JP3909243B2 - Slide rail - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is mounted on electronic equipment, and the like, when housing the equipment within the body, such as copiers, relates slide rails to prevent the equipment such as pops out when moving state and the body of the floor surface is there.
[0002]
[Prior art]
A typical structure (conventional example) of a conventional holding function when stored is an elastic material (rubber) in which fitting recesses 7b and 7b are formed in a storing stopper 1b formed on the fixed member 1a as shown in FIG. The housing holding member 7a is formed, and correspondingly, fitting protrusions 8a and 8a that are elastically fitted to the fitting depressions 7b and 7b are formed at the rear end of the moving member 3a. By this, since the rear end surface of the moving member 3a is opened in a state where the moving member 3a is completely stored in the fixed member 1a via the intermediate member 2a, the holding member 7a is stored on the moving side. By fitting into the rear end portion of the member 7a, the fitting convex portions 8a and 8a are elastically fitted into the fitting concave portions 7b and 7b, and the moving side member 3a is held by the fixed side member 1a. It was a thing.
[0008]
According to the above configuration, the relationship between the holding member 7a during storage and the moving member 3a is such that, in use, the moving member 3a is subjected to a load in the direction A as shown in FIG. Since the contact area of the holding member 7a changes in the thickness direction of the slide rail, the stability of the holding force is impaired, and the slide rails are usually used in a pair of left and right, so that the left and right slide rails move. The holding force of the side member 3a is different, which adversely affects the left and right pulling forces, which is not preferable.
In addition, the contact strength between the movable member 3a and the holding member 7a during storage is changed by the load in the B direction (load of the internal device or the drawer, etc.) as shown in FIG.
[0009]
[Problems to be solved by the invention]
The present invention has been made in view of the above problems, and has a simple structure, excellent stability of the holding force of the moving member, and a novel slide that has a retracting function of the moving member. The issue is to provide rails.
[0010]
[Means for solving the problems]
Therefore, in order to solve the above-mentioned problems, the first means of the present invention comprises a fixed member, an intermediate member slidably held on the fixed member, and slidably held on the intermediate member. In the state where the intermediate member and the moving member are stored in the fixed member, the storing member of the moving member is held by the holding member provided at the rear end of the fixed member. In the slide rail, the holding member at the time of storage projects forward from the front end of the connection base portion connected to the fixed side member and the upper and lower bent edges of the fixed side member of the connection base portion, and the sliding surface of the moving side member It is integrally formed of a synthetic resin material from an insertion leg portion that is continuous with the connection base portion so as to be located on the outer side of the base plate, and an engagement leg portion that is continuous with a portion of the movement side member of the insertion leg portion on the substrate side. The insertion leg part is a tapered insertion guide protrusion with a tapered front end that is inserted between the upper and lower bent edges of the intermediate member and the moving member, and the engagement leg part can be changed independently of the insertion leg part. A transition space formed on the connection base portion side of the insertion guide protrusion and a rear end portion of the engagement leg portion that is located on the connection base portion side of the transition space and protrudes into the transition space is integrally connected. The engaging leg is located at the front end of the elastic leg, and the movable member is the fixed member 1. It is comprised from the engagement protrusion engaged with the engagement recessed part formed in the rear-end part of the sliding surface of the movement side member in the state accommodated in the.
[0016]
Next, when the present invention is configured as the second means, in addition to the configuration as the first means , the engaging protrusion has a pull-in inclined surface on the connecting base side, and the engaging recess is the rear end. On the part side, there is a rear inclined surface corresponding to the retracted inclined surface of the engaging protrusion.
[0017]
【Example】
Embodiments will be described below with reference to the drawings.
1 to 2, reference numeral 100 indicates a slide rail. In the embodiment, the slide rail 100 includes a fixed member 1, an intermediate member 2 slidably held by the fixed member 1, and an intermediate member 2. The moving member 3 is slidably held via balls 44... Which are rotatably held by the ball retainer 4.
[0018]
That is, the fixed side member 1 is formed into a channel shape by the base plate 10 and the upper and lower bent edges 11, 11, and rotates to a synthetic resin retainer 12, which is approximately half the length of the fixed side member 1. The intermediate member 2 is slidably held via a plurality of balls 13 which are held freely and are positioned between the inner surfaces of the upper and lower bent edges 11 and 11 and the outer surface of the intermediate member 2.
Then, the rear end portion of the substrate 10 of the fixed-side member 1 is formed stowed stopper 15 of the intermediate member 2 is housed at the holding member 7 of the movable member 3 is attached to the housing when the stopper 15, the substrate 10 A front retainer 16 that restricts the range of movement of the retainer 12 in the pull-out direction is formed at the front end of the intermediate member 2, and a stopper 19 that protrudes toward the substrate 20 of the intermediate member 2 is formed at the intermediate portion of the substrate 10. Yes.
[0019]
The intermediate member 2 is substantially the same length as the fixed member 1 and is formed in a substantially channel shape in the same direction as the fixed member 1 from the base plate 20 and the upper and lower bent edges 21 and 21, and the outer surface of the upper and lower bent edges 21 and 21. Further, the outer surface side ball sliding grooves 22 and 22 on which the balls 13... Roll in the sliding direction are provided, and the balls 44 are formed on the inner surfaces of the upper and lower bent edges 21 and 21 in the sliding direction. Have ball sliding grooves 23, 23 on which. The rear end portions of the upper and lower bent edges 21, 21 are in contact with the rear end of the retainer 12, which is in contact with the retainer front stopper 16 of the stationary member 1 when the intermediate member 2 is pulled out. The post-retainer stoppers 25 and 25 for restricting the maximum pull-out amount of the intermediate member 2 are formed, and the rear end portion of the substrate 20 corresponds to the stopper portion 19 of the stationary member 1 and the rear end portion is the rear end of the substrate 20. A lock member 9 protruding outward from the end is attached, and a guide member 5 is provided at the front end of the substrate 20.
[0020]
The moving side member 3 is formed to be approximately the same length as the fixed side member 1 and is slidable through balls 44... Held by the ball retainer 4. It is formed in a substantially C-shaped cross section from the upper and lower bent edges 31 and 31 having the sliding surfaces 33 and 33 of the balls 44 in the longitudinal direction of the outer surface and the substrate 30 formed by bending both ends in an outward arc shape. ing.
A stopper recess 35 is formed at the rear end portion of the substrate 30 and a stopper member (not shown) is provided at a predetermined position on the inner surface. The stopper member engages with a part of the guide member 5 and stops after reaching the position. After that, the stopper member is released from the stopper state, and can be extracted from the intermediate member 2 or mounted. It has become.
[0021]
The ball retainer 4 is a belt-shaped metal plate that is about half the length of the intermediate member 2, a U-shaped substrate 40 sized to be inserted between the intermediate member 2 and the substrates 20, 30 of the moving member 3, and a U-shaped It protrudes in an L shape from both ends of the substrate 40, and is formed in a substantially U-shaped cross section from upper and lower protruding edges 41, 41 positioned between the upper and lower bent edges 21, 21, 31, 31 of the intermediate member 2 and the moving member 3. A plurality of balls 44... Are rotatably held in the sliding direction of the upper and lower protruding edges 41, 41.
Then, in a state where the moving side member 3 has reached the maximum drawing position, a front end portion abuts on the guide member 5, and a part of the guiding member 5 is drawn in a state where the moving side member 3 is pulled forward from the intermediate member 2. Retained.
[0022]
The guide member 5 includes a mounting board positioned at the front end of the board 20 of the intermediate member 2, upper and lower ball sliding grooves 23, 23 of the intermediate member 2, and sliding surfaces 33, 33 of the balls 44 of the moving member 3. It is integrally formed of a synthetic resin material, such as a guide protrusion located between them, a retainer holding part located at the rear end of the mounting substrate, and an engagement protrusion engaged with the stopper stopper member. .
[0023]
The storage holding member 7 (FIGS. 3, 7, and 8) includes a connection base 71 connected to the rear end of the fixed member 1 and upper and lower bent edges 11 and 11 of the fixed member 1 of the connection base 71. The fitting leg portions 72, 72 projecting forward from the front surface of the side end portion and connected to the coupling base 71 so as to be located outside the sliding surfaces 33, 33 of the movable member 3, and the fitting leg portions 72, 72 The movable leg member 3 is integrally formed of a synthetic resin material from engaging legs 8 and 8 that are connected to a part of the board 30 side.
[0024]
The coupling base 71 has a fitting hole 711 into which the stopper 15 is fitted when the stationary member 1 is housed. The coupling base 71 has a fixed side at the end of the coupling member 71 on the upper and lower bent edges 11 and 11 side of the stationary member 1. The member 1 protrudes in the direction of the end of the upper and lower bent edges 11, 11 from the substrate 10 side end of the member 1, and the end is bent at the upper and lower bent edges 11, 11 while the holding member 7 is connected to the stationary member 1. Are formed integrally with elastic inclined blade pieces 713 and 713 that come into contact with the inner surface of the end portion of the holding member 7 and prevent the holding member 7 from being removed from the stopper 15 during storage.
[0025]
Hereinafter, since the fitting leg parts 72 and 72 and the engagement leg parts 8 and 8 are symmetrically formed, only one side will be described.
The insertion leg 72 has an insertion guide protrusion 721 whose front end is tapered so as to be securely inserted between the upper and lower bent edges 21 and 31 of the intermediate member 2 and the movement member 3 when the movement member 3 is stored. The transition space 722 formed on the connection base 71 side of the insertion guide protrusion 721 and the connection of the transition space 722 so that the engagement legs 8 and 8 can be changed even independently of the insertion leg 72. It has a transition leg portion 723 that is located on the base 71 side and protrudes into the transition space 722 so that the rear end portion of the engagement leg portion 8 is continuously provided integrally. Is formed.
[0026]
That is, the insertion leg portion 72 can be used when the intermediate member 2 and the movable member 3 are stored even if a slight deviation occurs in the mounting position with respect to the fixed member 1 or the size of the holding member 7 when stored. The insertion guide protrusion 721 having a tapered front end contacts the sliding surface 33 of the ball 44 of the moving member 3 or the ball sliding groove 23 of the intermediate member 2 to connect to the transition leg 723. The base portion 71 is elastically moved in the left-right and up-down directions at the connecting portion, and is securely fitted between the sliding surface 33 of the ball 44 and the ball sliding groove 23.
[0027]
At this time, since the cross-sectional shape is formed in a lateral keyhole shape, there is no change at the location where the change space 722 is located, and the change is made at the connecting portion of the change leg 723 and the connecting base 71. The joint leg 8 also shifts together with the transition leg 723.
[0028]
The engaging leg 8 protrudes in front of the transition leg 723 and is located in the transition space 722, and is located at the front end of the elastic leg 81, and the movable member 3 becomes the fixed member 1. It is comprised from the engagement protrusion 82 engaged with the engagement recessed part 330 formed in the rear-end part of the sliding face 33 of the movement side member 3 in the accommodated state.
The engaging protrusion 82 has a pull-in inclined surface 821 on the connection base 71 side, and a transition guide inclined surface 822 that contacts the corner of the rear end surface of the bent edge 31 when the movable member 3 is stored on the insertion guide protrusion 721 side. have.
The engaging recess 330 has a rear inclined surface 331 corresponding to the retracted inclined surface 821 of the engaging protrusion 82 on the rear end side, and when the movable member 3 is stored, the retracted inclined surface 821 and the rear inclined surface are arranged. The movable member 3 is pulled in the storage direction by the elasticity of the surface 331 and the elastic legs 81.
[0029]
As shown in FIGS. 4, 6, and 8, the locking member 9 has a mounting hole 90 at the rear end portion of the substrate 20 of the intermediate member 2 that is pivotably attached to the substrate 30 side of the moving member 3. The mounting leg which has the up-and-down guide width | variety 910 and 910 which protrudes in the board | substrate 30 direction of the movement side member 3 in the board | substrate 30 direction which is slightly smaller than between the up-and-down bending edges 31 and 31 and is formed in the part. When the portion 91 and the moving member 3 are stored in the intermediate member 2, the rear end surface of the stopper recess 35 of the moving member 3 protrudes toward the substrate 30 of the moving member 3 at the rear end of the mounting leg 91. A movement restricting projection 92 that abuts and moves the intermediate member 2 together with the moving member 3 in the storage direction of the fixed member 1, and the back side of the movement restricting projection 92 (the substrate 10 side of the fixed member 1), Slightly larger than the stopper 19 Between the upper and lower stopper abutting portions 93 and 93 projecting in the direction of the substrate 10 of the stationary member 1 and the upper and lower guide protrusions 910 and 910 of the mounting leg portion 91 with a gap 931 for passing through the mesh, An elastic engaging portion (holding portion) 94 is integrally formed of a synthetic resin material in an arcuate shape opposite to the stopper recess 35 on the substrate 30 side of the moving side member 3. The held portion 70 of the moving member 3 corresponding to the elastic engagement portion (holding portion) 94 has the stopper recess 35 as the engaged portion.
[0030]
The storage holding member 7 and the lock member 9 are configured as described above, and the device from the state in which the movable member 3 and the intermediate member 2 are completely stored in the fixed member 1 (the state shown in FIGS. 5 and 6) When the member is pulled out (when the movable member 3 is slid forward), the rear inclined surface 331 of the engaging recess 330 comes into contact with the retracted inclined surface 821 of the engaging protrusion 82 of the holding member 7 when stored, and is further pulled out. In this way, the engaging projection 82 slides forward until it changes until it contacts the sliding surface 33 of the moving member 3, and at the same time, a held portion (stopper recess 35, engaged portion) 70 of the moving member 3. Is engaged behind the holding portion (elastic engaging portion) 94 of the lock member 9, the intermediate member 2 also slides together with the moving side member 3, and then the holding member 7 and the moving side member 3 during storage. The holding state is released.
[0031]
When the moving member 3 is slid forward together with the intermediate member 2, the passage gap 931 of the lock member 9 passes through the stopper portion 19.
At the same time, the retainer rear stoppers 25, 25 formed at the rear end portions of the upper and lower bent edges 21, 21 of the intermediate member 2 are arranged at the rear end of the retainer 12 that is in contact with the retainer front stopper 16 of the stationary member 1. In contact with each other, the intermediate member 2 stops at the maximum extension state with respect to the stationary member 1.
[0032]
Further, when the devices are pulled out (when the movable member 3 is slid forward), the held portion (stopper recess 35, engaged portion) 70 of the movable member 3 is moved to the holding portion ( The elastic engagement portion 94 is slid forward while pushing toward the substrate 20 side of the intermediate member 32 against the elasticity, and the holding state (engagement state) of the movable member 3 with respect to the lock member 9 is released. The
[0033]
When the rear end edge (lock release portion) 311 of the lower bent edge 31 of the moving member 3 is located on the front side of the lock member 9, the rear end portion of the lock member 9 is rotated downward by its own weight, and the upper side The stopper contact portion 93 of the intermediate member 2 shifts to the front side of the stopper portion 19, and the lower stopper contact portion 93 contacts the part of the post-retainer stopper 25 of the intermediate member 2 to stop the rotation of the lock member 9.
In this state, the stopper contact portion 93 on the upper side of the lock member 9 provided at the rear end portion of the intermediate member 2 contacts the front side of the stopper portion 19 of the stationary member 1, and the retainer rear stoppers 25, 25 are Since it is in contact with the rear end of the retainer 12 that is in contact with the retainer front stopper 16 of the fixed member 1, the intermediate member 2 does not slide alone, and the maximum extension state with respect to the fixed member 1 is maintained. .
[0034]
Further, when the moving member 3 slides forward, the stopper member provided on the moving member 3 engages with the engaging protrusion of the guide member 5 and stops, and the intermediate member 2 is in the maximum extended state. Thus, the moving side member 3 and the intermediate member 2 are kept in the most drawn out state and do not slide unexpectedly.
Then, by releasing the stopper state of the stopper member, the moving member 3 can be extracted from the intermediate member 2 or can be slid in the storage direction.
[0035]
Next, when the stopper state of the stopper member is released and the moving member 3 is slid in the storing direction with respect to the intermediate member 2, the moving member 3 is moved in a state where the moving member 3 is almost stored in the intermediate member 2. The rear end edge (lock release portion) 311 of the lower bent edge 31 of the side member 3 pushes the mounting leg portion 91 of the lock member 9 and the lower surface of the lower guide protrusion 910 upward, and moves the stopper contact portion 93 upward. And the intermediate member 2 is unlocked by positioning the passage gap 931 of the lock member 9 on the front side of the stopper portion 19.
[0036]
At this time, if there is momentum in the sliding speed of the moving member 3, the holding portion (elastic engagement portion) 94 of the lock member 9 is moved to the holding portion (stopper recess 35, engaged member) of the moving member 3 almost simultaneously. 70) overcomes the elasticity and rides backward, and the rear end surface of the stopper recess 35 (held portion, engaged portion 70) abuts against the movement restricting projection 92 of the lock member 9. Then, the intermediate member 2 is slid together.
[0037]
Immediately before the moving member 3 is housed in the fixed member 1, the rear end portion of the sliding surface 33 of the ball 44 of the moving member 3 passes through the insertion guide protrusion 721 (at this time, the holding member 3 is held). Even if there is a slight deviation in the mounting position of the member 7 with respect to the stationary member 1 or the molding size of the holding member 7 during storage , it is changed by the insertion guide protrusion 721 having a tapered front end. The insertion guide leg 72 is elastically shifted in the left-right and up-down directions at the portion where the connecting leg 723 and the connecting base 71 are connected, and at the same time, the engagement leg 8 is also shifted to a predetermined position to ensure that the ball 44 is securely moved. The rear end portion of the sliding surface 33 of the ball 44 of the moving side member 3 is in contact with the transition guide inclined surface 822 of the engaging protrusion 82 and is elastic. The engaging protrusion 82 is moved against the elasticity of the leg 81. However, the rear inclined surface 831 of the engaging recess 330 comes into contact with the retracted inclined surface 821 of the engaging protrusion 82, and the movable member 3 is moved by the elasticity of the retracted inclined surface 821 and the elastic leg 81. Pulled in the storage direction.
[0038]
(At this time, since the fitting leg 72 is fitted between the upper and lower bent edges 21 and 31 of the intermediate member 2 and the moving member 3, the transition leg 723 cannot be changed, and the elastic leg 81 is not changed. Therefore, the size of the engagement protrusion 82 is shorter than that of the transition leg 723 and the connecting base 71, resulting in stronger elasticity. Pull the moving member 3 securely.)
Next, the rear end surface of the lock member 9 or the rear end edge of the movable member 3 abuts a part of the holding member 7 when the fixed member 1 is stored, and the intermediate member 2 is fixed together with the movable member 1. 1 is stored. (The state shown in FIGS. 5 and 6)
[0039]
On the other hand, when the devices are gently stored (when the moving member 3 slides gently), the rear end edge (lock release portion) 311 of the lower bent edge 31 of the moving member 3 is By pushing the lower surface of the mounting leg portion 91 upward, the stopper contact portion 93 is moved upward, and the passage gap 931 of the lock member 9 is positioned on the front side of the stopper portion 19, so that the intermediate member 2 is locked. In the released state, the rear surface of the held portion (stopper recess 35, engaged portion) 70 of the moving member 3 contacts the holding portion (elastic engaging portion) 94 of the lock member 9, and the intermediate member 2 moves. The locking member 9 slides with the side member 3, passes through the stopper portion 19, and is accommodated in the stationary member 1. Eventually, the rear end surface of the locking member 9 is one of the holding members 7 during storage. Abut against the part, Sliding between member 2 is stopped.
[0040]
Next, the holding portion (stopper recess 35, engaged portion) 70 of the moving member 3 gets over the holding portion (elastic engaging portion) 94 of the lock member 9 against the elasticity and engages backward, At the same time, the rear end surface of the stopper recess 35 (held portion, engaged portion 70) comes into contact with the movement restricting protrusion 92 of the lock member 9 and stops, so that the moving side member 3 is completely stored in the intermediate member 2, and the intermediate member 2 is housed in the fixed member 1.
[0041]
【The invention's effect】
According to the first aspect of the present invention, the insertion leg portion is provided so as to be located outside the sliding surface of the moving member, and the engagement leg portion is connected to a part of the insertion leg portion on the substrate side of the moving member. The insertion leg is provided with an insertion guide protrusion that contacts the sliding surface of the moving member at a position in front of the engagement protrusion of the engagement leg and shifts the engagement leg to a predetermined position. When the intermediate member and the moving member are stored, the insertion guide protrusions are inserted into the moving member even when the intermediate member and the moving member are stored, even if there is a slight deviation in the mounting position with respect to the fixed member or the dimension when the holding member is stored. Is inserted between the upper and lower bent edges of the intermediate member, so that it is elastically moved in the left and right and up and down directions and is securely inserted between the sliding surface of the ball of the moving member and the intermediate member and the sliding groove of the ball. At this time, the engaging leg portion also shifts to a predetermined position together with the shifting leg portion, and the engaging protrusion reliably pulls the moving side member.
At this time, since the insertion leg portion is inserted between the upper and lower bent edges of the intermediate member and the moving side member, the transition leg portion cannot be changed, and the elastic leg portion is changed at the connecting portion with the transition leg portion. In other words, the size of the engaging protrusion is shortened and the elasticity is increased, and the moving member is reliably pulled in, as compared with the case where the shifting leg and the connecting base are shifted.
According to the second aspect of the present invention, the movable member is pulled in the storing direction by the elasticity of the pull-in inclined surface, the rear inclined surface, and the elastic legs.
[Brief description of the drawings]
1 is a perspective view of the present invention. FIG. 2 is a cross-sectional view taken along line AA of FIG. 1. FIG. 3 is a perspective view of a holding member when stored. FIG. 4 is a perspective view of a lock member. FIG. 6 is a front view of the main part cut out in the housed state. FIG. 6 is a cross-sectional view of the main part taken along the line CC in FIG. Fig. 9 is a cross-sectional view of the main part of the EE line. Fig. 9 is a front view of the intermediate member locked. Fig. 10 is a front view of the intermediate member unlocked. FIG. 12 is a cross-sectional view of an essential part of a slide rail using a conventional holding member during storage.
DESCRIPTION OF SYMBOLS 1 Fixed side member 10 Board | substrate 11 Bending edge 19 Stopper part 100 Slide rail 2 Intermediate member 20 Board | substrate 21 Bending edge 3 Moving side member 30 Board | substrate 311 Stopper release part 33 Sliding surface 330 Holding part at the time of accommodation (engagement recessed part)
35 (70) engaged portion (held portion)
4 Ball Retainer 7 Holding Member 71 Connection Base 72 Inserting Leg 721 Inserting Guide Projection 8 Engaging Leg 81 Elastic Leg 82 Engaging Protrusion 821 Retracting Inclined Surface 9 Locking Member 93 Stopper Attaching Part 94 Holding Part (Elastic Engagement) Joint)

Claims (2)

It consists of a fixed member, an intermediate member that is slidably held by the fixed member, and a moving member that is slidably held by the intermediate member. The intermediate member and moving member are stored in the fixed member. In the state, in the slide rail in which the storage state of the movable member is held by the storage member provided at the rear end of the fixed member, the storage member is connected to the fixed base member. An insertion leg that protrudes forward from the front surface of the end of the upper and lower bent edges of the fixed base member of the connection base and that is connected to the connection base so as to be located outward of the sliding surface of the moving member; A front end portion that is integrally formed with a synthetic resin material from an engaging leg portion that is continuous with a part of the substrate side of the moving member of the moving member, and the fitting leg portion is fitted between the upper and lower bent edges of the intermediate member and the moving member. A tapered insertion guide projection, a transition space formed on the coupling base side of the insertion guide projection so that the engagement leg can be shifted independently of the insertion leg, and a coupling base of the transition space A rear end portion of an engaging leg projecting into the transition space, the rear end portion of the engaging leg portion being integrally connected, the engaging leg portion projecting forward of the transition leg portion, and the transition space. An elastic leg located inside, and a member formed at the rear end of the sliding surface of the moving member in a state where the moving member is housed in the fixed member 1 at the front end of the elastic leg. A slide rail characterized by comprising engaging protrusions engaging with the mating recesses . The engaging protrusion has a pull-in inclined surface on the connecting base side, and the engaging recess has a rear inclined surface on the rear end side corresponding to the pull-in inclined surface of the engaging protrusion. The slide rail according to claim 1.

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