TWM651287U - Disc seat mechanism - Google Patents

Abstract

A disk base mechanism includes a disk body unit, an installation unit, and a reset unit. The tray unit includes a tray hole rim defining a mounting hole. The mounting unit includes a mounting seat extending downward from the edge of the plate hole, a knob inserted into the mounting seat axially up and down and rotatable relative to the mounting seat, and a top cover disposed on the knob. The knob can be operated to lock or unlock. When locked, the knob supports the top cover so that the top cover cannot move downward and covers the installation hole. When unlocked, the top cover is lower than the edge of the plate hole, and the mounting hole is exposed. The reset unit is connected between the mounting base and the knob, and can provide a driving force for the knob to lock. This new model has the safety function of automatically locking when not in operation.

Description

Tray mechanism

The present invention relates to an infant product, in particular to a tray seat mechanism of a walker.

Referring to Figures 1 to 3, the applicant has previously applied for a tray mechanism as shown in Figures 1 to 3, which is used in conjunction with other components/mechanisms to form a walker suitable for use by a young child.

The tray base mechanism includes a tray unit 11 and several mounting units 12 connected to the tray unit 11 . The installation units 12 are suitable for respectively mounting several objects 13 therein. Since the structures of the installation units 12 are the same as each other, and the engaging structures of the objects 13 are the same, one of the installation units 12 and one of the objects 13 will be used as representatives in the following description.

The mounting unit 12 includes a mounting base 14 integrally extending downward from the tray unit 11 , a knob 15 inserted in the mounting base 14 , a spring 16 disposed in the knob 15 , and a spring 16 disposed in the knob 15 . Top cover 17 on spring 16.

The mounting base 14 is formed with a plurality of limiting grooves 141 . Each limiting groove 141 extends in an arc direction and is open laterally. The limiting grooves 141 can respectively allow the two blocking blocks 131 of the object 13 (due to the symmetry, only one is shown in FIG. 1 ) to be clipped in or out.

The knob 15 includes a button ring portion 151 that is supported on the mounting base 14 , a button body portion 152 that extends downward from the button ring portion 151 and protrudes downward from the mounting base 14 , The ring portion 151 extends upward and surrounds the ring body portion 153 of the spring 16 , and a plurality of protruding block portions 154 extend upward from the button ring portion 151 and are arranged arcuately spaced apart from each other outside the ring body portion 153 . A positioning protrusion 155 is formed on the top of each protrusion 154 .

The top cover 17 includes a laterally extending and disk-shaped cover top 171 , and an annular cover bottom 172 extending downward from the cover body. The cover bottom 172 is formed with a plurality of notches 173 having shapes corresponding to the protruding portions 154 and capable of receiving the protruding portions 154 respectively, and a plurality of positioning notches 174 .

The knob body 152 of the knob 15 can be locked or unlocked by a user's manual rotation operation. When locked, the protrusions 154 of the knob 15 and the notches 173 of the top cover 17 are misaligned and aligned. As shown in FIG. 3 , the protrusions 154 cooperate to support the bottom 172 of the cover, so that the top cover 17 cannot be pressed down relative to the mounting base 14 . At this time, the top cover 17 covers the limiting grooves 141 of the mounting base 14 . The knob 15 can be unlocked by rotating the knob 15 to align the protrusions 154 with the notches 173 . When unlocked, the top cover 17 can be pressed down relative to the mounting base 14, and the limiting grooves 141 can be exposed, thereby allowing the corresponding blocking blocks 131 of the object 13 to be inserted.

The shortcoming of this kind of plate base mechanism is that if the object 13 accidentally detaches from the mounting base 14, although the spring 16 can push the top cover 17 upward and reset it to close the internal space of the mounting base 14, it cannot move the object 13. The knob 15 is turned to re-lock. As a result, the top cover 17 will move up and down when the child pats it, and there is a risk of pinching the child's fingers when mating with the mounting base 14, which needs to be improved.

The object of the present invention is to improve at least one of the shortcomings of the prior art.

The new disk seat mechanism includes a disk body unit, an installation unit, and a reset unit.

The tray unit includes a tray hole rim defining a mounting hole. The mounting unit includes a mounting seat extending downward from the edge of the plate hole, a knob inserted into the mounting seat axially up and down and rotatable relative to the mounting seat, and a knob disposed on the knob and covering the mounting hole. top cover. The knob can be operated to be rotated along a locking direction and an unlocking direction opposite to each other, so as to change between a locking position and an unlocking position. In the locked position, the knob supports the top cover, and the top cover cannot move downward and covers the installation hole. In the unlocked position, the top cover is lower than the edge of the plate hole, and the mounting hole is exposed. The reset unit is connected between the mounting base and the knob, and can provide a driving force for the knob to move along the locking direction to change to the locking position.

The function of the present invention is that the reset unit can provide the driving force for the knob to change to the locking position, and can drive the knob to change to the locking position when the knob is not operated, so that the top cover cannot move downward to maintain the function. The installation hole is covered, so the new model can produce a safe locking effect when not in operation, and can reduce the risk of pinching children's fingers.

Referring to Figures 4, 5, and 6, an embodiment of the new tray mechanism includes a tray unit 2, a mounting unit 3 connected to the tray unit 2, and a reset unit 4 provided in the mounting unit 3. .

For example, the overall shape and structure of the tray unit 2 can be as shown in Figure 1 of the prior art. However, since the shape of the tray unit 2 can have many changes, only the parts related to the key points of the invention are shown in the drawing. .

The tray unit 2 includes a top tray 21 . The top disk surface 21 includes a disk hole rim 22 . The plate hole edge 22 defines a mounting hole 23 therearound. In other embodiments of the present invention, the tray unit 2 may also include a plurality of tray hole edges 22 , and each tray hole edge 22 defines a respective mounting hole 23 . At the same time, the base mechanism corresponds to a plurality of installation units 3 and a plurality of reset units 4 .

Referring to Figures 5, 6, and 7, the mounting unit 3 includes a mounting seat 31 extending downward from the plate hole edge 22, and a knob inserted into the mounting seat 31 so as to be axially up and down and rotatable relative to the mounting seat 31. 32, and a top cover 33 provided on the knob 32 and covering the mounting hole 23.

The mounting base 31 includes a circular ring-shaped first straight ring portion 311 extending downward from the plate hole edge 22 , and a circular ring-shaped first straight ring portion 311 extending radially inward from the bottom end of the first straight ring portion 311 . The transverse ring portion 312, a circular ring-shaped second straight ring portion 313 extending downward from the inside of the transverse ring portion 312, and a circular ring-shaped second straight ring portion 313 extending radially inward from the bottom end of the second straight ring portion 313. Extended support ring 314 .

The first straight ring portion 311 is integrally connected to the disk hole edge 22 and defines two radially opposite straight slots 311a extending up and down, and two diametrically opposite limiting slots that are respectively connected to the straight slots 311a. 311b. The top end of each straight slot 311a communicates with the mounting hole 23 . Each limiting groove 311b extends in an arc direction, one end of which is connected to a respective straight blocking groove 311a, and the other end is a closed end.

The second straight ring portion 313 includes a plurality of hook block segments 313a with a slight deformation elasticity that can be used for the knob 32 to be locked, and a plurality of limiting blocks located at arcuate intervals beside the hook block segments 313a. Paragraph 313b.

The knob 32 includes a ring portion 321 that is annular and supports the support ring portion 314 of the mounting base 31 , and a support ring that protrudes downward from the button ring portion 321 out of the mounting base 31 . The button body part 322 of the part 314, a limiting part 323 that protrudes radially outward from the button ring part 321 and extends in an arc direction, and several protrusions that are arcuately spaced from each other and project upward from the button ring part 321. portion 324, and a ring body portion 325 located inside the protruding block portions 324 and surrounded by the protruding block portions 324.

The button body part 322 is integrally connected to the button ring part 321 and can be rotated by a user's hand to drive the button ring part 321 to rotate and drive the protruding block parts 324 to move. The limiting portion 323 is located between two limiting block segments 313b that are arcuately spaced from each other in the mounting base 31. The limiting block segments 313b limit the movement range, thereby limiting the rotation angle of the button ring portion 321.

Each protruding block portion 324 includes a top block edge 324a that is spaced above the button ring portion 321 and extends transversely along the arc direction, and a top block edge 324a that extends downward obliquely and connects to the button ring portion 321. The inclined block edge 324b. Each of the top block edges 324a and each of the inclined block edges 324b extend smoothly without protrusions.

The top cover 33 includes a cover top 331 located in the mounting hole 23 to cover and seal the mounting hole 23 , and a cover top 331 extending downward from the center of the bottom surface of the cover top 331 and supporting the protrusions 324 . The cover bottom 332.

The cover bottom 332 is annular, and is formed with a plurality of recesses 333 that are concave upward from the bottom end and can respectively accommodate the protrusions 324 . The shape of the notches 333 corresponds to the shape of the protrusions 324 .

The reset unit 4 includes a first hook 41 integrally extending upward from the button ring portion 321, a second hook 42 integrally extending upwardly from the support ring portion 314, and a hook hooked on the first hook. The elastic member 43 between the member 41 and the second hook member 42. The first hook member 41 and the second hook member 42 are arcuately spaced apart. The elastic member 43 is a spring.

The knob 32 can be rotated by a user's hand to rotate along a locking direction D11 and an unlocking direction D12 that are opposite to each other, and in a locking position as shown in Figures 4, 6 and 7 and in a locking position as shown in Figures 8 and 7. Changes between unlocking positions shown in 9 and 10.

Referring to Figures 4, 6, and 7, in the locked position, the top block edges 324a of the protruding block portions 324 of the knob 32 are supported against the bottom edge of the cover bottom 332 of the top cover 33, and the The protruding block 324 and the notches 333 of the cover bottom 332 are misaligned in the arc direction and cannot be respectively locked into the notches 333 . Since the cover bottom 332 of the top cover 33 is held up and limited by the protrusions 324, the top cover 33 cannot move downward relative to the knob 32 and the mounting base 31, and remains as shown in FIG. 7 The installation hole 23 is covered, and is at the same height and level as the top plate surface 21 . At the same time, the straight slots 311a and the limiting slots 311b of the mounting base 31 are also covered by the cover top 331 of the top cover 33 and are not exposed.

Rotating the knob 32 along the unlocking direction D12 in FIG. 6 can drive the protrusions 324 to be aligned with the notches 333 of the cover bottom 332 of the top cover 33 , and drive the knob 32 to rotate. The first hook 41 on the button ring portion 321 moves away from the second hook 42 along the unlocking direction D12, thereby elongating the elastic member 43 to store the shortened elastic force and causing the knob 32 to Transform to this unlocked position.

Referring to Figures 8, 9, and 10, in the unlocking position, the protrusions 324 are inserted into the notches 333, and the top 331 of the top cover 33 is supported against the transverse ring portion 312 of the mounting base 31. above, and lower than the plate hole edge 22 and the mounting hole 23. At the same time, as shown in Figures 8 and 10, the cover top 331 no longer covers the straight slots 311a and the limiting slots 311b, allowing the The embodiment is suitable for two clamping blocks 91 of an object 9 to be used together. The two clamping blocks 91 are clamped into the straight slots 311a and screwed into the limiting slots 311b to be limited by the mounting base 31, and then are clamped and disposed in the installation. On the base 31 , the cover top 331 of the top cover 33 is engaged at the same time, so that the cover top 331 is maintained lower than the plate hole edge 22 and the mounting hole 23 .

It can be seen from the comparison of Figures 6 and 9 that when the knob 32 is in the unlocking position, the length of the elastic member 43 of the reset unit 4 in Figure 9 is significantly longer than that in Figure 6 (when the knob 32 is in the locked position). length, so the elastic member 43 stores the elastic force to return from Figure 9 to Figure 6 .

In the unlocking position, if the object 9 embedded in the mounting base 31 accidentally falls off, so that the top cover 33 is no longer blocked by the object 9, even if the knob 32 is not manually turned to return When reaching the locking position, the elastic member 43 can also release elastic force due to the tendency to shorten, driving the knob 32 to rotate along the locking direction D11 and automatically return to the locking position, so that the top cover 33 is subject to the protrusions of the knob 32 . The block portion 324 resists and cannot move downward, and the automatic locking maintains the locked state in which the top cover 33 covers the plate hole edge 22 and the mounting hole 23 . Since the top cover 33 is locked and cannot move downward, this embodiment can reduce the risk of the child's fingers being pinched when the top cover 33 cooperates with the mounting base 31 .

Referring to Figures 5, 8, and 11, the second characteristic of this embodiment is that during normal use, when the object 9 is clicked in as shown in Figure 11 and the user releases the knob 32, the elastic member 43 also The elastic force is released to drive the knob 32 to rotate slightly in the locking direction D11, causing the top cover 33 to rise slightly, and the top 331 of the cover cooperates with the mounting base 31 to clamp the object 9. That is to say, in addition to the automatic locking function, the reset unit 4 can also improve the stability of the object 9 stuck in the mounting base 31 .

In addition, the top block edge 324a and the inclined block edge 324b of each protruding block portion 324 extend smoothly without protrusions, which can facilitate the relative sliding movement of the cover bottom 332 of the top cover 33 and the protruding block portions 324, thereby This embodiment is advantageous in that the knob 32 changes between the locked position and the unlocked position.

To sum up, the function of the new disk seat mechanism is that the reset unit 4 can provide the driving force for the knob 32 to change to the locking position, and drive the knob 32 to change to the locking position when the knob 32 is not operated. As a result, the top cover 33 cannot move downward to maintain the state of covering the installation hole 23, thereby producing a safe locking effect when not in operation, and has the effect of reducing the risk of pinching children's fingers.

The above are only examples of the present invention and cannot be used to limit the patentable scope of the present invention. Simple equivalent changes and modifications based on the patentable scope of the present invention and the patent specification should also be considered as the present invention. covered by the patent application.

2: Disk unit 21:Top surface 22: Plate hole edge 23:Mounting holes 3: Installation unit 31:Mounting seat 311: First direct loop department 311a: Straight card slot 311b: Limit slot 312: Transverse ring part 313:Second straight ring part 313a: hook block section 313b: Limit block section 314: Support ring part 32: Knob 321: Button and ring part 322: Button body 323: Limiting part 324:Protruding part 324a: Top block edge 324b: inclined block edge 325: Ring body part 33:Top cover 331: Cover the top 332: cover bottom 333: Notch 4:Reset unit 41:First hook piece 42:Second hook piece 43: Elastic parts 9:Object 91: card block D11: Lock direction D12:Unlocking direction

Other features and functions of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a perspective view illustrating an existing tray mechanism; Figure 2 is an incomplete three-dimensional exploded view illustrating the plate seat mechanism; Figure 3 is an incomplete and partially cutaway cross-sectional view illustrating the disc seat mechanism; Figure 4 is an incomplete perspective view illustrating an embodiment of the new plate seat mechanism, and a knob of this embodiment is in a locked position; Figure 5 is an incomplete three-dimensional exploded view illustrating this embodiment; Figure 6 is an incomplete cross-sectional view, viewed from top to bottom, illustrating that the knob of this embodiment is in the locked position; Figure 7 is an incomplete cross-sectional view, viewed from the side, illustrating that the knob of this embodiment is in the locked position; Figure 8 is an incomplete and partially exploded three-dimensional exploded view, illustrating that the knob of this embodiment is in an unlocked position; Figure 9 is an incomplete cross-sectional view, viewed from top to bottom, illustrating that the knob of this embodiment is in the unlocking position; Figure 10 is an incomplete cross-sectional view, viewed from the side, illustrating that the knob of this embodiment is in the unlocking position; and Figure 11 is an incomplete cross-sectional view, viewed from the side, illustrating that an object is stuck in this embodiment.

2: Disk unit

21:Top surface

22: Plate hole edge

23:Mounting holes

3: Installation unit

31:Mounting seat

311: First direct loop department

311a: Straight card slot

311b: Limit slot

312: Transverse ring part

313:Second straight ring part

313a: hook block section

313b: Limit block section

314: Support ring part

32: Knob

321: Button and ring part

322: Button body

323: Limiting part

324:Protruding part

324a: Top block edge

324b: inclined block edge

325: Ring body part

33:Top cover

331: Cover the top

332: cover bottom

333: Notch

4:Reset unit

41:First hook piece

42:Second hook piece

43: Elastic parts

D11: Lock direction

D12:Unlocking direction

Claims (5)

A plate base mechanism includes: A plate unit includes a plate hole rim defining a mounting hole; A mounting unit includes a mounting base extending downward from the edge of the plate hole, a knob inserted into the mounting base axially up and down and rotatable relative to the mounting base, and a knob disposed on the knob and covering the mounting base. The top cover of the hole, the knob can be operated to be rotated along a locking direction and an unlocking direction opposite to each other, and changes between a locking position and an unlocking position, in the locking position, the knob supports the top cover , the top cover cannot move down and cover the installation hole. In the unlocking position, the top cover is lower than the edge of the plate hole, and the installation hole is exposed; and A reset unit is connected between the mounting base and the knob, and can provide a driving force for the knob to move along the locking direction to change to the locking position. The disk base mechanism of claim 1, wherein the knob includes a plurality of protrusions spaced arcuately from each other, the top cover includes a cover top covering the mounting hole, and a cover extending downward from the cover top. And the bottom of the cover is supported on the protrusions. The bottom of the cover is formed with a plurality of notches that can respectively accommodate the protrusions. In the locking position, the bottom of the cover is supported by the protrusions. position, the top cover cannot move downward relative to the knob, and the top of the cover covers the installation hole. In the unlocking position, the protrusions are respectively locked into the notches. The disk base mechanism of claim 2, wherein the knob includes a button ring portion that is supported on the mounting base, and a button ring portion protrudes downward from the mounting base and is suitable for a user. The protrusions protrude upward from the button ring part of the button body part for rotation operation. The tray seat mechanism according to claim 3, wherein each of the protruding block portions includes a top block edge that is spaced above the button ring portion and extends transversely along the arc direction, and a top block edge that extends from the top block edge to The edge of the inclined block extends downward and is connected to the button ring portion. Each edge of the top block and each edge of the inclined block extend smoothly without protrusions. The plate base mechanism according to claim 3, wherein the mounting base includes a support ring portion that supports the button ring portion and is used for the button body portion to be inserted, and the reset unit includes a third ring portion disposed on the button ring portion. A hook, a second hook disposed on the support ring, and an elastic member hooked between the first hook and the second hook. The elastic member can constantly drive the knob along the The elastic force that moves in the locking direction to change to the locking position.

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