TWI686261B - Telescopic cover - Google Patents

Abstract

The invention relates to a telescopic protective cover, which comprises: a plurality of cover bodies, which are sequentially sleeved according to their sizes, and the first cover body located at the foremost end of the telescopic protective cover has the largest size; the cover bodies can be linked with each other Collapsed by stretching; the first cover has: a cover plate and an upright plate, the upright plate is fixed on the front end of the cover plate, and its periphery protrudes from the outer periphery of the cover plate, thereby forming an outer edge ; An actuating plate, which is used to be fixed on the movable part of the mechanical equipment; a holding groove, which is recessed inwardly from the peripheral edge of the actuating plate; a convex wall, located behind the holding groove; outside the first cover The flange is accommodated in the groove of the actuating plate, and the depth of the groove is greater than the thickness of the outer edge; when the actuating plate is displaced, the convex wall pushes the outer edge of the first cover body to drive the The first cover is displaced. Thereby, when the telescopic protective cover is assembled in a mechanical device, it can slide smoothly.

Description

Telescopic cover

The present invention relates to a dust-proof article used in a processing machine or a mechanical device. Specifically, it refers to a telescopic protective cover.

All kinds of processing machinery will produce cutting chips when cutting the workpiece. When the chips fall on the sliding rail part for the machining mechanism to slide, the sliding rail will be damaged and the error will increase. To solve this deficiency, a dust-proof telescopic cover can be connected to the processing mechanism and cover the slide rail so that the processed chips will not fall on the slide rail to ensure the cleanliness and accuracy of the slide rail parts.

Please refer to FIG. 1, which shows a conventional telescopic protective cover 10. The telescopic protective cover 10 has a plurality of cover bodies 12 that decrease in size or increase in size, and are nested with each other. Each of the cover bodies has a riser 14 connected to each other. With a cover plate 16, the outer end of the vertical plate 14 protrudes from the cover plate 16 to form a flange 141. The rear end of the last cover 12d of the telescopic protective cover 10 is fixed to the machine, and the flange 141a at the front end of the first cover 12a is fixed to the processing platform 18 of the processing mechanism. The telescopic protective cover can be extended or collapsed with the movement of the processing platform. When the telescopic protective cover 10 is extended, as shown in FIG. 1, the rear end of the first cover 12a will hook the second cover The flange 141b of 12b can pull the second cover 12b to move, and the rear end of the second cover 12b can hook the flange of the third cover 12c 141c, to pull the third cover body to move, by the mutual hooking and pushing of the cover bodies to produce the action of stretching or collapsing.

From the above description, it can be seen that the telescopic protective cover 10 is formed by a plurality of cover bodies 12 of the same configuration and decreasing size nested with each other. In design, the extension and sliding of each cover body must be smooth, and the cover bodies will not interfere with each other. Or interference, for example, when the first cover 12a moves, the rest of the cover system remains stationary. When the first cover 12a is completely moved out of the second cover 12b (as shown in Figure 1), the rear end system Hook the flange 141b at the front end of the second cover 12b, the second cover 12b will be pulled and move with the first cover 12a, then, after the second cover 12b is completely removed from the third cover At this time, the rear end hooks the flange at the front end of the third cover body and pulls the third cover body to move together.

The inventor is a manufacturer of telescopic covers, and the manufacture of the telescopic covers requires a relatively high precision. For example, the angle θ between the vertical plate 14 and the cover plate 16 of each cover body 12 is made to be exactly 90 degrees Therefore, when the telescopic protective cover made by it is shipped from the factory, the telescopic sliding of each cover body is quite smooth, and there will be no interference or interference with each other. However, the telescopic cover with high precision and smooth sliding smoothness when assembled in the customer's processing machinery often has irregular sliding conditions, which causes manufacturers to often eliminate and solve the problem at the customer's premises, causing many inconveniences and Increase maintenance costs. This problem has long plagued all telescopic cover manufacturers.

After the telescopic cover is assembled in the processing machine, the reason for the slippage is that the first cover 12a will press or press the second cover 12b, causing the first cover to abnormally clamp the second cover So that the two covers move together under the abnormal state of being stuck with each other. The inventor investigated the reason because the processing platform The fixing place of one cover body is uneven or non-vertical, which causes the first cover body 12a to be skewed after the telescopic cover is assembled in the processing machine, so that the second cover body 12b is pressed or pressed against it, causing unevenness. The inventor researched the force and then developed the present invention to solve the lack of disclosure.

The present invention aims to solve the above-mentioned deficiencies, and its main purpose is to provide a telescopic protective cover whose structure can solve the problem that after the telescopic protective cover is assembled in a processing machine, the first cover body presses or bears the second cover body, so that The retractable cover slides smoothly.

The telescopic protective cover provided by the present invention further includes: a plurality of cover bodies with the same configuration and nested in sequence according to their size, wherein the first cover body located at the forefront of the telescopic cover The largest size; the cover bodies can be linked with each other to stretch and collapse; the first cover body has: a cover plate and a vertical plate, the vertical plate is fixed at the front end of the cover plate, and its peripheral edge protrudes from the The outer periphery of the cover plate further forms an outer edge; it also includes: an actuating plate, which is used to be fixed on the movable part of the mechanical equipment; a holding groove, which is recessed inwards from the periphery of the actuating plate; a convex wall, Located behind the receiving slot; the outer edge of the first cover is accommodated in the receiving slot of the actuating plate, the depth of the receiving slot is greater than the thickness of the outer edge; when the actuating plate is displaced, the convex wall The outer edge of the first cover is pushed to drive the displacement of the first cover.

With the above structure, when the front end of the telescopic protective cover is connected to a processing platform of a processing machine, the first cover body is not fixed to the wall surface of the processing platform and will not be affected by the The flatness of the wall surface of the processing platform is not accurate or vertical, and all covers can still maintain the precision and smooth sliding state at the time of shipment. The first cover body will not be skewed, will not press or bear against the second cover body, and the entire telescopic protective cover still maintains its smooth sliding at the factory.

The gap reserved between the actuating plate and the flange of the first cover body can eliminate the unevenness of the wall surface of the processing platform or the absence of errors.

20: Telescopic cover

30 (30a, 30b, 30c, 30d): cover

32: Cover

34: card edge

35: Standing board

36: outer edge

38: Silencer

T: thickness

40: Actuator

42: container

44: Bump

45: front plate

46: Rear panel

L: depth

50: processing platform

52: Wall

54: screw

The objectives, features and achieved effects of the present invention can be understood from the description and drawings of the following preferred embodiments, among which:

Figure 1 is a longitudinal sectional view of a conventional telescopic protective cover. A schematic diagram showing the conventional mobile massage chair.

Figure 2 is a perspective view of a telescopic protective cover of a preferred embodiment of the present invention.

Figure 3 is a partially exploded perspective view of Figure 2.

Fig. 4 is a perspective view of an actuating plate of a preferred embodiment of the present invention.

FIG. 5 shows a schematic diagram of the telescopic protective cover of the present invention assembled in a processing machine.

FIG. 6 is a longitudinal cross-sectional view of a telescopic protective cover according to a preferred embodiment of the present invention, and shows that part of the cover is in a telescopic state, and part of the cover is in a collapsed state.

Figure 7 is a partial enlarged view of Figure 6.

Fig. 8 is a horizontal cross-sectional view shown by the section line 8-8 in Fig. 7.

Please refer to FIGS. 2 and 3, which is a telescopic protective cover 20 provided by a preferred embodiment of the present invention, which has a plurality of cover bodies 30 of the same configuration and of decreasing size (or increasing) nesting with each other to produce stretching or According to the linkage relationship of folding, the number of cover bodies 30 of the telescopic protective cover varies according to the needs of the actual installation occasions. From the first cover body to the last one, for example, the size of these cover bodies 30 is decreasing. Taking the four cover bodies 30 as an example, this preferred embodiment is divided into separate cover bodies 30a, 30b, 30c and 30d. In this specification, the component symbol 30 is used as a general term for the cover, and the specific symbols are described with the component symbols 30a, 30b, 30c, and 30d. The cover body of the telescopic protective cover has different configurations. The preferred embodiment only takes a configuration of the cover body of the telescopic protective cover as an example, which is not limitative. The description above, below, both sides, front, back, inside, and outside used in this specification and the scope of patent application are in accordance with the drawings.

Each of the cover bodies 30 has a cover plate 32 and a stand plate 35, and the inner wall surface of the rear end of the cover plate 32 is provided with a card edge 34 (the last cover body 30d is not necessary to provide the card edge 34); the stand plate 35 It is fixed on the front end of the cover plate 32, and the peripheral edge of the vertical plate protrudes from the outer periphery of the cover plate 32 to form an outer edge 36. The four cover systems are nested in order according to their size, thereby forming the telescopic protective cover. The two adjacent cover bodies 30 can slide relatively, and the extension of the cover 34 and the outer edge 36 by the hook Act. In addition, referring to FIG. 6, the vertical plates 35 of each cover plate 30 are provided with a plurality of sound-absorbing blocks 38, so as to absorb the collision between the cover bodies and provide a sound-absorbing effect when the cover bodies 30 are folded. The silencer block is not the main subject of the present invention and will not be described in detail.

Please refer to FIG. 4, the telescopic protective cover 20 of the present invention further includes: an actuating plate 40, a bottom of which has a downwardly and/or inwardly transparent receiving slot 42 and a rear slot 42 for construction The projection 44 of the receiving slot 42 corresponds to the first one The outer edge 36 of the cover. The cover plate 32 shown in this embodiment has a ㄇ-shaped configuration, but it is only an example, not a limitation. As mentioned above, the cover plate of the telescopic protective cover may have a different configuration, such as an N-shaped or ㄑ-shaped configuration . As shown in FIGS. 2 to 4, the cover body 32 of this embodiment is in the shape of an "O", and the actuating plate 40, the cover plate 32 of the cover body (including the first cover body), the outer edge 36 of the cover body and the container The configuration of the groove 42 is similar, and is in a ㄇ shape

Please refer to FIG. 7. In the design of the present invention, the depth L of the receiving groove 42 is greater than the thickness T of the outer edge 36 of the vertical plate 35 of the first cover 30 a. For example, the depth L of the receiving groove 42 is 3mm, and the thickness T of the outer edge 36 is 2.5mm. Therefore, when the outer edge 36 of the vertical plate 35 of the first cover 30a is accommodated in the receiving groove 42 of the actuating plate 40, the outer edge 36 is There is a clearance between the receiving slots 42, that is, there is a clearance between the outer edge 36 and the receiving slot 42 in the longitudinal direction of the telescopic protective cover. At the same time, the outer periphery of the outer edge 36 of the first cover (such as the top edge of the outer edge 36 shown in FIG. 7 and the two side edges of the outer edge 36 shown in FIG. 8) and the wall surface of the receiving groove 42 There is a gap between them.

In addition, the actuating plate 40 can be a one-piece structure; the actuating plate of the preferred embodiment is formed by a front plate 45 and a rear plate 46 side by side and fixed together. The bottom side and/or the inner circumferential edge protrudes downward and/or inwardly more than the bottom side and/or the inner circumferential edge of the front plate 45, and the portion where the rear plate 46 protrudes beyond the front plate 45 forms the convex wall 44; the step difference between the front plate 45 and the convex 44 forms the holding groove 42. Referring to FIG. 7, the thickness of the front plate 45 is greater than the thickness of the outer edge 36 of the first cover 30 a, and the depth of the receiving groove 42 is formed by the thickness of the front plate 45.

The telescopic protective cover 20 is installed on a movable part of a mechanical device, such as a processing platform of a processing machine, and covers a guide rail for the processing platform to move to prevent The cutting chips fall on the guide rail. Referring to FIGS. 5 and 6, the last cover 30d at the rear end of the telescopic protective cover 20 is fixed to the machine, and the front end (including the actuating plate and the first cover) is connected to a processing platform 50. In detail, the actuating plate 40 is fixed to a wall surface 52 of the processing platform 50 by screws 54 or the like, and the outer edge 36 of the vertical plate 35 of the first cover 30a is placed into the actuating plate As shown in FIG. 7 and FIG. 8 in the receiving slot 42 of 40.

When the processing platform 50 moves, for example, to the right in FIG. 6, the actuating plate 40 will hook the outer edge 36 of the first cover 30 a and pull the first cover 30 a to the right together with the processing platform 50 mobile. When the first cover 30a is completely moved out of the second cover 30b, the rear edge of the card edge 34 hooks the outer edge 36 of the front end of the second cover 30b and pulls the second cover 30b to move together. Then, when the second cover 30b is completely moved out of the third cover 30c, the rear edge of the card edge 34 hooks the outer edge 36 of the third cover 30 and pulls the third cover to move together. The cover bodies 30 are sequentially displaced to extend the telescopic cover 20.

Conversely, when the processing platform 50 moves to the left in FIG. 6, the first cover 30a moves on the second cover 30b. When the first cover 30a completely covers the second cover 30b, the first The vertical plate 35 of one cover body will push the vertical plate 30 of the second cover body, thereby pushing the second cover body to move to the left. In this way, the subsequent displacement of the cover body is sequentially pushed, so that the telescopic protective cover 20 is closed . When the cover bodies 30 touch each other, the sound-absorbing blocks 38 will absorb the impact and mute the sound.

The technical means of the present invention is that the telescopic protective cover 20 further includes an actuating plate 40, the cover 30 is pulled to move through the actuating plate 40, and the first cover 30a There is a clearance between the outer edge 36 and the receiving groove 42 of the actuating plate 40. With this design, please refer to FIGS. 6 and 7. When the front end of the telescopic protective cover 20 is assembled on the wall surface 52 of the processing platform 50, the first cover 30 a is not fixed to the wall surface 52. Therefore, Even if the flatness of the wall surface 52 of the processing platform 50 is inaccurate or not vertical, the first cover 30a will not be affected by the wall surface 52, that is, after the telescopic protective cover 20 is assembled in the processing machine, all The cover 30 can still maintain its precision and smooth sliding state when shipped from the factory. The first cover 30a does not skew, does not press or hold the second cover 30b, so that all the covers 30 can Slide independently and smoothly. The clearance between the groove 42 and the outer edge 36 can absorb the error caused by the wall surface 52 of the processing platform.

As can be seen from the above description, the present invention proposes an innovative structure for the telescopic protective cover, and effectively overcomes the lack of use of the conventional telescopic protective cover after it is assembled in a processing machine, and is sincere to the patent requirements.

The above disclosed embodiments are only illustrative of the technical means of the present invention and are not limited. Any equivalent modification by the present invention should be regarded as the protection scope of the present invention.

30a, 30b: cover

32: Cover

34: card edge

35: Standing board

36: outer edge

40: Actuator

42: container

44: Bump

Claims (7)

A retractable protective cover, comprising: a plurality of cover bodies, the cover systems have the same configuration, and are sequentially sleeved according to their sizes, wherein the first cover body located at the front end of the retractable protective cover has the largest size The covers can be stretched and folded, and the cover in front can be linked to the cover in the rear; the first cover has: a cover plate and a vertical plate, the vertical plate is fixed on the cover plate; The front end, and its periphery protrudes from the outer periphery of the cover plate, thereby forming an outer edge; it also includes: an actuation plate, which is used to be fixed on the movable part of the mechanical equipment; and a holding groove, which is formed by the periphery of the actuation plate It is recessed inwards; a convex wall is located behind the groove; the outer edge of the first cover is accommodated in the groove of the actuating plate, the depth of the groove is greater than the thickness of the outer edge; When the actuating plate is displaced, the convexity is linked to the outer edge of the first cover body to drive the displacement of the first cover body. The telescopic protective cover according to claim 1, wherein: the actuating plate is a one-piece structure. The telescopic protective cover according to claim 1, wherein: the actuating plate has a front plate and a rear plate, the front plate and the rear plate are fixed together, and the peripheral edge of the rear plate is more than the front plate The peripheral edge protrudes downward and/or inward, and the position where the rear plate protrudes from the front plate forms the convex wall; the step difference between the front plate and the convex wall forms the containing groove. The telescopic protective cover according to claim 3, wherein the thickness of the front plate is greater than the thickness of the outer edge of the first cover body. The telescopic protective cover according to claim 1, wherein there is a gap between the outer peripheral edge of the outer edge of the first cover body and the wall surface of the accommodating groove of the actuating plate. The telescopic protective cover according to claim 1, wherein the configuration of the actuating plate and the containing groove is similar to the configuration of the cover plate of the first cover body. The telescopic protective cover according to claim 1, wherein each of the cover bodies has a cover plate and a vertical plate, the vertical plate is fixed at the front end of the cover plate, and the peripheral edge of the cover plate protrudes from the outer periphery of the cover plate, Then, an outer edge is formed; in the two adjacent cover bodies, a clamping edge is provided at the rear end of the larger cover body, and the clamping edge and the outer edge of the adjacent two cover bodies can be hooked to each other.

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