REMOVABLE COMPACT HINGE AND METHOD OF USE

Abstract

Disclosed is a removable compact hinge for pivotal connection between a furniture piece and a door. The apparatus incorporates a clamping attachment mechanism in order to avoid permanent mounting holes and to provide quick installation and adjustable installation location. The apparatus comprises a hinge cup pivotally connected to an attachment mechanism ion with a hinge arm. The attachment mechanism comprises a base slidably engaged with a sliding body, the sliding body including an adjustable pressure plate. A lever works with a set of links to slide the sliding body with respect to the base towards the furniture piece and mechanically and releasably clamp the attachment mechanism to the furniture piece without the use of typical wood screws thereby preserving the integrity of the furniture piece. The apparatus further includes adjustability in the vertical, horizontal, and lateral directions.

Claims

1. A removable attachment apparatus for mounting a hinge body to a furniture piece, the apparatus comprising: a base pivotally connected to a lever at a first pivot point; a dog slidingly engaged to the base and pivotally connected to a set of links at a second pivot point; a pressure plate adjustably connected to the dog; and, wherein the dog is configured to slide along the base upon rotation of the lever about the first pivot point.

2. The removable compact hinge apparatus of claim 1 further comprising: the set of links pivotally connected to the lever at a third pivot point.

3. The removable compact hinge apparatus of claim 2 further comprising: a hinge cup configured to be affixed to a singing door of a cabinet carcass.

4. The removable compact hinge apparatus of claim 3 further comprising: a hinge arm pivotally connected to the hinge cup and adjustably connected to a base.

5. The removable compact hinge apparatus of claim 1 wherein the base further comprises: a flat body; a set of flanges extending from the flat body; and, a set of extensions pivotally connected to the lever.

6. The removable compact hinge apparatus of claim 1 wherein the base further comprises: a set of rails for slidable engagement with the dog; a set of slots formed in the set of rails for releasable engagement with the dog; and, a set of tabs extending from the set of rails for releasable engagement with the dog.

7. The removable compact hinge apparatus of claim 1 wherein the dog further comprises: a jaw portion extending from a transverse portion; a set of guide holes through the jaw portion for slidable engagement with the pressure plate; and, a threaded hole through the jaw portion engaged with a thumbscrew.

8. The removable compact hinge apparatus of claim 1 wherein the dog further comprises: a set of arms for slidable engagement with the base; a set of slots formed in the set of arms for releasable engagement with the base; and, a set of tabs formed in the set of arms for releasable engagement with the base.

9. The removable compact hinge apparatus of claim 1 further comprising: a thumbscrew threadably engaged with the dog and rotatably connected to the pressure plate; a shoulder, formed in the thumbscrew, configured to abut the pressure plate; and, wherein upon rotation of the thumbscrew, the shoulder urges the pressure plate.

10. The removable compact hinge apparatus of claim 1 further comprising: a vertical adjustment cam comprising an offset cam extension extending from a cam shoulder; an adjustment plate slidingly engaged with the base; a follower hole in the adjustment plate and engaged with the cam shoulder; a pivot hole in the base and engaged with the offset cam extension; and, wherein upon rotation of the vertical adjustment cam, the cam shoulder urges the adjustment plate and the hinge arm to move in a vertical direction relative to the base.

11. The removable compact hinge apparatus of claim 1 further comprising: a lateral adjustment screw comprising a head extending from a threaded section; an adjustment plate connected to the base; a slot in the adjustment plate engaged with the head; the threaded section engaged with a threaded hole in the hinge arm; and, wherein upon rotation of the lateral adjustment screw, the head urges the hinge arm to move in a lateral direction relative to the adjustment plate.

12. The removable compact hinge apparatus of claim 1 further comprising: a horizontal adjustment cam comprising an offset cam extension extending from a cam shoulder; an adjustment plate slidingly engaged with the hinge arm; a follower hole in the hinge arm and engaged with the cam shoulder; a pivot hole in the adjustment plate and engaged with the offset cam extension; and, wherein upon rotation of the horizontal adjustment cam, the cam shoulder urges the hinge arm to move in a horizontal direction relative to the adjustment plate.

13. A method of a removable attachment apparatus for mounting a hinge body to a furniture piece, the method comprising: pivotally connecting a base to a lever at a first pivot point; slidingly engaging a dog to the base; pivotally connecting the dog to a set of links at a second pivot point; adjustably connecting a pressure plate to the dog; and, sliding the dog along the base upon rotation of the lever about the first pivot point.

14. The method of claim 13 further comprising: pivotally connecting the set of links to the lever at a third pivot point.

15. The method of claim 14 further comprising: affixing a hinge cup to a swinging door of a cabinet carcass.

16. The method of claim 15 further comprising: pivotally connecting a hinge arm to the hinge cup; and, adjustably connecting the hinge arm to a base.

17. The method of claim 13 further comprising: providing a flat body; extending a set of flanges from the flat body; and, pivotally connecting a set of extensions to the lever.

18. The method of claim 13 further comprising: slidably engaging a set of rails of the base with the dog; forming a set of slots in the set of rails; releasably engaging the set of slots with the dog; extending a set of tabs from the set of rails; and, releasably engaging the set of tabs with the dog.

19. The method of claim 13 further comprising: extending a jaw portion of the dog from a transverse portion; slidably engaging a set of guide holes through the jaw portion with the pressure plate; and, engaging a threaded hole through the jaw portion with a thumbscrew.

20. The method of claim 13 further comprising: slidably engaging a set of arms of the dog with the base; forming a set of slots in the set of arms; releasably engaging the set of slots with the base; forming a set of tabs in the set of arms; and, releasably engaging the set of tabs with the base.

21. The method of claim 13 further comprising: threadably engaging a thumbscrew with the dog; rotatably connecting the thumbscrew to the pressure plate; forming a shoulder in the thumbscrew that abuts the pressure plate; and, urging the pressure plate with the shoulder upon rotating the thumbscrew.

22. The method of claim 1 further comprising: providing a vertical adjustment cam that includes an offset cam extension that extends from a cam shoulder; slidingly engaging an adjustment plate with the base; providing a follower hole in the adjustment plate; engaging the follower hole with the cam shoulder; providing a pivot hole in the base; engaging the pivot hole with the offset cam extension; and, urging the adjustment plate and the hinge arm with the cam shoulder to move in a vertical direction relative to the base upon rotation of the vertical adjustment cam.

23. The method of claim 1 further comprising: providing a lateral adjustment screw that includes a head extending from a threaded section; connecting an adjustment plate to the base; engaging a slot in the adjustment plate with the head; engaging the threaded section with a threaded hole in the hinge arm; and, urging the hinge arm with the head to move in a lateral direction relative to the adjustment plate upon rotation of the lateral adjustment screw.

24. The method of claim 1 further comprising: providing a horizontal adjustment cam that includes an offset cam extension extending from a cam shoulder; slidingly engaging an adjustment plate with the hinge arm; providing a follower hole in the hinge arm; engaging the follower hole with the cam shoulder; providing a pivot hole in the adjustment plate; engaging the pivot hole with the offset cam extension; and, urging the hinge arm with the cam shoulder to move in a horizontal direction relative to the adjustment plate upon rotation of the horizontal adjustment cam.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The disclosed embodiments will be described with reference to the accompanying drawings. Like parts in different drawings are referenced by the same number.

[0010] FIG. 1A is an isometric view of a preferred embodiment in a locked position.

[0011] FIG. 1B is a plan view of a preferred embodiment in a locked position.

[0012] FIG. 2A is an exploded isometric view of a preferred embodiment.

[0013] FIG. 2B is an exploded isometric view of a preferred embodiment.

[0014] FIG. 2C is an exploded isometric view of a preferred embodiment.

[0015] FIG. 3A is an isometric view of a base of a preferred embodiment.

[0016] FIG. 3B is a plan view of a base of a preferred embodiment

[0017] FIG. 4 is an isometric view of a dog of a preferred embodiment.

[0018] FIG. 5 is an isometric view of a pressure plate of a preferred embodiment.

[0019] FIG. 6 is an isometric view of a lever of a preferred embodiment.

[0020] FIG. 7A is an isometric view of a link of a preferred embodiment.

[0021] FIG. 7B is an isometric view of a link of a preferred embodiment.

[0022] FIG. 8A is an isometric view of a preferred embodiment in an unlocked position.

[0023] FIG. 8B is a plan view of a preferred embodiment in an unlocked position.

[0024] FIG. 8C is a plan view of a preferred embodiment in a locked position.

DETAILED DESCRIPTION

[0025] Referring to FIGS. 1A, 1B and 2A, removable hinge 100 comprises hinge cup 102 pivotally connected to attachment mechanism 104 by hinge arm 106. Typically, hinge cup 102 is affixed to cabinet door 103 with screws through mounting holes 107. Attachment mechanism 104 is removably attached to cabinet carcass 105 as will be described below. Removable hinge 100 is repositionable between a locked position to cabinet carcass 105 and an unlocked position. In the locked position, the attachment mechanism is securely affixed to the cabinet carcass. In the unlocked position, the attachment mechanism can be removed from attachment to the cabinet carcass. In a preferred embodiment, the components of removable hinge 100 are typically constructed of metal such as cast aluminum or steel alloy plate stock.

[0026] Attachment mechanism 104 comprises base 110, dog 112, pressure plate 114, lever 116, and opposing links 118 and 119. Base 110 is attached to cabinet carcass 105 at faces 111 and 113. Base 110 is slidably engaged with dog 112. Thumbscrew 120 is threaded into dog 112 at hole 166. Thumbscrew 120 includes shoulder 121 which abuts washer 101. The thumbscrew also includes end rivet 131. End rivet 131 fits into mounting hole 176 in pressure plate 114 and is secured by peening during manufacture.

[0027] Pressure plate 114 includes stanchions 174 and 175 which fit into guide holes 164 and 165. The clearance level between the stanchions and the guide holes is about 1/16 and should allow for axial movement of the stanchions without binding. Lever 116 is pivotally attached to base 110 with pins 126 and 127. Lever 116 is pivotally attached to links 118 and 119 with pins 122 and 123. Links 118 and 119 are pivotally attached to dog 112 with pins 124 and 125.

[0028] Referring to FIGS. 2A, 2B, and 2C, the horizontal, vertical, and lateral adjustment mechanisms will be described. Adjustment plate 200 includes positioning extensions 204 and 226. Positioning extension 204 abuts slot 146 in base 110. Positioning extension 226 abuts slot 145 in base 110. Adjustment plate 200 includes pivot hole 241 and follower hole 244. Adjustment plate 200 also includes alignment slot 202 which is positioned between positioning extensions 226. Alignment slot 202 is open on one end and includes retaining shoulder 227. The top surface of adjustment plate 200 also includes guide slot 248.

[0029] Hinge arm 106 is generally sized to fit over and retain adjustment plate 200. Hinge arm 106 includes sides 229 and 231 which extend over adjustment plate 200. Guide rail 246 is sized to fit within guide slot 248 of adjustment plate 200. Hinge arm 106 includes threaded hole 228 for receipt of the threads of lateral adjustment screw B. Hinge arm 106 includes generally square access hole 240 and oblong follower hole 242. Hinge arm 106 also includes step down 245 which is designed to engage guide shelf 243 of adjustment plate 200.

[0030] Hinge arm 106 includes extension arm 254. Extension arm 254 is manufactured to include pivot hole 260. Pivot hole 260 is designed to engage pin 250 of hinge cup 102. Extension arm 254 includes cam surfaces 256 and 258. Cam surfaces 256 and 258 are sized to engage spring arms 264 and 266 of bias spring 262.

[0031] Lateral adjustment screw B is threaded through threaded hole 228 of the hinge arm. Head 230 of the adjustment screw fits within alignment slot 202 and engages retaining shoulder 227. Engagement of head 230 and retaining shoulder 227 restrains relative vertical movement between hinge arm 106 and adjustment plate 200, but allows horizontal movement between the two components.

[0032] Vertical adjustment cam A is sized to fit through follower hole 244 and engage pivot hole 142 in base 110. Cam shoulder 232 engages the interior surface of follower hole 244. Offset cam extension 234 is sized to fit within pivot hole 142 while allowing free rotation between the two. During manufacture, offset cam extension 234 is peened after insertion into pivot hole 142 to prevent extraction. Offset cam extension 234 is intentionally located flush with an edge of cam shoulder 232.

[0033] Horizontal adjustment cam C includes cam shoulder 236. Cam shoulder 236 is sized to fit within follower hole 242. Horizontal adjustment cam C includes offset cam extension 238. Offset cam extension 238 is sized to fit within pivot hole 241 to allow free rotation. During manufacture offset cam extension 238 is peened after insertion into pivot hole 241 to prevent extraction. Offset cam extension 238 is intentionally located flush with an edge of cam shoulder 236.

[0034] In use, lateral adjustment screw B is rotated whereby retaining head 230 moves retaining shoulder 227 and results in lateral movement, in direction 206, of hinge arm 106 relative to adjustment plate 200.

[0035] Vertical adjustment cam A is rotated in access hole 240, which results in cam shoulder 232 engaging follower hole 244. Follower hole 244 and adjustment plate 200 are moved vertically, sliding positioning extensions 226 and 204 vertically within slots 145 and 146 of base 110. The positioning extensions prevent angular movement of adjustment plate 200 and hinge arm 106 with respect to base 110. Adjustment plate 200 abuts sides 229 and 231 thereby moving hinge arm 106 with adjustment plate 200 vertically with respect to base 110, in direction 208.

[0036] Horizontal adjustment cam C is rotated whereby offset cam extension 238 rotates in pivot hole 241. Cam shoulder 236 engages follower hole 242, thereby moving hinge arm 106 horizontally with respect to adjustment plate 200 in direction 210. Alignment slot 202 allows retaining head 230 to also move horizontally with respect to adjustment plate 200. Sides 229 and 231 prevent rotational movement of hinge arm 106 with respect to adjustment plate 200.

[0037] Referring to FIGS. 1A, 2B, and 2C, the connection of hinge cup 102 to hinge arm 106 will be described. Hinge cup 102 comprises cup body 263 including coil indentions 268 and 270. Hinge cup 102 includes mounting tabs 259 and 261. Mounting tabs 259 and 261 include mounting holes 107 for securing the hinge cup to a cabinet door. Hinge cup 102 includes through hole 252 in which is positioned pin 250. Pin 250 also engages pivot hole 260 and retains extension arm 254 in the hinge cup.

[0038] Coil indentions 268 and 270 form a housing for bias spring 262. Bias spring 262 includes spring arms 264 and 266. Spring arms 264 and 266 engage cam surfaces 256 and 258 respectively. The spring arms provide a greater bias to the cam surfaces when the hinge is in a closed position than they do when the hinge is in open position.

[0039] Referring to FIGS. 3A and 3B, base 110 includes flanges 132 and 133 which extend at right angles from bridge 130. Bridge 130 includes a centrally located pivot hole 142 sized to engage adjustment cam A. A set of extensions 129 and 134 extend from bridge 130 opposite flanges 132 and 133. Extension 129 includes pivot hole 128. Extension 134 includes pivot hole 135. Pivot hole 135 is sized to engage pin 127. Pivot hole 128 is sized to engage pin 126. Rails 136 and 149 extend from opposite edges of bridge 130. Rail 136 includes tab 138 and slot 140. Rail 149 includes tab 148 and slot 141. Slot 145 is positioned between flanges 132 and 133 along an edge of bridge 130. Slot 146 is a generally rectangular shaped cut-out in bridge 130.

[0040] As shown in FIGS. 2A and 4, dog 112 is comprised of transverse portion 150 and jaw portion 152. Jaw portion 152 includes guide holes 164 and threaded hole 166. Threaded hole 166 is sized to engage the thumbscrew. Extending from transverse portion 150 are arms 154 and 155. Arm 154 includes slot 160, tab 162, and extension 156. Extension 156 includes pivot hole 158. Pivot hole 158 is sized to engage pin 124. Arm 154 is slidably engaged with rail 149. Slot 160 is sized to slidably engage tab 148. Tab 162 is sized to slidably engage slot 141. Arm 155 includes slot 161, tab 163 and extension 159. Extension 159 includes pivot hole 157. Pivot hole 157 is sized to engage pin 125. Arm 155 and is slidably engaged with rail 136. Slot 161 is sized to slidably engage tab 138. Tab 163 is sized to slidably engage slot 140.

[0041] Referring to FIGS. 2A and 5, pressure plate 114 is shown. Pressure plate 114 is generally rectangular and comprises face 170 and includes stanchions 174 and 175 extending from opposite sides. Stanchions 174 and 175 are sized to slidably engage guide holes 164 and 165. Pressure plate 114 further includes hole 176. Thumbscrew 120 engages hole 176 such that thumbscrew 120 is free to rotate with respect to pressure plate 114 while shoulder 121 abuts washer 101 adjacent pressure plate 114. Face 170 includes a recess space surrounding hole 168 to allow attachment of the thumbscrew to the pressure plate without the thumbscrew extending beyond the plane of face 170. Face 170 further includes opposing triangular cleats 172. In a preferred embodiment, cleats 172 are integrally formed with face 170. In an alternate embodiment, cleats 172 are comprised of flexible plastic or rubber materials and are affixed to face 170 with a suitable adhesive. In another embodiment, the face includes a knurled surface.

[0042] As shown in FIGS. 2A and 6, lever 116 comprises arms 182 and 183 extending from bridge 180. Arm 182 includes pivot hole 184 and pivot hole 186. Arm 183 includes pivot hole 185 and pivot hole 187. Pivot holes 184 and 185 are aligned with and sized to engage pins 126 and 127, respectively. Pivot holes 186 and 187 are aligned with and sized to engage pins 122 and 123, respectively. Lever 116 is pivotally connected to base 110 by pin 126 through pivot holes 184 and 128 and by pin 127 through pivot holes 185 and 135.

[0043] Referring to FIGS. 4 and 7A, link 118 is shown. Link 118 comprises body 190 integrally formed with standoff 192. Standoff 192 is generally cylindrical and includes a centrally positioned pivot hole 194. Pivot hole 194 is sized to engage pin 122. Body 190 includes pivot hole 196. Pivot hole 196 is sized to engage pin 124. Body 190 forms stop surface 198. Lever 116 is pivotally connected to link 118 by pin 122 through pivot holes 194 and 186. Link 118 is pivotally connected to dog 112 by pin 124 through pivot holes 196 and 158.

[0044] Referring to FIGS. 4 and 7B, link 119 is shown. Link 119 comprises body 191 integrally formed with standoff 193. Standoff 193 is generally cylindrical and includes a centrally positioned pivot hole 195. Pivot hole 195 is sized to engage pin 123. Body 191 includes pivot hole 197. Pivot hole 197 is sized to engage pin 125. Body 191 forms stop surface 199. Lever 116 is pivotally connected to link 119 by pin 123 through pivot holes 195 and 187. Link 119 is pivotally connected to dog 112 by pin 125 through pivot holes 197 and 157.

[0045] Referring to FIGS. 8A, 8B, and 8C, the preferred method of installing the hinge to the cabinet carcass will be described. FIGS. 8A and 8B show the hinge in an unlocked position. To install removable hinge 100, base 110 is positioned adjacent face 111 of cabinet carcass 105. Flanges 132 are positioned adjacent face 113 of cabinet carcass 105. Thumbscrew 120 is rotated and advances in direction 201 through threaded hole 166 thereby urging pressure plate 114 towards cabinet carcass 105 and away from jaw portion 152. Stanchions 174 and 175 similarly advance through guide holes 164 and 165. Thumbscrew 120 is advanced until cleats 172 abut face 115 of cabinet carcass 105. Lever 116 is pivoted in direction 200 toward base 110. As the lever pivots, links 118 and 119 pivot with respect to the lever and dog 112 thereby forcing dog 112 towards cabinet carcass 105. Arms 154 and 155 slide on rails 136 and 139, while tabs 138 and 148 engage slots 161 and 160 and tabs 163 and 162 engage slots 140 and 141. The engagement prevents torsional rotation of dog 112 relative to base 110. The lever in conjunction with the dog and links form a classic mechanical toggle which amplifies the compressive force applied to the pressure plate. As a result, cleats 172 are driven into face 115, clamping attachment mechanism 104 to cabinet carcass 105 in a locked position. Once in the locked position, minor vertical, horizontal, and lateral adjustments are made by rotating vertical adjustment cam A, horizontal adjustment cam C, and lateral adjustment screw B.

[0046] To release the hinge from the cabinet carcass, lever 116 is pivoted away from base 110, thereby urging dog 112 away from cabinet carcass 105. Thumbscrew 120 is reversed in threaded hole 166 causing cleats 172 to disengage from face 115. As a result, the hinge can be removed completely or quickly adjusted to an alternate location. As lever 116 is moved away from base 110, the stop surfaces provide a stop which abuts dog 112 and restricts rotational movement of the lever to prevent damage.

[0047] It will be appreciated by those skilled in the art that modifications can be made to the embodiments disclosed and remain within the inventive concept. Therefore, this invention is not limited to the specific embodiments disclosed, but is intended to cover changes within the scope and spirit of the claims.