TWM244802U - Interlocking latch device for drawer - Google Patents

Description

Μ244Βϋ2—

4. Description of Creation (ι) [Technical Field to which the New Type belongs] This case is the creation of a drawer interlocking latching device, especially referring to the simpler design of the fixed component of the rotating cam, and the modification of each connecting element = a straightforward assembly and more Those who perfect the drawer interlocking latch device. [Previous technology] At present, there are multiple sets of upright and bottom upright pomelo drawers that can be opened and closed one by one. In order to effectively prevent one of the drawers from being opened, and to prevent other drawers from being opened or lowered, Set a drawer f between each drawer. < Solemn installation Your Feng Xizhi drawer interlocking latching device is installed in the upper and lower sets of upright drawers as shown in the first picture. As shown in the second figure, the latch structure of the drawer interlocking latch device 1 'mainly includes a fixed seat D11, a pivot cam 12, two sets of brake slides 13, and a slider 2. =. The pivoting cam 12 ′ is pivoted by a pivot shaft 121 and a fixing sleeve pivoted in the pivot hole ill of the fixed seat, so that its upper portion 122 is received by the turning piece 21 Ji guide groove 22 ′ When the person is detached, insert it at an angle of 9 (), as shown in the third and fourth illustrations, and the slot 123, which has a built-in dance; 2 = cam 12, tied to the bottom and the other side of the bottom Convex setting—lower = steel ball 125 pushed down on page 7 of two saddles, with two two ',' spaced 90 degrees apart on the surface of the board, and — the protruding hole 33 at the front end of the track 3 '26; It is a guide groove 32 and a through-pivot cam 12 of the Kuyi, the pivot path guide 2: the guide groove of the rail f ', the middle crop is pushed against the rail 3, and the front end ^ the steel ball 125, It is the normal convex convex plate surface for the pivot cam 12, turn

M24TOQ2 4. Creation instructions (2) The two grooves 31 at the time, the middle is -9. The limit setting of the degree of pivoting .. ^ ^ u ... The way to achieve the degree of setting of the degree of pivoting, its * and = two i structure design type is more complex, and the habitat axis 121, need to be riveted square 2 fixed = Figure As shown in Figure 3, the perforation 33 at the front of the protruding plate surface is medium and time-consuming and troublesome to install, and the manufacturing cost is high, which is not conducive to product production. As shown in the second and fifth figures, the above two The two sets of brake pads are convex, and the slot grooves 112 of Γ are opposed to each other to pivot = 2 turn cam 12, which is 9. When the degree of pivoting, two groups can be linked: * Motion: The plate 13 is displaced outward, which causes the brake lever i or the lower drawer connected to the pivot cam 12 'to form a latch and lock; however, the brake slide requires one ^ A positioning portion 131 is protruded on each side, 'making it interlocked in the insertion assembly, and inserting it' causes inconvenience in assembly; & when the drawer is assembled as an integral member on the slider 2, and Track 3 has an early structure since it can be installed directly on the drawer. = ^ Two sets of brake slides 13 have no effective blocking function, so they are placed on the lower dagger slides 13 and fall off. Since the fixing seat u is outside, the brake slides need to be assembled separately, which is more time-consuming and requires only additional man-hours. [New content] Based on the use requirements of drawer interlocking latches, the creators of the book are aware of the lack of drawer interlocking latches and improved them] Li Qibao's simpler design of components, and the connection elements have been changed to facilitate ^ And more, perfect design, and there is a reduction in manufacturing costs. Assemblers, ', can greatly improve the competitiveness of products for industrial use.

M244mZ 4. Creation instructions (3) [Embodiment] Please refer to Figures 6 to 15 as shown in the figure. The drawer interlocking latch device provided by this creation mainly includes a fixed base 1, a pivot cam 2, and two groups. The brake slide 3 and a guide dial 4.

The fixing base 1 is fixed on the 6-end of the track, and a receiving pivot groove 11 is arranged in the center. The receiving pivot groove 11 is provided with a concave arc opening 111 at an angular interval of 90 degrees on the inner periphery, on the top surface. A pivot hole 11 2 is formed in the center, and two corresponding limiting arc grooves 11 3 are provided on the top surface, and a sliding groove 12 is longitudinally opened at the bottom of the fixed seat 1. The sliding grooves 12 are on the top walls on both sides. A bump 1 2 1 is provided, and the two bumps 1 2 1 are arranged diagonally opposite to each other, and the corresponding channel 6 is also provided with a corresponding slot 6 1 at a position corresponding to the chute 12; and the fixed seat 1 is A stopper 13 is protruded on each of the two longitudinal sides of the top surface.

The pivot cam 2 is provided with a spring tenon 21 extending from two opposite side edges of the outer edge surface, and the pivot cam 2 and the spring tenon 21 are respectively convex on the two outer edges of the axis with a 90-degree staggered axis orientation. A large protruding column 22 and a small protruding column 23 are extended to correspond to each other ', and a rotation shaft 24 is protruded from the center between the large protruding column 22 and the small protruding column 23, and the pivot cam 2 protrudes from a bottom side of a gear. Block 25, so that the top surface of the pivot cam 2 is embedded in the fixing groove], and the rotation shaft 24 is inserted into the pivot hole 11 2 correspondingly, the large convex column 22 and the small convex column 23 is correspondingly inserted into the limiting arc groove 113, and the spring tenon 21 can be correspondingly snapped into the concave arc opening U1, so the pivoting cam 2 can be pivoted on the fixed seat 可, but the large convex column 22 and the small The protrusion 23 is inserted into the limiting arc groove 113 and will be limited by the path. Therefore, the pivoting cam 2 can only be pivoted on the fixed seat 1 through a 90-degree path. The moving tenons 21 are correspondingly snapped into the concave arc 丨 丨 丨 to promote the pivoting convex

M244802 Creation instructions (4) Both wheels 2 have a certain position after pivoting 90 degrees. In this case, the pivot cam 2 and the conventional pivot cam 12 are compared. The rotation of 90 degrees does not require the pivot 121, the spring 124 , Steel balls 125, and lower bumps 126 ', etc., it is only necessary to use the spring cam 21 on the periphery of the pivot cam 2, the large convex pillar 22 and the small convex pillar 23 on the top surface and the fixed base 1 as one The snap-in setting limit can be achieved, which makes the design of the pivoting setting member simpler. The two sets of brake pads 3 are inserted into the sliding grooves 丨 2 of the fixed seat 1, and the external insertion grooves 3 1 can be sleeved to control a brake lever for interlocking. Furthermore, two sides of the corresponding ends of the two sets of brake pads 3 respectively extend with convex abutment portions 32, so that the two sets of brake pads 3 are butted against each other to form a rectangular groove for the pivot cam 2 Frame (as shown in the eighth figure). In addition, the two sets of brake pads 3 are provided with positive and negative guide grooves 3 3 on both side plates, so whether the brake pads 3 are inserted into the grooves 1 2 or not, Both can make the guide groove 33 correspond to the convex point 121 on the sliding groove 12, and the guiding groove 33 is introduced into the end groove surface and a locking point 331 protruding against the convex point 121 is convex, so as to promote two sets of brake pads 3 When sliding outward, the limit point can be formed by the blocking point 331 and the convex block of the chute 12. Therefore, the two sets of the braking slideway 6 corresponding to the slot holes 6 丨 are forced to fit into the fixed seat 1 The slide groove i 2: Out: The locking effect of the It point 331 and the convex point 121 of the slide groove 12 can be avoided from the track 6 ': The integral component can be assembled on the slide 5 at a time directly = installed to form a unit Structure, which can directly assemble the entire unit structure, which is simpler and faster in terms of assembly efficiency. Each of them is shown in Figure 8 and Figure 9, when pivoting Cam 2 pivots once

M244802 IV. Creation instructions (5)-When the position is fixed, its shifting block 2 5 can slide the two pairs of brake pads 3 to slide outward, so that the brake lever inserted in the groove 31 can be inserted. Protective interlocking measures are formed to prevent the latching of the upper and lower drawers, effectively preventing one of the drawers from being opened, and preventing other drawers above or below it from being opened. Therefore, the two sets of brake pads 3 are designed with symmetrical convex abutment portions 3 2 so that any set of brake pads 3 can be inserted into the fixed seat 丨 丨 the sliding grooves 12 in any orientation, on the installation There is no need to identify the insertion direction, which simplifies assembly operation and is quite practical and convenient. Referring again to the sixth figure, the guide dial 4 is locked and assembled at the rigid end of the sliding member 5. A guide slide groove 41 and a curved slide groove 42 are provided on the side plate surface. The guide slide The groove 41 is divided into a front guide groove 411 and a rear guide groove 412. When the sliding member 5 slides in the direction of the fixed seat 1, the linked guide guide groove 41 can correspond to the pivot cam 2 The small convex post ㈡, and the arc groove 42 can correspond to the large convex post 22 of the pivot cam 2 (as shown in the figure). θ Push forward ϋ — 4 As shown in the embodiment of the fifteenth figure, when the sliding member 5 goes-into the stop 1 of the fixed seat 1 3, the slide rail 2 is formed to slide 2 when t pivot the cam 2 The position of the stopper 25 is maintained by the external factors and remains in the abnormal orientation. At this time, the creative pivoting surface and the entry pillar 23 will be guided by the guide grooves before the dial 4 411 oblique SSL turning cam 2 is formed as shown in the thirteenth figure, so that the pivot tL ′ _ can introduce the large convex column 22 into the entrance of the arc chute 42. Displacement: it, the shift block 25 keeps the original two shifts The group of brake pads 3 is outward 7 or the bottom drawer is in a vertical state which cannot be opened by being locked.

M244802 No, creation description (6) State ', this greedy ^ interlocking + locking device is equipped with pre-guided misalignment protection measures to positive = state turn = February dagger complex ^ under the influence of the use of inappropriate operating factors Second, it is impossible to open the pump in the locked state when it is in operation or lower; the operator who unlocks the upper or lower drawer. The shape of the hall I is large == Temple / When moving forward, it is necessary to introduce the curved arc path of the curved chute 42 42. ^ The shifting state shown in the fourteenth figure, "Curved arc chute > 412 is used as the guide for I d, and the small convex post 23 is guided after the guide chute 41, so that the pivoting cam 2 is a dial stop 25 then continue to pivot to form a 90-degree pivot, as shown in the fifteenth figure, which can be opened in an unlatched state. In contrast, when the guide dial 4 is released from the slide backward, at this time, the pivot The convex pillar 22 is also guided by the curved path of the curved chute 42, and the = convex pillar 23 is guided by the guide chute 41 and the guide groove 412 as the guide, so that the pivot is convex # 1 Block 25 then continues in the order of 90 $ shown in the fifteenth to thirteenth pictures !! Turn 'so turning the dial 2 of cam 2 to form another pivot 2 set' can make two The group brake pads 3 can be repelled outwards by receiving the block (as shown in the ninth picture), which urges the person who can not open the upper or lower drawers in the $ lock state. The drawer interlocking latch device is provided, which is indeed energy efficient. It is expected that the drawer interlocking latch function of the upper or lower drawer is in a locked or opened state, and the design of the pivotal fixed member of the stern area cam is simpler. And each page 920819.ptd M244802 No. Creation instructions (7) The connector is changed to facilitate assembly and more perfect design, which effectively reduces manufacturing costs and assembly man-hours. This greatly enhances product competitiveness and is highly industrially applicable. ΪΒΚ Page 12 920819. ptd M244802 Brief description of the diagram The first picture shows the assembly and application of the conventional drawer interlocking latch assembly. The second figure shows the conventional drawer interlocking latch. Schematic diagram of the assembly relationship of the related components of the device. The third figure shows the cross section of the pivoting cam of the conventional drawer interlocking latch device. The fourth figure shows the related fixed slot holes and the corresponding protruding slot on the front end of the conventional rail. Drawer interlocking latch device assembly application schematic diagram. The fifth figure shows the embodiment of the conventional drawer interlocking latch device assembly state diagram. The sixth figure shows the creative drawer interlocking latch device related Schematic diagram of the assembly relationship of the components. The seventh diagram shows the assembly relationship of the two sets of brake pads assembled on the fixed seat. The eighth diagram shows the creation of the two sets of brake pads that have not been pushed by the shift pads. The schematic diagram of the state. The ninth diagram is a schematic diagram of the state of the two sets of brake pads being moved by the dial block. The tenth diagram is the schematic diagram of the assembly relationship between the creation guide dial and the pivoting cam. The first figure shows the schematic diagram of the assembly relationship between the creative drawer interlocking latching device, the sliding member and the slide rail. The twelfth figure shows the first schematic diagram of the pivoting state of the creative guide dial in the forward and backward movement of the pivoting cam.

Page 13 920819.ptd M244802 Brief description of the diagram The thirteenth diagram is the second schematic diagram of the pivoting state of the creative guide dial forward and pivoting cam. The fourteenth figure is the third schematic diagram of the pivoting state of the creation cam, the pivoting cam, and the pivoting cam. The fifteenth figure shows the fourth state of the rotation of the pivoting cam when the creative guide dial moves forward. Explanation of symbols: 1, .....… only by drawer interlocking device 11, ____… fixed base 111,… • • pivot hole 112,… ... slotted hole 12 '____ rotary cam 121,… shaft 122 ,… Jl convex portion 123,… slot 124,… spring 125,… bead 126,…… T bulge 13, ____… brake slide 131,… locating portion 2,… slide Piece 21,…… pick 22, ____… guide groove 3, ..... • • • track 31, ____ ... W groove 32,…… guide groove 33, ____… perforated 4, ....… Brake lever 1 ...… Fixed seat 11 .....… accommodating the groove 111____… IH7 arc D 112____ • · · Pivot hole 113____… limit arc groove 12 .... ... chute 121____ ... a point 13 ..... ...... stop 2 ............ turn the cam 21 ..... ...... spring tenon 22 ..... … Large convex post 23 .....… small convex post 24 .....… rotating shaft

M244802 on page 14 Brief description of the diagram 25 ....... .Dial block 3 ........... Brake pad 31 ....... .Insertion groove 32____ ____ convex Abutment 33 ....... .Guide groove 331… .. Clicking point 4 ... .Guide dial 41 ·… ____Guide chute 411 .... .. .. Front guide groove 412 ... ____ Rear guide groove 42 ........ Curved sliding groove 5 ..... 6 ......... Rail 61____ ____ Corresponding slot

Page 15

Claims (1)

M244802 V. Application for Patent Scope 1. A drawer interlocking latching device, including: a fixing bracket, which is fixed at one end of the track, and an accommodating groove is provided at the center; the accommodating pivot groove is 9 to the inner periphery. A concave arc opening is provided at each equal angular interval, a counterbore is arranged in the center of the top surface, and two corresponding limiting arc grooves are provided on the top surface, and a sliding groove is longitudinally provided at the bottom of the fixing seat, and the fixing seat is A stopper is protruded on each of the two longitudinal sides of the top surface; a pivoting cam is attached to the two opposite side edges of the outer edge surface, each of which has a resilient tenon for receiving the concave arc of the inner periphery of the pivot groove with the fixed seat Mouth matching cooperates with a locking and positioning effect 'and on the two outer edges of the pivot cam and the elastic tenon spaced 90 degrees from each other with staggered axis orientation, large convex pillars and small convex pillars respectively correspond to each other for corresponding accommodation. The limit arc groove set on the top surface of the pivot groove is used to limit the pivoting cam to a 90-degree pivot path, and a rotation shaft protrudes from the center between the large convex pillar and the small convex pillar for insertion. Receiving the pivot hole in the center of the top surface of the pivot groove, so that the polar turning cam is embedded in the capacity of the fixed seat In the pivot groove, the pole can be rotated with the rotation axis as the axis; two sets of brake pads are inserted into the grooves of the fixed seat and the externally inserted grooves are connected to control the brake lever for interlocking. A convex abutment portion is extended on each side of the corresponding end, so that when the two sets of brake pads are docked with each other, a rectangular groove frame is accommodated by the shift cam of the pivot cam; and ^ A guide dial is locked and assembled at the front end of the sliding member. There is no guide chute and a curved chute on the side plate surface. The guide chute is divided into a front guide slot and a rear guide slot. The guide chute corresponds to the small convex column of the pivot cam, and the curved chute can correspond to the large convex column of the pivot cam, so that the small convex column can be guided by the guide groove before the guide chute. Leading Path Drives Larger Pivot Cams M244802 patent application scope 2T is introduced into the curved chute, and the large convex column is guided by the curved chute, and the small convex column is guided by the guide slot after the guide chute, so that the pivoting cam forms a 90-degree pivot effector. Qi 2, -bit 抽屉 The drawer interlocking latching device described in item 1 of the scope of patent application, A = f 疋 The sliding grooves on the top walls of each side are provided with a bump on each side, and the two bumps are at an oblique angle Confrontation. A convex = The drawer interlocking latching device described in item 1 of the scope of the patent application, the two sets of brake pads in the eighth middle are provided with a positive and anti-symbol guide on each side of the plate. Corresponds to the convex point on the slide groove, and the guide groove = the end groove surface is provided with a catch point that resists the convex point, which promotes the two sets of slides. The convex point of the slot acts as a stopper to form a limit position. The drawer interlocking latching device as described in item 1 of the scope of patent application, wherein the front guide groove provided at the front end of the guide chute of the guide bow and the dial plate is provided with a guide surface. The drawer interlocking latching device as described in item 1 of the scope of the patent application, wherein the path set by the arc chute of the guide bow 丨 dial plate can be introduced by the large projection of the pivoting cam to form a 90-degree pivoter . 6. The drawer interlocking latching device according to item 4 of the scope of patent application, wherein the front guide groove provided at the front end of the guide chute of the guide dial plate is provided with an inclined guide surface, which can be moved. Guide the small convex column to cause the pivoting cam to form a pivoting effect, and allow the large convex column that drives the pivoting cam to be smoothly introduced into the curved arc α groove. This promotes the use of any improper operating factors under the influence of the use situation, and further has Pre-guided misalignment prevention that enables the pivoting cam to return to normal 920819.ptd Page 17 M244802 Fifth, the scope of application for patent protection measures can continue the subsequent control of the pivot cam to be guided by the guide chute and curved chute of the guide dial to form a 90 angle Pivot actors. Page 18 920819.ptd