧‧The middle section of the arc

Claims (10)

A bolt limiting device for limiting a bolt of a day bolt, the device comprising: a supporting unit for fixing on a back surface of a door panel, and comprising a first supporting portion and a second supporting portion a first pulley comprising a first axle and a first wheel body sleeved on the first axle; wherein the first wheel body has a concave curved middle section, and one end of the first axle Adjustably positioned on the first support portion such that the first pulley is linearly positionally adjustable along a first horizontal direction; and a second pulley includes a second axle and sleeved on the second a second wheel body on the axle; wherein the second wheel body has a concave curved middle section, and one end of the second axle is adjustably positioned on the second support portion, so that the second pulley can be Linearly adjusting the position along a second horizontal direction; wherein the two curved intermediate sections of the first wheel body and the second wheel body respectively support a front side and a back of the bolt of the heavenly bolt Side to limit the bolt. The bolt limiting device according to claim 1, wherein the first horizontal direction and the second horizontal direction are tied at different levels. The bolt limiting device according to claim 2, wherein the supporting unit is an L-shaped piece, comprising a first piece and perpendicular to a second sheet body of the first sheet body, the first sheet system is fixed on the back surface of the door panel, and the second sheet body includes the first support portion and the second support portion, the first The support portion and the second support portion respectively define a first guide groove and a second guide groove parallel to each other; the first guide groove and the second guide groove are respectively along the second horizontal direction and the second horizontal direction The arrangement is configured to adjustably position the first axle and the second axle at different levels. The bolt limiting device according to claim 3, wherein the first guiding portion of the first supporting portion is a rectangular hole, and the end portion of the first axle has a square segment corresponding to the card. Enter the first guide slot. The bolt limiting device according to claim 4, wherein the first pulley further comprises a gasket sleeved on the first axle and a first one formed on the first axle and adjacent to the square segment a flange, and the gasket is riveted and fixed to an end edge of the other end of the first axle to sandwich the first wheel body between the flange and the gasket. The bolt limit device of claim 5, wherein the first pulley further comprises a nut, and the end of the first axle further has a first guide protruding from the first support portion. A threaded section outside the slot is screwed to the nut. The bolt limiting device according to claim 3, wherein the first body has at least one elliptical fixing hole having a horizontal long axis and a vertical short axis. The bolt limiting device according to claim 1, wherein the first horizontal direction and the second horizontal direction are at the same level. The bolt limiting device according to claim 8, wherein the supporting unit is an L-shaped piece, comprising a first piece and a second piece perpendicular to the first piece, the first a first system for supporting the first support portion and the second support portion, the first support portion and the second support portion jointly defining a guide groove. The first axle and the second axle are adjustably positioned at the same level. The bolt limiting device according to claim 9, wherein the guiding groove of the second body is a rectangular hole, and the end portion of the first wheel has a square segment corresponding to the card. Guide groove.