MXPA97002318A

MXPA97002318A - Device for lifting and lowering a moving side of a bed b

Info

Publication number: MXPA97002318A
Application number: MXPA/A/1997/002318A
Authority: MX
Inventors: Pham Viet
Original assignee: Pham Viet
Priority date: 1996-03-27
Filing date: 1997-03-26
Publication date: 1998-04-01

Abstract

The present invention relates to a device for raising and lowering a mobile side of a baby's crib, the mobile side includes two end rails that connect an upper rail and a bottom rail, the cradle has corner posts that include two operational poles , to mount the mobile side between them, the device comprises: resiliently loaded pin mounts provided at the ends of the rail in the bottom, projections, each having a dockable head portion which are provided in an upper position of the operating poles, each of the end rails is formed with a coupling slider in an upper portion for accommodating the position of engageable head of the projection, and assemblies that engage the position of engageable head of the projection to slide on the slider of coupling, each operating pole has integrally formed a pin guide track in a lower portion, the track has an elongated section vertical section and a return section which is provided in the upper part of an elongated section as a continuation of the elongated section and which meets in a junction near the top of the elongated section, a sharp depression formed in the elongated section between the joint and the upper part of the elongated section that defines a confining shoulder to engage the pin and prevent it from returning directly into the track below the shoulder, mounts that are provided in the elongated section beyond the shoulder of confinement and in the return section to exert continuous resistance in the pin assemblies as the latter move towards the return section and into the return section, until they begin moving downward in the return section.

Description

DEVICE FOR LIFTING AND LOWERING A MOVING SIDE OF A BABY'S BED DESCRIPTION OF THE INVENTION The present invention relates to a device for lowering or lifting a lateral mobile door of a baby's crib. More particularly, the invention relates to a cradle having a side door that can be manipulated, such as when raising or lowering it in a completely secure manner, while the device allowing this operation is not apparent to the eye and therefore not It is harmful to the aesthetic aspect of the cradle. For safety purposes and to facilitate the handling of a baby, it is normal to provide a baby crib with at least one mobile side. In general, these cradles have a mechanism that allows locking the mobile side in an upward position and this bolt should not be easily detached to protect the safety of the baby as well as that of the person caring for the baby. Guides published in the Canada Gazette, Part II, Vol. 120, No. 20, it is recommended that "each mechanism of rolling or interlocking of a mobile side other than a mattress support mechanism, shall (a) require two separate actions positive and simultaneous by the user to release the mechanism, and (b) to automatically connect ". Therefore it will be seen that for a baby to comply with the regulations, it is essential that both actions are involved and that the crossing is automatic.

A review of the prior art discloses some US Patents. The U.S. Patent No. 797,852 describes a cradle that can be turned into a table or a sofa or couch. In modern technology, it is clear that this article would be totally defective, and in any case it does not address the safety of the baby. The U.S. Patent No. 1,695,571 describes a cradle with a side that is adapted to be raised or lowered and requires two actions as suggested by the regulations. The locking device that is provided by the simple return of the guide member is so simple to make it unsafe.

Also, since the guiding members have to be mounted on the poles, the cradle of that patent is dangerous and not attractive. The Lunden Patent (U.S. Patent No. 2,369,834) provides movement only when the door is lowered which is dangerous and contrary to regulations. Finally, the Patent of the U.S.A. 5,165,124 issued to Li on November 24, 1992, describes a lift gate control that requires two actions as provided by the regulations. Due to the structure of the sliding track where the rod is traversed, only an action such as lifting can cause the door to be unintentionally lowered. In other words, this patent does not provide safe measurement against accidental unlocking of the steelwork mechanism. Also, this device has to be mounted outside the poles which is not attractive and can be dangerous. It is therefore an object of the present invention to provide a mobile side door of a baby's crib, which is safer to operate and more aesthetic. According to the invention, there is provided a device for raising and lowering a mobile side of a baby's crib, the mobile side includes two end rails connecting an upper rail and a bottom rail, the cradle comprises a corner post, which includes two operational poles to mount the mobile side between them. The device comprises resiliently loaded pin means, which are provided at the ends of the bottom rail, projections, each having a mating head portion, which are provided on an upper portion of the operating poles, each end rail is formed with a slider engaging an upper portion for coupling the engageable head portion of a projection, and means for allowing the engageable portion of the projection to slide on the engaging slider. Each operating post is also integrally formed with a pin guide track in a lower portion, the track, having a vertical elongated section and a return section that is provided in the upper part of the elongated section as a continuation of the elongated section and that gathers the same in a union near the top of the elongated section. A sharp depression is shape in the elongated section between the joint and the elongated section cap that defines a confining shoulder to engage the pin and prevent it from returning directly to the track below the shoulder. Finally, means are provided in the elongated part beyond the confinement shoulder and in the return section to exert continuous resistance on the pin means, as the latter move towards and into the return section until it begins to move towards down in the return section. The pin means preferably is spring loaded. According to a preferred embodiment, a perforation is provided at both ends of the bottom rail, each spring loaded pin means comprises a helical spring disposed at the bottom of the bore, a pin with a rounded head having an inner end inserted in the helical spring and ribs that are provided in the pin that bear against an upper end of the coil spring, and a sleeve that is provided at the outlet of the bore to receive the pin in sliding engagement. The coupling slide is preferably formed with two lateral jaws both adapted to receive the head portion. According to another preferred embodiment, the elongated section of the track, from the bottom to the top has a first shallow constant portion, of depth uniform, a second deeper ascending portion and a descending portion connecting the first and second portions. The second deeper ascending portion terminates in the confining shoulder and the elongated section has a gradually decreasing depth from the confining shoulder to its upper part, thereby exerting a first resistance in the resiliently loaded pin means as the latter travel towards the confining shoulder and a second resistance in the resiliently loaded pin means as the latter travel from the shoulder to the upper part of the elongated section. According to yet another embodiment, the return section comprises a first part at an angle with respect to the elongated and substantially horizontal section continuing the track at the top of the elongated section, the first part is followed by a second part that joins the elongated section below the confinement shoulder. In addition, the first part of the return section may have a bottom gradually rising until it meets the second part, the latter having a uniform depth until it meets the second portion below the confinement shoulder, wherein of pin are arranged to step down abruptly within the first portion of the elongated section.

Finally, the first part may be substantially perpendicular to the elongated section, and the second part may be parallel to and then deviated toward the elongated portions until it is gathered below the confining shoulder. The preferred union is formed to constitute a downward step. The invention will now be illustrated by a mode that is given for the purpose of illustration only and is not intended to restrict the invention. In the drawings: Figure 1 is a perspective view of the cradle of a baby according to the invention; Figure 2 is a perspective view of a glide track; Figure 3 is a front view of the guide track illustrated in Figure 2; Figure 4 is a cross-sectional view taken on lines 4-4 of Figure 3; Figure 5 is a cross section taken on lines 5-5 of Figure 3; Figure 6 is a cross-sectional view of the track and the sliding guide; and Figure 7 is a cross-sectional view through one of the end rail and the corresponding operative post showing the operation of the invention.

As illustrated, this invention deals with the mobile side 1 of the cradle of a baby 3. The cradle 3 is of course standard writing and comprises the mobile side 1, front side 5, rear side 7 and opposite side 9. The bed it can also include four corner posts 11, 13, 15 and 17. Posts 15 and 17 below will be referred to as operational poles. As illustrated, the movable side gate 1 is mounted between operating poles 15 and 17, as will be described later. The construction of the mobile side l is conventional and includes top rails 19, bottom rail 21 and end rails 23, 25. A plurality of bars 24 are disposed between the end rails 23 and 25. With reference to Figure 7, You will see that a spring-loaded pin 27 is mounted on both ends of the bottom rail 21. More particularly a hole 29 as illustrated in the drawings with each end of the bottom rail 21. The coil spring is then assembled in a manner known as illustrated, at the bottom of the perforation 29. In addition, a sleeve 33 is provided with a collar 35, is mounted at the outlet of the perforation 29. The pin 27 is formed in known manner with ribs 37 which are arranged to rest against the upper end 39 of the coil spring 31. Finally, for a uniform device operation, the past 27 has a rounded head 41.

As illustrated above in the drawings, the device according to the invention also includes a pin guide track 43, which is integrally formed or provided in the operating post. The post 17 is arranged in the same way as the post 15, but with a view in the mirror of the part 43. With particular reference to Figure 2 it will be seen that the guide track of the pin 43 has a substantially elongated section 45 and a return section 47. The latter in the coordination of the elongated section 45 and that meets with it in the joint 49 near the top of the elongated section 45. With particular reference to the elongated section 45, the latter will be seen formed with a sharp depression between the ascending portion 55 and the upper part of the elongated section, this depression defines a confining shoulder 51. As illustrated, the latter is intended to engage the pin 27 as it travels up the elongated section, Coupling by rapid actuation in the depression and prevents it from returning directly to the track below the shoulder 51. With reference to Figure 2 and Figure 3, for more details of the pin guide track a description of the elongated section from the bottom part to the top will be made first. The section 45 has a first shallow portion 53, of constant uniform depth and it will be seen that the bottom floor is provided by a concave shape to exactly match the head 41 of the pin 20, when the latter it engages in the pin guide track. This is also true of the bottom floor for all elongated and return sections. The elongate section 45 also has an ascending portion 55 (as mentioned above) and starting at 57 and ending at 51. Connecting to the shallow portion 53 and the ascending portion 55, there is a portion with a downward slope 59. Finally , from the shoulder of the confinement 51 to the upper part of the elongated section, there is an upper portion 61 that gradually decreases in depth from the confinement shoulder 51 to the upper part of the elongated section. It will therefore be seen that as the pin 27 travels upward in the elongated section 45 of the guide track of the pin 43, a uniform resistance will first be exerted against the pin 27 during its travel in the portion 53. Then, as the pin travels on the portion 59, this resistance will decrease until reaching the meeting point 57 between section 59 and section 55. As the pin travels over section 55, the resistance will increase until the pin reaches and achieves confinement 51, where the sound Clicking or clicking is carried out by indicating to the operator of the moving gate 1 that the ironing is being carried out. The full version of the mobile side is described separately, however for the time being it should be mentioned that if an upward movement is exerted on the mobile side 1 where the pin 27 runs over the portion 61, a new resistance will be exerted on the loaded pin to spring 27, indicating that the pin is moving to the top of the track or elongated section 45. Turning now to the return section 47, as illustrated, it will be seen that to understand a first part 63 that in the embodiment illustrated is perpendicular to the elongated section, and more particularly to the ascending portion 61. The part 63, as illustrated, has an ascending bottom until reaching the second part 65 of the return section that is directed downward and is perpendicular to the horizontal part 63 As illustrated, the part 65 is also parallel to the elongated section 45 by some distance, until it deviates at 67 towards the elongated section 45 to end at the joint 49. Also as illustrated, it will be seen that from the top to the part 65 up to its junction with the elongate section 45, the bottom of the return section 47 has a constant uniform depth. Therefore, as the pin 27 descends on the part 65 of the return section, first the resistance will be constant and then it will change abruptly at the junction 49 where due to the downward step at the junction 49, a slight click will be heard and which exerts a slight effort to cause the pin to traverse the portion 53. Of course, a similar assembly is provided for both operating posts 15 and 17 and at both ends of the bottom rail 21.

The lower part of the operating poles 15, 17 is prevented from extending by a clamp, not shown, which connects the front and rear sides 5, 7 under the spring frame not shown, in the vicinity of the mobile side 1. To avoid that the operating posts 15 and 17 are separated at the top, a coupling is provided between the upper section of the end rails 23 and 25 and the two operating posts 13 and 17. This arrangement first comprises a coupling slide 69, which it is constructed as illustrated in Figure 6 of the drawings, and is disposed on both end rails 23, 25. However, any other type of construction by those skilled in the art can be employed. In the illustrated embodiment, the slider comprises a channel portion 71 and a pair of coupling jaws 73, 75. As illustrated, both operating posts 15, 17 are provided with a coupling member 77 which is fixed to posts 15, 17 in a known manner, such as by the use of threading means 78, the coupling member is formed with a mating head 79 and which is adapted to engage between the jaws 73 and 75. This assembly will obviously prevent any separation of the operating poles 15. , 17 in its upper part. In operation, it will be apparent that the engageable member 77 will slide on the coupling slider 71 while the pin 27 will travel on the track 43 formed with the elongated section 45 and a return section 47. if the intention is to lifting the mobile side 1 from a lower portion to an upper position, it will be seen that the pin will travel over the portions 53, 59, 55, until it engages the shoulder 51. The idea of the various inclinations of parts 55 and 59, consists of in preventing the pin head 41 from traveling to the return section 47 of the track and instead guiding it over the shoulder portion 51, if desired. More particularly, the operation will be more uniform as the pin travels down position 59 until it reaches junction 57. Then, the resistance will increase indicating that the steel is imminent. As soon as the pin travels over the shoulder 51, an abrupt change in depth will cause the spring loaded pin 27 to detach in the bottom bottom portion 61 creating a click sound and the mobile side 1 then locks in the position higher. If it is intended to lower the mobile side 1, first the gate has to be raised beyond its locking position during which a superior resistance against the pin is exerted. This is the first action recommended by the guides. When the upper part of the elongated section is reached, an inward movement must be exerted against the bottom rail 21, to allow the pin to traverse the part 63 during which the resistance continues to increase. That is the second action recommended by the guides. When the head of the pin has to reach the end of part 63, it is impossible to continue the movement inward of rail 21 and consequently this says the operator that it is time to stop holding a lifting effort for a downward movement of the mobile side 1 and also to stop the inward force applied against the rail 21. Since the resistance against the pin 27 is constant, according to the latter travels over part 65 until it meets at junction 49, the downward movement of the mobile side is almost automatic. Again, at junction 49, in the downward direction there is another depth change, which is less than a shoulder 51, to give another click or slither sound announcing to the operator that the door is on its way to the lowermost position . In other words, the gate is ready for a top locked position. It is understood that modifications can be practiced to the illustrated embodiment without departing from the spirit and scope in accordance with the present invention.

Claims

CLAIMS 1.- Device to raise and lower a mobile side of a baby's crib, the mobile side includes two end rails that connect a top rail and a bottom rail, the crib has corner posts that include two operational poles, for mounting the mobile side therebetween, the device comprises: resiliently loaded pin mounts provided at the ends of the rail in the bottom, projections, each having a mating head portion that are provided in a top position of the operating poles , each of the end rails is formed with a coupling slider in an upper portion for coupling the engageable head position of the projection, and mounts which engage the engageable head position of the projection to slide on the coupling slider, each operating post has an integral track guide formed in a lower portion, the track has an elongated vertical section and a section n return which is provided in the upper part of an elongated section as a continuation of the elongated section and which meets the same in a junction near the top of the elongated section, a sharp depression formed in the elongated section between the Union and the upper part of the elongated section that defines a confining shoulder to engage the pin and prevent it from returning directly into the track below the shoulder, mounts that are provided in the elongated section beyond the shoulder confinement and in the return section to exert continuous resistance in the pin assemblies as the latter move toward the return section and into the return section, until they begin moving downward in the return section.
2. Device according to claim 1, wherein the pin assemblies are spring loaded.
3. Device according to claim 2, wherein a perforation is provided at both ends of the bottom rail, each spring loaded pin means comprises a helical spring disposed at the bottom of the bore, a pin with a rounded head having an inner end inserted into the coil spring and ribs provided in the pin, which bear against an upper end of the coil spring and a sleeve at an outlet of the bore to receive the pin in sliding engagement.
4. Device according to claim 1, wherein the coupling slider is formed with two lateral jaws, both adapted to receive the head portion.
5. Device according to claim 1, wherein the elongated section of the track, from the bottom of the upper part has a first shallow constant portion of uniform depth, a second deeper ascending portion and a portion sloping towards down that connects the first and second portions, the second portion of ascent more deep ends in the confining shoulder, the elongated section has a gradually decreasing depth from the confining shoulder to its upper part, thereby exerting a first resistance in the resiliently loaded pin assemblies as the latter move towards the confining shoulder , and exerting a second resistance to the pin mounts resiliently loaded as the latter travel from the confinement shoulder toward the top of the elongated section.
6. Device according to claim 5, wherein the return section comprises a first part at an angle with respect to the elongated section and continuing substantially horizontal to the track at the top of the elongated section, the first part being guide for a second part gathers the elongated section below the confinement shoulder.
7. Device according to claim 6, wherein the first part of the return section has a bottom gradually rising until the second part meets, the second part is uniform in depth until the second portion meets below the confinement shoulder, where the mounts pin are arranged to step steeply down toward the first portion.
8. Device according to claim 7, wherein the first part is substantially perpendicular to the elongated section, the second part is parallel to and then it deviates towards the elongated position, until gathering the same under the confinement shoulder.
9. Device according to claim 8, wherein the connection is formed to constitute a step down.