WO2012113139A1

WO2012113139A1 - Semiautomatic hand clamping prevention device

Info

Publication number: WO2012113139A1
Application number: PCT/CN2011/071188
Authority: WO
Inventors: 甄文景; 李启业
Original assignee: Yan Man King; Li Kai Yip
Priority date: 2011-02-23
Filing date: 2011-02-23
Publication date: 2012-08-30

Abstract

A hand clamping prevention device includes a buffer, a fixing device for keeping the buffer, and a connector which connects the buffer and the fixing device elastically. The connector moves the buffer between a retracted position while the door is open and an extended position while the door is closed. The buffer includes a rotating shaft and at least one doorstopper piece installed rotatablely on the rotating shaft; one end of the connector is fixed on the rotating shaft, while the other end of the connector is fixed on the fixing device.

Description

Semi-automatic anti-pinch device

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a door-related guard, and more particularly to a device that is mounted on a door or door frame to prevent a hand or finger from being caught by the door. Background technique

As is well known, the door is rotatably coupled to the door frame by one or more separate hinges. When the door is in the open position, the door shaft side and the door lock side of the door form a door gap with the door frame. People may accidentally put their hands or fingers into the gap, especially for some children, who tend to put their hands or fingers into the gap when they are playing or when they are not being watched. When the door is closed, the door gap gradually shrinks and the hand or finger placed in the door gap is pinched. A slight pinch may be just a finger pain, but a severely pinched person may cause a broken or even broken finger. Therefore, the door gap is a potential home hazard that cannot be ignored.

In an international publication called Injury (Injury, Int. J. Care Injured, Volume 31, Issue 8, October 2000, Pages 571-573), a title by NV Doraiswamy et al. was published. An article entitled "Isolated finger injuries in children - incidence and aetiology". The article pointed out: A special survey conducted by an accidental and emergency department on all the children it received was that 283 of the 426 children had a finger injury during the period of 6 months, most of which occurred. At home (59%), and older than 5 years old (38%)... The most common reason is that it is injured by "clamp/squeeze" (48%), most children (59%) Injured by the door of the living/living room (32%), and usually occurs at the door axis (49%)... Infrequently, the child is self-harming when closing the door. The report also pointed out: It is common for children to hurt their hands when they close their doors (60%), and of course, adults are caused by accidents (25%)... whether children or adults , should be repeatedly taught to take safety measures to prevent finger damage.

All along, people have tried various efforts to reduce the risk of the door gap, especially to reduce the danger to children who like to play in the gap. For example, German Patent No. DE3626924, British Patent No. GB2218449 and GB2306538 disclose some anti-pinch devices. However, some of these devices may cause damage to the door or the door frame. Some of them cannot protect the door shaft side and the door lock side of the door at the same time. Some are not beautiful enough, some protect the child's small fingers, and some are troublesome to use (for example) It is installed on the door when it is used, but it needs to be removed when the door is closed to completely close the door;). The applicant of the present application also proposes an anti-pinch device in Chinese Patent No. ZL200410058916.9, which includes a buffer, a fixing device for holding the buffer, and a connecting member. The damper is between the outer side surface of the door and the door frame in the closed state, and is in the door gap formed between the door and the door frame in the open state. Both ends of the connecting member are respectively connected to the buffer and the fixing device. This anti-pinch device still has some drawbacks, such as insufficiently and smoothly retracting into the door gap after the buffer is pulled out.

The present invention has been made in view of the above-mentioned Chinese patent anti-pinch device, which can effectively prevent the door gap formed on both the door shaft side and the door lock side of the door from being tightly closed, and protects the hand or the finger from being pinched. The anti-pinch device of the invention not only does not cause damage to the door or the door frame, but also has a beautiful appearance and is simple and convenient to use. Summary of the invention

SUMMARY OF THE INVENTION It is an object of the present invention to provide a semi-automatic anti-pinch device that avoids the occurrence of major accidental injuries such as a hand or finger being pinched on the side of the door lock or on the side of the door shaft.

Another object of the present invention is to provide a semi-automatic anti-pinch device that does not need to be removed every time the door is closed, and is reinstalled each time the door is opened. The anti-pinch device of the present invention has a unique structure and semi-automatic characteristics. When the door is opened, the buffer is instantly restored to the original position by the force of the built-in spring, and the door is prevented from being closed immediately, thereby preventing the finger from being pinched. Since the connector of the anti-pinch device is thin enough, the door is allowed to be completely closed.

In order to achieve the above object, the present invention provides an anti-pinch device including a buffer, a fixing device for holding the buffer, and a retractable between the buffer and the fixing device a connecting member, the connecting member being movable between a retracted position in an open state and an extended position in a closed state, the bumper including a rotating shaft and at least one rotatably mounted on the rotating shaft The upper door plug member; the connecting member is fixed at one end to the rotating shaft, and the other end is fixed to the fixing device.

In a preferred embodiment of the present invention, the door stopper is two rollers that are sleeved at opposite ends of the rotating shaft, and the two rollers can independently rotate around the rotating shaft. More preferably, the rollers each comprise an inner layer and an outer layer, wherein the inner layer is made of a rigid material such as a rigid plastic or metal, the outer layer being made of a soft material such as a soft plastic such as rubber.

Preferably, the inner layer of the roller is detachably sleeved on the rotating shaft, and the outer layer of the roller is detachably sleeved on the inner layer. According to the present invention, when the outer diameter of the roller is between 15 mm and 40 mm, the buffer of the anti-pinch device is stuck in the door gap to prevent the door gap from being closed and to protect the child's fine fingers from being pinched. The damper has a maximum diameter of between 2 mm and 20 mm after the roller is removed, and is capable of passing a door gap formed between the door and the door frame. The securing means may comprise an elastic winding device that telescopes the length of the connector. In a specific embodiment, the elastic winding device includes a reel, the other end of the connecting member is fixed on the reel; and a constant force spring, the constant force spring is fixed at one end to the spring holder, and the other end is fixed On the reel to drive the reel to rotate. A bearing is mounted on each end of the reel to assist in the rotation of the reel.

Preferably, the fixing device further includes a housing, the housing is provided with an elongated slot and the housing is formed with an internal receiving chamber, the connecting member is telescopic through the elongated slot, and the reel The constant force spring and the spring retainer are both placed in the accommodation chamber.

In another embodiment of the invention, the securing device further includes a locking device for locking the connector. Specifically, the locking device includes at least one tooth piece, the tooth piece is fixedly connected with the reel; the locking pin is slidably mounted in the accommodating chamber of the housing, and can be locked Moving between a position and an unlocked position, wherein in the locked position, the bayonet is engaged with the toothed piece to block rotation of the reel, and in the unlocked position, the detent is disengaged from the toothed piece, so that The reel is free to rotate.

The fixture can be mounted to the door or door frame by glue or fasteners.

According to the anti-pinch device of the present invention, the connecting member is thin enough to be placed in the door gap in the closed state. For example, the connector may be a tape.

According to the anti-pinch device of the present invention, since the damper employs a roller that is rotatable relative to its rotation axis, the roller can be smoothly and quickly returned to the connector during the retraction of the connector by the force of the constant force spring. In the door gap. In addition, the setting of the locking mechanism makes it possible to control and lock the expansion and contraction of the connector, facilitating the installation and use of the gripping device.

The concept, the specific structure and the technical effects of the present invention will be further described in conjunction with the accompanying drawings in order to fully understand the objects, features and effects of the invention. DRAWINGS

1 is a perspective view of an embodiment of a semi-automatic anti-pinch device of the present invention;

Figure 2 is an exploded view of the device of Figure 1;

3A to 3D are schematic views showing the use state of the semi-automatic anti-pinch device of the present invention;

Referring to Figures 1 and 2, there is shown a semi-automatic anti-pinch device 100 as a preferred embodiment of the present invention, the anti-pinch device 100 including a buffer 10, a fixture 30, and a buffer 10 A connector 50 that is coupled to the fixture 30.

As shown, the bumper 10 includes a rotating shaft 12 and two doors rotatably mounted on the rotating shaft 12 Plug pieces. The door stopper member can be formed into various shapes, preferably in a circular shape. In this respect, the pressure applied to the door edge and the door frame and the friction generated therebetween can be reduced; on the other hand, the circular door stopper also helps the buffer 10 to be automatically and automatically returned by the connecting member. In the door gap.

In this embodiment, the door stopper is two rollers 14 that are oppositely sleeved at opposite ends of the rotating shaft 10. The rollers 14 are each independently rotated about the rotary shaft 12 without affecting each other. The roller 14 is rotatable about the axis of rotation so that the roller 14 can smoothly and quickly return to the click in the door gap during the retraction of the connector by the force of the constant force spring. Rotating the two rollers 14 independently will ensure a smoother reset of the bumper.

Preferably, the rollers 14 each include an inner layer 141 and an outer layer 142, wherein the inner layer is made of a rigid material such as rigid plastic or stainless steel. The outer layer 142 is made of a soft material such as a soft plastic. The soft outer layer 142 is intended to prevent damage to the door or door frame due to impact or friction during rolling, and the rigid inner layer 141 provides support for the soft inner layer 142.

According to the embodiment, the inner layer 141 of the roller is detachably sleeved on the rotating shaft 12, and the outer layer 142 of the roller is detachably sleeved on the inner layer 141. When installing the anti-pinch device of the present invention, the outer layer 142 of the roller or the outer layer 142 of the roller and the inner layer 141 can be removed together, so that the outer layer 142 can be removed or the buffer of the entire roller can be removed in the door gap. by.

It can be understood that the diameter of the roller determines the final width of the door gap when the door is closed. The present inventors have found that when the outer diameter of the roller (the outer diameter of the outer layer 142 in this embodiment) is between 15 mm and 40 mm, the buffer 10 is caught in the door gap to prevent the door gap from being tightly closed. Make sure your child's tiny fingers are not pinched. In the present embodiment, after the roller is removed, the remaining portion of the damper 10 has a diameter of at most not more than 20 mm, preferably between 2 mm and 20 mm, to facilitate passage of the remaining portion of the damper through the door gap.

As shown in Fig. 2, the fixture 30 includes an elastic winding device 32 that can telescope the length of the connector. The elastic winding device 32 includes a reel 321 and a constant force spring 322. The constant force spring 322 is a one-piece winding spring housed in the spring holder 323, wherein the constant force spring 322 is fixed to the spring holder 323 and the other end is fixed to the reel 321 . The use of a constant force spring ensures an even and stable force on the connector 50. By the force of the constant force spring 322, the reel 321 is driven to rotate. In order to assist the reel 321 to smoothly rotate, a bearing 324 may be attached to both ends of the reel 321 .

The fixture 30 may further include a housing 34 formed with an internal accommodation chamber 341 to accommodate the elastic winding device 32 and all other components, including the reel 321, the constant force spring 322, the spring retainer 323, and the bearing 324, etc. Wait. The housing 34 further includes a cover 343 and the cover 343 and the receiving chamber 341 can be fastened together by screws and thereby form an elongated slot 342 to allow the connector 50 to pass, see Figure 1. The purpose of providing the housing 34 is to make the anti-pinch device of the present invention safer and more aesthetically pleasing.

The fixture 30 further includes a locking device for locking the connector, the locking device including at least A tooth piece 361 and a locking bayonet 365. The tooth piece 361 has a disk shape, and a plurality of teeth 362 are formed along the outer circumference of the disk. The tooth piece 361 is fixedly sleeved on the inner side of the reel 321 - the upper end bearing 324. The locking bayonet 365 is slidably mounted in the receiving chamber 341 of the housing 34 and movable between a locked position and an unlocked position, wherein the latch 365 and the teeth 362 of the tooth 361 are in the locked position The snapping prevents the spool 321 from rotating; in the unlocked position, the bayonet 365 is disengaged from the teeth 362 of the blade 361, allowing the spool 321 to freely rotate. The outer surface of the locking bayonet 365 may be provided with a score to not slip when pushed.

The purpose of the locking device is to lock the connector 50. Normally, the connecting member 50 is automatically returned to its retracted position by the action of the constant force spring 322, which causes inconvenience in installation. Since the anti-pinch device of the present invention is required to pull the connector out to its extended position, the connector is passed through the door gap together with the bumper. With the locking device, the connector can be locked in its extended position and no longer automatically reset for easy installation.

As shown in FIG. 2, the housing chamber 341 of the housing 34 is divided into three housing portions, wherein the first housing portion is for receiving the constant force spring 322 and its holder 323, and the second housing portion is for receiving the reel 321 and retracting. The connector 50, the third receptacle for receiving the locking device and allowing the locking device to be operated outside of the housing 34.

The fixture 30 can be mounted to the door or door frame by glue or fasteners such as screws. For example, an adhesive may be applied to the outer surface of the housing 34. Of course, the fixing device can also be mounted in other ways.

The connector 50 is made of a soft, flexible material and is sufficiently thin to be placed in the door gap in the closed state. In this embodiment, the connector 50 is a tape. The connecting member 50-end is fixed and wound around the rotating shaft 12 of the damper 10 and placed between the two rollers 14, and the other end is fixed and wound around the reel 321 of the fixing device 30. After being pulled out to the extended position by the external force, the connecting member 50 can automatically return to its retracted position by the constant force spring 322.

When installing the anti-pinch device of the present invention, the entire roller 14 (including the outer layer 142 and the inner layer 141) is first removed, and the outer cover, such as the adhesive paper attached to the cover 343, is peeled off, and then the housing is securely mounted. On the edge of the door near the side of the door shaft, the installation height should be a position that is not accessible to children, such as a height of about 1.5 meters, which is convenient for the operation of the anti-pinch device. Pull the connector 50 out and lock the connector in the pull-out position with the locking device. After the damper 10 and the connecting member 50 of the removing roller 14 are passed through the door gap, the roller 14 is reinstalled, and the locking device is moved to the unlocked position, so that the connecting member 50 automatically retracts the damper to the retracted position. This completes the entire installation process.

Figures 3A through 3D show schematic views of the anti-pinch device of the present invention in a stationary and in use state. In the picture

In 3A, the door 60 is in the open state, and the device of the present invention is in a rest state in the retracted position, that is, the damper 10 is in the door gap formed between the door shaft edge of the door 60 and the door frame 70, and the fixing device 30 is attached to the door 60 close to door On the inner side surface of the shaft or attached to the adjacent door frame 70 (not shown;), the connecting member 50 is housed in the housing 34 of the fixing device by the elastic winding device 32 of the fixing device 30. Shrinking connector 50 makes the bumper

The card 10 is caught in the door gap abutting the fixing device 30, and the damper 10 does not slide in the door gap since the fixing device is securely mounted on the door or the door frame.

Figure 3B shows the door 60 in a closed state. As shown, when the door 60 is closing, the door 60 will first hit the bumper 10. Since the bumper 10 is pinched in the door gap formed by the door 60 and the door frame 70, the door stops closing. The diameter of the roller on the bumper determines the final width of the door gap.

Figure 3C shows the application of a horizontal pulling force on the damper 10 to pull the connector 50 out of the elastic winding device of the fixture 30, thereby pulling the damper 10 out of the door gap in the horizontal direction.

Figure 3D shows a schematic view of the anti-pinch device when it is completely closed. As shown, since the damper 10 is pulled out, the connector 50 is sufficiently thinly accommodated in the door gap of the closed state, so that the door can be completely closed. The cushion 10 is retracted by the elastic force and held between the outer side surface of the door and the door frame.

When the door is opened again, the connector 50 is retracted into the housing 34 of the fixture 30 by the force of the spring, thereby automatically returning the bumper to its original position, i.e., jamming in the door gap, preventing the door from closing.

According to the present invention, the connecting member may be made of any material and thin enough, the bumper may be any shape that can be caught in the door gap to prevent the door from closing, and the fixing means may be fixed to the door or the door frame by various conventional means. on. In use, the object of the invention is achieved by the telescopic movement of the connector.

The problem of pinching a hand or a finger occurring on the door lock side and the door shaft side can be effectively solved by the anti-pinch device of the present invention. As long as the device of the present invention is installed, the buffer is automatically reset and stuck in the door gap to prevent the door from closing. In addition, when the door is completely closed, the anti-pinch device of the present invention does not need to be taken out, and the use is relatively simple and convenient.

In summary, what has been described in this specification is only a preferred embodiment of the present invention. Any technical solution that can be obtained by a person skilled in the art according to the prior art by logic analysis, reasoning or limited experimentation based on the prior art is within the scope of the claims of the present invention.

Claims

An anti-pinch device, the anti-pinch device comprising a buffer, a fixing device for holding the buffer, and a connecting member for retractable connection between the buffer and the fixing device, The connector moves the damper between a retracted position in a door opening state and an extended position in a door closing state, wherein the damper includes a rotating shaft and at least one rotatably mounted on the rotating shaft a door plug member; the connecting member is fixed at one end to the rotating shaft, and the other end is fixed to the fixing device.

2. The anti-pinch device according to claim 1, wherein: the door stopper is two rollers that are oppositely sleeved at both ends of the rotating shaft.

3. The anti-pinch device according to claim 2, wherein: the two rollers independently rotate about the rotation axis.

4. The anti-pinch device according to claim 2, wherein: the rollers each comprise an inner layer and an outer layer, wherein the inner layer is made of a rigid material, and the outer layer is made of a soft material. .

5. The anti-pinch device according to claim 4, wherein: the inner layer is made of a rigid plastic or metal, and the outer layer is made of a soft plastic. Book

6. The anti-pinch device according to claim 4, wherein: the inner layer is detachably sleeved on the rotating shaft, and the outer layer is detachably sleeved on the inner layer.

The anti-pinch device according to any one of claims 4 to 6, wherein: the outer diameter of the roller is between 15 mm and 40 mm, and the maximum of the buffer after the roller is removed Diameter in 2mm to

Between 20mm.

The anti-pinch device according to claim 1, wherein the fixing device includes an elastic winding device that can expand and contract the length of the connecting member.

9. The anti-pinch device according to claim 8, wherein: the elastic winding device comprises a reel, the other end of the connecting member is fixed to the reel; and a constant force spring, the constant force spring One end is fixed to the spring holder, and the other end is fixed to the reel to drive the reel to rotate.

The anti-pinch device according to claim 9, wherein: a bearing is attached to each end of the reel to assist the rotation of the reel.

1 . The anti-pinch device according to claim 9 , wherein the fixing device further comprises a housing, the housing is provided with an elongated slot and the housing is formed with an internal receiving chamber, The connector is telescoped through the elongated slot, and the spool, the constant force spring, and the spring retainer are both disposed within the receiving chamber.

The anti-pinch device according to any one of claims 8 to 11, wherein: the fixing The device also includes a locking device for locking the connector.

The anti-pinch device according to claim 12, wherein: said locking device comprises at least one tooth piece, said tooth piece being fixedly coupled to said reel; locking a detent, said detent being slidably Mounted in the accommodating chamber of the housing and movable between a locked position and an unlocked position, wherein in the locked position, the bayonet engages with the toothed piece to block the reel from rotating, in the unlocked position When the bayonet is disengaged from the toothed piece, the reel is free to rotate.

The anti-pinch device according to claim 1, wherein the fixing device is attached to the door or the door frame by an adhesive or a fastener.

The anti-pinch device according to claim 1, wherein: said connecting member is sufficiently thin so as to be placed in a door gap in a closed state.

The anti-pinch device according to claim 15, wherein: the connecting member is a tape.