EP3225130B1

EP3225130B1 - Foldable furniture with a locking hinge assembly

Info

Publication number: EP3225130B1
Application number: EP16194766.8A
Authority: EP
Inventors: Wen-Sheng Lin
Original assignee: Zhuhai Shichang Metals Ltd
Current assignee: Zhuhai Shichang Metals Ltd
Priority date: 2016-05-27
Filing date: 2016-10-20
Publication date: 2018-12-19
Anticipated expiration: 2036-10-20
Also published as: EP3225130A1; TR201900339T4; ES2704168T3; PL3225130T3

Description

FIELD

The present invention relates to furniture, like a table or bench, with a locking hinge assembly for automatically disengaging a locking feature of a hinge assembly.

BACKGROUND AND SUMMARY

A conventional table is available for providing a support effect, thereby facilitating the user using the table. However, the conventional table has a fixed structure and cannot be folded when not in use, thereby increasing space of storage, and thereby causing inconvenience in storage, package and transportation.
WO-A-2004028297 discloses a folding table having a two-stage folding mechanism. The folding table includes a table top divided into a first planar portion and a second planar portion. A pair of side rails is connected to each planar portion. A foldable leg and support brace is connected to each planar portion. A hinge assembly is provided disposed between the first planar portion and the second planar portion. The hinge assembly includes a hinge pin, a first hinge connector and a second hinge connector. The first hinge connector has a cam portion. A locking pin is disposed through a slot in the second hinge connector. A lock actuating mechanism may be used to move the locking pin in the slot between the locked and unlocked position. In one embodiment, the lock actuating mechanism includes a handle coupled to the locking pin and a spring biased against the locking pin.
The objective of the present invention is to provide a furniture having a hinged connection between adjacent table top surfaces that includes a latch that may be placed into a stowed or a use position and wherein the latch is operated automatically by rotating one of the table legs.
The present invention provides a furniture with a locking hinge assembly according to claim 1. Preferred features are set out in the dependent claims.
In accordance with the present invention, there is provided a collapsible furniture, such as a foldable table or bench. The furniture includes a furniture support surface including a first support surface half and a second support surface half, the first and second support surface halves each having a substantially planar top surface, a bottom surface opposite the top surface, an inner edge, and an opposing outer edge which is substantially parallel to the inner edge. Each half has a first and a second side frame member. For instance, the furniture may include first and second table top surfaces or first and second bench seating surfaces.
The furniture also includes a first and second collapsible leg attached to the bottom surface of each of the support surface halves. Each leg is operable to collapse independently of the other leg and is movable between an extended position and a stowed position. Moreover, each leg has a crossbar mounted between side frame members. The crossbar rotates as the respective leg is pivoted from the extended position to the stowed position.
The furniture is combined with a locking hinge assembly, which pivotally connects together the first and second support surface halves and automatically disengages a locking feature when at least one of the collapsible legs is moved from the extended position to the stowed position. This hinge assembly includes a pawl pin and a first hinge member having a notch for selectively engaging the pawl pin, and a second hinge member which is pivotally connected to the first hinge member. The second hinge member includes a slot configured to receive the pawl pin.
The hinge assembly also includes a hinge rod that pivotally connects the first and second hinge members together and extends across the width of the support surface halves.
The hinge assembly pawl pin has opposite ends and a side surface. The pawl pin is disposed in the slot of the second hinge member and operable to slide in the slot between a first position and a second position. The pawl pin engages the notch of the first hinge member when in the first position, thereby preventing rotation of the first hinge member with respect to the second hinge member. The pawl pin disengages the notch of the first hinge member when in the second position, thereby allowing rotation of the first hinge member with respect to the second hinge member.
The locking hinge assembly also includes a cable having a first end and a second end. The first end of the cable is mounted to the crossbar of the at least one collapsible leg, The second end of the cable is secured to the pawl pin, such that moving the at least one collapsible leg from an extended position to a stowed position causes movement of the second end of the cable, thereby moving the pawl pin from the first position to the second position to disengage the pawl pin from the notch.
In addition, the furniture may include a third furniture leg. This third leg is mounted to, and extends down from, the hinge rod.
Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

Further advantages of the invention are apparent by reference to the detailed description in conjunction with the figures, wherein elements are not to scale so as to more clearly show the details, wherein like reference numbers indicate like elements throughout the several views, and wherein:

FIG. 1 is a perspective view of a foldable table with collapsible legs and a hinge assembly according to the present invention;
FIG. 2 is a perspective view of a bottom surface of the table depicted in FIG. 1 with support units shown in an extended position;
FIG. 3 is an enlarged side view of a first end of the hinge assembly depicted in FIG. 2;
FIG. 4 is an enlarged side view of a second end of the hinge assembly depicted in FIG. 2;
FIG. 5 is a perspective view of the foldable table depicted in FIG. 1 with one support unit shown in a stowed position;
FIG. 6 is an enlarged side view of a first end of the hinge assembly depicted in FIG. 5;
FIG. 7 is an enlarged side view of a second end of the hinge assembly depicted in FIG. 5;
FIG. 8 is an exploded view depicting the hinge assembly shown in FIG. 2;
FIG. 9 is a perspective view of the foldable table depicted in FIG. 1 in a closed position.
FIG. 10 is a perspective view of a foldable bench with collapsible legs and a hinge assembly according to another embodiment of the present invention;
FIG. 11 is a perspective view of a bottom surface of the bench depicted in FIG. 10 with support units shown in an extended position;
FIG. 12 is an enlarged side view of a first end of the hinge assembly depicted in FIG. 11;
FIG. 13 is an enlarged side view of a second end of the hinge assembly depicted in FIG. 11;
FIG. 14 is a perspective view of the foldable bench depicted in FIG. 10 with one support unit shown in a stowed position;
FIG. 15 is an enlarged side view of a first end of the hinge assembly depicted in FIG. 14;
FIG. 16 is an enlarged side view of a second end of the hinge assembly depicted in FIG. 14;
FIG. 17 is an exploded view depicting the hinge assembly shown in FIG. 11; and
FIG. 18 is a perspective view of the foldable bench depicted in FIG. 10 in a closed position.

DETAILED DESCRIPTION

A first preferred embodiment relates to a center-folding table having a locking center hinge and collapsible legs. The center-folding table may be placed in an extended or use position and also in a stowed position. In the use position, the locking hinge located between two tabletop halves ensures that the table is not inadvertently collapsed. The present invention allows this locking hinge to be disengaged automatically by simply rotating one of the legs from the extended position to the stowed position. The locking hinge is engaged by rotating the leg from the stowed position to the extended position.
Referring to the drawings, there is provided in FIGS. 1 and 2 a center-folding table 5 in accordance with one embodiment of the present invention. The table 5 comprises two table boards 1 pivotally connected with each other. Each of the two table boards 1 has a bottom formed with a receiving space 11. The receiving space 11 of each of the two table boards 1 has two sides each provided with a support tube 14 secured on each of the two table boards 1 by a plurality of screws.
The table 5 also includes two support units 4, which are each foldably mounted on a respective one of the two table boards 1. Each of the support units 4 includes a support stand 2 that is mounted in the receiving space 11 of a respective one of the two table boards 1. As shown in FIGS. 2, 5 and 8, each support stand 2 has a crossbar member 80 that spans the width of the table 5 and has opposing ends 82 that extend through openings 84 in the support tubes 14. The openings 84 are sized and configured to permit the crossbar 80 to rotate within the opening.
Each support unit 4 also includes a support member 3, which includes a substantially straight support bar 30 mounted to a substantially V-shaped extension bar 31. The opposite end of the extension bar 31 is pivotally mounted at a mediate portion of the support stand 2. The opposite end of the support bar 30 is pivotally mounted to a portion of a hinge assembly 12 connecting the two table boards 1, as discussed below. The support units 4 are configured to rotate from an extended position, shown in FIG. 2, to a stowed position, shown in FIG. 5.
The two table boards 1 are pivotally connected with each other by two pivot members 12, which are also referred to herein as hinge assemblies 12, and are configured to rotate from an extended position, shown in FIG. 1, to a stowed position, shown in FIG. 9. As shown in FIGS. 2, 5 and 8, each of the hinge assemblies 12 includes two hinge members 50 and 52 pivotally connected together by a hinge pin 56 which passes through apertures 50a and 52a in circular tabs 50c and 52c of the hinge members 50 and 52. A single pin 56 spans the width of the table, along the intersection of the two table boards 1, and an end of the pin connects together each of the hinge assemblies 12. The support bar 30 mentioned above is pivotally mounted to the pin 56.
On either side of the hinge member 52 are slots 52b through which passes a pawl pin 58. The pawl pin 58 also passes through slots 52b on either side of the hinge member 52. The pawl pin 58 is operable to slide laterally in the slots 52b between a first position and a second position. As shown best in FIG. 4, in the first position, the pawl pin 58 engages notches 50b in the tabs 50c of the hinge member 50, thereby preventing rotation of the hinge member 50 with respect to the hinge member 52. In the second position, shown in FIG. 7, the pawl pin 58 disengages the notches 50b, thereby allowing rotation of the hinge member 50 with respect to the hinge member 52.
A spring 62 is connected to the hinge member 52 by way of a spring pin 60. The spring pin 60 passes through apertures 52d in the hinge member 52 (FIG 8) and through a coil 62c formed in the spring 62. The spring 62 has spring arms 62a extending from the coil 62c that engage the pawl pin 58. Due to tension in the coil 62c, the spring arms 62a constantly press against the pawl pin 58, thereby urging the pawl pin 58 toward the first position in the slots 52b.
The table 5 also includes a cable 86, which is disposed along the length of one of the table boards 1 parallel with the respective support tube 14 and connects the pawl pin 58 to the crossbar 80. The cable 86 enables the pawl pin to be moved from the first position to the second position automatically (and vice versa) when the support stand 2 is rotated.
As shown in FIGS. 6 and 7, the cable 86 includes a first end 88A and a second end 88B. The first end 88A is mounted to the crossbar member 80 proximate one of the ends 82. The cable 86 is fixedly mounted to the crossbar member 80, such that rotational movement of the crossbar also causes the first end 88A of the cable to move. As shown in FIG. 2-4, when the support stand 2 is in an extended position, the end 88A of the cable 86 is disposed along a rightward-facing surface of the crossbar 80, the pawl pin 58 is in the first position engaging the notch 50b, and rotation of the hinge members 50 and 52 with respect to one another is prevented. On the other hand, as shown in FIGS. 5-7, when the support stand 2 is in a stowed position, the end 88A of the cable 86 is disposed along a downward-facing surface of the crossbar 80, the pawl pin 58 is in the second position not engaging the notch 50b, and rotation of the hinge members 50 and 52 with respect to one another is permitted. Accordingly, the pawl pin 58 may be disengaged automatically by simply rotating one of the support stands 2 from an extended position to a stowed position and engaged by rotating the support stand from the stowed position to the extended position.
A second preferred embodiment relates to a center-folding bench that may be placed in an extended or use position and also in a stowed position. In the use position, the locking hinge located between two benchtop halves ensures that the bench is not inadvertently collapsed. The present invention allows this locking hinge to be disengaged automatically by simply rotating one of the legs from the extended position to the stowed position. The locking hinge may be engaged by rotating the leg from the stowed position to the extended position.
Referring to the drawings, there is provided in FIGS. 10 and 11 a center-folding bench 105 in accordance with one embodiment of the present invention. The bench 105 comprises two seating surface halves 101 pivotally connected with each other. Each of the two seating surface halves 101 has a bottom formed with a receiving space 111. The receiving space 111 of each of the seating surface halves 101 has two sides each provided with a frame member 114 secured on each of the two seating surface halves 101 by a plurality of screws.
The bench 105 also includes two support units (leg assemblies) 104, which are each foldably mounted on a respective one of the two seating surface halves 101. Each of the support units 104 includes a leg 102 that is mounted in the receiving space 111 of a respective one of the seating surface halves 101. As shown in FIGS. 11 and 14, each leg 102 has a crossbar member 180 that spans the width of the bench 105 and has opposing ends 182 that extend through openings 184 in the frame members 114. The openings 184 are sized and configured to permit the crossbar 180 to rotate within the opening.
Each support unit 104 also includes at least one support member 103, and preferably two support members 103. Each support member 103 includes a folding leg brace 130, having first and second ends. The first end of the folding leg brace 130 is pivotally mounted to a portion of the leg 102. The second end of the folding leg brace 130 is pivotally mounted to a portion of one of the frame members 114 secured to the seating surface halves 101. The support units 104 are configured to rotate from an extended position, shown in FIG. 11, to a stowed position, shown in FIG. 14.
The two seating surface halves 101 are pivotally connected with each other by two pivot members 112, which are also referred to herein as hinge assemblies 112, and are configured to rotate from an extended position, shown in FIG. 10, to a stowed position, shown in FIG. 18. As shown in FIGS. 11, 14 and 17, each of the hinge assemblies 112 includes two hinge members 150 and 152 pivotally connected together by a hinge pin 156 which passes through apertures 150a and 152a in circular tabs 150c and 152c of the hinge members 150 and 152. A single pin 156 spans the width of the bench, along the intersection of the two seating surface halves 101, and an end of the pin connects together each of the hinge assemblies 112.
The bench 105 also preferably includes a third leg 108 which is centrally located about the intersection of the two seating surface halves 101. This third leg 108 is attached to the hinge pin or rod 156 which extends across the width of the bench. The third leg 108 may also be connected to both of the seating surface halves 101 by a plurality of folding leg braces 110. These support members 110 are pivotally connected to the third leg 108 and are preferably both pivotally and slidingly connected to the respective seating surface halves 101.
On either side of the hinge member 152 are slots 152b through which passes a pawl pin 158. The pawl pin 158 also passes through slots 152b on either side of the hinge member 152. The pawl pin 158 is operable to slide laterally in the slots 152b between a first position and a second position. As shown best in FIG. 13, in the first position, the pawl pin 158 engages notches 150b in the tabs 150c of the hinge member 150, thereby preventing rotation of the hinge member 150 with respect to the hinge member 152. In the second position, shown in FIG. 16, the pawl pin 158 disengages the notches 150b, thereby allowing rotation of the hinge member 150 with respect to the hinge member 152.
A spring 162 is connected to the hinge member 152 by way of a spring pin 160. The spring pin 160 passes through apertures 152d in the hinge member 152 (FIG 17) and through a coil 162c formed in the spring 162. The spring 162 has spring arms 162a extending from the coil 162c that engage the pawl pin 158. Due to tension in the coil 62c, the spring arms 162a constantly press against the pawl pin 158, thereby urging the pawl pin 158 toward the first position in the slots 152b.
The bench 105 also includes a cable 186, which is disposed along the length of one of the seating surface halves 101 parallel with the respective support tube 114 and connects the pawl pin 158 to the crossbar 180. The cable 186 enables the pawl pin to be moved from the first position to the second position automatically (and vice versa) when the support stand 102 is rotated.
As shown in FIGS. 15 and 16, the cable 186 includes a first end 188A and a second end 188B. The first end 188A is mounted to the crossbar member 180 proximate one of the ends 182. The cable 186 is fixedly mounted to the crossbar member 180, such that rotational movement of the crossbar also causes the first end 188A of the cable to move. As shown in FIG. 11 - 13, when the support stand 102 is in an extended position, the end 188A of the cable 186 is disposed along a rightward-facing surface of the crossbar 180, the pawl pin 158 is in the first position engaging the notch 150b, and rotation of the hinge members 150 and 152 with respect to one another is prevented. On the other hand, as shown in FIGS. 14 - 16, when the support stand 102 is in a stowed position, the end 188A of the cable 186 is disposed along a downward-facing surface of the crossbar 180, the pawl pin 158 is in the second position not engaging the notch 150b, and rotation of the hinge members 150 and 152 with respect to one another is permitted. Accordingly, the pawl pin 154 may be disengaged automatically by simply rotating one of the support stands 102 from an extended position to a stowed position and engaged by rotating the support stand from the stowed position to the extended position.

Claims

A furniture with a locking hinge assembly (12;112) for pivotally connecting together furniture support surface halves (1;101) and for automatically disengaging a locking feature of the hinge assembly (12;112) when a furniture leg (2;102) is pivoted from an extended position to a stowed position, the furniture comprising:
first and second support surface halves (1;101), each support surface half (1;101) having a first side frame member (14;114) mounted to the support surface half (1;101) and disposed along a first edge thereof and a second side frame member (14;114) mounted to the support surface half (1;101) and disposed along a second edge thereof;

a first furniture leg (2;102) having a first crossbar (80;180) rotatably mounted between the first and second side frame members (14;114) of the first support surface half (1;101);

a second furniture leg (2;102) having a second crossbar (80;180) rotatably mounted between the first and second side frame members (14;114) of the second support surface half (1;101);

a first hinge member (50;150) mounted to the first support surface half (1;101) and having a notch (50b;150b) for selectively engaging a pawl pin (58;158);

a second hinge member (52;152) mounted to the second support surface half (1 ;101) and pivotally connected to the first hinge member (50;150) for pivotally connecting together the support surface halves (1;101), the second hinge member (52;152) having a slot (52b;152b) configured to receive the pawl pin (58;158);

the pawl pin (58;158) disposed in the slot (52b;152b) of the second hinge member (52;152) and operable to slide in the slot (52b;152b) between a first position and a second position,
wherein the pawl pin (58;158) engages the notch (50b;150b) of the first hinge member (50;150) when in the first position, thereby preventing rotation of the first hinge member (50;150) with respect to the second hinge member (52;152), and

wherein the pawl pin (58;158) disengages the notch (50b;150b) of the first hinge member (50;150) when in the second position, thereby allowing rotation of the first hinge member (50;150) with respect to the second hinge member (52;152);

a cable (86;186) having a first end (88A;188A) and a second end (88B;188B), wherein the first end (88A;188A) of the cable (86;186) is secured to a portion of the first furniture leg (2;102) and the second end (88B;188B) of the cable (86;186) is secured to the pawl pin (58;158), such that moving the first furniture leg (2;102) from an extended position to a stowed position causes movement of the second end (88B;188B) of the cable (86;186), thereby moving the pawl pin (58;158) from the first position to the second position to disengage the pawl pin (58;158) from the notch (50b;150b); and

a hinge rod (56;156) that extends across the width of the support surface halves (1;101) and pivotally connects the first and second hinge members (50,52;150,152) together; wherein

the first end (88A;188A) of the cable (86;186) is mounted to the first crossbar (80; 180).
The furniture of claim 1 further comprising a spring member (62;162) having spring arms (62a;162a) that engage the pawl pin (58;158) and urge the pawl pin (58;158) toward the first position.
The furniture of claim 1 or claim 2, wherein the first and second hinge members (50,52;150,152) are configured for placement adjacent the first edge of the support surface halves (1;101), and further comprising third and fourth hinge members (50,52;150,152) that are pivotally connected together and configured for placement adjacent the second edge of the support surface halves (1 ;101).
The furniture of claim 3 wherein the hinge rod (56;156) pivotally connects the third and fourth hinge members (50,52;150,152) together.
The furniture of any preceding claim, wherein the furniture comprises a table (5), and the first and second support surface halves (1) each comprise a table top half.
The furniture of any one of claims 1 to 4, wherein the furniture comprises a bench (105), and the first and second support surface halves (101) each comprise a bench seating surface.
The furniture of any preceding claim, wherein the first end (88A; 188A) of the cable (86; 186) is disposed inside one of the side frame members (14; 114).
The furniture of any preceding claim further comprising a first support member (3;103) pivotably mounted to the first furniture leg (2;102) and a second support member (3;103) pivotably mounted to the second furniture leg (2;102).
The furniture of any preceding claim wherein the first end (88A;188A) of the cable (86;186) is secured to the first crossbar (80;180), such that moving the first furniture leg (2;102) from an extended position to a stowed position causes rotation of the first crossbar (80;180), thereby causing movement of the first end (88A;188A) of the cable (86;186) and corresponding movement of the second end (88B;188B) of the cable (86;186).
The furniture of any preceding claim, further comprising a third furniture leg (108) mounted to and extending from the hinge rod (156).