JP3098133U - Bidirectional positioning structure for drawer trucks - Google Patents

Abstract

An object of the present invention is to provide a bidirectional positioning structure of a drawer truck, which can select a locking relationship or an unlocking relationship by a blocking portion of a blocking seat, and can enhance the convenience in using the truck.
A positioning assembly and a blocking seat are mounted on a first track and a second track, respectively, and the positioning assembly is provided with at least two positioning arms and one pressing elastic member. The positioning arm is provided with an inclined surface and a locking portion correspondingly, and a blocking portion is provided with a blocking portion. When the first track is pulled forward to the predetermined operation position, the blocking portion of the blocking seat provided on the second track vigorously climbs over the inclined surface of one of the positioning arms of the first track, and By being formed so as to be locked between the locking portions of the positioning arm, bidirectional positioning is configured.
[Selection diagram] Fig. 1

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a bi-directional positioning structure of a drawer track, in particular, the first track has a bi-directional positioning function by adding a positioning assembly and a blocking seat to the first track and the second track, respectively. The present invention relates to a bidirectional positioning structure of a drawer track that can be formed as described above.
[0002]
[Prior art]
In this kind of conventional one, it is as follows.
[0003]
As shown in FIG. 14, the conventional three-stage drawer truck structure mainly includes a third track 10 (outer track), a second track 20 (middle track), and a first track 30 (inner track). It is. Among them, the third track 10, the sliding assist member 40 is installed between the second track 20 and the third track 30, respectively, so that the sliding is further smooth. Further, the first track 30 and the second track 20 are provided with, for example, a locking member 301 and a stopper 201, so that the function of positioning the first track 30 in a single direction can be provided. Reference numeral 301 is provided inside the first track 30 and a projection 302 is provided. The stopper 201 is located at the front end of the second track 20, and the stopper 201 is provided with a locking member 202. When the first track 30 fitted into the second track 20 is pulled forward by the user, the locking member 202 of the stopper 201 can properly lock the projection 302 of the locking member 301. In some cases, the first track 30 can be prevented from separating from the second track 20 forward.
[0004]
[Problems to be solved by the invention]
In the structure of the conventional three-stage drawer truck as described above, the first track 30 is unexpectedly pulled due to excessive pulling in front of the first track 30 by using the locking member 301 and the stopper 201 of the drawer. It is possible to avoid detachment from the two-track 20, but when the user pulls out the drawer and tries to use an article (for example, a keyboard) left on the drawer, or a device left on the drawer It is impossible to prevent the first track 30 from slipping into the second track 20 again by the locking member 301 and the stopper 201 at the same time when the drawer is to be inspected. The drawer truck has a problem that it is somewhat inconvenient to use because it often moves inside. Therefore, it is necessary to further improve the structure of the conventional three-stage drawer truck as described above.
[0005]
Further, regarding the problems of the conventional three-stage rail structure as described above, U.S. Pat. Nos. 6,367,899 and 6,412,891 filed and filed by the inventor of the present invention. The previous proposals relating to the above-mentioned and the like are obtained by repeatedly improving the structure of the conventional three-stage rail.
[0006]
[Patent Document 1]
US Patent No. 6,367,899
[Patent Document 2]
US Patent No. 6,412,891
[0007]
The present invention was devised in view of such a problem, and a purpose thereof is to add a positioning assembly and a blocking seat on the first track and the second track, respectively, and the positioning assembly has Since two positioning arms are provided and the positioning arm is provided with an inclined surface and a locking portion, a locking relationship or an unlocking relationship can be selected by the blocking portion of the blocking seat. The track seeks to provide a bi-directional positioning structure for the drawer track, which can be formed to have a bi-directional positioning capability.
[0008]
A first object of the present invention is to add a positioning assembly and a blocking seat on the first track and the second track, respectively, the positioning assembly is provided with two positioning arms, and the positioning arms are associated with inclined surfaces. By providing the stopper, the locking or unlocking relationship can be selected by the blocking portion of the blocking seat, and the first track is formed to have the function of bi-directional positioning. It is an object of the present invention to provide a two-way positioning structure for a drawer track, which can enhance the convenience of use of the drawer.
[0009]
[Means for Solving the Problems]
To achieve the above object, the bidirectional positioning structure of the drawer track according to the present invention is as follows. That is,
It comprises a positioning assembly, a blocking seat and at least one first connecting rod. The positioning assembly is provided on the first track, the positioning assembly is provided with two positioning arms and one elastic member, and the two positioning arms are pivotally attached to the first track so as to face each other and correspond to each other. At least one positioning arm is provided with one inclined surface and one first locking portion, and the elastic member can elastically press the two positioning arms. The blocking seat is provided on the second track, and the blocking seat is provided so that the blocking portion protrudes. At least one first series connecting rod can be slidably provided on the first track to control activation of one or two of the two positioning arms of the positioning assembly. When the first track is pulled forward to the predetermined operation position, the blocking portion of the blocking seat provided on the second track vigorously climbs over the inclined surface of one of the positioning arms of the first track, and Locking between the first locking portions of the positioning arm forms bidirectional positioning.
[0010]
The bidirectional positioning structure of the drawer truck according to the present invention can release the positioning relationship by locking by interlocking the positioning assembly by one first connecting rod provided on the first track. The connecting rod includes one grip, two concave notches and two shoulders, and two positioning arms are provided with a stepped portion and a second locking portion in addition to the stepped portion. Can accommodate the first connecting rod, and the second locking portion can be used to press the shoulder of the first connecting rod. Also, the first connecting rod can be slid by pushing forward and backward, for example, and the first connecting rod is provided with a single recessed portion and a shoulder, and a single shoulder or recessed portion is provided. May be formed so as to abut against the second locking portion of one of the positioning arms by the inclined sides on both sides. In addition, the first series connecting rod is provided with another elastic member so that the first series connecting rod is formed so as to have an elastic repositioning ability, and the two positioning arms of the positioning assembly are formed by the first series connecting rod. By directly interlocking the pivoting of the two, the elastic member for pressing the two positioning arms can be omitted. In addition, the first connecting rod can be supported by a fitting member provided with an elastic member, and the first connecting rod can be formed with a protrusion for locking the elastic member. In addition, one end of the first connecting rod is pivotally connected to the other end of the positioning arm that does not have the first locking portion, so that when the other end of the positioning arm is pulled downward by the first connecting rod, the first connecting rod is simultaneously pulled out. It is also possible to move upwardly in conjunction with one locking portion. Also, the two ends of the two positioning arms of the positioning assembly are extended to form two protruding ears that abut against each other, and the protruding ear pivotally connects one of the positioning arms to the other during rotation. The eccentric rotation of the positioning arm can be synchronously linked. Also, the blocking portion can be formed on the opening end of the second track by direct punching. In addition, a base is provided between the two positioning arms on the inner surface of the first track so that the elastic member is fixed and both ends of the elastic member are provided corresponding to the two positioning arms. It can also be brought into contact with the concave notch. Also, the first track may be provided with another second connecting rod, the second connecting rod includes one grip and one shoulder, and further includes one positioning arm therein. Is provided with another step-shaped part and one third locking part opposite to each other, so that the step-shaped part can accommodate the shoulder part of the second connecting rod, and the third locking part is The shoulder of the second connecting rod can also be used to press. Also, at the opposite ends of the two positioning arms pressed by the first series connecting rod, one or two protruding ears can be omitted, and the two positioning arms are interlocked with each other by an interlocking operation that is not synchronous. Each of the first and second connecting rods may be formed so as to be interlocked with the second connecting rod. Further, the second connecting rod having the grip and the shoulder provided on the first track can be slid by the recessed stepped surface formed on the edge of the base facing the other. In addition, the elastic member provided on the base seat may be formed so that the second connecting rod can be repositioned by elasticity when the protruding body formed on the second connecting rod abuts.
[0011]
[Embodiment of the invention]
An embodiment of the present invention will be described below with reference to the drawings.
[0012]
FIG. 1 is an exploded perspective view of a drawer track according to an embodiment of the present invention in a bidirectional positioning structure, FIG. 2 is a perspective view of a positioning arm of the embodiment of the present invention, and FIG. 3 is a drawer of the embodiment of the present invention. FIG. 4 is a plan view showing an assembled state of the two-way positioning structure of the truck, and FIG. 4 shows that the first track of the two-way positioning structure of the drawer truck according to the embodiment of the present invention is pulled forward to a predetermined operation position. FIG. 5 is a plan view showing a state where the positioning assembly of the drawer track bidirectional positioning structure according to the embodiment of the present invention releases the bidirectional positioning relation of the first track by the first connecting rod. FIG. 6 is a plan view showing a state where the first track is pressed by the second track by the bidirectional positioning structure of the drawer track according to the embodiment of the present invention.
[0013]
Since the members such as the third track 10, the second track 20, the first track 10, and the slide assist member 40 of the bidirectional positioning structure of the drawer truck of the present invention are the same as the conventional three-stage drawer truck structure, Since the same parts of the two members are marked with the same reference numerals, their structure and functions will not be described again in detail. At the same time, in the following description, the opening end and the end of the third track 10 are defined as the front end and the rear end of the track, respectively, to further limit the relative position and the assembling relation of each member.
[0014]
Referring to FIGS. 1, 2, and 3, the bi-directional positioning structure of the drawer truck of the present invention includes a positioning assembly 50, a blocking seat 60, and a first connecting rod 70. The positioning assembly 50 and the first connecting rod 70 are provided at appropriate positions on the inner surface of the first track 30 (inner track), and the blocking seat 60 is provided at the open end of the second track 20 (middle track). The one track 30 and the second track 20 can be slidably fitted to the third track 10 by at least one sliding assist member 40.
[0015]
Referring again to FIGS. 1, 2, and 3, the positioning assembly 50 of the present invention mainly includes two positioning arms 51, 51 ', one elastic member 52, one base 53, and two pivot members 54. Are provided on each of the two positioning arms 51, 51 ', one inclined surface 511, 511', one first locking portion 512, 512 ', one step-shaped portion 513, 513', and one Two locking portions 514, 514 'and one concave notch 515, 515' are included. Both ends of the elastic member 52 can abut against the two positioning arms 51 and 51 ′ by elasticity, and the base 53 is used to fix the elastic member 52 inside the first track 30 and the elastic member 52. Can be located between the two positioning arms 51, 51 '. Furthermore, the two pivoting members 54 can pivotally pivot the two positioning arms 51, 51 'on the first track 30 in a corresponding and opposed manner. In addition, the inclined surfaces 511 and 511 ′ of the two positioning arms 51 and 51 ′ can pivotally rotate the two positioning arms 51 and 51 ′ by pressing the blocking seat 60. The two first locking portions 512, 512 'are opposed to each other to form one locking space. The stepped portions 513 and 513 ′ are provided so that the two positioning arms 51 and 51 ′ are recessed on one side toward the first track 30, and accommodate the first series connecting rod 70 and the first series connecting rod 70. Are formed to have sufficient operating space. The second locking portions 514, 514 'are formed at appropriate positions of the steps 513, 513', and the edges of the second locking portions 514, 514 'are formed by the two shoulders of the first connecting rod 70. 73 can be used to abut, so that the positioning arms 51, 51 'can be pivoted. In addition, the concave notches 515 and 515 ′ can be used to elastically lock both ends of the elastic member 55.
[0016]
Referring again to FIGS. 1, 2, and 3, the blocking seat 60 of the present invention is fixed to the open end of the second track 20, and the blocking seat 60 has a blocking portion 61 bent toward the first track 30. Since the inclined surfaces 511, 511 'of the positioning arms 51, 51' can be brought into contact with the blocking arms 61 in a timely manner, the positioning arms 51, 51 'can be pivoted and rotated. Of the positioning arms 51, 51 'of the second positioning portion 512, 512'.
[0017]
Referring again to FIGS. 1, 2 and 3, the first connecting rod 70 of the present invention is slidably and flatly attached to the first track 30 by at least one support seat 31 of the first track 30. The first series connecting rod 70 includes one grip 71, two concave notches 72, and two shoulders 73. Since the grip 71 can be used by a user to pull the first connecting rod 70 forward or backward with a finger, the first locking portions 512, 512 of the two positioning arms 51, 51 'can be used. The lock relationship formed by 'can be released. When the first series connecting rod 70 is accommodated in the stepped portions 513, 513 'of the two positioning arms 51, 51', the two concave notches 72 are formed with the outer peripheral edges of the second locking portions 514, 514 '. It can be used to formulate. The shoulder 73 is located at the rear end of the concave notch 72, and when the user pulls the first series connecting rod 70 forward or pushes it backward, the shoulder 73 allows the two positioning arms 51, 51 ′ to move. Since it can abut on the edge of the second locking portion 514, 514 '(or, using the inclined sides on both sides of the concave notch 72, abut on the edge of the second locking portion 514, 514') , The positioning arms 51, 51 'can be pivoted and rotated.
[0018]
Referring to FIGS. 3, 4, 5, and 6, an operation diagram of the two-way positioning structure of the drawer truck of the present invention is provided.
[0019]
Referring to FIG. 3, at the time of assembly, the positioning assembly 50 of the present invention is pivotally mounted on the first track 30 (inner track), and the first track 30 is sequentially connected to the second track 20 (middle track) and the third track 10. It is fitted on. In such a state, the two positioning arms 51 and 51 ′ are biasedly rotated until the upper edge of the side plate 32 of the first track 30 is locked by the action of the elastic member 52. The first connecting rod 70 is partially accommodated in the stepped portions 513, 513 'of the two positioning arms 51, 51', and the two concave notches 72 of the first connecting rod 70 are exactly two It is formed so as to mix with the outer peripheral edge of the two locking portions 514, 514 '.
[0020]
Referring to FIG. 4, when the user pushes the first track 30 forward to a predetermined operation position, the blocking portion 61 of the blocking seat 60 on the second track 20 is first closer to the front end of the track of the first track 30. Since the positioning unit 51 hits one positioning arm 51, and then the blocking unit 61 presses the inclined surface 511 of the positioning arm 51, the positioning arm 51 pivots clockwise in a counterclockwise direction to rotate at a certain angle. The blocking portion 61 can smoothly move over the positioning arm 51 and is immediately stopped by the locking of the first locking portion 512 ′ of the other positioning arm 51 ′, and at the same time, the front end of the track of the first track 30. After the positioning arm 51 which is close to the position has passed over the blocking portion 61, it is formed so as to return to its original position by the elasticity of the elastic member 52. As described above, in the present invention, the first track 30 is scheduled in both directions by locking the blocking portion 61 in both directions by the first locking portions 512, 512 'of the two positioning arms 51, 51'. , The convenience of using the drawer truck can be reliably increased.
[0021]
Referring to FIGS. 5 and 6, when the user tries to push the first track 30 into the second track 20, the user pulls the first connecting rod 70 forward (or pushes backward) by the grip 71. Two-way operation is possible), the two shoulders of the first connecting rod 70 (or the inclined sides on both sides of the concave notch 72) are the second locking portions 514 of the two positioning arms 51, 51 ', 514 'is formed to press against the edge, and then when pressed to the predetermined operating position, the blocking portion 61 of the blocking seat 60 in the second track 20 first closes to the front end of the track of the first track 30. The positioning arm 51 is bumped, and then the two positioning arms 51, 51 ′ are formed so as to pivot oppositely toward the upper edge of the first track 30. This allows the user to release the two-way locking relationship between the two positioning arms 51, 51 'and the blocking portion 61, so that the first track 30 can be smoothly moved backward to the inside of the second track 20. Can be pushed (or the first track 30 is disengaged from the second track 20 forward), and finally when the user is released from the grip 71, the two positioning arms 51, 51 'and the first connecting rod 70 become Due to the elasticity of the elastic member 52, it can be restored to the original unoperated state.
[0022]
Referring again to FIGS. 1, 2, and 3, two opposing ends of the two positioning arms 51 and 51 'of the positioning assembly 50 of the present invention are provided with, for example, two projecting ears 516 and 516' extending and abutting each other. As a result, the shoulder 73 of the first connecting rod 70 only presses the second locking part 514 ′ of one of the positioning arms 51 ′ so that the two protruding ears 516, 516 ′ come into contact with each other. Due to the contacting relationship, the lower one of the positioning arms 51 pivots and pivots in synchronism with that of the other positioning arm 51 when the lower one presses the other upward. Can be.
[0023]
Alternatively, the blocking portion 61 of the blocking seat 60 can be formed directly on the opening end of the second track 20 by punching. By omitting the base 53 in the positioning assembly 50, the elastic member 52 can be fixed directly on the first track 30.
[0024]
In addition, for example, by installing an elastic member also on the first series connecting rod 70 itself, the operation of repositioning by the elasticity of the first series connecting rod 70 is further ensured. Referring to FIG. 7, the first track 30 is formed so as to support the first connecting rod 70 by the fitting member 80 provided with the elastic member 81, and the elastic member 81 is locked to the first connecting rod 70. Is formed, the elastic member 81 can be pressed and compressed, and the ability to return to the first connecting rod 70 can be provided. In addition, referring to the part a of FIG. 7, for example, by changing the working end (shoulder 73) of the first connecting rod 70 to the positioning arm 51 ′, the working end of the first connecting rod 70 is moved to the positioning arm 51 ′. Is pivotally attached to the other end not having the first locking portion 512 ′, and the other end of the positioning arm 51 ′ is downwardly moved by the first series connecting rod 70 with the pivoting member 54 as a support shaft according to the leverage principle. By being pulled, the first locking portion 512 ′ can be interlocked to move upward, and the other positioning arm 5 is synchronized by the relation of the two protruding ears 516 ′ and 516 abutting each other. Since the rotation of the two positioning arms 51 and 51 'can be released in the same manner, the locking operation of the two positioning arms 51 and 51' can be released. The two positioning arms 51 and 51 ′ of the positioning assembly 50 do not have the elastic member 52 and the base 53, for example, and the two positioning arms 51 and 51 ′ are directly provided by the elastic member 81 attached to the first connecting rod 70. The repositioning and pivoting by elasticity can be performed by linking 51 and 51 '. In addition, the drawer truck bi-directional positioning structure of the present invention can be used for other standard drawer trucks depending on the use demand, for example, a two-stage drawer truck, or other drawer trucks. It can be used for telescopic and slidable trucks.
[0025]
In the above-described embodiment, the two positioning arms 51 and 51 ′ of the positioning assembly 50 mainly use the two shoulders 73 (or the inclined sides on both sides of the recess 72) of the first connecting rod 70. Abuts the second locking portions 514, 514 'of the two positioning arms 51, 51', or by interlocking with the two protruding ears 516, 516 'of which the opposing ends of the two positioning arms 51, 51' abut. By controlling the synchronous operation of the two positioning arms 51, 51 'by one first connecting rod 70 and releasing the locked state, the first track 30 slides back and forth in both directions. Or withdraw from the second track 20. However, the above-described embodiment is not the only main design of the present invention, and the inventor of the present invention has devised a model for releasing the locked state in the front and rear directions, respectively. I will continue to explain.
[0026]
Referring to FIG. 8, a second connecting rod 90 is provided on the first track 30, and the second connecting rod 90 includes one grip 91 and one shoulder 92. Referring to FIG. 9, the positioning arm 51 ′ is provided with a stepped portion 517 ′ and a third locking portion 518 ′ in addition to the second connecting rod 90. The shoulder 92 of the connecting rod 90 can be accommodated, and the third locking portion 518 ′ can be used to abut the shoulder 92 of the second connecting rod 90. Further, the first connecting rod 70 is provided with a single concave portion 72 and a shoulder portion 73, and another cut portion thereof is formed by the inclined side on both sides of the single shoulder portion 73 or the concave portion 72. Abuts on the second locking portion 514 of the positioning arm 51 of the arm body. In addition, referring to FIGS. 8 and 10 so that the second connecting rod 90 automatically repositions, the base 53 has a concave stepped surface 531 formed at the edge thereof fitted to the second connecting rod 90. By forming the elastic member 55 in the concave groove 532 formed inside the base 53, the projecting body 93 formed on the second connecting rod 90 is formed. And the second connecting rod 90 can be repositioned by elasticity.
[0027]
By arranging the second connecting rod 90 and the first connecting rod 70 in such an embodiment in combination, it is possible to control the operation of the two positioning arms 51 and 51 ′ respectively. Referring to FIG. 11, when the first series connecting rod 70 is pressed (pressed in the direction shown or in the opposite direction), one shoulder 73 (or one side of the recess 72 is inclined) becomes The positioning arm 51 is formed so as to abut the edge of the second locking portion 514 of the positioning arm 51, and the positioning arm 51 is formed so as to pivot independently. Can be released, so that the first track 30 can be pressed into the second track 20. However, in such a state, the first locking portion 512 ′ of the other positioning arm 51 ′ is blocked by the blocking portion 61, so that a single-direction locking is formed. It is not possible to disengage from the second track 20 forward, i.e. not only to prevent the first track 30 from being pulled to the limit, but also automatically between the two positioning arms 51, 51 '. It can be locked, and when the first series connecting rod 70 is operated to return the first track 30, it is possible to prevent the first track 30 from being accidentally pulled out, so that the first track 30 is accidentally detached from the second track 20. Can be prevented. In such a design, when the first track 30 is to be detached from the second track 20 so as to be detached from the second track 20, the second connecting rod 90 must be operated. As described above, when the second connecting rod 90 is pushed and moved, the shoulder portion 92 of the second connecting rod 90 presses the third locking portion 518 'of the positioning arm 51', thereby causing the positioning arm 51 'to rotate. The two positioning arms 51, 51 ′ are pivoted around, and furthermore, the projection ears 516 of the other positioning arm 51 ′ are pressed in conjunction with the projection ears 516 ′ of the positioning arm 51 ′, so that the two positioning arms 51, 51 ′ become The first track 30 can be disengaged from the second track or slid back and forth in both directions because it is formed so as to operate synchronously and can release the locking state of the opposing blocking portion 61. It is formed so as to be. In addition, since the unlocking of the first track 30 by pressing the second track 20 against the contraction can be controlled by the first connecting rod 70, the second connecting rod 90 operates as a pair of unlocking related to the positioning arm 51 ′. In this case, the pivoting operation for interlocking the other positioning arm 51 can be omitted. As shown in FIG. 13, by omitting at least one of the protruding ears 516, 516 'at the opposite ends of the two positioning arms 51, 51', the two positioning arms 51, 51 'can be synchronized with each other. Therefore, the two positioning arms 51 and 51 ′ are formed so as to be interlocked with each other by the first connecting rod 70 and the second connecting rod 90, respectively.
[0028]
In addition, the first connecting rod 70 can be installed not only in the form of front and rear sliding in both directions, but also by sliding the connecting rod 70 in a single direction by appropriately installing the locking structure. Is limited, the demand for the basic operation of the user can be met.
[0029]
As described above, there has been a problem that the locking member 301 and the stop member 201 provided in the conventional three-stage drawer truck structure shown in FIG. 14 can provide positioning in only one direction. In the present invention, the positioning assembly 50, the blocking seat 60, the first connecting rod 70, and the second connecting rod 90 can provide a bidirectional positioning function, thereby increasing the convenience of using the drawer truck. be able to.
[0030]
[Effect of the invention]
According to the drawer track bidirectional positioning structure of the present invention, a positioning assembly and a blocking seat are additionally provided on the first track and the second track, respectively, and the positioning assembly is provided with two positioning arms, Since the arm is provided with the inclined surface and the locking portion, the locking relationship or the unlocking relationship can be selected by the blocking portion of the blocking seat, so that the first track has the function of bidirectional positioning. Therefore, there is an advantage that the convenience in using the truck can be enhanced.
[0031]
The present invention may be embodied in other ways without departing from its spirit and essential characteristics. Accordingly, the preferred embodiments described herein are illustrative and not limiting.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a drawer track according to an embodiment of the present invention, which is formed by a two-way positioning structure.
FIG. 2 is a perspective view of the positioning arm according to the embodiment of the present invention.
FIG. 3 is a plan view showing an assembled state of the drawer track according to the embodiment of the present invention by a two-way positioning structure;
FIG. 4 is a plan view of the drawer truck according to the embodiment of the present invention, in which the first track is pulled to a predetermined operation position by the bidirectional positioning structure.
FIG. 5 is a plan view showing a state in which the positioning assembly of the drawer truck according to the embodiment of the present invention has the bidirectional positioning relationship of the first track released by the first connecting rod;
FIG. 6 is a plan view showing a state in which the first track is pressed by the second track by the bidirectional positioning structure of the drawer track according to the embodiment of the present invention.
FIG. 7 is a plan view of a modified example of a connecting rod according to a bidirectional positioning structure of a drawer track according to an embodiment of the present invention.
FIG. 8 is a plan view of another embodiment of the present invention in an assembled state by a two-way positioning structure of a drawer track.
FIG. 9 is a perspective view of a changeable structure by the positioning arm according to the embodiment of the present invention.
FIG. 10 is a perspective view of a change structure by a base according to the embodiment of the present invention.
FIG. 11 is a plan view of the positioning assembly according to the embodiment of the present invention in a state where the positioning of the first track is released by the second connecting rod;
FIG. 12 is a plan view showing a state where the positioning assembly according to the embodiment of the present invention has released the bidirectional positioning relationship of the first track by the connecting rod according to another embodiment;
FIG. 13 is a plan view of the positioning assembly according to the embodiment of the present invention in a state in which protruding ears at the opposite ends of the positioning arm are omitted.
FIG. 14 is an exploded perspective view of a conventional three-stage drawer truck structure.
[Explanation of symbols]
10 Third track 20 Second track
201 Stopper 202 Locking member
30 first track 301 locking member
302 Projection 31 Support seat
32 Side plate 40 Sliding auxiliary member
50 Positioning assembly
51, 51 'Positioning arm
511, 511 'slope
512, 512 'first locking part
513, 513 'stepped part
514, 514 'second locking part
515, 515 'concave notch
516, 516 'protruding ear
517 'Stepped part 518' Third locking part
52 Elastic member 53 Base
531 recessed stepped surface 532 recessed groove
54 pivot member 55 elastic member
60 Blocking seat 61 Blocking section
70 First connecting rod 71 Grip
72 recessed part 73 shoulder
74 projecting body 80 fitting member
81 Elastic member 90 Second connecting rod
91 Grip 92 Shoulder
93 protrusion

Claims (12)

A bi-directional positioning structure for a drawer track comprising a positioning assembly (50), a blocking seat (60) and at least one first connecting rod (70), wherein the positioning assembly (50) comprises a first track ( 30), the positioning assembly (50) is provided with two positioning arms (51, 51 ') and one elastic member (52), and the two positioning arms (51, 51') are opposed to each other. And correspondingly pivotally attached to the first track (30), at least one positioning arm (51, 51 ') having one inclined surface (511, 511') and one first locking portion (512). , 512 ′), the elastic member (52) can press the two positioning arms (51, 51 ′) by elasticity, and the blocking seat (60) is the second track (20). The blocking seat (60) is provided with a blocking portion (61) so as to protrude, and at least one first connecting rod (70) is slidably provided on the first track (30). , One or two of the two positioning arms (51, 51 ') of the positioning assembly (50) can be controlled to operate, and the first track (30) can be moved forward into the predetermined operating position. When pulled, the blocking portion (61) of the blocking seat (60) provided on the second track (20) vigorously tilts one of the positioning arms (51, 51 ') of the first track (30). The two-way positioning is formed by overriding the surface (511, 511 ′) and being locked between the first locking portions (512, 512 ′) of the two positioning arms (51, 51 ′). Withdrawal characterized by Bi-directional positioning structure of the track. The positioning relationship can be released by interlocking the positioning assembly by a single first connecting rod (70) provided on the first track (30). Grip (71), two concave notches (72) and two shoulders (73) are included, and the two positioning arms (51, 51 ') additionally have a stepped portion (513, 513). ') And a second locking portion (514, 514') are provided, and the stepped portion (513, 513 ') can accommodate the first connecting rod (70), and the second locking portion (514). The two-way positioning structure of a drawer truck according to claim 1, characterized in that the shoulder (73) of the first connecting rod (70) can be used for pressing. The first connecting rod (70) can be slid by, for example, pushing forward and backward, and the first connecting rod (70) is provided with a single concave portion (72) and a shoulder (73). And a single shoulder (73) or a concave notch (72) is formed so as to abut against the second locking portion (514) of one of the positioning arms (51) by inclined sides on both sides thereof. 3. The drawer truck bidirectional positioning structure according to claim 2, wherein: Since the first series connecting rod (70) is provided with another elastic member, the first series connecting rod (70) is formed so as to have the ability of repositioning by elasticity, and is positioned by the first series connecting rod (70). By directly interlocking the pivoting of the two positioning arms (51, 51 ') of the assembly (50), an elastic member (55) for pressing the two positioning arms (51, 51') is provided. 2. The drawer track bidirectional positioning structure according to claim 1, wherein the drawer track can be omitted. The first connecting rod (70) can be supported by a fitting member (80) provided with an elastic member (81), and the first connecting rod (70) is used to lock the elastic member (81). 5. The bidirectional positioning structure of a drawer track according to claim 4, wherein a protrusion (74) is formed. One end of the first series connecting rod (70) is pivotally connected to the other end of the positioning arm (51 ') having no first locking portion (512'), so that the other end of the positioning arm (51 ') is in the second position. 2. The drawer truck bidirectional as claimed in claim 1, wherein the first locking portion (512 ') can be simultaneously moved upwardly in conjunction with the pull-down truck when pulled down by the connecting rod (70). Positioning structure. Opposite ends of the two positioning arms (51, 51 ') of the positioning assembly (50) extend to form two projecting ears (516, 516') that abut each other, and the projecting ears (516, 516 '). 2. The method according to claim 1, wherein one of the positioning arms (51 ') is pivotally connected to rotate the other positioning arm (51) in an unbalanced manner during rotation. Two-way positioning structure of the drawer truck. The bidirectional positioning structure of a drawer track according to claim 1, wherein the blocking part (61) can be formed on the open end of the second track (20) by direct punching. The base (53) is provided between the two positioning arms (51, 51 ') on the inner surface of the first track (30), thereby fixing the elastic member (52) and fixing the elastic member (52). 2. Both ends of the drawer truck according to claim 1, wherein both ends of the drawer are brought into contact with concave notches (515, 515 ') provided corresponding to the two positioning arms (51, 51'). Orientation positioning structure. The first track (30) can be provided with another second connecting rod (90), and the second connecting rod (90) has one grip (91) and one shoulder (92). And one of the positioning arms (51 ') is provided with another step-shaped portion (517') and one third locking portion (518 ') so as to be opposed to each other. The shape (517 ') can accommodate the shoulder (92) of the second connecting rod (90), and the third locking part (518') can accommodate the shoulder (92) of the second connecting rod (90). 3. The two-way positioning structure of a drawer track according to claim 1, wherein the pressing mechanism is used for pressing. Opposite ends of the two positioning arms (51, 51 ') pressed by the first series connecting rod (70) can be omitted one or two protruding ears (516), and are not synchronized. The two positioning arms (51, 51 ') are formed so as to be interlocked with the second connecting rod (90) by a first connecting rod (70), respectively, in an interlocking relationship. The bidirectional positioning structure of the drawer track according to claim 10. A second connecting rod (90) having a grip (91) and a shoulder (92) provided on the first track (30) is formed by a concave stepped surface (531) formed at the edge of the base (53). ) Are formed so as to be able to slide by being fitted to each other, and furthermore, an elastic member (55) provided on the base (53) is provided with a projecting body (55) formed on the second connecting rod (90). 11. The drawer truck bidirectional positioning structure according to claim 10, wherein the second connecting rod (90) is formed so as to be able to return by elasticity by contact of the second connecting rod (93).

Images