CN2190438Y

CN2190438Y - Direction adjustable joint device

Info

Publication number: CN2190438Y
Application number: CN 94211923
Authority: CN
Inventors: 林文智
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-04-29
Filing date: 1994-04-29
Publication date: 1995-03-01
Anticipated expiration: 2004-04-29

Abstract

The utility model provides a direction adjustable joint device, comprising primary elements such as a base, a movable arm, a clamping stop piece, a spring, etc., wherein, the movable arm shaft is pivoted on the base and can be rotated, the clamping stop piece and the spring are all arranged on the base, the movable arm makes the unidirectional rotation corresponding to the base through the clamping stop piece and the spring, and the reverse rotation of the movable arm can be prevented by the prop and hold of the clamping stop piece; when the movable arm is rotated to the prearranged angle, the clamping stop piece can push the movable arm reversely, and the movable arm can make the reverse rotation corresponding to the base. The utility model can be used to support two correspondingly rotating objects such as the case cover and the case body of a suitcase, a chair back and a chair face, etc.

Description

Direction adjustable joint device

The utility model is relevant for a kind of joint arrangement of direction-changeable, refer in particular to a kind of at suitcase support arm, backrest ... Deng turning joint, make its be able in set angle to rotate with support and can backward rotation when making it rotate to the precalculated position to the joint arrangement of the direction-changeable of original position.

The structure kind of turning joint is a lot, and the utility model is particularly adjusted at support arm that supports case lid in the suitcase or chair back angle of inclination ... Deng ball and socket structure; See also shown in Figure 1ly, this suitcase is provided with one group of support arm that is supported case lid in

case lid

1 and 2 of case bodies, is that this group support arm of mat supports when this case lid 1 is started, and covers to prevent case lid 1; And these support arms are by 3,4 pivots of two plate bodys together, form one group of joint, the principle of commonly using these support arms mostly adopts concavo-convex frictional force to support leather suitcase cover, its shortcoming is, it is big to raise or cover case lid institute palpus strength, but support force is big inadequately, and can't support in each angle, especially because of frictional force is big, consequently support with the leather trunk articulated section loosening easily therebetween ... etc. many shortcomings; Certainly generally can adjust the seat or the active desktop of backrest angle, also major part all has a joint, adjusts angle and supports backrest pressure, and wherein the kind in these joints is also a lot, and shortcoming is similarly so all arranged.

The purpose of this utility model is to overcome abovely to be commonly used many shortcomings of joint arrangement and a kind of joint arrangement of direction-changeable is provided, its simple structure, can in set angle, rotate and support, especially rotate to behind the predetermined angular can opposite spin to original position and can bear reciprocal strength.

The purpose of this utility model reaches as follows: a kind of joint arrangement of direction-changeable, comprise a pedestal, a lever arm, and it is characterized in that: it also comprises a hooking sheet and a spring; This pedestal comprises two symmetrical plate bodys, and an end of pedestal is provided with first axis hole; Nearly this first axis hole place is provided with second axis hole in addition; One end of this lever arm is provided with round shape position and is provided with an axis hole axle pivot in first axis hole of this pedestal in the center of circle, and this edge, circle shape position is provided with the concavo-convex position of suitable length again, respectively is provided with a darker breach in these two ends, concavo-convex position; The central authorities of this hooking sheet are provided with a circular hole and movable axis pivot on second axis hole of pedestal, and the one end is pointed and place the concavo-convex position of this lever arm, its in addition end articulate with spring, the end in addition of this spring then is fixed on the pedestal.

The purpose of this utility model can also following mode reach: the joint arrangement of described direction-changeable is characterized in that: wherein two of this pedestal symmetrical plate bodys have at least a part to link and make parallel shape.

The joint arrangement of described direction-changeable is characterized in that: wherein the first axis hole periphery of this pedestal is provided with the circular-arc plate body similar to the round shape position of this lever arm.

The joint arrangement of described direction-changeable is characterized in that: wherein this lever arm circle shape position end is provided with one when making it rotate on the pedestal to predetermined angular, forms the protrusion position of card fastening position.

Advantage of the present utility model mainly is a simple structure, both can be used between case body and case lid, also can be used between the chair back of adjustable angle and seat or the support and connection of active desktop.The utility model can rotate in set angle and can support in any angle, and can produce bigger support force.Opposite spin is changed direction easily to original position again after rotating to predetermined angular, need not any other assistor, use very convenient.

The utility model illustrated embodiment in conjunction with the accompanying drawings is described in further detail as follows:

Wherein,

Fig. 1 is a structural representation of commonly using joint arrangement.

Fig. 2 is the three-dimensional exploded view of the utility model one preferred embodiment.

Fig. 3 is the three-dimensional combination figure of the utility model one preferred embodiment.

Fig. 4 to Fig. 8 is a user mode schematic diagram of the present utility model:

At first see also shown in Fig. 2,3,4, one of joint arrangement of the utility model direction-changeable embodiment, it includes a pedestal 10, a lever arm 20, a hooking sheet 30, and main element such as a spring 40; Joint arrangement shown in the figure mainly is that the support arm at the suitcase special use is illustrated, wherein this pedestal 10 is that 11,12 of plate bodys by two symmetries constitute, which is provided with first axis hole 13, second axis hole 14 and hole 16, its mesopore 15 is to be used for a pivot on the case body of suitcase, another hole 16 be for a steady pin 17 fixing and for an end indirect securement of this spring 40 in pedestal 10, certainly this spring 40 also can be directly fixed on the pedestal 10, and the periphery of this first axis hole 13 forms a circle shape position 18; One end of this lever arm 20 also is circular-arc and central part and is provided with an axis hole 21 and can inserts this 18 at two circles shape position and 51 pivots of mat pivot pin of pedestal 10 and rotate on first axis hole 13 of this pedestal 10, the edge at this circle shape position 18 is provided with the concavo-convex position 22 of concavo-convex this dentation of position 22(of dentation of suitable length again, can be equidistant dentation, also can establish the groove of predetermined quantity in the appropriate location) and two ends in the concavo-convex position 22 of this dentation respectively be provided with a

darker breach

23,24, the end of this circular arc dentation jog position 22 then is provided with one and protrudes position 25, and the end in addition of other this lever arm 20 is provided with hole 26 must be for the axle pivot in the case lid of suitcase; The central authorities of this hooking sheet 30 are provided with a circular hole 31 and must rotate on second axis hole 14 on the pedestal 10 for 52 pivots of pivot pin, the one end be provided with pointed position 32 and in addition end be provided with hole 33 ammunition feed spring 40 is fixed; The elastic force of this spring 40 of mat and must make the pointed position 32 of this hooking sheet 30 keep pointing to the axle center of first axis hole 13 of pedestals 10; Wherein the very important point is that the center of circle to the distance of the end at its pointed position 32 of the circular hole of this hooking sheet 30 adds that the radius at the concavo-convex position 22 of dentation of this lever arm 20 should be greater than the distance in

first axis hole

13 and 14 axle center of second axis hole; So textural association just can constitute the joint arrangement of direction-changeable of the present utility model.

See also Fig. 5 to shown in Figure 8, wherein Fig. 5 is the case lid 1 of suitcase and the state that body 2 covers, the pointed position 32 of this hooking sheet 30 just places in the breach 23 of this lever arm 20 and it does not terminally contact with the bottom of breach 23, when case lid 1 is started, this lever arm 20 can be along with rotation, its rotation direction is to be clockwise direction with respect to pedestal 10 to rotate, wherein because of the concavo-convex position 22 of dentation than breach 23 height, so will stir the pointed position 32 of this hooking sheet 30 and make this hooking sheet 30 with pivot pin 51 serve as the axle counter-clockwise direction slightly change an angle, as shown in Figure 6, when suitcase lid 1 stops to raise action, the concavo-convex position 22 of the dentation of this lever arm 20 is subjected to holding of these hooking sheet 30 pointed positions 32 and can't counter-clockwise direction rotates, that is lever arm 20 is produced the counter-clockwise direction strength to the weight that can support this suitcase lid 1 and the moving angle of this lever arm 20 revolutions can both be held support by this hooking sheet 30 rapidly; When desiring to cover this case lid 1, as long as case lid 1 is continued to start, that is this lever arm 20 continues to clockwise rotate to predetermined angle (position as shown in Figure 7) with respect to pedestal 10, the pointed position 32 proper landings of this hooking sheet 30 are to breach 24, and this protrusion position 25 is limited to the bending part 19 of pedestal 10, wherein the end because of pointed position 32 does not touch lever arm 10, so elastic force of this spring 40 of mat and can make this pointed position 32 point to the axle center of first axis hole rapidly, suitcase case lid 1 can cover at this moment, to stir these hooking sheet 30 clockwise directions because of the concavo-convex position 22 of the dentation at these breach 24 places and rotate an angle, as shown in Figure 8, so this lever arm 20 must counterclockwise rotate to position shown in Figure 5 and make case lid 1 cover with respect to pedestal 10, and making the pointed position 32 of this hooking sheet 30 insert again in the breach 23, case lid 1 starts support part and can carry out next time.

What deserves to be mentioned is, above-mentionedly cover process through Fig. 8 to Fig. 5 by Fig. 7, this lever arm 20 only can counterclockwise rotate and can support up time direction Power of Spin, just with aforementioned opposite through the action of Fig. 6 to Fig. 7 by Fig. 5, that is can change its support direction and direction of rotation, so the utility model name is called " joint arrangement of direction-changeable "; The joint arrangement of the utility model direction-changeable is also very good if be used for the angle adjustment of the chair back or the generally turning joint of palpus adjustment angle again, the stiff end of pedestal 10 and lever arm 20 need only be changed slightly to get final product; Simple structure particularly of the present utility model, need not other assistors when changing direction, only lever arm 20 being rotated to default angle just can reverse rotation, very convenient, in the present embodiment, the concavo-convex position 22 of dentation on this lever arm 10 is to be equally spaced dentation position, and the groove that certainly also can change the tooth pitch of per tooth according to need or predetermined quantity only is set on the edge at this circle shape position gets final product; For example, location during 60 ° of this lever arm 20 predetermined rotations then can be in this circle shape position apart from breach 23 rotates 60 ° and locates to establish a groove and get final product.

Claims

1, a kind of joint arrangement of direction-changeable comprises a pedestal, a lever arm, it is characterized in that: it also comprises a hooking sheet and a spring; This pedestal comprises two symmetrical plate bodys, and an end of pedestal is provided with first axis hole; Nearly this first axis hole place is provided with second axis hole in addition; One end of this lever arm is provided with round shape position and is provided with an axis hole axle pivot in first axis hole of this pedestal in the center of circle, and this edge, circle shape position is provided with the concavo-convex position of suitable length again, respectively is provided with a darker breach in these two ends, concavo-convex position; The central authorities of this hooking sheet are provided with a circular hole and movable axis pivot on second axis hole of pedestal, and the one end is pointed and place the concavo-convex position of this lever arm, its in addition end articulate with spring, the end in addition of this spring then is fixed on the pedestal.

2, the joint arrangement of direction-changeable as claimed in claim 1 is characterized in that: wherein two of this pedestal symmetrical plate bodys have at least a part to link and make parallel shape.

3, the joint arrangement of direction-changeable as claimed in claim 1 is characterized in that: wherein the first axis hole periphery of this pedestal is provided with the circular-arc plate body similar to the round shape position of this lever arm.

4, the joint arrangement of direction-changeable as claimed in claim 1 is characterized in that: wherein this lever arm circle shape position end is provided with one when making it rotate on the pedestal to predetermined angular, forms the protrusion position of card fastening position.