CN2498913Y

CN2498913Y - Front pulling bolt locking mechanism for slide rail

Info

Publication number: CN2498913Y
Application number: CN01201692U
Authority: CN
Inventors: 梁秀江; 陈庚金; 王俊强
Original assignee: Chuanhu Factory Co ltd
Current assignee: Chuanhu Factory Co ltd
Priority date: 2001-01-22
Filing date: 2001-01-22
Publication date: 2002-07-10
Anticipated expiration: 2011-01-22

Abstract

The utility model relates to a pull type locking mechanism of slide rail, which is applied in the slide rail at least comprising an outer rail and an inner rail, in the utility model can transfer the operation action at the front end of the inner rail to a lock key arranged at the end of the inner rail by a long thin lever, Depending on whether the lock key is started/closed, selectively the inner rail is locked at the outer rail or disengaged from the outer rail, wherein the lever adopts push-pull type movement, the operation position at the front end of the lever is an exposed design, the utility model has easy operation, precision structure and easy manufacture.

Description

The preceding pull-type latch mechanism of slide rail

The utility model relates to a kind of latch mechanism, specifically, relate to a kind of be used for including at least rail in, with the slide rail (SLIDE) of an outer rail, in order to locking interior rail and outer rail wherein, or the preceding pull-type latch mechanism that it is broken away from each other.

Slide rail is a kind of device that is widely used among many equipment or the article, normally in order to connect two article that relative motion can take place each other, particularly one of them will carry or support another occasion through slide rail, for example cabinet and drawer thereof, computer desk and keypad support plate thereof, or other analog.

Two general intercept form slide rails include usually: rail (innermember) in the outer rail (outer member) and; With the slide rail that is used in cabinet and drawer thereof is example, outer rail wherein is for being fixed in cabinet in order to carry interior rail, interior rail then is fixed on the both sides of drawer, more than the two is coupled to each other by coupling means (normally a kind of design of ball bearing), and rail can be done moving back and forth with respect to outer rail along the axis direction of outer rail in making.Therefore, drawer just can see through the inside collection that slide rail freely is drawn out cabinet or is pushed back cabinet.

This two-piece type slide rail that includes outer rail and interior rail, a kind of design of bolt-lock also must be arranged, in order to be drawn out cabinet along with drawer at interior rail when the end of middle rail moves to a use location, interior rail is barred from the end of outer rail, drawer temporarily can also be remained on the use location that this is drawn out except preventing that drawer from dropping.Certainly this bolt-lock also must possess the function that can supply drawer to be removed, so that the user unloads together with interior rail drawer where necessary in cabinet, and can reinstall within the cabinet once again.

Laid-open U.S. Patents the 5th, 405, No. 195 and United States Patent (USP) the 5th, 961, mentioned a kind of other end that can be positioned at slide rail for No. 193 or than the design of the latch mechanism of far-end in the front-end control of railroad, this mechanism design mainly is to see through a kind of leverage, break away from being latched in several slide rails of taking in the position fully, this leverage is made of a very long wire spring, its end is exposed at the end of railroad towards expansion direction outward, the other end then extends to a bolt lock device of railroad inside, when the user depresses the end that wire spring exposes, just can utilize the other end of wire spring that the locking latch (locking pin) in the bolt lock device is upwards dialled according to lever principle, and finish the operation that breaks away from railroad.This employing press-down type operation and the design that exposes are easy to the action that makes a mistake because of user's false touch, and its structure is also rather complicated.It only is applicable to that this loading is to be located at the railroad of top to use, for the slide rail of the both sides that generally are installed on loading (as drawer) at present, because their volume is thinner than the former, so can't hold and use aforementioned this lever-type latch mechanism.

For Given this, the purpose of this utility model is to provide a kind of latch mechanism of adopting plug-type operation, described latch mechanism can see through the mode of operation of push-and-pull at the exposed junction of slide rail, control is positioned at the inner or blocking wedge action relatively at a distance of slide rail, be latched in a use location in order to object with slide rail institute load, or discharge blocking wedge fully, so that unload the object of glidepath institute load or push it back into a reception position.

Another purpose of the present utility model is to provide the latch mechanism that a kind of structure is simplified and volume is minimum.

The utility model relates to a kind of preceding pull-type latch mechanism, and described latch mechanism comprises a block piece, is fixed on outer rail, in order to moving of rail in stopping when interior rail moves to the use location; One connecting rod, it can be a kind of thin thin and long sheet connecting rod, it also can be a kind of steel wire type connecting rod, described connecting rod is installed in interior rail, can do reciprocal slip along the long axis direction of interior rail, one end of connecting rod is the operating side and is exposed at slide rail one end outward that the other end of connecting rod has then designed at least one release cam; One blocking wedge, a place of rail in rotatably being hubbed at, normality remains on a locked position of coupler, and can be by release cam interlock to a unlocked position of connecting rod, in order to optionally to mesh, with the locking restriction of moving or remove the internal rail of block piece of rail in stopping with block piece; And a flexible member, be installed on interior rail, make blocking wedge remain on aforesaid normality position by itself elastic force.

In order to understand technical characterictic of the present utility model and effect better, particular content of the present utility model and embodiment are further described in detail below in conjunction with accompanying drawing.

Fig. 1 is STRUCTURE DECOMPOSITION figure of the present utility model, shows the element of slide rail and preceding pull-type latch mechanism;

Fig. 2 is structure chart of the present utility model, shows that the user is positioned at the situation of the preceding pull-type latch mechanism at drawer panel rear with finger manipulation;

Fig. 3 A, connecting rod when showing the latch mechanism normality and blocking wedge concern schematic diagram;

Fig. 3 B, when being about to arrive at the use location for rail in showing, blocking wedge is crossed the situation schematic diagram of block piece;

Fig. 3 C, when arriving the use location for rail in showing, blocking wedge and block piece are engaged with each other and stop the situation schematic diagram of interior rail and outer rail generation relative motion;

Fig. 3 D, for the release cam interlock blocking wedge that shows connecting rod cause in the situation schematic diagram that breaks away from each other of rail and outer rail;

Fig. 4 is the another kind of embodiment structural map of preceding pull-type latch mechanism;

Fig. 5 is the another kind of embodiment structural map of preceding pull-type latch mechanism.

At first as depicted in figs. 1 and 2, the preceding pull-type latch mechanism of slide rail of the present utility model mainly is to use a kind of to comprise at least: two intercept form slide rails of rail 30 (innermember) in the outer rail 20 (outer member) and; To be used in cabinet and to be example in order to the slide rail of load drawer, the sum of slide rail will have two, they are installed in the both sides of drawer respectively, wherein outer rail 20 is to be fixed in cabinet and in order to rail 30 in carrying, 30 on interior rail is fixed on the both sides of drawer and is incorporated among the outer rail 20, more than the two is coupled to each other by coupling means (normally a kind of design of ball bearing 40) each other, and rail 30 can be along outer rail 20 in making axially does moving back and forth with respect to outer rail 20.Therefore, but drawer just can see through slide rail and freely be drawn out cabinet and arrive at one and pull out fully wouldn't break away from the use location of cabinet towards the direction of disengaging configuration, or forced back towards the reception position of taking in fully among the cabinet towards the direction of cabinet.When drawer is positioned at the above-mentioned use location that is drawn out, more can see through the designed preceding pull-type latch mechanism of the utility model, rail 30 and outer rail 20 locking relation each other in removing, the user can at random push back drawer the inside of cabinet, or drawer is fully unloaded from cabinet.

Pull-type latch mechanism before of the present utility model, its basic composition includes:

One block piece 50 is fixed on outer rail 20, in order to moving of rail 30 in stopping when interior rail 30 moves to the use location; One connecting rod 60, it is a kind of elongated element, this connecting rod 60 is installed in interior rail 30, can do reciprocal slip along the long axis direction of interior rail 30, one end of connecting rod 60 is an operating side 61 and an end that is exposed at whole slide track component outward, make the user within reach, the other end of connecting rod 60 has then designed at least one release cam 62; One blocking wedge 70, a place of rail 30 in the middle position of blocking wedge 70 is hubbed at by a pivot 72, blocking wedge 70 can be freely around pivot 72 rotations, and normality remains on a locked position of coupler (as Fig. 3 A), and can be by release cam 62 interlock to unlocked positions (as Fig. 3 D) of connecting rod 60, a blocking surface 71a and a back blocking surface 71b before the axial two ends of latching member 70 also have one respectively, these two blocking surface 71a, when 71b moves to the use location at interior rail 30 (as Fig. 3 C), will be blocked part 50 stops, use rail 30 and relative the moving of outer rail 20 generations in stopping, otherwise when blocking wedge 70 is released cam 62 interlocks to unlocked position, these two blocking

surface

71a, 71b just can separate with block piece 50, and remove the locking restriction (as Fig. 3 D) of rail 30 in 50 pairs of the block pieces, so the user just can at random push back drawer the inside of cabinet, or drawer fully unloaded from cabinet; And a flexible member 80, rail 30 in being installed on makes blocking wedge 70 remain on above-mentioned normality position by itself elastic force.

Certainly, if only at the axial preceding blocking surface 71a of Front-end Design of blocking wedge 70, also be feasible embodiment, it can be stopped when interior rail 30 is drawn out to the use location, also can be when blocking wedge 70 be released cam 62 interlocks to unlocked position, blocking surface 71a and block piece 50 breaks away from before making, and removes the locking restriction (as Fig. 3 D) of rail 30 in 50 pairs of the block pieces, thus the user just can be with drawer fully from the cabinet taking-up or unload.

In first kind of preferred embodiment of the present utility model, block piece 50 is independent components of being installed to outer rail 20, it is fixed on the one side of outer rail 20 towards blocking wedge 70, it has a pair of first blocking surface 51a and the second blocking surface 51b that lays respectively at diagonal positions at least, these two blocking

surface

51a, 51b each other to angular dependence, just in time with described blocking wedge 70 when the normality locked position of coupler, each other the same of those two blocking

surface

71a, 71b to angular dependence.So when interior rail 30 is about to arrive at before the use location, situation that will be shown in Fig. 3 B is the same, blocking wedge 70 is near one side of the second blocking surface 51b of block piece 50, will cross the second blocking surface 51b, just arrive the use location shown in Fig. 3 C then, and two of blocking wedge 70 blocking surface 71a at the same time, 71b will be between two

blocking surface

51a and 51b of block piece 50, and two the blocking surface 51a and the 51b that are blocked part 50 respectively stop, and stoped moving of interior rail 30.No matter be the normality position as shown in Figure 3A certainly, still in the situation shown in Fig. 3 C, two blocking surface 71a of blocking wedge 70, the relation that 71b preferably can both form quadrature with two the blocking surface 51a and the 51b of block piece 50, for example: when above-mentioned two kinds of situations shown in Fig. 3 A and Fig. 3 C, each

blocking surface

71a, 71b, 51a, 51b all can be vertical with the glide direction of interior rail 30, so just can guarantee normally and not can getting loose each other of barrier functionality.

And in another preferred embodiment of the present utility model, two blocking surface 51a of

block piece

50 and 51b can directly utilize stamping technology to be formed at the base plate 21 of outer rail 20, and outstanding towards the direction of blocking wedge 70.This design can be made independent component-block piece 50 as shown in Figure 1 in addition, and component number is more simplified.

In first kind of preferred embodiment of the present utility model, connecting rod 60 can be a kind of thin thin and long sheet connecting rod 60, only need utilize stamping technology just can on sheet metal, take off this connecting rod 60, at the utility model example as shown in Figure 1, an external member 63 can also be installed in the operating side 61 of connecting rod 60, a force application location so that user's push-and-pull connecting rod 60 to be provided, we can select to make this external member 63 with plastic cement and then fixing (for example fixed form of binding or embedding) be got final product in the operating side 61 of connecting rod 60.In addition, we also are formed with several hooks 32a at the base plate 31 of

interior rail

30,32b, and also designed the outstanding wing 64a of several equivalent correspondences on the other hand in a side of connecting rod 60,64b, then the connecting rod 60 of this sheet is lain in the surface of base plate 31, make outstanding wing 64a, 64b slips into hook 32a, the below of 32b, by hook 32a, the restriction of the sidewall 33 of 32b and interior rail 30 just can make base plate 31 surfaces back and forth the slip of connecting rod 60 at interior rail 30.Then the two ends of flexible member 80 are separately fixed at some fixed positions of interior rail 30 and connecting rod 60, just can guarantee connecting rod 60 unlikely getting loose.

And in this embodiment, flexible member 80 is a kind of steel wires, it is bent to suitable shape so that elasticity to be provided, its end is fixed on interior rail 30, the other end then is fixed on connecting rod 60, design suitable limiting means in addition and control its diastrophic stroke, for example the base plate 31 at interior rail 30 forms a perforation 34 of elongating along the moving direction of connecting rod 60, and an alignment pin 65 that just can insert this perforation 34 and move arbitrarily is installed at connecting rod 60, the elastic force that just can utilize flexible member 80 normalities to be provided, connecting rod 60 is pushed towards an end of outer rail 20, under the restriction of perforation 34, worry that neither connecting rod 60 comes off, also can avoid exceedingly spurring connecting rod 60 and cause fault.

Pass on the elastic force of flexible member 80 to give blocking wedge 70 in order to see through connecting rod 60 on the other hand, make it remain on the position of normality, connecting rod 60 more includes a resetting cam 66, it is like being a nose outstanding among connecting rod 60, it just can withstand the preceding blocking surface 71a of blocking wedge 70, in order to blocking wedge 70 is pushed back the locked position of coupler (as shown in Figure 3A) of normality, also because connecting rod 60 is a kind of thin thin and long sheets, influenced the contacting of the second blocking surface 51b of preceding blocking surface 71a and block piece 50 for fear of resetting cam 66, we can suitably strengthen the thickness of blocking wedge 70, the area of blocking surface 71a before increasing by this.In like manner, flexible member 80 also can be a kind of extension spring as shown in Figure 4.

See also Fig. 5 at last, be another kind of embodiment structure of the present utility model, in described embodiment, above-mentioned thin thin and long sheet connecting rod 60 will be replaced by a kind of connecting rod 67 of steel wire type, connecting rod 67 still has an operating side of exposing 61, operating side 61 is equiped with an external member 63 equally, but the other end at connecting rod 67 only remains with a formed release cam 62a of the means by bent connecting rod 67, and the least significant end of the connecting rod 67 of steel wire type, the tail end 68 that then has a turnover, the design of the flexible member 80 of this moment is slightly different, its central part is fixed in interior rail 30, two outside open force side 81a have also been designed in addition, 81b, the tail end 68, one that withstands blocking wedge 70 and connecting rod 67 respectively is in order to maintaining blocking wedge 70 locked position of coupler of normality, and another person maintains a standby position of interlock blocking wedge 70 (as shown in Figure 5) not as yet with connecting rod 67.

Certainly; above-mentioned explanation is just illustrating preferred embodiment of the present utility model; be not in order to limit scope of the present utility model; the variation that the every utilization of other example technology contents of the present utility model is done; for example the utility model is applied to the three-sectional slide rail of rail 30 in a kind of comprising, outer rail 20 and middle rail (intermediate member); also be feasible embodiment excursion, all should belong to the utility model claims protection domain and contain.

Claims

1, a kind of preceding pull-type latch mechanism of slide rail is used in a kind of two intercept form slide rails that include outer rail and interior rail, it is characterized in that comprising:

One block piece is fixed on outer rail, in order to moving of rail in stopping when interior rail moves to the use location;

One connecting rod, be a kind of elongated element, described connecting rod is installed in interior rail, can do reciprocal slip along the long axis direction of interior rail, one end of described connecting rod is an operating side and an end that is exposed at whole slide track component outward, make the user within reach, have a release cam at least at the other end of described connecting rod;

One blocking wedge, a place of rail in its middle position is hubbed at by a pivot, described blocking wedge can be freely around described pivot rotation, its normality remains on a locked position of coupler, and can be by release cam interlock to a unlocked position of described connecting rod, blocking surface before the axial forward end of described latching member has one, in order to when interior rail moves to a use location, to be stopped by described block piece, rail and outer rail break away from preventing, otherwise when described unlocked position, this first blocking surface and this second blocking surface just separate with described block piece, remove the locking restriction of described block piece to rail in described; And

One flexible member is installed on interior rail, makes described blocking wedge remain on above-mentioned normality position by itself elastic force.

2, the preceding pull-type latch mechanism of slide rail as claimed in claim 1, it is characterized in that described block piece is to be fixed on the one side of outer rail towards described blocking wedge, it has one first blocking surface, described first blocking surface just can stop the preceding blocking surface of this blocking wedge when this use location, break away from rail in preventing and outer rail.

3, the preceding pull-type latch mechanism of slide rail as claimed in claim 1, it is characterized in that described block piece has the base plate that directly is formed at outer rail, and towards one first outstanding blocking surface of the direction of described blocking wedge, described first blocking surface just can stop the preceding blocking surface of described blocking wedge when this use location, break away from rail in preventing and outer rail.

4, the preceding pull-type latch mechanism of slide rail as claimed in claim 1, the axial rearward end that it is characterized in that described blocking wedge also has a back blocking surface, described block piece is to be fixed on the one side of outer rail towards described blocking wedge, it has a pair of one first blocking surface and one second blocking surface that lays respectively at diagonal positions at least, in order to the preceding blocking surface and back blocking surface that stops described blocking wedge when this use location respectively, relatively move with rail in preventing and outer rail, described first blocking surface and described second blocking surface each other to angular dependence, just in time with described blocking wedge when the normality locked position of coupler, described before each other the same of blocking surface and described blocking surface afterwards to angular dependence.

5, the preceding pull-type latch mechanism of slide rail as claimed in claim 1, the axial rearward end that it is characterized in that described blocking wedge also has a back blocking surface, described block piece includes the base plate that directly is formed at outer rail, and towards the direction of described blocking wedge outstanding one first blocking surface and one second blocking surface, in order to the preceding blocking surface and back blocking surface that stops described blocking wedge when this use location respectively, relatively move with rail in preventing and outer rail, described first blocking surface and described second blocking surface each other to angular dependence, just in time with described blocking wedge when the normality locked position of coupler, described before each other the same of blocking surface and described blocking surface afterwards to angular dependence.

6, the preceding pull-type latch mechanism of slide rail as claimed in claim 1 is characterized in that described connecting rod is a kind of thin thin and long sheet connecting rod, also is equiped with an external member in described operating side.

7, the preceding pull-type latch mechanism of slide rail as claimed in claim 1 is characterized in that described connecting rod also comprises a resetting cam, can withstand the preceding blocking surface of described blocking wedge just, in order to blocking wedge is pushed back the locked position of coupler of normality.

8, the preceding pull-type latch mechanism of slide rail as claimed in claim 1 is characterized in that described flexible member is a kind of steel wire, and it is bent to suitable shape so that elasticity to be provided, and its end is fixed on interior rail, and the other end then is fixed on described connecting rod.

9, the preceding pull-type latch mechanism of slide rail as claimed in claim 1 is characterized in that described flexible member is a kind of extension spring, and its end is fixed on interior rail, and the other end then is fixed on described connecting rod.

10, the preceding pull-type latch mechanism of slide rail as claimed in claim 1, it is characterized in that described connecting rod is a kind of connecting rod of steel wire type, described steel wire type connecting rod has an operating side of exposing, described operating side also has an external member, the other end at described connecting rod only has a formed release cam of means by the described steel wire type of bending connecting rod, and also having one at the least significant end of the connecting rod of described steel wire type can be by the tail end of the bending of the resiliency urged of described flexible member.

11, the preceding pull-type latch mechanism of slide rail as claimed in claim 10, the central part that it is characterized in that described flexible member is fixed in interior rail, it has two outside open force sides, withstand the tail end of described blocking wedge and described bending respectively, one in order to maintaining described blocking wedge the locked position of coupler of normality, and another person maintains a standby position of this blocking wedge of interlock not as yet with described steel wire type connecting rod.

12, the preceding pull-type latch mechanism of slide rail as claimed in claim 1, it is characterized in that described in the base plate of rail be formed with a perforation of elongating along the moving direction of described connecting rod, described connecting rod and have an alignment pin that just can insert described perforation and move arbitrarily is in order to limit the pulling stroke of described connecting rod.